51results about How to "Thaw evenly" patented technology

The invention provides a radio frequency thawing heating device. The radio frequency thawing heating equipment at least comprises a radio frequency power output module, a control unit, a power module,a heat dissipation system and an electric radiation device. The electric radiation device comprises: a thawing heating cavity; a radiation component which is disposed within the thawing heating cavity; a switch switching module coupled to the radiation component. Compared with the prior art, the radio frequency thawing heating device of the invention has the following advantages: 1) the food is thawed uniformly and quickly, flowing of blood water can be prevented, and the good food quality is ensured to the greatest extent; 2) the food is heated uniformly, hot spots and cold spots can be prevented, the possibility of local overheating or unheating is greatly lowered; 3) the electric radiation device is used to perform thawing, and the reaction speed is fast; and 4) the system is more intelligent, convenient and safe, suitable for households, restaurants and the like.

The invention provides a freezing and unfreezing integrated cabinet which comprises an incubator body and closed containers. The incubator body comprises a freezing chamber and an unfreezing chamber,and box-type frameworks are fixed in the freezing chamber and the unfreezing chamber correspondingly. Sealing plates are fixed on the upper and lower portions and the front and rear portions of each framework. An air exhaust channel plate is fixed to the left side of each framework, and an air return channel plate is fixed to the right side of the framework. The closed containers are in a flat shape and can be erected in the frameworks of the freezing chamber and the unfreezing chamber in a layered mode. Heat conduction fins are welded or riveted on the upper surface and the lower surface of each closed container in rows. One end of a channel formed by a gap between every two adjacent rows of heat conduction fins is aligned at a corresponding air exhaust hole of the corresponding air exhaust channel plate, and the other end of each channel is aligned at a corresponding air return hole of the corresponding air return channel plate; the air exhaust channel plates are provided with the air exhaust holes; the bottom of the framework in the freezing chamber is provided with a cold air generating device; and the bottom of the framework in the unfreezing chamber is provided with a cold and hot airflow generating device. According to the freezing and unfreezing integrated cabinet, the freezing speed and the unfreezing speed are high, breeding of microorganisms can be effectively restrained, the quality of food is better ensured, and moreover, resources can be greatly saved. The invention further provides a method for freezing and unfreezing meat by adopting the integrated cabinet.

The invention relates to a rapid low-temperature microwave thawing method and a thawing device. The thawing method comprises the following steps: putting a frozen object into a thawing container in a microwave thawing machine, introducing flowing low-temperature water in the thawing container, namely keeping the frozen object immersed in a low-temperature water environment, starting up microwaves, and thawing. The water bath with the flowing low-temperature water is adopted for microwave thawing, and when the frozen object is placed in water, water and the frozen object accept microwave energy together, so that possibly produced edge effects are avoided when microwaves alone acts on the frozen object, and edge coking or aging is avoided; at the same time, the flowing water brings away excess heat generated at thin places and surfaces, so as to achieve thawing with relatively uniform inside and outside overall temperatures of the frozen object. When the device is used in thawing of quick-frozen foods, fresh-preservation and thawing effects can be played.

The invention discloses a method for quality-guaranteed and uniform unfreezing of quick-frozen vegetables. The method comprises the following steps: selecting suitable vegetables for cutting, that is fresh vegetable raw materials are selected, cleaned and cut, and different kinds of vegetables are cut into different sizes, and the cutting surface area rate is distinguished according to tuber vegetables, wherein lump vegetables are 1.5 to 2.0 in weight, and leaf vegetables are 1.2 to 1.8 in weight. The method for quality-guaranteed and uniform unfreezing of quick-frozen vegetables, provided by the invention, conforms to nutritional requirements of human bodies and the theory of traditional Chinese medicine, and reduces or avoids the problems of nonuniformity in unfreezing, browning, nutrition loss and the like in the unfreezing process, thereby improving the unfreezing quality of the quick-frozen vegetables.

