33results about How to "High heating reliability" patented technology

The invention relates to the technical field of air conditioners, and provides a multi-mode water-circulation multi-split air-conditioning system. The multi-mode water-circulation multi-split air-conditioning system comprises a plurality of air-conditioner units, a second circulating pump, a stop valve and a natural energy acquisition device. Each air-conditioner unit comprises a plurality of indoor heat exchangers. The indoor heat exchangers of each air-conditioner unit are three-medium heat exchangers each provided with an indoor first medium channel and an indoor second medium channel. Thefirst ends of all the indoor second medium channels communicate with a first main pipe, and the second ends of all the indoor second medium channels communicate with a second main pipe. An outlet of the natural energy acquisition device communicates with the first main pipe through a first circulating pump, and an inlet of the natural energy acquisition device communicates with the second main pipe. An inlet of the second circulating pump communicates with the first main pipe, and an outlet of the second circulating pump communicates with the second main pipe. The stop valve is arranged on thefirst main pipe. An outlet of the first circulating pump is located in the inlet side of the stop valve, and the inlet of the second circulating pump and the first end of all the indoor second mediumchannels are located on the outlet side of the stop valve. According to the multi-mode water-circulation multi-split air-conditioning system, the air-conditioner units can stably and efficiently operate all year round.

The invention discloses a cascade heat accumulating and supplying system. The cascade heat accumulating and supplying system comprises a cascade heat-exchanging loop and a heat-supplying loop, whereinthe cascade heat-exchanging loop is composed of a cascade heat-exchanging circulating pump, a high-temperature heat-accumulating module and a transitional constant-current heat accumulating and exchanging module which are sequentially connected through a cascade heat-exchanging circulating pipeline, and the heat-supplying loop is composed of the transitional constant-current heat accumulating andexchanging module and a heat-supplying circulating pump which are sequentially connected through a heat-supplying pipeline; the high-temperature heat-accumulating module comprises a high-temperatureheat accumulator which is internally provided with a heat-exchanging pipeline; both the inlet end and the outlet end of the heat-exchanging pipeline are connected with the cascade heat-exchanging circulating pipeline; the transitional constant-current heat accumulating and exchanging module comprises a medium-and-low-temperature phase-change heat accumulator which is internally provided with a plurality of heating heat-exchanging pipes and heat-releasing heat-exchanging pipes, and both the inlet ends and the outlet ends of the heating heat-exchanging pipes are connected with the cascade heat-exchanging circulating pipeline; both the inlet ends and the outlet ends of the heat-releasing heat-exchanging pipes are connected with the heat-supplying pipeline; and circulating heat transfer substances are arranged in the cascade heat-exchanging circulating pipeline and the heat-supplying pipeline correspondingly, and heat using equipment is arranged between the transitional constant-current heat accumulating and exchanging module and the heat-supplying circulating pump. The cascade heat accumulating and supplying system is large in heat accumulation amount and stable in power supplying.

The invention discloses a robust optimization scheduling method for a regional integrated energy system, and belongs to the related technical field of regional integrated energy system scheduling, and the method comprises the specific steps: constructing a partial load performance function of the efficiency of each energy conversion device; constructing a regional comprehensive energy system model; constructing constraint conditions of the regional integrated energy system; constructing an optimal scheduling model; constructing a robust optimization scheduling model, and solving the robust optimization scheduling model to obtain an optimal scheduling scheme of the regional integrated energy system; and performing optimal scheduling on the regional integrated energy system according to the optimal scheduling scheme. According to the method, the box type uncertain set is adopted to effectively describe the fitting error and the range of the partial load performance function of the equipment, the the fitting error and the range of the partial load performance function of the equipment are applied to the optimization model, the system scheduling scheme is changed, the system operation robustness is improved, and the heat supply reliability is improved.