Highly-stable anticorrosion complete set heat supply system

Abstract

The invention discloses a highly-stable anticorrosion complete set heat supply system comprising an indirect supply primary system and an indirect supply secondary system. Jet pumps are added to primary side water supply pipes of all heat exchange stations of the indirect supply primary system or are added to primary side water supply pipes of heat exchangers of all compound heat exchange sets in the heat exchange stations; and by employing the jet pumps, a part of primary backwater is absorbed back to the primary water supply pipes, then is mixed with the primary supply water, and finally enters the heat exchangers. An anticorrosion water mixing pipe is added between a boiler outlet main pipe and a primary backwater main pipe. The indirect supply secondary system is connected to the secondary ends of the heat exchangers. The indirect supply secondary system mainly comprises no-power mixing water heat exchange stations established for all heat user buildings, and jet pumps added at heating power entrances of all the heat user buildings; and by employing the jet pumps, a part of secondary backwater is absorbed back to the secondary water supply pipes, then is mixed with the secondary supply water, and finally enters the heat user buildings. The invention also provides a direct supply system. According to the invention, the stability of heat supply network waterpower can be improved, a waterpower unbalance problem is solved, the quality of heat supply is improved, the energy consumption of the heat supply system is reduced, and a boiler can be prevented from low-temperature corrosion.

Description

technical field [0001] The invention relates to a complete set of central heating technology and belongs to the field of energy technology. Background technique [0002] 1. Status quo of heating industry [0003] (1) Serious waste of energy [0004] The hydraulic imbalance of the existing heating system is an important reason for the uneven heating and cooling of the existing heating system, and it is also a long-standing problem that still plagues the heating industry. Some are as high as 40-50%; the waste of electric energy caused by it is generally 20-40%, and some are as high as 50-70%. [0005] (2) Single operating mode [0006] The existing heating system, whether it is an intermittent primary system, an intermittent secondary system, or a direct supply system, all adopt the "large flow rate and small temperature difference" operating mode. The existing primary supply system, the water flow per unit area is generally about 0.8 ~ 1.5kgH 2 0. The temperature of prim...

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Problems solved by technology

[0049] In view of the above problems, the purpose of the present invention is to provide a high stability and anti-corrosion complete heating system to solve the technical problems of the complete heating system, such as improving the hydraulic stability of the heating network, reducing the difficulty of debugging and hydraulic imbalance; Quality, so that the room temperature of the heat user tends to be uniform, reduce the energy consumption of the heating system, and avoid low-temperature corrosion of the boiler

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