81 results about "Cryogenic freezing" patented technology

The invention refers to a new method and device for food quick-freeze storing antistaling field. It proposes an immersing, foaming and spraying method in which the food and the freezing liquid are not connected directly. It uses new natural innocuous superconduction and ultra-low temperature freezing liquid, which is used as the freezing media for conducting cold source, the work temperature range is -20--70deg.C, the speed is 20-60 cm/h; the heat transmission parameter is bigger than 2600 (kcal/ sq m.h.deg.C) ; the food freezing crystal is 0.8-5 um. The device: it uses special film to isolate the freezing basket of food, the self-circulation cooling flow producing; and the freezing liquid reclaiming device.

A method of producing a frozen, microwaveable, coated food product, said method comprising the steps of:

• • providing a portion of a solid or solidified substrate;
  • coating the portion with an aqueous precoating liquid to form a precoated portion;
  • applying a coating of bonding crumb to the precoated portion to form a crumb coated portion;
  • applying a batter to the crumb coated portion to form a batter coated portion;
  • applying a coating of coating crumb to the batter coated portion to form a breaded portion;
  • frying the breaded portion by contacting said breaded portion for at least 100 seconds with hot oil having a temperature of at least 150° C., thereby producing a fried coated portion having a core temperature in excess of 70° C.; and
  • freezing the fried coated portion by introducing said fried portion into a freezer;

wherein the core temperature of the fried coated portion is not less than 50° C., preferably not less than 60° C. when said fried portion is introduced into the freezer and wherein said core temperature is reduced to less than −15° C., using cryogenic freezing

The invention discloses an ice-storage cold-heat pump coupled multi-stage total-heat recovery fresh air processor, belonging to the energy source utilization technology and the air adjusting field. The processor consists of an air exhaust part, a fresh air processing part, a total-heat recoverer and a heat pump system. The heat pump system comprises a compressor, a condenser, a condensation heat recoverer, an evaporator and an expansion valve. The indoor low-temperature low-humidity exhaust air is used for exhausting the condensation heat quantity of a refrigerating system in summer; and the indoor high-temperature high-humidity exhaust air is used for exhausting the evaporation cold quantity of the refrigerating system in winter. The total-heat recoverer performs multi-stage total-heat recovery of fresh air and exhaust air so as to improve the heat recovery efficiency. The heat pump system provides necessary cold quantity and heat quantity to a fresh air processing system. The ice-storage cold provides the low-temperature frozen water to completely dehumidify the fresh air so as to achieve lower moisture content.

An ultra low temperature freezer is optimized with a combination of vacuum and fiberglass insulation for long-term biological storage with accurate process cooling with critical temperature performance. A programmable cooling and cryogenic freezing system uses sealed liquid nitrogen for cooling and freezing. A hybrid completely non-mechanical system exhibits temperature uniformity and reliability, saves space, requires extremely low operating energy and minimizes need for air conditioning in the operating environment. Top-located components control the flow of liquid nitrogen even under flooding conditions. Sectioned inner doors mitigate thermal transfer to other samples and maintain ULT while accessing the freezer.

The cryogenic refrigeration system of the present invention includes: a shield plate for preventing a radiant heat from entering a superconducting magnet; a helium refrigerator for generating a liquid helium, the helium refrigerator including a pre-cooling refrigerator for pre-cooling a helium gas; and a nitrogen refrigerator for cooling nitrogen in a nitrogen tank; and a controller, whereby when a vehicle is running, a low pressure side compressor and a high pressure side compressor are operated, and the helium refrigerator and the nitrogen refrigerator are operated, whereas when the vehicle is not running, the operation of the pre-cooling refrigerator of the helium refrigerator is stopped while the operation of the nitrogen refrigerator is continued.

The invention discloses an independent dehumidification air conditioning method for adjusting humidity by using external ice-melting cold storage and adjusting the temperature by using underground water. By the method, independent dehumidification is realized in an independent dehumidification fresh air handling unit by using the capability of continuously outputting low temperature water of the external ice-melting cold storage, and the temperature is adjusted by an underground water source serving as high temperature freezing water. By the method, the independent dehumidification is realized in the independent dehumidification fresh air handling unit by using the capability of continuously outputting the low temperature water of the external ice-melting cold storage, and the temperature is adjusted by the underground water source serving as the high temperature freezing water; meanwhile, year-round indoor air conditioning parameters are optimized by the existing air conditioning comfort theory, the external ice-melting cold storage is used for low-temperature freezing dehumidification, low temperature air supply is performed and sensible heat load is borne by cheap underground water, an air conditioning mode of independent dehumidification and high temperature freezing water cooling is realized, the energy of the natural world is effectively used, the volume and the operating cost of thermal cold and heat sources are lowered, and needed equipment components are integrated into an integrated product, so that a technical scheme and an energy conservation effect are effectively practiced on the premise of ensuring an air conditioning effect.

