CN219300718U - Power generation and heat supply system with carbon capture function - Google Patents
Power generation and heat supply system with carbon capture function Download PDFInfo
- Publication number
- CN219300718U CN219300718U CN202320214065.0U CN202320214065U CN219300718U CN 219300718 U CN219300718 U CN 219300718U CN 202320214065 U CN202320214065 U CN 202320214065U CN 219300718 U CN219300718 U CN 219300718U
- Authority
- CN
- China
- Prior art keywords
- inlet end
- pressure cylinder
- pipeline
- outlet end
- valve
- 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.)
- Active
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to the field of ignition power generation, in particular to a power generation and heat supply system with a carbon capture function, which aims to solve the problems that the existing unit consumes more heat for generating heat, energy loss is caused by carbon dioxide separation, carbon capture cost is increased, the unit fails to reasonably distribute heat and excessive heat is wasted; the third air outlet end of the high-medium pressure cylinder is connected with the inlet end of the regeneration tower, the liquid outlet end of the regeneration tower is connected with the liquid inlet end of the reboiler, the gas inlet end of the regeneration tower is connected with the gas outlet end of the reboiler, the fourth air outlet end of the high-medium pressure cylinder is connected with the air inlet end of the deaerator, and the heat supply system has comprehensive functions and higher heat application rate.
Description
Technical Field
The utility model relates to the field of ignition power generation, in particular to a power generation and heat supply system with a carbon trapping function.
Background
The centralized heat supply of the large-scale cogeneration unit currently faces new situations of new energy consumption and deep peak regulation, for the large-scale cogeneration unit, the carbon emission needs to be controlled in the coal-fired power generation so as to reduce the influence of the coal-fired power generation on the environment, the existing unit needs to consume more heat for generating heat for separating carbon dioxide, the energy loss is caused, the carbon capture cost is increased, the unit fails to reasonably distribute the heat, and excessive heat is wasted.
Disclosure of Invention
The utility model aims to solve the problems that the existing unit consumes more heat for generating heat, energy is consumed for separating carbon dioxide, carbon capture cost is increased, the unit cannot reasonably distribute the heat, and excessive heat is wasted.
The utility model is realized by the following scheme:
a power generation and heat supply system with a carbon trapping function comprises a high-medium pressure cylinder, a low-pressure cylinder, a heating network heater, a condenser, a deaerator, a reboiler and a regeneration tower;
the first steam outlet end of the high-medium pressure cylinder is connected with the steam inlet end of the low-pressure cylinder through a pipeline, a first valve is arranged on the pipeline between the first steam outlet end of the high-medium pressure cylinder and the steam inlet end of the low-pressure cylinder, and the steam outlet end of the low-pressure cylinder is connected with the inlet end of the condenser through a pipeline;
the second steam outlet end of the high-medium pressure cylinder is connected with the inlet end of the heat supply network heater through a pipeline, a second valve is arranged on the pipeline between the second steam outlet end of the high-medium pressure cylinder and the inlet end of the heat supply network heater,
the outlet end of the heat supply network heater is connected with the inlet end of the condenser through a pipeline;
the third steam outlet end of the high-medium pressure cylinder is connected with the inlet end of the regeneration tower through a pipeline, a reboiler is arranged on the pipeline between the third steam outlet end of the high-medium pressure cylinder and the inlet end of the regeneration tower, and a fourth valve is arranged on the pipeline between the high-medium pressure cylinder and the reboiler;
the liquid inlet end of the regeneration tower is used for injecting rich liquid, the liquid outlet end of the regeneration tower is connected with the liquid inlet end of the reboiler, the gas inlet end of the regeneration tower is connected with the gas outlet end of the reboiler, the gas outlet end of the regeneration tower is used for discharging carbon dioxide,
the fourth steam outlet end of the high-medium pressure cylinder is connected with the steam inlet end of the deaerator through a pipeline, a fifth valve is arranged on the pipeline between the fourth steam outlet end of the high-medium pressure cylinder and the steam inlet end of the deaerator, the liquid inlet end of the deaerator is connected with the liquid outlet end of the reboiler through a pipeline, a low-temperature reheater is arranged on the pipeline between the liquid inlet end of the deaerator and the liquid outlet end of the reboiler, the liquid inlet end of the low-temperature reheater is connected with the condensed water discharge end of the condenser through a pipeline, and a sixth valve is arranged on the pipeline between the liquid inlet end of the low-temperature reheater and the condensed water discharge end of the condenser.
