Energy-saving zone heating system

Abstract

The invention discloses an energy-saving zone heating system. The energy-saving zone heating system is mainly composed of a plate type heat exchanger, a water supplement variable frequency pump, a circulating pump, a first heating zone, a second heating zone, an outdoor temperature sensor and a control cabinet. A primary side connector of the plate type heat exchanger is connected with a primary water supply pipe and a primary water returning pipe, and a balance adjusting valve is arranged on the primary water returning pipe; a fourth temperature is arranged at the position, in front of the balance adjusting valve, of the primary water returning pipe, and a third temperature sensor is arranged at the position, behind the balance adjusting valve, of the primary water returning pipe; a first zone heating water supply pipe is further arranged at the position, in front of the balance adjusting valve, of the primary water returning pipe and is connected with the first heating zone; and the first heating zone is connected with the primary water returning pipe through a first zone heating water returning pipe. The energy-saving zone heating system has the beneficial effects that primary hot water heat exchange and primary water returning waste heat are utilized for indirect zone heating and direct zone heating, land occupation and investment are saved, the heat energy utilization rate is improved, the running cost is reduced, and energy saving and emission reduction are facilitated.

Description

technical field [0001] The invention relates to the technical field of energy-saving heating, in particular to an energy-saving district heating system. Background technique [0002] Conventional heating systems are generally equipped with a hot water heat exchange station, and the hot water heat exchange station passes the primary hot water through the heat exchanger for heat exchange, and then returns it to the municipal heating return pipe network through the primary return pipe, but the temperature of the primary return pipe is average. In the range of 40°C to 60°C, and this temperature range is more suitable for the water temperature requirements of floor radiant heating. If the hot water in the primary return pipe is directly returned, the energy of the primary hot water cannot be effectively and fully utilized, resulting in high operating costs for thermal energy. , is also not conducive to energy saving and emission reduction. Contents of the invention [0003] Th...

AI Technical Summary

Problems solved by technology

[0002] Conventional heating systems are generally equipped with a hot water heat exchange station, and the hot water heat exchange station passes the primary hot water through the heat exchanger for heat exchange, and then returns it to the municipal heating return pipe network through the primary return pipe, but the temperature of the primary return pipe is average. In the range of 40°C to 60°C, and this temperature range is more suitable for the water temperature requirements of floor radiant heating. If the hot water in the primary return pipe is directly returned, the energy of the primary hot water cannot be effectively and fully utilized, resulting in high operating costs for thermal energy. , is not conducive to energy saving and emission reduction

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