摘要
本文首先回顾了国内外地表水源热泵的研究进展,并对该类空调系统的优势、劣势以及其应用范围进行了分析和总结。通过对重庆地区气候条件、水资源条件、地表水源热泵系统对水源系统要求的分析,认为该系统在重庆地区应用是可行的;通过对长江和嘉陵江的相关水文参数的研究发现:长江和嘉陵江的江水温度常年都在10~25℃间波动,此种温度的水作为水源热泵系统的冷却水是相当节能的。不过,由于两江水的含沙量大都超过了/1200000,浊度也远大于20mg/L。因此对于系统的取水应设置除砂系统和净化系统来确保进入机组的水质达到要求。这些数据的分析为可我国其它冬冷夏热地区应用地表水源空调系统提供基础数据资料和实际经验。
本文还以重庆市开县某水源热泵项目为研究对象,并对该工程项目所使用的水库水温进行了过渡季节和夏季的实地测试,将测试的数据用FLUENT软件进行模拟后发现,水库的水作为该工程地表水源热泵的冷热源热汇是可行的,相对于传统空调也是节能的。
本文的第四章从地表水源热泵输水系统出发,介绍了输水系统的基本形式,分析了三种常见的取水构筑物的形式及其优缺点。并从工程造价的角度出发,分析了水源热泵系统给水管路的水头损失、最佳输水管径的优化、多台水泵联合运行的优化以及泵转速随水位变化的关系式。
最后,为了判断某一建筑采用地表水源热泵系统的节能性,本文利用VISUAL BASIC语言编写了一个简单的分析空调经济性的软件,这为避免用户盲目地选择机组提供了可视化和实用的界面。该软件对水源热泵系统、风冷热泵系统和冷水机组+热水锅炉系统的初投资费用、年运行费用等进行了经济性分析,结果表明,地表水源热泵相对于其它两种系统在全年有26.64%和47.75%的节能效果。
First, the development of the SWHPs is reviewed, the advantages and the disadvantages of SWHPs are related .According to analyzing the Chongqing regional climate condition, the water resources condition, the requested water source to the surface water heat pumps(SWHP), we think SWHP are used in theChongqing is feasible; After studying Yangtze River and Jialing River's related hydrology parameter, we discover Yangtze River and Jialing River'sriver water temperature year to year all undulates in 10~25℃, this kind of temperature water is quite energy-saving as the SWHPs system cooling water. However, as two river water’s silt contents have mostly surpassed/1200000, the turbidity also is bigger than 20mg/L. Therefore, it requires the granulated substance system and the purification systemguarantees to make sure the water quality to meet the requirements.These analyzed data provide the foundation data material and the practical experience for may our country of the cold in winter and hot in summer area
Taking an SWHP project in Kaixian city, Chongqing province as an example, the performance of SWHP is investigated in this thesis and the reservoir watertemperature which uses for this engineering project has carried on thetransition season and the summer really tests, the test data will be simulated by FLUENT software.The reservoir water took this project surface water source heat pump the cold and heat source is feasible, this system also is the energy-saving.
The article embarked from the surface water sourceheat pump water - carrige system, introduced the water - carrigesystem fundamental mode in the fourth chapter, analyzed three kinds common water-construction form and its the advantage and disadvantage, and embarked from the angle of project construction cost. The watersource heat pump system for the water pipeline loss of head, the bestwater distribution caliber optimization, many water pumps unionmovement optimization as well as pumps’rotational speed along withthe water level change relational type have been analyzed.
Finally, in order to judge some construction’s energy-saving characteristics which use SWHP, a simple air conditioning efficient-analyzing software is compiled by using the VISUAL BASIC language, the users can avoid choosing the air-conditioning system blindly. This software is used for comparing the investigation fees and the running fees of SWHPs system, ASHPs system and Cold water units +Hot water boiler system. It is concluded that SWHPs can save 26.64%of energy per year than ASHPs, 47.75% than Cold water units +Hot water boiler which indicated the SWHPs are superior to the other two systems.
引文
[1] 何天祺主编.供暖通风与空气调节.重庆: 重庆大学出版社, 2002.3
[2] Enstrom. Some experience of heat pump in district heating networks. In Proceedings of 16th International Congress of Refrigeration. Paris, 1983, 25-30
[3] J.A. Pietsch, Water-loop heat pump systems assessment, ASHRAE Trans. 96 (1990) 1029-1038.
[4] 龙惟定. 试论我国暖通空调业的可持续发展.暖通空调, 1999, 29(3): 25-30.
[5] 万恒制冷空调网. 风冷热泵与水源热泵制冷供暖方案比较. http://www.zhileng.com/jszt/ syrb/ syrb001.htm, 1999/2005
[6] 李先瑞, 刘笑.水源热泵与未利用能[A]全国暖通空凋制冷 2000 年学术年会, 2000:122-126
[7] 孙殿军,郄振生,刘春旭. 水源热泵在实际应用中的浅析[A] . 黑龙江电力, 2005.4
[8] 常继彬. 水源热泵循环经济指标的 logp 一 h 图分析. 重庆工商大学学报(自然科学版), 2006, 2: 94-95
[9] ASHRAE. ASHRAE Handbook-Applications[M].1999
[10] 丁爱军, 高翔. 水源热泵空调系统设计中若干技术问题的探讨[A].全国暖通空调制冷 2000年学术年会论文集.C1, 2000:326-329
[11] 高小青.安装浅谈水源热泵空调系统的优缺点. 安装2005.8: 30-32
[12] Chen Chao, Zhen NI, Li Xiao-ring, et al. Applications of closed-loop water-source heat-pump air-conditioning system to residential buildings[J]. Heat Ventilate Air Condition 2004; 34(6): 72-7
[13] E.A. Kush, Detailed field study of a water-loop heat pump system, ASHRAE Trans. 96 (1990) 1048-1063
[14] S.W. Lang, W. Xu, T.S. Feng, Issues of design and application of the centralized air conditioning system with water source heat pump units, J. HVAC 26 (1) (1996) 15-19
[15] P. Tim, W.S. Joyce. Lake-source cooling [J]. ASHRAE Journal, 2002, 44 (4). 37-39
[16] T. Davey. Deep lake water cooling a matter of degrees [J].Environmental Science Engineering, 2003 (9): 121-133
[17] Bttyttkalaca O, Ekinci F, Yilmaz T. Experimental investigation of Seyhan River and dam lake as heat source (sink) for a heat pump. Energy, 2003, 28: 157-169
[18] 刘光远, 陈兴华.俄罗斯热泵新技术简介.能源研究与利用 2001 ,7(3) : 17-19
[19] JARN Ltd. A new river water source heat pump project. Japan Air Conditioning, Heating & Refrigeration News, 1996-08-25
[20] Kavanaugh S P. Design considerations for ground and water source heat pumps in southernclimates. ASHRAE Transactions, 1989, 95(1): 1139-1149
[21] Kavanaugh S P, Woodhouse J G, Carter J R. Test results of water-to-air heat pumps with high cooling efficiency for ground-coupled applications. ASHRAE Transactions. 1991 .97:895-901
[22] Kavanaugh S P, Pezent M C. Lake water applications of water-to-air heat pumps. ASHRAE Transactions, 1990, 96(1):813-820
[23] ASHRAE. American Inc, 1992 Systems and equipment handbookSociety of Heating, Refrigerating, and173-176(SI) [Chapter 47]. Atlanta:Air-Conditioning Engineers
[24] A. L.Snijders. Aquifer Seasonal Cold Storage for Space Conditioning: Some Cost-effective Applications. ASHRAE Transactions 1992: 11-3
[25] F. Wang, Discussions on the design of the air conditioning system with water source heat pump units, Building Energy Environ. (4) (1996) 40-44
[26] H.I. Henderson, S.W. Carlson, M.K. Khattar, et al., The implications of the measured performance of variable flow pumping systems in geothermal and water loop heat pump applications, ASHRAE Trans. 106 (2000) 533-542
[27] Heavener. Heating and Cooling System Using Groundwater. United States Patent: 4427055, 1984-01-24
[28] 吕灿仁, 马一太.运用热泵提高低温地热采暖系统能源利用率的分析.天津大学学报, 1982: 117-121
[29] 王勇, 付祥钊等. 地源热泵地下管群换热器设计施工问题. 建筑热能通风空调 2001 (1) : 59-62
[30] 孙德兴,吴荣华等.开发水源技术解决热泵发展的瓶颈问题. 暖通专题 2006 (5) : 30-32
[31] 喻李葵, 刘婷婷等. 地表水源热泵空调系统供暖模式优化方法[J] .制冷与空调,2004, 8: 1-4
[32] 中国能源网.关于第一批可再生能源建筑应用示范项目的公示. http://www.china5e.com/ news/newpower/200612/200612080053.html, 1999/2005
[33] 王凡.水源热泵空调系统设计探讨[J ] .通风除尘, 1996, 40-41
[34] 彭建,赵鹏军.重庆市的地理背景与区域发展研究[J ].地理学与国土研究, 2000, 8(3)
[35] 罗鉴银,谢世友.重庆市水资源供需预测[J] .西南师范大学学报(自然版),2002,8(4)
[36] 重庆市 2005 年水资源公报
[37] 叶闽, 陈惠敏.一维垂向水温分布模型在隔河岩水库中的应用与检验.水资源保护, 2001, 2: 19-22
[38] 锦州阳光科技发展有限公司网.水位自动记录仪介.http://www.jz322.com/x4.asp, 1999/2005
[39] 上海君达仪器网.红外线测温仪原理. http:// www.8617.cn/viewnews.php?infoid=50
[40] 韩占忠、王敬等.FLUENT 流体工程仿真计算实例与应用[M].北京: 北京理工大学出版社, 2004: 19-20
[41] 徐伟, 郎四维.地源热泵工程技术指南[M].北京: 中国建筑工业出版社, 2001: 15-17
[42] 现代分析监测. 旋流除砂器工作原理介绍. http://www.cnenv.com/quan/read.asp? qid= 1010&class=1&id=8425
[43] 上海沐泽水处理技术有限公司网. 综合水处理器介绍. http:// muze.b2b.hc360.com/product/ 2668814.ht
[44] 任世瑶, 项成林等.优化流体输送系统 提高系统运行效率[J].能源效率, 2005, 3: 134-136
[45] 伊学农、任群等.给水排水管网工程设计优化与运行管理[M].北京: 化学工业出版社, 2007: 42-65
[46] 陶耕田.荆山水厂取水构筑物形式的确定[J].中国农村水利水电, 2000, 8: 44-45
[47] 蔡龙俊, 李新蕊.水源热泵空调系统的特点及设计方法[J].工程设计, 2005, 1: 39-42
[48] 蔡增基, 龙天渝.流体力学泵与风机[M].中国建筑工业出版社, 1999, 12: 91-102
[49] 张纯杰.以最经济输水为原则调整高压输水泵及工艺[J].石油化工环境保护, 2002, 2: 57-60
[50] 杨群豪. 谈水泵的合理选型[J].机械工程师, 1999, 5: 30-33
[51] 王云海, 俞国平. 给水管网水力模型校正的一种新方法[J].2004, 8: 61-65
[52] 秦红.空调系统的地表水利用及其节能和环境影响分析.全国暖通空调制冷 1998 年会学术文集. 1998
[53] 龙恩深.冷热源工程[M]. 重庆大学出版社, 2004, 8: 58-65