Automatic low-temperature storage area-Wuhan Biobank Co., Ltd.

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Automatic low-temperature storage area

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The area is 400 m2, equipped with a large automatic ultra-low temperature storage device, including - 80 ℃ and - 140 ℃ storage temperature zones (Figure 3). The equipment operation has the following advantages:
(1) Efficient access: compared with the storage mode of traditional refrigerators, the automatic ultra-low temperature/deep low temperature storage equipment can greatly reduce the labor cost, and achieve the scheduled delivery/warehousing of samples without taking up labor.
(2) Energy-saving operation: based on the principle of cooling air sinking, the sample storage location is located at the lower layer, and the top layer is a mechanical arm structure, which will not bring too much impact on the temperature of the storage area in the process of extracting samples from the warehouse.

Figure 3 Temperature zone distribution of automatic low-temperature storage

(3) Multi-consumable materials: the equipment can match a variety of common frozen storage tubes on the market, providing support for the diversification of sample sources of third-party sample libraries. According to the planned configuration scheme, 9.2 million samples are stored in the temperature zone of - 80 ℃ and 1.3 million samples are stored in the temperature zone of - 140 ℃. Among them, 8.3 million tubes are stored in the frozen storage tube of SBS specification, and 2.92 million tubes can be stored in the conventional frozen storage box, with a total of 10.5 million tubes (see Table 2 for the configuration details).
(4) Multiple insurance: the equipment adopts a triple ultra-low temperature refrigeration system, namely a set of main refrigeration system, a set of standby refrigeration system, and a set of liquid nitrogen standby refrigeration system, to ensure the quality and safety of the sample temperature- The refrigeration system in the temperature zone of 80 ℃ is two for standby and three for use, and the refrigeration system in the temperature zone of - 140 ℃ is two for standby and one for use; In case of power failure, liquid nitrogen refrigeration can also be used.

Table 2 Distribution of frozen storage pipes in automatic ultra-low temperature storage equipment

存储温区	存储规格	冻存盒参数	板架高度（mm）	板架数量	板架层数	冻存盒数量	冻存管数量	总计
-80℃温区	常规冻存盒	133´133´53mm （绿色区域）	53	526	33	17,358	1,735,800	9,208,692
		133´133´78mm （黄色区域）	78	42	23	966	96,600
		133´133´125mm （天蓝色区域）	125	63	15	945	94,500
	SBS冻存盒	0.75ml （蓝色区域）	35	1161	47	54,567	5,238,432
		1.4ml （红色区域）	53	387	33	12,771	1,226,016
		预留（紫色区域）	52	258	33	8,514	817,344
-140℃温区	常规冻存盒	133´133´53mm （绿色区域）	53	80	29	2,320	232,000	1,289,408
		133´133´125mm （天蓝色区域）	125	16	13	208	20,800
	SBS冻存盒	0.75ml （蓝色区域）	35	185	42	7,770	745,920
		1.4ml （红色区域）	53	62	29	1,798	172,608
		预留（紫色区域）	52	41	30	1,230	118,080
存储总量								10,498,100