DE2626788A1 - CONDENSER SYSTEM, IN PARTICULAR DEVICE FOR CONDENSING THE EVAPORATORS FROM A POWER STATION - Google Patents

Description

Licht, Schmidt, Hansmann & Herrmann patent attorneys

Munich: Dipl.-Ing. Martin light

Dipl.-Wirtsch.-Ing. Axel Hansmann Dipl.-Phys. Sebastian Herrmann

• Patent attorneys light. Hansmann, Herrmann-8 Munich 2 Theresienstr. 33 'OppenaU: Dr. Reinhold Schmidt

8 Munich 2 Theresienstraße 33

June 15, 1976 Ho / Lü

HUDSON PRODUCTS CORPORATION 6855 Harwin
Houston, Texas
V. St. A.

Condenser system, in particular a device for condensing the exhaust steam from a power plant

The invention relates to devices for condensing exhaust steam, in particular the turbine exhaust steam of a power plant or the like, the condensing within a steam condenser happens by means of a coolant, which in turn is cooled by ambient air within wet and dry cooling tower sections will. In particular, the invention relates to devices of the aforementioned type, in which the wet storm during cool weather can be taken out of operation to save the provision of treated water when water is scarce.

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Telephone (089) 2812 02 Telegram: Lipatli Munich Bayer. Vereinsbank Munich, account no. 882495 Postscheck Munich No. 163397-802

Wet cooling tower sections of the type described below have a filler material on j over which air is passed, further an inlet with a device to spray a coolant over the filler as well as an outlet with a water basin in which the coolant collects below the filler. Dry cooling tower sections of the type described below have a tube bundle through which air can flow, and also an inlet for introduction a coolant into the tube bundle and an outlet for withdrawing the coolant from the tube bundle. In both cases it can the air flow exist as an intrinsic draft or as a mechanical draft, the latter being generated by a fan.

A steam condenser of the type described below generally has mean one or more shell bodies or shell bodies, each of which is provided with an inlet for receiving the steam are, also with a hot water tank or drain space to collect the condensate, and with a device between the Inlet and drain space to a coolant in a heat exchanger relationship with the steam through the housing of the condenser. The capacitor can be of the direct contact embodiment or mixture, the coolant being sprayed into the housing and withdrawn from the drain. Of the The condenser can also consist of a surface condenser, the coolant being passed through tubes within the condenser housing will. When two or more media are passed through the housing and at least one is sprayed into the housing then the capacitor corresponds to the embodiment with direct contact or mixing. Furthermore, the coolant be passed through each condenser shell body in parallel flow guidance or in series flow guidance.

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In devices of this type, the same coolant can be used in both Tower sections are cooled. A different coolant can also be used in each tower section. There the coolant cooled in the wet tower section usually consists of fresh water, this is usually carried through in the condenser Extending pipes passed to prevent contamination of the condensate to be returned to the working circuit as well as the to prevent other cooling medium. If a second coolant is cooled within the drying tower section, this can passed through additional tubes of the condenser or can be sprayed into the condenser and in the drain space of the same collected to return to the drying tower section. In this case, the second coolant is also attached prevented from contaminating the condensed vapor.

Based on systems of a known type, there is the task of the present Invention is to provide an arrangement in which the drying tower section during inspection and maintenance of the Wet gymnastics section does not have to be taken out of operation. When the wet tower section was taken out of service then it should be possible to pass the coolant flowing through the drying tower section through both sections of the condenser, without contaminating the other cooling medium. If the wet tower section is put back into operation, then the cycle of both coolants should be able to be resumed through their individual condenser sections without a mutual contamination exists.

The device should also be simple in construction and easy to maintain be.

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The invention is described below using exemplary embodiments Explained with reference to the accompanying drawing.

Fig. 1 is a schematic view of a device according to a first embodiment according to the invention;

FIG. 2 is a schematic view of an apparatus according to FIG a second embodiment according to the invention;

Fig. 3 is a schematic view of a device according to a third embodiment according to the invention; and

Fig. 4 is a schematic view of a device according to a fourth embodiment according to the invention.

The device shown in Fig. 1 according to the first embodiment According to the invention, a steam condenser 10, a wet cooling tower 11 and a dry cooling tower 12 are essential components. Suitable lines connect these components as well as secondary or additional parts of the device, as explained below. In the Use of such a device for the purpose of condensing the steam a turbine outlet of a power plant or the like is the surface capacitor 10 within the system of the actual power plant or working cycle, while the cooling towers 11 and 12 outside the power plant at ground level G are attached.

The steam condenser 10 has a shell or jacket 13 an inlet 14 located at the upper end, which is connected to the turbine outlet shown schematically at 15

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can. At the lower end of the condenser 10 there is a pouring space or hot water tank 16, within which condensed steam collects. An outlet of the spout is above a Line 17 with a pump 18 in connection to the condensate of the The pouring chamber back into the steam boiler of the power plant. As described above, the capacitor 10 may be two or more have multiple shells or shell bodies.

The wet cooling tower 11 corresponds to an embodiment with a mechanical one Train and has a housing 19, on the opposite sides of which panels or flaps 20 are provided, while on a fan 21 is located at the upper end. Filler material or a pack 22 is inside the housing below the fan 21 and the Shutters or blinds 20 arranged opposite one another, so that ambient air is passed through the filling material when the Air is drawn in through the blinds and drawn out through the top of the cabinet. A medium to be cooled is with the help sprayed by spray heads 23 on top of the filler material. The spray heads 23 are attached to a manifold 24, which extends inwardly from an inlet 23A into the housing. The coolant flowing down through the filler 22 is in one Water basin 25 collected at the lower end of the housing. The water basin is in communication with an outlet 25A of the housing.

The dry cooling tower 12 also corresponds to the embodiment with mechanical pulling action and has a housing 26 which is fastened on legs 27 above the ground level G. Thus can Ambient air by means of an attached to the upper end of the housing Fan 28 up through the lower open end of the housing be sucked. As shown schematically in Fig. 1,

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there is a laterally extending tube bundle 29 within of the housing in the path of the air flow passing through the housing. The top row of tubes is with an inlet 29A of the housing, while the lower row of tubes lead out of the housing via an outlet 29B.

FIG. 1 also shows, in a schematic manner, that two Sets of sections or tubes 30 and 31 within the jacket

13 of the condenser 10 are attached so that the tubes are in the path of the steam flow, which from the inlet

14 leads into the hot water tank or sink space 16. As above As illustrated, any set of tubes can be used to convey coolant through the jacket of the condenser and into heat exchange relationship with the steam from the turbine outlet. Coolant is passed from the wet tower 11 through the tubes 30, while further coolant from drying tower 12 is passed through tubes 31. The ends of the tubes are with water boxes connected to the side of the capacitor housing or jacket, as is also shown schematically in FIG. If the If the capacitor has more than one capacitor jacket, a corresponding number of tube sets is used.

A coolant is drawn from the wet tower 11 via a first line 32 in the lower end of the pipe section 30 is introduced and is discharged from the upper end of the pipe section 30 via a second line 33 returned to the inlet of the wet tower 11. On the other hand, coolant is supplied via a third line 34 from the outlet of the drying tower 12 introduced into the lower end of the pipe section 31 and is by means of a fourth line 35 from the upper end of the pipe section 31 is fed back into the inlet of the drying tower. One

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Pump 36 is in line 32 to circulate the first coolant while pump 37 is in line 34 is located to circulate the second coolant. As described above, the device allows after this Embodiment according to the invention that the coolant is different is, the coolant cooled in the wet tower usually consists of fresh water, while the im Dry tower coolant consists of condensate, in some cases an anti-freeze solution. The one described above Device for circulating the coolant keeps them separate from one another. If both cooling towers are in operation, then the coolant circulating through the drying tower is not contaminated by the fresh water flowing through the wet tower flows. Since the two coolants inside the condenser shell are passed through the two pipe sections 30 and 31, In this area too, the steam inside the condenser is prevented from being contaminated.

As mentioned above, according to the invention it is possible to use the wet tower while the drying tower 12 is constantly in operation Taking the winter months out of operation, which means considerable savings in the amount of water to be treated. The wet tower can be taken out of operation by closing the valves 38 and 39 in the lines 32 and 33. If the Wet tower is taken out of operation, then of course the pump 36 is also switched off. Although no facility is provided is to take the drying tower out of operation, the device according to the invention has as in conventional drying tower constructions Means to adjust the capacity. So find

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Fan blade setting devices, adjustable blinds or flaps and tube bundles to be inserted in sections, etc. Use .

