CN218001647U - Double-series heat supply network water four-stage heating and heat supply system - Google Patents
Double-series heat supply network water four-stage heating and heat supply system Download PDFInfo
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- CN218001647U CN218001647U CN202222076745.9U CN202222076745U CN218001647U CN 218001647 U CN218001647 U CN 218001647U CN 202222076745 U CN202222076745 U CN 202222076745U CN 218001647 U CN218001647 U CN 218001647U
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Abstract
The utility model relates to a two series heat supply network water level four heating system, relate to the field of heat supply technology, it includes the heat supply network wet return, heat supply network wet return intercommunication exhaust steam condenser unit, exhaust steam condenser unit is kept away from heat supply network wet return one end and is communicated the turbine unit, communicate the turbo machine on the turbine unit, the turbo machine is kept away from turbine unit one end and is communicated turbo machine condenser unit, the one end that the turbo machine condenser unit kept away from the turbo machine communicates high back pressure steam turbine condenser unit, high back pressure steam turbine condenser unit is kept away from turbo machine condenser unit one end and is communicated high back pressure steam turbine, high back pressure steam turbine is kept away from high back pressure steam turbine condenser unit one end and is communicated head station heat supply network heater, head station heat supply network heater keeps away from high back pressure steam turbine one end and communicates high back pressure steam turbine condenser unit, communicate the heat supply network outlet pipe on the head station heat supply network heater. The method and the device have the advantages that the adaptability of the heat supply network system after the flexible peak regulation operation mode is implemented in the thermal power plant is improved, and the normal operation of a heat supply system is guaranteed.
Description
Technical Field
The application relates to the field of heat supply technology, in particular to a water four-stage heating and heat supply system with double series heat supply networks.
Background
More and more urban residents adopt central heating in winter, and the principle is that steam of a thermal power plant or other steam power devices is utilized to heat circulating backwater of a heat supply network, and the backwater reaches a certain temperature and then is sent to a municipal heat supply network to supply heat. In order for the thermal power plant to perform the flexible peak shaving operation, the thermal power plant needs the low load operation.
In view of the above related technologies, the inventor believes that after a flexible peak regulation operation mode is implemented in a thermal power plant at the present stage, a heat supply system is difficult to adapt, even cannot operate, and needs to adjust a heat supply network system.
SUMMERY OF THE UTILITY MODEL
In order to improve the adaptability of heat supply network system behind the nimble peak regulation operation mode of implementation of thermal power factory, guarantee heating system normal operating, this application provides a two series heat supply network water level four heating system.
The application provides a pair of series heat supply network water level four heating system adopts following technical scheme:
the utility model provides a two series heat supply network water level four heating system, includes the heat supply network wet return, heat supply network wet return one end intercommunication has exhaust steam condenser unit, the one end intercommunication that the heat supply network wet return was kept away from to exhaust steam condenser unit has the turbine unit, the intercommunication has the turbo machine on the turbine unit, the one end intercommunication that the turbo machine was kept away from the turbine unit of turbo machine has turbo machine condenser unit, the one end intercommunication that turbo machine was kept away from to turbo machine condenser unit has high back pressure turbine condenser unit, the one end intercommunication that turbo machine condenser unit was kept away from to high back pressure turbine condenser unit has high back pressure turbine, the one end intercommunication that high back pressure turbine condenser unit was kept away from to high back pressure turbine has the head station heat supply network heater, the one end intercommunication that high back pressure turbine was kept away from to the head station heat supply network heater has the heat supply network outlet pipe, still the intercommunication has the heat supply network outlet pipe on the head station heat supply network heater.
By adopting the technical scheme, the return water of the heat supply network enters the four-stage heating and heat supply system of the double-series heat supply network water through the return water pipe of the heat supply network, the heating work is completed by the turbo-charger condenser unit and the high-back-pressure turbine condenser unit through the exhaust steam condenser unit, meanwhile, the return water of the heat supply network can be divided into two paths for heating work through the exhaust steam condenser unit, the adaptability of the heat supply network system after the flexible peak regulation operation mode is implemented in a thermal power plant is improved, and the normal operation of the heat supply system is ensured.
Optionally, the steam turbine set includes a first steam turbine, one end of the first steam turbine is communicated with an exhaust steam condenser set, and one end of the first steam turbine, which is far away from the exhaust steam condenser set, is communicated with a second steam turbine;
and the first turbine and the second turbine are both communicated with an air cooling system.
Through adopting above-mentioned technical scheme, set up first turbine and second turbine, can open or close first turbine and second turbine according to the demand of two series of heat supply network water four-stage heating system, when first and last cold stage heat supply or thermal power factory flexibility peak shaving, close one of them turbine, energy saving and emission reduction, first turbine and second turbine open simultaneously when the heat supply of degree of depth cold stage, guarantee the heat supply.
