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Heat pump system of soil resource having function of regulating soil temperature

A soil source heat pump and soil temperature technology, applied in the field of soil source heat pump systems, can solve problems such as system failure, system operation efficiency reduction, and annual average soil temperature rise, and achieve the effect of ensuring long-term stable operation and recovery efficiency

Inactive Publication Date: 2012-11-14
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] 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

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  • Heat pump system of soil resource having function of regulating soil temperature

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specific Embodiment approach 1

[0007] Specific implementation mode one: combine figure 1 Describe the soil source heat pump system with the function of adjusting the soil temperature in this embodiment, which includes a plurality of vertical U-shaped buried tube heat exchangers 1, a first pipeline A, a second pipeline B, a third pipeline C, a Four pipeline D, fifth pipeline E, outdoor heat exchange device 4 and heat pump unit 5, it also includes first pipeline valve 9, second pipeline valve 13, third pipeline valve 12, fourth pipeline valve 11. The fifth pipeline valve 8, the sixth pipeline valve 10, the seventh pipeline valve 14, the eighth pipeline valve 6, the ninth pipeline valve 7, circulation pump one 2 and circulation pump two 3, the multiple Two vertical U-shaped buried tube heat exchangers 1 are arranged side by side, and one end of one 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 ...

specific Embodiment approach 2

[0008] Specific implementation mode two: combination figure 1 Describe the soil source heat pump system with the function of adjusting the soil temperature in this embodiment, the multiple vertical U-shaped buried tube heat exchangers 1, the first pipeline A, the second pipeline B, the third pipeline C, the first Both the fourth pipeline D and the fifth pipeline E are filled with heat exchange medium. Other components and connections of this embodiment are the same as those of Embodiment 1.

specific Embodiment approach 3

[0009] Specific implementation mode three: combination figure 1 The soil source heat pump system with the function of regulating soil temperature in this embodiment is described, 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 th...

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Abstract

A heat pump system of soil resource having a function of regulating soil temperature relates to a heat pump system of soil source, solving the problems that the cold and heat loads of the current heat pump system of soil resource are not coordinated in winter and summer, the annual average temperature of the soil is decreased or increased year by year, the system operating efficiency is graduallyreduced and the cannot operate normally. A plurality of heat exchangers of vertical U-shaped underground pipe are connected in parallel and are communicated with an outdoor heat exchange device; a first pipeline is provided with a first and a second pipeline valves; a second pipeline is provided with a fifth, a sixth and a seventh pipeline valves; a fifth pipeline is provided with an eighth and aninth pipeline valves and a second circulating pump; heat pump machine sets are connected with the first and the second pipelines in parallel; a third pipeline between the first and second pipeline valves is provided with a third pipeline valve; and a fourth pipeline between the sixth and the seventh pipeline valves is provided with a first circulating pump and a fourth pipeline valve. The invention is suitable for heating and refrigerating buildings and supplying domestic hot water.

Description

technical field [0001] 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. Background technique [0002] 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B30/06
Inventor 倪龙牛福新董菲姚杨马最良
Owner HARBIN INST OF TECH
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