As mentioned above, the pipe section 30 is preferably attached to the drying tower section when the wet tower is taken out of service connected so that the coolant passing the drying tower through both pipe sections 30 and 31 of the condenser can run. For this purpose, a fifth line 40 connects the line 34 with the line 32 and is between the valve 38 and the inlet to the pipe section 30 is provided. A sixth line 41 connects line 35 with line 33 between valve 39 and the outlet of the pipe section 30. A valve 42 is provided within the line 40, while a valve 43 is provided in the line 41 is provided. When the valves or closure members 38 and 39 are closed, then each of the valves 42 and 43 can be opened to circulate coolant through lines 34 and 35 and through both pipe sections 30 and 31.

A device is provided to draw fresh water from the pipe section 30 and the adjacent parts of the lines 32 and 33 in the water basin 25 and to drain the fresh water through the to replace other coolant stored in a tank 43a. This device comprises several secondary lines that are connected to the Circulation lines as well as with the tank or container 43a are in connection. Thus, a seventh line connects the line 32 via a valve 38 and the inlet to the pipe section 30 with an eighth line 45, which in turn connects via the valve 39 to the line 33 communicates with the inlet of the wet tower 11. A ninth line 46 connects the line 33 via the valve 39 and the outlet

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of the pipe section 30 with the eighth line 45 in a parallel position to the seventh line 44. A pump 46a is provided between the valves 47 and 48 in the line 45, while a valve 49 located in line 46 between connections to lines 44 and 32. A ventilation or ventilation device 33A stands with the line 33 in connection and has a valve 33B, which during the drainage and during the filling of the pipe section 30 is opened.

Assuming that the other valves of the adjacent branch lines (of the type described below) are closed and the Valves 47, 48, 49 and 33B are open, then the pump 46a can in Be operated to withdraw fresh water from the pipe section 30 and the adjacent parts of the lines 32 and 33, the Establish the connection to line 33 via lines 44, 46 and 45. When the valves 38 and 39 are closed, the wet tower taken out of operation, then the water passes through the line 33 and is via the spray heads 23 into the housing of the wet tower 11 sprayed. It thus collects with other fresh water within the water basin 25.

The pipe section 30 and the adjacent parts of the lines 32 and 33 can then be filled with coolant which has been drained into the tank or container 43a. The tube bundle 29 of the dry cooling tower are both drained and filled with coolant from the container 43a, as is the case with the normal operating sequence of the Power plant is required. For this purpose, the bundles 29 are connected to the circulation line 34, which in turn is connected to the drainage and fill lines 50 and 51 connected to the top

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of the container. The valves 52 and 53 in lines 50 and 51 form a device for controlling the process and the filling of the tube bundle by means of coolant, which in the container or is passed out of the container 43a. An additional line 54 connects the bottom of a container to lines 51 and 56 and has a pump 55 in order to be able to pump coolant back into the line 34 and thus into the bundles 29 of the dry cooling tower. The conduit also has a valve 60a to control the flow of coolant back into the system. Lines 50, 51 and 54, the valves 52, 53 and 60a and the pump 55 as well as the container 43a correspond to standardized devices for drying tower systems.

The device for filling the pipe section 30 and associated Parts of the lines 32 and 33 include a line 56 with a branch or secondary line 59, which connects the container with the lines 44 and 46 connects and a valve 58 has. The line 56 has a further branch or secondary line 57, which between the valve 48 and the pump 46 a with the line 45 in connection and which has a valve 60. When the valves 52, 53, 47, 48 and 60 are closed, then the pump 55 can operate taken to the pipe section 30 and the associated parts of the lines 32 and 33 with coolant from the container 43a to fill via lines 54, 56 and 59. When the filling process is completed, the pump 55 is stopped, the valves 58 and 60 are closed and the valves 42 and 43 are slowly opened to connect the drying tower system to the pipe section 30.

