空气净化工程的7个特点
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- 发布日期：2017-04-13 17:06:59
众所周知，工厂选址、总平面设计、车间布局、设备选择以及生产和产品质量的管理等这些“大问题”都是生产企业保障生产环境达到洁净标准，防止污染与交叉污染等要求的重要措施。但是，在空气净化工程 http://www.jnjkjh.com/ 的设计和实施中，有一些细节也需要下工夫做足文章，否则很可能“千里之堤，溃于蚁穴”，花费巨大财力和精力建成的工程会因为一个风管的不合适或者人员的走动而达不到预期效果，影响产品质量。
As we all know, the plant location, the total layout design, the layout of the workshop, the choice of equipment and the management of production and product quality are the important measures to ensure the production environment to meet the requirements of clean standards, to prevent pollution and cross contamination. However, in air purification engineering design and implementation, there are some details also need time to do the, or is likely to "thousands of miles of dikes burst in the colony", spend a lot of money and effort to build the project will because a wind pipe of inappropriate or personnel walk and reach the expected effect, affecting the quality of the products.
1 风管要求经济与效率并重
1 wind pipe requires both economy and efficiency
在集中或净化空调系统中，对风管的要求是既经济又能有效地送风。前者要求体现在价格低廉，方便施工，运行成本，内表面光滑阻力小。后者是指严密性好，不漏气，不发尘，不积尘，不污染，可耐火、耐腐蚀、耐潮湿。
In a centralized or purifying air conditioning system, the demand for the wind pipe is both economic and effective. The former is reflected in the low price, convenient construction, operating costs, the inner surface smooth resistance. The latter refers to the strict good, no leakage, no dust, no dust, no pollution, can fire, corrosion resistance, moisture resistance.
在运行中，有时候管件的局部阻力大大高于风管的沿程阻力，这种状况需要改善。管件主要有弯头、变径管三通及四通管。弯管的中心曲率半径应大于矩形风管的边长，圆形则采用1.25倍直径。大断面风管应在管内加导流片，以减少阻力。而在实际安装施工中，较少如此处理。对于变径管，不可突然变径，宜作成渐扩（缩）管，渐扩管每边扩展角应大于15°，渐缩管则每边收缩角不大于30°。矩形风管的三通要顺气流弯管弯曲分流，支管也应有一定的曲率半径。若要90°角分流，则应在弯头内加导流片。
In operation, the local resistance of the pipe is much higher than that of the wind pipe, which needs to be improved. The main pipe elbow, tube and pipe three through four. The center of curvature radius elbow should be greater than the length of the rectangular duct, is 1.25 times of the diameter of circular. A large section of the wind pipe should be added in the tube to reduce the resistance. And in the actual installation construction, less so. For reducing pipe, do not suddenly diameter should be made gradually expand / shrink tube, diffuser on each side of the expansion angle should be greater than 15 degrees, tapered tube every edge contraction angle is less than 30 degrees. Rectangular duct three to same flow pipe bending pipe diversion, should also have a radius of curvature. To 90 degree angle of diversion, should be in the elbow and diversion.
2 空调净化需关注节能
2 air conditioning purification need to focus on energy saving
空调净化是能耗大户，设计与施工中需关注节能措施。在设计中，系统及区域的划分，送风量计算，温度与相对温度的确定，洁净级别与换气次数的确定，新风比，风管保温，风管制作中的咬口形式对漏风率的影响，干管支管连接角度对气流阻力的影响，法兰连接是否漏风等以及空调箱、风机、冷水机组等设备选择无一不与能耗有关，所以，这些细节必须要考虑到。
Air conditioning purification is a large energy consumption, design and construction of the need to pay attention to energy saving measures. In the design, the system and the regional division, calculation of air quantity, determination of temperature and relative humidity, determination of clean level and frequency of ventilation, fresh air ratio, wind pipe insulation, wind pipe making bite on the influence of air leakage rate, dry pipe branch pipe is connected with angle influence on gas flow resistance, flange connection air leakage and air conditioning box, fan, chillers and other equipment is not related to energy consumption, so these details must to take into account.
3 依据气候条件选空调箱
3 according to the weather conditions, air conditioning box
关于空调箱的选择，应考虑所处的气候环境。如在冬季气温低、空气含尘量大的北方地区，则应在通用的空调机组上增设新风预热段，采用淋水式空气处理方式，使其既对空气洗尘又使其产生热温交换达到所要求的温、湿度。而在气候湿润，空气含尘浓度较低的南方地区，则冬季也无需对新风预热，对空气的过滤及温、湿度的调节则采用初效过滤，表冷面调节温湿度，也可加强温减湿工序，再经中效过滤和终端高效或亚高效过滤。空调箱配套风机最好采用变频风机，这不仅节能，还可灵活调节风量风压。
Regarding the choice of air conditioning, the climate environment should be considered. As in the low winter temperatures, air containing large amount of dust in the northern region of, add fresh air preheating section in the general air conditioning units, using spray type air treatment, making it both on air reception and the generated heat exchange to achieve the required temperature and humidity. And in the humid climate, the air containing dust concentrations were lower in the south of China, winter is no need to preheat the air, the air filter and the temperature and humidity regulation by primary efficiency filter, cold temperature and humidity regulation, also can enhance temperature and humidity reduction process, the medium efficiency filtering and terminal, or sub high efficiency filter. Air conditioning box supporting the best use of frequency conversion fan, which is not only energy saving, but also can adjust the wind pressure.