The present invention discloses a preparation method for an activated carbon material for drinking water purification. By virtue of an adsorption improver, cryogenic freezing treatment and supercritical water treatment, pore size distribution of the activated carbon is improved. Compared to the prior art, according to a catalytic material provided by the invention, by taking modified activated carbon as a carrier, the number and proportion of mesopores in the activated carbon are increased, the adsorption capacity of small molecule organic substances is stronger, and meanwhile few macropores exist in the pore size distribution, so that the activated carbon material has a certain adsorption capacity on bacteria and microorganisms. Moreover, the adsorbent has the characteristic of being good in formability, can be processed to various specific shapes, and is convenient to mount and use.

A method of producing a frozen, microwaveable, coated food product, said method comprising the steps of: providing a portion of a solid or solidified substrate; coating the portion with an aqueous precoating liquid to form a precoated portion; applying a coating of bonding crumb to the precoated portion to form a crumb coated portion; applying a batter to the crumb coated portion to form a batter coated portion; applying a coating of coating crumb to the batter coated portion to form a breaded portion; frying the breaded portion by contacting said breaded portion for at least 100 seconds with hot oil having a temperature of at least 150 DEG C, thereby producing a fried coated portion having a core temperature in excess of 70 DEG C; and freezing the fried coated portion by introducing said fried portion into a freezer; wherein the core temperature of the fried coated portion is not less than 50 DEG C, preferably not less than 60 DEG C when said fried portion is introduced into the freezer and wherein said core temperature is reduced to less than -15 DEG C, using cryogenic freezing.

The invention provides a liquid-air dual-supply cold source module combining natural cooling and mechanical refrigerating and a control method thereof. The cold source module comprises a closed cooling tower and a cold water machine. The cold source module can be used for simultaneously providing high-temperature freezing water and low-temperature freezing water, and three running modes of single-supply liquid cooling, single-supply air cooling and liquid-air dual supply are switched according to actual demand. Through adjusting running states of an electrically-operated valve and equipment bya temperature sensor, a natural cold source is utilized to the greatest extent, so that the energy consumption of the system is reduced; with the design of an integrated module, installation and capacity expansion are facilitated, and subsequent maintenance is also facilitated; the modules are backup to each other, the running reliability of the system is improved; and two different types of coldwater (such as 35 DEG C natural cooling water and 7 DEG C mechanical refrigerating water) can be provided by the cold source module, a single form of cold water can be independently supplied, two forms of cold water also can be simultaneously supplied, and different application working conditions are met.

Systems, methods, and apparatuses for manufacturing micronized powder. The systems, methods, and apparatuses comprise pre-grinding processing, cryogenic freezing, and grinding of infeed material and warming, ferrous metal and fiber removal, accumulation, screening, and storage of micronized powder. Generally, the warming may involve recirculation of micronized powder through the warming apparatus. Further, the accumulation may permit the grinding and screening to occur at their respectively optimal rates, and the fiber removal, via use of a vibrating screener, may increase the purity of the micronized powder. In one embodiment, the micronized powder comprises micronized rubber powder (“MRP”).

The invention discloses a device for extracting natural floral fragrance hydrolate, essential oil and top note. The device comprises an extraction device, a condensing device, an oil-water separationdevice, a refrigerating device, and a vacuum device which are connected in order, the hydrolate and the essential oil are extracted and separated by the device through the condensing device and the oil-water separation device; the refrigerating device comprises a subcooling condenser, a refrigerating circulating pump and a top note collector; the subcooling condenser is connected with the refrigerating circulating pump, and the top note collector is arranged on the lower part of the subcooling condenser; the lower part of the subcooling condenser is provided with a pipeline to be connected with the oil-water separation device, and the top note enters from the pipeline; and the top of the subcooling condenser is provided with a pipeline to be connected with the vacuum device to vacuumize the whole device. According to the device for extracting the natural floral fragrance hydrolate, the essential oil and the top note, a method of subsection condensation is adopted, the top note can be effectively separated from the hydrolate and the essential oil, the top note is completely collected through a cryogenic freezing method, the device for extracting the natural floral fragrance hydrolate, the essential oil and the top note has the characteristics of low investment, easy operation, high production efficiency and excellent produced product quality, and is suitable for popularization in scale production.

