CN215951894U - Fluidized quick-freezing device for freezing food liquid by pressure injection - Google Patents
Fluidized quick-freezing device for freezing food liquid by pressure injection Download PDFInfo
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- CN215951894U CN215951894U CN202121987630.4U CN202121987630U CN215951894U CN 215951894 U CN215951894 U CN 215951894U CN 202121987630 U CN202121987630 U CN 202121987630U CN 215951894 U CN215951894 U CN 215951894U
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Abstract
The utility model relates to a quick-freezing device utilizing pressure injection to freeze food liquid fluidization, which relates to a quick-freezing device and aims to solve the problems of slow freezing speed and long freezing time of the conventional food quick-freezing device. The food liquid fluidization quick-freezing device disclosed by the utility model combines air fluidization and immersion type freezing technologies, and jet nozzles are designed on the side wall and the bottom of the groove body to spray low-temperature freezing liquid, so that the heat transfer rate of the surface of the food is improved, and the freezing rate of the food is accelerated. The utility model belongs to the technical field of food freezing and refrigerating.
Description
Technical Field
The utility model relates to a quick-freezing device, in particular to a fluidized quick-freezing device for freezing food liquid by utilizing pressure injection, and belongs to the technical field of food freezing and refrigeration.
Background
With the development of global economy and the acceleration of pace of social life, people's demand for fresh foods is increasing, and freezing is an effective storage method for maintaining the quality of foods and extending the shelf life thereof.
The prior refrigeration and preservation technology of food is divided into slow freezing and quick freezing according to the speed of freezing speed. The slow freezing time is long, the generation speed of ice crystals is slow, the generated ice crystals have large volume, small quantity and irregular distribution, and the damage to the cell tissues of the food is large, thereby affecting the quality of the food. The quick freezing time is short, countless needle-shaped small ice crystals are generated and uniformly distributed, the damage to the cell tissues of the food is small, and the flavor and the mouthfeel of the food are basically not influenced.
The existing quick-freezing devices are classified into air convection type, indirect contact type and direct contact type freezing according to the contact mode of food and low-temperature secondary refrigerant.
The air convection type freezing is to use cooling air as freezing medium to cool and freeze food by utilizing convection heat transfer of gas, and common freezing equipment comprises a fluidized bed quick freezer, a spiral quick freezer and a tunnel quick freezer, but the equipment has lower convection heat transfer coefficient and large energy consumption. Indirect contact freezing is to freeze food material on a cold wall (such as a metal plate) with low temperature, wherein the food is in direct contact with the cold wall but not in direct contact with a low temperature coolant, and the device types are flat plate type, steel belt type, rotary type and the like, but the shape of the frozen food is difficult to control by indirect contact freezing. Direct contact type freezing is to exchange heat by direct contact between food and unfrozen liquid, and can be divided into spray type freezing and immersion type freezing, the freezing rate of direct contact type freezing is high, the dry consumption is low, but the food can absorb part of refrigerating medium, the quality of the food is influenced, and even the food safety problem can be brought.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems of slow freezing speed and long freezing time of the conventional food quick-freezing device, and further provides a fluidized quick-freezing device for freezing food liquid by utilizing pressure injection.
The technical scheme adopted by the utility model for solving the problems is as follows:
the utility model comprises a freezing tank, a cover plate, a bottom bracket, an electric lifting mechanism and a refrigerating unit, wherein the freezing tank is arranged on the bottom bracket, the cover plate is arranged at an opening at the upper part of the freezing tank, the electric lifting mechanism is positioned in the freezing tank, and the refrigerating unit is connected with the freezing tank.
Further, electric lift mechanism includes supporter and four electric putter, and the supporter includes four stainless steel side's pipe, a plurality of baffles and bearing frame component, and four stainless steel side's vertical settings of pipe are the rectangle and arrange, and a plurality of baffles are from top to bottom demountable installation between four stainless steel side's pipe, and the upper end of every stainless steel side's pipe is equipped with bearing frame component, the lower extreme and the bearing frame component fixed connection of every electric putter's telescopic link.
