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Integrated steam water heat exchange unit
The integrated steam water heat exchange unit is suitable for heating, bathing, and air conditioning systems in residential, office, factory, and mini
Product details
The integrated steam water heat exchange unit is suitable for heating, bathing, and air conditioning systems in residential, office, factory, and mining areas. 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, and easy installation. It has been widely used in systems such as centralized heating, central air conditioning, domestic water, and enterprise production process water in residential areas.
The secondary water is filtered and purified, then circulated into the heat exchanger and heated by steam or high-temperature water for heating. After steam or high-temperature water enters the plate heat exchanger, it becomes condensed water or high-temperature return water and returns to the heat source for the loop circulation of the primary and secondary heating system. The water replenishment pump injects soft water into the system to maintain a constant system pressure.
Working principle
The secondary water is filtered and purified, then circulated into the heat exchanger and heated by steam or high-temperature water for heating. After steam or high-temperature water enters the plate heat exchanger, it becomes condensed water or high-temperature return water and returns to the heat source for the loop circulation of the primary and secondary heating system. The water replenishment pump injects soft water into the system to maintainsystem pressureConstant.
characteristic
1. By using industrial control calculations or temperature regulators to control the water supply temperature, 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 and store printing operation 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 the heat exchange of soda water, a condensate heat exchange section and condensate temperature control are set up to utilize the heat of condensate water.
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.
9. The water pump adopts vertical water pump and other compact structures, requiring small installation space.
10. Make operation simple and installation and maintenance convenient. The control and heat exchange regulation of the heat exchange unit adopts well-known brands of control components and systems, with excellent performance and high degree of automation. Simple training is required to master the operation of heat exchange units.
Application Construction
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.
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