CA2191254A1 - Power plant with interconnected condenser - Google Patents
Power plant with interconnected condenserInfo
- Publication number
- CA2191254A1 CA2191254A1 CA002191254A CA2191254A CA2191254A1 CA 2191254 A1 CA2191254 A1 CA 2191254A1 CA 002191254 A CA002191254 A CA 002191254A CA 2191254 A CA2191254 A CA 2191254A CA 2191254 A1 CA2191254 A1 CA 2191254A1
- Authority
- CA
- Canada
- Prior art keywords
- condenser
- water
- steam
- power plants
- lost
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B7/00—Combinations of two or more condensers, e.g. provision of reserve condenser
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
This invention relates to power generating systems, particularly those used in large power plants used to generate electricity, including both coal fired and nuclear power plants.
In electrical power plants that use thermal energy (coal, oil, gas or nuclear fuel) to generate electricity efficiency is about 40%. A lot of energy is lost in the condenser.
Efficiency Energy lost in the condenser 45% 38%
40% 41%
35% 48%
32% 48%
In the rankine cycle we need a condenser to condense steam into liquid water. In that process we use water from environment (lake, river or ocean) or air to cool steam.
During that process thermal pollution is created.
With this invention half of thermal energy lost in the condenser could be put back into rankine cycle.
In electrical power plants that use thermal energy (coal, oil, gas or nuclear fuel) to generate electricity efficiency is about 40%. A lot of energy is lost in the condenser.
Efficiency Energy lost in the condenser 45% 38%
40% 41%
35% 48%
32% 48%
In the rankine cycle we need a condenser to condense steam into liquid water. In that process we use water from environment (lake, river or ocean) or air to cool steam.
During that process thermal pollution is created.
With this invention half of thermal energy lost in the condenser could be put back into rankine cycle.
Description
5LIl Specifications This invention relates to electrical power plant condensers or heat exchanger.
It is common practice in today's thermal power plants that reheat-regenera~
cycle is used to improve efficiency of power plant. In that process steam from high pressure turbine is reheated before it is sent into low pressure turbine. After water is condensed it is heated by steam bled from turbine then mixture is fed to boiler. In reheat-regenerative cycle improvements are very small because majority of heat of steam is lost in environment. With use of interconnecting condenser loss of thermal energy in condenser will be smaller and that will improve efficiency. Interconnecting condenser could be used in combination with reheat-regenerative cycle.
Other benefits of interconnecting condenser would be:
~ building one large interconnecting condenser will be cheaper per unit of energy than installing lots of small heaters in regenerative cycle.
~ cooling towers will be smaller because less heat will be needed to carry away.
~ size of nuclear reactor will be cut by 20% and that will also mean more safety and less nuclear waste.
~ cutting atmospheric pollution by 20% (global warming).
~ alql2S~
Drawings In the drawings, Figure 1 is a schematic view illustrating the major components of a power generating system constructed in accordance with the invention; and 2 1 9 1 25~
Figure 2 is a schematic illustration of a second embodiment of the invention.
The primary, novel feature of the invention is an interconnected or two stage condenser 10 having a first stage or first heat exchanger 12 and a second stage or second heat exchanger 14. Connected to the top of the condenser is the low pressure side of a standard turbine 16. Also connected to the condenser by means of water pipe 18 is a large steam generating boiler 20. In a well known manner, the turbine 16 drives an electrical generator 22 to produce electrical power. The water passing through the pipes 24 in the boiler is turned to high pressure steam that passes through conduit 26 to the turbine. This steam drives the turbine in a well known manner. The steam that leaves the turbine 16 is lower pressure steam that, as indicated, passes to the condenser 10 where it comes into contact with the first stage 12 and is cooled by condensed water passing through the piping 30. The heat given up by the low pressure steam causes the water passing through piping 30 to be preheated before it passes to the boiler 20. It is expected in the first stage of the condenser that approximately half of the heat in the lower pressure steam will be used to preheat the water passing through the first stage.
The cooler low pressure steam that is passed through the first stage 12 will then come into contact with the second stage or second heat exchanger at 14 where water from a cooling tower or other local source of water passes through the piping 32. This water is used to condense the steam into water which is cooled as much as possible before it is pumped from the condenser through bottom outlet 34 by means of pump 36. This water 2 ! q 1254 ~._ is then preheated in the first stage of the condenser before passing to the boiler.