Further, the both sides lateral wall of freezing groove is equipped with lateral wall feed pipe and lateral wall liquid feed pipe respectively, refrigerating unit is connected with the lateral wall of freezing groove through lateral wall liquid feed pipe and lateral wall liquid feed pipe respectively.
Further, this quick-freeze device still includes pressure boost circulating pump, vortex flowmeter and master control electronic box, and pressure boost circulating pump, vortex flowmeter and master control electronic box all install on the bottom support and lie in the right side of freezing groove, and the freezing groove passes through pressure boost circulating pump and is connected with refrigerating unit.
Furthermore, the quick-freezing device also comprises two groups of side wall jet nozzles which are symmetrically arranged on the side walls of the left side and the right side of the freezing tank.
Furthermore, each group of side wall jet nozzles are arranged side by side in a straight line by a plurality of jet nozzles.
Further, the quick-freezing device also comprises a side wall jet flow liquid supply pipe, and the side wall jet flow nozzles are connected with the pressurizing circulating pump through the side wall jet flow liquid supply pipe.
Furthermore, this quick-freeze device still includes the liquid separation board, and the liquid separation board is located the bottom of freezing groove, is equipped with a plurality of bottom jet nozzles on the liquid separation board, and a plurality of bottom jet nozzles are the matrix and set up.
Further, the quick-freezing device also comprises a bottom jet flow liquid supply pipe, and the bottom jet flow nozzles are connected with the pressurizing circulating pump through the bottom jet flow liquid supply pipe.
Further, the side wall jet nozzle and the bottom jet nozzle are both made of 304 stainless steel.
The utility model has the beneficial effects that:
1. the food liquid fluidization quick-freezing device disclosed by the utility model combines air fluidization and immersion type freezing technologies, and jet nozzles are designed on the side wall and the bottom of the groove body to spray low-temperature freezing liquid, so that the heat transfer rate of the surface of the food is improved, and the freezing rate of the food is accelerated.
2. The food fluidized quick-freezing device can rapidly pass through a critical area (from-1 to-8 ℃) of water crystallization, thereby ensuring a fine ice crystal structure in food and preventing cell tissues from being obviously damaged.
3. The food liquid fluidization quick-freezing device is provided with the plurality of nozzles, stirring jet flow is formed by pressurization and is sprayed to the surface of food, the food is in full and uniform contact with low-temperature refrigerating liquid, the food is frozen more uniformly, and the food liquid fluidization quick-freezing device has an excellent appearance.
4. The food liquid fluidization quick-freezing device obtains a fluidization state due to the buoyancy of liquid and the low speed and pressure of low-temperature freezing liquid jet, saves energy and generates minimum mechanical action on food.
5. The food liquid fluidized quick-freezing device can recycle the low-temperature refrigerating fluid for multiple times, reduces the replacement frequency of the low-temperature refrigerating fluid and reduces the production cost.
6. The shelf designed by the food liquid fluidization quick-freezing device is vertically multi-layered and detachable, can freeze a plurality of foods at the same time, has high working efficiency, fully utilizes the space above the height, occupies small area and reduces the operation cost.
7. The food liquid fluidization quick-freezing device is provided with the electric lifting mechanism, so that the operation is easier, the automation is convenient, and the labor cost is greatly reduced.
Drawings
FIG. 1 is a front view of the overall structure of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is an enlarged partial view of the sidewall jet nozzle;
fig. 4 is a schematic structural view of the shelf;
FIG. 5 is a schematic view of the construction of the liquid distribution plate and the bottom jet nozzle;
fig. 6 is a refrigerating unit system configuration diagram.