4 电话和火警设备不能少
4 telephone and fire equipment can not be less
空气净化工程设置电话，对讲电话，可以减少人员在洁净区走动，减少发尘量，也可在万一发生火灾时及时与外部联系，也为正常工作联系创造条件。此外，还应设置火灾报警系统，防止火情不易被外部发现而造成重大经济损失。
Air purification engineering setting up telephone, intercom can reduce staff in a clean area around, reduce dust capacity, in the case of fire timely contact with the outside for normal work to create the conditions. In addition, should also set the fire alarm system, fire prevention is not easy to be found outside and cause significant economic losses.
5 多机冷水机组更灵活
5 multi machine cold water unit is more flexible
冷水机组如果要求较大的制冷量，不宜选用单机，宜采用多机制，电机宜用变频调速，以降低起动功率。多机可以灵活使用，不至于出现“大马拉小车”的浪费能源现象。
Cold water unit if the requirements of a large amount of refrigeration, not suitable for the use of a single machine, should adopt a multi mechanism, the motor is advised to use frequency conversion, to reduce the starting power. Multi machine can be used flexibly, not to appear "big horse pull car" the waste of energy phenomenon.
6 自控装置保证全程调节
6 automatic control device to ensure full adjustment
目前，有的生产厂家采用手动方式进行控制风量和风压的调节，但由于控制风量和风压的调节阀均在技术隔层，而且吊顶也都是彩钢板的软吊顶，基本上都是在安装调试时调好，此后，大都没再调节过，实际上也无法调节。为确保洁净厂房的正常生产和工作，应设置一套较完整的自控装置，实现以下功能：洁净室空气洁净度、温湿度、压差监控、风阀调节；高纯气体、纯水和循环冷却水的温度、压力、流量的检测；气体纯度、纯水水质的监测等。
At present, some manufacturers use manual control regulation of air volume and pressure, but due to the control of air volume and pressure regulating valve were in technical barriers and ceiling are also soft ceiling color steel plate, basically is in the installation and commissioning of a good tune. Since then, most of them didn't regulate the, in fact, can not be adjusted. Set up a set of relatively complete automatic control device, to achieve the following functions: clean room air cleanliness, temperature and humidity, pressure monitoring is poor, adjusting air valve; the detection of high purity gases, pure water and circulating cooling water temperature, pressure, flow; gas purity, water quality monitoring etc., should be to ensure the normal production and work of the clean workshop.
净化空调系统的空气过滤器随运行时间的增加，阻力增大，为保持风量则需调节系统中的风阀。在统调试时系统启动时，为使风机空载启动，则需将风机出口处风阀关闭，风机启动后，因风阀上承受很压力，开启十分困难。采用空气过滤器前后压差的变化控制风机的变频调速装置后，送风量的调节会变十分容易，送风压力稳定。
Air filter of the air filter of air conditioning system increases with the running time and the resistance increases, and the air valve is required to maintain the air flow. In the system when the system starts to start, to make the wind turbine no-load start, you need to wind turbine outlet valve is closed, the wind turbine is started, due to the pressure on the wind valve, open very difficult. With the change of pressure difference between the air filter and the air filter to control the frequency conversion speed regulation device of the wind turbine, the adjustment of the air quantity is easy to be adjusted, and the air pressure is stable.
这些监控装置可设计成单个系统的测量，控制系统，也可设计成集散式计算机控制和管理系统。净化空调系统在风机停转无风或超温时，电加热器会继续送电加热，造成设备损坏甚至发生火灾，为避免这种情况的出现，应设置无风以及超温断电的保护。
The monitoring device can be designed as a single system of measurement, control system, can also be designed into a distributed computer control and management system. Purifying air conditioning system in fan stop turn no wind or over temperature, the electric heater will continue to send electric heating, caused by damage to the device even in the event of a fire, in order to avoid the emergence of this situation should be calm and over temperature shutdown protection settings.
7 空调机房宜在洁净室侧面
7 air conditioning room should be in the side of the clean room
空调机房的位置，其位置宜在洁净室的侧面，这不但可以节能，也有利于风道的布置，并使气流组织更加合理，同时，可以节省工程费用。
The location of the air conditioning room, its position should be in the side of the clean room, which can not only save energy, but also conducive to the layout of the air duct, and the air flow organization is more reasonable, at the same time, can save the cost of the project.