The present invention provides a radio frequency pulse thawing and heating device and a closed-loop control method thereof. The radio frequency pulse thawing and heating device comprises a radio frequency power output module, a measurement module, a power supply module, an electronically regulated radiation device, a control unit and a heat dissipation system. The electronically regulated radiation device comprises a tuning module, a radiation component and a radiation cavity. A pulse-type thawing and heating method is used to enable thawing of food to be more uniform, at the same time, when different food is thawed by using the pulse method, pulse power duty cycle, peak power, pulse period, etc. can all be regulated, and a problem that uniform thawing of streaky pork, whole chicken, etc.is difficult to be realized technically; the thawing and heating method with peak power control can effectively improve thawing and heating effects of food, and realize balance of fast and uniform thawing and heating of the food; and the closed-loop control of the thawing and heating method can effectively improve speed and uniformity of the thawing and heating of the food.

The invention discloses a low-temperature high-humidity unfreezing machine. The low-temperature high-humidity unfreezing machine comprises a box body, a goods shelf and a cyclic humidifying system, wherein the goods shelf is arranged in the box body, and the cyclic humidifying system is arranged on two sides of the box body; a sealing door with a thermal insulation layer is arranged at an opening in one side of the box body, the thermal insulation layer is arranged at the inner part of the box body, and foot wheels are arranged at the bottom of a shelf body on two sides of the goods shelf respectively; the cyclic humidifying system consists of a steam system, water spraying pipes, cyclic fans and air volume regulating louvers; the steam system consists of an electromagnetic steam valve, manual valves and steam discharging pipes, wherein the steam discharging pipes are communicated with the cyclic humidifying system on the two sides respectively, the cyclic fans are positioned above the steam discharging pipes, the water spraying pipes are arranged under the steam discharging pipes, and the cyclic humidifying system is also provided with temperature controllers respectively. The low-temperature high-humidity unfreezing machine disclosed by the invention uses air as a medium and adopts a low-temperature humidifying manner, so that air with high humidity is circulated under the low-temperature environment, air currents with the high humidity are formed in an unfreezing room, and a phenomenon that the surface of a frozen product is dried is avoided.

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 provides a frozen food material efficient unfreezing cabinet. The unfreezing cabinet comprises a cabinet body. The cabinet body comprises a thermally-insulating box body and closed containers. A box-form frame is fixed into the thermally-insulating box body. An air outlet channel plate and an air return channel plate are fixed to the left side and the right side of the frame. The closed containers are in flat shapes and are arranged in the frame in a layered and erected manner. Rows of heat conduction fins are welded or riveted to the upper surfaces and the lower surfaces of theclosed containers. One end of a channel formed by a gap between every two adjacent heat conduction fin rows is aligned with an air outlet of the air outlet channel plate, and the other end of the channel formed by the gap between every two adjacent heat conduction fin rows is aligned with an air return hole of the air return channel plate. The bottom of the frame is provided with a cold and hot airflow generating device. The device comprises a forced convection fan, an electric heater and an evaporator. The evaporator is electrically connected with a refrigerating unit, wherein the refrigerating unit is arranged on the lower portion of the cabinet body and located outside the thermally-insulating box body. The unfreezing cabinet is high in unfreezing speed; in addition, after food materials are unfrozen by the unfreezing cabinet, nutrition loss and air pollution can be avoided, and quality of the food materials is guaranteed. The invention further provides a method for unfreezing frozen meat through the unfreezing cabinet.

The invention belongs to the field of food processing equipment and particularly relates to defrosting equipment for frozen meat. The defrosting equipment comprises an engine body, a motor, a defrosting grove, a support bracket, meat accommodating baskets and a fan; the support bracket is arranged inside the engine body, and the support bracket is connected with an electric telescopic pole; the meat accommodating baskets are arranged under the support bracket, the defrosting groove is arranged right under the meat accommodating baskets, a rotary table is arranged under the defrosting groove, a motor is arranged on the outer side of the engine body, and the rotary table is connected with the motor through a rotating shaft; a cavity is arranged in the side wall of the engine body, an air duct is arranged in the cavity and is connected with the motor, a plurality of tuyeres are arranged in the air duct, through holes are arranged in the engine body, and the tuyeres penetrate the through holes. By the arrangement, the frozen meat can be defrosted rapidly, defrosting time is shortened, and quality of the frozen meat is guaranteed.

