CN101858671A - Ground source heat pump system with function of regulating soil temperature - Google Patents

Ground source heat pump system with function of regulating soil temperature Download PDF

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CN101858671A
CN101858671A CN 201010199375 CN201010199375A CN101858671A CN 101858671 A CN101858671 A CN 101858671A CN 201010199375 CN201010199375 CN 201010199375 CN 201010199375 A CN201010199375 A CN 201010199375A CN 101858671 A CN101858671 A CN 101858671A
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pipeline
valve
pipeline valve
heat pump
soil
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CN101858671B (en
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倪龙
牛福新
董菲
姚杨
马最良
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Harbin Institute of Technology Shenzhen
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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。

Figure 201010199375

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.

Figure 201010199375

Description

具有调节土壤温度功能的土壤源热泵系统 Ground source heat pump system with function of regulating soil temperature

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 pump 1 and circulating pump 2, the multiple vertical U-shaped buried tube heat exchangers are arranged side by side, and one end of one vertical U-shaped buried tube heat exchanger passes through the second One pipeline communicates with the inlet end of the outdoor heat exchange device, the other end of the vertical U-shaped buried tube heat exchanger communicates with the outlet end of the outdoor heat exchange device through the second pipeline, and the remaining vertical U-shaped buried tubes exchange The two ends of the heat exchanger are respectively connected to the first pipeline and the second pipeline, and the pipeline between the inlet end of the outdoor heat exchange device and the vertical U-shaped buried tube heat exchanger close to the outdoor heat exchange device is from left to right. From left to right, the first pipeline valve and the second pipeline valve are arranged in turn, and the pipeline between the outlet end of the outdoor heat exchange device and the vertical U-shaped underground pipe heat exchanger close to the outdoor heat exchange device is sequentially arranged from left to right. The fifth pipeline valve, the sixth pipeline valve and the seventh pipeline valve are provided, and the fifth pipeline is connected in parallel with the two ends of the fifth pipeline valve close to the outdoor heat exchange device, and the fifth pipeline is sequentially provided with Eighth pipeline valve, circulation pump two and ninth pipeline valve, the heat pump unit is connected in parallel on the pipeline between the outdoor heat exchange device and the vertical U-shaped underground pipe heat exchanger close to the outdoor heat exchange device, the heat pump unit The inlet end of the heat pump unit communicates with the first pipeline through the third pipeline, the third pipeline is located between the valve of the first pipeline and the valve of the second pipeline, and the outlet end of the heat pump unit communicates with the second pipeline through the fourth pipeline , the fourth pipeline is located between the sixth pipeline valve and the seventh pipeline valve, the fourth pipeline is provided with a circulation pump 1 and the fourth pipeline valve, and the third pipeline is provided with a third pipeline valve.

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 tube heat exchangers 1 , a first pipeline A, and a second pipeline B , the third pipeline C, the fourth pipeline D, the fifth pipeline E, the outdoor heat exchange device 4 and the heat pump unit 5, it also includes the first pipeline valve 9, the second pipeline valve 13, the third pipeline Valve 12, fourth pipeline valve 11, fifth pipeline valve 8, sixth pipeline valve 10, seventh pipeline valve 14, eighth pipeline valve 6, ninth pipeline valve 7, circulation pump one 2 and Circulation pump two 3, the plurality of vertical U-shaped buried tube heat exchangers 1 are arranged side by side, one end of one vertical U-shaped buried tube heat exchanger 1 passes through the first pipeline A and the entrance of the outdoor heat exchange device 4 The other end of the vertical U-shaped buried tube heat exchanger 1 communicates with the outlet end d of the outdoor heat exchange device 4 through the second pipeline B, and the two ends of the remaining vertical U-shaped buried tube heat exchanger 1 The pipes between the inlet end c of the outdoor heat exchange device 4 and the vertical U-shaped underground pipe heat exchanger 1 close to the outdoor heat exchange device 4 are respectively connected to the first pipeline A and the second pipeline B. The first pipeline valve 9 and the second pipeline valve 13 are arranged in sequence from left to right on the road. The outlet d of the outdoor heat exchange device 4 is connected to the vertical U-shaped buried tube heat exchanger 1 close to the outdoor heat exchange device 4. The fifth pipeline valve 8, the sixth pipeline valve 10 and the seventh pipeline valve 14 are sequentially arranged on the pipeline between them from left to right, and the two ends of the fifth pipeline valve 8 close to the outdoor heat exchange device 4 are connected in parallel. The fifth pipeline E, the fifth pipeline E is provided with the eighth pipeline valve 6, the circulation pump 2 3 and the ninth pipeline valve 7 in sequence, and the heat pump unit 5 is connected in parallel between the outdoor heat exchange device 4 and the On the pipeline between the vertical U-shaped underground tube heat exchangers 1 of the outdoor heat exchange device 4, the inlet port f of the heat pump unit 5 communicates with the first pipeline A through the third pipeline C, and the third pipeline C is located at the first Between the first pipeline valve 9 and the second pipeline valve 13, the outlet end e of the heat pump unit 5 communicates with the second pipeline B through the fourth pipeline D, and the fourth pipeline D is located between the sixth pipeline valve 10 and the second pipeline. Between the seven pipeline valves 14, the fourth pipeline D is provided with a circulating pump 1 and a fourth pipeline valve 11, and the third pipeline C is provided with a third pipeline valve 12.