In the embodiment of Figure 1, cool water from a cooling tower 40 is used in the second stage of the condenser, entering into the condenser through pipe 42 and r~ lh~g to the cooling tower through pipe 44. In the embodiment of Figure 2, the arrangement is basically the same except for the source of the cooling water which, as indicated in the figure, is pumped from a local water source such as a river, lake or ocean.
Interconnected condensers described above can be used in combination with any thermal cycle; not only rankine cycle.
The advantage of a power plant equipped with the condenser of the invention are that less thermal energy will be required to produce the same amount of electricity since the water is preheated before it enters the boiler and there should be less environmental pollution. In other words, a power plant constructed in accordance with the invention should be more efficient.
It is common practice in today's thermal power plants that reheat-regenera~
cycle is used to improve efficiency of power plant. In that process steam from high pressure turbine is reheated before it is sent into low pressure turbine. After water is condensed it is heated by steam bled from turbine then mixture is fed to boiler. In reheat-regenerative cycle improvements are very small because majority of heat of steam is lost in environment. With use of interconnecting condenser loss of thermal energy in condenser will be smaller and that will improve efficiency. Interconnecting condenser could be used in combination with reheat-regenerative cycle.
Other benefits of interconnecting condenser would be:
~ building one large interconnecting condenser will be cheaper per unit of energy than installing lots of small heaters in regenerative cycle.
~ cooling towers will be smaller because less heat will be needed to carry away.
~ size of nuclear reactor will be cut by 20% and that will also mean more safety and less nuclear waste.
~ cutting atmospheric pollution by 20% (global warming).
~ alql2S~
Drawings In the drawings, Figure 1 is a schematic view illustrating the major components of a power generating system constructed in accordance with the invention; and 2 1 9 1 25~
Figure 2 is a schematic illustration of a second embodiment of the invention.
The primary, novel feature of the invention is an interconnected or two stage condenser 10 having a first stage or first heat exchanger 12 and a second stage or second heat exchanger 14. Connected to the top of the condenser is the low pressure side of a standard turbine 16. Also connected to the condenser by means of water pipe 18 is a large steam generating boiler 20. In a well known manner, the turbine 16 drives an electrical generator 22 to produce electrical power. The water passing through the pipes 24 in the boiler is turned to high pressure steam that passes through conduit 26 to the turbine. This steam drives the turbine in a well known manner. The steam that leaves the turbine 16 is lower pressure steam that, as indicated, passes to the condenser 10 where it comes into contact with the first stage 12 and is cooled by condensed water passing through the piping 30. The heat given up by the low pressure steam causes the water passing through piping 30 to be preheated before it passes to the boiler 20. It is expected in the first stage of the condenser that approximately half of the heat in the lower pressure steam will be used to preheat the water passing through the first stage.
The cooler low pressure steam that is passed through the first stage 12 will then come into contact with the second stage or second heat exchanger at 14 where water from a cooling tower or other local source of water passes through the piping 32. This water is used to condense the steam into water which is cooled as much as possible before it is pumped from the condenser through bottom outlet 34 by means of pump 36. This water 2 ! q 1254 ~._ is then preheated in the first stage of the condenser before passing to the boiler.
In the embodiment of Figure 1, cool water from a cooling tower 40 is used in the second stage of the condenser, entering into the condenser through pipe 42 and r~ lh~g to the cooling tower through pipe 44. In the embodiment of Figure 2, the arrangement is basically the same except for the source of the cooling water which, as indicated in the figure, is pumped from a local water source such as a river, lake or ocean.
Interconnected condensers described above can be used in combination with any thermal cycle; not only rankine cycle.
The advantage of a power plant equipped with the condenser of the invention are that less thermal energy will be required to produce the same amount of electricity since the water is preheated before it enters the boiler and there should be less environmental pollution. In other words, a power plant constructed in accordance with the invention should be more efficient.
Claims
Les revendications ne sont pas Claims Not Yet Availabledisponibles en ce moment
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002191254A CA2191254A1 (en) | 1996-11-26 | 1996-11-26 | Power plant with interconnected condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002191254A CA2191254A1 (en) | 1996-11-26 | 1996-11-26 | Power plant with interconnected condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2191254A1 true CA2191254A1 (en) | 1998-05-26 |
Family
ID=4159313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002191254A Abandoned CA2191254A1 (en) | 1996-11-26 | 1996-11-26 | Power plant with interconnected condenser |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2191254A1 (en) |
-
1996
- 1996-11-26 CA CA002191254A patent/CA2191254A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |