To guarantee clean heating of buildings in cold regions, an off-peak electricity driven chemisorption heat pump employing SrCl₂/sulfurized expanded graphite composite sorbent is developed. However, the heat output temperature of chemisorption heat pump fluctuates greatly, up to 30 °C, which seriously restricts its popularization and application. In this paper, the above-mentioned problems are solved from two aspects of sorption bed structure design and system operation strategy. The sorption bed utilized for thermal energy storage is especially composed of several unit reactors, and the asynchronous start-stop control method of unit reactors is innovatively proposed. By controlling their start and stop time, the temperature fluctuation range of hot water that the heat pump outputs is significantly reduced. Simultaneously, to improve the energy efficiency of heat pump, small temperature difference fan coil units are adopted indoors. The results indicate that when ten reactors operate asynchronously, the output temperature of hot water fluctuates by as low as 1.4 °C. With four reactors in asynchronous operation, the temperature fluctuation range can be reduced to 3 °C, and 35 °C hot water enters the small temperature difference fan coil units to release heat to the indoor space. Additionally, the heating performance of the chemisorption heat pump is relatively stable in cold regions. When the evaporating temperature decreases from 5 °C to −15 °C, its energy efficiency is almost constant, about 1.47. Eventually, this chemisorption heat pump can shift electricity from peak periods to off-peak periods, and also saves 0.7 to 6.3 yuan per day in space heating cost in comparison to the conventional vapor-compression one.

_{为保障寒冷地区建筑清洁供暖，采用SrCl 2}的错峰电驱动化学吸附热泵/硫化膨胀石墨复合吸附剂研制成功。但化学吸附热泵的热输出温度波动较大，最高可达30℃，严重制约了其推广应用。本文从吸附床结构设计和系统运行策略两方面解决上述问题。特别是用于蓄热的吸附床由多个单元反应器组成，创新性地提出了单元反应器的异步启停控制方法。通过控制它们的启停时间，显着减小了热泵输出热水的温度波动幅度。同时，为提高热泵能效，室内采用小温差风机盘管机组。结果表明，当10个反应堆异步运行时，热水输出温度波动低至1.4℃。四台电抗器异步运行，温度波动幅度可降至3℃，35℃热水进入小温差风机盘管向室内空间释放热量。此外，化学吸附热泵的制热性能在寒冷地区相对稳定。当蒸发温度从5℃下降到-15℃时，其能量效率几乎不变，约为1.47。最终，这种化学吸附热泵可以将电力从高峰时段转移到非高峰时段，并且与传统的蒸汽压缩热泵相比，每天还可以节省 0.7 至 6.3 元的空间供暖成本。热水出水温度波动低至1.4℃。四台电抗器异步运行，温度波动幅度可降至3℃，35℃热水进入小温差风机盘管向室内空间释放热量。此外，化学吸附热泵的制热性能在寒冷地区相对稳定。当蒸发温度从5℃下降到-15℃时，其能量效率几乎不变，约为1.47。最终，这种化学吸附热泵可以将电力从高峰时段转移到非高峰时段，并且与传统的蒸汽压缩热泵相比，每天还可以节省 0.7 至 6.3 元的空间供暖成本。热水出水温度波动低至1.4℃。四台电抗器异步运行，温度波动幅度可降至3℃，35℃热水进入小温差风机盘管向室内空间释放热量。此外，化学吸附热泵的制热性能在寒冷地区相对稳定。当蒸发温度从5℃下降到-15℃时，其能量效率几乎不变，约为1.47。最终，这种化学吸附热泵可以将电力从高峰时段转移到非高峰时段，并且与传统的蒸汽压缩热泵相比，每天还可以节省 0.7 至 6.3 元的空间供暖成本。温度波动幅度可降至3℃，35℃热水进入小温差风机盘管向室内空间释放热量。此外，化学吸附热泵的制热性能在寒冷地区相对稳定。当蒸发温度从5℃下降到-15℃时，其能量效率几乎不变，约为1.47。最终，这种化学吸附热泵可以将电力从高峰时段转移到非高峰时段，并且与传统的蒸汽压缩热泵相比，每天还可以节省 0.7 至 6.3 元的空间供暖成本。温度波动幅度可降至3℃，35℃热水进入小温差风机盘管向室内空间释放热量。此外，化学吸附热泵的制热性能在寒冷地区相对稳定。当蒸发温度从5℃下降到-15℃时，其能量效率几乎不变，约为1.47。最终，这种化学吸附热泵可以将电力从高峰时段转移到非高峰时段，并且与传统的蒸汽压缩热泵相比，每天还可以节省 0.7 至 6.3 元的空间供暖成本。当蒸发温度从5℃下降到-15℃时，其能量效率几乎不变，约为1.47。最终，这种化学吸附热泵可以将电力从高峰时段转移到非高峰时段，并且与传统的蒸汽压缩热泵相比，每天还可以节省 0.7 至 6.3 元的空间供暖成本。当蒸发温度从5℃下降到-15℃时，其能量效率几乎不变，约为1.47。最终，这种化学吸附热泵可以将电力从高峰时段转移到非高峰时段，并且与传统的蒸汽压缩热泵相比，每天还可以节省 0.7 至 6.3 元的空间供暖成本。