Backwashing of the filter pool in the waterworks
The backwashing of the filter was an operation process in which the reverse flow of water was used to wash the filter layer to restore the normal operation of the filter. After the filter tank works for a period of time, there will be a situation where the trapped contamination will penetrate the filter layer and cause the water quality to deteriorate rapidly, or the filter layer's filtering resistance will increase to exceed the maximum permitted resistance. At this time, it is necessary to use the bottom-up reverse water flow to wash the filter layer, so that the filter layer can regenerate and the filter can work normally again. Different types of filter tanks have different backwashing intensity and backwashing time. For example, the backwashing intensity of an ordinary fast filter tank is 10 - 15 L/(s·m2), and the backwashing time is 5 - 10 minutes. The V-shaped filter was a new type of filter. During backwashing, the surface of the V-shaped groove was also swept. Read more exciting novels for free
Pre-filter, commercial backwashing
Backwashing filter for heating engineering
A backwashing filter for heating engineering, for example, includes a base, the upper side of the base is fixedly connected with a threaded disc, the upper side of the threaded disc is connected with a T-shaped filter cylinder, the outer wall of the threaded disc is threadedly connected with a shell, and the T-shaped end of the T-shaped filter cylinder is in sliding connection with the inner wall of the shell. A sealing ring can be connected to the upper side of the threaded disk around the T-shaped filter cylinder, and the sealing ring is in sliding connection with the inner wall of the shell. The upper side of the middle part of the threaded disc is connected with a bearing, the inner ring wall of the bearing is connected with a rotating column in a rotating manner, the outer wall of the rotating column is connected with a number of groups of fixing rings, one side of the fixing rings is connected with a fixing rod, the other side of the fixing rod is connected with a connecting rod, one side of the connecting rod, which is close to the T-shaped filter cylinder, is connected with a number of groups of brushes, and the brushes are in contact with the T-shaped filter cylinder. The upper side of the rotating column passes through the inner top wall of the shell, extends to the upper side of the shell, and is installed with a motor. The upper side of the motor is connected with an L-shaped plate and is fixed with the shell. A water intake pipe is installed on one side of the shell on the upper side of the T-shaped filter cylinder, and a water outlet pipe is installed on one side of the shell on the other side of the T-shaped filter cylinder, which is far away from the water intake pipe. This structure was convenient for the staff to replace the T-shaped filter cylinder when it was damaged to enhance the filtering effect. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How about Midea's backwashing filter?
Midea's pre-filter had many models and had certain advantages. There were a variety of models, including high-end and low-end products, and the price was mostly less than 1,000 yuan. For example, there was a model with a flow rate of 7T/h and a filter precision of 40 millimeters. There was also a household whole house tap water filter, water purifier, Galaxy water power backwashing, automatic scraping, super 8T, large flux, automatic cleaning, QZBW20S-11S, with dual drive water power, automatic scraping and washing 3000 revolutions, every minute hurricane washing, 6T large flux, fast water output, instant filtering, can meet the water needs of the whole family, suitable for flat floors and villas, and life-long free filter. In terms of flushing function, some models have automatic backflushing function. The advantage of automatic flushing is convenience. It can automatically flush and discharge according to the cycle and time set by the user without manual intervention, saving time and reducing the risk of forgetting to clean the filter. However, you should also consider your own needs when choosing. For example, if you want to install an automatic flushing filter, you need to reserve a socket at the installation place.(If you forget to reserve a socket, you can choose a pre-filter that doesn't require power or supports multiple charging methods.) The price may be higher than the manual flushing, but under normal use and maintenance, the automatic and manual flushing pre-filter's filtering effect is almost the same. Both use 40-millimeter filtering precision, and the probability of intercepting large particles can reach 98.57%. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Working principle of Chifeng carbon steel backwashing filter
The working principle of the carbon steel backwashing filter was as follows: water enters from the entrance, first passes through the coarse filter to filter out the larger particles of impurities, and then reaches the fine filter. During the filtering process, the fine filter gradually accumulated dirt and impurities in the water, forming a filter impurity layer. As the impurity layer accumulated on the inner side of the fine filter, a pressure difference was formed on the inner and outer sides of the fine filter. When the pressure difference of the filter reaches the pre-set value, the automatic cleaning process will begin. During this time, the clean water supply will be continuous. The cleaning valve will be opened, and the water pressure in the cleaning room and the sewage suction device will decrease greatly. Through the pressure difference between the filter cylinder and the sewage suction pipe, a suction force will be generated between the sewage suction pipe and the cleaning room through the suction mouth, forming a sewage suction process. At the same time, the electric motor drove the sewage suction pipe to do a spiral movement along the axis. The combination of the axial-direction movement and the rotating movement of the dirt sucker completely cleaned the inner surface of the entire filter screen. The entire rinsing process only took tens of seconds. The drain valve closes at the end of the cleaning and the filter begins to prepare for the next flushing cycle. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How does Midea's backwashing pre-filter backflush?
