磁悬浮变频离心式冷冻机组HMC-XC和HMC-LS工业冷水机详细介绍

水冷磁悬浮离心式冷冻机组

Water-cooled magnetic levitation centrifugal refrigeration unit

（一）机组特点

1.节能突破，省电50%

IPLV高达16.3，COP达38，是铝型材行业超节能型冷水机组，较普通冷水机组节能50%以上。

2.便利突破，无需高压电源、无需复杂的启动系统        

①380V通用电源，无需单独申请10KV电源，不需要单独审批电源且更安全。

② 2安培柔性无压差启动（***1500安培），标配软启动器，对电网无冲击（节省配电费用）。

3.寿命突破，系统寿命高达30年，免油路维护

①磁悬浮轴承运转无机械摩擦，设计寿命高达 30 年（寿命长一倍，不需要中间更换设备，省工省心），传热效率年损失不足1%,远超普通离心机和螺杆机产品。

②无油路系统，免维护；0动力传动损失，且节省后期运行维护费用（整个生命周期节省40多万元）

4.舒适突破，低振动、低噪音、低温差

①主机噪音低至70dB（A）（普通产品85dB（A）以上）；即使在机房办公也不会损害机房管理人员健康。

② 0%~***负荷连续智能调节，温度控制精度±0.1℃；温度波动小，可根据氧化电源周期性电流电压波动自动调节机组的负载状态，***控制氧化槽液温差，***氧化膜厚度与颜色均一性。

5.高比例的***，有良好的设备运行稳定性和产品质量可靠性。

6.***的投资回报率：超省的投入运行费用，及***的后期维修维保费用，给用户带来***性价比的投资回报率，2年内即可收回投入成本。

(1) Features of the unit

1. Breakthrough in energy saving, saving 50% of electricity

The IPLV is as high as 16.3, and the highest COP is 38. It is an ultra-energy-saving chiller in the aluminum profile industry, which saves more than 50% of energy compared with ordinary chillers.

2. Convenient breakthrough, no need for high-voltage power supply, no complicated start-up system

① 380V universal power supply, no need to apply for 10KV power supply separately, no need to approve power supply separately, and it is safer.

② 2 amps flexible non-pressure start (1500 amps in the industry), standard soft starter, no impact on the grid (saving power distribution costs).

3. Life breakthrough, system life up to 30 years, oil-free circuit maintenance

①Magnetic suspension bearings operate without mechanical friction, and have a design life of up to 30 years (twice the life, no need for intermediate replacement equipment, saving labor and worry), and the annual loss of heat transfer efficiency is less than 1%, far exceeding ordinary centrifuges and screw machines.

②No oil circuit system, maintenance-free; 0 power transmission loss, and save later operation and maintenance costs (saving more than 400,000 yuan in the entire life cycle)

4. Breakthrough in comfort, low vibration, low noise, low temperature difference

① The noise of the main engine is as low as 70dB (A) (ordinary products are above 85dB (A)); even if you work in the computer room, it will not damage the health of the computer room management personnel.

② 0%~*** load continuous intelligent adjustment, temperature control accuracy ± 0.1 ℃; temperature fluctuation is small, the load status of the unit can be automatically adjusted according to the periodic current and voltage fluctuations of the oxidation power supply, and the temperature difference of the oxidation tank liquid can be precisely controlled to ensure that the thickness of the oxide film is consistent with the Color uniformity.

5. High market share, good equipment operation stability and product quality reliability.

6. Ultra-high return on investment: ultra-low investment and operation costs, and ultra-low post-maintenance costs, bringing users a very cost-effective return on investment, and the investment cost can be recovered within 2 years.

