产品名称：SideStreamSandFiltrationForRecirculatingWaterSystem

Product Introduction

By-pass filter for chilled water as a by-pass filtering equipment of closed industrial circulating water is used to filter the circulating chilled water and its control modes consist of manual backwash and automatic backwash. The system is generally backwashed once every three to seven days in the circulating process, effectively improving the quality of chilled water and ensuring excellent and stable water quality after intervention to long-term running. The device has small water consumption and is widely used in the cleaning of all types of industrial and commercial chilled water circulation system as well as refrigerant water and heat medium water systems of central air conditioning, improving the stability of equipment operation. Users may weld and conned in parallel the by-pass filters in main return pipes depending on the conditions of circulation system and the pipe diameter should be determined based on the retaining water yield of parallel circulating water. The sewage water is then discharged into the sewerage network.

What is a sand filter?

Sand filter is a great water purification equipment which use sand as filter media to remove suspended solids for irrigation water, cooling water, swimming pool water etc.

Sand filters use this simple but very effective method to give you the filtration you need to clean your water. Water enters sand filter and is channeled to the top of the filter and falls on a bed of sand. Filtered water then exits through laterals at the bottom of the filter and the trapped dirt in the sand is removed via periodic backwashing and infrequent sand replacement. This sand filter is easy to install and very simple to maintain.

Features:

 1. Manual or automatic control is available;

2. Water distributor is simple, uniform and reliable;

3. Finished water collector has high strength and long service life;

4. Easy to install. Only connect the inlet and outlet to the waste pipe when installing;

5. Less water consumption in backwash: A homogeneous filter is used, so that backwash cycle is

extended and the total backwash water volume is greatly reduced;

6. High backwash efficiency: An advanced water collector is used, ensuring efficient backwash effect.

Specification:

Working principle

For the by-pass filtration, the filter is installed in the main circulating pipeline to filter all the circulating water,but apart of the circulating water led from the main circulating pipeline is filtered, which is a repeated circulatininterception step by step to filter the impurities within the system and finally remove the impurities by thenecessary backwash out of the system. Installing a by-pass filter in the circulating water system can prevent the terminal pipe of device from sludge blocking and remove the impurities in the system with chemical dosing.

By-pass filtration is used to reduce the turbidity of the water circulation system, exactly, to reduce slime and prevent its deposition in the heat exchanger, so that the effect of agent will be better.

 Generally speaking, if your filter is a quartz sand filter, it usually has two main functions:

1. To reduce suspended solids (turbidity). Otherwise, as the system is running, suspended solids increases, which will exacerbate the deposition and other problems.

2. Degreasing. Especially the oily turbid circulation, such as steel rolling and continuous casting, has high oil content and is easy for breeding microorganism and blocking the nozzles.

Application:

Water treating, Raw water treating , Recycle water , Chilling water treat, Soft water treat

Agricultural irrigation ,such as Farms Water , Golf Water Filtration , Orchards and Groves Water Filtration , Vineyard Water Filtration  etc .

Papermaking factory

Steel and  lron plant

Petroleum Chemistry 

FAQ:

 01.  how small a solid needs to be removed,

02.  how dirty the water is,

03.  how the water will be used once it is filtered,

04.  and the source of backwash water needed to clean the filters.