If it is desired to return the wet tower 11 to operation, then the coolant is first out of the pipe section 30 and associated parts of the lines 32 and 33 into the container 43a

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drained. For this purpose the valves 42, 43, 48 and 58 closed, the valves 47, 33B, 60 and 53 are opened and the pump 46a is put into operation to supply the coolant to the Pump back tank or container 43a. If the pipe section and the associated lines are thus drained, that will Valve 47 is closed, valve 39 is opened wide and valve 38 is partially opened while pump 36 is started will. The valve 38 is then slowly opened wide, so that fresh water from the water basin 25 again enters the Pipe section 30 and the other parts of the adjacent lines 32 and 33 is pumped.

The embodiment according to FIG. 2 corresponds to the embodiment according to FIG. 1 in that it is an essential component Steam condenser 70, a wet cooling tower 71 and a dry cooling tower 72 together with lines connecting these components as well as additional devices of the type described below. As in the case of the condenser 10 is the steam condenser

70 provided inside the power plant while the cooling towers

71 and 72 rest outside the power plant at ground level G.

The steam condenser 70 has a shell or jacket 73 with an inlet 74 located at the top and with the turbine outlet 75 shown schematically in connection. At the lower end there is a sink or hot water tank 76 provided to collect condensed steam. The condensed steam flows in through the pouring or drainage space an outlet leading to a conduit 77. The line 77 is in communication with the line 78. Within line 78 is one Pump 79 is provided to transfer the condensate to the boiler or

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To return the boiler to the power plant.

The wet cooling tower 71 corresponds to the embodiment with its own draft and has a shaft or chimney 80, which at its lower end 81 is open to draw ambient air up through the chimney and out of the upper end of the chimney permit. Filling material or a packing 82 is fastened transversely with respect to the chimney or chimney via its open lower end 81, so that the air flowing upwards has to pass the filling material. A medium to be cooled in the wet tower 71 becomes given via an inlet 83A which is in communication with the manifold 84. The conduit 84 points above the filler material located spray heads 83. The cooling medium flows in a known manner through the filler 83 downwards and is inside a water basin 85 is collected below the tower inlet, with an outlet 85A opening out of the basin.

The dry cooling tower 72 also corresponds to an embodiment with own draft and has a shaft or a chimney 87, the open lower end 88 corresponding to the lower end of the Chimney 80 is designed to suck in ambient air through the lower end and discharge it up through the upper end. According to FIG. 2, one or more tube bundles 89 are arranged transversely to the chimney above the open lower end 88, so that Air can sweep up through the bundle. A lower row of the bundle is provided with an inlet 89A, while an upper row Row of the bundle is connected to an outlet 89B.

As can be seen schematically from FIG. 2, there is a section 90 of the tubes arranged within the jacket or housing so that

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the tubes are in the path of the steam flowing from the inlet to the outlet. According to the second embodiment according to the According to the invention, the pipe section 90 can be connected to a first medium which is cooled within the wet tower 11. A second coolant, cooled within the drying tower 72, is fed into the Case of the capacitor initiated. Spray heads 92 are arranged on the distributor line 91 above the pipe section 90. That The second coolant cools the steam from the turbine outlet with direct contact and becomes condensate with the other in the hot water drain 76 collected. A first conduit 93 connects the outlet 85A to the lower end of the pipe section 90, while a second conduit 94 connects the upper end of pipe section 90 to inlet 83A. On the other hand, coolant is from the outlet 89B of the drying tower is passed via a third line 95 into the distribution line 91 and is removed from the drain space 76 of the condenser 70 returned via line 77 and a fourth line 96 to the inlet of the tube bundle of the drying tower. The fourth line 96 connects line 77 to the inlet.

A pump 97 is located in the first line 93 to coolant to lead from the wet tower into the steam condenser and to return it for the purpose of passage into the wet tower. One Pump 98 is located on line 96 to transfer coolant from the steam condenser through the drying tower and then back into to pass the steam condenser and through it. As in the case of the device according to the first embodiment according to FIG Invention, the coolant is kept separate from each other in the circuit through the towers. As also according to the first embodiment of the invention, the coolant of the wet circuit can

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run it made of fresh water. Because the coolant running or flowing through the drying tower with steam condensate in the drainage chamber 76 is united, it is of course also condensate. For economic reasons, direct contact or mixing is avoided of the capacitor preferred. For operational reasons, the surface capacitor 10 proves to be advantageous because it prevents contamination of the steam condensate with the condensate circulating through the tube bundle of the drying tower and also enables the use of other coolants, such as the use of anti-freeze solutions, etc.

