Building heat exchange unit with fused salt energy storage and heat supply system and regulation and control method of building heat exchange unit

Abstract

The invention discloses a building heat exchange unit with a fused salt energy storage and heat supply system and a regulation and control method of the building heat exchange unit. The method comprises the steps that S1, an existing building heat exchange unit is transformed, and a fused salt heat exchanger and an electric heating box are additionally arranged on the secondary side; S2, a heat exchange unit heat supply system operation module is established for the heat exchange unit transformed in S1; S3, a fused salt heat supply module is established; S4, a heat supply module of the electric heating box is established; and S5, a heat exchange unit heat supply system operation analysis module is established for the heat supply system operation analysis model established in S2. The operation condition is judged according to the secondary supply and return water average temperature; the fused salt heat supply module is selected, and then the electric heating box heat supply module is selected according to the heat supply condition of the fused salt heat supply module; and operation is performed according to S2 until the secondary supply and return average temperature meets the requirement. On the basis of a multi-energy complementary cooperation strategy, by means of the industrial internet and cloud regulation and control, accurate and rapid heat compensation of the building is achieved through the fused salt heat supply module; accurate heat supply and on-demand heat supply at the tail end are achieved.

Description

technical field [0001] The invention relates to a heat supply system, in particular to a building heat exchange unit with a molten salt energy storage heat supply system and a control method thereof. Background technique [0002] The building heat exchange mode can use a building or a building with the same thermal characteristics as a heating unit, lead the primary network pipe to the front of the building, and connect it to the building heat exchange unit (station), which can reduce the heating radius and reduce the The hysteresis of the secondary network realizes the decoupling of inter-building regulation and in-building regulation, making the regulation more flexible and precise, and reducing the cost of laying the heating pipe network. However, the scope of the primary network will be enlarged due to the introduction of the primary network pipes to the front of the building, and due to the uneven distribution of heat sources or insufficient hydraulic control, some prim...

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Problems solved by technology

However, the scope of the primary network will be enlarged due to the introduction of the primary network pipes to the front of the building, and due to the uneven distribution of heat sources or insufficient hydraulic regulation, some primary heating pipe networks at the remote end cannot provide sufficient heat for the building. To solve this problem, the primary network adjustment needs to increase the load of the entire heating system. On the one hand, it will cause waste of heat energy. On the other hand, the primary network adjustment has a large lag, and it is difficult to solve the problem of insufficient heating for these users in a timely and accurate manner.

[0003] In the prior art, there are auxiliary heat sources used in the secondary network to cope with extreme weather conditions; for example, "building heat exchange unit heating system (CN206831644U)", in which the thermal energy generated by the auxiliary heat source often exceeds the building heat exchange The required heat energy is likely to cause waste of electric energy during long-term use; the second is that its solution can only be used for peak regulation in extreme weather, and cannot be used when the heat source fails and the load is reduced; the third is that its technology The auxiliary heat source uses water as the heat storage medium with high heat density, and the installation of the water storage tank occupies a large area

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