The cooling circulating water machine is abbreviated as a chiller. There are many models of chillers on the market now, and the quality of manufacturers varies greatly. The prices also differ greatly, with some having a price difference of 1-2 times. Make the users at a loss.
It is not recommended to choose products with lower prices. Firstly, the product price is definitely a combination of cost and profit. If the selling price is too low, it will definitely affect the machine cost. Firstly, the cost of the compressor accounts for a large part of the cost of the chiller, and the compressor is the core component of the chiller. Some manufacturers are willing to use refurbished compressors as new compressors in order to reduce costs, which is difficult for ordinary users to distinguish. If a chiller with refurbished compressors is purchased, it will cause a decrease in energy consumption ratio, unstable performance, and even the compressor will be quickly scrapped, affecting production and causing greater losses. Just compare the energy efficiency ratio of the American valley wheel compressor used by our company with some cheaper compressors, and the price is also 1-2 times higher. Secondly, efforts will be made in the condenser aspect. Some condensation areas may shrink, and copper pipes may be replaced with aluminum pipes. It is more practical to renovate the condenser, which can cause frequent alarms from the chiller compressor (especially in summer) and significantly reduce the cooling capacity. Reduced evaporation area, thinning of copper pipes, material discounts, etc. After sales service is also not guaranteed.
Some users choose machines that blindly pursue price, but ignore the more important mission of chillers, which is to ensure the reliability and stability of industrial production or experimental processes. Indeed, at that time, the procurement seemed to have saved some costs, but in reality, the subsequent problems will be even greater, resulting in manpower consumption and production losses far greater than the savings.
The configuration of the three units varies greatly, and some chillers also have vastly different configurations. Take the water pump as an example, stainless steel water pumps are definitely more durable and reliable than ordinary cast pumps, and will have benefits for water quality, thus protecting the cleanliness of the pipes inside the main unit and better performing the main unit. Our inlet and outlet all use stainless steel joints that are easy to install, while low-end chillers use threaded galvanized pipe joints to save costs, which is inconvenient for plastic hose connections.
The quality of the temperature control system is directly related to the stability of the chiller system and the accuracy of temperature control. Poor quality temperature control systems cause frequent alarms and even shutdowns of the chiller. Our company's entire series of chillers adopt imported PID temperature control systems from Japan, and can be connected to a central control system to achieve intelligent operation according to specific user requirements.