Further, the first valve is an isolation valve.
Still further, a third valve is further arranged on a pipeline between the first steam outlet end of the high-medium pressure cylinder and the steam inlet end of the low-pressure cylinder, and the third valve is an adjusting valve.
Further, the second valve is a regulating valve.
Still further, be equipped with the heat supply network drain pump on the pipeline between the exit end of heat supply network heater and the entry end of condenser.
Further, the liquid inlet end of the low-temperature reheater is also connected with a condensed water injection pipe.
The beneficial effects are that: the scheme has the advantages that the heat can be reasonably distributed by the unit, the unit can be adjusted to supply heat under the working condition of heat supply, the working condition of pure condensation, the working condition of conventional extraction condensation heat supply, the working condition of carbon capture with smaller electricity consumption and the power supply, heat supply or carbon capture requirement of the working condition of carbon capture with extremely small electricity consumption, the heat generated by the high-medium pressure cylinder is reasonably distributed, the application rate of the heat is improved, the energy loss is reduced, the heat is effectively applied under the working condition of heat supply, the working condition of pure condensation and the working condition of conventional extraction condensation heat supply when the cylinder with the carbon capture cost is saved, and the heat supply system has comprehensive functions and higher heat application rate.
Drawings
Fig. 1 is a schematic diagram of the utility model.
Detailed Description
The first embodiment is as follows: a power generation and heat supply system with a carbon trapping function comprises a high-medium pressure cylinder 1, a low-pressure cylinder 2, a heating network heater 3, a condenser 4, a deaerator 5, a reboiler and a regeneration tower 8;
the first steam outlet end of the high-medium pressure cylinder 1 is connected with the steam inlet end of the low-pressure cylinder 2 through a pipeline, a first valve 9 is arranged on the pipeline between the first steam outlet end of the high-medium pressure cylinder 1 and the steam inlet end of the low-pressure cylinder 2, and the steam outlet end of the low-pressure cylinder 2 is connected with the inlet end of the condenser 4 through a pipeline;
the second steam outlet end of the high and medium pressure cylinder 1 is connected with the inlet end of the heat supply network heater 3 through a pipeline, a second valve 11 is arranged on the pipeline between the second steam outlet end of the high and medium pressure cylinder 1 and the inlet end of the heat supply network heater 3,
the outlet end of the heat supply network heater 3 is connected with the inlet end of the condenser 4 through a pipeline;
the third steam outlet end of the high and medium pressure cylinder 1 is connected with the inlet end of the regeneration tower 8 through a pipeline, a reboiler 7 is arranged on the pipeline between the third steam outlet end of the high and medium pressure cylinder 1 and the inlet end of the regeneration tower 8, and a fourth valve 15 is arranged on the pipeline between the high and medium pressure cylinder 1 and the reboiler 7.
The liquid inlet end of the regeneration tower 8 is used for injecting rich liquid, the liquid outlet end of the regeneration tower 8 is connected with the liquid inlet end of the reboiler 7, the gas inlet end of the regeneration tower 8 is connected with the gas outlet end of the reboiler 7, the gas outlet end of the regeneration tower 8 is used for discharging carbon dioxide,
the fourth steam outlet end of the high-medium pressure cylinder 1 is connected with the steam inlet end of the deaerator 5 through a pipeline, a fifth valve 14 is arranged on the pipeline between the fourth steam outlet end of the high-medium pressure cylinder 1 and the steam inlet end of the deaerator 5, the liquid inlet end of the deaerator 5 is connected with the liquid outlet end of the reboiler 7 through a pipeline, a low-temperature reheater 6 is arranged on the pipeline between the liquid inlet end of the deaerator 5 and the liquid outlet end of the reboiler 7, the liquid inlet end of the low-temperature reheater 6 is connected with the condensed water discharge end of the condenser 4 through a pipeline, and a sixth valve 16 is arranged on the pipeline between the liquid inlet end of the low-temperature reheater 6 and the condensed water discharge end of the condenser 4.