Optionally, the exhaust steam condenser unit comprises a first exhaust steam condenser, a second exhaust steam condenser is communicated with the first exhaust steam condenser, and the first exhaust steam condenser and the second exhaust steam condenser are connected in parallel to a heat supply network water return pipe;
and a first bypass is communicated between the first dead steam condenser and the second dead steam condenser.
Optionally, the turbine condenser unit comprises a first turbine condenser, a second turbine condenser is communicated with the first turbine condenser, and the first turbine condenser and the second turbine condenser are connected in parallel to a water return pipe of a heat supply network;
and a second bypass is communicated between the first turbine-increasing condenser and the second turbine-increasing condenser.
Optionally, the high back pressure turbine condenser unit comprises a first high back pressure turbine condenser, a second high back pressure turbine condenser is communicated with the first high back pressure turbine condenser, and the first high back pressure turbine condenser and the second high back pressure turbine condenser are connected in parallel to a heat supply network water return pipe;
and a third bypass is communicated between the first high back pressure turbine condenser and the second high back pressure turbine condenser.
Through adopting above-mentioned technical scheme, when first cold period heat supply or thermal power factory flexibility peak shaving, through control pipeline and valve, make the heat supply network return water heat through single series, energy saving and emission reduction, the heat supply network return water heats through double series when the heat supply of degree of depth cold period, improves heating efficiency, guarantees the heat supply.
Optionally, the first bypass, the second bypass, and the third bypass are all connected in series and communicated with a heat supply network water return pipe;
and valves and instruments are arranged on the first bypass, the second bypass and the third bypass.
Through adopting above-mentioned technical scheme, set up valve and instrument ware on first bypass, second bypass and third bypass, the person of facilitating the use controls and state detection first bypass, second bypass and third bypass.
Optionally, the heat supply network water return pipe, the exhaust steam condenser unit, the steam turbine unit, the steam booster condenser unit, the high back pressure steam turbine, the primary heat supply network heater and the heat supply network water outlet pipe are communicated through a plurality of pipelines;
and valves and instruments are arranged on the pipelines.
Through adopting above-mentioned technical scheme, set up the pipeline and with intercommunication between heat supply network wet return, exhaust steam condenser unit, turbine unit, increase turbine condenser unit, high back pressure turbine, head station heat supply network heater, the heat supply network outlet pipe, guarantee the circulation of heat supply network return water, set up valve and instrument ware simultaneously on the pipeline, the person of facilitating the use controls and state detection each pipeline.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the return water of the heat supply network enters a dual-series heat supply network water four-stage heating and heat supply system through a return water pipe of the heat supply network, passes through an exhaust steam condenser unit, a steam booster condenser unit and a high-back-pressure steam turbine condenser unit to finish heating work, and meanwhile, the return water of the heat supply network can be divided into two paths to carry out heating work by arranging the exhaust steam condenser unit, the steam booster condenser unit and the high-back-pressure steam turbine condenser unit, so that the adaptability of the heat supply network system after a flexible peak regulation operation mode of a thermal power plant is improved, and the normal operation of the heat supply system is ensured;
2. the first steam turbine and the second steam turbine are arranged, the first steam turbine and the second steam turbine can be opened or closed according to the requirements of a water four-stage heating and heat supply system of the double-series heat supply network, one steam turbine is closed when heat supply is carried out in the initial and final cold periods or the flexibility peak shaving of a thermal power plant is carried out, energy is saved, emission is reduced, the first steam turbine and the second steam turbine are simultaneously opened when heat supply is carried out in the deep cold period, and heat supply is guaranteed;
3. when the heat supply of first and last cold stage or the flexibility peak shaving of thermal power factory, through control pipeline and valve, make the heat supply network return water heat through single series, energy saving and emission reduction, the heat supply network return water heats through double series when the heat supply of degree of depth cold stage, improves heating efficiency, guarantees the heat supply.
Drawings
Fig. 1 is a schematic diagram of an embodiment of the present application.
Description of reference numerals: 1. a heat supply network water return pipe; 2. an exhaust steam condenser unit; 21. a first dead steam condenser; 22. a second exhaust steam condenser; 23. a first bypass; 3. a steam turbine unit; 31. a first turbine; 32. a second turbine; 33. an air cooling system; 4. a steam increasing machine; 5. a turbine-increasing condenser unit; 51. a first turbine condenser; 52. a second turbine condenser; 53. a second bypass; 6. a high back pressure turbine condenser unit; 61. a first high back pressure turbine condenser; 62. a second high back pressure turbine condenser; 63. a third bypass; 7. a high back pressure turbine; 8. a first station heat supply network heater; 9. and (4) a water outlet pipe of the heat supply network.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses two series heat supply network water level four heating system.
