【摘要】：在辦公建筑中,空調(diào)系統(tǒng)能耗占建筑系統(tǒng)總能耗的60%左右,節(jié)能潛力巨大[1]。面對(duì)日益嚴(yán)峻的能源危機(jī),磁懸浮離心式冷水機(jī)組應(yīng)用而生,其極高的能效比大大降低了空調(diào)系統(tǒng)的能耗,正得到廣泛的推廣和應(yīng)用。本次設(shè)計(jì)為青島某辦公建筑群空調(diào)系統(tǒng)設(shè)計(jì),其建筑規(guī)模龐大,空調(diào)區(qū)域使用要求復(fù)雜,給建筑的空調(diào)系統(tǒng)設(shè)計(jì)帶來(lái)一定的困難。本著“適用、經(jīng)濟(jì)、節(jié)能、環(huán)�！钡脑瓌t,進(jìn)行了本次空調(diào)系統(tǒng)的設(shè)計(jì)。針對(duì)本次課題研究的需要,首先使用鴻業(yè)暖通負(fù)荷計(jì)算軟件對(duì)建筑負(fù)荷進(jìn)行計(jì)算,并利用De ST軟件模擬了建筑全年逐時(shí)負(fù)荷,掌握了建筑全年動(dòng)態(tài)負(fù)荷特性;結(jié)合當(dāng)?shù)啬茉唇Y(jié)構(gòu)、政策及氣候特點(diǎn),提出了多種冷熱源方案,通過(guò)經(jīng)濟(jì)技術(shù)性比較,確定了空調(diào)系統(tǒng)的冷源為磁懸浮離心式冷水機(jī)組,空調(diào)系統(tǒng)熱源為低谷電蓄熱電鍋爐;隨后進(jìn)行了空調(diào)系統(tǒng)的水力計(jì)算,為后續(xù)的設(shè)備選型及水系統(tǒng)設(shè)計(jì)提供一定依據(jù);緊接著對(duì)一級(jí)泵定流量系統(tǒng)、二級(jí)泵變流量系統(tǒng)和一級(jí)泵變流量系統(tǒng)進(jìn)行了能耗分析計(jì)算,最終確定負(fù)荷側(cè)水系統(tǒng)形式為一級(jí)泵變流量系統(tǒng);最后,針對(duì)一級(jí)泵變流量系統(tǒng)提出運(yùn)行控制方案,使整個(gè)空調(diào)系統(tǒng)能夠安全、合理、高效地運(yùn)行。在本次設(shè)計(jì)中,相對(duì)與普通離心式冷水機(jī)組,磁懸浮離心式冷水機(jī)組的節(jié)能效率達(dá)到41.39%,節(jié)能效果非常明顯;相對(duì)于一級(jí)泵定流量系統(tǒng),一級(jí)泵變流量系統(tǒng)節(jié)省了28.42%的運(yùn)行能耗,節(jié)能優(yōu)勢(shì)明顯;設(shè)計(jì)中采用的低谷電蓄熱電鍋爐能很好的達(dá)到削峰填谷的目的,且年運(yùn)行費(fèi)用遠(yuǎn)小于高效燃?xì)庹婵斟仩t,經(jīng)濟(jì)效益明顯。
[Abstract]:In office buildings, the energy consumption of air conditioning system accounts for about 60% of the total energy consumption of building system. Facing the increasingly severe energy crisis, the application of magnetic suspension centrifugal chillers, whose extremely high energy efficiency ratio has greatly reduced the energy consumption of air conditioning systems, is being widely promoted and applied. This design is designed for the air conditioning system of a certain office building group in Qingdao. The large scale of the building and the complex requirements for the use of the air conditioning area bring some difficulties to the design of the air conditioning system of the building. In line with the "applicable, economic, energy-saving, environmental protection" principle, the design of the air-conditioning system. In order to meet the need of this research, we first use Hongye HVAC load calculation software to calculate the building load, and use De ST software to simulate the hourly load of the building year, and master the dynamic load characteristics of the building year. According to the local energy structure, policy and climate characteristics, several schemes of cooling and heat source are put forward. Through the comparison of economy and technology, the cooling source of air conditioning system is magnetic suspension centrifugal chiller, and the heat source of air conditioning system is low electric storage electric boiler. Then the hydraulic calculation of the air conditioning system is carried out, which provides a basis for the subsequent equipment selection and water system design. Then, the energy consumption analysis and calculation of the first stage pump constant flow system, the two stage pump variable flow system and the first stage pump variable flow system are carried out. Finally, the first stage pump variable flow system is defined as the load side water system. Finally, the operation control scheme is put forward for the first stage pump variable flow system, so that the whole air conditioning system can operate safely, reasonably and efficiently. In this design, the energy saving efficiency of magnetic suspension centrifugal chillers is 41.39, compared with ordinary centrifugal chillers, the energy saving effect is very obvious, compared with the constant flow system of the first stage pump, the first stage pump variable flow system saves 28.42% of the running energy consumption. The energy saving advantage is obvious, the low valley electric storage electric boiler used in the design can achieve the purpose of cutting the peak and filling the valley, and the annual operating cost is far less than that of the high efficiency gas vacuum boiler, and the economic benefit is obvious.
【學(xué)位授予單位】：青島理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU831.3

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本文編號(hào)：2284958