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中央空调冷冻机多久改换一次?

来源:http://www.jnslshwx.com 日期:2019-05-20 发布人:admin
  运用中央空调很长时间之后,很多朋友都会发现冷冻机的油蜕变了。惹起中央空调冷冻机油蜕变的缘由有很多,冷冻机油蜕变需求及时改换。那么普通多久需求改换一次呢?改换指标又是什么?接下来,请大家跟随小编一同理解更多吧!
  After using central air conditioning for a long time, many friends will find that the oil of the refrigerator has changed. There are many reasons for the degeneration of refrigerant oil in central air-conditioning. The degeneration of refrigerant oil needs to be changed in time. So how often do you need to change? What are the indicators for change? Next, please follow Xiaobian to understand more!
  中央空调紧缩机冷冻机油多久改换一次-
  How often does the refrigerating oil of the central air conditioning compressor change?-
  作为冷水机组的“血液”,冷冻油主要起光滑、密封、冷却、清洁和降噪等作用,冷冻油在运用过程中由于高温作用,会受热合成产生积碳,招致紧缩机零部件磨损。油合成物会与制冷剂发作化学反响招致制冷效果降低,同时产生的酸性物质会对紧缩机形成激烈腐蚀。所以冷冻油在运用一定时间蜕变到达一定水平后,必需改换。
  As the "blood" of water chillers, refrigerated oil mainly plays the roles of smoothness, sealing, cooling, cleaning and noise reduction. During the operation of refrigerated oil, due to the high temperature effect, it will be heated and synthesized to produce carbon deposit, which will lead to the wear and tear of compressor parts. The chemical reaction between oil syntheses and refrigerants will lead to the decrease of refrigeration efficiency, and the acid substances produced will cause severe corrosion to the compressor. Therefore, the frozen oil must be changed after it has been transformed to a certain level in a certain period of time.
  中央空调紧缩机冷冻机油多久改换一次
  How often does the refrigerating oil of the central air conditioning compressor change?
  倡议:冷水机组次开机后,累计运转2500小时 (或3个月)后倡议改换一次光滑油并清洗油过滤器。因系统组装的残渣在正式运转后都会累积至紧缩机中。以后依照每8000小时(或2年)改换一次,或者依照表中办法改换。
  Initiative: After the first start-up of the chiller, after 2500 hours (or 3 months) of operation, it is proposed to replace the smooth oil and clean the oil filter. Because the residue of the system assembly will accumulate in the compressor after the system is officially operated. Later, it will be changed every 8000 hours (or 2 years) or according to the method in the table.
  冷冻油换油指标
  Refrigerated Oil Change Index
  普通判别冷冻油能否能继续运用的指标有:外观、粘度、酸值、水分、倾点、闪点、耐压强度、铜片腐蚀、机械杂质和不溶物等。
  Common criteria to judge whether the refrigerated oil can continue to be used include appearance, viscosity, acid value, water content, pour point, flash point, compressive strength, copper corrosion, mechanical impurities and insolubles.
  01外观冷冻油质质变化与否,应经过一定的化学和物理剖析得出。平常在运用过程中,也能够从油品的外观颜色直观地判别出油品的好坏状况。优质冷冻油应是无色透明的,运用一段时间后会变成淡黄色,随着运用时间的延长,油品的颜色会逐步变深,透明度变差。若冷冻油变成橘红色或红褐色,则应改换。
  Whether the quality of frozen oil changes or not should be obtained through certain chemical and physical analysis. Usually, in the process of operation, the appearance and color of oil products can also be directly distinguished from the quality of oil products. High quality refrigerated oil should be colorless and transparent. It will turn pale yellow after using for a period of time. With the extension of using time, the color of oil will gradually deepen and the transparency will become worse. If the frozen oil turns orange or reddish brown, it should be replaced.
  02粘度冷冻油的运动粘度值是反映油品光滑性能的主要指标,也是世界许多国度制定冷冻油牌号的根据。粘度太大不只无法保证油品的低温性能,不利于传热,而且会降低机器的功率;粘度太小则在磨擦部位不能构成应有的油膜,致使设备磨损增加,以至产生“拉缸”、“粘结”等毛病。
  The kinematic viscosity value of 02 viscosity refrigerated oil is the main index reflecting the smooth performance of oil products, and is also the basis for formulating refrigerated oil brands in many countries in the world. Too high viscosity not only can not guarantee the low temperature performance of oil products, is not conducive to heat transfer, but also reduces the power of the machine; too low viscosity can not constitute the proper oil film in the friction part, resulting in increased wear and tear of equipment, and even produce "cylinder pulling" and "bonding" problems.
