A micro-freezing liquid control system of a catch immersion type quick-freezing apparatus

Abstract

The application discloses a kind of micro-freezing liquid control systems of fishery impregnation quick-freezing equipment, including circulation component and flow guide component, the circulation component is used and the quick-freezing equipment is matched to form micro-freezing liquid circulation, the flow guide component is suitable for the shunt and direction of micro-freezing liquid, so that micro-freezing liquid enters the quick-freezing equipment from different directions. Design evenly distributed liquid inlet so that micro-freezing liquid is evenly layered in quick-freezing equipment, and balanced through without dead angle, maximize to reach the uniformity of the surface of aquatic products and micro-freezing liquid and cooling.

Description

Technical Field

[0001] This application relates to the field of quick-freezing equipment technology, and in particular to a micro-freezing liquid control system for a fish immersion quick-freezing equipment. Background Technology

[0002] Immersion freezing is a low-temperature processing technology that achieves rapid heat exchange through direct contact between frozen materials and a low-temperature micro-freezing liquid. This technology has advantages such as fast freezing rate, low energy consumption, and the ability to achieve individual quick freezing, while also reducing food dryness loss and maintaining texture and mouthfeel.

[0003] The immersion-type quick-freezing equipment has a relatively closed inner cavity, and the flow of the micro-freezing liquid inside the quick-freezing equipment is relatively slow. This makes it easy for the temperature of the micro-freezing liquid inside the quick-freezing equipment to be uneven, resulting in uneven freezing quality of the fish caught in different locations after freezing. Utility Model Content

[0004] The purpose of this application is to provide a micro-freezing liquid control system for a quick-freezing equipment for immersion-type frozen materials that is easy to control in terms of circulating flow.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a micro-freezing liquid control system for a fish immersion quick-freezing equipment, comprising a circulation component and a flow guiding component. The circulation component is used to cooperate with the quick-freezing equipment to form a micro-freezing liquid circulation, and the flow guiding component is adapted to divert and guide the micro-freezing liquid so that the micro-freezing liquid enters the quick-freezing equipment from different directions.

[0006] As a preferred embodiment, the flow guiding component includes multiple sets of liquid inlets and a liquid inlet network. The multiple sets of liquid inlets are located at different heights of the quick-freezing equipment. The circulation component diverts the micro-freezing liquid from the liquid inlet network into the multiple sets of liquid inlets, so that the micro-freezing liquid flows in in layers at different heights of the quick-freezing equipment.

[0007] As a preferred embodiment, the quick-freezing equipment includes a shelf corresponding to the liquid inlet, the height of the liquid inlet being greater than the height of the corresponding shelf, and the liquid inlet being inclined upwards.

[0008] As a preferred embodiment, the control system further includes a microbubble generator adapted to generate bubbles inside the microfreezing liquid entering the quick-freezing equipment.

[0009] As a preferred embodiment, the microbubble generator is an ultrasonic generator, which is located at the liquid inlet network.

[0010] As a preferred embodiment, the circulation component includes a high-pressure pump for flowing the micro-freezing fluid into the quick-freezing equipment, the high-pressure pump being adapted to generate bubbles within the micro-freezing fluid during operation.

[0011] As a preferred embodiment, the circulation component further includes a baffle plate disposed at the bottom of the quick-freezing device, the baffle plate dividing the inner cavity of the quick-freezing device into a liquid inlet section and a liquid outlet section, the bottom of the liquid outlet section being provided with a liquid outlet.

[0012] As a preferred embodiment, the circulation component includes a refrigeration device and a liquid inlet pump. The refrigeration device includes a used liquid outlet and a cold liquid inlet, and the liquid inlet pump is located between the refrigeration device and the quick-freezing device.

[0013] As a preferred embodiment, the control system further includes a fluid exchange component for replacing the micro-freezing fluid, the fluid exchange component being adapted to drain the old fluid from the circulation component and to introduce new fluid into the circulation component.

[0014] As a preferred embodiment, the fluid exchange component includes a three-way pipe, a storage container, and a fluid exchange pump. The fluid exchange pump is located between the refrigeration equipment and the storage container. Two of the three-way pipes are connected to the circulation equipment, and the other is connected to the storage container.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: The evenly distributed inlet design allows the micro-freezing liquid to stratify evenly within the quick-freezing equipment and pass through in a balanced manner without dead zones, maximizing the contact between the surface of the aquatic products and the micro-freezing liquid, and achieving uniform cooling.

