亚洲午夜精品福利在线视频_国产一区二区三区在线观看福利_精品久久久久久久国产性色av_韩国伦理电影哪里看_三级黄色片成人_日韩欧美精品三级_中文字幕久久第一页久久_欧美黑人巨大xxxxxx视频

1、 Unit conversion of reverse osmosis membrane 1. Unit conversion of size, pore diameter, diameter, area and water yield of imported reverse osmosis membrane? A: in China's water treatment process, the length unit is generally expressed in mm, and the calibration unit of imported equipment nee...

Charging system of boiler water 1. Ammonia: adjusting pH value 2. Hydrazine: deaeration The two agents are pumped to deaerator through dosing to adjust pH value of feed water and remove oxygen in water. 3. Phosphate (trisodium phosphate) is added directly to the boiler drum. It also regulates pH...

Water is the source of life, water accounts for 70% of the human body composition. Scientific research shows that the average daily water demand of adults is more than 2500ml, which can be said that water quality is the basic guarantee of health. Turn on the tap and the tap water flows out slowly. ...

The first step preparation 1. Prepare all possible tools for construction Including: rubber boots, rubber gloves, protective glasses, wrench (remove the end cover of module housing), pipe clamp, glycerin, etc 2. Clean the upstream water inlet pipeline; 3. Carefully evaluate the quality of the in...

With the rapid development of the semiconductor industry, the requirements for semiconductor production technology are higher and higher. Semiconductor production has strict requirements on water consumption. The application of industrial ultra pure water equipment in the industry has played an impo...

Sanitary landfill is the most common domestic waste treatment technology in China. Through aerobic and anaerobic reaction, the inorganic substances and organic matter produced by decomposition in the waste will form the landfill leachate with rainwater, water brought by the garbage itself and the wa...

In sewage treatment plant, water pump is the most commonly used moving equipment, and also the movable equipment which is prone to problems. The treatment of pump failure should be based on specific problems and actual analysis, and the principle of "outside first and then inside" should be followed...

Water hammer effect, in the pressure pipeline, due to some external reasons (such as the sudden closure of the valve, the sudden stop of the pump unit), the water velocity changes suddenly, resulting in water hammer. This kind of hydraulic phenomenon is called water hammer or water hammer.

Shenzhen Hongjie water science and Technology Co., Ltd. specializes in R & D, production, sales, after-sales service, maintenance of water treatment equipment, Seiko quality, super long warranty, Guangdong strength manufacturers.

Reverse osmosis water treatment equipment is usually composed of raw water pretreatment system, reverse osmosis purification system and ultra purification post-treatment system. The main purpose of pretreatment is to make the raw water meet the requirements of reverse osmosis membrane separation mod...

If the reverse osmosis pure water equipment is stopped for a short time, the reverse osmosis membrane will remain in the pressure vessel of the reverse osmosis system. The maintenance methods are as follows:      1. Flush the RO system with water and pay attention to completely remove the gas in th...

At present, the production equipment of pharmaceutical industry is constantly improving. Due to the direct impact of pharmaceutical products on human health, the pharmaceutical industry is highly concerned, and its product quality is strictly monitored. The existing pharmaceutical industry uses ult...