Mushroom preservation system

Abstract

The utility model discloses a shiitake mushroom fresh-keeping system which comprises a refrigerating chamber and a low-temperature plasma generator and further comprises an inert gas supply device, and the inert gas supply device is communicated with the refrigerating chamber through a pipeline and used for introducing inert gas into the refrigerating chamber. And the refrigerating chamber is provided with an exhaust device. The low-temperature plasma generator is used for sterilizing, disinfecting and retaining freshness in the refrigerating chamber, and the inert gas supply device is used for replacing air in the refrigerating chamber, so that the refrigerating chamber is in an oxygen-free environment, and mushroom browning caused by mushroom oxidation is prevented.

Description

Technical Field

[0001] This utility model relates to the field of shiitake mushroom preservation technology, and in particular to a shiitake mushroom preservation system. Background Technology

[0002] The main reason for browning in shiitake mushrooms is the reaction between amino compounds and reducing sugars in the mushrooms under humid and hot conditions, producing brown polymers. This reaction is called browning, which is why shiitake mushrooms require different preservation methods than other vegetables.

[0003] In the prior art, Chinese patent document CN208579559U, published on March 5, 2019, discloses a horizontal freezer, including a cabinet, which includes a freezing inner liner located above the compressor chamber. The freezing inner liner defines a freezing compartment for storing frozen food. An insulation layer is provided between the upper wall of the compressor chamber and the bottom wall of the freezing inner liner. The horizontal freezer also includes a low-temperature plasma generator, a voltage booster, and a high-voltage electrostatic field generating plate disposed in the freezing compartment and electrically connected to the voltage booster. Its advantages are: the low-temperature plasma generator diffuses plasma into the freezing compartment, and the high-voltage electrostatic field generating plate generates high-voltage static electricity and releases it into the freezing compartment, working synergistically with the plasma to achieve a better preservation effect, making the color and nutrition of the food closer to fresh food; its disadvantage is that it is less suitable for preserving shiitake mushrooms. Utility Model Content

[0004] To address the existing technical problems, the main objective of this utility model is to provide a preservation system for keeping shiitake mushrooms fresh.

[0005] To overcome the problems existing in the prior art, the technical solution adopted by this utility model is: a shiitake mushroom preservation system, including a cold storage chamber and a low-temperature plasma generator, and also including an inert gas supply device, which is connected to the cold storage chamber through a pipe for introducing inert gas into the cold storage chamber; the cold storage chamber is equipped with an exhaust device.

[0006] It also includes a gas composition detector, which is used to detect the air composition inside the refrigerator compartment.

[0007] The inert gas supply device includes a nitrogen supply device and / or a carbon dioxide supply device. The nitrogen supply device is connected to the cold storage compartment via a first pipe, and a first valve is installed on the first pipe. The carbon dioxide supply device is connected to the cold storage compartment via a second pipe, and a second valve is installed on the second pipe.

[0008] The inert gas supply device also includes a gas release pipeline, which is installed at the bottom of the refrigerator compartment. The gas release pipeline is connected to one end of the first pipeline and the second pipeline located inside the refrigerator compartment, and the gas release pipeline is provided with multiple exhaust holes.

[0009] It also includes a moisture meter and a humidifier. The moisture meter is used to detect the moisture content in the refrigerator compartment, and the humidifier is used to humidify the refrigerator compartment when the humidity is below a threshold.

[0010] It also includes a circulating fan, which is installed inside the refrigerator compartment.

[0011] The exhaust device includes an exhaust pipe and a cover. The exhaust pipe is installed through the top of the refrigerator compartment. A hinge seat is provided at the upper end of the exhaust pipe. The cover is placed at the upper end of the exhaust pipe and is provided with an ear seat. The ear seat and the hinge seat are hinged by a pivot.

[0012] A sealing gasket is installed on the side of the cover that contacts the upper port of the exhaust pipe.

[0013] The present invention has the following beneficial effects:

[0014] 1. This invention uses a low-temperature plasma generator to sterilize and disinfect the cold storage compartment, and can remove harmful metabolites such as ethylene and oxidases that are detrimental to the storage and preservation of fruits and vegetables. It also induces the shrinkage of stomata in fruits and vegetables, reducing their respiration rate, thereby achieving the purpose of preservation. An inert gas supply device is used to replace the air in the cold storage compartment, creating an oxygen-free environment to prevent oxidation and browning of shiitake mushrooms. An exhaust device is used to expel air during the replacement of air in the cold storage compartment by the inert gas supply device.

[0015] 2. This utility model facilitates a more uniform release of inert gas by installing a gas release pipe at the bottom of the refrigerator compartment.

[0016] 3. In this utility model, when the inert gas supply device introduces inert gas into the refrigerator compartment, the pressure inside the refrigerator compartment increases, the air is pushed open and discharged, and when the pressure inside the refrigerator compartment is balanced, the cover is reset under the action of gravity, making it convenient to use. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle.