FIG. 1-freezing chamber; 1-1 side wall feed tube; 1-2 side wall liquid return pipes; 2-cover plate; 3-a bottom bracket; 4-a refrigerating unit; 5-a shelf; 5-1-stainless steel square tube; 5-2 of a separator; 5-3 upper bearing frame component of rack; 6, an electric push rod; 7-a booster circulating pump; 8-vortex shedding flowmeter 9-main control electronic box; 10-sidewall jet nozzle; 11-side wall jet feed tube; 12-a liquid separating plate; 12-1 bottom jet nozzle; 13-bottom jet feed pipe; 14-an electric push rod motor; 15-electric push rod electricity control box.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 and 2, and the quick-freezing apparatus according to the present embodiment includes a freezing tank 1, a cover plate 2, a bottom bracket 3, an electric lifting mechanism, and a refrigerating unit 4, wherein the freezing tank 1 is mounted on the bottom bracket 3, the cover plate 2 is disposed at an upper opening of the freezing tank 1, the electric lifting mechanism is located in the freezing tank 1, and the refrigerating unit 4 is connected to the freezing tank 1.
The inner side panel and the outer side panel of the freezing tank 1 are both 304 stainless steel plates, the middle is provided with a heat insulation material, the heat insulation material adopts hard polyurethane foam, and the whole tank body is of a cuboid tank type container structure with an opening on the upper surface; the bottom bracket 3 is formed by welding equal angle steel and channel steel and plays a role in bottom support.
The second embodiment is as follows: referring to fig. 1 and 2, the embodiment is described, the electric lifting mechanism of the embodiment comprises a rack 5 and four electric push rods 6,
the commodity shelf comprises four stainless steel square pipes 5-1, a plurality of partition plates 5-2 and bearing frame members 5-3, wherein the four stainless steel square pipes 5-1 are vertically arranged and are arranged in a rectangular shape, the partition plates 5-2 are detachably mounted among the four stainless steel square pipes from top to bottom, the bearing frame members 5-3 are arranged at the upper end of each stainless steel square pipe 5-1, and the lower end of a telescopic rod of each electric push rod 6 is fixedly connected with the bearing frame members 5-3.
Other components and connections are the same as those in the first embodiment.
The third concrete implementation mode: referring to fig. 1, the present embodiment is described, in which a side wall liquid supply pipe 1-1 and a side wall liquid return pipe 1-2 are respectively disposed on both side walls of a freezing tank 1, and a refrigerating unit 4 is connected to the side wall of the freezing tank 1 through the side wall liquid return pipe 1-2 and the side wall liquid supply pipe 1-1.
The side wall liquid supply pipe 1-1 and the side wall liquid return pipe 1-2 are both stainless steel pipes, food to be frozen is placed on a storage rack, a motor is started by an electric push rod electric cabinet, the storage rack 5 is lowered into the freezing tank 1, the cover plate 2 is covered, a proper amount of low-temperature refrigerating fluid is supplied into the freezing tank from the side wall liquid supply pipe 1-1 after the refrigerating unit 4 works for a period of time, a food port is immersed in the tank and is in contact with the low-temperature refrigerating fluid and is frozen, the frozen low-temperature refrigerating fluid is pumped back to the refrigerating unit through the side wall liquid return pipe 1-2, and then the frozen food is taken out.
Other components are connected in the same manner as in the first or second embodiment.
The fourth concrete implementation mode: the embodiment is described with reference to fig. 2, the quick-freezing apparatus further includes a pressurizing circulation pump 7, a vortex flowmeter 8 and a main control electrical box 9, the pressurizing circulation pump 7, the vortex flowmeter 8 and the main control electrical box 9 are all installed on the bottom bracket 3 and located on the right side of the freezing tank 1, the freezing tank 1 is connected with the refrigerating unit 4 through the pressurizing circulation pump 7, and the vortex flowmeter 8 is connected with the pressurizing circulation pump 7.
Refrigerating unit 4 moves a period, cools down and supplies the freezing inslot to the low temperature refrigerating fluid, opens the low temperature stop valve, opens through opening of main control electronic box 9 control pressure boost circulating pump 7, vortex flowmeter 8, opens pressure boost circulating pump 7, vortex flowmeter 8 and improves low temperature refrigerating fluid velocity of flow gradually, and the real-time data of flow, the control flow velocity of flow are shown to the flow count display instrument on the main control electronic box 9. The booster circulation pump 7 pressurizes the low-temperature refrigerant liquid, and pressure-feeds the low-temperature refrigerant liquid to the bottom jet flow supply pipe 13 and the side wall jet flow supply pipe 11.
