Handwerkskunst für die Zukunft: Hefei Youshui Reinstwasseranlage erfolgreich an Midea-Werk in Chongqing geliefert

Chongqing Midea General Refrigeration Equipment Co., Ltd.

Located at No.15 Qiangwei Road, Nan’an District, Chongqing, the company has a registered capital of RMB 500 million and around 814 employees (as of 2024). It stands as one of Midea Group’s core manufacturing bases for central air conditioning in Southwest China.

Covering a land area of 300 mu, the enterprise specializes in large central air conditioning products, boasting more than 20 product lines including centrifugal units, screw units and modular units. It holds qualifications for the design and manufacturing of Class I and Class II pressure vessels.

The company is recognized as a High-tech Enterprise, a National Specialized, Refined, Unique & Innovative “Little Giant” Enterprise, and a National Enterprise Technology Center. It also owns titles such as Hidden Champion Enterprise and Provincial Key Laboratory.

Midea industrial chillers (air-cooled / water-cooled industrial cooling units) are widely applied in process cooling for machinery processing, injection molding, electroplating, chemical engineering, new energy, surface treatment, food processing and other industrial sectors. Matching pure water equipment supplied by the original manufacturer provides dedicated water supply for the circulating pipelines of chillers, focusing on stabilizing industrial processes and protecting main units:

1. Protect Core Heat Exchange Components of Chillers (Evaporators, Condensers, Shell-and-tube Heat Exchangers)

Midea industrial chillers feature compact internal heat exchange channels with small pipe diameters. Scale buildup will directly trigger high-pressure alarms, reduced cooling capacity and overload shutdown of compressors. The supporting pure water equipment continuously supplies low-conductivity pure water to keep heat exchange surfaces clean at all times, stabilize the rated cooling output of units, eliminate frequent shutdowns and maintenance caused by poor water quality, and accommodate continuous factory production.

2. Adapt to Closed-loop Process Cooling Circuits and Improve Production Yield

Low-temperature pure water from chillers circulates to production equipment (molds, electroplating tanks, reaction kettles, laser equipment, etc.) for heat exchange. Pure water contains no impurity ions:

• Electroplating & anodizing industries: Prevent impurities from adhering to workpieces to avoid surface defects and pinholes.
• Injection molding & mold cooling: Scale-free mold pipelines ensure uniform and stable cooling, controlling internal stress and deformation of plastic products.
• Chemical & new energy equipment: Eliminate leakage and static hazards induced by conductive ions to boost production safety.

3. Cut Full-lifecycle Operation & Maintenance Costs of Midea Industrial Chillers

• Eliminate high labor and chemical costs for regular acid cleaning and disassembly washing of heat exchangers, extending the service life of compressors, water pumps and sealing parts.
• The closed pure water recycling rate exceeds 90%, drastically reducing industrial water consumption compared with direct tap water discharge and lowering plant water and sewage treatment expenses.
• The full set of pure water equipment can be linked with the PLC control system of Midea chillers. It monitors water conductivity online, sends automatic water quality alarms, and performs fully automatic water replenishment and drainage without dedicated on-site operators.

4. Graded Water Quality Matching Solutions (General Standards for Midea Supporting Pure Water Systems)

Single-stage reverse osmosis pure water is adopted for standard working conditions, with effluent conductivity ≤15 μS/cm. For high-precision electronics and optical cooling scenarios, two-stage reverse osmosis combined with ion exchange is deployed to produce deionized water that meets strict industrial cooling standards. Integrated pure water units with capacities ranging from 2 tons per hour to 50 tons per hour can be customized according to the hourly water flow of Midea chillers, featuring easy on-site integrated installation.