商用中央空调系统使用与分类 |
添加时间:2018/10/22 15:29:31 浏览次数: |
单冷式:
Single cooling type:
将室内热湿空气吸入,经过蒸发器将水蒸气冷凝,然后将干燥、凉爽的空气送入室内,起到降温、降湿的作用。
The indoor hot and wet air is inhaled, the steam condenses through the evaporator, and then the dry and cool air is sent into the room, and the effect of cooling and humidifying is played.
冷热式:
Cold and hot type:
既能降温、降湿,又可制热、取暖。制热方式可分为热泵式和电热式。热泵式空调取暖时,室外空气温度在5℃以上才能正常工作。
It can not only cool down, reduce humidity, but also make heat and heat. The heating mode can be divided into heat pump type and electric heating type. Heat pump air conditioning heating, outdoor air temperature above 5 degrees centigrade to normal work.
移动式:
Mobile:
它与窗式空调器的区别是采用水冷方式,冷凝水通过软管排出,可以在室内随意移动,不用安装。
The difference between it and the window type air conditioner is the water cooling method, the condensate is discharged through the hose and can be moved freely in the room without installation.
分体式:
Split style:
它由室内机箱和室外机箱组成,室外机箱组合了制冷系统中的压缩机、冷凝器和轴流风机等。
It consists of an indoor case and an outdoor chassis. The outdoor chassis combines the compressor, condenser and axial fan in the refrigeration system.
变频空调:
Inverter air conditioner:
是由电脑控制的变频器和变频压缩机组成的,它运用变频控制技术,使空调根据环境温度自动选择制冷、制热和除湿运转方式,使居室在短时间内迅速达到所需要的温度,并在低转速低能耗状态下以较小的温差波动,实现快速、节能和舒适的控温效果。
From computer control inverter and inverter compressor, it uses frequency conversion control technology, the air conditioning according to the ambient temperature automatic selection of refrigeration, heating and dehumidification operating mode, the room quickly reached the desired temperature in a short period of time, and at low speed and low energy state to a smaller temperature fluctuations, fast, energy saving the effect of temperature control and comfort.
水冷式:
Water cooling:
由室内盘管,室外机可以是水冷螺杆或冷却搭(这种也属于单冷式),机组里面的东东就不说了,四大部件你应该知道的吧。
By the indoor coil, the outdoor machine can be water-cooled screw or cooling tower (this also belongs to the single unit type), the stuff inside is not to say, the four major components you should know it.
风冷式:
Air cooling type:
室内盘管,室外机是风冷螺杆或模块机组。
Indoor coil, outdoor machine is air cooling screw or modular unit.
中央空调系统是由一系列驱动流体流动的运动设备(如水泵、风机及压缩机)、各种型式的热交换器(如风机盘管、蒸发器、冷凝器及中间热交换器等)及连接各种装置的管道(如风管、水管及冷媒管)和阀件所组成。系统一般可分下列五个循环 :
The central air conditioning system is sports equipment driven by a series of fluid flow (such as pump, blower and compressor), various types of heat exchangers (such as fan coil, evaporator, condenser and heat exchanger etc.) and pipeline to connect various devices (such as wind pipe, water pipe and refrigerant pipes and valves). The system can generally be divided into the following five cycles:
1、室内空气循环;
1, indoor air circulation;
2、冷水循环;
2, cold water circulation;
3、冷媒循环;
3, refrigerant cycle;
4、冷却水循环;
4. Cooling water cycle;
5、室外空气循环。
5. Outdoor air circulation.
中央空调系统——主要组成设备
Central air conditioning system - the main components
一、按负担室内热湿负荷所用的介质可分为:
1. The medium used for the heat and wet load in the room can be divided into:
1、全空气系统
1. All air systems
2、全水系统
2. All water system
3、空气-水系统
3, air water system
4、冷剂系统
4, the refrigerant system
二、按空气处理设备的集中程度可分为:
Two. The concentration of air treatment equipment can be divided into:
1、集中式
1, centralized
2、半集中式
2, semi centralized
三、按被处理空气的来源可分为:
Three. According to the source of the processed air, it can be divided into:
1、封闭式
1. Closed type
2、直流式
2, direct current
3、混合式(一次回风 二次回风)
3, mixed type (two return air of one return air)
主要组成设备有空调主机(冷热源) 风柜 风机盘管等等。
The main components of the equipment are air-conditioned host (cold and heat sources) wind cabinet fan coil and so on.
从本质上讲,均由空气处理设备,空气输送设备,空气分布装置三大部分组成。此外还有制冷系统,供热系统及自动调节系统。
In essence, it is composed of three parts of air treatment equipment, air transport equipment and air distribution device. In addition, there are refrigeration systems, heating systems and automatic regulation systems.
空气热湿处理设备空气热湿处理设备主要是对空气进行加热、加湿、冷却、除湿等处理。
Air heat and wet treatment equipment is mainly to heat, humidification, cooling, dehumidification and other treatment of air.