[0016] The microbubble generator uses a high-pressure pump or an ultrasonic generator to form bubbles in the micro-freezing liquid in the channel. The fluids undergo physical actions such as impact, shearing, and cavitation, which reduces the boundary layer resistance between the aquatic products and the micro-freezing liquid and improves the heat transfer efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of one embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the liquid inlet pipeline network and liquid inlet.

[0019] Figure 3 This is a diagram showing the correspondence between the liquid inlet and the shelf.

[0020] Figure 4 This is a schematic diagram showing the addition of an ultrasonic generator to the inlet pipeline network.

[0021] Figure 5 This is a schematic diagram of the baffle.

[0022] In the diagram: 1. Quick-freezing equipment; 2. Circulation components; 3. Liquid exchange components; 4. Liquid inlet pipe network; 5. Liquid inlet; 6. Shelf; 7. Ultrasonic generator; 8. Baffle. Detailed Implementation

[0023] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.

[0025] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0026] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0027] Example: Referring to the figures, this application mainly proposes a micro-freezing liquid control system for a fish immersion quick-freezing device. The immersion quick-freezing device 1 immerses the fish in a micro-freezing liquid, where the low-temperature liquid and the fish exchange heat, causing the fish to freeze rapidly and thus ensuring the quality of the frozen product. Low-temperature liquid quick-freezing technology uses a low-temperature liquid (freezing medium) to exchange heat with food materials, enabling rapid freezing. It has advantages such as simple equipment structure, convenient operation, fast freezing rate, low energy consumption, uniform freezing, and low dehydration. Compared with traditional air-cooled freezing, immersion freezing has higher heat transfer efficiency, allowing the internal moisture of the food to form extremely small ice crystals, reducing damage to cell tissues, and thus better preserving the nutrients and flavor of the food.

[0028] This micro-freezing fluid control system mainly includes a circulation component 2 and a flow guiding component. The circulation component 2 is used to circulate the micro-freezing fluid in the quick-freezing equipment 1. During the process, the micro-freezing fluid needs to be cooled to prevent the temperature of the micro-freezing fluid from rising, thereby ensuring the quick-freezing efficiency during long-term quick-freezing.

[0029] The immersion-type quick-freezing equipment 1 has a relatively closed inner cavity. To address the issue of uneven freezing quality of fish caught in different locations after freezing, a flow guiding component is adapted to divert and guide the micro-freezing liquid, allowing it to enter the inner cavity of the quick-freezing equipment 1 from different directions. The micro-freezing liquid can enter the inner cavity of the quick-freezing equipment 1 from different directions at the same location, or from different locations in the same direction, or from different locations and different directions. Compared to entering from a single location, the micro-freezing liquid entering from different directions creates laminar flow at multiple locations within the quick-freezing equipment 1, resulting in a more uniform temperature of the micro-freezing liquid and ensuring better uniformity in the quality of the frozen product.

[0030] like Figure 1 As shown, the flow guiding component includes multiple sets of liquid inlets 5 and a liquid inlet network 4. The multiple sets of liquid inlets 5 are positioned at different heights within the quick-freezing equipment 1. The circulation component 2 diverts the micro-freezing liquid from the liquid inlet network 4 into the multiple sets of liquid inlets 5, allowing the micro-freezing liquid to flow in in layers at different heights within the quick-freezing equipment 1. For example, there are three sets of liquid inlets 5 (actually three rows), each set including four liquid inlets 5, forming a 3×4 rectangular liquid inlet structure. The liquid inlet network 4 is connected to the circulation component 2, and all liquid inlets 5 are connected to the liquid inlet network 4. After entering the quick-freezing equipment 1 from the multiple sets of liquid inlets 5 at different heights, the micro-freezing liquid enters the quick-freezing equipment 1 with a certain initial velocity in the direction of the liquid inlet 5's installation. The evenly distributed liquid inlets 5 and outlets ensure that the micro-freezing liquid flows evenly and without dead zones within the quick-freezing equipment 1, maximizing the contact between the surface of the aquatic products and the micro-freezing liquid, and achieving uniform cooling.

[0031] The quick-freezing equipment 1 includes a shelf 6 corresponding to the liquid inlet 5. The height of the liquid inlet 5 is greater than the height of the corresponding shelf 6, and the liquid inlet 5 is inclined upwards. Since the newly entered micro-freezing liquid is cooled by the refrigeration equipment, its temperature is lower than that of the micro-freezing liquid in the quick-freezing equipment 1. After entering, the new micro-freezing liquid has a downward tendency. Therefore, the inclined upward setting of the liquid inlet 5 gives the micro-freezing liquid an initial upward velocity. Combined with the downward tendency, this ensures that the newly entered micro-freezing liquid and the original micro-freezing liquid in the quick-freezing equipment 1 are mixed more thoroughly, resulting in faster freezing efficiency and a more uniform freezing effect when in contact with the catch.

[0032] The control system also includes a microbubble generator, which is adapted to generate bubbles inside the micro-freezing liquid entering the quick-freezing equipment 1. Two preferred solutions are presented below.

[0033] (1) The microbubble generator is an ultrasonic generator 7, which is located at the liquid inlet pipe network 4. When the ultrasonic generator 7 is working, it can cause the fluid in the liquid inlet pipe network 4 to vibrate and form bubbles. After the micro-freezing liquid enters the quick-freezing equipment 1, when the micro-freezing liquid with bubbles comes into contact with the fish, the contact resistance can be reduced due to the effect of the bubbles, thereby ensuring sufficient contact between the fluid and the fish and ensuring heat exchange efficiency.

[0034] (2) The circulation component 2 includes a high-pressure pump for flowing the micro-freezing liquid into the quick-freezing equipment 1. The high-pressure pump is the microbubble generator. The high-pressure pump is suitable for generating bubbles inside the micro-freezing liquid during operation. The high-pressure pump can also ensure the extraction and flow of micro-freezing liquid in real time. After the high-pressure pump pressurizes the micro-freezing liquid, it is sprayed out to form a high-speed jet and bubbles are formed in the channel. The fluids undergo physical actions such as high-speed impact, shearing, and cavitation effect, which reduces the boundary layer resistance between the aquatic products and the micro-freezing liquid and improves the heat transfer efficiency.

[0035] The circulation component 2 also includes a baffle 8 installed at the bottom of the quick-freezing equipment 1. The baffle 8 divides the inner cavity of the quick-freezing equipment 1 into an inlet section and an outlet section, with an outlet port at the bottom of the outlet section. As mentioned above, the micro-freezing liquid tends to move downwards after entering the quick-freezing equipment 1 due to its low temperature. With the baffle 8 installed, the micro-freezing liquid is continuously pumped into the inlet section, causing the liquid level to rise. When the liquid level exceeds the baffle 8, the micro-freezing liquid in the inlet section overflows into the outlet section and is discharged through the outlet port. The newly added micro-freezing liquid passes over the catch on the shelf 6 and continues to move downwards. Convection is formed between the micro-freezing liquid that was originally at the bottom of the quick-freezing equipment 1 and the newly added micro-freezing liquid (due to the temperature difference), thereby further ensuring the relative uniformity of the temperature inside the quick-freezing equipment 1.

[0036] The circulation component 2 is the main component that enables the micro-freezing liquid to circulate. It mainly includes a refrigeration device and a liquid inlet pump. The refrigeration device includes an old liquid outlet and a cold liquid inlet. The liquid inlet pump is located between the refrigeration device and the quick-freezing device 1.

[0037] The control system also includes a fluid exchange component 3 for replacing the micro-freezing fluid. The fluid exchange component 3 is adapted to drain the old fluid from the circulation component 2 and introduce new fluid into the circulation component 2. After the micro-freezing fluid circulating in the quick-freezing equipment 1 comes into full contact with the surface of the catch, some fish meat tissue, fish scales, mucus, etc. will be mixed in. Therefore, the impurities in the fluid increase during circulation, so the fluid needs to be replaced after a certain period of circulation.

[0038] The preferred fluid exchange component 3 includes a three-way pipe, a storage container, and a fluid exchange pump. The fluid exchange pump is located between the refrigeration equipment and the storage container. Two passages of the three-way pipe connect to the used fluid outlet and the cold fluid inlet of the refrigeration equipment, and the other passage connects to the storage container. Each passage of the three-way pipe is equipped with a valve for opening and closing. The storage container is... Figure 1The container on the left is used to hold room-temperature micro-freezing liquid.

