100results about How to "Fast thawing" patented technology

The invention provides an unfreezing device and a refrigerator. The unfreezing device comprises an unfreezing device body and a high-frequency generator, wherein the unfreezing device body is provided with a cavity which is used for allowing foods to be unfrozen to be placed; and the high-frequency generator comprises one or more pairs of electrode plate assemblies arranged in the cavity. High-frequency waves generated by the electrode plate assemblies act on the foods to be unfrozen, so that all the molecules of the foods to be unfrozen are in the action of the high-frequency waves, the polarity of the polar molecules is subjected to high-frequency changes, the inside and the outside of the unfrozen foods are heated and unfrozen at the same time, the temperature of the unfrozen foods is uniform, the unfreezing speed is high, and the possibility of microbial contamination is reduced; besides, the foods to be unfrozen are quickly dissolved through a largest ice crystal dissolving band, so that the loss of dropping liquid is reduced, the nutrient loss of the unfrozen foods is effectively avoided, and the quality of the unfrozen foods is promoted; and besides, large foods can be unfrozen, and the user experience can be promoted.

The invention relates to a method for quickly thawing frozen pork, in which radio frequency equipment with the frequency of 27.12 MHz is employed to quickly thaw bulk frozen pork. The process is as follows: placing the bulk frozen pork in a space between two metal polar plates of the radio frequency equipment, setting a spacing between the polar plates, starting a radio frequency power supply to perform thawing, and stopping thawing when the temperature at the center of the bulk pork reaches -5-0 DEG C. With the adoption of the method, thawing can be quickly achieved, it only takes few tens of minutes to thaw thick bulk frozen pork, and furthermore, temperature distribution in the pork is uniform after thawing, and little thawing liquid is lost with few contaminant colonies.

The invention relates to a control method of a refrigerator provided with a variable temperature chamber with an unfreezing function. The method comprises the steps of rapidly refrigerating to reach the set refrigeration temperature; closing a compressor and a refrigeration air door, and starting a refrigeration heating wire and a refrigeration fan; heating the variable temperature chamber, and setting the temperature and time until unfreezing. After the control method is adopted, the variable temperature chamber also has the unfreezing function, thus being convenient to use; furthermore, the unfreezing speed of food is enabled to be rapid, and the food such as meat and the like which are not taken out in time can be prevented from going bad.

In systems and methods for freezing and subsequently thawing liquid samples containing biological components, a sample is fractioned into a very large number of small drops (10) having surface area to volume ratios of 1000 m-1 or greater. The drops are projected at a liquid cryogen (40) or at the solid surface of a highly thermally conducting metal cup or plate, where they rapidly freeze. The cold gas layer that develops above any cold surface is replaced with a dry gas stream (75). The environmental temperature experienced by the sample then abruptly changes from the warm ambient to the temperature of the cryogenic liquid or solid surface. To thaw drops with the highest warming rates, the frozen drops may be projected into warm liquids. The sample is projected with cold gas to the warm liquid, so that again there is an abrupt transition in the environmental temperature.

The invention discloses a hericium erinaceus polysaccharide extraction and separation method, which comprises the following steps: S1, obtaining hericium erinaceus powder; S2, freezing the hericium erinaceus powder with liquid nitrogen, unfreezing the hericium erinaceus powder with an unfreezing agent, and repeatedly freezing and thawing the hericium erinaceus powder for three times; S3, introducing inert gas until the pressure is 4000-5500kpa, and rapidly recovering to normal atmospheric pressure to obtain a hericium erinaceus cell suspension; S4, conducting centrifugal separation, and flocculating supernate through a flocculating agent, thus obtaining a hericium erinaceus polysaccharide extract. Hericium erinaceus polysaccharide is extracted evenly and thoroughly, the extraction speed ishigh, and the operation is easy and convenient. The structural integrity of polysaccharide is protected. The extraction rate is high, and pure physical extraction is achieved. The hericium erinaceuspolysaccharide extract is non-toxic, harmless and low in cost.

