乾會較爽.
灌冷媒前的重要抽真空動作,有保養廠做但是原理和操作對嗎?
你可以去問一下保養廠的技師,抽真空的用意.
現在上給你惡補一下. 真空狀態下氣體的成分：
1. 氣體的組成會隨著真空度而變。例如：
一大氣壓下氮氣佔有78﹪，在低壓下可能只佔 10﹪，甚至更低。
一大氣壓下水蒸氣只佔有1.57﹪，在10-3 torr的壓力下，水蒸氣可
能佔有 75~95﹪，但在超高真空時，則僅佔有幾個﹪
所以答案出來了就是抽走水分或水分子.
冷凍油加多少,台灣沒幾個師傅懂,讓原廠教育手冊算給你看.
6.8 Oil Chargernrn‧ Oil Circulation Ratio (OCR) should be between 3.3% and 8% ratio of oil to refrigerantrnby weight.rnrn
冷凍油加的量就是介於3.3--8百分比間,根據你冷媒加的量
6.8.1 Oil Flow Theoryrnrnrn‧ Compressor lubrication occurs as the oil which circulates with the refrigerant passesrnthrough the compressor crankcase during operation. The Sanden SD series compressor achieves optimal durability and cooling performance when oil circulatesrnthrough the system at a ratio of 3.3% to 8% oil to refrigerant. Excess oil can act as an insulator limiting heat transfer in the evaporator and condenser, while too little oil can negatively affect durability.rn‧ Oil will collect in low pressure cool components (evaporator, accumulator and suction hose) of the refrigerant loop. For example a long suction hose which sags can collect several ounces thus reducing overall oil circulation ratio.
6.8.1冷凍油,油路行程理論
冷氣壓縮機潤滑發生於，當冷煤流通經過正在動作的壓縮機齒軸箱。rn當冷凍油流通時， Sanden SD系列壓縮機完成優異的耐久性和冷卻的表現.rn冷氣系統循環要為持3.3%到8% 冷凍油比冷煤的比例。 額外用油在蒸發器和冷凝器的可能作為?緣體限制熱傳遞，而太油會影響耐久性。rn冷凍油收集在低壓冷的零件內(evaporator, accumulator and suction hose)在冷氣系統內。 例如:一個長又下垂的冷氣管路會讓冷凍油聚集在下垂處,因而減少整體油動油循環比率的幾盎司。
6.8.2 Oil Chargingrnrn6.8.2.1 Passenger Car, Light Duty Truck Single EvaporatorrnrnRefrigerant charges 24oz (680g) to 40oz (1133g)rnrnrn‧ 135cc oil TXV systemsrn‧ 240 cc oil in orifice tube systemsrnrn6.8.2.2 Dual Evaporator Long Hose SystemsrnrnLess than 56oz or 1600g of refrigerant chargernrnrn1. The desired oil charge for the systems with unusually long hoses, such as trucks, tractors,rnetc., can be determined based on the total refrigerant charge when less than 56 oz. (1600g)rnrefrigerant is used.rnrn2. Calculate the desired oil charge as below:rnrnOil amount (oz.) = [(Refrigerant charge in oz. x 0.06) + 2.2] ÷ 0.9.rnOil amount (cc) = [(Refrigerant charge in grams x 0.06) + 66] ÷ 0.9.rnrnNote: For systems with very long hose runs add an additional 1.0 oz (30cc) of oil for each 10 foot of hose plus an additional 1.1 oz (33cc) as a safety measure.rnrnLong Hose Example:rnA system w/ a 32oz refrigerant charge and 11ft long suction hose: Refrigerant Charge Suction Hose LengthrnOil charge = [[[(32oz x 0.06)+2.2] ÷ 0.9] + (1oz/10ft x 11ft)] x 1.1 safety factorrnrn6.8.2 冷rnrn凍油補充計算方法rn rn6.8.2.1客車，輕型卡車唯一蒸發器rnrn冷煤補充量24oz (680g)對40oz (1133g)rnrn‧ 135cc冷凍油補充TXV系統rn‧ 240 CC冷凍油補充in orifice tube系統rnrn6.8.2.2雙重蒸發器長的水喉系統rn少於56oz或1600g冷煤補充rnrn1. 