[0020] Figure 3 This is a schematic diagram of the gas release pipeline installed inside the refrigeration compartment of this utility model.

[0021] Figure label:

[0022] Refrigeration compartment 10, exhaust device 11, exhaust pipe 111, hinge seat 112, cover 113, ear seat 114, pivot 115, sealing gasket 116;

[0023] Gas composition detector 20;

[0024] Inert gas supply device 30, nitrogen supply device 31, carbon dioxide supply device 32, first pipeline 311, first valve 312, second pipeline 321, second valve 322, gas release pipeline 33;

[0025] Humidifier 40; Moisture meter 50; Low-temperature plasma generator 60; Circulating fan 70; Controller 80. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] Example 1:

[0028] See Figure 1-3 This utility model provides a mushroom preservation system, including a cold storage chamber 10 and a low-temperature plasma generator 60, and also includes an inert gas supply device 30. The inert gas supply device 30 is connected to the cold storage chamber 10 through a pipe and is used to introduce inert gas into the cold storage chamber 10; the cold storage chamber 10 is equipped with an exhaust device 11.

[0029] In this embodiment, the cold storage room 10 is a place or device that provides a cold storage environment. It adopts existing technologies, such as cold storage, cold storage warehouse and cold storage box. These places or devices can regulate the temperature inside the cold storage room 10 through refrigeration equipment.

[0030] This invention uses a low-temperature plasma generator 60 to sterilize and disinfect the cold storage compartment 10, and can remove harmful metabolites such as ethylene and oxidases that are detrimental to the storage and preservation of fruits and vegetables. It also induces the shrinkage of stomata in fruits and vegetables, reducing their respiration rate, thereby achieving the purpose of preservation. An inert gas supply device 30 is used to replace the air in the cold storage compartment 10, creating an oxygen-free environment to prevent oxidation and browning of the shiitake mushrooms. An exhaust device 11 is used to expel air when the inert gas supply device 30 replaces the air in the cold storage compartment 10.

[0031] The low-temperature plasma generator 60 is prior art, for example, the low-temperature plasma generator disclosed in CN208579559U.

[0032] See Figure 1 The inert gas supply device 30 includes a nitrogen supply device 31 and / or a carbon dioxide supply device 32. The gas supply port of the nitrogen supply device 31 is connected to the cold storage compartment 10 through a first pipe 311, and a first valve 312 is installed on the first pipe 311. The gas supply port of the carbon dioxide supply device 32 is connected to the cold storage compartment 10 through a second pipe 321, and a second valve 322 is installed on the second pipe 321.

[0033] In this embodiment, the nitrogen supply device 31 includes a nitrogen cylinder or a nitrogen generator.

[0034] In this embodiment, the carbon dioxide supply device 32 includes a carbon dioxide cylinder or a carbon dioxide generator.

[0035] Further, see Figure 3 The inert gas supply device 30 also includes a gas release pipe 33, which is installed at the bottom of the refrigerator compartment 10. The gas release pipe 33 is connected to one end of the first pipe 311 and the second pipe 321 located inside the refrigerator compartment 10. The gas release pipe 33 is provided with multiple exhaust holes. The gas release pipe 33 located at the bottom of the refrigerator compartment 10 facilitates a more uniform release of inert gas.

[0036] In this embodiment, see Figure 2 The exhaust device 11 includes an exhaust pipe 111 and a cover 113. The exhaust pipe 111 is installed through the top of the refrigerator compartment 10. A hinge seat 112 is provided at the upper end of the exhaust pipe 111. The cover 113 is placed at the upper end of the exhaust pipe 111 and is provided with an ear seat 114. The ear seat 114 and the hinge seat 112 are hinged by a pivot 115. When the inert gas supply device 30 introduces inert gas into the refrigerator compartment 10, the pressure inside the refrigerator compartment 10 increases, and the air pushes open the cover 113 and is discharged. When the pressure inside the refrigerator compartment 10 is balanced, the cover 113 returns to its original position under the action of gravity.

[0037] Furthermore, a sealing gasket 116 is installed on the side of the cover 113 that contacts the upper port of the exhaust pipe 111 to improve the sealing performance. The sealing gasket 116 can be a silicone gasket.

[0038] Example 2:

[0039] Based on Embodiment 1, the shiitake mushroom preservation system of this application further includes a gas composition detector 20, which is used to detect the air composition inside the cold storage compartment 10. This facilitates the activation or deactivation of the inert gas supply device 30 based on the detection data.

[0040] In this embodiment, the gas composition detector 20 is an indoor comprehensive environmental detector of model RS-MG111 from Shandong Renke Measurement and Control Technology Co., Ltd.

[0041] The gas composition detector 20 is installed inside the cold storage compartment 10 and is connected to the external main unit via a cable.