The invention discloses a refrigerator chamber and a control system thereof. The refrigerator chamber comprises a refrigerator body and a door body for opening and closing the refrigerator chamber. The refrigerator body comprises an inner container formed on the periphery of the refrigerator chamber, an outer shell and a foaming layer arranged between the inner container and the outer shell. A plurality of air flues communicating with other refrigerator chambers are arranged on the refrigerator body. A condenser used for heating is arranged at the bottom of the refrigerator chamber and provided with a shelf. A drainage structure is further arranged in the refrigerator chamber. The refrigerator chamber has a first state and a second state. In the first state, the refrigerator chamber is used for achieving refrigeration, air flue opening and condenser turning off and carrying out refrigeration through a compressor and an external evaporator. In the second state, the refrigerator chamber is used for achieving heating, air flue closing and condenser work and carrying out defrosting and unfreezing through heat emitted by the condenser. The refrigerator chamber can freeze and unfreeze foods, can also be independently used as a freezing chamber, or is used as a refrigerating insulating chamber, and the function application of the refrigerator chamber is quite flexible.

A cryoprecipitation preparation instrument comprises a cabinet body, plasma bags, transfer bags, a refrigeration device, a melting device and weight sensors. The cabinet body comprises a cabinet door. A middle space in the cabinet body forms an air chamber. The transfer bags are located on a working table in the middle of the cabinet body. The plasma bags are connected with the weight sensors and connected with the transfer bags through guide pipes. The plasma bags are higher than the transfer bags. The refrigeration device is composed of a compressor, a cooling pipe and a radiating pipe. The melting device comprises a draught fan, a suction pipe and an air outlet pipe. The air outlet pipe points to the position above the plasma bags located in the middle of the cabinet body. An opening of the suction pipe is connected with a heater. The heater is fixedly mounted on the working table. Clamps are arranged on the guide pipes between the plasma bags and the transfer bags. The clamps and the weight sensors are connected with an electrical control device. The cryoprecipitation preparation instrument is simple in structure and accurate in weighing, effective ingredients are low in attenuation, and full automation of the preparation process can be achieved.

The invention relates to a quick-unfreezing method of frozen squids. The quick-unfreezing method comprises the following steps of freezing a cutter until the temperature of the frozen cutter is the same as that of frozen Peru squids, taking the frozen Peru squids, and cutting the frozen Peru squids to obtain squid blocks; and encapsulating the squid blocks in a plastic bag, putting the plastic bagin a container loaded with water, unfreezing the squids in an ultrasonic-assisted manner, wherein the ultrasonic power is 160W-360W, and the frequency is 40kHz, enabling ultrasonic equipment to workin a manner of enabling the ultrasonic equipment to stop when the ultrasonic equipment works for 50-100 seconds, after 10 seconds, enabling the ultrasonic equipment to continuing working for 50-100 seconds, in the unfreezing process, controlling the water temperature in the container to be 10-28 DEG C, and after 15-20 minutes, completing the unfreezing. The quick-unfreezing method has the advantages that compared with a conventional natural unfreezing manner and a manner of performing unfreezing with running water, quick-unfreezing method disclosed by the invention has the advantages that therunning off rate of squid juice can be reduced, the texture of the squids is not influenced, and the quality of the unfrozen squids is effectively improved. The method is simple in technology and safein process, and is convenient for popularization and application.