Other components and connection relationships are the same as those in the first, second or third embodiment.
The fifth concrete implementation mode: referring to fig. 2, the present embodiment is described, and the quick-freezing apparatus further includes two sets of side wall jet nozzles 10, and the two sets of side wall jet nozzles 10 are symmetrically installed on the side walls on the left and right sides of the freezing tank 1.
Other components and connections are the same as those of the first, second, third or fourth embodiments.
The sixth specific implementation mode: referring to fig. 1 to 2, the present embodiment will be described, in which each set of sidewall jet nozzles 10 is formed by arranging a plurality of jet nozzles 10 in a straight line.
Other components and connection relationships are the same as those in the first, second, third, fourth or fifth embodiment.
The seventh embodiment: referring to fig. 2, the present embodiment will be described, and the quick-freezing apparatus according to the present embodiment further includes a side wall jet flow supply pipe 11, and the plurality of side wall jet flow nozzles 10 are connected to the pressure-increasing circulation pump 7 through the side wall jet flow supply pipe 11.
Other components and connection relationships are the same as those in the first, second, third, fourth, fifth or sixth embodiment.
The specific implementation mode is eight: the present embodiment is described with reference to fig. 5, and the quick-freezing apparatus according to the present embodiment further includes a liquid separation plate 12, the liquid separation plate 12 is located at the bottom of the freezing tank 1, a plurality of bottom jet nozzles 12-1 are provided on the liquid separation plate 12, and the plurality of bottom jet nozzles 12-1 are arranged in a matrix.
Other components and connection relations are the same as those of the first, second, third, fourth, fifth, sixth or seventh embodiment.
The specific implementation method nine: referring to fig. 2, the present embodiment is described, and the quick-freezing apparatus of the present embodiment further includes a bottom jet supply pipe 13, and each of the bottom jet nozzles 12-1 is connected to the pressurizing circulation pump 7 through the bottom jet supply pipe 13.
Other components and connection relationships are the same as those of the first, second, third, fourth, fifth, sixth, seventh or eighth embodiment.
The detailed implementation mode is ten: referring to fig. 2, the present embodiment will be described, in which the sidewall jet nozzle 10 and the bottom jet nozzle 12-1 are both made of 304 stainless steel.
The left outer side wall and the right outer side wall of the freezing tank 1 are provided with symmetrical side-by-side wall jet nozzles 10, the bottom liquid plate 2 of the tank body is provided with 5 × 5 bottom jet nozzles 12-1, all the nozzles are made of 304 stainless steel, the sealing gaskets are made of nitrile rubber, and the aperture sizes of the nozzles can be adjusted according to actual frozen food. The side wall jet flow liquid supply pipe 11 comprises a side wall jet flow liquid supply main header section, a side wall jet flow pipe section liquid supply header section and a single-strand jet flow liquid supply pipe section, the tail end of the single-strand jet flow liquid supply pipe section is connected with the side wall jet flow nozzle 11, and all the pipelines are stainless steel pipes. The low-temperature refrigerating fluid after being boosted is supplied to the side wall jet nozzle 10 and the bottom jet nozzle 12-1 through the bottom jet liquid supply pipe 13 and the side wall jet liquid supply pipe 11 to spray the food placed on the shelf 5 to finish the refrigeration.
Other components and connection relations are the same as those of the first, second, third, fourth, fifth, sixth, seventh, eighth or ninth embodiment.
The concrete implementation mode eleven: the present embodiment will be described with reference to fig. 6, and the refrigeration unit 4 according to the present embodiment includes a plate heat exchanger 211, a gas-liquid separator 212, a compressor 213, an oil separator 214, a condenser 215, a dry filter 216, an economizer 217, and a thermostatic expansion valve 218. The refrigerant enters the quick-freezing refrigerating unit from the liquid inlet, and enters the tail end quick-freezing device after completing a refrigeration cycle.
