少妇又色又紧又爽又刺激视频|久久老子午夜精品无码怎么打|国产精品人妻一码二码尿失禁|爆爽久久久一区二区又大又黄又嫩

News首頁>News

Basic Principle and Application of Water Chiller

2019-07-16

Chillers are divided into air-cooled chillers and water-cooled chillers in the industry. Chillers are divided into cryogenic chillers and normal-temperature chillers in temperature control. Normal temperature is generally controlled in the range of 0-35 degrees. The temperature control of cryogenic machine is generally in the range of 0 - 100 degrees below zero.


Working Principle of Water Chiller for Cooling Water Equipment with Constant Temperature, Current and Pressure


First, a certain amount of water is injected into the water tank of the machine, and then the water is cooled by the cooling system of the water cooler. Then the low-temperature cooling water is fed into the equipment to be cooled by the water pump. The chiller chilled water takes away the heat, then the temperature rises and returns to the water tank to achieve the cooling effect.


In air-conditioning systems, chilled water is usually distributed to heat exchangers, or coils are cooled in the air-handling units, or other types of terminal equipment in their respective spaces (S-air), and then the cooling water is redistributed back to the cooled. These cooling coils transfer sensible heat and latent heat from air to chilled water, so dehumidifying cooling air flow is usually used. A typical air conditioning unit uses refrigeration capacity rated at 15 to 1500 tons (180,000,18,000,000 British heat units/h or 53 to 5,300 kilowatts). The temperature range of frozen water ranges from 35 to 45 degrees Fahrenheit or from 1.5 to 7 degrees Celsius, depending on the application requirements.


circulatory system


The liquid refrigerant in the evaporator absorbs the heat in the water and begins to evaporate in the refrigerant recycling system of the water cooler. The temperature difference between the final refrigerant and the water forms. The liquid refrigerant is also completely evaporated into gaseous state and then inhaled and compressed by the compressor. The gaseous refrigerant absorbs heat through the condenser and condenses into liquid. After throttling, the superheated expansion valve becomes a low temperature and low pressure refrigerant and enters the evaporator to complete the refrigerant recycling process.


When shaping products of water chiller, due to the variety of raw materials, the size and shape of the shaping products are different, the clamping force required is also different. Please adjust the clamping force according to the minimum required. In this way, the power consumption can be saved and the service life of the machine can be significantly prolonged.


Industrial water chiller must pay attention to the safety of operation when using the machine. At the beginning of each operation, please check the reliability of the safety device, safety rod and safety door of the machine. During the operation of the machine, remember not to put your hand into the clamping mechanism. When taking products, we must open the safety door, after confirming personnel safety and no foreign body in the mould, we can close the safety door. In addition, in operation, the hand can not reach between the nozzle and the die gate. When repairing the mould, please turn off the oil pump motor.


Screw chiller has the advantages of high efficiency, good performance, low noise, low vibration, energy saving, high reliability and long service life. According to customer's needs and cold tonnage size, single or multi-unit combination is adopted. Compressors can rotate alternately automatically according to load changes, balancing the running time of each compressor, greatly prolonging the service life of chillers. Use industry 1. Selection of the size of special water chiller for injection moulding machine is the need for 25HP water chiller when used for cooling of injection moulds. When used for cooling other equipment, it depends on the specific flow rate of cooling water circulation. 2. The selection of the heat preservation tank and pump of the water cooler sometimes follows the actual situation of the customer's factory. The power requirement of the open water cooler is the same as that of the box water cooler of the same type when the external water pump is connected. 3. The return water temperature of the chiller should not be higher than 40 degrees. The higher the return water temperature, the greater the damage to the compressor.



欧美国产一区二区三区激情无套| 精品成人乱色一区二区| 久久影院综合精品| 国产97色在线 | 日韩| 亚洲精品电影院| 日韩精品无码熟人妻视频| 亚洲中文波霸中文字幕| 欧美黑人添添高潮a片www| 成在人线av无码免费高潮喷水| 三个男吃我奶头一边一个视频| 久久精品国产99久久久古代 | 国产毛多水多高潮高清| 真人做人试看60分钟免费| 偷窥国产亚洲免费视频| 亚洲av无码一区二区三区在线播放| av国产传媒精品免费| 边啃奶头边躁狠狠躁| 久久精品中文字幕大胸| 搡老女人老妇老熟女hd| 国产激情一区二区三区| 国产猛男猛女超爽免费视频 | 国产亚洲成av人片在线观看| 欧洲熟妇色 欧美| 人妻大战黑人白浆狂泄| 精品国产欧美一区二区| 久久er99热精品一区二区| 欧美性生交活xxxxxdddd| 亚洲精品成人久久久| 免费特级黄毛片| 久久无码人妻热线精品| 精品少妇人妻av无码久久| 狠狠色噜噜狠狠狠狠777米奇| 人人妻人人超人人| 精品久久人人爽天天玩人人妻| h动漫无遮挡成本人h视频| 欧美xxxx做受性欧美88| 夜鲁鲁鲁夜夜综合视频欧美| 欧洲精品成人免费视频在线观看| 日本国产三级精品桃色| 色婷婷综合久久久久中文一区二区 | 最新免费在线播放av|