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Heat recovery。在此我要向他們道謝,并祝他們?cè)诮窈蟮墓ぷ骱蜕钪幸环L(fēng)順!參考文獻(xiàn)[1] 陸耀慶 :[2]簡(jiǎn)明空調(diào)設(shè)計(jì)手冊(cè)/趙榮義 : [3]吳繼紅,李佐周 :[4] 馬最良, :[5] 付祥釗,:[6] 陸亞俊,:[7] GB [S] [8] GB/[S] [9] [S][10] [S][11] [12] [S] [13] Allan T, Kirkpatrick and James S, Ellison. Cold air distribution system design guides [A] .America Society of Heating. Refrigerating and Air Conditioning Engineers. Inc[C].[14] Levine M D,Bush J F,Deringer J of building energy conservation activities in :Proc ASEAN Special Sessions of the ASHARE Far East Conference on Air Condictioning in Hot Climates, Kuala Lumpur, Malaysia, 1989附 錄Ⅰ英文文獻(xiàn)Experimental study of sensible heat recovery of heat pump during heating and ventilationAbstractIndoor space requires heating, cooling and ventilating for maintaining human occupant space to a fortable level. Heat pump system is now widely used since it has the capabilities of providing both cooling and heating with a single , which exhausts the contaminated indoor air and brings in the fresh outdoor air is essential for maintaining pleasant indoor air quality. Ventilation, however, causes energy loss since airconditioning is necessary to change the state of outdoor air to that of indoor. When outdoor air is introduced into the interior space, it must be cooled or heated to bring it to the indoor space condition. In this work, three methods of recovering sensible heat during heating and ventilation process of heat pump have been studied experimentally. Those methods are by a separate sensible heat exchanger, introduction of indoor air to the evaporator (single heat recovery), and ?nally a bination of forementioned two methods (double heat recovery). An airsource heat pump system with none, single and double heat recovery capabilities has been built and tested in two constanttemperature and constanthumidity thermal chambers that simulate the indoor and outdoor environments. From the experiment performed under standard heating condition with a ventilation ratio of %, coef?cient of performance for none, sensible heat exchanger, single and double heat recoveries were , , and , respectively. Double heat recovery heat pump that has the ventilation and double heat recovery functions integrated into a single unit showed the best COP performance.Keywords: Air conditioning。通過從他豐富的實(shí)踐經(jīng)驗(yàn)和嚴(yán)謹(jǐn)治學(xué)的工作態(tài)度,以及堅(jiān)韌不懈的探索精神,給予了我銘記于心的印象和無(wú)微不至的幫助。 