The compressor 211 compresses a refrigerant, discharges the compressed gaseous refrigerant, and supplies the compressed gaseous refrigerant to the oil separator 212 through a pipe G1, and the oil separator 212 separates lubricating oil in the high-pressure gaseous refrigerant discharged from the compressor 211 to ensure safe and efficient operation of the apparatus. The condenser 213 is a V-type condenser, and cools and condenses the gaseous refrigerant supplied from the oil separator 212 through the line G2 into a high-pressure liquid refrigerant, and then sends the refrigerant to the dry filter 214 through the line G3 to absorb moisture and solid impurities in the refrigerant liquid, and then enters the economizer 215 through the line G4. The economizer 215 is a heat exchanger for secondary entry into the compressor refrigeration system. The high-pressure liquid refrigerant from the condenser 213 is divided into two parts after entering the economizer 215, one part is further cooled in a heat expansion mode by throttling to reduce the temperature of the other part for supercooling, the stabilized liquid refrigerant realizes the pressure drop from the condensing pressure to the evaporating pressure through a thermal expansion valve 216 through a pipeline G5, and directly enters the plate heat exchanger 217 through a pipeline G6, and the refrigerated low-temperature refrigerating fluid is supplied to the quick freezing device. And the other part of the uncooled gaseous refrigerant passes through the economizer 215 and the communication line G7 of the compressor 211 and reenters the compressor 211 to be compressed and enter the cycle. The gaseous refrigerant from the plate heat exchanger 217 enters the gas-liquid separator 218 through the line G8, is separated, and then reenters the compressor 211 through the line G9, and a new refrigeration cycle is started.
The working process is as follows:
when food is frozen, firstly, the electric control box 15 of the electric push rod is opened, the motor 14 of the electric push rod is started, the telescopic rod of the electric push rod 6 is used for stretching and retracting to lift the shelf 5, the food to be frozen is horizontally placed on the shelf 5, then the food is lowered into the freezing tank 1 and covered with the cover plate 2, the refrigerating unit 4 is operated for a period of time, the low-temperature refrigerating fluid is cooled to-40 ℃,
a low-temperature stop valve is arranged in front of the vortex shedding flowmeter and the booster circulating pump, the two stop valves are opened before the refrigerating unit is started, the main control electric box 9 is opened to enable the booster circulating pump 7 and the vortex shedding flowmeter 8 to work, low-temperature refrigerating fluid in the refrigerating unit 4 is pumped into the booster circulating pump 7 and the flow rate is gradually increased, a flow meter digital display instrument on the main control electric box 9 displays real-time data of flow so as to control the flow rate and the flow rate in the device, the low-temperature refrigerating fluid is boosted by the booster circulating pump 7 and is pumped to the bottom jet nozzle 12-1 and the side wall jet nozzle 10 through the bottom jet fluid supply pipe 13 and the side wall jet fluid supply pipe 11, food to be frozen in the opposite positions 5 of the bottom jet nozzle 12-1 and the left side wall jet nozzle 10 is sprayed and frozen, the low-temperature refrigerating fluid and the food are subjected to convective heat exchange to absorb heat from the food, the cover plate 3 is opened to raise the shelf 5 again after the freezing process is finished, the frozen food is taken out, and the whole working process of the device is completed.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (9)
1. The utility model provides an utilize pressure injection frozen food liquid fluidization quick-freeze device which characterized in that: the quick-freezing device comprises a freezing tank (1), a cover plate (2), a bottom support (3), an electric lifting mechanism and a refrigerating unit (4), wherein the freezing tank (1) is installed on the bottom support (3), the cover plate (2) is arranged at an upper opening of the freezing tank (1), the electric lifting mechanism is located in the freezing tank (1), and the refrigerating unit (4) is connected with the freezing tank (1).
2. The quick-freezing device utilizing pressure injection for frozen food liquid fluidization according to claim 1, characterized in that: electric lift mechanism includes supporter (5) and four electric putter (6), and supporter (5) are including four stainless steel square pipes (5-1), a plurality of baffle (5-2) and bearing frame component (5-3), and four stainless steel square pipes (5-1) are vertical to be set up and be the rectangle and arrange, and demountable installation is between four stainless steel square pipes (5-1) from top to bottom in a plurality of baffles (5-2), and the upper end of every stainless steel square pipe (5-1) is equipped with bearing frame component (5-3), the lower extreme and bearing frame component (5-3) fixed connection of the telescopic link of every electric putter (6).