Referring to fig. 1, the dual-series heat supply network water four-stage heating and heat supply system comprises a heat supply network water return pipe 1, and an exhaust steam condenser unit 2, a steam booster condenser unit 5, a high back pressure steam turbine condenser unit 6 and a first station heat supply network heater 8 are sequentially connected to the heat supply network water return pipe 1 in series. The booster condenser unit 5 is communicated with a booster 4, and the high back pressure turbine condenser unit 6 is communicated with a high back pressure turbine 7. The exhaust steam condenser unit 2, the steam booster 4, the high back pressure steam turbine 7 and the first station heat supply network heater 8 are all communicated with the steam turbine unit 3. The first station heat supply network heater 8 is also communicated with a heat supply network water outlet pipe 9.
The steam turbine set 3 comprises a first steam turbine 31, one end of the first steam turbine 31 is communicated with a second steam turbine 32 through a pipeline, the first steam turbine 31 and the second steam turbine 32 are both communicated with an air cooling system 33 through pipelines, and the air cooling system 33 is an air cooling island device or an air cooling tower device. The first steam turbine 31 is also communicated with an exhaust steam condenser unit 2 through a pipeline, the exhaust steam condenser unit 2 comprises a first exhaust steam condenser 21, a first bypass 23 is communicated between the first exhaust steam condenser 21 and the second exhaust steam condenser 22, and the first exhaust steam condenser 21 and the second exhaust steam condenser 22 are connected on the heat supply network water return pipe 1 in parallel.
The heat supply network return pipe 1 is also connected in parallel with a first turbo charger condenser 51 and a second turbo charger condenser 52, a second bypass 53 is communicated between the first turbo charger condenser 51 and the second turbo charger condenser 52, and both the first turbo charger condenser 51 and the second turbo charger condenser 52 are communicated with the turbo charger 4.
Still parallelly connected on the heat supply network wet return 1 has first high back pressure steam turbine condenser 61 and second high back pressure steam turbine condenser 62, and it has third bypass 63 to communicate between first high back pressure steam turbine condenser 61 and the second high back pressure steam turbine condenser 62, and first high back pressure steam turbine condenser 61 and second high back pressure steam turbine condenser 62 all communicate with high back pressure steam turbine 7.
The implementation principle of the water four-stage heating and heat supply system of the double-series heat supply network in the embodiment of the application is as follows: when heat supply is carried out in the initial and final cold periods or the flexibility peak shaving of a thermal power plant is carried out, the single-series operation of the double-series heat supply network water four-stage heating and heat supply system is carried out, pipelines communicated with the second exhaust steam condenser 22, the second steam booster condenser 52 and the second high back pressure steam turbine condenser 62 are closed through valves, return water of the heat supply network flows into the double-series heat supply network water four-stage heating and heat supply system through the return water pipe 1 of the heat supply network, the return water of the heat supply network flows into the first steam booster condenser 51 after flowing through the first exhaust steam condenser 21 through the pipeline, then flows into the first high back pressure steam turbine condenser 61 through the pipeline, the return water of the heat supply network is heated to the required temperature through the first high back pressure steam turbine condenser 61 and then flows into the first heat supply network heater 8, finally flows into the water outlet pipe 9 of the heat supply network through the first heat supply network heater 8, the heating work of the heat supply network is completed, the adaptability of the heat supply network water heating work after the flexible peak shaving operation mode of the thermal power plant is improved, and the normal operation of the heat supply system is ensured.
