CN106561787A - Auxiliary freshness retaining device of non-frozen fishery products - Google Patents

Abstract

The invention discloses an auxiliary fresh-keeping device for non-frozen fish products, which is used for assisting refrigerators to preserve fish products, and includes a controller, a transformer, a first electric board, and a second electric board; wherein, the controller is connected with the transformer, and the transformer The first output end of the transformer is connected to the first electric board, and the second output end of the transformer is connected to the second electric board; the first electric board is arranged on the left side of the refrigerator, and the second electric board is arranged on the left side of the refrigerator. On the right side: the first electric board and the second electric board are provided with evenly distributed through holes. In the present invention, by adjusting the voltage and current of the controller, an alternating electric field is generated between two electric plates, and a corresponding magnetic field is superimposed in a direction perpendicular to the electric field. With the gradual increase of the output voltage of the transformer, the two electric plates obtain a higher voltage, the electric field strength and the magnetic field strength also gradually increase, and the preservation effect is gradually improved. Fishery products are placed in the electric field for processing, and electromagnetic field-assisted preservation can be realized at low temperature without direct contact with the electric plate.

Description

Auxiliary fresh-keeping device for non-frozen fish products

technical field

The invention relates to a fresh-keeping device for fish products, in particular to an auxiliary fresh-keeping device for non-freezing fish products.

Background technique

Fish products have special muscle structure, rich nutrition, and high water content, but there are problems such as poor protein stability, less muscle matrix, high activity of degrading enzymes in the body, and high unsaturated fatty acids are easy to acidify. Fishery products are often kept fresh by refrigeration to inhibit the activity of their own enzymes and the reproduction of microorganisms. By installing the electric plate device in the refrigerator freezer, the equilibrium state in the molecular cluster can be destroyed after the applied electric field exerts a torque on the polar water molecule; The Larmor precession produced by the magnetic moment around the direction of the magnetic field limits the range of free movement of water molecules and their clusters to a certain extent, enabling water molecules to achieve microphase vibration, which can inhibit the cooling of water in fish products During the process, nucleation forms ice crystals to avoid the loss of cell juice due to the volume expansion of ice crystals, which will inevitably puncture the cells, resulting in the loss of nutrition, dry taste and serious dry consumption of fish products.

Fishing ships take crushed ice out to sea, and the fish are mixed with the crushed ice when they are put into the warehouse. The mechanical damage to the fish body is inevitable, and the microbial infection cannot be controlled; the empty load is large, and it is difficult to replenish at sea. All of these make the quality of fish products arriving at the shore not high, and no matter how advanced the preservation technology is, it is impossible to obtain high-quality products.

Contents of the invention

Aiming at the deficiencies in the prior art, the invention provides an auxiliary fresh-keeping device for non-frozen fish products.

In order to achieve the above object, the technical solution adopted in the present invention is: an auxiliary fresh-keeping device for non-frozen fish products, which is used to assist refrigerators to preserve fish products, including a controller, a transformer, a first electric board, and a second electric board; , the controller is connected to the transformer, the first output end of the transformer is connected to the first electric board, and the second output end of the transformer is connected to the second electric board; both the first electric board and the second electric board are opened with Uniformly distributed vias.

Further, the materials of the first electric board and the second electric board are both aluminum alloy materials.

Further, the output voltage adjustment range of the controller is 50V-220V.

Further, the electric field strength between the first electric plate and the second electric plate is 200-1200V/m, and the magnetic field strength is 1.2-4.5A/m.

The beneficial effects of the present invention are:

1. By adjusting the voltage and current of the controller, an alternating electric field is generated between the two electric plates, and a corresponding magnetic field is superimposed in the direction perpendicular to the electric field. With the gradual increase of the output voltage of the transformer, the two electric plates obtain a higher voltage, the electric field strength and the magnetic field strength also gradually increase, and the preservation effect is gradually improved. Fishery products are placed in the electric field for processing, and electromagnetic field-assisted preservation can be realized at low temperature without direct contact with the electric plate.

2. When the electric field reaches a certain intensity, it can ionize the air and generate a small amount of ozone, which can inhibit the growth and reproduction of microorganisms attached to the surface of fish products and delay the corruption of fish products.

3. When an electric field is applied under low temperature conditions, the equilibrium state of the water molecule clusters inside the fish product is affected by the weak vibration of the surrounding electrons, and the water molecules cannot freeze.

4. The intervention of magnetic field in the freezing process of fish products can have effects on the phase transition process such as delaying the supercooling degree of the cell phase transition process, shortening the phase transition process time, and reducing the size of ice crystals.

5. Since only two electric boards need to be installed in the refrigerator, and the output controller and transformer are placed outside the refrigerator, real-time monitoring and adjustment of voltage and current can be realized without occupying storage space.

6. Fishery products are not in direct contact with the electric board, which is beneficial to the maintenance of the electric board and prolongs the service life.

Description of drawings

Fig. 1 is the structural representation of auxiliary fresh-keeping device of the present invention;

Fig. 2 is the partial enlarged view of first electric board and the second electric board of the present invention;

In the figure, a controller 1, a transformer 2, a first electric board 3, a second electric board 4, and a refrigerator refrigerating chamber 5.

detailed description

The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 1, an auxiliary fresh-keeping device for non-frozen fish products of the present invention includes a controller 1, a transformer 2, a first electric board 3, and a second electric board 4; wherein, the controller 1 is connected to the transformer 2 , the first output end of the transformer 2 is connected to the first electric board 3, and the second output end of the transformer 2 is connected to the second electric board 4; the first electric board 3 is arranged on the left side in the refrigerator compartment 5, and the second The second electric board 4 is arranged on the right side in the refrigerating chamber 5 of the refrigerator; the first electric board 3 and the second electric board 4 are provided with evenly distributed through holes, which facilitates air circulation and makes the electric field environment tend to be uniform.

The output voltage adjustment range of the controller 1 is 50V-220V, the electric field strength between the first electric board 3 and the second electric board 4 is 200-1200V/m, and the magnetic field strength is 1.2-4.5A/m; The materials of the first electric board 3 and the second electric board 4 are both aluminum alloy materials. The controller 1 can be a product of the DENBA+ model of AGUA Trading Co., Ltd., but not limited thereto; the transformer 2 can be a product of the TDGC2-3 model of Chint Electric Co., Ltd., but not limited thereto.

The present invention is installed in the refrigerating room of household refrigerator, and fishery products such as small yellow croaker, silver pomfret, prawn are stored between the first electric board 3 and the second electric board 4, when the electric field intensity between two electric boards is controlled at 600～ 1200V/m, the magnetic field strength is controlled between 3.0 and 4.5A/m. After 4 days, all fish products are of good quality. The meat of small yellow croaker and silver pomfret is plump and elastic, and the prawns basically do not show browning. The sensory evaluation results are not significantly different from the initial storage Variations, perfectly edible.

The invention can be installed in household, commercial refrigerators, freezers, large-scale freezers or refrigerators, ISO containers, etc., and can be installed directly, with simple construction and low investment, and a smaller device can form an electric field in a larger range.

Claims (4)

1. An auxiliary fresh-keeping device for non-frozen fish products, used for auxiliary refrigerator preservation of fish products, is characterized in that it comprises a controller (1), a transformer (2), a first electric board (3), a second electric board ( 4) etc.; wherein, the controller (1) is connected to the transformer (2), the first output terminal of the transformer (2) is connected to the first electric board (3), and the second output terminal of the transformer (2) is connected to the first electric board (3). The two electric boards (4) are connected; uniformly distributed through holes are opened on the first electric board (3) and the second electric board (4). 2. The auxiliary fresh-keeping device for non-frozen fish products according to claim 1, characterized in that, the materials of the first electric board (3) and the second electric board (4) are both aluminum alloy materials. 3. The auxiliary fresh-keeping device for non-frozen fish products according to claim 2, characterized in that, the output voltage adjustment range of the controller (1) is 50V-220V. 4. The auxiliary fresh-keeping device for non-frozen fish products according to any one of claims 1-3, characterized in that the electric field strength between the first electric plate (3) and the second electric plate (4) is 200 ～1200V/m, the magnetic field strength is 1.2～4.5A/m.