CN214035884U - Gas turbine exhaust waste heat utilization system - Google Patents
Gas turbine exhaust waste heat utilization system Download PDFInfo
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- CN214035884U CN214035884U CN202023213964.4U CN202023213964U CN214035884U CN 214035884 U CN214035884 U CN 214035884U CN 202023213964 U CN202023213964 U CN 202023213964U CN 214035884 U CN214035884 U CN 214035884U
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- heating pipeline
- pressure
- waste heat
- gas turbine
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Abstract
The utility model relates to a gas turbine technical field, concretely relates to gas turbine exhaust-heat utilization system, it includes exhaust-heat boiler, exhaust-heat boiler one end is equipped with the air inlet, and the other end is equipped with the gas outlet, exhaust-heat boiler's inside is equipped with high-pressure section heating pipeline, low-pressure section heating pipeline, one side that is close to the air inlet is located to high-pressure section heating pipeline, one side that is close to the gas outlet is located to low-pressure section heating pipeline, be equipped with high pressure feed water heater between the high-pressure section heating pipeline both ends, be equipped with low pressure feed water heater between the low-pressure section heating pipeline, one side of low pressure feed water heater is connected with the oxygen-eliminating device, one side of oxygen-eliminating device is connected with the water-feeding pump. The utility model has the advantages that: the structure design is reasonable, and the exhaust waste heat of the gas turbine can be conveniently, flexibly and effectively utilized.
Description
Technical Field
The utility model relates to a gas turbine technical field especially relates to a gas turbine residual heat utilization system that discharges fume.
Background
The waste heat boiler is generally adopted in the gas-steam combined cycle thermal power plant to absorb the exhaust heat of the gas turbine, and the generated steam drives the small steam turbine to generate electricity, so that on one hand, the efficiency of the waste heat boiler is low, generally about 84%, the utilization efficiency of the exhaust heat of the gas turbine is low, on the other hand, the efficiency of the small steam turbine is also relatively low, and the loss of a cold end is large, so that the efficiency of the whole gas-steam combined cycle lower power station is low, and the economy is not high.
Compared with the prior art, the steam turbine of the coal-fired unit has higher efficiency, so that the utilization rate of the exhaust energy of the gas turbine can be further improved by utilizing the exhaust heat of the gas turbine in the thermodynamic cycle of the coal-fired unit, and the effect of saving energy is achieved.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming the defects of the prior art, an object of the utility model is to provide a gas turbine exhaust gas waste heat utilization system, it can be convenient, nimble and effectively utilize gas turbine exhaust gas waste heat.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a gas turbine exhaust-heat utilization system, includes exhaust-heat boiler, exhaust-heat boiler one end is equipped with the air inlet, and the other end is equipped with the gas outlet, exhaust-heat boiler's inside is equipped with high-pressure section heating pipeline, low-pressure section heating pipeline, high-pressure section heating pipeline locates the one side that is close to the air inlet, one side that is close to the gas outlet is located to low-pressure section heating pipeline, be equipped with high pressure heater between the high-pressure section heating pipeline both ends, be equipped with low pressure heater between the low-pressure section heating pipeline, one side of low pressure heater is connected with the oxygen-eliminating device, one side of oxygen-eliminating device is connected with the feed pump, the other end and the high pressure heater of feed pump are connected, high pressure heater's opposite side is connected with coal fired boiler.
Furthermore, a steam turbine extraction high-pressure heating pipeline is connected to the high-pressure heater, and the other side of the steam turbine extraction high-pressure heating pipeline is connected with a steam turbine.
Furthermore, a steam turbine extraction low-pressure heating pipeline is connected to the low-pressure heater, and the other side of the steam turbine extraction low-pressure heating pipeline is also connected with the steam turbine.
Further, the coal-fired boiler is connected to a steam turbine.
Furthermore, a condenser is connected to the steam turbine, and the other side of the condenser is connected with a low-pressure heater.
Further, one end of the steam turbine is connected with a generator.
To sum up, the utility model discloses following beneficial effect has:
the steam exhausted by the steam turbine is condensed into water through the condenser, the waste heat boiler is used for storing residual smoke, the waste heat of the exhaust smoke of the gas turbine is used for heating the front part of the feed water of the low-pressure heater and the front part of the feed water of the high-pressure heater respectively, the waste heat of the exhaust smoke of the gas turbine is efficiently utilized, the whole waste heat utilization system is simple and reasonable in structure, the waste heat is efficiently utilized, and resources required by heating are saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, do not constitute a limitation of the invention, and in which:
fig. 1 is a connection structure diagram of the present invention.
In the figure, 1, a waste heat boiler; 2. an air inlet; 3. an air outlet; 4. a high pressure section heating pipeline; 5. a low pressure section heating line; 6. a high pressure heater; 7. a low pressure heater; 8. a deaerator; 9. a feed pump; 10. a coal-fired boiler; 11. a steam extraction high-pressure heating pipeline of the steam turbine; 12. a steam extraction low-pressure heating pipeline of the steam turbine; 13. a condenser; 14. a generator; 15. a steam turbine.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
Example 1: a gas turbine exhaust waste heat utilization system, as shown in figure 1, comprises a waste heat boiler 1, wherein one end of the waste heat boiler 1 is provided with an air inlet 2, the other end of the waste heat boiler 1 is provided with an air outlet 3, and exhaust gas of a gas turbine enters the waste heat boiler 1 from the air inlet 2 and finally flows out from the air outlet 3.
As shown in fig. 1, a high-pressure section heating pipeline 4 and a low-pressure section heating pipeline 5 are arranged inside the waste heat boiler 1, the high-pressure section heating pipeline 4 is arranged on one side close to the air inlet 2, the low-pressure section heating pipeline 5 is arranged on one side close to the air outlet 3, a high-pressure heater 6 is arranged between two ends of the high-pressure section heating pipeline 4, and a low-pressure heater 7 is arranged between the low-pressure section heating pipelines 5.
As shown in fig. 1, one side of the low-pressure heater 7 is connected with a deaerator 8, one side of the deaerator 8 is connected with a water feed pump 9, the other end of the water feed pump 9 is connected with the high-pressure heater 6, the other side of the high-pressure heater 6 is connected with a coal-fired boiler 10, the coal-fired boiler 10 is connected with a steam turbine 15, and one end of the steam turbine 15 is connected with a generator 14.
As shown in fig. 1, the steam turbine 15 is further connected to a condenser 13, and the other side of the condenser 13 is connected to the low-pressure heater 7.
As shown in fig. 1, a turbine extraction low-pressure heating pipeline 12 is further connected to the low-pressure heater 7, and the other side of the turbine extraction low-pressure heating pipeline 12 is connected to a turbine 15.
As shown in fig. 1, the high-pressure heater 6 is further connected to a turbine extraction high-pressure heating pipeline 11, and the other side of the turbine extraction high-pressure heating pipeline 11 is also connected to a turbine 15.
In the embodiment of the utility model, the condenser 13 condenses the steam discharged by the steam turbine 15 into water, so that part of the low-temperature feed water flows away from the low-pressure section heating pipeline 5 at the waste heat boiler 1 and enters the low-pressure heater 7 at the waste heat boiler 1, the low-temperature feed water is heated by the exhaust heat at the lower temperature of the gas turbine, and the heated feed water and the feed water heated by the low-pressure heater 7 enter the deaerator 8 together; part of the feed water passing through the feed water pump 9 enters a high-pressure heater 6 at the waste heat boiler 1 through a high-pressure section heating pipeline 4 at the waste heat boiler 1, the high-temperature feed water is heated by utilizing the exhaust smoke waste heat with higher temperature of the gas turbine, and the heated feed water and the feed water heated by the high-pressure heater 6 enter a coal-fired boiler 10 together.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (6)
1. The utility model provides a gas turbine exhaust gas waste heat utilization system, includes exhaust-heat boiler (1), its characterized in that: one end of the waste heat boiler (1) is provided with an air inlet (2), the other end is provided with an air outlet (3), a high-pressure section heating pipeline (4) and a low-pressure section heating pipeline (5) are arranged in the waste heat boiler (1), the high-pressure section heating pipeline (4) is arranged at one side close to the air inlet (2), the low-pressure section heating pipeline (5) is arranged at one side close to the air outlet (3), a high-pressure heater (6) is arranged between the two ends of the high-pressure section heating pipeline (4), a low-pressure heater (7) is arranged between the low-pressure section heating pipelines (5), one side of the low-pressure heater (7) is connected with a deaerator (8), one side of the deaerator (8) is connected with a water feeding pump (9), the other end of the water feeding pump (9) is connected with a high-pressure heater (6), and the other side of the high-pressure heater (6) is connected with a coal-fired boiler (10).
2. The exhaust gas waste heat utilization system of the gas turbine as claimed in claim 1, wherein: the high-pressure heater (6) is also connected with a steam turbine extraction high-pressure heating pipeline (11), and the other side of the steam turbine extraction high-pressure heating pipeline (11) is connected with a steam turbine (15).
3. The exhaust gas waste heat utilization system of the gas turbine as claimed in claim 2, wherein: the low-pressure heater (7) is also connected with a steam turbine extraction low-pressure heating pipeline (12), and the other side of the steam turbine extraction low-pressure heating pipeline (12) is also connected with a steam turbine (15).
4. The exhaust gas waste heat utilization system of the gas turbine as claimed in claim 3, wherein: the coal-fired boiler (10) is connected to a steam turbine (15).
5. The gas turbine exhaust smoke waste heat utilization system according to claim 4, characterized in that: and the steam turbine (15) is also connected with a condenser (13), and the other side of the condenser (13) is connected with the low-pressure heater (7).
6. The exhaust gas waste heat utilization system of the gas turbine as claimed in claim 5, wherein: one end of the steam turbine (15) is connected with a generator (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023213964.4U CN214035884U (en) | 2020-12-28 | 2020-12-28 | Gas turbine exhaust waste heat utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023213964.4U CN214035884U (en) | 2020-12-28 | 2020-12-28 | Gas turbine exhaust waste heat utilization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214035884U true CN214035884U (en) | 2021-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023213964.4U Expired - Fee Related CN214035884U (en) | 2020-12-28 | 2020-12-28 | Gas turbine exhaust waste heat utilization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214035884U (en) |
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2020
- 2020-12-28 CN CN202023213964.4U patent/CN214035884U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211227 Address after: 214000 No. 9, Yu'an 1st Road, Shuofang New District, Wuxi City, Jiangsu Province Patentee after: WUXI AILITE ENGINEERING EQUIPMENT Co.,Ltd. Address before: 214000 No.1 qianou Road, Wuxi City, Jiangsu Province Patentee before: JIANGSU VOCATIONAL College OF INFORMATION TECHNOLOGY |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210824 Termination date: 20211228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |