CN101858671A - Ground source heat pump system with function of regulating soil temperature - Google Patents
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- 239000002689 soil Substances 0.000 title claims abstract description 54
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical group OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 14
- 238000001816 cooling Methods 0.000 abstract description 10
- 238000010438 heat treatment Methods 0.000 abstract description 7
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- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
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Abstract
具有调节土壤温度功能的土壤源热泵系统,涉及一种土壤源热泵系统,尤其是一种具有调节土壤温度功能的土壤源热泵系统。本发明是为了解决现有的土壤源热泵系统冬夏季冷热负荷不匹配,土壤的年平均温度逐年下降或升高,系统运行效率逐渐降低及不能正常运行的问题。本发明中多个垂直U型地埋管换热器并联且与室外换热装置连通,第一管路上设有第一和第二管路阀门,第二管路上设有第五、第六和第七管路阀门,第五管路上设有第八、第九管路阀门和循环泵二,热泵机组并联在第一和第二管路上,第一和第二管路阀门之间的第三管路上设有第三管路阀门,第六和第七管路阀门之间的第四管路上设有循环泵一和第四管路阀门,本发明适用于为建筑物供暖、制冷及提供生活热水。
A soil source heat pump system with the function of regulating soil temperature relates to a soil source heat pump system, in particular to a soil source heat pump system with the function of regulating soil temperature. The invention aims to solve the problems that the existing soil source heat pump system does not match the cooling and heating loads in winter and summer, the annual average temperature of the soil decreases or increases year by year, the operating efficiency of the system gradually decreases and it cannot operate normally. In the present invention, a plurality of vertical U-shaped buried tube heat exchangers are connected in parallel and communicate with the outdoor heat exchange device. The first and second pipeline valves are arranged on the first pipeline, and the fifth, sixth and second pipeline valves are arranged on the second pipeline. The seventh pipeline valve, the eighth and ninth pipeline valves and circulation pump 2 are installed on the fifth pipeline, the heat pump unit is connected in parallel on the first and second pipelines, the third valve between the first and second pipeline valves A third pipeline valve is provided on the pipeline, and a circulation pump 1 and a fourth pipeline valve are provided on the fourth pipeline between the sixth and seventh pipeline valves. The present invention is suitable for heating, cooling and providing living facilities for buildings. hot water.
Description
技术领域technical field
本发明涉及一种土壤源热泵系统,尤其是一种具有调节土壤温度功能的土壤源热泵系统。The invention relates to a soil source heat pump system, in particular to a soil source heat pump system with the function of regulating soil temperature.
背景技术Background technique
土壤源热泵系统作为节能环保空调技术,在21世纪得到迅速发展,并广泛应用于实际工程中。在实验及实际工程中,土壤源热泵系统普遍存在冬夏季能量不匹配的问题,土壤源热泵系统将夏季的冷凝热转存于土壤中,冬季将这部分能量提取出来进行供暖,常会出现冬季土壤源热泵系统提供不了充足的热量或夏季提供不了充足的冷量,而土壤作为冬夏能量负荷的载体,会出现土壤的年平均温度逐年下降或升高等问题,在长时间运行后,系统的运行效率降低。As an energy-saving and environment-friendly air-conditioning technology, the ground source heat pump system has developed rapidly in the 21st century and is widely used in practical projects. In experiments and actual projects, the soil source heat pump system generally has the problem of energy mismatch in winter and summer. The soil source heat pump system transfers the condensation heat in summer to the soil, and extracts this part of energy for heating in winter. The source heat pump system cannot provide sufficient heat or sufficient cooling in summer, and the soil, as the carrier of energy load in winter and summer, will have problems such as the annual average temperature of the soil dropping or rising year by year. After a long period of operation, the operating efficiency of the system reduce.
发明内容Contents of the invention
本发明的目的是为了解决现有的土壤源热泵系统冬夏季冷热负荷不匹配,土壤的年平均温度逐年下降或升高,系统运行效率逐渐降低甚至导致系统不能正常运行的问题,进而提供了一种具有调节土壤温度功能的土壤源热泵系统。The purpose of the present invention is to solve the problem that the existing soil source heat pump system does not match the cooling and heating loads in winter and summer, the annual average temperature of the soil decreases or increases year by year, and the operating efficiency of the system gradually decreases or even causes the system to fail to operate normally. A soil source heat pump system with the function of regulating soil temperature.
