A heat pump device for a paper machine and a papermaking method
By employing partitioned evaporators and gas-liquid separation technology in the paper machine heat pump unit, the problems of insufficient liquid supply and unstable heat exchange were solved, achieving efficient recovery of wet heat exhaust gas and stable heat exchange effect, thus improving the adaptability and efficiency of the heat pump unit.
CN122408309APending Publication Date: 2026-07-17LIANSHENG PULP & PAPER (ZHANGZHOU) CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- LIANSHENG PULP & PAPER (ZHANGZHOU) CO LTD
- Filing Date
- 2026-06-15
- Publication Date
- 2026-07-17
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Figure CN122408309A_ABST
Abstract
本发明涉及热泵技术领域，尤其涉及一种纸机用的热泵装置及造纸方法技术领域，解决现有热泵装置在应用于纸机气罩分区回收时，易出现供液不足、换热不稳定的问题。本发明包括：分区蒸发器，所述分区蒸发器包括上部换热区以及下部换热区；气液分离腔，用于接收从上部换热区的制冷剂出口流出的气液两相制冷剂，所述气液分离腔开设有气相出口与液相出口；气相回流管路，所述气相出口经气相回流管路连通有压缩机；液相下送管路，所述液相出口经液相下送管路与所述下部换热区的制冷剂入口连通；腔内压力检测件，设于所述气液分离腔内；并根据气液分离腔内压力变化调节单向调节阀、节流阀或压缩机频率，提高热泵装置对纸机湿热排气负荷波动的适应性。
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