XJD series of multi-valve control system is mainly applied to filter, soften and deaerator equipments so as to realize auto-operation of sustem. Meanwhile it is applied to liquid level control in waterbox instead of original floatvalve. And shortcomings of vulnerable floatvalve are overcome.
Comparison between control system1、There is no slow-flush program on the original controller in respect of ion-exchange application, which makes serious waste of saltwater appear. After slow-flush program is adde in system by our modification, operational cost is reduced greatly.
2、In respect of ion-exchange application, original controller adopts salt valve to realize the controlling over saltbox refill. But the largest diameter of salt valve is DN20 in large scale system, while in large scale system, saltwater intake tube is more than DN32 generally, which will make salt valve do not work normally. After modification by us, control system is added in water level conrol of salt carton, original salt valve is canceled. And diameter-nonaltered of saltwater intake tube can be realized.
3、In respect of ion-exchange application, original controller does not realize the controlling over saltwater filter system.While in large scale ion exchange system, salt filter system is indispensable. If control is realized, the only way is to manually operate salt filter system; after modification by us, saltwater control system is added, and further more, chain between its control system and original control system is achieved. No need of manual operation.
Advantages of control system? This control system is strong to fictile, different process flow and device configuration can be designed depends on water quality and site conditions provided by customer.
? It features long usage life and very low failure rate.
?It is easy to install, simple to repair, even layman can carry on operation and maintaineance.
?Distrbutor is made of self-lubricated materal with no need of manual lubrication.
Working principle
XJD multi-valve control system is made of a pressure signal distributor and a PLC programmable controller. It is fixed in a water-proof plastic casing. Pressure signal distributor is a rotary pilot valve to guild liquid or gas signal source to turn on or turn off various diaphragmvalves, thereby auto-control of equipment system is fulfilled. Valve element of signal distributor is made of solid, anticorrosion and self-lubricated material with long usage life and without maintenance.
Valve in operation selects technology from abroad, hydraulic or pneumatic diaphragmvalve developed by us, 1.5”~6”are accessible. ?600~?3000 tank can be equipped. This kind of valve has low cost, simple installation, easy maintenance.Layman can fulfill check, repair, replacement and other operations.
Functions of XJD multi-valve controller
Password protection
Calendar display
Declining display regenerated steps and time
External control signal chain control and step signal output
Timing start, interval start, remote transmission( flow or analysis instrument)junction start, temporary start on site, force start on site, all five modes.Besides，force step start（used for site commissioning）
Automatic reset on original place
Set freely regenerated procedure steps (1-8) and time of every step(1-9999 seconds)
System status signal display( For example, feedback signal display of system work or regenerated status)
Power-off protection function: accumulated flow after power-off, batch value set and other set parameters has holding time more than 3 years.
Equipment casing is made of engineering plastic which features dust proof, antisepsis, anti-water spurting and others.
Working principle of signal distributor
Distributor is driven to rotate by small motor controlled by time or flow programmer, and it is also can rotate manually. When distributor is rotated to different palces, one or several pores are open or shut down. Place No. of distributor pore canal match the operational steps of system.( see chart and table) The open pore canal shall guild signal pressure resourece to drive diaphragmvavle to activate, in the meantime other diaphragmvavles are evacuated, and routine places are recovered. Signal pressure resource which drives diaphragmvavle may be gas or liquid.
For continous running voltage are not needed as control solenoid valve, defect and this maintenance caused by electricity are reduced significantly.
A variety of combination plan by different distributors and time programmers can satisfy various program control requirement in respect of water treatment system. Table followed is an example: JMA502
Type controls water softener, that is , link line between distributor and diaphragmvavle is flexible hose.
Coordinating parametersPower : 220VAC/50HZ, 10W
Remote transmission start signal: passive junction signal less than 2 seconds
Size of distributor connector: 1/8”G thread
Pressure signal resource: gas or liquid(100μ filter is recommended to install)
Pressure of controlling resource: 0.2~ 0.8MPa
Working temperature: 4~60 ℃
Size of controller casing:270X170X145mm Distributor turned to following places | Soften process engineering | Open tank valve |
| | |
4 | Operation | 1，2 |
3 | Backflush | 3，4（2A） |
2 | Salt absorption | 5，6（2A） |
1 | Direct flush | 6，1（2A） |
XJD flow type controller
XJD flow type controller is equipped with advanced microcomputer chip technology to specially control the regenerated flow and time type of water treatment equipments. This controller can be used to independent controlling over multi-tank filter, soften, desalination and others consisted of multi-tank. And it features instant flow, residual water, accumulated water display, preset regenerated program, system operating status display, chain control with other controlling equipments and other special functions.
Performance features of controller
Password protection
JMB single channel flow meter pulse receiver
value selection of flow meter probe (According to probe installation pipe size,inquire attached list)
System flow flow(0-999t/h) and preset that declining display of surplus volume of batch(1-9999.9t)
Accumulated flow query and zero clearing function
Status display of each system( work, regeneration, standby,feedback)
Force manually start to regenerate on site
Regeneration start signal output(2-9999 seconds) set
System work mode: (C1、D2、D3、E2、E3) selection of five modes
Remark；C type：single column operation, regeneration in turn; D type: Several on,on off;E type: Operate simultaneously, regenerate seperatedly
Regeneration system( outlet magnetic valve control) auxiliary point output
Shut down protection function: Parameter holding time set after shut down is more than 3 years.
Equipment casing is made of engineering plastic features dust proof, antisepsis, anti-water spurting and others.
Installation form of equipments is hanging on wall or frame suspension.
Main technical data
Flow sensor pulse value input: sin-wave frequency range is 0-10K,probe( DC), Voltage fluctation magnitude is 4-12V
Sampling period: 0.2 second
Output mode: Electrical relay passive point output contact capacity AC220V/2A
Feed input: passive point feedback signal
Display mode: Backlight LCD display unit, usage life≥10years
Instrument power: switching power supply 100-265V/AC, power 5W
Application environment: environment temperature 4-60℃ Relative humidity≤85%RH