本发明的技术方案是:它包括多个垂直U型地埋管换热器、第一管路、第二管路、第三管路、第四管路、第五管路、室外换热装置和热泵机组,它还包括第一管路阀门、第二管路阀门、第三管路阀门、第四管路阀门、第五管路阀门、第六管路阀门、第七管路阀门、第八管路阀门、第九管路阀门、循环泵一和循环泵二,所述多个垂直U型地埋管换热器并列设置,其中一个垂直U型地埋管换热器的一端通过第一管路与室外换热装置的入口端连通,该垂直U型地埋管换热器的另一端通过第二管路与室外换热装置的出口端连通,其余的垂直U型地埋管换热器的两端分别连接在第一管路和第二管路上,所述室外换热装置的入口端与靠近室外换热装置的垂直U型地埋管换热器之间的管路上从左至右依次设置有第一管路阀门和第二管路阀门,室外换热装置的出口端与靠近室外换热装置的垂直U型地埋管换热器之间的管路上从左至右依次设置有第五管路阀门、第六管路阀门和第七管路阀门,靠近室外换热装置的第五管路阀门的两端并联有第五管路,所述第五管路上依次设置有第八管路阀门、循环泵二和第九管路阀门,所述热泵机组并联在室外换热装置与靠近室外换热装置的垂直U型地埋管换热器之间的管路上,热泵机组的入口端通过第三管路与第一管路连通,第三管路位于第一管路阀门和第二管路阀门之间,热泵机组的出口端通过第四管路与第二管路连通,第四管路位于第六管路阀门和第七管路阀门之间,所述第四管路上设置有循环泵一和第四管路阀门,第三管路上设置有第三管路阀门。The technical solution of the present invention is: it includes a plurality of vertical U-shaped buried tube heat exchangers, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, and an outdoor heat exchange device and the heat pump unit, it also includes the first pipeline valve, the second pipeline valve, the third pipeline valve, the fourth pipeline valve, the fifth pipeline valve, the sixth pipeline valve, the seventh pipeline valve, the Eight pipeline valves, ninth pipeline valves, circulating
本发明具有以下有益效果:本发明通过管路阀门的切换,使得该系统具有土壤源热泵、空气源热泵和调节土壤温度的功能,通过主动调节土壤温度,控制土壤温度的变化范围,保证土壤源热泵长期稳定运行;该发明不仅适用于新系统的设计,还可以应用于对现有土壤源热泵系统的改造,恢复现有系统的效率。The present invention has the following beneficial effects: the present invention enables the system to have the functions of soil source heat pump, air source heat pump and soil temperature adjustment through the switching of pipeline valves, by actively adjusting the soil temperature, the variation range of the soil temperature is controlled, and the soil source is guaranteed The heat pump runs stably for a long time; the invention is not only applicable to the design of new systems, but also can be applied to the transformation of existing soil source heat pump systems to restore the efficiency of the existing systems.
附图说明Description of drawings
图1是本发明的系统结构示意图。Fig. 1 is a schematic diagram of the system structure of the present invention.
具体实施方式Detailed ways
具体实施方式一:结合图1说明本实施方式的具有调节土壤温度功能的土壤源热泵系统,它包括多个垂直U型地埋管换热器1、第一管路A、第二管路B、第三管路C、第四管路D、第五管路E、室外换热装置4和热泵机组5,它还包括第一管路阀门9、第二管路阀门13、第三管路阀门12、第四管路阀门11、第五管路阀门8、第六管路阀门10、第七管路阀门14、第八管路阀门6、第九管路阀门7、循环泵一2和循环泵二3,所述多个垂直U型地埋管换热器1并列设置,其中一个垂直U型地埋管换热器1的一端通过第一管路A与室外换热装置4的入口端c连通,该垂直U型地埋管换热器1的另一端通过第二管路B与室外换热装置4的出口端d连通,其余的垂直U型地埋管换热器1的两端分别连接在第一管路A和第二管路B上,所述室外换热装置4的入口端c与靠近室外换热装置4的垂直U型地埋管换热器1之间的管路上从左至右依次设置有第一管路阀门9和第二管路阀门13,室外换热装置4的出口端d与靠近室外换热装置4的垂直U型地埋管换热器1之间的管路上从左至右依次设置有第五管路阀门8、第六管路阀门10和第七管路阀门14,靠近室外换热装置4的第五管路阀门8的两端并联有第五管路E,所述第五管路E上依次设置有第八管路阀门6、循环泵二3和第九管路阀门7,所述热泵机组5并联在室外换热装置4与靠近室外换热装置4的垂直U型地埋管换热器1之间的管路上,热泵机组5的入口端f通过第三管路C与第一管路A连通,第三管路C位于第一管路阀门9和第二管路阀门13之间,热泵机组5的出口端e通过第四管路D与第二管路B连通,第四管路D位于第六管路阀门10和第七管路阀门14之间,所述第四管路D上设置有循环泵一2和第四管路阀门11,第三管路C上设置有第三管路阀门12。Specific Embodiment 1: The soil source heat pump system with the function of regulating soil temperature in this embodiment is described in conjunction with FIG. 1 , which includes a plurality of vertical U-shaped buried
具体实施方式二:结合图1说明本实施方式的具有调节土壤温度功能的土壤源热泵系统,所述多个垂直U型地埋管换热器1、第一管路A、第二管路B、第三管路C、第四管路D和第五管路E内均充满换热介质。本实施方式的其他组成与连接关系与具体实施方式一相同。Specific Embodiment 2: The soil source heat pump system with the function of adjusting soil temperature in this embodiment is described in conjunction with FIG. , the third pipeline C, the fourth pipeline D and the fifth pipeline E are all filled with heat exchange medium. Other components and connections of this embodiment are the same as those of
