15results about How to "Fast freezing" patented technology

The utility model relates to a liquid nitrogen quick-freezing device which comprises a cabinet body, a storage assembly, a jacking assembly, a liquid nitrogen assembly and an exhaust assembly. The cabinet body is provided with a containing groove which is used for containing the storage assembly. The storage assembly comprises a storage rack and a tray; the storage rack is vertically provided with a storage plate, the tray is arranged on the storage plate, and a plurality of first air holes are formed in the tray; the jacking assembly is fixedly connected with the cabinet body, and the jacking assembly is used for penetrating through the first air hole to jack food; the liquid nitrogen assembly is externally connected with liquid nitrogen supply equipment and used for spraying liquid nitrogen into the containing groove. The exhaust assembly is used for exhausting gas in the containing groove. According to the food tray, the liquid nitrogen assembly sprays liquid nitrogen into the containing groove, and the liquid nitrogen is gasified to absorb heat so as to quickly freeze food on the tray; the jacking assembly penetrates through the first air holes of the tray and then jacks the food, so that the lower surface of the food is separated from the tray, or the food is jacked and moved, and therefore the freezing speed of the lower surface of the food is increased, and the food freezing uniformity is improved.

The low-noise freezer adopting the R290 working medium comprises a compressor, an evaporator, a condenser and a storage device, the outlet end of the storage device is connected with the inlet end of the compressor through a pipeline, the outlet end of the compressor is connected with the inlet end of the condenser through a pipeline, and the outlet end of the condenser is connected with the inlet end of the evaporator through a capillary tube. The outlet end of the evaporator is connected with the inlet end of the reservoir through a pipeline; wherein the compressor, the evaporator, the condenser and the storage device form a freezer circulating refrigerating system, and a refrigerant circularly conveyed in the freezer circulating refrigerating system is an R290 working medium. In the using process of the low-noise freezer, the cooler and the evaporator which are of a large-area structure are adopted, and the compressor with the large cooling capacity is adopted, so that the heat exchange effect of a circulating refrigerating system of the freezer can be enhanced, and food can be better stored.

The utility model relates to the technical field of reagent freezing, in particular to a quick pre-freezing device for a freeze-drying reagent, which comprises a pre-freezing box, a pre-freezing chamber, a cooling system, a rotating device and a temperature control system, and is characterized in that the pre-freezing chamber is arranged in the pre-freezing box, the cooling system comprises a refrigerant, a cooling circulating pipe and a radiator, and the rotating device is arranged in the pre-freezing box. The cooling circulating pipe is arranged on the side wall of the pre-freezing chamber, the refrigerant circularly flows in the cooling circulating pipe, the radiator is installed on the back wall of the pre-freezing box, the multiple pre-freezing plates can be pre-frozen at the same time due to the fact that the multiple sets of installation bases are arranged, cold air can be promoted to flow in the pre-freezing chamber through rotation of the pre-freezing plates, and the cooling effect is improved. The contact area of cold air and the reagent is increased, so that the freezing speed is increased, the freezing efficiency is improved, the pre-freezing time is shortened, the cold air can be uniformly distributed to each corner of the pre-freezing chamber by rotating the pre-freezing plate, and the temperature distribution in the whole pre-freezing chamber is more uniform.

This invention relates to the field of freeze-drying technology, specifically to an intelligent vacuum freeze dryer and its usage method. The dryer includes a main unit and a pre-freezing vacuum chamber within it, a shelf placed inside the pre-freezing vacuum chamber, the shelf having an internal cavity and a main gas inlet at its bottom for gas to enter the internal cavity; a carrying tray with multiple evenly arranged internal components for storing materials, the tray having multiple planar grids and heating elements for releasing heat, multiple push rods for moving materials within the planar grids, and an adjustment component for adjusting the position of the push rods according to different usage environments; and side rotating columns with multiple evenly rotatable components connected to the sidewalls of the carrying tray, each side rotating column having multiple exhaust ports, and the carrying tray having an efficiency-enhancing component for driving the side rotating columns.

A kind of NK cell freezing equipment, including cell freezing box, freezer, sealing door, the cell freezing box is connected sealing door by hinge, cell freezing box bottom is connected freezer, cell freezing box bottom plate has multiple exhaust holes, exhaust holes are evenly distributed on cell freezing box bottom plate, cell freezing box inside has protective box, protective box inside has auxiliary cavity, two freezing pipes are provided in auxiliary cavity inside, freezing pipe is symmetrically arranged, freezing pipe bottom passes through cell freezing box and is connected with freezer, air outlet pipe outside cell freezing box passes through protective box and is connected with exhaust pipe, freezing speed is fast, freezing effect is good, cell survival rate is high, access is convenient, wide application range, simple operation, it is convenient to adjust, structure is reasonable, effectively avoid that cell storage pipe 14 is inclined and spills, limiting effect is good.

The present invention relates to the field of aquatic product freezing technology, specifically to a device and method for ultrasonic-assisted quick freezing of aquatic products, wherein the device for ultrasonic-assisted quick freezing of aquatic products comprises a freezer with a door on the front side, a partition is fixed near the inner top wall of the freezer, an atomizing mechanism is arranged above the partition in the freezer, a mounting sleeve with the bottom opening facing downward is arranged below the partition, an ultrasonic generating device is arranged in the mounting sleeve, the atomizing mechanism is used to atomize water into fine droplets and then transport them into the mounting sleeve, and the ultrasonic generating device is used to generate ultrasonic waves to cavitate the water droplets in the mounting sleeve. The present invention uses ultrasonic waves to evenly attach fine droplets to the outer surface of the aquatic product, and continuously forms tiny bubbles with high energy state in the fine droplets, which absorb surrounding heat and collapse rapidly, improve heat transfer efficiency, accelerate the transfer of cold in the frozen air to the surface of the aquatic product, and thus accelerate the freezing speed of the aquatic product.

The household appliance comprises an electric appliance cabinet, a stainless steel inner container is movably connected to the top of an inner cavity of the electric appliance cabinet, baffles are symmetrically and movably connected to the left side and the right side of the bottom of the stainless steel inner container, and a locking assembly is rotationally connected to the top of the front face of the electric appliance cabinet; the bottom of an inner cavity of the electric appliance cabinet is rotatably connected with a recycling assembly, an inner cavity of the recycling assembly is movably connected with a recycling barrel, an inner cavity of the recycling barrel is movably connected with an arc-shaped collecting plate, the top of the right side of the electric appliance cabinet is fixedly connected with a vacuumizer, the bottom of the right side of the electric appliance cabinet is provided with a storage groove, and the top of an inner cavity of the storage groove is rotatably connected with a winding roller. And the center of the bottom of the electric appliance cabinet is fixedly connected with a cold-carrying liquid treatment cabinet. According to the household appliance using the cold carrying liquid for freezing, ice crystals generated by the household appliance in the food freezing process are faster and smaller, and the cell structure of the food is kept intact, so that the original freshness, original nutrients and original taste of the quick-frozen food can be kept.

The invention discloses a freezing device for avoiding air blockage at the tail end of a pipe in freezing construction, which comprises a liquid supply pipe and a freezing pipe, the liquid supply pipe is inserted into the freezing pipe from the pipe orifice of the freezing pipe and extends to the pipe bottom of the freezing pipe, and the liquid supply pipe is communicated with the freezing pipe through fluid; the freezing device further comprises a tail end partition plate and a saline water channel pipe, the tail end partition plate is installed on the portion, inserted into the freezing pipe, of the liquid supply pipe, and the outer circumferential face of the tail end partition plate is matched with the inner wall of the freezing pipe in a sealed mode. By means of the specific structural design, it is ensured that low-temperature saline water can fully fill the whole freezing pipe, especially the tail end of the pipe, the gas blocking phenomenon is avoided, and the effective freezing distance and the freezing effect of the freezing pipe are ensured.

The utility model discloses a kind of frozen transport frames for cold storage ice plate, comprising: underframe, it is horizontally arranged, and the four corners position of lower end surface is all provided with universal wheel;Top frame, it is horizontally arranged above the underframe;Side frame, it is vertically arranged between the two sides of the underframe and the top frame;Tray, it is horizontally and layered arranged between a pair of side frame.The utility model has the following advantages and effects: by setting movable transport frame, the layered support of ice plate is realized, sufficient heat exchange space is ensured between ice plate, and it is convenient to push uniformly, the ice plate freezing speed of freezing out is fast, ice plate cannot be deformed, so that batch freezing and cold release operation are facilitated.

The invention discloses a drying method for fresh traditional Chinese medicinal materials, which comprises the following steps: firstly, primarily drying the cleaned fresh traditional Chinese medicinal materials by using steam, then controlling the initial air expansion pressure ratio by using compressed air, quickly cooling to-20 to-60 DEG C within 10-30 minutes, and finally changing the air expansion pressure ratio to dry. And the refrigerated mixed gas is blown to the surfaces of the traditional Chinese medicinal materials in the form of cold dry air which is 10-30 DEG C lower than the eutectic point of the traditional Chinese medicinal materials, so that the moisture content of the traditional Chinese medicinal materials is reduced to 12% or below. The drying method has the advantages of being high in freezing speed, low in cooling temperature and high in drying speed, enzyme and sensitive chemical components can be comprehensively reserved, the content of the enzyme and the sensitive chemical components is high, the use requirements of the fresh traditional Chinese medicinal materials are met, a theoretical basis is provided for drying treatment of the fresh traditional Chinese medicinal materials, and the cost is reduced. Technical support and reference methods are provided for quality control of traditional Chinese medicinal materials, and the method is suitable for popularization and application.

The present invention discloses an alternating air supply tunnel type freezing device, comprising an internal freezing tunnel and a variable speed wrap-around conveyor belt, wherein the upper and lower sides of the conveyor belt in the freezing tunnel are both provided with cold air supply ducts, air supply fans and air supply ports, and the characteristic is that: in the air supply port, the upper side is an arched lower jet air supply slit, and the lower side is an upward blowing floating air supply orifice plate, and at the same time, the upper and lower air ports are staggered forward and backward along the conveying direction to avoid airflow collision, realize alternating upper and lower air supply, and synchronous freezing. The alternating air supply tunnel type freezing device has a reasonable structure, high freezing efficiency, ensures the freezing quality of materials, and reduces the energy consumption of the equipment, and has a broad market prospect.

This utility model discloses a tunnel-type liquid nitrogen quick-freezing device for preserving fresh wet noodles, relating to the field of liquid nitrogen quick-freezing technology. It includes a frame, on which a housing and a wire mesh conveyor mechanism are fixedly installed. The housing has an inlet and an outlet at both ends. A quick-freezing unit, a cleaning unit, a detection unit, and a recovery unit are fixedly installed inside the housing. The wire mesh conveyor mechanism passes through the inlet and outlet. The beneficial effect lies in the use of air-knife type nozzles in conjunction with honeycomb guide plates to rectify and evenly spray cold air containing liquid nitrogen. The flow direction of the cold air is changed by the baffles, allowing it to flow evenly around the product and efficiently cover it from both sides, significantly improving the freezing speed. The motor drives movable parts to flexibly adjust the nozzle angle, and the tilt sensor ensures precise angle adjustment, enabling the cold air to comprehensively and evenly cover products of different thicknesses, shapes, and heights, effectively improving freezing efficiency and quality.

The utility model relates to the technical field of household appliances, in particular to a refrigerator. The refrigerator comprises a refrigerator body and a partition piece, and a storage space is defined by the refrigerator body; the partition piece comprises a partition plate; the partition plate is arranged in the storage space to divide the storage space into a first area and a second area; wherein the distance between the middle of the first area and the side wall of the storage space is smaller than that between the middle of the second area and the side wall of the storage space. The first area is closer to the side wall of the storage space than the second area, so that the freezing speed of the articles in the first area is higher, and when the articles are placed in the first area, the purpose of quick freezing can be achieved.

The utility model discloses a cryogenic quick-freezing low-noise freezer which comprises a freezer body, a power chamber and a freezing chamber are arranged in the freezer body, a refrigerating system is arranged in the freezer body, and the refrigerating system comprises a compressor assembly arranged in the power chamber, a condenser pipeline arranged on the periphery of the freezing chamber and an evaporator assembly. The compressor assembly comprises a mixed working medium compressor, the output end of the mixed working medium compressor communicates with the input end of a condenser pipeline, the output end of the condenser pipeline communicates with the input end of the evaporator assembly through a capillary tube, and the output end of the evaporator assembly communicates with the input end of the mixed working medium compressor. The temperature of the freezing chamber can reach-40 DEG C, the freezing speed is higher, and food can be better preserved; the compressor assembly further comprises a noise reduction structure arranged in the power chamber, so that the freezer is mute in the starting and stopping process of the compressor, and the noise is not higher than 38 dB (A).

The invention relates to the technical field of stratum freezing, and discloses a stratum freezing method of a long spiral freezer, which specifically comprises the following steps: after the long spiral freezer is drilled into a stratum, in a positive freezing stage, liquid nitrogen is input into a liquid supply pipe, and nitrogen discharged from a pipe body is collected through a collecting pipe; entering a maintenance freezing stage after the positive freezing stage is finished; and in the freezing maintenance stage, liquid nitrogen input is stopped, saline water is input into the liquid supply pipe for freezing maintenance, and the saline water discharged from the pipe body is collected through the collecting pipe until freezing is finished. According to the long spiral freezer, under the cooperation of the spiral blade and the pipe body, drilling and hole forming can be directly conducted, and hole forming does not need to be conducted in advance; and secondly, gas ascending along the cavity can be collected in the collecting section through the collecting pipe, recycling is achieved, low carbon and environmental protection are achieved, after the positive freezing stage adopting liquid nitrogen is finished, saline water is adopted to enter the maintenance freezing stage, and economical efficiency is better.