（二）机组优势

1、磁悬浮冷水机组是世界上最节能的冷水机组，节能率比普通冷水机组节能50%以上；

2、磁悬浮冷水机组控制系统是进的智能化控制系统，高度契合国家工业2025发展战略；

3、磁悬浮冷水机组技术***，颠覆了以往压缩机制冷的运转效率；

4、产品性能对比

●直冷磁悬浮变频离心机设计寿命达30年，螺杆机的设计寿命15年；

●合美磁悬浮机组不需要普通螺杆机组所必需的油压差，尤其是在过渡季节、秋、冬季外界温度低于零下情况下，磁悬浮机组运行更加稳定，而普通机组需要将冷凝器进水温度保持在20℃以上。

?磁悬浮离心机终生不需要油路保养，螺杆机油路至少每年保养一次。

?磁悬浮机组启动前不需要预热，螺杆机启动前需要预热。

●磁悬浮机组直冷氧化工况综合能效比高达到16.3，直冷螺杆机氧化工况能效比  在7.0左右。

2) Unit advantages

1. The magnetic levitation chiller is the most energy-saving chiller in the world, with an energy-saving rate of more than 50% compared with ordinary chillers;

2. The control system of the maglev chiller is the most advanced intelligent control system, which is highly in line with the national industrial development strategy of 2025;

3. The technology of magnetic levitation chiller is leading, subverting the operation efficiency of compressor refrigeration in the past;

4. Product performance comparison

The design life of the direct cooling magnetic levitation frequency conversion centrifuge is 30 years, and the design life of the screw machine is 15 years;

The Hemei maglev unit does not need the oil pressure difference necessary for ordinary screw units, especially in the transition season, autumn and winter when the outside temperature is below zero, the operation of the maglev unit is more stable, while the ordinary unit needs to reduce the condenser water temperature Keep above 20°C.

?Magnetic levitation centrifuges do not need oil circuit maintenance for life, and screw machine oil circuits are maintained at least once a year.

?The magnetic levitation unit does not need to be preheated before starting, but the screw machine needs to be preheated before starting.

●The comprehensive energy efficiency ratio of the direct cooling oxidation working condition of the magnetic levitation unit is as high as 16.3, and the maximum energy efficiency ratio of the direct cooling screw machine oxidation working condition is about 7.0.

（三）机组主要部件性能说明

1、压缩机

磁悬浮轴承技术：与喷油螺杆式压缩机相比，各机械部件无任何接触摩擦，无需润滑系统，***解决螺杆式机组回油问题，***增加机组可靠性，大大降低了保养成本。

变频驱动：压缩机转速25000rpm，10%-***变频无极调节，***了机组的高综合能效，机组在不同整流器负荷下部分符合优化运行控制，实现大范围***恒温控制，克服了在部分负荷离心压缩机喘振问题，启动电流仅为2A，减少了对电网的冲击、提高了氧化膜均匀度。

无油：压缩机无需润滑油，整个制冷系统无润滑油，提高换热器的换热性能达10%。设备保养时也无须更换润滑油。

高效节能：制冷系统无油运行，无换热器油膜热阻，可提高换热效率15%，采用ODP为0的R134A环保型制冷剂，机组在***工况下能效比高达38。

安全：机组保护功能齐全，压缩机的所有运行参数可数字显示，内部电算机计算运行安全，当机组接近保护值时，内部计算机自运行进行工况调整。

环保：制冷剂采用ODP为0的R134A环保型制冷剂。不易燃、不爆炸、***、无刺激性、无腐蚀性、不含氯原子，对臭氧层无破坏作用。

低噪音：磁悬浮压缩机运行无摩擦，无往复冲击运动，振动小，噪音低，比常规同容量机组低6-10dBA,对周围建筑物无振动影响。

补气增焓+双级压缩：比单级压缩效率提高 6%。

物联网云端远程监控：网络控制，自动报警，快速故障诊断排除，可在浏览器实时查看运行工况，数据云存储；数据智能分析。

2、高效率蒸发器、冷凝器均有国家压力容器认证

?机组设计采用高效降膜式蒸发器，采用降膜滴淋技术，相比于传统满液蒸发器提升15%换热效率，蒸发器设计采用 CAD/CAM 设计技术，由CNC 加工制作完成，***解决了磁悬浮压缩机在高速运转吸气带液问题使压缩机制冷功效提升至。

