A segregated steam system and process in a hydrogen production facility wherein boiler feed water is heated by indirect heat exchange with a reformate, the heated boiler feed water is used to heat water condensate formed from the reformate, the heated water condensate is passed to a first steam drum for producing steam for a reformer feed gas mixture, and a second portion of the heated boiler feed water is passed to a second steam drum for producing steam for export.

A solar aided coal-fired power generation system participating in primary frequency regulation and a control method thereof propose a system configuration with two regulation schemes by coupling medium-low-temperature solar collectors and a coal-fired generation unit. The two regulation schemes are a high-pressure feedwater bypass scheme and a low-pressure condensate bypass scheme. The present invention formulates a primary frequency regulation control logic, so as to efficiently and accurately participate in the primary frequency regulation, thereby keeping the power grid frequency rapidly stable. The present invention also formulates a working fluid outlet temperature control logic for the solar aided coal-fired thermal system, which adjusts a heat exchange working fluid flow of the solar collectors to ensure that the temperature in each section is stable during the primary frequency regulation. The present invention uses operation matching of the turbine system and the solar collectors to improve effectiveness of the primary frequency regulation. With rational utilization of different temperature zones of different heat collectors, irreversibility is reduced, and economic efficiency of various thermal system adjustment schemes is further improved. As a result, operation flexibility of the transient process of a supplementary power generation unit can be greatly improved.

A solar aided coal-fired power generation system participating in primary frequency regulation and a control method thereof propose a system configuration with two regulation schemes by coupling medium-low-temperature solar collectors and a coal-fired generation unit. The two regulation schemes are a high-pressure feedwater bypass scheme and a low-pressure condensate bypass scheme. The present invention formulates a primary frequency regulation control logic, so as to efficiently and accurately participate in the primary frequency regulation, thereby keeping the power grid frequency rapidly stable. The present invention also formulates a working fluid outlet temperature control logic for the solar aided coal-fired thermal system, which adjusts a heat exchange working fluid flow of the solar collectors to ensure that the temperature in each section is stable during the primary frequency regulation. The present invention uses operation matching of the turbine system and the solar collectors to improve effectiveness of the primary frequency regulation. With rational utilization of different temperature zones of different heat collectors, irreversibility is reduced, and economic efficiency of various thermal system adjustment schemes is further improved. As a result, operation flexibility of the transient process of a supplementary power generation unit can be greatly improved.

The present application relates to an exhaust steam waste heat recovering and supplying system used for air-cooling units in large thermal power plants. Each of the two steam turbines has independent exhaust steam extraction system, and the exhaust steam extraction system of each steam turbine is connected with corresponding pre-condenser to heat the return water of the heating network. The exhaust steam extraction system of each steam turbine is further connected with the corresponding steam ejector; the exhaust port of each steam is connected with the corresponding steam ejector condenser to heat the return water of the heating network. The exhaust steam waste heat of the air-cooling units in a thermal power plant can be recycled in high efficiency to improve the utility rate of the exhaust steam, increase heating capacity, reduce cold end loss to the largest extent, and maximize the energy saving benefits.

The present application relates to an exhaust steam waste heat recovering and supplying system used for air-cooling units in large thermal power plants. Each of the two steam turbines has independent exhaust steam extraction system, and the exhaust steam extraction system of each steam turbine is connected with corresponding pre-condenser to heat the return water of the heating network. The exhaust steam extraction system of each steam turbine is further connected with the corresponding steam ejector; the exhaust port of each steam is connected with the corresponding steam ejector condenser to heat the return water of the heating network. The exhaust steam waste heat of the air-cooling units in a thermal power plant can be recycled in high efficiency to improve the utility rate of the exhaust steam, increase heating capacity, reduce cold end loss to the largest extent, and maximize the energy saving benefits.

An energy-saving system using electric heat pump to recover flue gas waste heat for district heating uses flue gas waste heat recovery tower to absorb the sensible and latent heat in the high-temperature flue gas by direct contact heat and mass transfer. The circulating water is sprayed from the top and the flue gas flows upwards in the tower. The electric heat pump is indirectly connected with circulating water through the anti-corrosion and high-efficiency water-water plate heat exchanger. The return water of the heat-supply network enters the electric heat pump through the anti-corrosion and high-efficiency water-water plate heat exchanger and exchanges heat indirectly with the high-temperature circulating water. The electric heat pump uses the electric energy of the power plant as the driving power.

Powered and non-powered kits for the treatment of fluid in boiler and cooling systems, both open and closed recirculating are disclosed. The kits generally include a fluid container, a fluid connector configured to engage the fluid container, a hose configured for fluid communication with the fluid connector, a port, a fluid container suspension means, and a hose end support member. The fluid container is configured to enclose chemical agents and/or solutions. The port may be formed along the fluid container and be configured to receive the fluid connector. The hose end support member may support at least one portion of the hose at a desired height above the standing fluid to be treated. In embodiments, a metering pump is included with the kits, the metering pump configured to cause a predetermined amount of the chemical agents or solutions to be dispersed from the fluid container.

Powered and non-powered kits for the treatment of fluid in boiler and cooling systems, both open and closed recirculating are disclosed. The kits generally include a fluid container, a fluid connector configured to engage the fluid container, a hose configured for fluid communication with the fluid connector, a port, a fluid container suspension means, and a hose end support member. The fluid container is configured to enclose chemical agents and/or solutions. The port may be formed along the fluid container and be configured to receive the fluid connector. The hose end support member may support at least one portion of the hose at a desired height above the standing fluid to be treated. In embodiments, a metering pump is included with the kits, the metering pump configured to cause a predetermined amount of the chemical agents or solutions to be dispersed from the fluid container.

Powered and non-powered kits for the treatment of fluid in boiler and cooling systems, both open and closed recirculating are disclosed. The kits generally include a fluid container, a fluid connector configured to engage the fluid container, a hose configured for fluid communication with the fluid connector, a port, a fluid container suspension means, and a hose end support member. The fluid container is configured to enclose chemical agents and/or solutions. The port may be formed along the fluid container and be configured to receive the fluid connector. The hose end support member may support at least one portion of the hose at a desired height above the standing fluid to be treated. In embodiments, a metering pump is included with the kits, the metering pump configured to cause a predetermined amount of the chemical agents or solutions to be dispersed from the fluid container.

Powered and non-powered kits for the treatment of fluid in boiler and cooling systems, both open and closed recirculating are disclosed. The kits generally include a fluid container, a fluid connector configured to engage the fluid container, a hose configured for fluid communication with the fluid connector, a port, a fluid container suspension means, and a hose end support member. The fluid container is configured to enclose chemical agents and/or solutions. The port may be formed along the fluid container and be configured to receive the fluid connector. The hose end support member may support at least one portion of the hose at a desired height above the standing fluid to be treated. In embodiments, a metering pump is included with the kits, the metering pump configured to cause a predetermined amount of the chemical agents or solutions to be dispersed from the fluid container.