The invention discloses a method for using a microwave defrosting device. The method comprises the following steps: a microwave generator is opened; the microwave generated by the microwave generatoris transmitted into a heating cavity through an aperture on a slot antenna; 2, that control system controlS the first outer shield door mechanism to open, the material to be thawed is input into the inlet inhibiting cavity, and the first outer shield door mechanism is closed; 3, that control system controlS the first inner shield door mechanism and the second inner shielding door mechanism to simultaneously open, the materials to be defrosted in the fee inhibition chamber are inputted to the heating chamber, and the defrosted materials in the heating chamber are outputted to the discharge inhibition chamber, and the first inner shielding door mechanism and the second inner shielding door mechanism are simultaneously closed; 4, that control system controlS the second outer shield door mechanism to open, the thawed material is output from the discharge inhibiting cavity to the outside, and the second outer shield door mechanism is closed; The invention can effectively prevent microwave leakage, make microwave thawing more uniform, improve thawing efficiency and increase energy utilization rate.

A method and apparatus for thawing a commodity includes a plurality of boxes arranged in two rows with a cover for sealing the space between the two rows. A plenum is formed between the two rows of boxes with the plurality of boxes being positioned side-by-side. At least one air handler is provided for pulling air within a predetermined temperature range through ventilation holes in the boxes and along a length of the space formed between the two rows and discharging the air therefrom for thawing the commodity while not raising the temperature of the commodity above a mandated safe zone for longer than a predetermined time. In addition, the air may be forced along the length of the space formed between the two rows of boxes and through ventilation holes in the boxes and / or through spacers positioned underneath adjacent boxes for evenly thawing a commodity positioned in the boxes.

The invention relates to the technical field of the food industry, in particular to a thawing cavity and a radio frequency thawing device. The thawing cavity comprises a metal cavity with an opening,a metal lid capable of covering the opening, an insulating partition board arranged in the metal cavity to divide the metal cavity into a first accommodating cavity and a second accommodating cavity as well as an LC oscillation device arranged in the second accommodating cavity. The LC oscillation device comprises a metal column arranged at the bottom of the second accommodating cavity to serve asan inductor and a metal plate arranged at one end, away from the bottom, of the metal column to serve as a capacitor. A radio frequency power source is electrically connected with the metal column tooutput a radio frequency signal to the metal column, so that the metal column and the metal plate perform oscillation treatment on the radio frequency signal, the radio frequency signal subjected tooscillation treatment is transmitted to the first accommodating cavity in a microwave form, and microwave thawing of a to-be-thawed object arranged in the first accommodating cavity is realized. By means of the device, to-be-thawed objects can be quickly and uniformly thawed, and the taste and nutrients of the objects can be guaranteed.

The invention discloses cell cryopreservation liquid capable of enabling cells to survive for long time, a cell preparation and a preparation method. The cell cryopreservation liquid is mixed liquid containing human serum albumins and CryoSure-DEX40 cryopreservation liquid. The cell preparation comprises the cell cryopreservation liquid provided by the invention and cells. The preparation method comprises the following steps: uniformly mixing the CryoSure-DEX40 cryopreservation liquid and the human serum albumins to form the cell cryopreservation liquid capable of enabling the cells to survive for long time and the cell cryopreservation liquid is slowly injected into washed cell sediment; and the cell cryopreservation liquid is injected and then is uniformly mixed to finally form the cell preparation. After the cell preparation prepared by the preparation method provided by the invention is cryopreserved for long time or transported for a long distance, the survival rate of the cells is still very high; and the cell cryopreservation liquid has a clinic-grade application value; and the limitation that a previous cell preparation can be transported while being prepared is broken through and a utilization geographical range of the cell preparation is enlarged.

The invention discloses a sealed cupboard with drying and thawing functions. The sealed cupboard comprises a cupboard body, wherein closed contact parts of the cupboard body and a cupboard door are correspondingly provided with sealing magnetic strips; an upper cupboard of the cupboard body is provided with a drying device; a middle cupboard of the cupboard body is provided with a microwave thawing device; a power device is arranged on the outer side of the cupboard body. The sealed cupboard can be used for food thawing and kitchenware drying, has a wide application range, and is powered by using solar energy so as to save electric energy.