In this embodiment, the following will be described:
under the heating working condition, the second valve is opened, the first valve is partially opened, the fourth valve and the fifth valve are closed, a small amount of exhaust steam (steam) enters the low-pressure cylinder to cool the low-pressure rotor, the low-pressure cylinder does little work, most of the steam enters the heat supply network heater to exchange heat with the heat supply network circulating water, and the cooled water after heat exchange enters the condenser.
Under the conventional condensing heat supply working condition, the second valve and the first valve are in an open state, the opening sizes of the second valve and the first valve are properly adjusted according to the needs, part of steam enters the low-pressure cylinder to be used for generating electricity and doing work, part of steam enters the heat supply network heater to exchange heat for heat supply network circulating water, and cooled water after heat exchange enters the condenser.
Under the pure condensation condition, the first valve is opened, the second valve, the fifth valve and the fourth valve are closed, and exhaust steam of the high-pressure cylinder enters the low-pressure cylinder through the first valve to be used for generating electricity and doing work.
Under the condition that the low-pressure cylinder is used for generating electricity and doing work, the carbon trapping is properly carried out according to different requirements,
when the electricity consumption requirement is extremely high, the valve is opened in the same way as the valve under the pure condensation working condition.
Under the carbon trapping working condition with smaller electricity demand, the first valve and the fifth valve are opened, the second valve is closed, the fourth valve is completely opened, part of steam enters the low-pressure cylinder to meet the electricity generating demand, part of steam enters the deaerator, and the rest of steam enters the reboiler; the method comprises the steps that a liquid inlet end of a regeneration tower is used for injecting rich liquid, the rich liquid contains carbon dioxide, the rich liquid flows through the regeneration tower to enter a reboiler and then flows back to the regeneration tower, high and medium pressure cylinder steam is discharged to enter the reboiler, heat is used for vaporizing the rich liquid, carbon dioxide in the rich liquid is separated, the steam discharged from the high and medium pressure cylinder releases heat to become liquid through the reboiler, the liquid is heated through a low-temperature reheater and then enters a deaerator for utilization, in the process, a sixth valve can be opened according to actual needs, and condensed water in a condenser is injected into the low-temperature reheater;
when the carbon trapping working condition with little electricity consumption is adopted, the first valve and the fifth valve are opened, the second valve is closed, the fourth valve is completely opened, part of steam enters the low-pressure cylinder for cooling the low-pressure rotor, the low-pressure cylinder does little work, and the rest of steam enters the reboiler; the liquid inlet end of the regeneration tower is used for injecting rich liquid, the rich liquid contains carbon dioxide, the rich liquid flows through the regeneration tower to enter a reboiler and then flows back to the regeneration tower, the high and medium pressure cylinder steam is discharged to enter the reboiler, heat is used for vaporizing the rich liquid, carbon dioxide in the rich liquid is separated, the steam discharged from the high and medium pressure cylinder is discharged to release heat to become liquid through the reboiler, the liquid is heated through the low-temperature reheater and then enters the deaerator for utilization, in the process, a sixth valve can be opened according to actual needs, and condensed water in the condenser is injected into the low-temperature reheater.
The second embodiment is as follows: the first valve 9 is an isolation valve.
In this embodiment, the following will be described: the isolation valve is used for adjusting whether the connecting pipeline of the high-medium pressure cylinder and the low-pressure cylinder is communicated.
Other embodiments are the same as the first embodiment.
And a third specific embodiment: a third valve 10 is further arranged on a pipeline between a first steam outlet end of the high-medium pressure cylinder 1 and a steam inlet end of the low-pressure cylinder 2, and the third valve 10 is an adjusting valve.
In this embodiment, the following will be described: the third valve is a regulating valve, so that the flow rate is convenient to regulate, namely the flow rate of hot water entering the low-pressure cylinder by the high-medium-pressure cylinder is regulated.
