摘要:
An apparatus for managing water levels in a boiler, in particular a boiler of a coffee machine, in which the boiler (12) comprises, connected to a control circuit (14): a first probe (21) arranged, in use, to measure a first water level; at least a second probe (22, 23) arranged to measure a second water level, or working level of the apparatus, higher than the first level, in which it is provided that the apparatus is arranged to supply steam or hot water through respective ducts (26, 27) connected to the boiler (12) and controlled by respective valves (36, 37). The first probe (21) is configured for measuring a draining level of the boiler on the basis of draining commands generated by the control circuit and for automatically enabling water replacement in the boiler.
摘要:
The present invention relates to a pumping device using vapor pressure for supplying water for a power plant, which uses the vapor pressure that is stored in a vapor generator used in the power plant to more quickly and readily supply water to the vapor generator without separately using a high-capacity pump and a condenser. The present invention is characterized by significantly saving equipment cost, because various high-capacity pumps and condensers are not required at all, enhancing energy efficiency and operability by eliminating unnecessary power consumption that is used to operate same, reducing maintenance costs, and actively and efficiently preserving nature and the environment by fundamentally eliminating hot water and sewage, which are byproducts of nuclear or thermal power generation, that are discharged into the ocean without treatment.
摘要:
The separatorless boiler includes a downcomer pipe (84) connecting a lower portion of the upper header (24) and the lower header (22) and a control means (70) for carrying out a first control for controlling a water supply means (60) so that a water level in the can body lowers when a detected water level by an external water level detecting means (50) exceeds a first set water level, and a second control for controlling the water supply means (60) so that the water level in the can body rises when the detected water level becomes lower than or equal to a second set water level lower than the first set water level.
摘要:
The present invention relates to a structure for controlling a temperature of hot-water supply from a waste heat recovery system, and more particularly, to a structure for controlling a temperature of hot-water supply from a waste heat recovery system using a three-way valve capable of stably supplying hot water at a hot-water supply setting temperature during hot-water supply use using the three-way valve and saving energy to improve system efficiency, in a waste heat recovery system recycling waste heat.
摘要:
Modularized, superheated steam generators comprise a steam module (46), a thermocouple module (41), and an electrode module (45) assembled within a containment enclosure (66). The multi-stage steam module (46) comprises a plurality of first stage pressure vessels (77) surrounding and feeding a second stage pressure vessel (78). The steam module (46) is coaxially surrounded by insulation (48) disposed within a cylindrical shroud (72). The electrode module (45) radiantly heats the steam module with resistive heating elements (119). The thermocouple module (41) includes thermocouples monitoring first stage temperatures within and between pressure vessels (77). PLC computer SCADA software (600) operates the generators. Thermocouple data is analyzed to control heater temperatures, the water feeding system (340), and outputted steam temperature. PLC software (600) provides operating logic (602) establishing a start up subroutine (602), a ramp up subroutine (603), a steady state subroutine (605), and a shut down subroutine (606).
摘要:
Modularized, superheated steam generators comprise a steam module (46), a thermocouple module (41), and an electrode module (45) assembled within a containment enclosure (66). The multi-stage steam module (46) comprises a plurality of first stage pressure vessels (77) surrounding and feeding a second stage pressure vessel (78). The steam module (46) is coaxially surrounded by insulation (48) disposed within a cylindrical shroud (72). The electrode module (45) radiantly heats the steam module with resistive heating elements (119). The thermocouple module (41) includes thermocouples monitoring first stage temperatures within and between pressure vessels (77). PLC computer SCADA software (600) operates the generators. Thermocouple data is analyzed to control heater temperatures, the water feeding system (340), and outputted steam temperature. PLC software (600) provides operating logic (602) establishing a start up subroutine (602), a ramp up subroutine (603), a steady state subroutine (605), and a shut down subroutine (606).
摘要:
The separatorless boiler includes a downcomer pipe (84) connecting a lower portion of the upper header (24) and the lower header (22) and a control means (70) for carrying out a first control for controlling a water supply means (60) so that a water level in the can body lowers when a detected water level by an external water level detecting means (50) exceeds a first set water level and a second control for controlling the water supply means (60) so that the water level in the can body rises when the detected water level becomes lower than or equal to a second set water level lower than the first set water level.
摘要:
A method for operating a recirculating waste heat steam generator is provided, in which in a pressure stage of the recirculating waste heat steam generator, the feed water mass flow is guided on the basis of a specified desired value in order to control the water level in a drum. The method should give a recirculating waste heat steam generator a particularly high degree of efficiency and simultaneously a particularly high level of operational flexibility. For this purpose the thermal input introduced into an evaporator of the pressure stage is used as input variable in the determination of the desired value.
摘要:
Modularized, superheated steam generators comprise a steam module (46), a thermocouple module (41), and an electrode module (45) assembled within a containment enclosure (66). The multi-stage steam module (46) comprises a plurality of first stage pressure vessels (77) surrounding and feeding a second stage pressure vessel (78). The steam module (46) is coaxially surrounded by insulation (48) disposed within a cylindrical shroud (72). The electrode module (45) radiantly heats the steam module with resistive heating elements (119). The thermocouple module (41) includes thermocouples monitoring first stage temperatures within and between pressure vessels (77). PLC computer SCADA software (600) operates the generators. Thermocouple data is analyzed to control heater temperatures, the water feeding system (340), and outputted steam temperature. PLC software (600) provides operating logic (602) establishing a start up subroutine (602), a ramp up subroutine (603), a steady state subroutine (605), and a shut down subroutine (606).
摘要:
In a reactor feed-water system in which water is fed to a reactor pressure vessel by at least one reactor feed-water pump, a driving power for a feed-water pump drive motor is supplied from a semiconductor power conversion circuit adopting a self-excitation switching device; a reactor water-level detection value, a main steam flow rate detection value and a rector feed-water flow rate detection value are calculated by adding or subtracting these values; and a comparison result between the result of the calculation and a reactor water-level setting signal is given, as current command value to an inverter, to the inverter of the semiconductor power conversion circuit, thereby controlling the revolution number and torque of the feed-water pump drive motor, thus controlling the reactor feed-water flow rate.