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A constant temperature and humidity three-dimensional library

A constant temperature and humidity, three-dimensional storage technology, applied in the field of cold storage, can solve problems such as bulging and deformation of the storage board, affecting the appearance and service life of the cold storage, fluctuating energy consumption of the cold storage, etc.

Active Publication Date: 2021-09-14
JINGKELUN REFRIGERATION EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

where NH 3 As a refrigerant with excellent performance, it was widely used in large-scale industrial refrigeration systems in the early years, such as large and medium-sized cold storage, but it is toxic, flammable and explosive, and NH has occurred many times in recent years. 3 Explosion or fire caused severe accidents causing casualties, so the national safety supervision department 3 Cold storage increases supervision and clarifies NH 3 The charge of more than 8 tons is a major hazard, which limits its application in large and medium-sized cold storage, and people from NH in recent years 3 Lessons learned from cold storage accident also have implications for NH 3 The use of HCs is becoming more and more cautious; although HCs are non-toxic, they are flammable and explosive. This dangerous feature also limits their application in large and medium-sized industrial and commercial refrigeration systems. Now they are mostly used in small refrigeration equipment, such as Gree and Haier. Launched R290 air conditioner and refrigerator; currently, CO 2 As a colorless, odorless, non-toxic, and flame-retardant natural working fluid, it has become the focus of researchers from all over the world. At present, CO 2 Most applications in refrigeration systems are CO 2 with NH 3 Or the cascade and cooling system formed by Freon, but these systems only weakened and failed to eradicate NH 3 and the influence of freon
Another option on the market is the CO 2 The two-stage compression system is used to obtain a low temperature environment. The condensation method is mostly air-cooled or evaporative cooling. The system is complex and the efficiency is low. It is rarely used in practical applications. Therefore, a simple and efficient single CO 2 Refrigeration system becomes the industry's first choice
[0006] Most of the existing cold storage panels are of vertical structure, and the strip-shaped cold storage panels are fixedly connected to the horizontal purlins through mushroom nails. Since the cold storage panels play the role of heat insulation and heat preservation, affected by the temperature throughout the year, the temperature difference between thermal expansion and contraction Under the action, the following two serious results often appear after several years of use: 1. There are gaps at the joints of the warehouse board and the warehouse board, which affects the fluctuation of the storage temperature and the energy consumption of the cold storage; 2. The gaps appear at the mushroom nails, and the external water vapor When it enters the storage board, it condenses and expands, causing the storage board to bulge, deform or even crack, affecting the appearance and service life of the cold storage

Method used

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  • A constant temperature and humidity three-dimensional library
  • A constant temperature and humidity three-dimensional library
  • A constant temperature and humidity three-dimensional library

Examples

Experimental program
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Effect test

Embodiment 1

[0041] see figure 1 As shown, the present embodiment provides a constant temperature and humidity three-dimensional warehouse. The three-dimensional warehouse includes a cargo access passage 11, a raft foundation 9, a warehouse structure and a refrigeration system. The warehouse structure is arranged on the raft foundation 9, and the warehouse structure Including the storage body, the structural column 8, the structural column 8 and the storage body are an integrated structure, the storage body includes the storage board 13, the hexahedron of the three-dimensional storage is provided with a complete and continuous heat preservation structure 10, and the cargo entry and exit passage 11 is provided with double-channel interlocking Door 12; the refrigeration system is a carbon dioxide refrigeration system capable of continuous cooling. The carbon dioxide refrigeration system includes a compressor 1, a condenser 4, a liquid receiver 2, an expansion valve 3 and an evaporator 5 conne...

Embodiment 2

[0055] see Figure 8 As shown, the difference between this embodiment and Embodiment 1 is the refrigeration system. The refrigeration system of this embodiment is a ground-source carbon dioxide refrigeration system, including a compressor 1, an evaporator 5, a ground-source condenser 41 and a storage tank connected in sequence. The liquid device 2, the ground source condenser 41 is arranged below the permafrost layer, utilizes the characteristics that the underground normal temperature is not higher than the critical temperature of carbon dioxide liquefaction (31.1 degrees Celsius), conducts the heat of the condenser to below the ground, not only solves the problem that the condenser Exceeding the critical temperature of carbon dioxide liquefaction (31.1 degrees Celsius) will cause the problem that the carbon dioxide refrigerant cannot be liquefied, and the efficiency is greatly improved. The high-pressure refrigerant carbon dioxide gas enters the condenser installed undergrou...

Embodiment 3

[0058] The difference between this embodiment and embodiment 1 is the refrigeration system, see Figure 9 and Figure 10 As shown, the refrigeration system of this embodiment includes a compressor 1, an evaporator 5, a liquid receiver 2, and a flash condenser 42 connected in sequence, see Figure 10 As shown, a Venturi tube 20 is arranged between the compressor 1 and the flash condenser 42, and the throat interface of the Venturi tube 20 is connected to the liquid reservoir 2; between the liquid reservoir 2 and the flash condenser 42 A differential pressure valve 23 is provided, and the gas-liquid mixture of carbon dioxide flowing out of the flash condenser 42 enters the liquid storage tank 2 through the differential pressure valve 23 . The condensing pressure in the flash condenser 42 needs to be kept in an appropriate range (usually lower than 120Kg / cm 2 , higher than the evaporation pressure 30 ~ 40Kg / cm 2 ), the condensing pressure is too high, which will affect the saf...

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Abstract

The invention relates to a constant temperature and humidity three-dimensional storehouse. The three-dimensional storehouse includes a cargo access channel, a raft foundation, a storehouse structure and a refrigeration system. The structural column and the storehouse body are an integrated structure. A continuous thermal insulation structure, the cargo access passage is provided with double-channel interlocking doors; the storage body includes a storage board, and the storage board is installed on the vertical purlins horizontally, and the connecting slides are connected with the Vertical purlin connection. Its beneficial effects are: adopting the integrated structure of raft foundation and warehouse rack, the storage capacity rate of the entire cold storage is improved, and it is convenient for automation, standardization and standardized operation; in the case of thermal expansion and contraction, the connecting slides can Slide up to avoid expansion of the library board, or leakage of cold from the board seam. After connecting the sliding piece and the vertical purlin, there is room for fine-tuning, which solves the problem of bulging and deformation caused by the cold expansion and contraction of the warehouse board in the traditional installation process.

Description

technical field [0001] The invention relates to the field of cold storage, in particular to a three-dimensional storage with constant temperature and humidity. Background technique [0002] With the rapid development of cold chain logistics in recent years, the function of cold storage is no longer limited to traditional low-temperature storage, but has evolved into multiple roles such as inventory center, logistics distribution center, value-added service center, and advanced cold chain logistics technology application center. , so as to meet the needs of the upstream and downstream links of the cold storage for smooth logistics, convenient access to goods, and traceable information. Therefore, the requirements for the automation of future cold storage are getting higher and higher, and its form is gradually developing from multi-storey civil storage to elevated three-dimensional storage. [0003] However, since the traditional three-dimensional cold storage is mostly an a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D13/00F25D19/00F25D23/06F25D23/02F25B43/00F25B49/02
CPCF25B43/006F25B49/02F25D13/00F25D19/003F25D23/028F25D23/06
Inventor 杨建国周成君谢伟波康建慧王全江张继龙曹文婕赵辉郝立煊毛同芹
Owner JINGKELUN REFRIGERATION EQUIP CO LTD