As in the case of the first embodiment of the invention, the Device according to the second embodiment can be used to take the wet tower out of operation during the winter months, while the drying tower is kept operational. For this purpose, a valve 99 is provided within the line 94, while there is a valve 100 in line 93. Closing these valves interrupts the circuit between the wet tower and the capacitor. At this point, of course, the pump 97 for the wet tower circuit is also stopped.

As in the case of the device according to the first embodiment, the pipe section 90 and the adjacent parts are the conduits 93 and 94 preferably connected to the drying tower circuit when the wet tower is taken out of operation, so that the condenser 70 is full is usable. For this purpose, a fifth line 101 connects line 95 with line 93 between valve 100 and pipe section 90, while a sixth line 102, the line 94 between valve 99 and pipe section 90 with the drain space or hot water tank 76 connects. In particular, there is a valve 103 in the

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Line 101 and a valve 104 in line 102, the opening these valves allow coolant to be directed from the drying tower through pipe section 90.

As in the case of the first embodiment of the invention, the coolant from the wet tower circuit from the pipe section 90 and from adjacent parts of the lines 93 and 94 are drained into the water basin 85 of the wet tower 81. To this end is a line 105 between the valve 104 and the connection of the line 102 with the line 94 in connection, while a Line 107 the line 105 with the line 93 between the valve 100 and the inlet to the pipe section 90 connects. As can be seen from FIG. 1, there is a pump 106 in the line 105 between the valves 109 and 110, the valve 109 between the pump 106 and the connection of the line 105 with the line 102 exists. As in the case of the device according to the first embodiment According to the invention, a vent or drain line 94A is provided which connects to line 94 between valve 99 and communicates with pipe section 90 and has a valve 94B. This can be opened during the filling and draining of the pipe section.

When valves 99 and 100 are closed to take the wet tower out of operation, valves 94B, 108, 109 and 110 are opened (the other valves of adjacent branch lines of the type described below are closed). The pump 106 can be put into operation to remove fresh water from the Pipe section 90 and adjacent parts of the lines 93 and 94 to pull off and to the water through the line 105 and 94 in the Direct inlet of the wet tower. From there the water is on the

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Filler and sprayed into the water basin 85.

When the fresh water has been drawn off or drained, then condensate can be fed from a tank 111, within which coolant normally passed through the drying tower is stored. As shown, a line 112 leads from the Line 96 for connection to line 113, which is with the top of the container 111 is connected, while the line 114 with communicates with the bottom of the container. A valve 115 is located is in line 113, while a valve 116 is in the Line 114 is located. As in the case of the first embodiment of the invention, the container or tank and correspond to Pump standardized parts of a drying tower system. A line 117 is connected to the line 96 connected to the line 119 is connected. The line 119 in turn connects the lines 105 and 107 and has a valve 121. So can the valves 116, 121,108 and 94B are opened (adjacent valves including valves 103, 104 and 109 are closed). the Pump 122 is operated to fill pipe section 90 with condensate from container 111.

The device for discharging the condensate from the pipe section 90 and associated parts of the lines 93 and 94 has a line 118, which connects line 117 with line 105 between the pump 106 and the valve 110 connects. When the valves 103, 104 and 116 closed and valves 94b, 108, 109, 120 and 115 open, the pump 106 can be put into operation in order to return the condensate to the container 111. Around the pipe section 90 with fresh water to fill from the basin 85, the pump 106 is stopped while the valves 108, 109, 120 and 115 are closed and that

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Valve 99 is opened wide. At the same time, the valve 100 becomes partial opened. The circulation pump 97 is now put into operation and the valve 100 is slowly opened wide to allow fresh water out to allow the water basin 85 to flow into the pipe 90 and into the associated parts of the lines 93 and 94. At this point you can the valve 94b must be closed.

The device according to the third embodiment of the invention 3 corresponds to the first two embodiments in that than they combine a steam condenser 130, a wet cooling tower 131 and a dry cooling tower 132 as essential components with suitable cables in connection with these components as well as additional devices described below. As in the case of the first two embodiments, the steam condenser is arranged within the power plant of a power plant, while the Cooling towers 131 and 132 are placed at ground level G outside the power plant.

