92 results about "Cold preservation" patented technology

The application discloses an aerogel film triboelectric material suitable for full-humidity environment and a preparation method thereof, and belongs to the technical field of functional materials. The preparation method comprises the following technical steps: (1) taking a chitosan and polyvinyl alcohol solution, dissolving the chitosan and polyvinyl alcohol solution in water, uniformly mixing after mechanical stirring, then adding acetic acid, and obtaining a mixed solution through ultrasonic treatment; (2) performing directional freezing on the mixed solution to obtain a block-shaped gel; (3) performing low-temperature preservation on the block-shaped gel, and then performing freeze-drying to obtain an aerogel material; (4) performing cold pressing forming on the aerogel material, and then performing drying in an oven to obtain the aerogel film triboelectric material suitable for full-humidity environment. The material prepared by the application still has high output electric performance in an extremely high humidity environment (RH 99%), solves the problems that triboelectric materials are charge dissipation and electric performance attenuation under high humidity conditions, and provides a new idea for the construction and application of functional materials under full-humidity environment conditions.

The utility model discloses a double-layer vacuum cup which comprises an inner container and an outer shell which are integrally formed, the top of the inner container and the top of the outer shell are connected into a whole, a vacuum layer is formed between the inner container and the outer shell, a vacuum bottom layer is arranged at the bottom of the outer shell, and a vacuumizing position used for pumping air out of the vacuum layer is arranged on the vacuum bottom layer. The vacuum bottom layer is provided with a vacuum solder layer used for blocking the vacuumizing position. A plugging layer is further arranged at the bottom of the shell and located under the vacuum bottom layer; the problems that an existing screw cap type double-layer vacuum cup is limited in use convenience, and a common open cup cannot achieve heat preservation and cold preservation are solved. According to the open type double-layer vacuum cup, due to the fact that the vacuum layer is formed between the inner container and the outer shell, heat transfer is effectively reduced, liquid in the cup can be kept at the temperature for a long time, and the good taste can be maintained whether hot water or cold drink exists. Meanwhile, due to the open design, a user can conveniently clean, pour and observe the liquid, and the use convenience is improved.

The application relates to the adsorption and desorption technical field and discloses an adsorption and desorption device and a treatment method for treating light hydrocarbon VOCs waste gas, which comprises an inlet flame arrester, one end of the inlet flame arrester is fixed with a light hydrocarbon VOCs waste gas inlet, the other end of the inlet flame arrester is fixed with a plurality of air draft fans through Y-shaped pipelines, the air draft fans are fixed with adsorption and desorption devices through pipelines, a plurality of functional layers are arranged in the adsorption and desorption devices, the functional layers comprise adsorption and desorption layers, heat preservation and cold preservation layers and condensation and heat exchange layers, oil-water separators are fixed in the condensation and heat exchange layers of the adsorption and desorption devices through pipelines. Through the unique adsorption and desorption device structure design, the pipeline arrangement is greatly simplified, the device land occupation area is effectively reduced, the investment cost is reduced, the temperature control is guaranteed, the safety hidden danger caused by high temperature is avoided, and the problems of space and high investment cost are solved.

The utility model relates to a door lock system for low temperature preservation box and contain its low temperature preservation box belongs to low temperature preservation equipment technical field, that door lock system includes rotary handle lock, electromagnetic lock and controller, rotary handle lock includes lock core, handle installation subassembly, handle and position monitoring subassembly, handle includes rotary lock and handle part, and rotary lock is connected in handle installation subassembly to rotate between first position and second position, when rotary lock is located first position, rotary lock and lock core lock, when rotary lock is located second position, rotary lock and lock core are separated, position monitoring subassembly is used for monitoring whether rotary lock is located first position, controller and position monitoring subassembly and electromagnetic lock are connected communication respectively, to control electromagnetic lock to open the lock when monitoring that rotary lock is no longer located first position. The door lock system adopts rotary handle and electromagnetic lock linkage control, only needs to rotate handle when opening the door, and the operation is simple and convenient.

The invention discloses an integral assembly type operating room which comprises a bottom groove, an outer groove, a main beam, a wall plate, an inclined ceiling hanging groove, a filling plate hanging groove and an air supply ceiling. The bottom groove is connected with the outer grooves through locking mechanisms, the main beam is connected with all the outer grooves, and the wall plates are prefabricated wall plates and are connected with the outer grooves through connecting pieces. A control panel, a heat preservation cabinet, a heat preservation cabinet, an anesthesia cabinet, an instrument cabinet, a medicine cabinet, a film viewer, a gas terminal box, a digital display screen and a socket are integrated on the inner side of the wall plate, the locking mechanism comprises a pre-tightening assembly and a locking assembly, and the connecting piece comprises a T-shaped sliding block and a movable assembly. In addition, operation is quicker, a foundation is laid for later upgrading and reconstruction, quick hanging connection and position adjustment of the wallboards are achieved through the connecting pieces, and position adjustment can be achieved without disassembling the wallboards. The device is reasonable in structure, convenient to install, convenient for later transformation and suitable for rapid assembly requirements of modern hospital operating rooms.

The present disclosure provides methods for maintaining freeze-thaw stability of emulsion-based products during preservation at subfreezing temperature and subsequent warming. The method includes isochoric freezing of an emulsion-based product in a fluid using an isochoric chamber at a subfreezing temperature over a preservation time, where the emulsion-based product maintains freeze-thaw stability during the preservation at the subfreezing temperature. Devices for performing the methods are also provided.

The present application relates to the technical fields of pipeline heat preservation, and discloses a small device pipeline supercritical foaming heat preservation and cold preservation shell and a preparation method thereof, which comprises a heat preservation main body, the heat preservation main body is wrapped outside the pipeline main body, and the heat preservation main body is matched with the pipeline main body; a shell main body, the shell main body is wrapped outside the heat preservation main body, the shell main body is matched with the heat preservation main body, the shell main body comprises a horizontal section and a bending section, and the horizontal section and the bending section are respectively arranged at the straight pipe of the pipeline main body and the bending part correspondingly. The combination design of the supercritical foaming heat preservation structure and the modular metal shell is matched with the matched precision preparation process, and the heat preservation and cold preservation performance, the space adaptability, the installation convenience and the operation reliability are all improved significantly.

The invention relates to the technical field of organ preservation, in particular to an isolated organ preservation device and a preservation method.The isolated organ preservation device comprises a placement frame, a plurality of placement modules are arranged on the inner side face of the placement frame, each placement module comprises a placement box, three placement cavities are formed in the side face of each placement box, and communicating grooves are formed in the tops of the inner side faces of the placement cavities; and a storage module is arranged in the placement cavity, and the top of the inner side face of the placement cavity is slidably connected with a blocking frame corresponding to the communicating groove. According to the device, the top of the inner side face of each placement cavity is slidably connected with a blocking frame, when organs need to be taken out, a first cover plate and the blocking frames can move downwards, the blocking frames move to the bottoms of communicating grooves, and cold air in the communicating grooves can penetrate through the tops of the blocking frames to flow into the next placement cavity at the moment; the device does not affect the interiors of other placement cavities, so that organs in other placement cavities can be continuously preserved at low temperature, the organ function protection effect can be enhanced, and organ preservation research is facilitated.

The utility model relates to liquefied natural gas (LNG) long distance transportation and cold energy utilization technical field, concretely is a kind of LNG long distance transportation system based on composite heat insulation and dynamic cold preservation, LNG long distance transportation system equipment include: upstream LNG receiving station storage tank, LNG long distance transportation pipeline, downstream LNG receiving station storage tank, propane-liquid nitrogen exchanger, open rack type gasifier, LNG comes out from upstream receiving station storage tank, enters downstream receiving storage tank by long distance transportation pipeline, after propane-liquid nitrogen exchanger and open rack type gasifier temperature rising gasification again, enter natural gas pipe network, for downstream user use, the utility model utilizes propane-liquid nitrogen cold screen to carry out active intervention type heat preservation, block most of the heat entering inner tube, to reduce the gasification of LNG in inner tube, improve economic benefit.

