Basic Info.
Usage
Environmental Protection, Chemical Industry
Motive Force
Electric power
Performance
Sophisticated Filters
Applicable Temperature Range
≤ 220ºC
Inlet and Outlet Calibres
50
Discharge Outlet Diameter
25
Transport Package
Wooden Box Type
Product Description
Backwashing industrial filters for wastewater treatment plants
Product Description
One.Overview
In general filtration devices, as the filtration process continues, the solid phase impurities in the liquid are retained on the surface of the filter element, causing an increase in pressure drop, an increase in filtration resistance and a decrease in filtration efficiency. At this time, it is generally necessary to interrupt the filtration operation, replace the filter element or take it out for cleaning, which is time-consuming and laborious, affecting the treatment efficiency.The new JSLS automatic backwashing water filter is a good solution to this problem, as it has the advantages of continuous filtration, automatic backwashing and drainage, compact structure, smooth and reliable operation, large capacity, low running costs and long service life.
The cleaning and draining process of JSLS type automatic water filter is carried out automatically during the operation of the equipment, and the filtering operation can still be carried out while backwashing and draining, without affecting the normal water supply. This filter is mainly used for coarse and fine filtration of power station auxiliary cooling water, industrial circulating water, fire-fighting water, washing liquid and other similar suspended liquids.
Two.Machine construction and working principle
1. Machine structure
The sketch of the water filter structure is as follows:
The drive device is composed of motor and reducer, which drives the transmission shaft to rotate at a low speed, and has the characteristics of large torque, high reliability etc.
If an accidental blockage occurs and the torque exceeds the maximum design value, the electrical protection system will automatically stop and send an alarm signal.
The filter elements are fixed to the intermediate disc and are evenly distributed on the inner and outer circumference to ensure maximum filtration area within the fixed shell volume. Each filter element (cartridge) is cylindrical and uses wedge-shaped cross-sectional corrosion-resistant steel wire strips welded to the upper and lower heads, the interval of each wire strip is evenly arranged with equal gaps according to the requirements of filtering precision, and there are also multiple ring hoops welded in the length direction, the cartridge not only has sufficient rigidity and strength against deformation, but also can strictly guarantee the precision of filtration. Backwashing device backwashing device consists of a rotating arm and sealing mechanism, connected to the drive shaft, is the only rotating part in the machine, low speed, smooth operation, while using a special mechanical seal structure design, with good sealing performance, wear and tear automatic compensation function, to ensure the smooth realization of backwashing and the normal and reliable operation of the machine. The differential pressure controller introduces a double contact differential pressure controller with a bellows type sensor for neutral gases such as air, gas and water vapour and liquid media such as water, oil and refrigerant. The controller has an adjustable set value and an adjustable range of 0.02 to 1.6 MPa and a working pressure range of 0.05 to 2.5 MPa.
The blowdown valve technology of connecting the electric blowdown valve with the blowdown pipe mouth and the electric ball valve produced by key parts are especially suitable for the filter residue with large silt content, which will not be leaked due to torque overload or lax closure, and at the same time, it has the advantages of reliable use and long service life.
2.Working principle
Both the filtering and backwashing propulsion of the machine are provided by the raw water pressure head or pump lift. The pressure in the filter chamber of the system remains basically constant, the liquid flows outwards from the inner chamber of the filter element and the entrained solid impurities are intercepted on the inner surface of the filter medium, causing the pressure difference between the inner and outer chamber to rise and the filtering resistance to increase gradually.
When the pressure difference between the inner and outer cavity exceeds a certain setting value of the differential pressure controller, the differential pressure controller sends out a signal to control the motor to start, driving the backwashing arm to rotate and opening the electric drain valve at the outlet of the drainage pipe at the same time.
When the backwashing arm turns to the bottom of a certain cartridge, the backwashing filter washing line is connected to the inner cavity of the cartridge, and the difference between the pressure of the clear phase of the filtrate and the atmospheric pressure pushes the filtrate backwards through the filter medium, so that on the one hand the filter medium is flushed and on the other hand the dirt is automatically discharged. When the backwashing arm rotates for one week, each filter element (cartridge) is backwashed and regenerated once, and so on. Therefore, frequent replacement of the filter media or manual cleaning of the filter elements is avoided, which improves the production efficiency and saves a lot of time, labour and financial resources. Different precision requirements can be met through the selection of filter media, generally up to 10μm or even higher. The whole filtration and backwashing process is controlled automatically without manual participation. The backwashing action is controlled by a differential pressure signal generator (the size of the differential pressure reflects the degree of blockage of the cartridge) and the backwashing time is regulated by a time relay. During the cleaning process, the cleaning area takes up a very small part of the total filtering area and the flushing pressure difference is large, so that the amount of backwashing liquid is small, the filtering process remains continuous, fluctuations are small and the flushing efficiency is high. The only rotating part in the machine is the backwash arm, which has a low speed and smooth operation, as well as an automatic compensation function for wear and tear, good sealing performance and low maintenance costs.