1)喷水室。在民用建筑中不再采用,但在以调节湿度为主要目的的纺织厂和卷烟厂空调中仍大量使用。
1) the water spray chamber. It is no longer used in civil buildings, but it is still used in air conditioning in textile mills and cigarette factories for the purpose of regulating humidity.
2)表面式换热器。冷却器、加热器、蒸汽盘管统称为表面式换热器。
2) surface heat exchanger. The cooler, heater and steam coil are known as surface heat exchangers.
a、盘管表面式换热器有光管式和肋管式两种。根据加工方法不同,肋片管又可分成绕片管、串片管和轧片管。
A and coil surface heat exchangers have two kinds of tube type and ribbed tube type. According to the different processing methods, the fin tube can be divided into the winding tube, the string tube and the rolling tube.
为了便于使用和维修,冷、热煤管路上应设截至阀、止回阀、过滤器、平衡阀、压力表和温度计等。在蒸汽加热器的蒸汽管路上还要设蒸汽调节阀门和疏水器。为了保证表面式换热器正常工作,在水系统的最高点应设排空气装置(如立式和卧式排气阀),而在最低点应设泄水阀门和排污阀门。
In order to facilitate the use and maintenance, the cold and hot coal pipelines should be set up as a valve, a check valve, a filter, a balance valve, a pressure gauge and a thermometer. There is also a steam regulating valve and a trap on the steam line of the steam heater. In order to ensure the normal operation of surface heat exchangers, air exhaust devices (such as vertical and horizontal exhaust valves) should be installed at the highest point of the water system, and at the lowest point, there should be drain valves and drain valves.
b、电加热器。它有结构紧凑、加热均匀、热量稳定、控制方便的优点。但是电加热器利用的是高品位的热能,它只宜在一部分空调机组和小型空调系统中使用。在恒温精度要求较高的大型空调系统中,也常用电加热器控制局部加热或作末级加热使用。
B, electric heater. It has the advantages of compact structure, uniform heating, stable heat and convenient control. But the electric heater is used for high grade heat, which is only used in some air conditioning units and small air conditioning systems. In the large air conditioning system with high constant temperature precision, the electric heater is also used to control the local heating or the last stage heating.
常用的电加热器有裸线式和管式两种。
Electric heaters are commonly used open wire and tube two.
为了确保安全,设计安装电加热系统特别是采用裸线式电加热器时,必须满足下列要求:
In order to ensure the safety of the design and installation of electric heating system especially the bare type electric heater, must meet the following requirements:
①电加热器宜设在风管中,尽量不要放在空调器内。
(1) the electric heater should be in the wind pipe, and try not to put it in the air conditioner.
②电加热器应与送风机联锁。
The electric heater should be interlocked with the fan.
③安装电加热器的金属风管应有良好的接地。
(3) the metal duct of the electric heater should have good grounding.
④电加热器前后各0.8m范围内的风管,其保温材料均应采用绝缘的不燃材料。
(4) the air pipes in each 0.8m range before and after the electric heater should be insulated materials.
⑤安装电加热器的风管与前后风管连接法兰中间须加耐热不燃材料的衬垫。
In the middle of the connection flange between the wind pipe and the front and back pipe of the electric heater, the lining of the heat-resistant and noncombustible material must be added.
⑥暗装在吊顶内风管上的电加热器,在相对于电加热器位置处的吊顶上应开设检修孔。
The concealed in the ceiling on the electric heater air duct, in relation to the position of the electric heater at the ceiling should open the manhole.
⑦在电加热器后的风管中应安装超温保护装置。
When the electric heater after the air pipe should be installed over temperature protection device.
3)常用空气湿处理设备。
3) common air wet treatment equipment.
空气的加湿方法一般有喷水加湿(湿膜加湿)、高压蒸汽加湿、超声波加湿、远红外线加湿等。利用蒸汽锅炉使水变成蒸汽和空气的混合过程为等温加湿过程。
Air humidification methods usually have water jet humidification (wet film humidification), high pressure steam humidification, ultrasonic humidification, far infrared humidification and so on. The process of mixing water into steam and air by steam boiler is the process of isothermal humidification.
a、等温加湿。
A, isothermal humidification.
①蒸气喷管和干蒸气喷管。
(1) steam nozzle and dry steam nozzle.
②干蒸汽加湿器。
(2) dry steam humidifier.
③电热式加湿器。
(3) electrothermal humidifier.
b、等焓加湿设备。直接向空调房间空气中喷水的加湿装置有压缩空气喷雾器、电动喷雾机、超声波加湿器。
B, isenthalpic humidification equipment. The humidifier, which is directly injected into the air of the air-conditioned room, includes a compressed air sprayer, an electric sprayer, and an ultrasonic humidifier.
c、空气的减湿。
C, air dehumidification.
①冷冻减湿机。在既需要减湿又需要加热的场所使用冷冻减湿机较合适。而在室内产湿量大、产热量也大的地方,最好不采
(1) the freezing and dehumidifier. It is more appropriate to use a refrigerated dehumidifier in a place which needs both humidification and heating. In the place where the moisture content is large and the heat production is large in the room, it is best not to pick up the place. |
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