Energy saving and consumption reduction is an important problem facing the heating industry. Circulating pump automatic water supply system is an important component of heating equipment, heating pipeline pump operation power consumption is large, the time frequency control automatic water circulating pump, not only to ensure the pressure of the main pipe in the constant, ensure the normal heating, but also achieve the purpose of saving energy, because of this, we need to design a kind of automatic water circulating pump heating pipeline according to the size of the main road system, pressure pipe, automatic replenishment.
The purpose is for the heating system of the above problems, a design scheme of energy saving technology, make the public building heating system circulating pump water with automatic control ability, according to the size of the main road in the pipeline pressure, automatic replenishment, time frequency dynamic adjustment and control automatic water circulation pump rate, changes the current situation of the heating system energy waste exists.
The automatic water replenishing system of heating pipeline circulating pump is characterized by comprising an automatic control part and a pipe component part, and the automatic control part includes a frequency converter, a manual operation device and a pressure transmitter.
The pipeline component comprises a main pipe, the circulation pumps are installed on the main pipeline, three-phase power line circulating pump connected inverter output, manipulator 4 ~ 20mA current feedback signal connected inverter 4 ~ 20mA current signal end manipulator 4 ~ 20mA current signal output end connection pressure transmitter.
The inverter is used to control the circulation pump with frequency converter, and there is a bypass pipe on both sides of the circulating pump, and a butterfly valve is installed on the bypass pipe.
The beneficial effect of heating pipeline circulating pump automatic water heating system circulating pump water system with automatic control ability, according to the size of the main road in the pipeline pressure, automatic replenishment, time frequency dynamic adjustment and control automatic water circulation pump, changes the current situation of the heating system energy waste exists. The device has the advantages of simple structure, stable performance and compact structure, and can be retrofit on the basis of existing equipment, with less investment and suitable for wide application and popularization.
Specific implementation methods
The automatic water supply system of heating pipeline circulating pump includes automatic control part and pipeline component part, and the automatic control part includes frequency converter 1, hand operator 2 and pressure transmitter 3.
The pipeline component comprises a main pipe 4, the main pipeline 4 installed on the circulating pump 5, pump 5 three-phase power line is connected with the output end of the inverter I, manipulator 2 ~ 4 20mA feedback current signal connected inverter 4 ~ 20mA current signal end manipulator 4 ~ 20mA current signal output end is connected with a pressure transmitter.
The inverter I output terminal frequency control circulating pump 5 operates, 5 side of the circulating pump is provided with bypass pipe 6, and the bypass pipe 6 is installed with butterfly valve 7.
The practice shows that the efficiency of energy saving is obvious after the operation of the device. If it is popularized, the efficiency is more considerable.
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