The invention discloses a refrigerator chamber and a control system thereof. The refrigerator chamber comprises a refrigerator body and a door body for opening and closing the refrigerator chamber. The refrigerator body comprises an inner container formed on the periphery of the refrigerator chamber, a shell, and a foaming layer arranged between the inner container and the shell. The inner container is provided with an evaporator used for refrigerating. A condenser used for heating is arranged at the bottom of the refrigerator chamber. A shelf is arranged on the condenser. A draining structure is further arranged in the refrigerator chamber. The refrigerator chamber has a first state and a second state, wherein in the first state, the refrigerator chamber is used for refrigerating, the evaporator works, and a compressor is used for conducting refrigerating on the interior of the refrigerator chamber so as to freeze objects in the refrigerator chamber; and in the second state, the refrigerator chamber is used for heating, the condenser works, and heat dissipated by the condenser is used for defrosting and unfreezing the objects in the refrigerator chamber. The refrigerator chamber can be used for freezing and unfreezing food and can also be independently used as a freezing chamber or used as a heat dissipating heat insulation chamber, and therefore function application of the refrigerator chamber is very flexible.

The invention relates to a three-stage unfreezing method for frozen beef, wherein the method includes the following steps: step 1) unfreezing the frozen beef in an unfreezing warehouse with preset temperature and humidity, wherein the humidity in the unfreezing warehouse is 60-90%, and the temperature is 15-25 DEG C; step 2) when the surface temperature of the frozen beef is detected to be -3 to 1DEG C, adjusting the temperature in the unfreezing warehouse to 5-15 DEG C, adjusting the humidity to be 75-95%, and unfreezing; and step 3) when the center temperature of the frozen beef is detectedto be -2.5 to -0.5 DEG C, adjusting the temperature in the unfreezing warehouse to be 0-10 DEG C, adjusting the humidity to be 80-100%, and unfreezing until the unfreezing is completed. The unfreezing method of the frozen beef can effectively improve the unfreezing efficiency of the frozen beef, maintains the quality after the unfreezing of the beef, and has a good application prospect.

The invention relates to thawing equipment for frozen blood products, which comprises a thawing furnace arranged in a box body, a thawing box, a heater and an automatic control device, wherein the heater is a magnetron (microwave generator), the thawing furnace is a microwave thawing furnace, the thawing box is a microwave thawing box which is arranged on a rotatable rotating disk in the microwave thawing furnace, the automatic control device is an infrared temperature probe, an intelligent temperature controller and an electric control element and is connected with the magnetron, a button, an infrared temperature gauge, a timer and an ampere meter through a control circuit, wherein the button, the infrared temperature gauge, the timer and the ampere meter are arranged on an operating panel of the box body. A magnetron microwave water heating method is replaced with a traditional water bath method without preheating, therefore, the preparation time is saved, the thawing speed is high, and the energy and the water are saved; the thawing equipment with a self-providing supply can work for 30 minutes with convenient carrying; by adopting the infrared temperature probe and the intelligent temperature controller, the thawing equipment has high measurement and control accuracy, ensures that the thawing temperature can be automatically adjusted within safety range, guarantees the blood product quality, and is especially suitable for rapidly providing blood products during the emergence of field operations and disasters.

The invention relates to an ohmic heating unfreezing device for aquatic products.The device comprises an unfreezing tank made of an insulation material and a conductive liquid circulating tank; conductive liquid, a pair of electrodes, a first thermocouple and unfreezing frames are arranged in the unfreezing tank; the unfreezing frames are made of the insulation material, the four faces of each unfreezing frame are hollow, the aquatic products to be unfrozen are put in the unfreezing frames, and the first thermocouple is connected with the centers of the aquatic products to be unfrozen and used for monitoring the temperature; the electrodes are connected with a power supply, and the power supply is provided with a current regulator and a voltage regulator; the thermocouple, the current regulator and the voltage regulator are all connected with a data recorder, and the data recorder records currents, voltage and temperature data monitored by the first thermocouple in real time; a refrigerating system, a heating system and a second thermocouple are arranged in the conductive liquid circulating tank; the refrigerating system and the heating system are regulated by a temperature regulator to work separately; pump circulation is formed between the conductive liquid circulating tank and the unfreezing tank made of the insulation material, and the conductive liquid circulating tank and the unfreezing tank made of the insulation material achieve circulation through pump liquid to monitor the temperature of conductive liquid contained in the unfreezing tank.

