双缸滚动转子式压缩机采暖热泵低温制热性能

doi:10.11949/0438-1157.20190247

化工学报 ›› 2019, Vol. 70 ›› Issue (S2): 220-227.DOI: 10.11949/0438-1157.20190247

双缸滚动转子式压缩机采暖热泵低温制热性能

尹应德^1,^2,³(),朱冬生^1,^2,³,刘世杰^1,^2,³,叶周^1,^2,³,王飞扬^1,^2,³

1. 中国科学院广州能源研究所, 广东广州 510640
2. 中国科学院可再生能源重点实验室, 广东广州 510640
3. 广东省新能源和可再生能源研究开发与应用重点实验室，广东广州 510640

收稿日期:2019-03-18 修回日期:2019-06-14 出版日期:2019-09-06 发布日期:2019-09-06
通讯作者: 尹应德
作者简介:尹应德（1978—），男，博士，工程师，yinyd@ms.giec.ac.cn
基金资助:
湖北省中国科学院科技合作专项项目(2018-916-000-009);中国科学院可再生能源重点实验室基金项目;2017佛山市顺德区科技计划项目;2017容桂科技计划项目(容桂经发〔2017〕27号)

Heating performance of space heating heat pump based on dual-cylinder rotary compressor in ultra-low temperature

Yingde YIN^1,^2,³(),Dongsheng ZHU^1,^2,³,Shijie LIU^1,^2,³,Zhou YE^1,^2,³,Feiyang WANG^1,^2,³

1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China
2. CAS Key Laboratory of Renewable Energy, Guangzhou 510640, Guangdong, China
3. Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, Guangdong, China

Received:2019-03-18 Revised:2019-06-14 Online:2019-09-06 Published:2019-09-06
Contact: Yingde YIN

摘要/Abstract

摘要：

对双缸滚动转子式压缩机采暖热泵在环境温度（T_od）为-30～0℃，出水温度（T_wo）为41～50℃范围内的制热进行测试。研究表明：外界环境温度对排气温度、蒸发温度影响很大，对冷凝温度影响很小；热水出水温度对冷凝温度影响很大，对排气温度、蒸发温度影响很小。随着外界环境温度的降低，采暖热泵的制热量急剧下降，当T_wo=41℃时，T_od从0℃下降到-30℃，制热量的降幅达62.16%；随着出水温度的升高，采暖热泵的制热量下降缓慢，当T_od=0℃时，T_wo从41℃上升到45℃，制热量降幅仅为5.61%；外界环境温度对COP_h值的影响也显著，当T_wo=41℃时，T_od从0℃下降到-30℃，COP_h值从2.94下降到1.38，降幅达53.06%。双缸滚动转子式压缩机采暖热泵应用于-30～0℃的低温工况下，具有良好的实用价值。

关键词: 低环境温度, 采暖热泵, 传热, 压缩机, 相变, 性能系数

Abstract:

The heating performance of space heating heat pump (SHHP) with dual-cylinder rotary compressor was tested at low ambient temperature (T_od) in the range of -30—0℃, and water outlet temperature (T_wo) in the range of 41—50℃. The results show that ambient temperature has great influence on its discharge temperature and evaporating temperature, but little on condensing temperature; hot water outlet temperature has great influence on its condensing temperature, and little influence on its discharge temperature and evaporating temperature. With the decrease of ambient temperature, the heat capacity of SHHP decreases sharply, when T_wo = 41℃, T_od decreases from 0℃ to -30℃, and the heat capacity decreases by 62.16%. With the increase of outlet temperature, the heat capacity of SHHP decreases slowly, when T_od = 0℃, T_wo rises from 41℃ to 45℃, the heat capacity decreases by only 5.61%. The influence of ambient temperature on COP_h value is also obvious, when T_wo = 41℃, T_od decreases from 0℃ to -30℃, COP_h decreases from 2.94 to 1.38, a drop of 53.06%. The SHHP with dual-cylinder rotary compressor has good practical value to be applied in low temperature condition of -30—0℃.

Key words: low ambient temperature, space heating heat pump, heat transfer, compressor, phase change, coefficient of performance

中图分类号:

TB 61⁺5

尹应德, 朱冬生, 刘世杰, 叶周, 王飞扬. 双缸滚动转子式压缩机采暖热泵低温制热性能[J]. 化工学报, 2019, 70(S2): 220-227.

Yingde YIN, Dongsheng ZHU, Shijie LIU, Zhou YE, Feiyang WANG. Heating performance of space heating heat pump based on dual-cylinder rotary compressor in ultra-low temperature[J]. CIESC Journal, 2019, 70(S2): 220-227.

图/表 10

图1 双缸滚动转子式压缩机的剖面

Fig.1 Profile diagram of dual-cylinder rotary compressor1—exhaust tube；2—shell；3—stator；4—rotor；5—crank axle；6—cylinder 1；7—baffle；8—cylinder 2；9—suction tube；10—oil container

图2 测试系统

Fig.2 Schematic diagram of experimental setup

表1 实验测试工况

Table 1 Experiment conditions

Operating mode (heating)	Outdoor
Operating mode (heating)	T_db/℃	T_wb/℃
Case 1	0	-3
Case 2	-6	-8
Case 3	-12	-14
Case 4	-20	—
Case 5	-25	—
Case 6	-30	—

表2 名义工况性能测试

Table 2 Performance test of nominal working conditions

Operating mode

Outdoor

Heating water outlet

T_wo/℃

图3 排气温度随干球温度和出水温度变化

Fig.3 Variation of discharge temperature with outdoor temperature and water outlet temperature

图4 蒸发温度随干球温度和出水温度变化

Fig.4 Variation of evaporating temperature with outdoor temperature and water outlet temperature

图5 冷凝温度随干球温度和出水温度变化

Fig.5 Variation of condensing temperature with outdoor temperature and water outlet temperature

图6 制热能力随干球温度和出水温度变化

Fig.6 Variation of heating capacity with outdoor temperature and water outlet temperature

图7 消耗功率随干球温度和出水温度变化

Fig.7 Variation of consumed power with outdoor temperature and water outlet temperature

图8 COP值随干球温度和出水温度变化

Fig.8 Variation of COP with outdoor temperature and water outlet temperature

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双缸滚动转子式压缩机采暖热泵低温制热性能

Heating performance of space heating heat pump based on dual-cylinder rotary compressor in ultra-low temperature

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