具体实施方式三:结合图1说明本实施方式的具有调节土壤温度功能的土壤源热泵系统,所述换热介质为乙二醇溶液。为保证该土壤源热泵系统能够长期稳定运行,控制土壤温度在固定的温度区间内波动,该系统通过多个垂直U型地埋管换热器1中的乙二醇溶液通过室外换热器4与空气换热,从而实现调节温度的目的。在热负荷占优的地区,可以在夏季通过室外换热器4将空气中的热量传递给乙二醇溶液,从而通过多个垂直U型地埋管换热器1将热量储存在土壤中;在冷负荷占优的地区,可以在冬季通过室外换热器4将空气中的冷量传递给乙二醇溶液,从而通过多个垂直U型地埋管换热器1将冷量储存在土壤中,实现了不同负荷条件下系统的能量调节,使系统稳定运行。本实施方式的其他组成与连接关系与具体实施方式一或二相同。Specific Embodiment 3: The soil source heat pump system with the function of adjusting soil temperature according to this embodiment is described with reference to FIG. 1 , and the heat exchange medium is ethylene glycol solution. In order to ensure the long-term stable operation of the soil source heat pump system and control the fluctuation of soil temperature within a fixed temperature range, the system passes the ethylene glycol solution in multiple vertical U-shaped buried
工作原理:working principle:
本发明通过切换管路阀门之间的开启实现调节温度的目的,有以下运行及调节模式:(一)关闭第一管路阀门9与第六管路阀门10,开启第四管路阀门11、第三管路阀门12、第二管路阀门13和第七管路阀门14,热泵机组5与多个垂直U型地埋管换热器1构成回路,实现土壤源热泵的供热和制冷;(二)关闭第四管路阀门11、第三管路阀门12和第五管路阀门8,开启第八管路阀门6、第九管路阀门7、第一管路阀门9、第六管路阀门10、第二管路阀门13和第七管路阀门14,室外换热器4与多个垂直U型地埋管换热器1构成回路,通过室外换热器4实现对土壤温度的调控,从而保持土壤的温度在合理范围内。冬季时,当土壤源热泵提供的热量不能满足热负荷要时,可以通过室外换热器4在夏季将空气热量储存在土壤中,以解决土壤源热泵在冬季供热能力不足的问题,而当夏季土壤源热泵提供的冷量不能满足冷负荷要求的情况下,冬季通过室外换热器4将空气冷量储存在土壤中,达到调控土壤温度的目的;(三)关闭第八管路阀门6、第九管路阀门7、第二管路阀门13和第七管路阀门14,开启第五管路阀门8、第一管路阀门9、第六管路阀门10、第四管路阀门11和第三管路阀门12,室外换热器4与热泵机组5构成回路,此时系统具有空气源热泵的功能,实现对建筑物的供热和制冷,同时可以让土壤温度进行自调节和自恢复;(四)关闭第八管路阀门6和第九管路阀门7,其他管路阀门全部开启,此时室外换热器4和热泵机组5均与地埋管换热器1并联,且室外换热器4与热泵机组5相通,实现了土壤源热泵和空气源热泵的双重功能,通过空气和土壤对建筑物供热或制冷,可以通过调节空气和土壤承担的负荷比例,进而控制土壤温度。The present invention achieves the purpose of temperature adjustment by switching the opening of the pipeline valves, and has the following operation and adjustment modes: (1) close the
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CN110822598A (en) * | 2019-11-21 | 2020-02-21 | 东北大学 | A refrigeration system and refrigeration method based on cross-season cold storage |
CN110822599A (en) * | 2019-11-21 | 2020-02-21 | 东北大学 | Refrigeration system and refrigeration method for season-shift utilization of natural cold source |
CN114739050A (en) * | 2022-04-25 | 2022-07-12 | 珠海格力电器股份有限公司 | Soil supplementary heat component, ground source heat system and control method based on ground source heat system |
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CN110822598A (en) * | 2019-11-21 | 2020-02-21 | 东北大学 | A refrigeration system and refrigeration method based on cross-season cold storage |
CN110822599A (en) * | 2019-11-21 | 2020-02-21 | 东北大学 | Refrigeration system and refrigeration method for season-shift utilization of natural cold source |
CN110822599B (en) * | 2019-11-21 | 2021-05-04 | 东北大学 | Refrigeration system and refrigeration method for seasonally shifting use of natural cold source |
CN114739050A (en) * | 2022-04-25 | 2022-07-12 | 珠海格力电器股份有限公司 | Soil supplementary heat component, ground source heat system and control method based on ground source heat system |
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