The invention provides a deep cryogenic freezing method for tumor tissue blocks, and relates to tumor tissue freezing methods. The deep cryogenic freezing method is used for solving the problems of the existing tissue cryopreservation methods that the activity of resuscitated tumor cells is remarkably lowered and the tumor forming rate is low. The method comprises the following steps: (1) preparing a cryopreservation solution; (2) treating and freezing the tissue blocks; (3) resuscitating cryopreserved tumor tissue blocks. According to the method, tumor tissue cryopreservation is carried out by using a permeable and impermeable cryopreservation protectant combined method, meanwhile, a preparing proportion of reagents is optimized, the proportion of DMSO in the cryopreservation solution is lowered to 2%, the cytotoxicity of tissue is lowered, a very good protective action on the cryopreserved tissue is achieved, thus, the cryopreserved tissue has relatively high mouse tumor forming performance after resuscitation, and the tumor forming rate reaches 90% or more. The method is applied to the freezing of the tumor tissue.

The invention discloses an extraction method of ganoderma lucidum spore oil. The extraction method has the beneficial effects that grape seeds are adopted as antioxidant donors; after synergistic cooperation of the grape seeds and ganoderma lucidum spore powder, the ganoderma lucidum spore powder has better antioxidation effects, thus effectively avoiding oxidation and rancidity of the active ingredients in the broken ganoderma lucidum spore powder, increasing the oil yield of the ganoderma lucidum spore powder, ensuring the purity and contents of the active ingredients in the ganoderma lucidum spore oil and prolonging the shelf life of the ganoderma lucidum spore oil; the CO2 gas shielded cryogenic freezing shear type breaking technology is adopted: firstly cryogenic freezing is carried out on the spore powder in the grinding process, so that the spore powder is convenient to extrude and break, and CO2 gas shield is adopted as the auxiliary means, so that high temperature damage and deterioration, caused by local overheating of a breaker, of active substances contained in the spore powder in the breaking process can be effectively prevented; shielded by CO2, the obtained crude ganoderma lucidum spore oil undergoes refined filtration in a refined filter and DEAE (diethylaminoethyl) cellulose decoloration treatment to obtain refined ganoderma lucidum spore oil and the refined ganoderma lucidum spore oil is rich in various active functional ingredients, such as ganoderma lucidum triterpenoids and ganoderma lucidum polysaccharides.

A kit is described for use in freezing liquid within a first pipe of a given first diameter and a second pipe of a given second diameter less than the given first diameter. The kit includes a multi-section refrigerant chamber adapted for attachment around a pipe, the chamber having end mounting walls with openings having a diameter greater than the first given diameter; a pair of first adapter plates attachable to the outer faces of the end walls of the chamber sections, the first adapter plates having central pipe receiving openings with a diameter equal to the first given diameter; and a pair of second adapter plates attachable to the outer faces of the end walls of the chamber sections, the second adapter plates having central pipe receiving opening with a diameter equal to the second given diameter. A compressible gasket can be inserted between the chamber sections.

The invention discloses a garment waste leftover material collecting and treating device. The garment waste leftover material collecting and treating device comprises a rack, a water tank and a low-temperature freezing device are fixedly installed on the rack, a conveying device is fixedly installed on one side of the low-temperature freezing device, and an opening and closing door is arranged atthe position, corresponding to the discharging end of the conveying device, of the low-temperature freezing device; and a screening device is further fixedly mounted on the rack, and the screening device is connected with the low-temperature freezing device through a feeding device. According to the garment waste leftover material collecting and treating device, leftover materials are frozen, hardened and then smashed, cooling is conducted in the smashing process so as to avoid rapid melting of moisture absorbed by the leftover materials, entanglement of fibers in the smashing process is avoided, and the smashing difficulty is reduced; and in addition, the screening device in the garment waste leftover material collecting and treating device can achieve continuous feeding and continuous discharging, and the garment waste leftover material collecting and treating device is suitable for industrial continuous production and improves the treatment efficiency.

