某7层大酒店中央空调系统设计

某7层大酒店中央空调系统设计图纸

设计总说明
随着国家经济水平的不断提高，人们逐渐认识到建筑环境对人类的健康、工作效率以及产品质量的好坏起着非常重要的作用。人们对当今建筑的要求，不满足于遮风挡雨，还要有一个温湿度适宜、舒适宁静、空气清新的环境。因此空气调节技术经过不断的改进和革新，已慢慢发展成为人们生活中用来维持室内良好环境的一种不可或缺的技术。对空气温湿度、风速度以及清洁程度进行人工的调节，进行系统的空调设计，以此满足人体舒适性的要求，提高人们的工作效率。
本设计的主要依据有：《民用建筑供暖通风与空气调节设计规范》（GB50736-2012）、《建筑设计防火规范》（GB50016-2014）、《公共建筑节能设计标准》（GB50189-2015）等。
某7层大酒店是一家集餐饮、办公、休闲娱乐和住宿等为一体的多功能商业建筑。建筑共七层，一至五层层高均为4m，六层和七层层高均为3.5m，总高度27m。建筑总面积为12527.1m，其中空调区域的面积为7842m2。空调房间类型主要有接待大厅、商务中心、酒吧、KTV房、餐厅、保龄球厅、办公室、客房以及洗浴中心等。使用鸿业负荷计算8.0软件对该建筑空调房间进行负荷计算，夏季总冷负荷最大值为981.6kW，出现时间为17：00，空调面积冷指标为126.0W/m2，新风总冷负荷为374.1kW。由于各功能房间使用时间不统一，从满足顾客舒适度和空调节能角度出发，选用风机盘管加新风系统，各房间可独立控制系统的开启和关闭。在接待大厅、酒吧、桌球中心等大面积房间采用新风与风机盘管送风相独立的送风方式；在KTV房、餐厅包房、办公室以及客房等小面积房间采用新风与风机盘管送风相混合的送风方式。考虑到装修要求，风机盘管选用开利卧式暗装42系列，新风机组选用开利吊顶式DBFPX系列。风机盘管进出水管均安装阀门，以方便之后的维修保养需要。新风机组的选型满足所需的风量、冷量以及余压需求。一至五层每层均设置2台新风机组，六层和七层各设置1台。吸风口处装有防雨百叶，风管采用软连接，并安装防火阀。可利用半吊顶的房间，如客房，采用侧送风方式，侧送风口选用双层百叶形式；其他房间均采用散流器送风方式，散流器选用方形散流器；回风口采用单层百叶形式，上送上回。冷冻水系统采用两管制、闭式循环系统，各层水管异程布置，使用调节阀调节平衡。冷水机组设置在屋顶平台，选用联合开利（上海）空调有限公司生产的30GX系列风冷螺杆式冷水机组2台，型号为30GX182，水量118m3/h，压降50kPa，制冷工况下进水12℃，出水7℃。选用湖南潇湘制泵有限公司生产的VGDW50-35型冷冻水泵3台，两用一备，流量35m3/h，扬程26m。设计中采用上海众旗实业有限公司生产的SC600型膨胀水箱定压，同时还起到排气、补水以及为水因温度变化而引起的体积膨胀给予余地的作用。系统运行时产生的冷凝水通过冷凝水管集中排放。另外，本工程还对空调系统的防腐保温以及消声减震等进行了简单的设计。

Generaldesign specification
With the constant improvement of the national economic level, people gradually realize the building environment on human health, work efficiency and product quality plays a very important role.People of today's construction requirements, not content with wind and rain, must have a suitable temperature and humidity, comfortable and quiet environment, and the air was fresh.So air conditioning technology through continuous improvement and innovation, has gradually developed into people's life is used to maintain indoor sound environment in an indispensable technique.Of air temperature and humidity, wind speed and clean degree of manual adjustment, for the air conditioning system design, to meet the requirements of the human body comfort, enhance people's work efficiency.
The main basis of this design are:“the civil building heating ventilation and air conditioning design standard (GB50736-2012)”,“the code for fire protection design of buildings (GB50016-2014)”,“public building energy efficiency design standard (GB50189-2015)”, etc.
Hangzhou Xiangyun Hotel is a restaurant,office, leisure, entertainment and accommodation for the integration of multi-functional commercial building, etc.Building a total of seven layers, one to five layers are 4 m high, six and seven layers of high of 3.5 m, total height 27 m.A total construction area of 12527.1 m2, including air conditioning area covers an area of 7842 m2.Air conditioning room types mainly include the reception hall, business center, bars, KTV rooms, restaurants, bowling room, office, room, and bath center, etc.Load calculation using hongye 8.0 software room in the building air-conditioning system load calculation, the total cooling load in summer a maximum of 981.6 kW, in time to 17:00, air conditioning cold area is 126.0 W/m2, total fresh air cooling load is 374.1 kW.Use time as a result of each function room, from the Angle of the meet customer comfort and energy saving, selects fan-coil unit plus fresh air system, each room can be independent control system of the open and closed.In the center of the reception hall, bar, billiards room large area such as the fresh air and fan coil units are independent of air supply mode of air supply;In the KTV rooms, dining rooms, office and guest room small area room USES air blended with fan coil air supply mode of air distribution.Consider to decorate a requirement, fan coil units chosen carrier horizontal dark outfit 42 series, fresh air unit selects the carrier condole DBFPX series.Fan coil units in and out of the water pipes are installed valves, in order to convenient after maintenance needs.Fresh air unit selection to meet the required amount of wind, cold, and residual pressure requirements.One to five layer on each floor are set with 2 fresh air units, six and seven layers each set 1.Suction FengKouChu with rainproof shutter, duct using soft connection, and install the fire damper.Half a ceiling of room available, such as guest room, use air supply side, side air supply outlet choose double shutter form;Other rooms adopt inverter air supply way, scattered inverter to choose square diffuser;Return air mouth in the form of single louvers, giving last time.Chilled water system USES two control, closed loop system, the layers of the pipe process arrangement, using the regulator to adjust balance.Chiller setting on the roof platform, choose joint carrier air conditioning co., LTD. (Shanghai) 30GX series 2 units, air-cooled screw water chillers models for 30GX182, 118 m3/h, 50 kPa pressure drop, cooling water in 12 ℃, under the condition of water 7 ℃.Choose Hunan Xiaoxiang system pump co., LTD production VGDW50-35 three type of frozen water pump, and a case, the flow of 35 m3/h, head of 26 m.Produced by Shanghai industrial co., LTD. The flag in the design of constant pressure type SC600 expansion tank, at the same time also have exhaust, filling water as well as the water volume expansion caused by temperature change and give room for action.The system is running the discharge of condensate by condensed water pipe concentration.In addition, I also for the insulation of air conditioning system, and shock absorption and so on has carried on the simple design.