Other embodiments are the same as the first embodiment.
The specific embodiment IV is as follows: the second valve 11 is a regulating valve.
In this embodiment, the following will be described: the second valve is a regulating valve, so that the flow is convenient to regulate, namely the flow of hot water entering the heating network heater by the high and medium pressure cylinders is regulated.
Other embodiments are the same as the first embodiment.
Fifth embodiment: a power generation and heat supply system with a carbon capture function is characterized in that a heat supply network drain pump 12 is arranged on a pipeline between an outlet end of a heat supply network heater 3 and an inlet end of a condenser 4.
In this embodiment, the following will be described: after being cooled by the hot net heater, the water is pumped into a condenser through a hot net drain pump, so as to complete working medium circulation.
Other embodiments are the same as the first embodiment.
Specific embodiment six: a power generation and heat supply system with a carbon trapping function is characterized in that a condensed water injection pipe 13 is also connected to the liquid inlet end of the low-temperature reheater 6.
In this embodiment, the following will be described: the condensed water is heated by the low-temperature heater, the deaerator deoxidizes the condensed water and the liquid discharged from the reboiler and then conveys the deoxidized condensed water and the liquid discharged from the reboiler into the boiler for continuous use, and steam in the boiler enters the high-medium pressure cylinder and the low-pressure cylinder for power generation.
Other embodiments are the same as the first embodiment.
Claims (6)
1. The utility model provides a power generation heating system that possesses carbon entrapment function which characterized in that: the device comprises a high-medium pressure cylinder (1), a low-pressure cylinder (2), a heat supply network heater (3), a condenser (4), a deaerator (5), a reboiler (7) and a regeneration tower (8);
the first steam outlet end of the high-medium pressure cylinder (1) is connected with the steam inlet end of the low-pressure cylinder (2) through a pipeline, a first valve (9) is arranged on the pipeline between the first steam outlet end of the high-medium pressure cylinder (1) and the steam inlet end of the low-pressure cylinder (2), and the steam outlet end of the low-pressure cylinder (2) is connected with the inlet end of the condenser (4) through a pipeline;
the second steam outlet end of the high and medium pressure cylinder (1) is connected with the inlet end of the heat supply network heater (3) through a pipeline, a second valve (11) is arranged on the pipeline between the second steam outlet end of the high and medium pressure cylinder (1) and the inlet end of the heat supply network heater (3), and the outlet end of the heat supply network heater (3) is connected with the inlet end of the condenser (4) through a pipeline;
the third steam outlet end of the high and medium pressure cylinder (1) is connected with the inlet end of the regeneration tower (8) through a pipeline, a reboiler (7) is arranged on the pipeline between the third steam outlet end of the high and medium pressure cylinder (1) and the inlet end of the regeneration tower (8), and a fourth valve (15) is arranged on the pipeline between the high and medium pressure cylinder (1) and the reboiler (7);
the liquid inlet end of the regeneration tower (8) is used for injecting rich liquid, the liquid outlet end of the regeneration tower (8) is connected with the liquid inlet end of the reboiler (7), the gas inlet end of the regeneration tower (8) is connected with the gas outlet end of the reboiler (7), and the gas outlet end of the regeneration tower (8) is used for discharging carbon dioxide;
the fourth steam outlet end of the high-medium pressure cylinder (1) is connected with the steam inlet end of the deaerator (5) through a pipeline, a fifth valve (14) is arranged on the pipeline between the fourth steam outlet end of the high-medium pressure cylinder (1) and the steam inlet end of the deaerator (5), the liquid inlet end of the deaerator (5) is connected with the liquid outlet end of the reboiler (7) through a pipeline, a low-temperature reheater (6) is arranged on the pipeline between the liquid inlet end of the deaerator (5) and the liquid outlet end of the reboiler (7), the liquid inlet end of the low-temperature reheater (6) is connected with the condensed water discharge end of the condenser (4) through a pipeline, and a sixth valve (16) is arranged on the pipeline between the liquid inlet end of the low-temperature reheater (6) and the condensed water discharge end of the condenser (4).