The application discloses a kind of high-efficiency low temperature, low noble metal load multi-element bacteriostatic material for organ static cold preservation and its preparation method and application, belong to biomedical materials and organ transplantation technical field.The bacteriostatic material is loaded on TiO2-MO x Low noble metal multi-element bacteriostatic system on composite carrier, general formula is Ag-N / TiO2-MO x Wherein N is one of Cu, Co, Mn, MO x It is one of CeO2, WO3, MoO3.The bacteriostatic efficiency of the material in the present application is greater than 90% in the low temperature interval of 0-40 DEG C to gram-positive bacteria and gram-negative bacteria, effectively overcome the problems of high cost of existing Ag bacteriostatic material and insufficient activity and stability of non-noble metal material, with high bacteriostatic activity, excellent anti-poisoning capacity and low cost advantage, especially suitable for static cold preservation of organ in vitro in organ transplantation, can significantly inhibit bacterial growth, prolong the organ survival time.

The invention relates to the technical field of refrigeration equipment, in particular to a refrigeration device and water treatment equipment. The refrigerating device comprises an ice storage box, an ice making assembly and a water collecting piece. The ice-making assembly comprises an ice-making piece and an ice-making box, the ice-making box is used for containing ice-making water, the ice-making piece comprises a cold insulation part and a refrigeration part, the refrigeration part is at least partially located in the ice-making box and used for making contact with the ice-making water, the cold insulation part is at least partially located in the ice storage area, and the ice-making piece is used for refrigeration; the water collecting piece is arranged in the ice storage box and provided with a water collecting groove, and at least part of the water collecting groove is located on the lower side of the cold insulation part and used for receiving water drops. According to the refrigerating device, the ice making piece comprises the cold insulation part at least partially located in the ice storage area, the cold insulation part covers the ice storage area at low temperature in the refrigerating process of the ice making piece, the heat exchange rate of ice blocks in the ice storage area can be reduced, and therefore the cold insulation condition of the ice blocks in the storage process is improved, and the refrigerating efficiency is improved. And the melting phenomenon caused by the influence of environment temperature is reduced.

The utility model relates to a rotary locking handle and a low-temperature storage box comprising the same, and belongs to the technical field of low-temperature equipment. The rotary locking handle comprises a lock cylinder assembly, a handle mounting assembly and a handle assembly, the lock cylinder assembly comprises a lock cylinder fixing seat and a lock cylinder column. The handle mounting assembly comprises a rotating shaft fixing seat and a rotating shaft; the handle assembly comprises a rotary locking part and a handle part; the rotary locking part is provided with a containing groove, a shaft sleeve connected with the rotary shaft in a sleeving mode is eccentrically arranged in the containing groove, the rotary locking part rotates between a first position and a second position, and the containing groove is provided with an opening; when the rotary locking part is located at the first position, the groove wall of the containing groove abuts against and is locked with the lock cylinder column. When the rotary locking part is located at the second position, the lock cylinder column is located at the opening; a matching face matched with the lock cylinder column is formed on the groove wall of the containing groove, the matching face comprises a plurality of arc column faces connected in sequence, and the radiuses of the arc column faces from the opening position to the locking position are sequentially reduced. The rotary locking handle can ensure locking and is high in reliability.

