Catalogue CEJS
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Acme Engineering Products, Inc. - 6722, 110055
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operating principles of Design features of electrode boilers Electrode Boilers
Electrode boilers utilize the conduc­tive and resistive properties of water to carry electric current and generate steam. An a.c. current flows from an electrode of one phase, through neu­tral, to an electrode of another phase using the water as the conductor.
Since the water has electrical resis­tance, this current flow generates heat directly in the water itself. The more current (amps) that flows, the more heat (BTU's) generated and the more steam produced. 100% of the electrical energy is converted into heat with no stack or heat transfer losses.
The Model CEJS High Voltage Electrode Steam Boiler, is the proven leader with more hours of operating experience over a wide range of ap­plications. The CEJS electrodes are vertically mounted around the inside of the pressure vessel which enables the CEJS to produce maximum amounts of steam in a minimum amount of floor space.
The CEJS operates at existing distribution voltages, 4.16 to 25 kv with exceptional efficiency—up fo 99.9% efficient! Models are available to pro­duce steam in capacities to 270,000 pounds per hour. Pressure ratings range from 75 psig to 500 psig. All CEJS boilers are designed to A.S.M.E. Boiler and Pressure Vessel Code, and are certified and registered pressure vessels.
How the Model CEJS works
Water from the lower part of the boiler is pumped by the circulation pump (1) up the collection pipe (2) to the nozzle stock (3) The water is forced through the jets of the nozzle stock to strike the electrode plate (4) creating an electrical current path (R1). The unevaporated water flows from the electrode through the nozzle plate (5) to stnke the counter electrode (6). creating a second current path (R2). Control of the boiler output is accomplished by raising or lowering the control sleeve (7) which diverts the water from the covered jets directly back to the lower portion of the boiler. The control sleeve is moved hydraulically by the control cylinder (10) wnich, in turn, is positioned by the electronic processor boiler pressure and load control system. This control system will hold steam pressure and match boiler output to system requirements.
The stand-by neater (14) is used to maintain water temperature at a pre-set level in order to reduce start up time.
A proportioning feed water regulator (not shown) maintains a constant water level in the boiler A load monitoring system prevents the electric demand from exceeding boiler capacity and enables the boiler to be manually set at levels lower than its full kw rating The boiler may also be controlled by an automatic demand control system.
To shut off the boiler simply stop the circulation pump.
Model CEJS cross sectional diagram
Wafer jets strike electrode plate
Low water protection is absolute since the absence of water prevents current from flowing and the electrode boiler from producing steam.
Unlike conventional electric boilers or fossil fuel boilers, nothing in the elec­trode boiler is at a higher temperature than the water itself.
If scaling should occur in the boiler, it will electrically insulate the electrodes, which reduces current flow and boiler output. There is no loss in conversion efficiency however, and, simply clean­ing the electrodes will restore full boiler capacity. There can be no heat build­up in the electrodes, therefore, no elec­trode burnout, and no danger to the boiler itself.
LEGEND:
1. Circulation pump
2. Collection pipe
3. Nozzle stock
4. Electrode plate
5. Nozzle plate
6. Counter electrode
7. Control sleeve
8. Control linkage
9. Control cylinder rod
10. Control cylinder
11. Insulator
12. Steam outlet
13. Boiler shell
14. Stand-by heater R1 Current path R2 Current path
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