【摘要】：土壤源熱泵技術(shù)響應(yīng)了節(jié)能，環(huán)保，低碳的號(hào)召，在我國以及世界其他地域被廣泛應(yīng)用。本文主要以實(shí)際工程案例為依托，歸納了目前實(shí)際工程中常見的幾種室外水平管的連接方式，在局部井群基礎(chǔ)上，設(shè)計(jì)計(jì)算并分析它們的水力分布情況，并進(jìn)一步分析他們各自優(yōu)缺點(diǎn)。介紹了地下車庫（地下建筑）的水平管連接方式，分析不同流速、垂直埋管埋深、環(huán)路長度等方面對(duì)系統(tǒng)水力工況的影響。結(jié)合不同水平管連接方式的初投資以及它們的基本特點(diǎn)，選取一種較合理的設(shè)計(jì)方案，使系統(tǒng)在滿足設(shè)計(jì)要求的同時(shí)，降低運(yùn)行成本和維修成本，對(duì)實(shí)際工程應(yīng)用有一定參考價(jià)值。 首先，本文簡述了地埋換熱系統(tǒng)的發(fā)展與應(yīng)用。然后指出了在實(shí)際工程中，熱泵系統(tǒng)在設(shè)計(jì)和施工階段不同程度存在的問題，在此基礎(chǔ)上，重點(diǎn)分析土壤源熱泵系統(tǒng)水力工況和初投資的重要性。 其次，對(duì)地埋換熱系統(tǒng)的水力工況理論進(jìn)行了分析，分別從水力失調(diào)、水力穩(wěn)定性以及水力平衡三個(gè)方面出發(fā)，分析了他們對(duì)水力工況的影響。然后以管徑、埋深等若干方面來具體分析其對(duì)水力分布的影響。匯總了目前實(shí)際工程中常見的幾種水平管連接方式，以肥鄉(xiāng)實(shí)際案例為依托來計(jì)算分析它們水力分布。 然后，對(duì)地埋換熱系統(tǒng)的設(shè)計(jì)和施工階段的要點(diǎn)進(jìn)行說明。概述了地埋換熱系統(tǒng)的基本組成，然后介紹了系統(tǒng)井群的布置和地埋管連接方式。通過合理的系統(tǒng)布置，能夠使系統(tǒng)局部和整體水量分布基本均勻一致，提高系統(tǒng)運(yùn)行穩(wěn)定性。施工階段的每一個(gè)環(huán)節(jié)都很關(guān)鍵，安全可靠的系統(tǒng)，才能夠使系統(tǒng)在合理的設(shè)計(jì)水力工況下運(yùn)行。 最后，對(duì)地埋換熱系統(tǒng)經(jīng)濟(jì)性進(jìn)行分析。從整體、局部初投資進(jìn)行計(jì)算分析，對(duì)比了常見幾種水平管連接方式的特點(diǎn)，為不同情況下合理選取設(shè)計(jì)施工方案提供一定理論支持。在此基礎(chǔ)上，分析了系統(tǒng)運(yùn)行費(fèi)用和節(jié)能熱回收。
[Abstract]:Ground-source heat pump (GSHP) technology has been widely used in China and other parts of the world because of energy saving, environmental protection and low carbon. In this paper, based on practical engineering cases, several kinds of connection modes of outdoor horizontal pipes are summarized, and their hydraulic distribution is calculated and analyzed on the basis of local wells. And further analysis of their respective strengths and weaknesses. This paper introduces the connection mode of horizontal pipe in underground garage (underground building), and analyzes the influence of different velocity of flow, buried depth of vertical buried pipe and length of loop on hydraulic condition of the system. Combined with the initial investment of different horizontal pipe connection modes and their basic characteristics, a more reasonable design scheme is selected to reduce the operation cost and maintenance cost of the system while meeting the design requirements. It has certain reference value for practical engineering application. Firstly, the development and application of buried heat transfer system are briefly described in this paper. Then it points out the problems existing in different degrees in the design and construction of the heat pump system in practical engineering. On this basis, the importance of the hydraulic condition and initial investment of the ground-source heat pump system is analyzed emphatically. Secondly, the theory of hydraulic condition of buried heat transfer system is analyzed, and their influence on hydraulic condition is analyzed from three aspects: hydraulic imbalance, hydraulic stability and hydraulic balance. Then the influence of pipe diameter and buried depth on hydraulic distribution is analyzed in detail. This paper summarizes several kinds of horizontal pipe connection modes in practical engineering at present and calculates and analyzes their hydraulic distribution based on the actual case of Fertilizer Township. Then, the main points of the design and construction phase of the buried heat transfer system are explained. The basic composition of buried heat transfer system is summarized, and then the layout of system well group and the connection mode of buried pipe are introduced. Through reasonable system arrangement, the local and overall water distribution of the system can be basically uniform, and the stability of the system can be improved. Every link in the construction stage is very critical. Only a safe and reliable system can make the system run under reasonable design hydraulic conditions. Finally, the economy of buried heat transfer system is analyzed. Based on the calculation and analysis of the whole and local initial investment, the characteristics of several common horizontal pipe connection modes are compared, which provides certain theoretical support for the reasonable selection of design and construction schemes under different conditions. On this basis, the operating cost of the system and energy saving and heat recovery are analyzed.
【學(xué)位授予單位】：河北工程大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TU83

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