空調(diào)系統(tǒng)的保溫防腐管道的保溫和防腐一是為了減少管道的冷、熱損失,二是防止冷管路表面結(jié)露,三是防止金屬表面的外部腐蝕并保護(hù)好涂料層。在膨脹管、循環(huán)管上,嚴(yán)禁安裝閥門,以防止系統(tǒng)超壓,水箱水凍結(jié)。在本設(shè)計(jì)中,膨脹水箱連接至回水總管上,起定壓、排氣、補(bǔ)水的作用。兩相鄰配管間距分別為各自直徑和+120,最外管與邊緣距離為其臨近外側(cè)管徑+60。 綜上所述,冷凍水泵揚(yáng)程為上述阻力之和。 根據(jù)此可選擇一臺(tái)山東雙輪空調(diào)循環(huán)水泵100RK7420B,性能參數(shù)見表92。 2)水泵并聯(lián)不宜超過3臺(tái),即進(jìn)行制冷主機(jī)選擇時(shí)也不宜超過三臺(tái)。冷卻水泵選擇原則:。/h75機(jī)組運(yùn)行重量(kg)2154壓頭損失kpa93外形尺寸長(zhǎng)度mm3200污垢系數(shù)寬度mm1020進(jìn)出口管徑mmDN70高度mm1630噪聲(dB)75注:壓縮機(jī)型號(hào)中6表示有一只卸載;7表示兩只卸載;F表示無(wú)卸載。(4)機(jī)組在設(shè)計(jì)工況下運(yùn)行,制冷量為464kw,冷凍水流量為60m179。(1)根據(jù)制冷系統(tǒng)負(fù)荷Q=746KW,結(jié)合建筑物的構(gòu)造和用途進(jìn)行綜合考慮,所以選擇兩臺(tái)上海聯(lián)合開利空調(diào)設(shè)備有限公司生產(chǎn)的螺桿式冷水機(jī)組(),名義制冷量在為464kw。通常情況下選擇電力驅(qū)動(dòng)的制冷機(jī)組時(shí),當(dāng)單機(jī)空調(diào)制冷量>1163kw時(shí),宜選用離心式;>5821163kw時(shí),宜選用離心式或螺桿式;<582kw時(shí),宜采用活塞式。(6)冷凝水管的公稱直徑DN(mm),應(yīng)根據(jù)冷凝水的流量計(jì)算確定。(3)冷凝水管道宜采用聚氯乙烯塑料管或鍍鋅鋼管,不宜采用焊接鋼管。風(fēng)機(jī)盤管加獨(dú)立新風(fēng)系統(tǒng)水管路水力計(jì)算:對(duì)比該系統(tǒng)底層最不利環(huán)路與頂層最不利環(huán)路,比較出整個(gè)系統(tǒng)的最不利環(huán)路。 水系統(tǒng)分區(qū)本建筑是綜合性的,它分為營(yíng)業(yè)大廳、商務(wù)間、餐廳、辦公室和客房,這幾部分在使用時(shí)間,使用方式上存在很大的差別。變流量系統(tǒng)雖然投資較之頗高,系統(tǒng)復(fù)雜些,但其可節(jié)約運(yùn)行能耗克服頂流量系統(tǒng)的不足。 水系統(tǒng)的設(shè)計(jì) 冷凍水系統(tǒng)形式本設(shè)計(jì)中冷媒系統(tǒng)為閉式、變水量、一次泵系統(tǒng),這是通過幾方面的利弊比較得出的。Pd=矩形分叉三通,局部阻力系數(shù)ξ=,局部壓力損失⊿Pj=ξl=2. 畫出空調(diào)系統(tǒng)的軸側(cè)圖,管段編號(hào)并標(biāo)出長(zhǎng)度和風(fēng)量。一至十二層分別各選用一臺(tái)吊頂式新風(fēng)處理機(jī);各房間的風(fēng)機(jī)盤管型號(hào)及數(shù)量見匯總表;標(biāo)準(zhǔn)層客房每一房間選一個(gè)風(fēng)機(jī)盤管。 (3)、室內(nèi)熱源散熱引起的冷負(fù)荷 電動(dòng)設(shè)備 Q s =1000n1 n2 n3N/ η N——電動(dòng)設(shè)備的安裝功率; η ——電動(dòng)機(jī)效率; n1 ——利用系數(shù); n2 ——電動(dòng)機(jī)負(fù)荷系數(shù); n3 ——同時(shí)使用系數(shù)。 ——室內(nèi)計(jì)算溫度176。C。其中對(duì)流形成的得熱量立即變成室內(nèi)冷負(fù)荷,輻射部分的得熱量經(jīng)過室內(nèi)圍護(hù)結(jié)構(gòu)的吸熱—放熱后,有時(shí)間的衰減和數(shù)量上的延遲?!? W/(m57180。 綜上所述,本設(shè)計(jì)最終確定的方案為空氣水和新風(fēng)系統(tǒng),采用螺桿式制冷機(jī)組提供冷源,放置于地下室。在機(jī)組類型方面,考慮改建筑為綜合營(yíng)業(yè)樓,要求制冷機(jī)組的震動(dòng)和噪聲等級(jí)不能過高,螺桿式制冷壓縮機(jī)組構(gòu)造簡(jiǎn)單、體積小、易損件少、容積效率高,對(duì)濕壓縮不敏感并且振動(dòng)小噪聲低,軸承壽命長(zhǎng),因此冷源采用螺桿式制冷機(jī)組。包括集中處理新風(fēng),經(jīng)誘導(dǎo)器(全空氣或另加冷熱盤管)送入室內(nèi)或各室有風(fēng)機(jī)盤管系統(tǒng)(即風(fēng)機(jī)盤管與風(fēng)道并用的系統(tǒng))也包括分區(qū)機(jī)組系統(tǒng)等。利用該空調(diào)裝置,將主要進(jìn)行空調(diào)房間內(nèi)氣流組織 不同高度不同位置溫濕度、不同區(qū)域內(nèi)供冷量等調(diào)節(jié)控制,能夠使不同功能的房間保持各自適宜的溫度功能。