?蒸发器换热管采用25.4mm*1.5mm（管径*壁厚）型号高效316L换热管，经过特殊0.6mm轧齿工艺处理提高2.8倍换热面积，轧齿处理后有效壁度达到0.9mm，相比使用常规19mm*1.2mm型号换热管（轧齿后有效壁厚0.6mm）***的提升了安全性和使用寿命。在蒸发器长度相同，同样的换热面积情况下，使用25.4mm*1.5mm管比19mm*1.2mm管材料多使用25.19%，过流截面积增大33.76%。

?机组采用水冷管壳式冷凝器，使用高效外螺纹紫铜管，由CNC 加工中心制造完成，紫铜管外倒刺形翅齿可有效刺破冷媒液膜，降低冷媒液膜热阻使冷媒冷凝后迅速滴落。管束——采用最TURBO-FIN高效传热管束， 内壁强化传热，且胀管密封性好，每根管子可单独更换，维修方便。管外径为19MM，管厚为1.2MM，采用22BWG铜合金。在机组中间隔板的地方采用比螺纹管厚一倍的光管与支撑板紧密涨接,***铜管在冷媒高速冲击下,不会因铜管与支撑板的碰撞产生破损,避免机组漏管产生其他恶性事故的发生。

3、控制系统主要功能和特定说明

采用德国西门子微电脑控制系统，可视化、触摸式人机介面操作，能随时监控机组运转状态，并根据实际负荷变化自动调节机组能量输出。控制箱内预留多个专用接点和备用接点，以供用户远程控制，远控报警线路和其他控制线路。并可通过RS-485标准串行通讯口和PLC控制系统,能和各种中央控制系统相兼容和连接,进入设备主界面，进行远程通讯控制。另外具有压缩机线圈温度过高、冷水出水温度过低、排气温度过高、压缩机频繁启停、电压异常等保护功能；定时开关机、远端遥控功能、运转时间限制、定时开关机、机油预加热、故障自判断、故障复位等控制功能；压缩机排气温度、环境温度、回水温度、出水温度等显示功能。

4、节流装置-电子膨胀阀特点说明

采用美国SPORLAN品牌电子膨胀阀反应灵敏动作快捷，可自定义开闭速度和速度，在10%--***范围内进行***调节。***控制载冷剂流量和蒸发器液位，可满足机组在不同负荷工况下的冷量输出需求。

3) Performance description of main components of the unit

1. Compressor

Magnetic suspension bearing technology: Compared with oil-injected screw compressors, each mechanical part has no contact friction and no lubrication system is required, which completely solves the oil return problem of the screw unit, significantly increases the reliability of the unit, and greatly reduces maintenance costs.

Frequency conversion drive: The compressor speed is 25000rpm, 10%-*** frequency conversion stepless adjustment, which ensures the high comprehensive energy efficiency of the unit. The unit partly complies with the optimal operation control under different rectifier loads, realizes large-scale accurate constant temperature control, and overcomes the centrifugal force under partial load. Compressor surge problem, the starting current is only 2A, which reduces the impact on the power grid and improves the uniformity of the oxide film.

Oil-free: The compressor does not need lubricating oil, and the entire refrigeration system has no lubricating oil, which improves the heat transfer performance of the heat exchanger by 10%. There is no need to replace the lubricating oil during equipment maintenance.

High efficiency and energy saving: The refrigeration system operates without oil, and there is no oil film thermal resistance of the heat exchanger, which can increase the heat exchange efficiency by 15%. The R134A environmentally friendly refrigerant with an ODP of 0 is used, and the energy efficiency ratio of the unit is as high as 38 under the optimal working condition.

Safety: The unit has complete protection functions, all operating parameters of the compressor can be displayed digitally, and the internal computer calculates the safe operation. When the unit is close to the protection value, the internal computer automatically adjusts the working conditions.

