Tea low-temperature fresh-keeping warehousing system

Abstract

The invention belongs to the technical field of tea leaf preservation, and provides a tea leaf low-temperature preservation warehousing system which is characterized by comprising a warehouse body module, a refrigeration module, a humidity regulation and control module, a gas regulation and control module and a central control module. Through the innovative design of low-oxygen constant-humidity accurate temperature control and intelligent early warning, the four major pain points of oxidative deterioration, odor tainting and moisture absorption, high energy consumption and difficult quality control in traditional tea leaf storage are thoroughly solved, the shelf life of high-quality tea leaves is prolonged, the industrial economic benefits are directly improved, and high-end development of Chinese tea brands is assisted.

Description

Technical Field

[0001] The present invention relates to the technical field of tea preservation, and in particular to a low-temperature tea preservation storage system. Background Art

[0002] During storage, tea is easily affected by factors such as temperature, humidity, oxygen, and microorganisms, which can lead to aroma volatilization, color deterioration, and loss of nutrients. Traditional storage methods have the following drawbacks:

[0003] Ordinary cold storage: only controls the low temperature (usually 2-5°C), but ignores the control of humidity and gas composition. High humidity can easily cause mildew, and oxygen can cause oxidation.

[0004] Household refrigerators: Large temperature fluctuations, high risk of odor transfer, and inability to scale storage;

[0005] Controlled atmosphere storage: Existing technologies are mostly designed for fruits and vegetables. The oxygen concentration (usually 3% to 5%) and humidity range (80% to 90%) are not suitable for tea, which can easily cause moisture absorption and deterioration.

[0006] Therefore, there is an urgent need for a dedicated tea preservation and storage system that integrates low temperature, precise humidity control, low oxygen conditioning and intelligent monitoring to extend the shelf life of tea and maintain its quality. Summary of the Invention

[0007] The purpose of the present invention is to overcome the problem in the prior art that tea storage is easily affected by factors such as temperature, humidity, oxygen and microorganisms, and to provide a special tea preservation storage system with low temperature, precise humidity control, low oxygen conditioning and intelligent monitoring.

[0008] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0009] The present invention provides a low-temperature tea fresh-keeping storage system, comprising:

[0010] Warehouse module, including insulation walls, sealed doors and internal shelf structure;

[0011] The refrigeration module, including the compressor, evaporator and condenser, is used to maintain the temperature in the warehouse at 0-8°C;

[0012] Humidity control module, including humidifier, dehumidifier and humidity sensor, is used to maintain the relative humidity in the warehouse at 45% to 65%;

[0013] Gas control module, including nitrogen generator, carbon dioxide removal device and gas concentration sensor, used to maintain oxygen concentration ≤ 3% and carbon dioxide concentration ≤ 0.5%;

[0014] The central control module is connected to various sensors and actuators to automatically adjust temperature, humidity and gas composition based on preset parameters.

[0015] Preferably, the refrigeration module adopts a variable frequency compressor and is equipped with a multi-temperature zone independent control unit, allowing differentiated temperatures to be set for different shelf partitions.

[0016] Preferably, the gas control module further comprises an ethylene adsorption device for adsorbing ethylene gas released by tea leaves.

[0017] Preferably, the shelf structure is a movable three-dimensional shelf equipped with RFID tags and an in-warehouse positioning system.

[0018] Preferably, the central control module supports remote monitoring and early warning functions, and transmits temperature, humidity and gas data to the user terminal in real time through the Internet of Things platform.

[0019] Beneficial effects:

[0020] 1. Delaying quality deterioration: Through the triple synergy of low temperature + precise humidity control + ultra-low oxygen regulation, the activity of tea oxidase and microbial reproduction are significantly inhibited:

[0021] The chlorophyll retention rate is improved to maintain the emerald green color of the tea leaves; the oxidation rate of tea polyphenols is reduced to prevent the tea soup from browning; the loss rate of volatile aroma components is low, retaining characteristic flavors such as orchid and chestnut fragrance.

[0022] 2. Targeted adsorption of ethylene: Built-in activated carbon-molecular sieve composite filter element can efficiently adsorb ethylene gas released by tea leaves, block the ripening effect of ethylene, and extend the shelf life.

[0023] 3. Through the innovative design of "low oxygen constant humidity precise temperature control + intelligent early warning", this invention completely solves the four major pain points in traditional tea storage: oxidation and deterioration, flavor transfer and moisture absorption, high energy consumption, and difficult quality control. It extends the shelf life of high-quality tea, directly improves the economic benefits of the industry, and promotes the high-end development of Chinese tea brands. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The figure is a flowchart of a low-temperature tea fresh-keeping storage system in Example 1. DETAILED DESCRIPTION

[0025] The present invention provides a low-temperature tea fresh-keeping storage system, comprising:

[0026] Warehouse module, including insulation walls, sealed doors and internal shelf structure;

[0027] The refrigeration module, including the compressor, evaporator and condenser, is used to maintain the temperature in the warehouse at 0-8°C;

[0028] Humidity control module, including humidifier, dehumidifier and humidity sensor, is used to maintain the relative humidity in the warehouse at 45% to 65%;

[0029] Gas control module, including nitrogen generator, carbon dioxide removal device and gas concentration sensor, used to maintain oxygen concentration ≤ 3% and carbon dioxide concentration ≤ 0.5%;

[0030] The central control module is connected to various sensors and actuators to automatically adjust temperature, humidity and gas composition based on preset parameters.