As in the case of the first two embodiments according to the invention For example, the steam condenser 130 has a jacket 133 with an inlet 134 on its upper end. This stands with the turbine outlet 135 in connection, which is shown schematically. At the lower end is a hot water tank or hot water drain 136 is provided in which condensed vapor is accumulated. The condensate is withdrawn from the drain or sink and returned to the working cycle. This is done via an outlet, which is connected to a line 137 in FIG Connection.

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According to the cooling tower of the second embodiment of the invention, the wet cooling tower 131 corresponds to the embodiment with own train. The cooling tower 131 has a shaft or a chimney 139, which at its upper end and at its lower end 140 is open. Ambient air can therefore be drawn up through the chimney. Inside the housing above of the opened lower end 140 is a filling or packing 141 intended. Air has to pass this filling. The medium to be cooled in the wet tower is applied to the filler by means of spray heads 142 sprayed. The spray heads 142 are on a manifold 143 attached which communicates with inlet 131A on the wet tower. The coolant flows down and through the filler 141 is collected in a water basin 144 in the lower end of the housing. The water basin opens into an outlet 131B.

In one comparable to the drying tower 12 according to the first embodiment According to the third embodiment of the invention, the drying tower 132 is designed with mechanical tension and has a housing 145 standing on legs 146. on this allows air to flow through the opened lower end by means of a fan 148 located on the upper end of the housing to be sucked up. A tube bundle 149 extends laterally arranged in the housing above its open lower end, so that the air passes through this tube bundle. An upper one Row of the bundle is connected to the inlet 132A of the tower, while the lower row is connected to an outlet 132B of the tower is.

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As described above, the steam condenser is different

130 of the steam condensers of the first two embodiments according to the invention in that the coolant passed through both towers is passed through a single section 150 of tubes, which are in heat exchange relationship with the steam flowing from inlet 134 in FIG the drain space or hot water tank 136 flows.

A first conduit 150 is connected to the inlet 131A of the wet tower in communication and a second conduit 151 is connected to the outlet

131 B in connection. A third line 152 is in the same way with the inlet 132A of the tube bundle of the drying tower in connection, while a fourth line 153 is connected with the outlet 132B is. The opposite ends of conduits 150 and 152 communicate with a fifth conduit 154, which is from the outlet end of the pipe section 150 branches off, while the opposite ends of the lines 151 and 153 with a sixth line 155 connected. This stands with the inlet end of the pipe section 150 in connection.

A pump 156 is located in line 151 and directs the coolant from the outlet of the wet tower through the pipe section and back into and through the wet tower. The other hand is a pump 157 is provided in line 153 to convey the coolant from the outlet of the drying tower through pipe section 150 and back into the To direct drying tower.

According to FIG. 3, the line 153 preferably consists of two sections 153a and 153b, the section 153a being the outlet of the Drying tower connects with the water basin 144, during the

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Section 153b connects the water basin to line 155. Within A pump 157 is provided in the section 153b. This simplifies the pumping problem for pump 157 in that both Pumps 156 and 157 have the same suction and discharge spaces.

According to FIG. 3, a secondary or bypass line 160a connects the Line sections 153a and 153b below the water basin. Within the line 160a there is a valve 161, while a Valve 160 is provided in the line section 153b above the connection with the section 153a. A valve 159 is inside of the line section 153a arranged. During the winter, a certain power of the pump 157 can be saved by the valves 159 and 160 are closed and the valve 161 is opened.

As mentioned above, the embodiment according to FIG. 3 has cost advantages, since it only requires two circulation lines, which are related to the steam condenser. It also has fewer condenser water boxes or collecting areas, so the capacitor is less expensive. On the other hand, dirty fresh water is used in the drying tower, which means cleaning of the tubes according to the embodiment with surface capacitors.

As in the case of the first two embodiments according to the invention, the wet tower can be taken out of operation during the winter months will. So it is only necessary to have a valve 158 in the Line 150 to close and the pump 156 to stop. There .only one As medium circulates through the wet and dry systems, it is not necessary to place the pipe section 150 inside the steam condenser 130 drain and refill.

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The device shown in Fig. 4 according to the fourth embodiment according to the invention corresponds essentially to the first three Embodiments of FIGS. 1, 2 and 3 in that they are essential Components of a steam condenser 170, a wet cooling tower 171, a dry cooling tower 1 72 as well as suitable lines, which are associated with these components. The device is also equipped with the necessary ancillary or auxiliary devices. As in the case of the embodiments described above, the steam condenser is preferably located inside of the power plant, while the cooling towers 171 and 172 are placed outside the power plant at ground level G.

Compared to the first three embodiments according to the invention the surface vapor condenser 1 70 has a pair of housing parts or shell bodies 173 and 174, each with a Steam line or manifold 175 are in communication. These absorbs steam from turbine outlet 1 76 of the power plant. As shown in the drawing, steam emerges from a first Branch line 177 enters the jacket and enters the housing or the capacitor jacket 174 via a second branch line 178. A first coolant is passed through tubes 190 extending within of the housing 173, while a second coolant is passed through tubes 197 located within the housing 174 will. Thus, the vapor is condensed by the coolant passed through each housing part, with the condensate within the Hot water boxes or drainage areas 179 and 180 in the lower end the housing 1 73 and 1 74 is accumulated. The lines 1 79A and 180A branching off from the outlets of the drainage spaces 179 and 180 are in communication with a line 181 in which a pump 182 is provided. This serves to remove the condensate in the working

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to pump back the circuit.

In one of the cooling towers of the first and third embodiments In a manner comparable to that of the invention, the cooling tower 1 71 corresponds to the construction with mechanical tension and has a housing 183 up, on the opposite sides of which louvers or flaps 184 are provided. A fan 185 is arranged at the open upper end. A fill or packing 186 is provided within the housing below the fan and facing the blinds. Thus, ambient air is passed through this filler as the air through the flaps up through the open top The end of the housing is sucked. A medium to be cooled, which can be water, is sprayed over the top by means of spray heads 187 of the filler is sprayed. The spray heads 187 are on a manifold 188 extending inward from inlet 188A in the housing extends. The coolant flowing down through the filler collects in a water basin 189 at the lower end of the housing. This is connected to an outlet 189A.

The first, through the tubes 190 within the housing 173 of the condenser 170 flowing coolant is cooled within the wet cooling tower 173. According to FIG. 4, a line 192 connects the Outlet 189A of the water basin 189 of the wet tower with a Condenser water box that communicates with the lower end of the tubes. A line 193 connects a condenser water tank, that communicates with the upper end of the tubes 190 to the inlet 188A of the spray head manifold 188 of the Wet tower .-- The coolant is pumped through the tower and through the tubes 190 by means of a pump 191 located in the line 192 directed.

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The second coolant flowing through the tubes 197 becomes inside of the dry cooling tower 1 72 cooled. This is in accordance with the dry cooling towers according to the first and third embodiment designed to act with mechanical train. The dry cooling tower has a housing 194 which is on legs above the ground level G stands so that ambient air can be drawn up through the opened lower end. As schematically in Fig. 4 As shown, a tube bundle 196 is laterally extending arranged in the path of the air flow in the housing. The left end of the bundle is connected to an inlet 196A, while the outlet of the bundle communicates with outlet 196B stands. The second coolant that communicates from outlet 196B to the lower end of tubes 197 Water tank is passed by means of a conduit 198, flows from the opposite ends of the tubes 197 of the tube bundle via line 199 back to inlet 196A.

In this embodiment of the invention, the second is through which Tubes .197 Coolant flowing and thus steam condensing inside the housing is not water, but consists of Ammonia, which is known to be an excellent cooling medium. Compared to water, ammonia has a low value Freezing point and excellent heat transfer properties. It is also known to work with ammonia in one System self-circulation consists, with ammonia in the condensation evaporated by steam, so there is no need for circulation pumps.

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In this ammonia coolant circuit, the ammonia vapor condenses inside the dry cooling tower 172 and is thus in liquid form is entered into the lower end of the tubes 197. A loop seal or loop lock 200 is preferred provided within line 198 to prevent backflow of gas within the line. The liquid ammonia will partially evaporated by the steam within the condenser housing 1 74. The condensate and vapors are through the top The end of the tubes 197 is fed into a separator container 201, which is connected above the housing 174 by means of a line 202 is. The liquid ammonia from the container is discharged by means of a line leading from the bottom of the container 201 to the line 198 fed through tubes 197. The line 199 is on the other hand with the upper end of the container 201 in communication and absorbs ammonia vapors to these in the bundle 196 of the drying tower and to condense in it.