Three, performance characteristics
3.1 Automatic cleaning:
The machine uses the clear liquid from its own filtration to automatically backwash the cartridge, without removing the cartridge for cleaning and without the need for a separate cleaning system.
3.2 Continuous water supply:
The machine is equipped with several cylindrical cartridges working simultaneously in the tank, and each cartridge is cleaned one by one when backwashing, while the other cartridges are still filtering continuously, which can ensure the continuous supply of filtrate.
3.3 Low water consumption for backwashing:
The machine only cleans one or two cartridges at the same time when backflushing, accounting for a tenth to a twentieth of the entire number of cartridges, so the water consumption of the discharge is less than 5% of the design flow, which is more than double that of the traditional structure.
3.4 Large filtering area:
As the tank is arranged with multiple cylindrical cartridges, the space of the container is fully utilized, and the effective filtration area can reach 3-5 times of the inlet area, which is about twice as much as the traditional structure.
3.5 Good backwashing effect:
As the cartridge gap adopts a wedge-shaped structure, solid impurities are retained on the surface without blocking the gap, while the flared mouth forms a jet, which has a good backwashing effect.
3.6 High strength of the cartridge:
As the cartridge is welded with stainless steel wire strips, and there are also multiple ring hoops welded in the length direction to strengthen it, the cartridge has sufficient rigidity and strength against deformation under the premise of ensuring the precision of filtration.
3.7 Reliable sealing mechanism:
This machine has changed the traditional design, the cartridge is fixed and the drainage fork tube is used to rotate, and the upper end of the fork tube is equipped with a specially designed mechanical seal, and the contact part with the fixed partition is made of high alloy material, which is resistant to wear and tear, and at the same time, it ensures proper specific pressure and reliable seal.
3.8 High degree of automation:
In order to meet the increasing requirements of power station automation, the control system of this machine adopts imported electrical components and programmable controller (PLC) control, backwashing can be switched automatically (timing, differential pressure) and manually, and it is easy to realize remote monitoring and convenient to connect with the upper computer
IV. Installation, operation and maintenance of the machine
1,Installation:
The following points should be noted when the machine is installed:
(1) Before installation, the machine should be cleaned and decontaminated.
(2) The sealing parts must ensure that there is no leakage.
(3) All transmission parts are required to run flexibly, and the supporting bearings should be filled with calcium and sodium grease.
(4) The coupling should be solid and reliable.
2,Operation
When the machine is running with water, check the tightness of the joints, the lubrication of the lubrication points, the leakage of the seals and the operation of the transmission mechanism. If loose, poor lubrication and leakage are found, the machine must be re-fastened, re-lubricated and the seal ring replaced; if vibration and noise are found in the transmission mechanism, the transmission mechanism must be re-adjusted until all abnormalities are removed.
This machine adopts programmable control (PLC), backwashing action can have manual and automatic state, these two working states can be switched by the following methods;
manual backwashing, when the switch is placed in manual, at the set time interval or according to the pressure difference, press the backwashing motor start button on the control box, the main machine runs, at this time the electric valve opens at the same time, backwashing is carried out, when the differential pressure returns to the normal range When the differential pressure returns to the normal range, press the backwashing motor stop button, then the backwashing electric valve closes at the same time and the backwashing is completed. Automatic backwashing, the machine is equipped with differential pressure controller, when the switch is in the automatic position, the machine is in the automatic working state, the differential pressure value of the differential pressure controller and the switching difference can be set by the user.The specific setting method is: the user sets a differential pressure value according to the allowable pressure drop in the pipeline, and then sets the switching difference according to the backwashing time requirement. When the differential pressure reaches the set value, the main motor starts and the drain valve opens to start backflushing.
To regularly open the manual drain valve at the bottom of the machine to discharge the impurities accumulated in the tank.
3. Maintenance:
(1). Regularly check if there are any abnormalities in the work of the transmission parts and lubricate the bearings with calcium and sodium based grease.
(2). Regularly check the sealing parts, if leakage is found, the sealing components must be replaced.
(3). Regularly check the clear liquid, found that the solid phase particles exceed the standard, must stop to check whether the filter element is damaged.
