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机房对新风处理的要求:
发布时间: 2017年08月15日 | 次浏览 | 分享到:

1.洁净度:高于50万级的洁净度(大于0.5um的粉尘粒子,不于18000粒/升);室外大气一般含尘量为百万级至千万级之间,因此,相应的过滤器净化效率应90%以上,因此新风的净化效率至少在中效以上,即配置的过滤器至少是中效以上;

1. cleanliness: higher cleanliness level 500 thousand (dust particles, not more than 0.5um in 18000 grains / L); outdoor air dust content is generally between one million to ten million so efficiency should be more than 90% corresponding purification filters, so the air purification efficiency at least in effect to, namely configuration the filter is in effect at least above;

2.安装形式:根据现场情况灵活选择哪一种安装方式的新风机:

2. installation form: according to the scene, choose which installation method flexibly:

1) 外墙可以较灵活的开新风采集口的,可以选择柜式新风机;

1) the outer wall can be more flexible to open a new wind to collect the mouth, you can choose the cabinet type fresh air machine;

2)吊顶空间较大的,可以选择吊式新风机;

2) the ceiling space is larger, you can choose to lift new air machine;

3)空间面积充裕的可以采用新风小室形式。

3) the space area can be used in the form of a new wind chamber.

4)尽量采用柜式新风处理系统,这样新风机的工作状态直观,操作维护都方便,免得未来使用中的很多麻烦。

4) try to adopt the cabinet type fresh air handling system, so that the working state of the new air blower is intuitive, and the operation and maintenance are convenient, so as not to cause much trouble in the future use.

3.温度:新风处理后引入室内的温度应与室内回风温度相仿,才不至于较大影响室内温度,造成局部的冷热不均。

3. temperature: after the introduction of fresh air treatment, indoor temperature should be similar to the indoor air return temperature, so as not to greatly affect the indoor temperature, resulting in partial cold and hot uneven.

1)现在较多的做法是将新风直接和专用空调回风混合后送入室内,现在机房专用空调大 多为下送上回型,将新风混全回风后即对新风做了温湿度处理也不会引起机房内局部 温差较大的问题;

1) now more practice is to direct and special air conditioning air mixing air into the room, room for air conditioning now mostly under the back, will return to full fresh air mixed after the air temperature and humidity treatment will not cause the larger local temperature difference inside the room;

2) 另一种就是配置温度预处理型新风机,主动对新风做温度处理,最大限度的保障新风温度和机房内的回风温度接近。

2) and the other is to configure the temperature of new air conditioning machine, the initiative to do the temperature treatment of fresh air, to maximize the protection of fresh air temperature and the temperature of the air return to the room.

4. 湿度:新风是影响室内湿度的主要因素风的引进直接相关,新风的湿度采用单独处理是较好的方式。

4. humidity: fresh air is the main factor affecting indoor humidity. The introduction of wind is directly related, and the humidity of fresh air is better treated by separate treatment.

5.风速:

5. wind speed:机房对新风处理的要求:

1)直接送风时,风速不应超过3m/s;室内气流速度大致不得超过1m/s(不准确);进风口风速不得超过3m/s;

1) direct wind blowing, the wind speed should not exceed 3m/s; indoor air velocity generally should not exceed 1m/s (inaccurate); in wind speed of not more than 3m/s;

2) 总风量÷3600(每小时换算到秒)÷3 = 风管截面积

2) / 3600 (the total air volume per hour conversion to seconds) 83019 3 = wind pipe cross-sectional area

3) 可根据截面积判断所做风管的尺寸。以800风量的新风机为例:

3) the size of the air duct can be determined according to the sectional area. Take the new air blower with 800 air volume as an example:

4) 800÷3600÷3 = 0.074 则风管可以做到350*200的大小,也可以做到400*200的大小,只要保障截面积和所算得风管截面积相近即可。

4) 800 / 3600 / 3 = 0.074 wind pipe can do the size of the 350*200, can also be the size of the 400*200, as long as the security area and the calculated wind pipe cross-sectional area should be close to each other.

6. 气流组织:

6. airflow structure:

1) 合理的气流组织才能达到机房内有效的通风;气流组织的基本原则是全面通风不留死角;特别要注意:新风口应避开排风口,否则有可能引起机房内的死循环,即新风引进后直接被排风排走;

1) reasonable air distribution in order to achieve effective ventilation within the room; the basic principle of airflow is the overall ventilation does not stay dead; pay special attention to the new air outlet should be avoided, or they may cause dead circulation within the room, that is after the introduction of fresh air is directly discharged exhaust;

2) 新风口开置位置也不能离门口过进,否则也有可能造成送风的循环不好;

2) the opening of the new air outlet can not enter the entrance, otherwise it may cause the circulation of the air supply to be bad;

3) 新风口设置位置一定要整体考虑机房内的整体情况,原则上每40-60平米开设一个新风口比较合理。

3) the new air outlet setting position must consider the overall situation in the engine room as a whole, in principle each 40-60 square meters open a new air outlet to be more reasonable.

7. 消防防火:安装防烟防火阀,与消防自控系统联动;

7. fire prevention: installation of smoke prevention fire valve, and fire automatic control system linkage;

8. 与其他机房子系统的配合,尤其与空调系统的配合;

8. coordinate with other machine house system, especially with air conditioning system;