Clea­ning con­trol HE 5750

 

Fieldbus-supported cleaning system for large industrial filter plants

Automatic hose rupture monitoring

 

Control pre-parameterised ex works and immediately ready for use

 

Pre-assembled control boxes available

 

Parameterization either with PC software or via local operation

Controls up to 1024 valves

 

 

 

Produkt anfragen

 

 

Valve control systems for waste incineration plants

Auto­ma­tic moni­to­ring of valve and fil­ter func­tions

Espe­cially large fil­ter plants with several hund­red clea­ning val­ves and many thousands of fil­ter bags, such as those found in waste inci­nera­tion plants and cement works, should have a high degree of auto­ma­ted moni­to­ring pro­ces­ses to ensure that the plant is always fully func­tio­nal.

For this rea­son, HESCH has inte­gra­ted an auto­ma­tic hose rup­ture moni­to­ring sys­tem into the HE 5750 clea­ning con­trol sys­tem in addi­tion to exten­sive moni­to­ring of the clea­ning valve func­tion. For this pur­pose, only one cen­tral dust sen­sor is optio­nally requi­red, which, moun­ted in the clean gas duct at the fil­ter out­let, moni­tors the dust load of all cham­bers.

 

Example cal­cu­la­tion:

When using a 500 kW fan, for example, ope­ra­tors of dust collec­tion sys­tems can reduce electri­city con­sump­tion by around 10 per­cent and thus save around 22,000 euros in energy costs per year. ( At a kilo­watt price of 5 cents.)

 

 

Filter house with old filter bags

The HE 5750 reports the exact posi­tion of the defec­tive fil­ter bag.

Accu­rate hose rup­ture loca­liz­a­tion

If one of three freely defi­ned limit values of the dust load is excee­ded, the con­trol sys­tem auto­ma­ti­cally assigns this event to the respec­tive cham­ber and trig­gers the cor­re­spon­ding reac­tion (e.g. an error mes­sage, an alarm or the shut­down of the sys­tem).

 

In this way, not only is fault-free ope­ra­tion gua­ran­teed at all times, but in the event of a hose rup­ture, a mes­sage is also gene­ra­ted immedia­tely with the exact posi­tion of the dama­ged hose row.

 

This con­si­der­ably mini­mi­zes the time requi­red to locate a defec­tive fil­ter bag and thus incre­a­ses the avai­la­bi­lity and effi­ci­ency of the sys­tem.

 

 

 

 

 

 

 

Structure of the HE 5750 cleaning system

Struc­ture of the HE 5750 clea­ning sys­tem

Struc­ture of the clea­ning sys­tem

The HE 5750 sys­tem con­trol­ler is the cen­tral unit in the CAN net­work of the clea­ning con­trol sys­tem for indus­trial bag fil­ters. The cen­tral con­trol unit com­mu­ni­ca­tes with the decen­tra­li­zed valve con­trol units HE 5724 as well as the dam­per con­trol units HE 5740 via the indus­trial CAN bus.

 

The HE 5750 cen­tral con­trol unit takes over the task of coor­di­na­ting and moni­to­ring all con­nec­ted assem­blies and com­mu­ni­ca­ting with the con­trol sys­tem.

 

The HE 5724 slave con­trol­lers con­trol the valve con­trol and moni­to­ring pro­cess. The dam­per con­trol units form the inter­face to the dam­per actua­tors.

 

The HE 5750 con­trols up to 32 slave boxes. The con­nec­tion bet­ween the func­tio­nal units is made via CAN bus.

A con­nec­tion to a con­trol sys­tem via Pro­fi­bus-DP, Mod­bus or Ether­net is stan­dard.

 

Control functions

– True valve function monitoring with only one pressure transmitter per pressure tank
– Monitoring of the valve circuits (cable break, overcurrent)
– Monitoring valve function for proper opening and closing
– Bunker level monitoring
– Fabric filter monitoring (hose rupture) in the chambers via dust sensor
– Control of shut-off valves in case of maintenance or malfunction

Diagnose-Möglichkeiten

– Pressure drop at each valve
– Dust increase with each valve
– remote monitoring
– Log files for analog channels

Applications

– Waste gas dedusting in waste incineration plants and cement works
– Flue gas dedusting in power plants

Technical data

HE 5750
Ver­sor­gungs­span­nung 24 VDC (18…30 VDC)
Dis­playGra­fi­sches LC-Dis­play, 240 × 64 pixel, 133 × 39 mm
Farbe: grün, Hin­ter­grund­be­leuch­tung: LED
Tas­ta­turFoli­en­tas­ta­tur, 16 Funk­ti­ons­tas­ten, Bezeich­nung kun­den­spe­zi­fisch. Zif­fern­block, Cur­sor-/Steue­rungs­block
Echt­zeit­uhrDatum, Zeit (Netz­aus­fall­puf­fer: ca. 1 Jahr)
µ Pro­zes­sorSie­mens C167CR
Spei­cher256 kByte sta­tic RAM 512 kByte FLASH Data 512 kByte FLASH Pro­gramm 8 kByte par­al­lel EEPROM
4 × ana­log: 4…20 mA, Block gal­va­nisch getrennt
8 × digi­tal: 24 VDC gal­va­nisch getrennt
Out­puts8 × digi­tal: 24 VDC gal­va­nisch getrennt. Kurz­schluss­fest
CAN-BUSgemäss ISO 11898, max. 1 Mbit/s
•   Spe­zi­fi­ka­tion: 2.0A
•   Ver­sor­gung: gal­va­nisch getrennt
Pro­fi­bus-DPgemäß EN 50 170, max. 12 Mbit/s
•   auto­ma­ti­sche Baud­ra­ten­er­ken­nung
•   RS 485
Seri­elle Schnitt­stelleRS 232 und RS 422 oder RS 485 per Soft­ware wähl­bar
Baud rate: max. 38400 bit/s
GehäuseSchalt­ta­fel­ein­bau
Schutz­art: front­sei­tig IP54, rück­sei­tig IP20
Abmes­sun­gen295 × 200 × 40 mm (B × H × T)
Erfor­der­li­cher Aus­schnitt: 265 × 170 mm
Jum­perXJ1: CAN-Bus Ter­mi­nie­rung (Bus­ab­schluss). Darf nicht erfol­gen, wenn die Ter­mi­nie­rung bereits außen am Ste­cker erfolgt ist.
aktiv inak­tiv
XJ2: Staub­sen­sor Jum­per, ana­log oder Schalt­kon­takt
XJ3: Staub­sen­sor Jum­per, ana­log oder Schalt­kon­takt
Feuch­tig­keitPer­ma­nent 75% rel. Feuchte, nicht kon­den­sie­rend
Stoß­fes­tig­keitDIN 40046 IEC68-2-69
EMVDIN EN 50081 part 1
DIN EN 50082 part 2
Anschluss­tech­nikÜber Stecker/Schraubsteckklemmen (max. Quer­schnitt
2,5 mm²
Kli­ma­tisch
  Lage­rung- 20 °C – + 70 °C
  Betrieb0 °C – + 50 °C
  Rela­tive Luft­feuchteper­ma­nent 75% rel. Feuchte, nicht kon­den­sie­rend

Errors and omis­si­ons excep­ted

Downloads

Ope­ra­ting Inst­ruc­tions HE 5750 – Ger­man

Ope­ra­ting Inst­ruc­tions HE 5750 – Eng­lish

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