Main-auxiliary type multi-heat-source series-connection grid-connected heating device

Abstract

The invention relates to the technical field of heating devices, in particular to a main-auxiliary type multi-heat-source series-connection grid-connected heating device. The main-auxiliary type multi-heat-source series-connection grid-connected heating device comprises a main heat source and at least one auxiliary heat source. One-way valves are arranged on a primary water return pipeline. Water inlets of the auxiliary heat sources communicate with the parts, on the outer sides of the one-way valves, of the primary water return pipeline. Water outlets of the auxiliary heat sources communicate with the parts, on the inner sides of the one-way valves, of the primary water return pipeline. A water inlet of the main heat source communicates with the part, on the inner sides of the one-way valves, of the primary water return pipeline. A water outlet of the main heat source communicates with a primary water supply pipeline. Auxiliary circulating pumps are arranged on pipelines between the water inlets of the auxiliary heat sources and the parts, on the outer sides of the one-way valves, of the primary water return pipeline. A main circulating pump is arranged on a pipeline between the water inlet of the main heat source and the part, on the inner sides of the one-way valves, of the primary water return pipeline. According to the main-auxiliary type multi-heat-source series-connection grid-connected heating device, the multiple heat sources are connected to a grid in series, the auxiliary heat sources only heat one side of the primary water return pipeline, a boiler is started and stopped according to the system heat requirement, the heat power of the boiler is fully used, and the purposes of regulating the peak, achieving standby application and increasing the utilization rate of the heat sources are realized.

Description

technical field [0001] The invention relates to the technical field of heating devices, and relates to a primary and auxiliary multi-heat source series-connected grid-connected heating device. Background technique [0002] Due to the low temperature in winter in cities and towns in northern my country, central heating is generally used in winter. In order to avoid large horse-drawn carts in the boiler room during the initial construction, resulting in waste of energy consumption, the installed capacity of the designed heat source is basically based on the existing building area plus the reserved planning margin. With the rapid development of the country's urbanization construction, the load of the original boiler room can no longer meet the demand, so a new boiler room can only be built. Restricted by the site, region, and environmental protection, it is generally chosen to build a new boiler room with a large installed capacity next to the original site, or to build a boil...

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Problems solved by technology

[0003] The present invention provides a primary and auxiliary multi-heat source series-connected grid-connected heating device, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem that the new and old boiler rooms in the existing central heating system operate independently and are not connected to the Internet. No peak shaving and backup functions, great waste of heat source resources and human resources, unable to meet energy conservation and environmental protection requirements

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