The utility model discloses a cold storage box fixing assembly for a refrigeration house and the refrigeration house comprising the cold storage box fixing assembly. The fixing assembly comprises a cold storage box serial connection piece and a hoisting piece. The cold storage box serial connection piece comprises two serial connection rods, the hoisting piece is a long-rod bolt, and the screw rod end of the long-rod bolt can penetrate through the serial connection rods from bottom to top and is fixed to a top plate of the refrigeration house. Or the hoisting piece is an external member consisting of a hook and a hoisting line, the hook is fixed on the top plate of the refrigeration house, one end of the hoisting line is fixedly connected with the hook, and the other end is fixedly connected with the tandem rod. The refrigeration house comprises a goods shelf, the goods shelf is composed of stand columns and multiple layers of cross beams, and a plurality of cold storage units are arranged between every two opposite cross beams located on the same layer. The phase change cold storage boxes are arranged on the top plate of the refrigeration house through the fixing assemblies, and the space utilization rate of the refrigeration house is effectively increased. The phase-change cold storage box can store cold energy and release the cold energy at a proper time, so that the temperature in the refrigeration house is stable, and the cold insulation effect of the refrigeration house is remarkably enhanced.

The utility model discloses a folding type cold-chain logistics packaging box which comprises a bottom plate, four corners of the top of the bottom plate are fixedly connected with first aluminum foil composite cloth, the top of the first aluminum foil composite cloth is fixedly connected with a connecting frame, four corners of the top of the connecting frame are fixedly connected with second aluminum foil composite cloth, and the top of the second aluminum foil composite cloth is fixedly connected with a main body frame. A cover plate is hinged to the top of the body frame through a hinge, a supporting assembly is arranged at the bottom of the body frame, and an inserting mechanism is arranged in the bottom plate. According to the packaging box, reliable supporting can be provided for the packaging box through the supporting assembly, rapid and stable connection of the supporting assembly and the box body can be achieved through the inserting-connecting mechanism, the problem that packaging boxes in the market are generally inconvenient to fold in the actual use process is solved, and therefore the packaging boxes occupy a large amount of space in the idle storage stage; and for goods needing to be stored at low temperature, the heat preservation performance of the packaging box is poor, and the packaging box has the advantage of being convenient to fold.

This invention relates to the fields of biomedical engineering and temperature control technology, and discloses a method and system for predicting the three-dimensional temperature field during the cooling and rewarming process of organ cryopreservation. The method includes: constructing and preprocessing a simulation dataset and a real experimental dataset covering the cooling and rewarming process; constructing a transient temperature query network, fusing global physical field features, multi-scale local features, and spatial location information; training the model using a fusion physical constraint loss function containing data fitting loss and spatial smoothing loss; and inputting the thermophysical parameters of the organ to be predicted and sparse temperature observation data to achieve accurate prediction of transient temperature at any spatial location. This invention effectively alleviates the prediction bias caused by the difference between simulation and real distributions, improves the model's generalization performance and the physical rationality of the prediction results, and can be directly applied to fine-grained temperature control systems for organ preservation, providing reliable support for organ function protection and improved transplant success rates, thus possessing significant clinical application value.

The invention discloses a high-efficiency low-temperature low-noble-metal-loaded multi-element antibacterial material for static cold preservation of organs as well as a preparation method and application of the high-efficiency low-temperature low-noble-metal-loaded multi-element antibacterial material, and belongs to the technical field of biomedical materials and organ transplantation. The antibacterial material is a low noble metal multi-element antibacterial system loaded on a TiO2-MOx composite carrier, the general formula of the antibacterial material is Ag-N / TiO2-MOx, N is one of Cu, Co and Mn, and MOx is one of CeO2, WO3 and MoO3. The antibacterial efficiency of the material to gram-positive bacteria and gram-negative bacteria within the low-temperature interval of 0-40 DEG C is larger than 90%, the problems that an existing Ag antibacterial material is high in cost and a non-noble metal material is insufficient in activity and stability are effectively solved, and the material has the advantages of being high in antibacterial activity, excellent in poisoning resistance and low in cost; the cold storage agent is especially suitable for static cold storage of isolated organs in organ transplantation, and can significantly inhibit bacterial breeding and prolong organ keep-alive time.

