摘要:
A Rankine cycle apparatus (20) includes a pump (23), an evaporator (24), an expander (21), and a condenser (22). The evaporator (24) has a plurality of heat transfer tubes (28) arranged in rows in a flow direction of a high-temperature fluid to be heat-exchanged with a working fluid. The heat transfer tube (28) located in a most upstream row in the flow direction of the high-temperature fluid is defined as a most upstream heat transfer tube (28k). For example, the most upstream heat transfer tube (28k) forms an inlet of the evaporator (24) so that the working fluid flows into the evaporator (24) through the inlet and first passes through the most upstream heat transfer tube (28k).
摘要:
An exhaust gas boiler including a plurality of superheaters (2,5) and reheaters (4,3) disposed separately in a side-by-side relationship with each other in the upstream of exhaust gas flow and in a plane across the complete of said exhaust gas boiler, which comprises in combination a plurality of superheater means (2,5) and reheater means (3,4) separated into primary (4,5) and secondary (2,3) groups respectively in such a manner that the secondary superheater means (2) and secondary reheater means (3) are disposed side by side with each other, the primary reheater means (4) being in the downstream of the secondary superheater means (2) and the primary superheater means (5) in the downstream of the secondary reheater means (3), the primary superheater means (5) and the secondary superheater means (2) being connected with each other, the primary reheater means (4) and the secondary reheater means (3) being connected with each other, respectively, and that there are provided a plurality of pass partition means (21) between the superheater means and the reheater means.
摘要:
A Rankine cycle apparatus (20) includes a pump (23), an evaporator (24), an expander (21), and a condenser (22). The evaporator (24) has a plurality of heat transfer tubes (28) arranged in rows in a flow direction of a high-temperature fluid to be heat-exchanged with a working fluid. The heat transfer tube (28) located in a most upstream row in the flow direction of the high-temperature fluid is defined as a most upstream heat transfer tube (28k). For example, the most upstream heat transfer tube (28k) forms an inlet of the evaporator (24) so that the working fluid flows into the evaporator (24) through the inlet and first passes through the most upstream heat transfer tube (28k).
摘要:
Der für die Kühlung von Gas aus einem Hochtemperaturreaktor bestimmte Wärmeübertrager weist einen Druckbehälter (2) auf, in dem sich ein zylindrischer, ein Rohrbündel (5) enthaltender Gaszug (14) befindet, der das zu kühlende Gas von einem Eintrittsbereich zu einem Austrittsbereich führt. Der Gaszug lässt zwischen sich und den benachbarten, äusseren Rohren (7) des Rohrbündels (5) einen ringförmigen Spaltkanal (8) frei, der so bemessen ist, dass bei Betriebstemperatur die durchschnittliche Temperatur des aus ihm austretenden Gases im wesentlichen gleich der durchschnittlichen Temperatur des aus dem übrigen Rohrbündel (5) austretenden Gases ist. Es sind Mittel (140) vorgesehen, durch die die durchschnittliche Wärmestromdichte durch die Wand der äusseren Kühlrohre (7) im wesentlichen gleich der durchschnittlichen Wärmestromdichte durch die wand der übrigen Rohre (6) des Kühlrohrbündels (5) gehalten wird. Durch die Mittel werden die sonst bei hohen Betriebstemperaturen auftretenden Spaltverluste im Spaltkanal weitgehend eliminiert.
摘要:
The steam generator for a fuel cell with dual use for heating fuel electrode gas according to the invention is configured as a single unit comprising a steam generator (100) that heats introduced water to generate steam, a steam superheater (200) that is connected to the steam generator (100) and used to supply superheat to the steam in order to elevate the temperature of the steam, and a fuel electrode gas heater (300) that is used to supply heat to the fuel electrode gas in order to elevate the temperature of the fuel electrode gas. The steam generator (100), steam superheater (200) and fuel electrode gas heater (300) are connected with an air electrode exhaust gas flow path through which the air electrode exhaust gas passes, to receive heat supply through heat exchange.
摘要:
The invention relates to an air cooler (10), for power station plant (40), comprising a pressure chamber (39), in which a coaxial arrangement (24, 25, 26) of a cylindrical central tube (24), a helical tube bundle (25), enclosing the central tube (24) and a cylindrical sleeve (26) enclosing the tube bundle (25) are housed, whereby the central tube (24) opens into a first chamber (33), connected to the tube bundle (25) and sealed to the exterior by the sleeve (26) and, furthermore, the central tube (24) may be pressurised with air through a second chamber (34), connected to the tube bundle (25) at the other end of the coaxial arrangement (24, 25, 26) by means of an air inlet nozzle (23). Connector means (31, 32) for the tube bundle (25) are provided, by means of which water can be injected into the tube bundle from the other end of the coaxial arrangement (24, 25, 26) and steam can be evacuated from one end of the tube bundle (25). The second chamber (34) is accessible from outside by means of an air outlet nozzle (29). According to the invention, an adequate cooling of the pressure vessel (39) can be achieved for such an air cooler (10), whereby the sleeve enclosing the tube bundle (25) and the first chamber (33) is embodied as an inner sleeve (26) separate from the pressure chamber (39), the inner sleeve (26) is concentrically enclosed by a cylindrical outer sleeve (28) of the pressure chamber (39) to give an annular gap (27) between inner sleeve (26) and outer sleeve (28), a third chamber (35) is embodied outside the first chamber (33) and within the pressure chamber (39), which is connected to the second chamber (34) by means of the annular gap (27) and the third chamber (35) is connected to the air outlet nozzle (29) by means of separate connector means (30, 36, 38) such that during operation a pressure (p3) exists in the third chamber (35) which is less than the pressure (p2) in the second chamber.