Disclosed is a box liquid level sensor. The box liquid level sensor comprises a fixing seat, wherein the fixing seat is composed of a fixing seat main body and an upper cover, an electronic pipe is arranged below the fixing seat main body, the upper end of the electronic pipe is installed on the fixing seat main body, a magnetic float cylinder is installed on the electronic pipe, a urea suction pipe, a urea return pipe and a hot water pipe, which can be stretched into a urea box, are assembled below the fixing seat main body, a water inlet and a water outlet are formed in the hot water pipe, a urea suction pipe connector, a urea return pipe connector, and the water inlet and the water outlet of the hot water pipe are all installed on the fixing seat main body, a first heat conducting fin is arranged in the fixing seat, the first heat conducting fin is placed between the fixing seat main body and the upper cover, and a second heat conducting fin is installed in front of the fixing seat main body. The box liquid level sensor is compact in structure, stable in performance, good in vibration resisting performance, good in sealing performance, easy to assemble, low in manufacture cost, strong in environmental adaptability, and suitable for cold regional environments.

The invention discloses a coal and ore microwave thawing device which is composed of a freight train carriage (1), a platform positioning system (2), a thawing room (3), a water screen microwave sealing device (4), a microwave shielding sealing device (5), a dehumidification system (6), a microwave energy feedback system (7), a microwave cooling system (8) and a control system (9). Firstly, coal and ore absorb microwave and emit heat, an ice layer which contacts with the coal and the ore melts into water, the water fast heats up due to the fact that the microwave absorption capacity of water is very strong, then other ice layers are fast melted, and therefore the effect of fast thawing is achieved. According to the coal and ore microwave thawing device, a carriage is directly utilized to be a microwave heating excitation chamber for heating the coal and the ore, speeds of thawing the coal and the ore are fast, thawing time of the coal and ore microwave thawing device is over 50 times than that of a traditional thawing way, energy is saved by 70%, and therefore the coal and ore microwave thawing device is especially suitable for thawing and handling of frozen coal and ore of power plants and marine terminals in cold areas.

A bulk cargo vehicle rapid thawing process is characterized in that firstly, pulling a to-be-thawed vehicle to a heating zone, installing infrared radiation heating devices on two sides of the to-be-heated vehicle in the heating zone, and then conducting the radiation heating to the vehicle through using the infrared radiation heating devices for 5-15 minutes with 400-900 KW electric power, and finally pulling out the thawed vehicle. The process has the advantages and the effects that the thawing speed is greatly increased through adopting the infrared radiation heating method, the construction cost of the process is reduced, the energy is saved, and the smooth production and the normal turnover of the vehicle can not be affected, and the infrared radiating heating device not occupies space, can be installed beside a current.

The invention discloses an electric control fan control method of an automobile, a control device and the automobile. The automobile comprises a post-processing system and an engine. The control method comprises the following steps of detecting the unfreezing state of the post-processing system and the water temperature of the engine; and according to the unfreezing state of the post-processing system and the water temperature of the engine, determining the target operation mode of an electric control fan, and controlling the electric control fan to work according to the target operation mode.According to the electric control fan control method, the electric control fan can be controlled according to the unfreezing state of the post-processing system, and the unfreezing speed of the post-processing system of the automobile under the cold condition is accelerated, and the problem that the unfreezing speed of the vehicle post-processing system is low when a vehicle is in a cold region is solved.

