ESP Parts
ESP Controls
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A backfit package includes the interface panel, microprocessor module, signal conditioning board, a CT (for primary current), a PT (for primary voltage), and an interface cable. Effective energization of a precipitator is essential if the removal efficiencies required today are to be achieved....
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MRC Rapper Control. Proper control of the rapping system will greatly enhance precipitator performance. The intensity of the rapping impact, the interval between raps and the duration of vibrator on-time will have a profound effect on energization and minimize the effects of dust re-entrainment....
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The Hamon Research-Cottrell Transceiver is used as a bridge between the plants interface Distributed Control System (DCS) and the Hamon Research-Cottrell Microprocessor TR Control (MTC-G3 or MTC-G2) and Microprocessor Rapper Control (MRC) through an RS485 port. The Transceiver continuously scans...
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Hamon Research-Cottrell can provide a custom designed microcomputer (PC) for control and interface of the ESP. Precipcommander™ software will be installed in the PC providing the most advanced precipitator control system available. Users are guided through seventeen (17) standard screens that...
ESP Power Supplies
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Current Limiting Reactors Current Limiting Reactors (CLRs) protect both the TR set and the Silicon Controlled Rectifier (SCR) Controls. Hamon Research-Cottrell stocks several sizes of CLRs for either internal or external mounting. Hamon Research-Cottrell also stocks many replacement TR components....
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High voltage switching enables the precipitator to be grounded for safe entry and also for isolation of a troublesome electrical bus section so that the opposite electrical bus section can remain in service. Hamon Research-Cottrell offers a wide range of versatile high voltage switching devices....
ESP Insulator
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High voltage support insulators mechanically support and electrically isolate the discharge electrodes from the grounded ESP casing and collecting curtains. Support insulators are designed for high compressive strength to support the loads imposed by the high voltage electrodes and associated high...
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As dust accumulates on the discharge electrodes of an electrostatic precipitator, the clearance between the discharge electrodes and the grounded collecting electrodes will diminish. Rappers are used to clean of the discharge electrodes to maintain clearances. The rapping energy is transmitted to...
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When deemed appropriate, lower alignment insulators - or "anti-sway" or "stabilizer" insulators as they are more commonly known - are provided on each high voltage guide frame to maintain the stability and the alignment of the lower extremity of each high voltage section. Lower...
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It is inevitable that a high voltage bus (pipe or cable) must at some point pass from the clean environment of a bus duct to the dirty environment of the precipitator interior. Similarly, a high voltage bus may be required to transit between a low-pressure environment to a high-pressure environment...
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One of the most overlooked insulators on a precipitator is the stand off insulator. Stand off insulators provide points of support in long bus runs to maintain adequate clearances between the high voltage bus and grounded precipitator components. Stand off insulators are found in bus ducts to...
ESP Rapping
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The Magnetic Impulse Gravity Impact rapper, developed and patented in the 1950's by Research-Cottrell, has become the most widely used rapper for cleaning the collecting plates and discharge electrodes of electrostatic precipitators. Many have copied the MIGI rapper, but few have duplicated the...
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While the MIGI rapper can deliver a one-two punch to clean your collecting plates and discharge electrodes, it may not be the appropriate choice for all discharge electrode systems. Ceramic insulators support the discharge electrode systems of all electrostatic precipitators and some precipitator...
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Pneumatic rappers are good general-purpose rappers that can deliver strong shearing forces to collecting plates. Pneumatic rapper intensity can also be easily regulated through adjustments in the air pressure to provide the delicate force need to clean the most fragile of discharge electrode...
The "G" Opzel™ collecting plate incorporates Hamon Research-Cottrell's traditional Optimum Precipitation Zone ELectrode design, which provides quiescent zones to aide particulate collection and reduce re-entrainment. Plates are sheet steel roll-formed into panel plates that are...
In addition to standard replacement discharge electrodes for all earlier Research-Cottrell and Buell/GEESI precipitators, Hamon Research-Cottrell can supply custom Discharge Electrodes to me your exact specifications.
Rigid Discharge Electrodes have replaced wire discharge electrodes in modern...
ESP Accessories
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Access door lock with bolt eye and chain. The most common device requiring a lock is a door. This is also true for the doors installed on electrostatic precipitators. Access door locks are the most plentiful locks in a precipitator key interlock system. Access door locks are also the locks that...
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Key transfer blocks provide the mechanism by which access authority is moved from one point in a key interlock system to another. Key transfer blocks generally require that one or several keys must be present before one or more keys can be released. For example, the presence of all transformer-...
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It is apparent when considering the design of an electrostatic precipitator interlock system that the point of energization must be addressed. From one standpoint, access must be allowed to the high voltage sections of the precipitator only when the Transformer-Rectifier has been placed in a...
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The complexity of interlock systems varies from installation to installation. As a rule of thumb, the larger the quantity of transformer-rectifiers and precipitator chambers, the more complex the interlock system can be. The addition of a transformer-rectifier or a precipitator chamber can...
The penthouse or insulator compartment pressurization system (commonly called a Seal Air System) is a vital operating link in your electrostatic precipitator. Its function is to continually maintain a pressure in the Penthouse (or Insulator compartments) that is higher than the operating pressure...