2. The power generation and heat supply system with carbon capture function as claimed in claim 1, wherein: the first valve (9) is an isolation valve.
3. The power generation and heat supply system with carbon capture function as claimed in claim 1, wherein: and a third valve (10) is further arranged on a pipeline between the first steam outlet end of the high-medium pressure cylinder (1) and the steam inlet end of the low-pressure cylinder (2), and the third valve (10) is a regulating valve.
4. The power generation and heat supply system with carbon capture function as claimed in claim 1, wherein: the second valve (11) is a regulating valve.
5. The power generation and heat supply system with carbon capture function as claimed in claim 1, wherein: and a heat supply network drainage pump (12) is arranged on a pipeline between the outlet end of the heat supply network heater (3) and the inlet end of the condenser (4).
6. The power generation and heat supply system with carbon capture function as claimed in claim 1, wherein: the liquid inlet end of the low-temperature reheater (6) is also connected with a condensed water injection pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320214065.0U CN219300718U (en) | 2023-02-14 | 2023-02-14 | Power generation and heat supply system with carbon capture function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320214065.0U CN219300718U (en) | 2023-02-14 | 2023-02-14 | Power generation and heat supply system with carbon capture function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219300718U true CN219300718U (en) | 2023-07-04 |
Family
ID=86983247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320214065.0U Active CN219300718U (en) | 2023-02-14 | 2023-02-14 | Power generation and heat supply system with carbon capture function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219300718U (en) |
-
2023
- 2023-02-14 CN CN202320214065.0U patent/CN219300718U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204730303U (en) | The heating system of the 12MW small cogeneration unit under a kind of underrun operating mode | |
| CN112855293B (en) | Integrated heat storage industrial steam supply cogeneration peak shaving frequency modulation system and operation method | |
| CN108035776B (en) | Thermoelectric decoupling system and operation method | |
| CN107859538B (en) | Combined heat and power generation system for condensing back heat supply and operation method thereof | |
| CN112856544B (en) | Method and system for improving flexibility of thermoelectric unit by combining exhaust gas waste heat recovery and heat storage | |
| CN107503809A (en) | Condensing turbine low pressure (LP) cylinder cools down and small turbine exhaust steam heat recovery system | |
| CN108443939B (en) | Exhaust steam waste heat recovery heating system suitable for water-cooling steam turbine unit | |
| CN213514033U (en) | Power station heating system for recovering waste heat of steam driven by absorption heat pump | |
| CN107355266B (en) | Thermoelectric system for realizing complete thermoelectric decoupling by utilizing carbon dioxide reverse circulation | |
| CN112983565A (en) | Thermal power generating unit steam extraction auxiliary frequency modulation peak regulation system based on heat storage | |
| CN113090509A (en) | Compressed air energy storage coupled thermal power generating unit deep peak shaving system and method | |
| CN219300718U (en) | Power generation and heat supply system with carbon capture function | |
| CN114233421B (en) | Thermoelectric cooperative system integrated with steam injector and operation method | |
| CN114234264B (en) | Thermoelectric cooperative system coupled with steam ejector and operation method | |
| CN206801628U (en) | Condensing turbine low pressure (LP) cylinder cools down and small turbine exhaust steam heat recovery system | |
| CN111780195B (en) | Supercritical unit improved heat supply network drainage system and working method thereof | |
| CN211781370U (en) | Solar-assisted coal-fired cogeneration system based on absorption heat pump | |
| CN110579041B (en) | Thermoelectric decoupling system based on absorption heat pump and operation method | |
| CN218627014U (en) | Supercritical steam turbine heating system | |
| CN211625410U (en) | Heating system with composite phase-change heat exchanger for recycling flue gas waste heat | |
| CN206310568U (en) | Feed pump turbine low-vacuum-operating circulating water heating system | |
| CN111485963A (en) | Energy-saving efficient low-emission steam turbine power generation device | |
| CN208703999U (en) | Indirect air cooling generating set multistage steam exhaust cascade utilization heating system | |
| CN216077238U (en) | Energy-saving steam turbine power generation device | |
| CN211575203U (en) | Low-level energy step heating and heating system using ejector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |