摘要:
An ultrasonic freezing equipment, which includes a casing, a circulating pump system, an ultrasonic generator, a vortex-tube freezing device and a temperature-measuring device. A vertex tube is configured for refrigeration. A circulating salt solution inside the casing is configured to quickly and uniformly take away a heat of a food to be frozen, so as to efficiently freeze the food. A freezing method using the ultrasonic freezing equipment is also provided.
摘要:
A jet nozzle structure of an impact-type freezer includes an orifice plate, a plurality of diversion channels and a plurality of jet nozzles. A plurality of circular openings in a linear arrangement are uniformly distributed in the orifice plate. The diversion channel is a hollow truncated cone including a top opening connected to the circular opening and a bottom opening connected to an inlet of the jet nozzle. The jet nozzle is a hollow cylinder and it has an outlet. A distance between two adjacent circular openings is 40-100 mm, diameter of the circular opening is 30-80 mm, and a height of the diversion channel is 20-60 mm. An inner diameter and a height of the jet nozzle are 6-15 mm and 20-40 mm, respectively. A distance between the bottom opening of the jet nozzle and a conveyor belt is 10-100 mm.
摘要:
The present invention discloses a switchable two-stage and cascade marine energy-saving ultralow-temperature refrigeration system which comprises a high-temperature level refrigeration system, a low-temperature level refrigeration system, a hot fluorine defrosting system of a high-temperature level air cooler and a hot fluorine defrosting system of a low-temperature level air cooler. The hot fluorine defrosting system of the high-temperature level air cooler comprises a high-temperature level compressor of which the outlet is divided into two paths through a first oil separator; and the second path is connected with an air suction port of the high-temperature level compressor through a first solenoid valve, the high-temperature level air cooler, a third solenoid valve, a first pressure relief valve, a first gas-liquid separator, a first one-way valve and a first heat regenerator. The hot fluorine defrosting system of the low-temperature level air cooler comprises a low-temperature level compressor of which the outlet is divided into two paths through a precooler and a second oil separator; and the second path is connected with an air suction port of the low-temperature level compressor through an eighth solenoid valve, the low-temperature level air cooler, a sixth solenoid valve. a second pressure relief valve, a second gas-liquid separator, a third one-way valve and a second heat regenerator. The present invention has the obvious effects of large refrigeration section, high cooling rate, good energy-saving effect and thorough defrosting.
摘要:
Disclosed is an automatic immersion ice-coating machine, including a frame, an ice-coating working pool, a feed port, a conveying device, a control system and a driving system. A first side of the ice-coating working pool communicates with a buffer tank. A bottom of the ice-coating working pool is stepped or inclined, and a drain valve is provided at a bottom of the ice-coating working pool. The conveying device includes a first conveyor belt and a second conveyor belt. The first conveyor belt is located under the feed port, and a lower portion of the first conveyor belt is lower than the liquid level, and the second conveyor belt communicates with the discharge port. The first and second conveyor belts are made of stainless steel mesh belts, and surfaces of the stainless steel mesh belts are provided with separators in a spaced manner.
摘要:
A floating plate type marine refrigerated container system capable of generating electricity by using wave energy that relates to ocean energy, including a machine room, retractable pipes, vertical rise-fall pipes, vertical connecting rods, floating plates, controllers, a rising-falling control button, an indicator light, push-pull handles, grooves, fixed supports, generator sets, wires, a storage battery, a connecting block, a machine room door, a heat dissipation window, sliding areas, a movable plate, a displacement sensor, hinges, sliding shafts, sliding groove groups and the electrical equipment of the refrigerated container. The wave energy in the vertically moving waves is collected by the floating plate, and converted into electric energy. The electric energy are gathered to the storage battery, and finally supplied to the electrical equipment of the refrigerated container.
