heat exchange equipment

This product is suitable for heating, bathing, and air conditioning systems in residential areas, government offices, factories and mines, hospitals, hotels, schools, and other places. The integral heat exchange unit can be used for both water water exchange and steam water exchange. The unit is composed of a heat exchanger, a circulating pump, a make-up pump, an electric control cabinet, a filter, a base, pipelines, valves, instruments, etc. It can also be equipped with automatic constant pressure make-up devices, water treatment equipment, water tanks, variable frequency control of water pumps, temperature control valves, remote communication control, etc., thus forming a complete heat exchange station. This unit has a standardized and modular design, complete configuration, easy installation, high efficiency and energy saving. It has been widely used in systems such as centralized heating in residential areas, central air conditioning, domestic water supply, and enterprise production process water supply.
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Characteristics of heat exchange unit
1. By using industrial control calculations or intelligent temperature regulators, the water supply temperature can be intelligently controlled, that is, the water supply temperature can be programmed to vary with outdoor ambient temperature, standard room temperature, and time, resulting in high heating quality and energy efficiency.

2. Industrial control computers display, store and print various operating parameters, including: heat medium flow rate, heat medium temperature, heat medium pressure, heat supply, outdoor temperature, standard room temperature, water supply temperature, condensate temperature, water supply pressure, etc.

3. During steam water heat exchange, a condensate heat exchange section and condensate temperature control are installed to fully utilize the heat of condensate.

4. The system adopts frequency conversion control, automatic water replenishment, and voltage stabilization for water replenishment.

5. Adopting high-performance stainless steel plate heat exchangers, the unit has a small volume and occupies a small area.

6. The circulating water pump can operate with variable frequency and variable speed.

7. Standard modular design allows for flexible selection of control content based on user needs, reducing investment.

8. Centralized digital display of operating parameters, convenient and reliable.

Application Structure of Efficient Spiral Tube Heat Exchanger Unit

1. Temperature control

Use an electric regulating valve to control the flow rate of the primary network and maintain the set temperature at the outlet of the secondary network.

Use a self-supporting temperature regulating valve to control the flow rate of the primary network and maintain the set temperature at the outlet of the secondary network.

Automatically adjust the outlet temperature of the secondary network according to the outdoor temperature.

2. Pressure and differential pressure control

Secondary side supply and return water pressure difference control, secondary side return water pressure control

3. Automatic water replenishment

Variable frequency water replenishment, using the pressure signal of the secondary network return water to control the output of the frequency converter, achieves automatic water replenishment, and maintains a constant pressure in the system.

The electrical control of the electric contact pressure gauge adopts the upper and lower limits of the secondary network system pressure compared to previous years to control the start and stop of the water replenishment pump, so as to maintain a constant pressure in the system.

4. On site optimization

Return water temperature limit, heat flow (water flow) limit, return water temperature difference limit, scaling detection

5. Display alarm

Realize microcomputer automation monitoring and control of temperature, pressure, heat, flow, and outdoor temperature parameters at the inlet and outlet of the primary and secondary networks, and automatically alarm for system overpressure, motor overheating, power phase loss, and clogged dirt collectors.

6. Communication function

The controller of the unit has a standard 485 communication interface, which can collect the parameters of the power station controller through real-time patrol with the monitoring center in active and passive modes, and upload them in a timely manner when the controller alarms.

The control area function of the unit depends on the actual situation of the heat exchange station and can be unmanned.