3. The quick-freezing device utilizing pressure injection for frozen food liquid fluidization according to claim 1, characterized in that: the side walls of the two sides of the freezing tank (1) are respectively provided with a side wall liquid supply pipe (1-1) and a side wall liquid return pipe (1-2), and the refrigerating unit (4) is connected with the side wall of the freezing tank (1) through the side wall liquid return pipe (1-2) and the side wall liquid supply pipe (1-1).
4. The quick-freezing device utilizing pressure injection for frozen food liquid fluidization according to claim 1, characterized in that: the quick-freezing device further comprises a pressurizing circulation pump (7), a vortex street flowmeter (8) and a main control electric box (9), wherein the pressurizing circulation pump (7), the vortex street flowmeter (8) and the main control electric box (9) are all installed on the bottom support (3) and are located on the right side of the freezing tank (1), and the freezing tank (1) is connected with the refrigerating unit (4) through the pressurizing circulation pump (7).
5. The quick-freezing device utilizing pressure injection for frozen food liquid fluidization according to claim 4, characterized in that: the quick-freezing device further comprises two sets of side wall jet nozzles (10) and side wall jet liquid supply pipes (11), the two sets of side wall jet nozzles (10) are symmetrically installed on the side walls of the left side and the right side of the freezing tank (1), and the plurality of side wall jet nozzles (10) are connected with the pressurizing circulating pump (7) through the side wall jet liquid supply pipes (11).
6. The quick-freezing device utilizing pressure injection for frozen food liquid fluidization according to claim 5, characterized in that: each group of side wall jet nozzles (10) is arranged side by side in a straight line by a plurality of jet nozzles.
7. The quick-freezing device utilizing pressure injection for frozen food liquid fluidization according to claim 4, characterized in that: the quick-freezing device further comprises a liquid separating plate (12) and a bottom jet flow liquid supply pipe (13), wherein the liquid separating plate (12) is located at the bottom of the freezing tank (1), a plurality of bottom jet flow nozzles (12-1) are arranged on the liquid separating plate (12), the plurality of bottom jet flow nozzles (12-1) are arranged in a matrix mode, and the plurality of bottom jet flow nozzles (12-1) are connected with the pressurizing circulating pump (7) through the bottom jet flow liquid supply pipe (13).
8. The quick-freezing device utilizing pressure injection for frozen food liquid fluidization according to claim 5, characterized in that: the side wall jet nozzle (10) is made of 304 stainless steel.
9. The quick-freezing device utilizing pressure injection for frozen food liquid fluidization according to claim 7, characterized in that: the bottom jet nozzle (12-1) is made of 304 stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121987630.4U CN215951894U (en) | 2021-08-23 | 2021-08-23 | Fluidized quick-freezing device for freezing food liquid by pressure injection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121987630.4U CN215951894U (en) | 2021-08-23 | 2021-08-23 | Fluidized quick-freezing device for freezing food liquid by pressure injection |
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| CN215951894U true CN215951894U (en) | 2022-03-04 |
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| CN202121987630.4U Active CN215951894U (en) | 2021-08-23 | 2021-08-23 | Fluidized quick-freezing device for freezing food liquid by pressure injection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513878A (en) * | 2021-08-23 | 2021-10-19 | 哈尔滨商业大学 | Quick-freezing system for frozen food and preparation method of refrigerating fluid for system |
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2021
- 2021-08-23 CN CN202121987630.4U patent/CN215951894U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513878A (en) * | 2021-08-23 | 2021-10-19 | 哈尔滨商业大学 | Quick-freezing system for frozen food and preparation method of refrigerating fluid for system |
| CN113513878B (en) * | 2021-08-23 | 2022-05-17 | 哈尔滨商业大学 | Quick-freezing system for frozen food and preparation method of refrigerating fluid for system |
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