摘要:
A method for detecting a texture of Takifugu obscurus, including: (S1) removing internal organs and skin of the Takifugu obscurus followed by washing and drying; and removing a head and cutting a flesh on two sides of the Takifugu obscurus along a spine; (S2) cutting a plurality of cylindrical samples with the same shape and size along both sides of the flesh followed by transfer to a pre-cooled petri dish; allowing a cross section of the samples to cling to the petri dish followed by fixing with a petri dish cover; and storing the petri dish in seal at 0-4° C.; (S3) detecting, by a texture analyzer, a texture of each cylindrical sample; and averaging detection results of the samples as a result of the texture of the Takifugu obscurus.
摘要:
An elliptical and funnel-shaped jet nozzle structure includes a plurality of elliptical tapered diversion channels, a plurality of elliptical jet nozzles and a conveyer belt. A wall thickness of each of the elliptical tapered diversion channels is 1-5 mm. A wall thickness of each of the elliptical jet nozzles is 1-5 mm. A thickness of the conveyer belt is 1-5 mm. The elliptical tapered diversion channel is a hollow elliptical truncated cone and it includes an upper opening and a lower opening. The upper opening of the elliptical tapered diversion channel is connected to an elliptical opening, and the lower opening of the elliptical tapered diversion channel is connected to an inlet of the elliptical jet nozzle. The elliptical jet nozzle is a hollow elliptical cylinder.
摘要:
A slender and funnel-shaped jet nozzle structure includes a plurality of slender tapered diversion channels, a plurality of slender jet nozzles and a conveyer belt. The wall thickness of the slender tapered diversion channel is 1-5 mm. The wall thickness of the slender jet nozzle is 1-5 mm. A thickness of the conveyer belt is 1-5 mm. The slender tapered diversion channel is a hollow slender truncated cone and includes an upper opening and a lower opening. The upper opening of the slender tapered diversion channel is substantively elliptic, and the lower opening of the slender tapered diversion channel is connected to an inlet of the slender jet nozzle. The slender jet nozzle is a hollow slender elliptic cylinder.
摘要:
Disclosed is a device and method for preparing composite ice glaze, relating to the field of freshness of aquatic products. The device includes a frame portion, a mother liquid preparation portion, an ice glaze preparation portion, an ice glaze post-processing portion and a controller system; the frame portion includes a shell, a base, and a thermal insulation baffles; the mother liquid preparation portion includes a main water inlet pipe, a water storage tank, mother liquid tanks; the ice glaze preparation portion includes a homogenizing tank, a homogenizing tank inlet pipe, a waste cylinder inlet pipe; the ice glaze post-processing portion includes a reception cylinder, and a waste cylinder. The device provided by the invention is simple to use, and the prepared concentration is accurate and effective, so that the compounding process can be simplified and the compounding efficiency is effectively improved.
摘要:
A method for immersion chilling and freezing tuna by CaCl2 with a low salt penetration amount, characterized by comprising following steps: carrying out a rapid block-cutting treatment on tuna meat under a sterile condition, and then immediately freezing the tuna blocks in CaCl2 salt water with concentrations of 25-30% and temperatures of minus 25 ˜minus 40 DEG C. respectively; completely immersing the tuna blocks in the salt water, directly placing a control group in a refrigerator at minus 25 DEG., and when the central temperature of the tuna blocks achieves minus 18 DEG C., rapidly taking out the tuna blocks from the salt water, and measuring the salt penetration amount and the various quality indexes, wherein a chilling mode for the salt water is to place 400 g of the CaCl2 salt water with the mass concentrations of 25.70%, 27.50%, 28.40% and 29.40% respectively in refrigerators at minus 25 DEG C., minus 30 DEG C., minus 35 DEG C. and minus 40 DEG C., and chilling to setting temperatures of refrigerator, wherein the temperature fluctuation ranges of the refrigerators are +/−1 DEG C. The method disclosed by the invention increases the freezing efficiency of the tuna meat, has a low salt penetration amount, effectively ensures the quality and the taste of the tuna meat, and has a wide application prospect.