Advantages of Heat Exchangers
- High Heat Transfer Efficiency
- High Waste Heat Recovery Capacity
- High Thermal Conductivity
- Can Be Customised to Specific Requirements
- Suitable for Multiple Scenarios
Haoha, a Professional Manufacturer in China's Water Heater Industry
Haoha has 12 years of experience in the manufacturing of water heaters, in addition to a broad experience in the production of heat exchangers for water heaters. Each separate heat exchanger type has its own dedicated production lines, under which they are closely checked in terms of quality. Haoha has always provided heat exchangers to water heaters of internationally known and recognised brand names such as Midea, Haier, and Aux. Haoha will be your first choice should you wish to have a supplier of water heater heat exchangers.
What is heat exchanger
The heater is the main element of a water heater, and this is where all the energy is efficiently transferred to cold water, thus transforming it into hot water so as to use it. The speed at which the heat exchanger operates, the stability of water temperature and the life-span of the water heater all depend on the performance of the heat exchanger.
Types of Heat Exchangers
The main purpose of the heat exchangers of various types of water heaters is similar: should heat the cold water. They, however, dispute in terms of how they heat and where they focus.
Microchannel heat exchangers are used in refrigerant compression to increase the temperature of low-grade thermal energy using ambient air in heat pump water heaters. They are explicitly designed in case of low-temperature heat exchange and have excellent resistance to pressure.
The major use of coil heat exchangers is in solar powered water heaters, with the medium of heat source being pumped through the coils and the heat exchanged through the walls of the tubes to heat the cold water. They are made in a way that emphasises the storage of water and also the conservation of hot water.
Strictly speaking, an electrically heated heat exchanger is a kind of heat exchanger that is directly immersed in water and is able to transfer thermal energy, which is directly converted to electrical energy, directly to water, and hence defines the highest thermal efficiency. It lays stress on direct contact heating.
Unlike other types of heat exchangers used for heating purposes, liquid-cooled plate heat exchangers are metal plates specifically implemented to cool heat-generating equipment, otherwise used in high-power electronic equipment.
Strict Quality Control for All Your Water Heater Heat Exchangers
Any completed water heater heat exchanger is also strictly inspected in order to make certain that any microchannel heat exchangers have smooth welded seals, can be permanently attached and do not feel loose in any way; coil heat exchangers must also provide intact enamelling, even welds and no possibility of leakage. Products can be released for sale only after these checks have been passed.
High-Efficiency, Rapid Heat Transfer Water Heater Heat Exchanger
Microchannel heat exchangers are very efficient heat transfer elements created with microchannel technology. These consist of dozens of flat porous aluminium tubes, and aluminium foil is used to stuff the interstitial areas between the tubes to maximise the surface area of heat exchange, leading to high heat exchange performance. Coil heat exchangers have a medium that contains their heat source in the coil, which absorbs the heat of the collector and heats the cold water in a short period of time. They improve the high heat transfer rate and high heat exchange performance.
Application of Heat Exchangers in Water Heaters
There are various classes of heat exchangers used in different classes of water heaters. The step below describes how they are used in two popular forms of water heaters.
The heat pump water heater also has a small internal design with microchannels that provide a small area but a large area of the heat exchange surface. Its elastic appearance also enables it to fit well inside the tank, such that it is able to transfer heat at a fast rate and consume less space. It receives thermal energy at a low temperature of air and compresses it, and heats it using the refrigerant.
Solar water heaters use coil heat exchangers, whereby the substance contained inside the coils captures solar collector heat. This quickly conducts thermal energy in the walls of the coil so that the cold water is heated, hence increasing the temperature of the stored water. The medium of the coils is totally separated from the water, and so, any leakage of the medium would not contaminate the body of water.
In the microchannels of a heat pump water heater, the refrigerant used is either a refrigerant like freon or a similar substance.
Microchannel heat exchangers are not very adaptable to low temperature conditions. They tend to form frost and block the airflow pathways in low-temperature conditions and are likely to lower the efficiency of heat transfer. Coil heat exchangers have better durability in cold climates. They can be filled with antifreeze in their internal coils, which has a low freezing point, alleviating the risks of frosting, and is a reliable asset to cold areas.
Microchannel heat exchangers provide options on the number of flat tubes to be used, and coil heat exchangers can be modified to the desired size of the coil and the tube port size.