When heat is supplied in a deep cold period, the double-series operation is carried out, valves of pipelines of the double-series heat supply network water four-level heating and heat supplying system are all in an open state, return water of the heat supply network flows into the double-series heat supply network water four-level heating and heat supplying system through a return water pipe 1 of the heat supply network, then the return water of the heat supply network is distributed into two paths, the two paths of heat supply network water can be in an uneven distribution mode or an even distribution mode, one path of the two paths of return water of the heat supply network flows through a first steam exhaust condenser 21, a first steam booster condenser 51 and a first high back pressure steam turbine condenser 61 and then flows into a first station heat supply network heater 8, the other path of the two paths of return water of the heat supply network flows through a pipeline and then flows through a second steam exhaust condenser 22, a second steam booster condenser 52 and a second high back pressure steam turbine condenser 62 and then flows into a first station heat supply network heater 8, the two paths of return water flow into a heat supply network water outlet pipe 9 after being combined, the heating work of the heat supply network water of the double-series heat supplying system is completed, the double-series heat supply network water four-heating and the double-series operation of the double-series heat supply network water heating and heat supplying system is carried out, the heating efficiency of the double-heating and the double-series heat supply network is improved, and the stability of the city heat supply network is guaranteed.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. The utility model provides a two series heat supply network water level four heating system which characterized in that: including heat supply network wet return (1), heat supply network wet return (1) one end intercommunication has exhaust steam condenser unit (2), the one end intercommunication that heat supply network wet return (1) was kept away from in exhaust steam condenser unit (2) has turbine unit (3), the intercommunication has turbo machine (4) on turbine unit (3), the one end intercommunication that turbo machine (3) were kept away from in turbo machine (4) has turbo machine condenser unit (5), the one end intercommunication that turbo machine (4) were kept away from in turbo machine condenser unit (5) has high back pressure turbine condenser unit (6), the one end intercommunication that turbo machine condenser unit (5) were kept away from in high back pressure turbine condenser unit (6) has high back pressure turbine (7), the one end intercommunication that high back pressure turbine condenser unit (6) were kept away from in high back pressure turbine (7) of high back pressure turbine (7) has head station heat supply network heater (8), the one end intercommunication that high back pressure turbine (7) were kept away from in head station heat supply network heater (8) has high back pressure turbine (6), heat supply network heater (8) still has outlet pipe on the head station.
2. The dual series heat network water four-stage heating system of claim 1, wherein: the steam turbine set (3) comprises a first steam turbine (31), one end of the first steam turbine (31) is communicated with the exhaust steam condenser set (2), and one end, far away from the exhaust steam condenser set (2), of the first steam turbine (31) is communicated with a second steam turbine (32);
and the first turbine (31) and the second turbine (32) are communicated with an air cooling system (33).
3. The dual series heat network water four-stage heating and heating system of claim 1, wherein: the exhaust steam condenser unit (2) comprises a first exhaust steam condenser (21), a second exhaust steam condenser (22) is communicated with the first exhaust steam condenser (21), and the first exhaust steam condenser (21) and the second exhaust steam condenser (22) are connected to a heat supply network water return pipe (1) in parallel;
and a first bypass (23) is communicated between the first dead steam condenser (21) and the second dead steam condenser (22).
4. The dual series heat network water four-stage heating and heating system of claim 3, wherein: the steam turbine condenser unit (5) comprises a first steam turbine condenser (51), a second steam turbine condenser (52) is communicated with the first steam turbine condenser (51), and the first steam turbine condenser (51) and the second steam turbine condenser (52) are connected to a heat supply network water return pipe (1) in parallel;
and a second bypass (53) is communicated between the first turbo charger condenser (51) and the second turbo charger condenser (52).
5. The dual series heat network water four-stage heating and heating system of claim 4, wherein: the high-back-pressure turbine condenser unit (6) comprises a first high-back-pressure turbine condenser (61), a second high-back-pressure turbine condenser (62) is communicated with the first high-back-pressure turbine condenser (61), and the first high-back-pressure turbine condenser (61) and the second high-back-pressure turbine condenser (62) are connected to a heat supply network water return pipe (1) in parallel;
and a third bypass (63) is communicated between the first high back pressure turbine condenser (61) and the second high back pressure turbine condenser (62).
6. The dual series heat network water four-stage heating system of claim 5, wherein: the first bypass (23), the second bypass (53) and the third bypass (63) are all communicated on the heat supply network water return pipe (1) in series;
the first bypass (23), the second bypass (53) and the third bypass (63) are provided with valves and instruments.
7. The dual series heat network water four-stage heating and heating system of claim 1, wherein: the heat supply network water return pipe (1), the exhaust steam condenser unit (2), the steam turbine unit (3), the steam booster condenser unit (5), the high back pressure steam turbine condenser unit (6),
The high back pressure steam turbine (7), the initial station heat supply network heater (8) and the heat supply network water outlet pipe (9) are communicated through a plurality of pipelines;
and a plurality of pipelines are provided with valves and instruments.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222076745.9U CN218001647U (en) | 2022-08-08 | 2022-08-08 | Double-series heat supply network water four-stage heating and heat supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222076745.9U CN218001647U (en) | 2022-08-08 | 2022-08-08 | Double-series heat supply network water four-stage heating and heat supply system |
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| CN218001647U true CN218001647U (en) | 2022-12-09 |
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| CN202222076745.9U Active CN218001647U (en) | 2022-08-08 | 2022-08-08 | Double-series heat supply network water four-stage heating and heat supply system |
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- 2022-08-08 CN CN202222076745.9U patent/CN218001647U/en active Active
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