設(shè)計(jì)中涉及到如下方面的內(nèi)容:空調(diào)系統(tǒng)的空調(diào)方案比較、空調(diào)系統(tǒng)冷負(fù)荷及濕負(fù)荷的計(jì)算、空調(diào)系統(tǒng)系統(tǒng)布置、空調(diào)設(shè)備及附件選擇、空調(diào)系統(tǒng)水力計(jì)算、新風(fēng)系統(tǒng)的設(shè)計(jì)、布置,最后繪制出清晰明確的工程圖紙。所以應(yīng)從這幾方面來(lái)減少空調(diào)能耗。因而中央空調(diào)大多數(shù)時(shí)間是在低于機(jī)組額定負(fù)荷即部分負(fù)荷狀態(tài)下運(yùn)行,造成了電能極大的浪費(fèi)。這不僅意味著受控的空氣環(huán)境對(duì)各種生產(chǎn)過程的穩(wěn)定運(yùn)行和保證產(chǎn)品質(zhì)量有重要作用,而且對(duì)提高勞動(dòng)效率,保護(hù)人的身體健康,創(chuàng)造舒適的工作及生活環(huán)境有重要意義。 關(guān)鍵詞: 中央空調(diào) 風(fēng)機(jī)盤管 制冷機(jī)組 負(fù)荷等AbstractThis is the air conditioning refrigeration engineering design for a Center for Disease building is located in Bengbu and it is eleven public constructions. Underground one is the engine room and the garage, and it is the work hall from one to eleven. Advantages and disadvantages of the program by airconditioned places for parison, in light of actual conditions and practical engineering design information (economic, environmental benefits), this design uses a fan coil plus fresh air of semiindependent central air conditioning system, and the water systems and chiller plant design on the basis of the air conditioning. In the design process, the main work of the air conditioning system have air conditioning scheme parison, air conditioning cooling load of the system and moisture load calculation, air conditioning system arrangement, air conditioning equipment and accessories, airconditioning and ventilation system of the hydraulic calculation of the design and layout. Finally draw out a clear engineering drawings. Design and construction plans kept concise design and construction at the same time meet the regulatory requirements, to guide the purchase of materials, equipment installation and construction works for the construction of a fortable indoor environment, health guarantees.Key words: Central air conditioning Fan Coil unit load etc目 錄引言 1第1章 確定空調(diào)系統(tǒng)的設(shè)計(jì)方案 3 設(shè)計(jì)背景 3 設(shè)計(jì)需求 3 已知資源 3 系統(tǒng)方案分析 3 空調(diào)系統(tǒng)分類 3 確定系統(tǒng)方案 4第2章 空調(diào)負(fù)荷的計(jì)算 6 主要設(shè)計(jì)參數(shù) 6 室外氣象參數(shù) 6 室內(nèi)設(shè)計(jì)參數(shù) 6 建筑熱工 7 冷負(fù)荷的計(jì)算 7 具體計(jì)算步驟 7 冷負(fù)荷計(jì)算所需基本數(shù)據(jù) 10 冷負(fù)荷計(jì)算數(shù)據(jù) 14第3章 空氣處理 15 各房間冷熱負(fù)荷匯總 15 空氣處理過程的計(jì)算 16 各房間新風(fēng)負(fù)荷分析結(jié)果匯總(見附表) 20 空氣處理設(shè)備的選擇 20第4章 空氣輸送與分配 23 空氣管道的設(shè)計(jì)與阻力計(jì)算 23 計(jì)算方法 23 具體計(jì)算 23 新風(fēng)管道阻力計(jì)算表 24第5章 空調(diào)水系統(tǒng) 31 水系統(tǒng)的設(shè)計(jì) 31 冷凍水系統(tǒng)形