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什么是真空预冷机

新闻来源:杭州日丰空气处理设备有限公司    发布日期:2019.10.19

真空预冷机是一种快速制冷设备,广泛用于蔬菜,水果,和熟食行业.它的工作原理是,利用水会随着气压的降低,沸点也会随着降低,发气压降到615PA时候,水就会沸腾.沸腾就伴随着吸收热量这一物量现像,从而带走产品表面的热量.达到快速降温的效果.真空预冷机是目当最为高效和经济的一种快速降温的方式,在25分钟内可以将温降至2-5度内,这种高效率制冷,可以最大程度的保持水果,蔬菜和熟食的原始色泽和口感.并且能够延长产品的货架期.正是因为这种优势,现在越来越为广大菜农,果农青睐应用领域:2.应用领域:A, 蔬菜(所有带叶的蔬菜/花菜/蘑菇/玉米等)B,鲜花C,水果(草梅等.)需要注意的是:现在有些市场的业务员在推销产品的时间,将真空预冷机说的神乎其神,像是万能的,其实它的作用也是有限的,不是所有的蔬菜都适用.比如一些长得比较厚实的瓜果,如西瓜,茄子,黄瓜等等,这些都是不行的真空预冷机特点1). 冷却速度快:20-30分钟即可达到所需的冷藏温度。2). 冷却均匀:产品表面自由水汽化带走自身热量达到冷却目的,实现从内到外均匀降温。3). 干净卫生:真空坏境下,可杀菌或抑制细菌繁殖,防止交叉污染。4_. 薄层干燥效应:有治愈保鲜物表皮损伤或抑制扩大等独特功效。5). 不受包装限制:只要包装有气孔,即可均匀冷却物品。6). 保鲜度高:可保有食物原有色、香、味,延长货架期。7). 自动化程度高:可通过压力传感器控制制冷系统和真空系统压力,方便调节真空预冷机的真空度,并且可远程操控,便于监控设备运行和快速解决设备故障。8). 高度精准:配备精密式数显温度、湿度控制器,精确控制真空度及湿度。9). 安全稳定:电气部分采用著名品牌产品,保证机器工作稳定寿命长久,操作安全。4. 真空预冷机和冷库的区别?经常会有种户问我这个问题,最基本的区别在于:真空预冷机不是储存设备,它只是一种制冷设备,当然冷库也有制冷的作用,但是冷库制冷效率是非常低的,可能需要12个小时以上,这样住住导至产品在冷库打冷,再装冷链车销售的时候,发现蔬菜已经腐烂了很多,而且不新鲜.但是蔬菜经过真空预冷后,时间只要25分钟就可以,所以可以一边真空预冷,一边直接装进冷链车销售其它地区.如果预冷后,再放进冷库储存,短期内也不会出现腐烂.大大的延长了货架期.5. 真空预冷机值不值得买呢?这个需要看您的产品和产量,和销售模式. 但我觉得对于大部分种植户,都是值得购买的.从长远来看,是相当划算,使用真空预冷机,能为您节约成本.主要体现在以下几点:冷却效率高,可以提高工作效率.减少甚至杜绝产品的腐烂率,变黄率,从而损少您的损失 延长您产品几倍的上架期使用范围广,不管今年是种植生菜,还是明年改种玉米,都可以用可以替代现有的冷库功能.或有了真空预冷机,可以不再需要太大的冷库.
Vacuum precooler is a kind of fast refrigeration equipment, widely used in vegetable, fruit, and cooked food industry. The way it works is that as the pressure goes down, the boiling point goes down, and when the pressure goes down to 615PA, the water boils. Boiling occurs with the amount of heat absorbed, thus taking away heat from the surface of the product. Achieve the effect of rapid cooling. Vacuum precooling machine is the most efficient and economical way to cool the temperature quickly, which can be lowered to 2-5 degrees in 25 minutes. This kind of high efficiency refrigeration can maintain the original color and taste of fruits, vegetables and cooked food to the greatest extent. And can extend the shelf life of products. Just because of this advantage, now more and more for the majority of farmers, growers favored areas of application: 2. Areas of application: A, vegetables (all leafy vegetables/cauliflower/mushroom/corn, etc.) B, C, flowers fruit (plum, etc.) need to be aware that time now some market salesman in promoting the sale of products, the vacuum precooling machine said, fantastic like everything, but its role is limited, not all of your vegetables. For example, some fruits grow thicker, such as watermelon, eggplant, cucumber and so on, these are not good vacuum precooling machine features 1). Cooling speed: 20-30 minutes can reach the required temperature of refrigeration. 2) uniform cooling: free water on the surface of the product vaporizes to take away its own heat to achieve the purpose of cooling, and achieve uniform cooling from inside to outside. 3) clean and hygienic: under vacuum environment, it can sterilize or inhibit bacterial reproduction and prevent cross-contamination. 4_. Thin layer drying effect: it can cure the skin damage or inhibit the expansion of preservation. 5) unrestricted by packaging: as long as the packaging has air holes, the product can be evenly cooled. 6) high freshness keeping degree: it can keep the original color, aroma and taste of food and extend the shelf life. 7) high degree of automation: the pressure sensor can be used to control the pressure of the refrigeration system and the vacuum system, which is convenient to adjust the vacuum degree of the vacuum precooling machine. It can also be controlled remotely, which is convenient to monitor the operation of the equipment and quickly solve equipment faults. 8) high accuracy: equipped with precise digital display temperature and humidity controller, which can accurately control vacuum degree and humidity. 9) safety and stability: the electrical part adopts famous brand products to ensure stable operation and long life of the machine and safe operation. 4. The difference between a vacuum precooler and a freezer? Often have asked me this question, the most fundamental difference is that: vacuum precooling machine is not a storage device, it is a kind of refrigeration equipment, cold storage, of course, also have the effect of the refrigeration, cold storage refrigeration efficiency is very low, however, may require more than 12 hours, so stay guide to product cold in a refrigerator, put in cold chain of car sales, find vegetables had rotted a lot, and not fresh. However, after the vegetables are pre-cooled by vacuum, the time is only 25 minutes, so they can be pre-cooled by vacuum while being directly loaded into the cold chain truck for sale in other regions. If pre-cooled, and then put into the freezer storage, a short period of time will not appear rotten. Greatly extended shelf life. 5. Is a vacuum precooler worth buying? This depends on your product and volume, and sales model. But I think for most farmers, it's worth buying. In the long run, it is quite cost-effective to use the vacuum precooling machine, can save your cost. Mainly reflected in the following: high cooling efficiency, can improve the work efficiency. Reduce or even eliminate the rotting rate and yellowing rate of products, so as to reduce the loss, extend the shelf life of your products by several times, a wide range of use, whether growing lettuce this year or switching to corn next year, can be used to replace the existing cold storage function. Or with a vacuum precooler, you can no longer need too much cold storage.
 


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