A water-containing cultural relic freeze-drying dehumidification air conditioning system with an independent temperature and humidity control function comprises a low-temperature freezing dehumidification set arranged outside a freeze-drying room and a dehumidification tail end unit arranged in an equipment room of the freeze-drying room and connected with the low-temperature freezing dehumidification set through a four-way reversing valve. A temperature control system comprises a low-temperature freezing temperature control set arranged outside the freeze-drying room and a temperature control tail end unit arranged in the equipment room of the freeze-drying room and connected with the low-temperature freezing temperature control set through a first expansion valve. The dehumidification tail end unit and the temperature control tail end unit are used for conducting corresponding dehumidification and temperature treatment on air flowing in from an air return grille opening formed between the freeze-drying room and the equipment room, and then the air sequentially passes through an air supply opening formed between the equipment room and an air guide space at the top of the freeze-drying room and an air supply hole plate of the air guide space to be fed into the freeze-drying room. Water-containing cultural relics can be frozen, dehumidified and dried, and the cultural relics can be frozen and preserved for a long time in a low-humidity environment.

The invention discloses a spray freezing tower system which comprises a spray tower, an atomization air pipe, an air curtain air pipe, an air blowing pipe, a material turnover box and a temperature control system, and the spray tower is provided with a freezing cavity. The spray tower comprises a heat exchange tube layer surrounding the freezing cavity and is used for circulating a heat exchange working medium to enable the freezing cavity to be at the freezing temperature, and atomized materials can be frozen. Materials are not in direct contact with a refrigerating medium and are prevented from being polluted. And a recyclable heat exchange working medium is adopted, so that the operation cost of the spray freezing tower system is greatly reduced. The air curtain can reduce the phenomenon that materials adhere to the wall in the freezing process, and the yield is increased. The whole system can realize automatic control through an integrated control system, has online cleaning and online sterilization functions, and can realize accurate temperature control of -100 DEG C to +100 DEG C. According to the spray cooling tower system, low-temperature freezing of materials can be achieved, high yield can be achieved, large-batch production of frozen and dried materials can be achieved in combination with a fluidized bed system, and the efficiency is far higher than that of a freezedryer.

The invention provides a novel low-temperature cold-chain quaternary ammonium salt disinfectant and a preparation method thereof. The disinfectant is prepared from the following raw materials: a compound quaternary ammonium salt, a guanidine disinfectant, a compound anti-freezing synergist, a humectant, an inert auxiliary agent and water. The disinfectant solves the problem that the disinfection effect of an existing disinfectant is weakened and attenuated under the freezing condition, the novel low-temperature cold-chain quaternary ammonium salt adopts a low-temperature-resistant anti-freezing technology, is safe, environmentally friendly, actually non-toxic, colorless, transparent and free of pungent smell, and does not form ice crystals and ice ballasts under the low-temperature condition of -20 DEG C, the product meets the definition of low temperature in national standards, industrial standards and local standards, and the technology also has strong permeability to frost on the surface layer of a frozen object, so that the disinfection effect is optimal, and the object surface environment is thoroughly disinfected in a low-temperature freezing special condition environment.

A method for freezing and thawing proteins is disclosed. The proteins are rapidly frozen by introducing droplets of a protein solution into a cryogenic freezing medium. The frozen pellets thus formed are rapidly thawed by introducing them into a heat transfer fluid to form a reconstitute protein solution.

The invention relates to a device and method for deeply concentrating high-salt-content wastewater through low-temperature phase change crystallization and application, which belong to the field of sewage treatment. The device comprises an inner cooling roller, an outer cooling roller, a first water mist spray head, a second water mist spray head, an inner cooling wall pressing roller, an outer cooling wall pressing roller, an inner cooling wall ice scraping plate, an outer cooling wall ice scraping plate, an ice body conveying disc and a driving device; the cross sections of the inner cooling roller and the outer cooling roller are ring-shaped, and the inner cooling roller and the outer cooling roller are of hollow structures and are filled with cooling liquid; rotating shafts are respectively arranged in the centers of the inner cooling roller and the outer cooling roller, and are respectively connected with a driving device, and theouter cooling roller internally contains theinner cooling roller. The nested double-roller efficient continuous ice-making, ice-removing and cold-transferring device is adopted to realize deep concentration and separation of high-salinity wastewater in a low-temperature freezing phase change crystallization mode, so that the efficiency is high, and the energy consumption is low.