A secondary pump controller of a heat exchange station

Abstract

The invention discloses a controlling instrument for a secondary pump in a heat exchanging station. The controlling instrument comprises a secondary pump body, a high-area regulating valve, a low-arearegulating valve, a low-area plate type heat exchanger, a high-area plate type heat exchanger, a low-area secondary circulating pump, a high-area secondary circulating pump and a central controller ALK; one end of the secondary pump body is connected with the high-area regulating valve and the low-area regulating valve, and the high-area regulating valve is further connected with the low-area plate type heat exchanger and the high-area plate type heat exchanger; and the low-area plate type heat exchanger further outputs low-area water supply through the low-area secondary circulating pump. According to the controlling instrument for the secondary pump in the heat exchanging station, balance temperature supplying of all areas in the heat exchanging station can be achieved by using only onesecondary pump, the controlling method of adding a valve before pumping is realized, and the target temperature can be set respectively, so that energy-saving operation of the pump and a whole heating system is achieved, and an electric regulating valve does not produce additional resistance influence on the pump.

Description

technical field [0001] The invention relates to heat exchange technology, in particular to a secondary pump controller of a heat exchange station. Background technique [0002] In the existing heat exchange station control, the secondary pump has been widely used to control the primary water flow through the plate exchange. Most of the secondary pumps control the water supply temperature of the secondary network to adjust the hot water flow through the plate exchange to achieve precise adjustment of the temperature at the user end. However, most secondary pump systems need to add multiple secondary pumps in one heat exchange station when encountering multiple plate exchange conditions such as high and low areas; or only use one secondary pump, but this cannot be done when the flow rate of the primary network changes. Different groups of boards in each area are replaced according to the required proportion to be precisely adjusted. [0003] The first way of prior art is as ...

AI Technical Summary

Problems solved by technology

This state does not reach the energy-saving operation of the pump

When the valve is in the automatic operation state, the maximum flow rate of the primary network in the heat exchange station is subject to the current frequency of the water pump. If the total flow rate of the primary network is less than the flow value that guarantees the water supply temperature in all areas, additional adjustment methods or methods are required to increase the flow rate of the primary network. Manual adjustment, not fully intelligent

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