目录
0绪论1
1工程概述与设计依据2
1.2设计依据2
1.2.1围护结构及热工特性2
1.2.2围护结构的做法3
1.2.3空调室外设计参数4
1.2.4空调室内设计参数5
2负荷计算7
2.1夏季冷负荷的组成7
2.2负荷计算过程和结果汇总7
2.2.1冷负荷系数法计算负荷的过程7
2.2.2各层房间冷负荷计算及汇总14
2.2.3各层房间湿负荷计算及汇总14
3空调方案的确定17
3.1空调系统的确定17
3.1.1风机盘管加独立新风方式的确定17
3.1.2风机盘管加独立新风方式的特点17
3.2空气处理过程设计17
3.2.1风机盘管加独立新风系统设计计算17
3.2.2风机盘管选型19
4风系统的设计21
4.1风管材料和形状的确定21
4.2选择送风方式和送风口形式21
4.3气流组织设计21
4.3.1散流器顶送气流组织的设计计算21
4.3.2侧送风气流组织的设计计算22
4.3.3风机盘管加独立新风系统风口选型汇总24
4.4风管设计28
4.4.1风道水力计算步骤28
4.4.2风机盘管加新风系统的新风管道水力计算28
4.4.3新风机组的选型37
5水系统的设计39

5.1水系统方案的确定39
5.1.1两管制水系统的特点39
5.1.2开式和闭式循环系统的比较39
5.1.3同程和异程系统的比较39
5.1.4水系统方案的确定39
5.2冷冻水管路设计计算步骤40
5.3冷冻水供回水管的水力计算40
5.4冷水机组的选型43
5.5冷冻水泵的选型45
5.5.1冷冻水泵设计规范45
5.5.2冷冻水泵的选型计算45
5.6冷凝水排放系统设计46
5.7膨胀水箱选择与计算47
6管道保温设计的考虑48
6.1管道保温的一般原则49
6.2管道保温层厚度的确定49
7空调系统消声减振的设计方案50
7.1空调系统的消声设计50
7.2空调系统的减振设计50
结论51
致谢52
参考文献53
附录A 54
附录B 55
附录C 60

0绪论
建筑是人们生活和工作的场所，建筑环境在人们的生活、工作效率和产品质量中起着非常重要的作用。同时，由于城市化工业化进程多年来的不断加深，能源的大量开采和不合理的利用，致使能源紧缺的问题愈发严重。为了响应国家节能减排的号召，设计良好的与低能耗运行的中央空调系统已成为普遍的需求，对减少经济上的开支、保护地球的生态环境具有着极其重要的意义。
设计是把专业理论知识应用于实践工程的绝佳的锻炼机会。在设计中不光要求我们熟练掌握暖通空调专业相关的基础知识，还要了解和掌握国家出台的相关建设方针政策，综合运用学到的理论知识，联系实际来解决工程设计的问题。通过设计，明确设计程序，设计内容以及各个设计阶段的目的要求和各项工作之间的必要配合。
某7层大酒店中央空调系统设计，该建筑总建筑面积达12527.1平方米，总高度27米，共7层。是一栋以住宿为主，功能多样化的高层建筑。设计的主要目的是满足建筑物所需要的温湿度以及新鲜空气要求的设计，即常见的舒适型空调设计。但这次设计的任务还是挺有难度的的，与之前的课程设计相比，无论是从建筑面积、还是建筑高度来讲，这都是一次全新的挑战，全面综合地考验了我的专业能力。
通过这次设计，我可以更为有效地运用暖通专业知识，将知识与实践相结合，在设计中发现问题、解决问题，获得一定的空调系统设计能力，为以后学习和工作打下良好的基础。
由于本人经验不足，水平有限，在设计过程中难免会出现一些错误，恳请各位老师指正。