[0039] During normal operation, the T-connector and the old liquid outlet and cold liquid inlet of the refrigeration equipment are closed. At this time, the micro-freezing liquid circulation only occurs between the circulation component 2 and the quick-freezing equipment 1. When liquid replacement is required, the passage between the T-connector and the old liquid outlet, and the passage between the T-connector and the storage container are opened. The liquid replacement pump starts and draws the liquid from the circulation component 2 into the storage container. A filter device can be installed in the storage container at the location where the old liquid enters, so that the incoming old liquid is filtered for reuse. After emptying the old liquid in the circulation component 2, the connection between the old liquid outlet and the T-connector is closed, the connection between the storage container and the T-connector is maintained, and the connection between the cold liquid inlet and the T-connector is opened. At this time, the liquid inlet pump is turned on (at this time, the inside of the circulation component 2 is in a relatively closed state and can be regarded as a pipeline). New micro-freezing liquid is drawn from the storage container and enters the quick-freezing equipment 1 for circulation after passing through the refrigeration unit of the circulation component 2. Of course, during normal quick-freezing process, the micro-freezing liquid in the quick-freezing equipment 1 is generally replaced by the above methods in the circulation component 2. During liquid replacement, the micro-freezing liquid circulation inside the quick-freezing equipment 1 is suspended. Alternatively, the passage connecting the three-way pipe to the circulation component 2 can be directly connected to the quick-freezing equipment 1, so that the old liquid can be directly removed and the liquid replaced when not in operation.

[0040] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A micro-freezing liquid control system for a quick-freezing equipment for immersion-type fish catches, characterized in that, It includes a circulation component and a flow guiding component. The circulation component is used to cooperate with the quick-freezing equipment to form a micro-freezing liquid circulation, and the flow guiding component is adapted to divert and guide the micro-freezing liquid so that the micro-freezing liquid enters the quick-freezing equipment from different directions.

2. The micro-freezing liquid control system of the fish immersion quick-freezing equipment as described in claim 1, characterized in that, The flow guiding component includes multiple sets of liquid inlets and a liquid inlet network. The multiple sets of liquid inlets are located at different heights of the quick-freezing equipment. The circulation component diverts the micro-freezing liquid from the liquid inlet network into the multiple sets of liquid inlets, so that the micro-freezing liquid flows in in layers at different heights of the quick-freezing equipment.

3. The micro-freezing liquid control system of the fish immersion quick-freezing equipment as described in claim 2, characterized in that, The quick-freezing equipment includes a shelf corresponding to the liquid inlet, the height of the liquid inlet is greater than the height of the corresponding shelf, and the liquid inlet is inclined upwards.

4. The micro-freezing liquid control system of the fish immersion quick-freezing equipment as described in claim 2 or 3, characterized in that, It also includes a microbubble generator, which is adapted to generate bubbles inside the micro-freezing liquid entering the quick-freezing equipment.

5. The micro-freezing liquid control system of the fish immersion quick-freezing equipment as described in claim 4, characterized in that, The microbubble generator is an ultrasonic generator, which is located at the liquid inlet pipeline.

6. The micro-freezing liquid control system of the fish immersion quick-freezing equipment as described in claim 5, characterized in that, The circulation component includes a high-pressure pump for flowing the micro-freezing fluid into the quick-freezing equipment, the high-pressure pump being adapted to generate bubbles inside the micro-freezing fluid during operation.

7. The micro-freezing liquid control system of the fish immersion quick-freezing equipment as described in claim 1, characterized in that, The circulation component also includes a baffle plate disposed at the bottom of the quick-freezing equipment, the baffle plate dividing the inner cavity of the quick-freezing equipment into a liquid inlet section and a liquid outlet section, the bottom of the liquid outlet section being provided with a liquid outlet.

8. The micro-freezing liquid control system of the fish immersion quick-freezing equipment as described in claim 1, characterized in that, The circulation component includes a refrigeration device and a liquid inlet pump. The refrigeration device includes a used liquid outlet and a cold liquid inlet. The liquid inlet pump is located between the refrigeration device and the quick-freezing device.

9. The micro-freezing liquid control system of the fish immersion quick-freezing equipment as described in claim 8, characterized in that, It also includes a fluid exchange component for replacing the micro-freezing fluid, the fluid exchange component being adapted to drain the old fluid from the circulation component and to introduce new fluid into the circulation component.

10. The micro-freezing liquid control system of the fish immersion quick-freezing equipment as described in claim 9, characterized in that, The fluid exchange component includes a three-way pipe, a storage container, and a fluid exchange pump. The fluid exchange pump is located between the refrigeration equipment and the storage container. Two of the three-way pipes are connected to the circulation component, and the other is connected to the storage container.

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