  03酸值酸值是冷冻油的一项重要指标,其对应的实验办法为GB/T4945或GB/T7304。冷冻油中酸值的大小从一定水平上反映了油的精制深度和氧化的水平。
  The acid value of 03 is an important index of frozen oil. The corresponding experimental method is GB/T4945 or GB/T7304. The acid value of frozen oil reflects the refining depth and oxidation level of the oil to a certain extent.
  04水分在制冷循环系统中,即便只要少量水分存在,也会在低温节流安装部位产生冰塞现象和招致冷冻油过早的产生絮凝物。在高温时,水分还会降低油的稳定性。另一方面,封锁式冷冻油与电机线圈是直接接触的,水份的存在会使绝缘毁坏,以至发作电机击穿事故。
  In the refrigeration cycle system, even if only a small amount of water exists, ice jam will occur at the low temperature throttling installation site and flocculate will occur prematurely in the refrigerating oil. At high temperatures, water also reduces the stability of the oil. On the other hand, the blockade refrigerating oil is in direct contact with the motor coil. The presence of moisture will destroy the insulation and even cause motor breakdown accidents.
济南空调维修
  05倾点油品恰恰可以活动的低温度称之为油品的倾点。当制冷剂被紧缩经常有局部油雾随之进入管路中,即便经过油气别离器也不能将两者别离洁净,这就请求油品在冷冻系统中具有良好的低温活动性(低倾点),以免梗塞节流部位使冷水机组中止工作或附着于蒸发器换热管使传热效率降低。
  The lowest temperature at which the oil can move is called the pour point of the oil product. When refrigerant is compressed, local oil mist often enters the pipeline, even through the oil-gas separator, the two can not be separated and cleaned. This requires that the oil has good low temperature activity (low inclination point) in the refrigeration system, so as not to stop the chiller or attach to the heat exchanger tube of the evaporator to reduce the heat transfer efficiency.
  06闪点冷冻油的闪点是指在加热时产生的油蒸气与空气混合后,在接触火苗时发作闪火现象的低温度。假如冷冻油的闪点降低,就表示油内掺有轻质油品或有局部油曾经合成生成低沸点合成产物。普通而言,冷冻油的闪点高于紧缩机排出口温度15-30℃。
  06 Flash point of frozen oil refers to the lowest temperature at which flames occur when heated oil vapor mixes with air. If the flash point of frozen oil decreases, it means that light oil or local oil has been synthesized to produce low boiling point synthetic products. Generally speaking, the flash point of refrigerating oil is higher than that of the outlet temperature of the compressor at 15-30 C.
  07耐压强度耐压强度又称击穿电压或介电强度,是指将冷冻油放到装有一电极的容器中施加电压,当电压逐步增高到某一值时,油的电阻忽然降至为零,强大的电流以火花或电弧方式穿过油,此时的临界电压值称为介电强度。影响冷冻油击穿电压的主要要素有水分、杂质、温度等。
  07 withstanding voltage strength, also known as breakdown voltage or dielectric strength, refers to putting refrigerated oil into a container with an electrode to apply voltage. When the voltage gradually increases to a certain value, the resistance of the oil suddenly drops to zero. The strong current passes through the oil by spark or arc. At this time, the critical voltage value is called dielectric strength. The main factors affecting the breakdown voltage of refrigerated oil are water, impurities, temperature and so on.
  08铜片腐蚀铜片腐蚀实验是目前工业光滑油主要的腐蚀性测定法,它是在规则条件下,油品与相接触的金属外表产生腐蚀倾向的一项实验,油品抗腐蚀性的好坏在一定水平上能够反映油品的精制深度和蜕变水平。
  Corrosion test of 08 copper sheet is the most important method to determine the corrosion of industrial smooth oil at present. It is an experiment of corrosion tendency on the surface of oil and metal in contact under regular conditions. The corrosion resistance of oil can reflect the refining depth and transformation level of oil to a certain extent.
  09机械杂质和不溶物机械杂质是冷水机组紧缩机光滑管理的常规监测项目之一,由于油品中的机械杂质都会加速紧缩机的异常磨损,同时还会梗塞油路及过滤器,招致紧缩机产生光滑毛病。机械杂质是判别冷冻油能否需求换油的指标之一。通常,机械杂质在 0.005% 以下被以为是无机械杂质。超越 0.005% 的,则含有机械杂质,断定冷冻油不合格。
  09 Mechanical impurities and insoluble mechanical impurities are one of the routine monitoring items for smooth management of water chiller compactors. Because the mechanical impurities in oil products will accelerate abnormal wear of the compactor, and at the same time will obstruct the oil pipeline and filters, resulting in smooth defects of the compactor. Mechanical impurities are one of the indicators to judge whether refrigerated oil can be changed or not. Generally, mechanical impurities below 0.005% are considered to be inorganic. If more than 0.005%, it contains mechanical impurities and concludes that the refrigerated oil is not qualified.

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