The application relates to a refrigerator control method and device, a refrigerator equipment and a storage medium. The method comprises the following steps: when a deep-freezing function is started, controlling the refrigerator to operate in a first refrigeration mode; when the operation of the refrigerator in the first refrigeration mode is completed, controlling the refrigerator to operate in a preset defrosting mode; when the operation parameters of the refrigerator meet the exit condition of the preset defrosting mode, controlling the refrigerator to exit the preset defrosting mode and operate in a second refrigeration mode; and when the refrigerator operates in the second refrigeration mode and the temperature of the freezing chamber is less than or equal to the deep-freezing refrigeration temperature and the operation parameters of the compressor in the refrigerator meet the preset defrosting condition, performing the step of controlling the refrigerator to operate in the preset defrosting mode. Defrosting is performed on the basis that the temperature of the freezing chamber is less than or equal to the deep-freezing refrigeration temperature, the influence of defrosting temperature rise on the temperature of the freezing chamber is reduced, and long-time stable ultra-low-temperature food preservation can be realized.

1. Name of the product in this design: Medicine Refrigeration Box. 2. Purpose of this design: It is used for the low-temperature storage of insulin pens, injection heads, etc., and can also be used to store other medications. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model discloses a heat exchanger base and a low-temperature preservation box comprising the same, and belongs to the technical field of refrigeration equipment. The heat exchanger base comprises two symmetrically-distributed support assemblies, and each support assembly comprises a bearing beam and a connecting base. Mounting holes are formed in the two ends of the bearing beam in the length direction, and the bearing beam is used for supporting the heat exchanger coil. The connecting seats are in a long strip shape, one ends of the two connecting seats are arranged at the two ends of the bearing beam in the length direction, the two connecting seats are perpendicular to the bearing beam, and the other ends of the two connecting seats are connected with the inner container assembly. According to the heat exchanger base and the low-temperature storage box comprising the heat exchanger base, integrated installation of a heat exchanger fixing structure and a refrigerating system is achieved through topological optimization design, the system stability is effectively improved, and the assembling complexity is reduced.

The invention belongs to the technical field of biology, and particularly relates to a preservation method for improving pork liver quality. According to the preservation method, specific steps of a perfusion technology are optimized, and a quantitative operation process of static cold preservation of the pork liver is established. According to the scheme provided by the invention, the preservation time of the pork liver can be prolonged, the quality of the pork liver is improved, and stable and reliable technical support is provided for related research of pork liver transplantation.

1. Name of the product in this design: Horizontal ultra-low temperature storage box (2). 2. Application of this design: This design is intended for use in hospitals, universities, research institutions, blood banks, disease control centers, livestock farms, pharmaceutical factories, chemical reagent factories, electronics factories, and other institutions to preserve medicines, vaccines, blood, plasma, viruses, bacteria, red blood cells, white blood cells, skin, bones, bacteria, semen, biological products, ocean-going products, electronic devices, and special materials that require special storage temperatures. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention relates to a meat fresh-keeping and freezing method with a low-frequency alternating magnetic field cooperating with a composite antifreeze agent. The method comprises the following steps of fresh meat pretreatment, preparation of a composite antifreeze agent solution, pre-cooling soaking treatment and three-stage freezing treatment. According to the method, a freezing damage mechanism is inhibited by utilizing three dimensions of precise low-temperature preservation, a low-frequency magnetic field and a composite antifreeze agent, and adjustment is carried out according to different stages. The proportion of components of the composite antifreeze agent is prepared according to different proportions for different meats, and different meats are finely protected by controlling the proportion of agaro-oligosaccharide to pigskin gelatin protein peptide, so that the optimal freezing and fresh-keeping effect is achieved. According to the present invention, various meats can be effectively protected, freezing damage can be reduced, protein denaturation can be reduced, ice crystal growth can be inhibited, water molecule migration rate can be reduced, storage shelf life can be effectively prolonged, and good anti-freezing protection effect can be provided.

