Kadeli screw chiller classification: air-cooled (water-cooled) screw chiller, air-cooled (water-cooled) screw low-temperature glycol chiller, air-cooled (water-cooled) low-temperature brine chiller
Screw chiller screw chiller and its key components - the compressor screw-type so the name of the screw-type chiller, the unit by the evaporator out of the state of the refrigerant gas; by the compressor adiabatic compression. After the compressor adiabatic compression, it becomes high temperature and high pressure. After being compressed gas refrigerant, in the condenser, isobaric cooling condensation, after condensation changes into liquid refrigerant, and then through the throttle valve expansion to low pressure, into a gas-liquid mixture. The liquid refrigerant under low temperature and low pressure absorbs the heat of the cooled material in the evaporator and turns into gaseous refrigerant again. The gaseous refrigerant re-enters the compressor through the pipeline and starts a new loop. This is the four processes of refrigeration loop. It is also the main working principle of the screw chiller.
What is the configuration of the screw chiller?The detailed configuration of Kadeli screw chiller is as follows:
Name Place of Origin - Brand
Compressor Taiwan - HanZhong / Fusheng
Main Electrical Components LS / Schneider
Solenoid Valve U.S.A. - Emerson
Evaporator Kadeli self-produced
Condenser Kadeli self-produced
Pressure Controller China-HEZHOU
Oil Pressure Gauge (High Pressure) Taiwan Fortune
Oil Pressure Gauge (Low Pressure) Taiwan Fortune
Expansion Valve U.S.A. - Emerson
Filter drier U.S.A.-Eco
Water flow switch China-HEZHOU
Angle valve U.S.A.-Eco
Control system Germany Siemens
Extra-large colorful touch screen Taiwan Velcro
Screw chiller how to selectMainly according to the refrigeration capacity and the return ring Water flow.
Screw chiller selection instructions have?I am glad that Kadeli chiller R & D Department of Ren workers for you to answer.
The main controls of Kadri screw chiller are refrigeration efficiency coefficient, rated refrigeration capacity, input power, and refrigerant type, etc.
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2. Chiller selection should be based on the cold load and use to consider. For low load operation of the refrigeration system for a long time, it is appropriate to choose a multi-head piston compressor or screw chiller, easy to regulate and energy saving.
3. Selection of chiller units, give priority to the higher efficiency coefficient value of the unit. According to the statistics, the general chiller in 100% load throughout the year under the implementation of time accounts for about 1/4 of the total implementation of time. The proportion of execution time for 100%, 75%, 50% and 25% loads in the total execution time is approximately 2.3%, 41.5%, 46.1% and 10.1%. Therefore, when selecting chiller units, priority should be given to models with relatively flat efficiency curves. At the same time, in the design and selection should be considered when the chiller load adjustment range. Multi-head screw chiller part of the load efficiency is excellent, can be selected according to the actual situation.
4. Selection of chiller, should pay attention to the conditions of the nominal working conditions. The actual cooling capacity of the chiller is related to the following factors:
a) chilled water temperature and flow;
b) cooling water inlet temperature, flow and fouling coefficient.
5. When selecting a chiller, attention should be paid to the normal operating range of the model unit, mainly the current limit of the main motor is the current value of the shaft power under nominal operating conditions.
6. In the design and selection should be noted: in the nominal working flow, the outlet temperature of the cold water should not exceed 15 ℃, air-cooled unit outdoor dry bulb temperature should not exceed 43 ℃. If you have to exceed the above range, you should know whether the use of the compressor range is allowed, whether the power of the main motor is sufficient
Enough.
How to choose a low-temperature screw chiller?
First, low-temperature screw-type chiller from minus 5 degrees to minus 80 degrees, according to the temperature division
1. minus 5 degrees to minus 25 degrees
2. minus 30 degrees to minus 50 degrees (single stack)
3. minus 50 degrees to minus 80 degrees (double-pole stack)
Second, low-temperature screw chiller unit according to the introduction of the low-temperature media, common salt Water solution, alcohol, ethylene glycol liquid, generally by temperature: -30 above can use glycol water solution, -50 degrees with alcohol; brine solution zero to -50 degrees can be used, but corrosive (recommended material with alloy copper heat exchanger or stainless steel 316 material)
Shenzhen Kaideli Cold Machinery Device Co!
Screw chiller cleaning how to charge
Every year to buy their own cleaning fluid back to the circle cleaning once!
The general use of scale cleaning fluid can be! Generally in proportion to the return circle pool after the liquid pumped into the unit (at this time the cooling system can not open, only open the pump), shut down the reaction for a period of time, turn on the pump back to the circle rinse, and finally released back to the circle pool of cleaning fluid, cleaning units can be used normally.
You can also go to consult those companies that clean water-cooled air conditioning systems, maybe they can do.
Where is a good place to buy a screw chiller?Recently we have a water-cooled 100HP screw chiller, with the Kadeli chiller brand, the main plant Shandong Gypsum shares have been Kadeli. Huizhou new plant this side to determine theirs.
What is the price of the screw chiller?Water-cooled screw chiller, we Shanghai Qiaoda with two or three sets of Kadeli chiller, a KDS-0 bar 0SLA, seems to be fourteen million, relative to other chillers to be quite expensive. This is our engineering department ordered this chiller, - straight with
Screw chiller advantages and disadvantagesAdvantages of the screw chiller: 1. Simple structure, few moving parts, less wearing parts, only 1/10 of the piston type, low failure rate, long service life; 2. Smooth circumferential movement, low load operation, no "wheezing" phenomenon, low noise, low life expectancy; 2. "Compression ratio can be as high as 20, high EER value; 4. Convenient adjustment, can be adjusted steplessly within the range of 10% to 100%, high efficiency at partial load, significant power savings; 5. Small size, light weight, can be made into a fully enclosed large-capacity unit; 6. Insensitive to wet stroke; 7. Positive pressure, there is no external gas intrusion. Corrosion problems. Disadvantages: 1. Higher price than the piston type; 2. Smaller than the centrifugal capacity of a single machine, lower speed than the centrifugal type; 3. Lubricating oil system is more complex, oil consumption; 4. Large-capacity unit noise is higher than the centrifugal type; 5. Requirements for high precision processing and assembly precision.
Screw chiller 900kw priceUsed in what above to use such a large unit, you look for Juji Sai machinery, may help you.