The invention discloses an electric heating type urea liquid level sensor. The urea liquid level sensor comprises an upper base, wherein a power line is fixedly connected to the upper end of the upperbase, handles are installed on the front portion and the rear portion of the upper base through connecting mechanisms, the handles are each of a U-shaped structure, a sensor assembly, a liquid guidepipe and a heating pipe are fixedly connected to the lower end of the upper base, a heat conduction mechanism is arranged on the heating pipe, and the lower end of the upper base is connected with a mounting pipe through mounting mechanisms. According to the urea liquid level sensor, the heat conduction mechanism is arranged on the heating pipe, a fixing pipe of the heat conduction mechanism is arranged outside the heating pipe in a sleeving mode, the fixing pipe is further connected with a spiral pipe, and heat conduction oil fills the interior of the spiral pipe and the interior of a transition pipe; during use, the heat conduction oil in the fixing pipe and the spiral pipe is heated through the heating pipe, then the fixing pipe and the spiral pipe are heated through the heated heat conduction oil, urea liquid frozen in a urea box is heated and unfrozen, the heating area is increased, and then the unfreezing speed is increased.

The invention discloses a quick unfreezing device for food detection, and relates to the technical field of food detection equipment. According to the technical scheme, the quick unfreezing device for food detection comprises a main box body, a cylindrical unfreezing box is arranged in the middle of the interior of the main box body, a baffle is connected with the unfreezing box through a hasp, a plurality of protrusions are arranged on the inner side wall of the unfreezing box, a plurality of water leakage holes are formed in the unfreezing box, water spraying heads are arranged on the two sides in the unfreezing box, a water tank is arranged on the lower side of the main box body and communicates with a water pump, and a rack is connected with a first gear in a meshed mode; and a telescopic rod is rotationally connected to a first fixing shaft on the right side, a first rotating shaft is rotationally connected to the upper end of the telescopic rod, a second gear is fixedly connected to the end, away from the telescopic rod, of the first rotating shaft, and the first rotating shaft is located at the position, deviating from the circle center, of the second gear. According to the device, by arranging the structures such as the unfreezing box and the water spraying heads, frozen food continuously collides with the protrusions, and the unfreezing speed of the food is increased in cooperation with the water spraying heads and hot air.

The invention discloses a thawing device based on a high-voltage electric field. The thawing device comprises at least five positive electrode plates, at least five negative electrode plates and a power end, wherein the positive electrode plates and the negative electrode plates are located in a transparent tank body; a plurality of negative electrode needles are arranged at the bottom of each negative electrode plate; all the positive electrode plates are mounted on a first sliding device which can enable all the positive electrode plates to slide up and down; all the negative electrode plates are mounted on a second sliding device which can enable all the negative electrode plates to slide up and down; a rotating type thawing structure allowing thawing products to be placed is arranged between the positive electrode plates and the negative electrode plates; and a wind power circulating structure which can form circulating wind is arranged. The thawing device disclosed by the invention is used for thawing foods based on a dynamic needle electric field principle and the rotating type thawing structure, so that the thawing speed is high, the thawing is uniform, and the effect of locking nutrient components of the foods is good.

The invention discloses a method for unfreezing, cleaning and maintaining remains. The remains are placed into a closed cabin, low-temperature and high-humidity air which is circulated forcibly is used for swaying the surfaces of the remains, uniform airflow distribution is formed on the surfaces of the remains through the high-humidity airflow, and the remains are unfrozen through heat exchange;the water spraying cleaning mode is utilized, and all-directional spraying and cleaning are performed on the back faces, the front faces and the side faces of the remains; then, the ozone disinfectiontechnology is adopted for performing disinfection treatment on the environment inside a remains agent device; then, warm steam is adopted for performing stifling and maintaining on the surfaces of the remains; exhaust gas and wastewater generated in the operation process are discharged into an exhaust gas and wastewater treatment system, and discharged after treatment. According to the method, the face cosmetic requirement can be met through epidermis unfreezing within 90 min; in the remains unfreezing process, no damage is caused to the remains; the testing process can be monitored through avisual window; the whole process is performed inside the closed space, and no waste liquid or exhaust gas escapes; the wastewater and exhaust gas treatment links are executed, and no damage is causedto the environment.