As in the case of the previously described embodiments, the wet tower 1 71 can be out of operation during the winter months be taken out. For this purpose it is only necessary to switch off the pump 191 in order to start the circuit of the first coolant through the tubes 190 to prevent. In addition, it is only necessary to turn off the fans 185.

609853/0781

Claims (10)

PATENT CLAIMS M .1 condenser system, in particular for condensing the exhaust steam from a turbine of a power plant or the like, with a steam condenser, the inlet of which absorbs steam from the turbine outlet and the outlet of which guides the condensate back into the working circuit of the power plant, with a cooling tower device, comprising a wet section and a dry section, of which the wet section has an inlet for receiving a coolant and an outlet to release the coolant again, furthermore a device for cooling the coolant with ambient air when it flows from the inlet to the outlet, while the dry section has an inlet for receiving a coolant, a Having an outlet for discharging the coolant and means to cool the coolant with ambient air as it flows from the inlet to the outlet, with means connecting the inlet and the outlet of each tower section to one another in order to circulate the medium cooled in each tower section to pass through the steam condenser in heat exchange relationship with the steam passing through the condenser, and with a device which is able to interrupt the circulation of the coolant between the wet tower and the steam condenser, characterized in that the wet and dry sections consist of separate wet and Dry towers exist. - 26 - 609853/0781 2. Condenser system according to claim 1, characterized in that the steam condenser (10) has a single housing (13) through which both coolants are passed. 3. Condenser system according to claim 1, characterized in that the steam condenser has a plurality of housing parts through which coolant is passed in each case. 4. capacitor system according to claim 1, characterized by a Circulation device to separate the first and second coolants through the wet and dry towers and through the steam condenser to pass through each other. 5. Capacitor system according to one of the preceding claims, characterized in that the circulating means comprises means for circulating the first and second coolants through first and second sets of tubes pass inside the steam condenser. 6. Capacitor system according to one of the preceding claims, characterized in that the circulating device comprises means for circulating the first coolant through tubes within the steam condenser and means for introducing the second refrigerant into the steam condenser and around the condensate from the steam condenser back into the drying tower. 7. Capacitor system according to one of the preceding claims, characterized in that the circulation device has means to also pass the second coolant through the tubes when the circulation between the wet tower and the steam condenser is interrupted. - 27- 6098 5 3/0781 8. capacitor system according to claim 1, characterized in that the circulating means comprises means for combining the coolant passing through the wet tower with the coolant passing through the drying tower to pass them together through the steam condenser. 9. Condenser system, in particular for condensing the exhaust steam from a turbine of a power plant or the like, with a Steam condenser, the inlet of which takes up steam from the turbine outlet, condensed with a hot chamber drain space for uptake Steam and with an outlet for the return of the condensate from the drain space into the working circuit, with a cooling tower device, a wet section and a dry section, of which the wet section has an inlet for receiving a first coolant, an outlet for draining the first coolant and means for cooling the first Coolant with ambient air as it flows from the inlet to the outlet, the drying tower section having an inlet for receiving it of a second coolant, furthermore an outlet for discharging the second coolant and a device around the to cool second coolant with ambient air as it flows from the inlet to the outlet, with a device which the first coolant from the outlet of the wet cooling tower section into tubes within and through the condenser and back into directs the inlet of the wet cooling tower section, with a further device, to the second coolant from the outlet of the dry cooling tower section into the condenser, through the latter and back to the inlet of the dry cooling tower section, and with a device that allows the circulation of the first coolant between the wet cooling tower section and the condenser tubes -28 - 09853/0781 able to interrupt, characterized in that the system has means to drain the first coolant from the tubes and to fill the tubes with the second coolant when the circulation is interrupted while another facility the second coolant is drained from the tubes and is able to refill the tubes with the first coolant, such that the Circulation of the first coolant between the wet tower section and the condenser tubes can be resumed. 10. Condenser system according to claim 9, characterized in that the outlet of the wet tower has a water basin to to collect the first coolant below the filler that the system has a container in which the second coolant A device can be drained to drain the first coolant from the tubes into the water basin and around the tubes to fill with the second coolant from the container when the circulation is interrupted, and that a device the second coolant passes out of the tubes back into the container and is able to fill the tubes with the first coolant of the water container again. 609853/0781 Blank