[0031] In the present invention, the refrigeration module adopts a variable frequency compressor and is equipped with a multi-temperature zone independent control unit, allowing different shelf partitions to set differentiated temperatures.

[0032] In the present invention, the gas control module further comprises an ethylene adsorption device for adsorbing ethylene gas released by tea leaves.

[0033] In the present invention, the shelf structure is a movable three-dimensional shelf equipped with RFID tags and an in-warehouse positioning system.

[0034] In the present invention, the central control module supports remote monitoring and early warning functions, and transmits temperature, humidity and gas data to the user terminal in real time through the Internet of Things platform.

[0035] The technical solutions provided by the present invention are described in detail below with reference to the embodiments, but they should not be construed as limiting the scope of protection of the present invention.

[0036] Example 1:

[0037] Figure 1 A tea low-temperature fresh-keeping storage system according to the first embodiment of the present invention comprises the following steps:

[0038] Warehouse module, including insulation walls, sealed doors and internal shelf structure;

[0039] The refrigeration module, including the compressor, evaporator and condenser, is used to maintain the temperature in the warehouse at 0-8°C;

[0040] Humidity control module, including humidifier, dehumidifier and humidity sensor, is used to maintain the relative humidity in the warehouse at 45% to 65%;

[0041] Gas control module, including nitrogen generator, carbon dioxide removal device and gas concentration sensor, used to maintain oxygen concentration ≤ 3% and carbon dioxide concentration ≤ 0.5%;

[0042] The central control module is connected to various sensors and actuators to automatically adjust temperature, humidity and gas composition based on preset parameters.

[0043] Specifically, the refrigeration module uses a variable frequency compressor and is equipped with a multi-temperature zone independent control unit, allowing differentiated temperatures to be set for different shelf partitions.

[0044] Specifically, the gas control module further includes an ethylene adsorption device for adsorbing ethylene gas released by tea leaves.

[0045] Specifically, the shelf structure is a movable three-dimensional shelf equipped with RFID tags and an in-warehouse positioning system.

[0046] Specifically, the central control module supports remote monitoring and early warning functions, and transmits temperature, humidity and gas data to the user terminal in real time through the Internet of Things platform.

[0047] As can be seen from the above embodiments, the present invention provides a low-temperature fresh-keeping storage system for tea, comprising the following steps: a storage module comprising an insulated wall, a sealed door, and an internal shelf structure; a refrigeration module comprising a compressor, an evaporator, and a condenser for maintaining the temperature within the storage at 0-8°C; a humidity control module comprising a humidifier, a dehumidifier, and a humidity sensor for maintaining the relative humidity within the storage at 45%-65%; a gas control module comprising a nitrogen generator, a carbon dioxide removal device, and a gas concentration sensor for maintaining the oxygen concentration ≤3% and the carbon dioxide concentration ≤0.5%; and a central control module connected to each sensor and execution device to automatically adjust the temperature, humidity, and gas composition based on preset parameters. Through the innovative design of "low-oxygen constant-humidity precise temperature control + intelligent early warning," the present invention completely solves the four major pain points of traditional tea storage: oxidation and deterioration, flavor transfer and moisture absorption, high energy consumption, and difficult quality control. This extends the shelf life of high-quality tea, directly improves the economic benefits of the industry, and contributes to the high-end development of Chinese tea brands.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A tea low-temperature fresh-keeping storage system, characterized in that: include: Warehouse module, including insulation walls, sealed doors and internal shelf structure; The refrigeration module, including the compressor, evaporator and condenser, is used to maintain the temperature in the warehouse at 0-8°C; Humidity control module, including humidifier, dehumidifier and humidity sensor, is used to maintain the relative humidity in the warehouse at 45% to 65%; Gas control module, including nitrogen generator, carbon dioxide removal device and gas concentration sensor, used to maintain oxygen concentration ≤ 3% and carbon dioxide concentration ≤ 0.5%; The central control module is connected to various sensors and actuators to automatically adjust temperature, humidity and gas composition based on preset parameters.

2. The system according to claim 1, wherein: The refrigeration module uses a variable frequency compressor and is equipped with a multi-temperature zone independent control unit, allowing differentiated temperatures to be set for different shelf partitions.

3. The system according to claim 1, wherein: The gas control module also includes an ethylene adsorption device for adsorbing ethylene gas released by tea leaves.

4. The system according to claim 1, wherein: The shelf structure is a movable three-dimensional shelf equipped with RFID tags and an in-warehouse positioning system.

5. The system according to claim 1, wherein: The central control module supports remote monitoring and early warning functions, and transmits temperature, humidity and gas data to the user terminal in real time through the Internet of Things platform.

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