Detailed Photos
Product Parameters
| Model/parameters | Design flow
(m³ /h) | Inlet and outlet calibres
(mm) | Discharge outlet Diameter
(mm) | Speed reducers
| Reducers Output speed
(rpm) | Drain valve Power
( kW) |
| Kw | MOdel |
| JS-50 | 22 | 50 | 25 | 0.37 | JSJ-32 | 3 | 0.05 |
| JS-80 | 55 | 80 | 40 | 0.37 | JSJ-32 | 3 | 0.05 |
| JS-100 | 85 | 100 | 50 | 0.37 | JSJ-32 | 3 | 0.05 |
| JS-150 | 192 | 150 | 65 | 0.55 | JSJ-42 | 2 | 0.09 |
| JS-200 | 340 | 200 | 80 | 0.55 | JSJ-42 | 2 | 0.09 |
| JS-250 | 530 | 250 | 80 | 0.55 | JSJ-42 | 2 | 0.09 |
| JS-300 | 760 | 300 | 80 | 0.55 | JSJ-42 | 2 | 0.09 |
| JS-400 | 1360 | 400 | 100 | 0.75 | JSJ-53 | 1.5 | 0.09 |
| JS-500 | 2120 | 500 | 125 | 1.1 | JSJ-63 | 1.2 | 0.25 |
Company Profile
Lianyungang Jiusheng Electric Power Auxiliary Machinery Co., Ltd.
a national high-tech enterprise, is located at the foot of Jinping Mountain and beside the Qiangwei River. The factory is located in Lianyungang City, Jiangsu Province, the intersection of the the Belt and Road, and the east bridgehead of the Eurasian Continental Bridge.
It is adjacent to the 5A scenic spot of Huaguo Mountain and Liu Zhizhou Sports Park.
It is 5 kilometers away from the entrance and exit of the expressway, 13 kilometers away from the airport, and 36 kilometers away from the port.
It has convenient transportation by land, sea and air.
The company was founded in 2012 with a registered capital of 51 million yuan and an area of 20,000 square meters. It has 6 standardized industrial plants, supporting office areas, living quarters and finished goods yards, with a building area of about 11,000 square meters.
Our Advantages
Jiusheng Company has honed a sword for ten years, casting the soul of the enterprise with the spirit of craftsman.
Under the careful creation of Chairman Xie Qizhi, it has grown into a well-known enterprise in the domestic power auxiliary machinery industry.
It integrates the design, production and sales of electric auxiliary machinery, pressure vessels, chemical equipment and pipeline engineering installation services.
It has the qualification of designing & manufacturing
D1 and D2 level pressure vessel , and the qualificaton of GB2 and GC2 pipeline engineering installation.
It passedISO9001 international quality system,ISO14001 environmental health management system, ISO45001 occupational health management system certification in the industry, and also owns Madrid international trademark and product import and export qualification.
It has certain manufacturing experience in American standard and European standard pressure vessels and other products and has been recognized as a qualified supplier by more than 10 central enterprises in the industry, including CNNC, Sinopec, PetroChina, Huadian, Huaneng, China Resources, China Railway, China Energy Construction, China Power Construction, Guoneng, Everbright, etc.
Address:
No. 18, Xinba Middle Road, Industrial Park, Jinping Town, Lianyungang, Jiangsu, China
Business Type:
Manufacturer/Factory
Business Range:
Chemicals, Industrial Equipment & Components, Instruments & Meters, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001, ISO 14001
Company Introduction:
The company was established in 2012 with a registered capital of 51 million yuan and covers an area of 25 acres. It has 6 standardized industrial plants and supporting office areas, living areas and finished goods yard, with a construction area of about 10, 000 square meters. Jiusheng company has been sharpening a sword in ten years, casting the soul of the enterprise with the spirit of craftsmanship. Under the careful construction of the chairman Mr. Xie Qizhi, it has grown into a power auxiliary equipment enterprise in Gangcheng. She integrates the design, production and sales of power auxiliary equipment, pressure vessels, chemical equipment and pipeline engineering installation services. It is the chairman unit of Lianyungang Power Auxiliary Equipment Industry Association. Has the design and manufacture of D1, D2 pressure vessels, GB2, GC2 pipeline engineering installation qualifications, passed the ISO9001 quality system certification and ISO14001 environmental health management system certification, ISO45001 occupational health management system certification in the industry, by China National Nuclear Corporation, Sinopec, PetroChina, Huadian, Huaneng, China Resources, China Railway, China Energy Construction, China Power Construction, National Energy, Everbright and other more than 10 central enterprises in the industry were recognized as qualified suppliers, and the company was listed in the Jiangsu Equity Exchange Center in 2018.
Since its establishment, the company has successfully developed new structures such as "special muffler for nuclear power units", "composite steam muffler", "multi-pipe fan muffler", "self-cleaning industrial water filter", "magnetic filter", "Air filter", "Low-consumption high-efficiency water jet air extractor", "Energy-saving deaerator", "High-efficiency waste heat recovery device", "Tubular oil cooler", "Intelligent rubber ball cleaning device", "Fully automatic" More than 20 series and hundreds of specifications of electric power environmental protection and energy saving equipment such as "dosing device". The company has been committed to technological innovation and product research and development, and has obtained nearly 40 product patents, including 4 invention patents. A variety of products have been recognized as national high-tech products, such as "deaerator exhaust steam waste heat recovery device", "water jet air extractor", "silencer", "water filter" and so on. The company has perfect production inspection standards, and all new products have passed the quality inspection of "Jiangsu Provincial Product Quality Inspection and Supervision Center"
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