Midea's backwashing pre-filter backwashing steps were as follows: First, find the rotating button on the filter and turn it three times counterclockwise; then, find the drainage button and turn it 90 degrees; then, open the drain valve at the lower end of the filter and wait for 20 seconds before starting the backwashing; after the rinsing was completed, turn the knob three times to reset. At this time, the drain ball valve stayed for 20 seconds before turning the drain button to close the drain ball valve, restoring the normal water use state, and completing the filter backwashing. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The structure and bearing strength of the backwashing filter cap in Liao Ning
The backwashing filter cap is usually made of ABS engineering plastic, and the structure has many characteristics. The filter head structure has strengthened threads and added rubber cushions to make the connection firm and not easy to fall off. The base of the filter head was designed to strengthen the bottom gap, so that there was no dead water between the filter head and the filter plate, and no mud would accumulate. It has high bearing strength and cannot be broken when stepped on. It can effectively play a role in the backwashing device of the water distribution system at the bottom of the filter tank, which can not only prevent the yin and yang resin from flowing out, but also ensure the flow. This filter cap was widely used in water treatment filter, filter pool, softened water combination, loop, ion exchange column equipment and many other scenarios. It was suitable for drinking water treatment, and also suitable for beverages, dyeing, swimming pools and other industrial water. It could also be used in industrial waste water and domestic sewage treatment projects. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Bailizhou Waterworks
A new water plant was built in Bailizhou, located in Fujiadu, Bailizhou Town, Zhijiang, with a total investment of 65.6 million yuan. The water pumping station, settling tank, filter tank, and clear water tank in the water plant are arranged in order. The water resources are collected by fixed open caissons, stored in the clear water tank after settling, filtering, disinfection and other processes, and then supplied through the water distribution pipe network through the pressurizing pumping station. It adopted the process of "sieve plate coagulation pool + horizontal tube high-efficiency settling pool + V-type filter + disinfection", and the core settling technology was "horizontal tube high-efficiency settling separation technology", which could realize automatic production monitoring and management of the whole process, shorten settling time and reduce operating costs. The water plant was mainly responsible for the production and living water supply of Bailizhou Town. The water supply coverage was 229 square kilometers, and the daily water supply capacity was up to 28,000 tons. It could guarantee the water supply of 70,000 people in 42 villages (communities) of Bailizhou Town. The water supply penetration rate was 100%, and the comprehensive water quality qualification rate was above 99%. Its use had improved the water volume, water pressure, and quality of the tap water in Bailizhou Town, effectively solving the problem of insufficient water supply during the peak of water consumption, and improved the quality of residents 'living water and the safety of Bailizhou Town's water supply. The novel "Listening to the Rain in Green Bamboo and Watching the Egrets" is equally wonderful. Everyone is welcome to click and read it!
The Complete Collection of Waterworks
Based on the information provided so far, it was difficult to give a complete collection of water delivery novels. However, it mentioned Lin Yuhe's novel, The Water Delivery Man, and Wang Kaili's novel, The Water Delivery Man. There might be more such novels in literature, but they would need to be searched through specialized novel search engines or literature database. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What is backwashing in filtering?
During the filtering process, as the suspended substances and particles in the sewage were captured by the filter media, dirt and impurities would gradually accumulate on the filter media, resulting in a decrease in the filtering efficiency, an increase in head loss, a deterioration in water quality, and possible occurrence of an anaerobic decay phenomenon. Backwashing was an operation to solve these problems. It was a high-speed water flow washing process in the opposite direction of gravity flow filtering. The purpose of backwashing is to remove the dirt and impurities on the filter media to maintain the filtering efficiency, extend the service life of the filter media, restore the working performance of the filter, restore the dirt holding capacity of the filter material layer, and avoid the occurrence of the phenomenon of oxygen decay. There are several backwashing methods commonly used in the particle filter bed: 1. After the filter material was flushed into a suspended state, the suspended matter was washed down by the high-speed water flow between the filter materials and carried away by the backwashing water. 2. Backwash with water to assist with surface rinsing. The surface washing water is on the filter layer, and the washing water is sprayed out from the spray mouth, so that the sand grains are well stirred, so that the suspended matter is easier to fall off, and the washing water can be saved at the same time. 3. Backwash with water to assist with air scrubbing. Usually, before the start of the water backwashing cycle, compressed air was introduced to stir the filter material. At the same time, the suspended matter was washed away by backwashing water, which could save the amount of washing water. 4. The combined air-water flushing method was mostly used in single-layer filter beds. In addition, when to carry out backwashing can be determined according to the water quality characteristics of the raw water and the requirements of the water quality of the discharged water, using standards such as limiting the head loss, the quality of the discharged water, or the time of filtering. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Backwashing Steps of the Lube Oil Cooler
The backwashing steps of the oil cooler are as follows: First, close the oil cooler's valve at the entrance and exit, open the oil cooler's drain valve, and discharge the sewage. Then, open the oil cooler's backwashing valve, inject the cleaning fluid into the oil cooler, and maintain a certain pressure to make the cleaning fluid circulate inside the oil cooler. Next, if necessary, a high-pressure water gun could be used to rinse the oil cooler to remove the dirt. Finally, close the backwashing valve of the oil cooler, open the valve at the entrance and exit, and discharge the cleaning liquid to complete the backwashing of the oil cooler. There was also an oil cooler backwashing procedure: (1) Close the throttle first, then slowly open the entrance throttle and the top vent valve, filling the oil side with oil. Close the air vent valve when oil flows out, then open the outlet throttle and pay attention to the change of oil pressure;(2) Open the oil cooler's entrance water gate, slightly open the air vent valve at the side of the water cooler, and then close it after exhausting the air. He slowly opened the water gate. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>