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 Embodiment 1.

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 pipe heat exchangers 1 through the outdoor heat exchanger 4 Exchange heat with air to achieve the purpose of adjusting temperature. In the area where the heat load is dominant, the heat in the air can be transferred to the ethylene glycol solution through the outdoor heat exchanger 4 in summer, so that the heat can be stored in the soil through multiple vertical U-shaped buried pipe heat exchangers 1; In areas where the cooling load is dominant, the cold energy in the air can be transferred to the glycol solution through the outdoor heat exchanger 4 in winter, so that the cold energy can be stored in the soil through multiple vertical U-shaped buried tube heat exchangers 1 In the process, the energy adjustment of the system under different load conditions is realized, and the system runs stably. The other components and connections of this embodiment are the same as those of Embodiment 1 or Embodiment 2.

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 first pipeline valve 9 and the sixth pipeline valve 10, open the fourth pipeline valve 11, The third pipeline valve 12, the second pipeline valve 13 and the seventh pipeline valve 14, the heat pump unit 5 and a plurality of vertical U-shaped buried tube heat exchangers 1 form a loop to realize the heating and cooling of the soil source heat pump; (2) Close the fourth pipeline valve 11, the third pipeline valve 12 and the fifth pipeline valve 8, open the eighth pipeline valve 6, the ninth pipeline valve 7, the first pipeline valve 9, and the sixth pipeline valve A circuit valve 10, a second pipeline valve 13 and a seventh pipeline valve 14, the outdoor heat exchanger 4 and a plurality of vertical U-shaped buried pipe heat exchangers 1 form a loop, and the outdoor heat exchanger 4 realizes the control of soil temperature. Control to keep the soil temperature within a reasonable range. In winter, when the heat provided by the ground source heat pump cannot meet the heat load requirements, the heat of the air can be stored in the soil in summer through the outdoor heat exchanger 4 to solve the problem of insufficient heating capacity of the ground source heat pump in winter. In summer, when the cooling capacity provided by the soil source heat pump cannot meet the cooling load requirements, the outdoor heat exchanger 4 stores the air cooling capacity in the soil in winter to achieve the purpose of regulating the soil temperature; (3) Close the eighth pipeline valve 6 , the ninth pipeline valve 7, the second pipeline valve 13 and the seventh pipeline valve 14, open the fifth pipeline valve 8, the first pipeline valve 9, the sixth pipeline valve 10, and the fourth pipeline valve 11 And the third pipeline valve 12, the outdoor heat exchanger 4 and the heat pump unit 5 form a loop. At this time, the system has the function of an air source heat pump, which realizes heating and cooling of the building, and at the same time allows the soil temperature to be self-regulated and self-contained. Recovery; (4) Close the eighth pipeline valve 6 and the ninth pipeline valve 7, and open all other pipeline valves. At this time, the outdoor heat exchanger 4 and the heat pump unit 5 are connected in parallel with the buried pipe heat exchanger 1, and The outdoor heat exchanger 4 communicates with the heat pump unit 5, which realizes the dual functions of the soil source heat pump and the air source heat pump. The building is heated or cooled through the air and the soil, and the load ratio of the air and the soil can be adjusted to further control the soil. temperature.