The utility model discloses a kind of tuberculosis sample cryopreservation transport case, including transport case and the box cover being installed at its top end, the bottom end inside of the transport case is equipped with heat preservation mechanism, the top end of the net plate is equipped with storage mechanism, the utility model relates to sample transport technical field, box cover is taken off from transport case by third handle, box cover moves and will pull string, string will drive net plate to move upwards by lifting ring, net plate will drive storage rack to move, the test tube of storing tuberculosis sample is quickly inserted into the rubber ring of storage rack, box door is opened by the key of door lock and second handle, draw box is drawn out by first handle and sliding block, ice bag is placed into draw box, so when tuberculosis sample is transported by transport case, cryopreservation can be realized, tuberculosis mycobacterium in tuberculosis sample is not easy to lose activity in short time, so more conducive to subsequent tuberculosis sample inspection work.

The invention provides a cooling device performance evaluation method and system based on a failure boundary, and relates to the technical field of effect evaluation, and the method comprises the steps: analyzing the composition structure of a cooling device, and determining a plurality of cold source devices; defining limit working conditions, performing device fault response test on the plurality of cold source devices, and obtaining a plurality of first failure boundaries and a plurality of second failure boundaries; establishing first cold protection effect monitoring data and second cold protection effect monitoring data; and performing fault redundancy cold protection effect evaluation according to the first cold protection effect monitoring data and the second cold protection effect monitoring data, outputting a fault redundancy cold protection effect index, and performing evaluation marking on the cooling device. According to the method and the device, the technical problem that in the prior art, due to lack of quantitative cognition on a fault evolution path, the redundancy capability and the safety margin of the cooling device under different failure working conditions cannot be evaluated, so that the accuracy of cold protection effect evaluation is influenced is solved.

1. Name of the designed product: main body of refrigerator. 2. Use of the designed product: the designed product is used for low-temperature storage of food, articles, etc. 3. Design points of the designed product: in shape, especially in interior layout design. 4. Picture or photo best indicating the design points: perspective view. 5. Other circumstances or explanations: the designed appearance is a partial appearance, and the appearance shown in the red covered area in the view is not required to be protected. The claimed design does not contain color.

1. Name of the product in this design: Refrigerator. 2. Purpose of this design: This design is mainly used for the preservation or display of items at low temperatures. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. Other situations requiring explanation: Part A is made of transparent material.

The application discloses an automatic sterile sampling and low-temperature preservation integrated equipment, and belongs to the technical field of microbial fermentation, comprising a storage mechanism for storing and taking reagents, a blockage cleaning mechanism arranged in the storage mechanism for cleaning pipelines to avoid blockage, and a sending-out mechanism for sending out the reagents; the storage mechanism is provided with precise positioning, closed conveying and ultraviolet disinfection system, realizes automatic sampling, storage and taking of the reagents, does not need manual intervention in the whole process, the equipment is always isolated from the outside world when taking, microbial contamination is effectively avoided, and the accuracy of experimental data and the safety of the reagents are ensured; the application adopts a rotary cleaning cylinder, cooperates with a high-pressure water flow to drive a scraper to rotate and clean the inner wall of the conveying pipeline, completely removes residual reagents, prevents pipeline blockage and cross contamination, and significantly improves the long-term stability and reliability of the equipment.

This invention provides a method, apparatus, equipment, and medium for monitoring the entire lifecycle of pharmaceuticals. The method includes: loading pharmaceuticals to be stored into a transport device and establishing a binding relationship between the pharmaceuticals and the transport device; transporting the pharmaceuticals to be stored using the transport device and generating a flow record until successful storage; loading the corresponding pharmaceuticals into a storage device according to dispensing requirements and collecting pharmaceutical usage information from the storage device; when pharmaceuticals require low-temperature storage, controlling the internal temperature of the transport device and storage device within a preset range using a pre-installed refrigeration module and / or phase change cold storage material; and generating blockchain reporting information and a pharmaceutical flow traceability report based on the first temperature information, flow record, second temperature information, and pharmaceutical usage information for each pharmaceutical. This invention can provide reliable protection for pharmaceutical transportation and full-chain flow monitoring.