What is the Structure and application of plate heat exchanger?

- Aug 07, 2018-

Structure and application of plate heat exchanger (plate heat exchanger)

The plate heat exchanger is composed of a set of corrugated metal plates with four corner holes for the passage of two liquids for heat transfer

The sheet metal is installed in a frame with a side panel and a movable panel, and is clamped with clamping bolts

The plates are equipped with sealing gaskets to seal the fluid passage and guide the fluid to flow alternately into the respective passage, forming a heat exchange

Fluid flow, physical properties, pressure drop and temperature difference determine the number and size of the plate

The corrugated plate not only improves the turbulence level, but also forms many supporting points, which can withstand the pressure difference between media


Plate heat exchanger commonly used sheet material

Common materials are as follows (all compressible materials can be used to make sheets)

Stainless steel (AISI 304,AISI 316,SMO(18/12/6/5)· titanium, titanium palladium alloy · alloy Incoloy825· Hastelloy

Graphite plate DiabonF100

Common gasket materials

Many elastic materials can be used as sealing gaskets


Other materials are subject to the needs of the user

Plate heat exchanger in heating system

In all types of heating applications requiring comfort, reliability and safety, plate heat exchanger (PHE)o is widely used in addition to being able to transfer heat from one loop to another

The heat exchanger can also effectively handle the pressure difference that usually exists between the primary side and the secondary side

Avalva's gasket plate heat exchanger has various models and specifications, which can meet the requirements of all comfortable heating conditions such as domestic water heating, swimming pool heating and so on

The plate-type heat exchanger (PHE) can be customized according to the specific needs of users, thanks to the flexibility of the plate-type heat exchanger design

Domestic hot water heating

Compared with the traditional tank heating system, the plate heat exchanger has many advantages

When the tap water passes through the plate heat exchanger (PHE), it can be heated to the required temperature in an instant

This means that users can get hot water immediately at any time

Another advantage of using a plate heat exchanger to heat domestic hot water is that the plate heat exchanger system takes up much less space than a conventional tank hot water heating system

If the user use solar energy to produce domestic hot water, plate heat exchanger (PHE) can separate the treated water in the solar panel from the water loop, and the scale problem and corrosion problem in the solar panel can be alleviated

Swimming pool water heating

In the summer, when the building's heating system does not have to be fully operational, excess heat can be used to heat the outdoor pool water.

A heat exchange unit installed between the swimming pool's circulation system and the building's conventional heating system separates the two circulation circuits and heats the pool water.

However, it is important to remember that the user should wait until the water passes through the heat exchanger before chlorination, in order to avoid the high concentration of chlorine components flowing through the heat exchanger.

When the chlorine concentration is used, it is recommended that the user use the plate heat exchanger plate of titanium.

Plate heat exchanger (PHE) in the cooling system

In various refrigeration applications, especially for cold storage and free cooling, the requirements for thermal efficiency and end temperature difference are very high.

Due to the excellent capabilities of Guangzhou Union in the manufacture of heat exchanger plates, we can control the temperature difference between the two loops to be below 0.50C (0.90F).

In addition, for such working conditions, the plate heat exchanger can be realized by a single flow. This all four interfaces are connected on the front panel. It makes the installation and maintenance of the equipment very convenient.


The main component of a central refrigeration system is the cold source, which is usually a refrigerator.

When cold water or an ethylene glycol solution is taken out on the side of the evaporator, heat is also generated therefrom and discharged on the condenser side of the refrigerator.

A plate heat exchanger, whether used on the condenser side or on the evaporator side, has many advantages.

For example, the user can cool the condenser by using an open source of cold water, such as sea water or river water.

However, there are often aggressive media in open circuits that may affect sensitive air conditioning equipment such as refrigerators.

A plate heat exchanger can eliminate such problems if it can be installed as a separate device between the two systems.

On the evaporator side, a plate heat exchanger can be used to separate the two clean circuit loops to protect other equipment from high pressures.

Regional refrigeration

Regional refrigeration is designed to make better use of existing cooling capacity and environmentally friendly cold sources, so it is environmentally friendly.

While providing convenience and comfort to users, regional cooling also improves equipment idleness, reduces equipment maintenance requirements, and saves space on equipment.

On the other hand, regional cooling can reduce investment and have the characteristics of flexible operation, thus bringing economic benefits to users.

The use of plate heat exchangers has many advantages in indirect zone refrigeration systems.

For example, pressure separation or the like is performed between different circulation circuits. Plate heat exchangers (PHEs) come in a variety of models and have different characteristics.

Therefore, we are convinced that for all kinds of actual cooling conditions, users will be able to find solutions from various plate heat exchangers.