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在大型食品加工中心中，通常會設計很多溫度帶，并且這些溫度帶散布在廠區的各個角落。

In large food processing centers, many temperature zones are usually designed, and these temperatures are scattered around the factory floor.

食品冷庫在某項目設計中，園區總建設面積30000㎡，其中建設有快速冷卻間、快速凍結間、制冰間、儲冰間、加工操作車間、低溫穿堂、高低溫冷藏庫數十間，分布于不同的樓層，和不同的生產車間。

Food storage in a project design in the park, a total construction area of 30000 square meters, of which construction of rapid cooling, quick freezing, ice making, ice storage, processing workshop, low-temperature Chuantang, high and low temperature cold storage among dozens, distributed in different floors, and different production workshop.

如何科學的配置制冷系統成為了關鍵課題。經過反復的測算和研討，最終決定：快速冷卻間和快速凍結間由于溫度波動大，進出貨物時間不固定，采用獨立系統控制。

How to scientifically configure the refrigeration system has become a key issue. After repeated calculations and discussions, the final decision is made: the rapid cooling room and the rapid freezing room, due to temperature fluctuations, the goods out of time is not fixed, the use of independent system control.

其余車間采用，桶泵強制供液系統，分別作為低溫、高溫區域的供液系統。并且系統間安裝了過橋閥，可以相互借冷，滿足貨物吞吐量突然增加或者系統故障是的使用需求。

The other workshops use bucket pump forced liquid supply system, respectively as low temperature and high temperature supply system. And the system installed a bridge valve, you can borrow each other cold, to meet the sudden increase in cargo throughput or system failure is the use of demand.

在快速冷卻過程中，還有一個十分重要的因素——風速，而這個因素也往往是被人們所忽視的。

In the rapid cooling process, there is a very important factor wind speed, and this factor is often overlooked.

而在快速降溫的過程中，往往需要較大的空氣流速和較大的換熱溫差來滿足換熱需求，但是許多食品在大風速和大溫差的作用下，表面會萎縮，甚至變形，嚴重影響產品的商品價值。

In the process of rapid cooling, often require larger air velocity and large temperature difference of heat exchanger to meet the heat demand, but a lot of food in high wind speed and large temperature difference under the effect of surface will shrink, and even deformation, seriously affect the product value of the goods.

在這類產品的冷卻過程中，通常不能用冷風直吹產品表面，而是應該采用回風冷卻的形式，溫差也不宜過大，盡量控制在5~10℃左右(部分產品存在差異)，避免表面快速冷卻產生的形變。

In the cooling process of this type of products, products are usually not blowing straight surface with cold, but should be used in the form of air cooling, the temperature difference is not too large, as far as possible at 5~10 Deg. C (some products differences), avoid deformation of rapid cooling of the surface is generated.

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