人妻少妇精品视频一区二区三区,中国老熟女分类hd,国产精品美女久久久m,中文字幕无线码免费人妻,gogogo高清在线观看免费,国产又大又粗又爽的毛片,亚洲日本va午夜在线影院,国产高清女同学巨大乳在线观看
[What are the types of cooling towers? What are its advantages and disadvantages?]
Release date:[2019/6/10] Is reading[665]次

What are the types of cooling towers? What are its advantages and disadvantages?


Today, Jincheng Chemical Fiber Industrial Air Conditioner introduces three types of cooling towers and their advantages and disadvantages. The application range of different types of cooling towers is different. Want to know more details? I will introduce it to you next.


1. Natural ventilation cooling tower

The less dense hot air flows out from the top of the cooling tower;

The denser cold air enters the cooling tower from the bottom of the tower;

No fan required;

Concrete tower <200 m;

Used for cooling of large heat.


2, mechanical ventilation cooling tower

High-power fan forced air to exchange heat with circulating water;

The water film on the surface of the packing can maximize heat exchange with the air;

There are many determinants of cooling efficiency;

Multiple cooling capacity options;

Multiple cooling towers can work simultaneously, such as 8-tower joint control.


Forced ventilation: Air is blown into the vent by a centrifugal fan; Advantages: Suitable for towers with high airflow resistance; centrifugal fan noise is relatively small.


Countercurrent cooling tower:


The cooling water is sprayed onto the packing and flows down into the cooling water tank.

The air is forcibly blown from the bottom, and the part of the cooling water is evaporated in contact with the water in the filler to lower the water temperature.


3. Induced ventilation cooling tower


Cross flow induced draft cooling tower

Countercurrent induced draft cooling tower


Advantages: The degree of recirculation is lower than that of a forced draft cooling tower; the operating cost of the fan is less than that of a forced draft cooling tower.


Disadvantages: Mechanical transmission of fans and motors requires a waterproof design.

1) Hot water enters the cooling tower from the top

2) Air is forcedly induced by a fan and enters the cooling tower from the bottom; a forced induction fan is used.


Cooling water enters from the top and flows through the packing layer; air enters from one or both sides, inducing the fan to flow air laterally through the packing layer.


Due to the hot water natural flow distribution system of such cooling towers:


Advantage:

Low water pump head;

Lower initial investment in pumps;

Lower annual operating energy consumption and costs;

When the flow changes greatly, it will not adversely affect the water distribution system.


Disadvantages:

The low pressure head will cause the nozzle to be easily blocked and the cooling water will not be well dispersed into a fine mist;

Direct exposure of the hot water tank to the air can cause algae to grow;

Large footprint.


Because of the pressurized water spray device in this type of cooling tower:


Advantage:

Longer heat exchange process and smaller cold amplitude by increasing the height of the tower;

Since the pressurized spray device can eject smaller water droplets, the heat exchange efficiency is higher.


Disadvantages:

The system pump head is increased;

Increased energy demand and increased operating costs;

The cooling water nozzle is not easy to maintain and clean;

A water distribution system and associated piping are required, so initial investment increases.


Jiangsu Jincheng Air Conditioning Engineering Co., Ltd. is a comprehensive manufacturer specializing in the design, production, installation and commissioning of complete air conditioning equipment such as chemical fiber, textile, electronic workshop clean room and medical clean room.


Jincheng mainly produces JCZK modular air conditioning units, cooling towers, galvanized sheets and stainless steel ventilation ducts, refrigerators, polyurethane ventilation ducts and other air conditioning accessories. Jincheng Industrial Air Conditioning is favored by users because of its wide variety, wide variety, unique products and superior performance.


Jiangsu Jincheng Air Conditioning Engineering Co., Ltd. focuses on:


Industrial air conditioners, chemical fiber industrial air conditioners, chemical fiber industry refrigeration, textile industry air conditioners, clean room refrigeration, ventilation ducts, cooling towers, refrigeration machines and other air conditioning units and accessories.


If you want to know more about the product, please contact: Mr. Song 13705113637 Website: http://www.taocunbao.cn/


Keyword:
ADD:No. 18, Rongguang Road, National High-tech Park, Yancheng City, Jiangsu Province Phone: 0086-13705113637 Tell: 0086-0515-88809180 Fax: 0086-0515-88809181 E-Mail: jsjckt@126.com
Copyright ? 2018 All rights reserved
Copyright Jiangsu Jin Cheng Air Conditioning Engineering Co.,Ltd 技術支持:中國丙綸網
主站蜘蛛池模板: 把女人弄爽特黄a大片3人| 色婷婷av一区二区三区| 在线观看无码不卡av| 噜噜噜亚洲色成人网站| 欧美乱强伦xxxx孕妇| japanese人妻中文字幕| 蜜桃电影网| 热久久99这里有精品综合久久| 国产精品va无码一区二区| 色吊丝av中文字幕| av观看| 国产精品人妻一区夜夜爱| 黑人特级欧美aaaaaa片| 激情国产一区二区三区四区| 国产精品久久久久久久| 野花3观看免费观看视频| 中文字幕亚洲无线码一区女同| 久久综合久久自在自线精品自| 一边摸一边做爽的视频17国产| 脱了美女内裤猛烈进入| 特种兵初尝禁果h高肉1v1| 国农村精品国产自线拍| 成在线人免费视频| 免费人成网站在线观看不卡| 黑人video粗暴亚裔| 亚洲乱码一二三四区| 狠狠亚洲婷婷综合色香五月| 欧洲成人午夜精品无码区久久| 久久www香蕉免费人成| а√天堂中文在线资源库免费观看| 国产乱码一区二区三区| 少妇高潮太爽了在线观看| 中文字幕无码人妻少妇免费视频| 美女内射毛片在线看| 亚洲中文字幕不卡无码| 韩国论理电影| 伊人婷婷色香五月综合缴缴情| yy6080久久伦理一区二区| yy111111111少妇影院| 国产传媒片免费观看| 久久精品国产99精品国产2021|