1、 Product Introduction:

The DFHRV series diversion floating coil type semi volumetric heat exchanger has a floating coil that can float slightly up and down, generating high-frequency vibration and forming a good turbulent heat transfer state. It can also automatically remove scale under certain conditions by taking advantage of the difference in expansion of the scale layer between the thin-walled copper tube wall and the outer wall through the high-temperature heat medium.

II Performance characteristics:

l、 Convenient maintenance of floating coils, which can be installed inside the tank or removed from the side of the tank for inspection or replacement.

2. Adopting a multi stroke spiral floating tube group, the distribution of heat medium is uniform, the process is long, and the short-circuit heat transfer phenomenon is eliminated.

3. The floating coil adopts high-quality thin-walled copper pipes, which help to use the different expansion amounts of the pipe wall and scaling layer to remove scale, thereby reducing maintenance and management workload.

3、 Technical advantages:

The floating coil volumetric heat exchanger adopts a floating coil tube arrangement method, which is small in size and easy to transport, install, and maintain.

1. By using floating coil technology, the high-frequency vibration of the heat exchange tube transforms laminar heat transfer into turbulent heat transfer, enhancing the heat transfer coefficient. In addition, the thermal expansion and contraction of the coil can automatically remove scale, ensuring the heat transfer effect.

2. It has a certain regulating capacity, can store hot water, provides stable water supply, and avoids pressure and temperature fluctuations during peak and off peak hot water supply.

3. Built in multiple sets of floating coils for dynamic heat transfer and high heat transfer efficiency. Therefore, it maintains stable water supply pressure and temperature even under the condition of setting an automatic temperature control valve. The characteristics of safe use, water conservation, and comfortable water use.

4. Small in shape and lightweight, modular assembly is used when multiple units are combined, which does not take up space and does not require on duty.

4、 Product Types

The DFHRV series has a total of 25 specifications ranging from 1.0m3 to 15m3 according to the volume integral. Each specification can be divided into steam type and high-temperature hot water type according to the type of heat medium in the tube side. Each model is further divided into four types of heat exchange areas: A, B, C, and D, depending on the heat exchange area, to meet the hot water needs of different projects.

5、 Applicable occasions

This series of heat exchangers is widely used for hot water supply in general industrial and civil buildings, such as hotels, schools, staff dormitories, nursing homes, sports halls, residential areas, etc. It has the advantages of small footprint, energy saving, and reliable operation.

6、 Heat exchanger number description

DFHRV-****-N-S(H)××/××

Among them, RV refers to a volumetric heat exchanger and * * * refers to the diameter of the equipment

N refers to the total volume (m3), which is represented by the design pressure of the pipe side and the design pressure of the shell side, respectively

S refers to steam as the heat medium, H refers to hot water as the heat medium