Environmental protection: The refrigerant adopts R134A environmentally friendly refrigerant with ODP of 0. Non-flammable, non-explosive, non-toxic, non-irritating, non-corrosive, does not contain chlorine atoms, and has no destructive effect on the ozone layer.

Low noise: The magnetic levitation compressor runs without friction, without reciprocating impact movement, with small vibration and low noise, which is 6-10dBA lower than conventional units with the same capacity, and has no vibration impact on surrounding buildings.

Enthalpy increase with supplemental air + two-stage compression: 6% higher efficiency than single-stage compression.

Internet of Things cloud remote monitoring: network control, automatic alarm, fast fault diagnosis and elimination, real-time viewing of operating conditions in the browser, data cloud storage, and intelligent data analysis.

2. The high-efficiency evaporator and condenser have national pressure vessel certification

?The design of the unit adopts high-efficiency falling film evaporator and falling film dripping technology, which improves the heat exchange efficiency by 15% compared with the traditional flooded evaporator. The design of the evaporator adopts CAD/CAM design technology and is processed by CNC. Solved the problem of the magnetic levitation compressor running at high speed with suction and liquid, and maximized the refrigeration efficiency of the compressor.

?The evaporator heat exchange tube adopts 25.4mm*1.5mm (pipe diameter*wall thickness) type high-efficiency 316L heat exchange tube, which increases the heat exchange area by 2.8 times after the special 0.6mm tooth rolling process, and the effective wall thickness reaches 0.9 after the tooth rolling treatment mm, which greatly improves the safety and service life compared with the conventional 19mm*1.2mm type heat exchange tube (the effective wall thickness after rolling is 0.6mm). In the case of the same evaporator length and the same heat exchange area, using 25.4mm*1.5mm tubes uses 25.19% more material than 19mm*1.2mm tubes, and the flow cross-sectional area increases by 33.76%.

?The unit adopts a water-cooled shell-and-tube condenser, using high-efficiency external threaded copper tubes, which are manufactured by CNC machining centers. The barb-shaped wing teeth on the outside of the copper tubes can effectively pierce the liquid film of the refrigerant, reducing the thermal resistance of the liquid film of the refrigerant and making the refrigerant Drops rapidly after condensation. Tube Bundle—Using the most TURBO-FIN high-efficiency heat transfer tube bundle, the inner wall enhances heat transfer, and the expansion tube has good sealing performance. Each tube can be replaced independently, which is convenient for maintenance. The outer diameter of the tube is 19MM, the tube thickness is 1.2MM, and the 22BWG copper alloy is used. In the middle partition of the unit, a smooth tube twice as thick as the threaded tube is used to tightly expand the support plate to ensure that the copper tube will not be damaged due to the collision between the copper tube and the support plate under the high-speed impact of the refrigerant, and to avoid the leakage of the unit The occurrence of other vicious accidents.

3. Main functions and specific instructions of the control system

Adopt German Siemens microcomputer control system, visualized, touch-type man-machine interface operation, can monitor the operating status of the unit at any time, and automatically adjust the energy output of the unit according to the actual load change. A number of dedicated contacts and spare contacts are reserved in the control box for remote control by users, remote control alarm lines and other control lines. And through RS-485 standard serial communication port and PLC control system, it can be compatible and connected with various central control systems, enter the main interface of the equipment, and carry out remote communication control. In addition, it has protection functions such as high compressor coil temperature, low cold water outlet temperature, high exhaust temperature, frequent start and stop of compressor, and abnormal voltage; timer switch, remote control function, operating time limit, timer switch, Oil preheating, fault self-judgment, fault reset and other control functions; compressor discharge temperature, ambient temperature, return water temperature, outlet water temperature and other display functions.

4. Description of the characteristics of the throttling device-electronic expansion valve

The American SPORLAN brand electronic expansion valve is used with sensitive response and quick action, and the opening and closing speed and speed can be customized, and precise adjustment can be made within the range of 10%-***. Precisely control the flow rate of the brine and the liquid level of the evaporator to meet the cooling output requirements of the unit under different load conditions.