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冬夏季不同的空调需求需要注意什么?

来源: 日期:2018-12-13 发布人:admin
日常生活作业中我们都离不开中央空调,尤其是现在到了冬天,一个时节没有用的中央空调是否会各种问题?我们一起来了解一下中央空调是怎么作业的吧:
In our daily life, we can not do without central air-conditioning. Especially in winter, will the central air-conditioning which is useless in one season cause various problems? Let's find out how central air conditioning works.
中央空调体系的作业进程中,伴随着不断进行的热交换进程。能量转化在体系中的具体进程大致分为如下几个进程:冷却水体系中,冷却水经冷却水泵进入冷冻机,在冷凝器中吸热后被进入冷却塔,经电扇散热降温后经过冷却水泵到空调主机,构成冷却水循环体系。在别的一个循环体系中,冷冻水经冷冻水泵进入冷冻主机,在蒸发器内降温后送到风机盘管或末端设备,表冷器在空调室内吸热升温后,再由冷冻水泵送到主机蒸发器构成冷冻水循环体系。
In the process of operation of central air conditioning system, there is a continuous process of heat exchange. The specific process of energy conversion in the system can be roughly divided into the following processes: in the cooling water system, the cooling water enters the refrigerator through the cooling water pump, after absorbing heat in the condenser, it enters the cooling tower, after cooling by the fan, it passes through the cooling water pump to the main air conditioning machine, forming the cooling water circulation system. In other circulating systems, chilled water enters the chiller through a chilled water pump and is cooled in the evaporator and sent to the fan coil unit or terminal equipment. After the surface cooler is heated and heated in the air conditioning room, the chilled water is pumped to the main evaporator to form a chilled water circulating system.
从中央空调体系结构图中能够看出中央空调体系的能耗包括冷水体系和冷却水体系中水泵能耗、空调制冷主机能耗、冷却塔泵设备能耗和末端设备能耗。针对中央空调体系的能耗组成,从节能潜力大的部分侧重剖析设备能效,进步体系能效比。在中央空调体系一切设备中,主机及末端往往对空调体系做功大,这两种设备能耗较之冷水泵、冷却水泵、冷却塔能耗更大。本文针对这些空调能耗进行了基于本体的中央空调节能展示渠道规划,并建立了能耗点评体系。
The energy consumption of central air-conditioning system can be seen from the architecture diagram of central air-conditioning system, including the energy consumption of water pumps in cold water system and cooling water system, the energy consumption of air-conditioning refrigeration main engine, the energy consumption of cooling tower pump equipment and the energy consumption of terminal equipment. Aiming at the energy consumption composition of central air conditioning system, the energy efficiency of equipment and the energy efficiency ratio of system are analyzed from the most potential part of energy saving. In all the equipment of central air conditioning system, the main engine and the terminal often do the most work on the air conditioning system. The energy consumption of these two kinds of equipment is larger than that of cold water pump, cooling water pump and cooling tower. Aiming at these air-conditioning energy consumption, this paper carries out ontology-based central air-conditioning energy-saving display channel planning, and establishes energy consumption evaluation system.
按对修建环境操控功能的分类,能够分为两大类:(1)以修建热湿环境为首要操控目标的体系,首要操控目标是修建物内的温湿度;(2)以修建内污染物为首要操控目标的体系,首要操控目标是修建物室内空气质量。上述两大类的操控目标和功能互有穿插。本文首要针对室内热湿环境的操控进行研究。
According to the classification of building environmental control function, it can be divided into two categories: (1) the system with building thermal and humid environment as the primary control target, the primary control target is the temperature and humidity in the building; (2) the system with building internal pollutants as the primary control target, and the primary control target is the indoor air quality of the building. The above two types of control objectives and functions are interwoven with each other. This paper mainly focuses on the control of indoor thermal and humid environment.
济南空调安装
我国疆域辽阔,南北方在气候方面存在较大差异,依据气候特色,将我国的气候类型分为五个区域:酷寒区域、冰冷区域、夏热冬冷、夏热冬温暖温文区域。而在夏热冬冷和冰冷区域区域除了冬季有供热需求外,夏季往往也有制冷需求,而在我国的各个大型共用修建中,使用集中式空调体系满意冬夏季空调需求的越来越多。因为夏季送风冷空气下沉的特色,使得夏季工况较简单满意。但与此同时热风供暖却凸显出了一些缺点:例如因为空间较大热气流在浮升力下上升,热量很多消耗在空间上方。因为冬季送风温度较室温高,往往会呈现送出的热风积聚在房间上部,不能充沛到达人员活动区域,使得笔直方向呈现必定的温度梯度,影响作业区域人体的热舒适。因而对全年性空调体系而言,在规划阶段需求同时考虑冬夏季不同的空调需求。
China has a vast territory, and there are great differences in climate between the north and the south. According to the climate characteristics, China's climate types are divided into five regions: cold region, cold region, hot summer and cold winter, warm and warm summer and winter. In hot summer and cold winter regions, besides heating demand in winter, refrigeration demand often exists in summer. In various large-scale common buildings in China, more and more centralized air-conditioning systems are used to satisfy the air-conditioning demand in winter and summer. Because of the characteristics of cold air sinking in summer, the working conditions in summer are simple and satisfactory. But at the same time, hot air heating has highlighted some shortcomings: for example, because of the large space of hot air rising under buoyancy, a lot of heat is consumed above the space. Because the temperature of winter air supply is higher than that of room temperature, the hot air often accumulates in the upper part of the room and cannot reach the human activity area sufficiently, which makes the temperature gradient in the straight direction appear certain and affects the thermal comfort of the human body in the working area. Therefore, for the annual air-conditioning system, different air-conditioning requirements in winter and summer should be considered in the planning stage.
空气调节的目的就是为人们创造一个健康、舒适的室内环境,室内环境的空调效果是经过气流组织规划实现的。常规空调气流组织的规划是基于射流理论,经过对温度与速度反复迭代以及校核,直至终找到合理的送回风方法与参数,然而这种方法忽略了其他影响因素,如排风口的设置、热源性质与尺寸等,势必会形成必定的误差,若将其用于大空间空调体系的规划是不合适的。针对大空间内部的气流组织需求分别满意夏季制冷、冬季供热的需求,运用CFD进行数值核算剖析,在规划阶段对各种气流组织规划方案猜测其空调效果,并针对某些缺乏提出必定的优化办法能够给予规划人员更加具体的材料作为规划参阅,具有必定的工程应用价值与意义。
The purpose of air conditioning is to create a healthy and comfortable indoor environment for people. The air conditioning effect of indoor environment is achieved through air distribution planning. The air distribution planning of conventional air conditioning is based on jet theory. After iterating and checking the temperature and velocity repeatedly, a reasonable air supply and return method and parameters are finally found. However, this method ignores other factors, such as the setting of exhaust outlet, the nature and size of heat source, which will inevitably lead to certain errors. If it is used in the planning of large space air conditioning system, it is not appropriate. Suitable. In view of the air distribution demand in large space, which satisfies the demand of summer refrigeration and winter heating respectively, CFD is used to carry out numerical calculation and analysis. In the planning stage, various air distribution planning schemes are used to guess the air conditioning effect. In view of some shortcomings, certain optimization methods are put forward, which can give planners more specific materials as planning reference and have certain engineering application value. And significance.
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