[0042] Example 3:

[0043] Based on Embodiment 1 or 2, the shiitake mushroom preservation system of this application further includes a moisture detector 50 and a humidifier 40. The moisture detector 50 is used to detect the moisture content in the refrigerator compartment 10, and the humidifier 40 is used to humidify the refrigerator compartment 10 when the humidity is below a threshold. When the moisture detector 50 detects that the moisture content in the refrigerator compartment 10, i.e., the humidity, is too high, the inert gas supply device 30 is turned on to send dry inert gas into the refrigerator compartment 10 for replacement; when the moisture detector 50 detects that the moisture content in the refrigerator compartment 10, i.e., the humidity, is too low, the humidifier 40 is turned on.

[0044] In this embodiment, the moisture detector 50 uses a temperature and humidity sensor manufactured by Shandong Renke Measurement and Control Technology Co., Ltd. The moisture detector 50 is installed inside the cold storage compartment 10 and connected to an external main unit via a cable.

[0045] Example 4:

[0046] Based on Embodiment 1, 2, or 3, the shiitake mushroom preservation system of this application further includes a circulating fan 70, which is installed inside the refrigerator compartment 10. Multiple circulating fans 70 can be installed at different heights and in different installation positions to evenly distribute the air within the refrigerator compartment 10.

[0047] The working steps or principle of this utility model are as follows:

[0048] In use, the refrigerator compartment 10 provides a preservation temperature. A low-temperature plasma generator 60 sterilizes and preserves the refrigerator compartment 10. A gas composition detector 20 detects the air composition within the refrigerator compartment 10. An inert gas supply device 30 replaces the air in the refrigerator compartment 10, creating an oxygen-free environment. While the inert gas supply device 30 is replacing the air in the refrigerator compartment 10, the air is exhausted through the exhaust device 11.

[0049] When the moisture detector 50 detects that the moisture content, i.e. the humidity, in the refrigerator compartment 10 is too high, the inert gas supply device 30 is turned on to send dry inert gas into the refrigerator compartment 10 for replacement; when the moisture detector 50 detects that the moisture content, i.e. the humidity, in the refrigerator compartment 10 is too low, the humidifier 40 is turned on.

[0050] After the inert gas replacement is completed, turn on the circulating fan 70 to evenly distribute the air in the refrigerator compartment 10.

[0051] Furthermore, the gas composition detector 20, humidifier 40, moisture detector 50, nitrogen supply device 31, carbon dioxide supply device 32, circulating fan 70, etc., can be electrically connected to the controller 80 for control, thereby realizing the automatic control of the above steps. The controller 80 can be a PLC.

Claims

1. A mushroom preservation system, comprising a cold storage chamber (10) and a low-temperature plasma generator (60), characterized in that: It also includes an inert gas supply device (30), which is connected to the cold storage compartment (10) via a pipe and is used to introduce inert gas into the cold storage compartment (10); the cold storage compartment (10) is equipped with an exhaust device (11).

2. The shiitake mushroom preservation system according to claim 1, characterized in that: It also includes a gas composition detector (20) for detecting the air composition in the cold storage compartment (10).

3. The shiitake mushroom preservation system according to claim 1, characterized in that: The inert gas supply device (30) includes a nitrogen supply device (31) and / or a carbon dioxide supply device (32). The gas supply port of the nitrogen supply device (31) is connected to the cold storage chamber (10) through a first pipe (311), and a first valve (312) is installed on the first pipe (311). The gas supply port of the carbon dioxide supply device (32) is connected to the cold storage chamber (10) through a second pipe (321), and a second valve (322) is installed on the second pipe (321).

4. The shiitake mushroom preservation system according to claim 3, characterized in that: The inert gas supply device (30) also includes a gas release pipe (33), which is installed at the bottom of the refrigerator compartment (10). The gas release pipe (33) is connected to one end of the first pipe (311) and the second pipe (321) located in the refrigerator compartment (10). The gas release pipe (33) is provided with multiple exhaust holes.

5. The shiitake mushroom preservation system according to claim 1, characterized in that: It also includes a moisture meter (50) and a humidifier (40), the moisture meter (50) being used to detect the moisture content in the refrigerator compartment (10) and the humidifier (40) being used to humidify the refrigerator compartment (10) when the humidity is below a threshold.

6. The shiitake mushroom preservation system according to claim 1, characterized in that: It also includes a circulating fan (70) installed inside the refrigerator compartment (10).

7. The shiitake mushroom preservation system according to claim 1, characterized in that: The exhaust device (11) includes an exhaust pipe (111) and a cover (113). The exhaust pipe (111) is installed through the top of the refrigerator compartment (10). A hinge seat (112) is provided at the upper end of the exhaust pipe (111). The cover (113) is placed at the upper end of the exhaust pipe (111) and the cover (113) is provided with an ear seat (114). The ear seat (114) and the hinge seat (112) are hinged by a pivot (115).

8. The shiitake mushroom preservation system according to claim 7, characterized in that: A sealing gasket (116) is installed on the side of the cover (113) that contacts the upper port of the exhaust pipe (111).

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