The invention belongs to the technical field of food processing, and particularly relates to spicy beef slices and a preparation method thereof. The spicy beef slices comprise 60-63% of beef slices, 3.5-3.8% of seasonings, 1.3-1.6% of pickling materials, 0.6-0.9% of chili sections, 0.8-0.9% of pigment liquid, 3.6-3.8% of red oil and the balance of water, and the sum of the total mass percentage content is 100%, wherein the pickling material comprises a compound water retention antioxidant, baking soda, a compound water retention agent, a pickling powder seasoning and sodium carbonate, and the mass ratio thereof is (0.24 to 0.27): (0.4 to 0.5): (0.11 to 0.13): (0.55 to 0.65): (0.05 to 0.07) and the like. The spicy beef slices prepared by the invention are tender and smooth, chewy in mouth feel, strong in juice feeling, and strong in water-holding capacity after repeated unfreezing; the product is stable in color generation.

The invention discloses a method for unfreezing a frozen meat product. The method comprises the following steps of putting to-be-unfrozen bulk frozen meat between two metal polar plates; soaking the metal polar plates and the bulk frozen meat for 60-90 seconds in saline water having a concentration of 1-3 percent; and applying alternating current with different voltages between the two metal polarplates according to the thickness difference of the bulk meat. The method can be used for unfreezing meat quickly, the frozen meat product unfrozen by the method has uniform temperature, little juiceis lost in unfreezing, and the taste of the meat product can be better maintained.

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.

A thawing method for a thawing device includes: generating, by a radio frequency generation module, a radio frequency signal in a frequency range of 40 to 42 MHz; obtaining the radio frequency signal; and generating, by an upper electrode plate and a lower electrode plate, radio frequency waves of corresponding frequency in a thawing chamber according to the radio frequency signal, and thawing an object to be processed in the thawing chamber. Radio frequency waves using the above frequency range have shorter thawing time, higher temperature-uniformity and lower juice loss rate than radio frequency waves of other frequencies.

One embodiment of the invention discloses an unfreezing device. The unfreezing device comprises a radio frequency electromagnetic wave generation device (20), a shell (100) and an unfreezing cavity (302) located in the shell (100). The shell (100) is provided with an electromagnetic wave shielding layer and is provided with a ventilation opening (1001) communicating with the interior and the exterior of the unfreezing cavity (302), and the size of the ventilation opening (100) is designed for not making radio frequency electromagnetic waves transmitted into the unfreezing cavity (302) penetrate the ventilation opening (1001). One embodiment of the invention discloses a refrigerator comprising the unfreezing device. Due to the fact that the ventilation opening with the certain size is formed in the shell, radio frequency wave radiation can be avoided while the unfreezing cavity communicates with the exterior of the cavity. Meanwhile, after a user uses the refrigerator for unfreezing anddoes not take unfrozen food in time, the food can be protected against deterioration.

The invention discloses a quick thawing, sterilizing and fresh-keeping cabinet for a food for thawing the food within a short period of time, sterilizing the food while thawing the food, and then keeping the food fresh, so that good pollution in the thawing process is avoided. A high-voltage transformer is fixedly arranged on a bottom plate of a rear cabin room; a magnetron is fixedly arranged on a waveguide tube; the waveguide tube is fixedly arranged on the rear wall surface of a thawing room; an interference disk module is fixedly arranged on an interference disk module bracket; the interference disk module bracket is fixedly arranged on the rear wall surface of the thawing room; a super heat-conducting element is fixedly arranged in a heat collector; a rack guide rail is arranged on an upper rack guide rail and a lower rack guide rail; a rack is provided with an upper rack and a lower rack; the upper rack is movably arranged on the upper rack guide rail; the lower rack is movably arranged on the lower rack guide rail; an automatic door is provided with a left automatic door and a right automatic door which are movably arranged on automatic door guide rails separately; and the automatic door guide rails are fixedly arranged on the inner walls of the front side and the rear side of the thawing room. Quick thawing, sterilizing and fresh-keeping functions for the frozen food can be achieved.