Claims (3)

1.一种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),其特征在于: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)。1. A soil source heat pump system with the function of regulating soil temperature, which includes a plurality of vertical U-shaped buried tube heat exchangers (1), a first pipeline (A), a second pipeline (B), a third The pipeline (C), the fourth pipeline (D), the fifth pipeline (E), the outdoor heat exchange device (4) and the heat pump unit (5), are characterized in that it also includes the first pipeline valve (9 ), the second pipeline valve (13), the third pipeline valve (12), the fourth pipeline valve (11), the fifth pipeline valve (8), the sixth pipeline valve (10), the seventh pipeline valve pipeline valve (14), eighth pipeline valve (6), ninth pipeline valve (7), circulation pump one (2) and circulation pump two (3), and the plurality of vertical U-shaped buried pipes for heat exchange The devices (1) are arranged side by side, and one end of a vertical U-shaped buried tube heat exchanger (1) communicates with the inlet end (c) of the outdoor heat exchange device (4) through the first pipeline (A). The other end of the U-shaped buried tube heat exchanger (1) communicates with the outlet (d) of the outdoor heat exchange device (4) through the second pipeline (B), and the rest of the vertical U-shaped buried tube heat exchanger (1 ) are respectively connected to the first pipeline (A) and the second pipeline (B), the inlet end (c) of the outdoor heat exchange device (4) is perpendicular to the The first pipeline valve (9) and the second pipeline valve (13) are arranged in sequence from left to right on the pipeline between the U-shaped buried pipe heat exchangers (1), and the outlet of the outdoor heat exchange device (4) The fifth pipe valve (8) and the sixth pipe pipeline valve (10) and the seventh pipeline valve (14), the fifth pipeline (E) is connected in parallel at both ends of the fifth pipeline valve (8) close to the outdoor heat exchange device (4), and the fifth pipeline The eighth pipeline valve (6), the circulating pump two (3) and the ninth pipeline valve (7) are arranged in sequence on the road (E), and the heat pump unit (5) is connected in parallel between the outdoor heat exchange device (4) and the On the pipeline between the vertical U-shaped buried tube heat exchangers (1) close to the outdoor heat exchange device (4), the inlet port (f) of the heat pump unit (5) passes through the third pipeline (C) and the first pipeline The road (A) is connected, the third pipeline (C) is located between the first pipeline valve (9) and the second pipeline valve (13), and the outlet port (e) of the heat pump unit (5) passes through the fourth pipeline (D) communicates with the second pipeline (B), the fourth pipeline (D) is located between the sixth pipeline valve (10) and the seventh pipeline valve (14), the fourth pipeline (D) Circulation pump one (2) and a fourth pipeline valve (11) are arranged on the top, and a third pipeline valve (12) is arranged on the third pipeline (C). 2.根据权利要求1所述的具有调节土壤温度功能的土壤源热泵系统,其特征在于: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。2. The soil source heat pump system with the function of adjusting soil temperature according to claim 1, characterized in that: the plurality of vertical U-shaped buried tube heat exchangers (1), the first pipeline (A), the second The second pipeline (B), the third pipeline (C), the fourth pipeline (D) and the fifth pipeline (E) are all filled with heat exchange medium. 3.根据权利要求2所述的具有调节土壤温度功能的土壤源热泵系统,其特征在于:所述换热介质为乙二醇溶液。3. The soil source heat pump system with the function of regulating soil temperature according to claim 2, characterized in that: the heat exchange medium is ethylene glycol solution.
CN2010101993757A 2010-06-12 2010-06-12 Heat pump system of soil resource having function of regulating soil temperature Expired - Fee Related CN101858671B (en)

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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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