BOSCH Laboratory Selects ChunMu Explosion-Proof Refrigerant Charging Machine

As an excellent global supplier of automotive technology, BOSCH's Automotive Air Conditioning Laboratory is dedicated to the research and development of energy-efficient and environmentally friendly air conditioning systems. In recent years, with the upgrading of EU environmental regulations and the market demand for low-carbon technology, the lab has started to test the new environmentally friendly refrigerant R290 (propane) to replace the traditional refrigerant test. However, the flammable and explosive nature of R290 has imposed stringent requirements on the safety, precision and ease of operation of the refrigerant charging machine.

The laboratory needs to frequently charge R290 refrigerant for different sizes of automobile air-conditioning systems, with the single charging volume centered on 100-200 grams, 400-500 grams and less than 1kg, and needs to be adapted to the demand for rapid switching of disposable cylinders. There are two major pain points in the traditional equipment: first, the charging precision is not accurate, which may lead to waste of refrigerant or unstable system performance; second, the explosion-proof design is missing, which leads to high operation risk; and third, the cylinder replacement process is cumbersome, which affects the efficiency of the experiment.

In response to the needs of BOSCH, ChunMu customized research and development of explosion-proof refrigerant charging machine, equipment using intelligent flow meter and temperature compensation technology, filling accuracy of ± 0.5%, to meet the needs of several grams of refrigerant filling, suitable for laboratory testing of multi-specification systems. The equipment has passed EU ATEX explosion-proof certification and domestic third-party explosion-proof certification, and the key components are made of non-sparking materials and gas-tight isolation structure, with built-in multi-point combustible gas monitoring module to provide real-time early warning and automatically cut off the gas source. Equipped with three-way quick connect interface, compatible with the mainstream market specifications of disposable cylinders, convenient replacement, and equipped with anti-leakage self-locking valve, to prevent the escape of refrigerant in the process of bottle replacement.

After the equipment is put into use, the laboratory's single-day testing efficiency is increased by 40%, and the utilization rate of R290 refrigerant reaches 98.5%, which is a great cost saving. With accurate and safe performance, ChunMu refilling machine has become a key partner for users to promote the landing of R290 technology. With its deep understanding of explosion-proof technology and user scenarios, ChunMu continues to help global enterprises overcome the challenges of flammable refrigerant industrialization and promote low-carbon transformation of the refrigeration industry.

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