FLOWSERVE GESTRA Equipment for Energy Supply Centres SPECTORmodule for Land and Marine Applications

Equipment for Energy Supply Centres Steam and condensate systems with one-stop sophistication Content Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical pressure control Process steam Steam drier/ purifier Electrical temperature control Flash steam/gas Mechanical temperature control Energy supply centre Controlled from the condensate side Steam flow measurement Heat exchanger At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 GESTRA Steam Boiler Equipment – SPECTORmodule – For operation with...

Overview Safety, reliability, availability and economy have always enjoyed top priority in boiler operation . To an increasing extent, another aspect is being added for the plant operators: process automation and visualization . To meet these stringent requirements, GESTRA AG has – for more than ve decades now – been working exclusively with electrode systems that are low in maintenance and wear; in contrast to other systems, they function entirely without moving parts, which leads to high service lifetimes and very low failure rates . By now, these GESTRA electrode systems are being applied...

Equipment for Energy Supply Centres At a Glance Conductive level control and signalling of limit levels Limiter systems with type approval and SIL 3 certification Level limiter High-level alarm Temperature limiter Supply voltage Response sensitivity Response sensitivity Level limiter Actual value Capacitive level control and signalling of limit levels SPECTORmodule SPECTORmodule Touch Input switchable – active Input switchable – passive Options: Actual value 4–20 mA Conductivity switch/controller Temperature monitor SPECTORmodule LRS 1-50 Input - Passive - Active Function Max Valve open/ running/closed...

GESTRA Steam Boiler Equipment – SPECTORmodule – Level control with high-level alarm: level electrode NRG 16-36 (as controller), level switch NRS 1-54 Water level gauge For operation with limited supervision, e.g. as per TRD 602 (2 h) Low-level limiter of “high-integrity design”: level electrode NRG 16-50, NRG 16-36, level switch NRS 1-50, SIL 3 Conductivity measurement and continuous/intermittent blowdown: conductivity electrode LRGT 16-2, continuous blowdown controller LRR 1-51, continuous blowdown valve BAE; cycling timer TA, intermittent blowdown valve MPA Measuring point Pressure gauge Vent...

Equipment for Energy Supply Centres GESTRA Steam Boiler Equipment – SPECTORmodule – For operation without constant supervision as per EN 12953 (72 h) Low-level limiter of “high-integrity design”: level electrode NRG 16-50, level switch NRS 1-50, SIL 3 Separate high-level alarm of “high-integrity design”: level electrode NRG 16-51, level switch NRS 1-51, SIL 3 Level control with high-level alarm and remote water level indicator: level probe NRG 26-21, level controller NRR 2-52, control terminal and display unit URB 50 und control valve V 725 Water level gauge Conductivity measurement with indication,...

GESTRA Equipment for Steam Generators – Marine Boilers – Technical Information Equipment with maritime approvals GESTRA Equipment for Steam Generators – Marine Boilers – By making just a few technical modications, we were able to adapt our well-proven boiler equipment to the special requirements (as regards vibration, air conditioning, EMC etc .) of various classication societies . We can provide our customers with a large number of acceptance inspections – such as GL, LR, See-BG, RINA, NKK, ABS, KR, BV and DNV – which guarantee that the GESTRA equipment range meets the requirements of the international...

Equipment for Energy Supply Centres GESTRA Equipment for Pressurized Hot-Water Plants – Conventional – for high-pressure hot-water generation with separate pressurizing vessel Low-level limiter of “high-integrity design”: level electrode level switch NRS 1-50, SIL 3 Level control with high-level alarm and remote water level indicator: level probe NRG 16-52, switching controller NRS 1-54, NRS 1-52 (HW) Intermittent blowdown valve PA Safety temperature monitor/limiter: resistance thermometer TRG, temperature switch TRS 5-50, SIL 3 Measuring point Return temperature elevation: resistance thermometer...

Technical Information Low-Level Limiters (LW) up to PN 320 1 The limiters consist of a combination of level electrode and level switch . In general, a distinction must be made between units of “conventional design” and those of “high-integrity design” (i .e . with self-monitoring) . The corresponding applications for the units are dened in the technical rules and depend mainly on the hazard potential of the plant . The basis for units of “conventional design” is the maximum operating pressure of the boiler (PED 0 .5 bar, TRD 701 1 bar) . The self-monitoring limiters of “high-integrity design”...

Equipment for Energy Supply Centres Technical Information On/Off Level Controllers/ Limit Switches with Fixed Switchpoints – Conductive Measurement – 3 SPECTORmodule Depending on the parameters of boiler capacity, required steam quality, plant economy and degree of automation, the make-up arrangement is differentiated into the on/off and modulating control modes . Within the on/off controls, these are subdivided further into those with xed switchpoints and those with continuously adjustable switchpoints . Besides make-up, these systems are also used for the simple signalling of limits, e .g ....

Technical Information On/Off Level Controllers with Variable Switchpoints / Limit Switches or Modulating Level Control – Capacitive Measurement – 3 SPECTORmodule Using limit switches with variable switchpoints opens up the possibility of adapting on/off controls or limit values to changing operating conditions while the system is in operation . This is feasible because the capacitive measurement by the probe supplies a signal to the electronic control units that is proportional to the level; the desired switchpoint can therefore be set at the level switches . This measurement also makes it possible...