狀況如遇到冷凍油補充為冷氣系統用異常長的冷卻管路，例如卡車，拖拉機，rn等，可以是堅定的根據總冷煤量，使用冷煤少於56 盎司。 (1600g)。rnrn2. 計算期望冷凍油補充作為如下：rnrn冷凍油量(盎司。) = [(冷煤補的量OZ。 x 0.06) + 2.2] ÷ 0.9.rn冷凍油量(cc) = [(冷煤補的量 克x 0.06) + 66] ÷ 0.9.rnrn例子： 為一冷氣系統用非常長的冷卻管路循環需增加一個另外的1.0盎司(30cc)冷凍油. 冷卻管路的每增加10步距離就要加上一另外的1.1盎司(33cc) 冷凍油做為安全考量。rnrn加長冷氣系統管路例子：rn一個冷氣系統用32oz冷煤灌入和11ft長的冷氣系統管路： 32oz冷煤灌入和11ft長的冷氣系統管路考量下：rn冷凍油補充量= [[[(32oz x 0.06)+2.2] ÷ 0.9] + (1oz/10ft x 11ft)] x 1.1 安全因素rn= 4.6盎司+ 2.2盎司為共計6.8盎司rn= 4.6 oz + 2.2 oz for total of 6.8 ozrnrn壓縮機維修他們有照因該的磅數鎖嗎? 這關係到動態平衡..rn
冷凍油補冷煤時要補多少 ? 十個技師有11個答案,還有人會回答你電腦決定,萬一電腦設定錯.
三電SANDEN原廠告訴你正確答案.
新竹服務我那位,你沒有補冷媒就要補冷凍油的觀念吧.連Dr.LION都說阿你只是灌冷煤.
可憐喔,連官方代表都沒有一定的專業,那真的要自求多福了.三電壓縮機原廠寫的清清楚楚的.
還是法文版教材沒人會.
Oil Replacement Amount During Service
‧ When replacing a system component the goal is to restore to the original factory oil amount. This amount can be found on the compressor label. Use the chart below as
a guide for restoring oil quantities when replacing system components.
冷凍洞油替換的量當你進場維修時.
‧當替換一些冷氣系統零件時,最誤終目標是恢復到原先的出廠的冷凍油量。 這數量可能被在壓縮機標籤上發現。當替換一些冷氣系統零件時，為恢復冷凍油量使用下面的圖表作為參考指標.
Example
Large truck with no leak requires new compressor, suction hose and drier.
Drain oil from old compressor = 3 oz
Oil remaining in old compressor = .5 oz (see note below) Oil lost from old suction hose = 1oz (from table)
Oil remaining in old drier = 1oz (from table)
Amount to be added 5.5 oz
Note: New compressors are delivered with full oil charge. It will be necessary to add or subtract from the delivered oil amount so the total in the compressor equals the amount
to be added.
Example—If the new compressor contains 8 oz (240 cc) you
must drain 2.5 oz so the total in the compressor is 5.5 oz.
Note: When draining the old compressor roughly .5oz will remain in the compressor as
film coating all internal surfaces.
冷凍油級數對嗎? 就如同機油也有級數,你加的油是SP-10等級的嗎?
Variable Displacement Piston Type
Compressor Type Displacement (CC) Refrigerant Original Oil Oil Substitute
SD6V12 125.1 R-134a SP-10 --
SD7V16 163.1 R-134a SP-10 --
修壓縮機的特殊拆裝工具
壞哪就跟材料商叫哪邊,以下可以參考看看.
1.外殼及汽缸壁 2.機身上蓋 3.機身後蓋 4.活塞連桿組 5.壓力鋼片組 6.活塞連桿固定銷 7.固定銷座 8.9.針狀軸承墊片 10針狀軸承 11.針狀濾網 12.轉子中心油封 13.轉子中心油封卡簧
冷媒測漏最新武器:冷媒測漏儀.下面那台是半導體測漏大廠,英福康出的冷媒狗鼻子.
比起泡泡浴或是壓力測試,螢光劑來的快速直接有效率.台灣也有約5000-1000都有.
大陸好像叫鹵素測漏儀.買一隻1000的抓漏就靠自己就可以了.
下面是台南一家零件廠.網路真的找一找,阿里巴巴找一下,一堆資料都出來了.
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真的是搞不懂你呀 wrote:
真的看不出什麼實用性...(恕刪)
