CN211011382U - Waste incineration power generation bypass recovery system - Google Patents
Waste incineration power generation bypass recovery system Download PDFInfo
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- CN211011382U CN211011382U CN201922111154.9U CN201922111154U CN211011382U CN 211011382 U CN211011382 U CN 211011382U CN 201922111154 U CN201922111154 U CN 201922111154U CN 211011382 U CN211011382 U CN 211011382U
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Abstract
The utility model discloses a waste incineration power generation bypass recovery system, burn waste heat stove, No. two including a burn waste heat stove, steam turbine, first bypass recovery pipeline and second bypass recovery pipeline. The utility model discloses a dispose independent 100% capacity's bypass system on every waste heat stove that burns, set up steam exhaust valve and relief valve in burning waste heat stove export, realized bypass recovery system's start-up function, shut down and not shut down the stove function and take the station service power operation function, the effectual steam turbine that has realized has guaranteed the fail safe nature of equipment to the variable load adaptability who burns waste heat stove, has improved the operational reliability who burns generating set, has extensive popularization and application prospect.
Description
Technical Field
The utility model belongs to msw incineration power generation field, concretely relates to msw incineration power generation bypass recovery system.
Background
Compared with the coal-fired power plant, the waste incineration power generation and the coal-fired power plant have the biggest characteristic that the components and the characteristics of the fuel are obviously different, so that new requirements are provided for equipment and a thermodynamic system. The stokehold components and the calorific value of the waste fuel have randomness, and the waste incineration power plant is limited by feeding equipment, combustion conditions and control level, so that the quality and the calorific value of the stokehold waste are difficult to be fully adjusted to ensure the stability of the total calorific value of the stokehold waste.
Unlike conventional coal-fired power plants, the primary function of a waste-burning power plant is waste disposal, which is usually to allow the waste-burning power plant to be fully operational and to be able to operate without shutting down the plant. Because of the characteristics of the waste incineration power plant, the fluctuation of the operation parameters of the power plant is determined not to be generated in response to the load of a power grid but to be caused by the uncertainty of the characteristics of the waste fuel, so that in the waste incineration power plant, the stability and the safety of the operation of the system are ensured, the economy of the operation of the unit is improved, and therefore, the reasonably designed waste incineration power generation bypass recovery system is particularly important.
SUMMERY OF THE UTILITY MODEL
To the needs of the above waste incineration power plant: realize bypass recovery system's start-up function, shut down and do not shut down stove function and take service operation function, improve the reliability of rubbish generating set operation, the utility model aims at providing a waste incineration power generation bypass recovery system.
The purpose of the utility model is realized through the following technical scheme.
A waste incineration power generation bypass recovery system comprises a first incineration waste heat furnace, a second incineration waste heat furnace and a steam turbine, wherein the first incineration waste heat furnace and the second incineration waste heat furnace are communicated with a collecting main pipe through pipelines, the collecting main pipe is communicated with an inlet of the steam turbine, a fifth isolating valve is arranged on the collecting main pipe, an exhaust outlet of the steam turbine is respectively communicated with a water inlet of the first incineration waste heat furnace and the second incineration waste heat furnace through a steam-water circulation pipeline, a condenser, a condensate pump, a condensate heating mechanism, a deaerator and a boiler feed pump are sequentially arranged on the steam-water circulation pipeline along a condensate flowing direction, the waste incineration waste heat furnace bypass recovery system further comprises a first bypass recovery pipeline and a second bypass recovery pipeline, one end of the first bypass recovery pipeline is connected to the communicating pipeline between the first incineration waste heat furnace and the collecting main pipe in a bypassing manner, the other end of the first bypass recovery pipeline is connected to the condenser, and a first temperature and pressure reducing valve is arranged on, a first isolation valve is arranged on a communicating pipe between a bypass point of the first bypass recovery pipeline and the first incineration waste heat furnace, and a second isolation valve is arranged on a communicating pipe between the bypass point of the first bypass recovery pipeline and the collection main pipe; one end of the second bypass recovery pipeline is connected to a communicating pipeline between the second incineration waste heat furnace and the collecting main pipe in a bypassing mode, the other end of the second bypass recovery pipeline is connected to the condenser, a second temperature and pressure reducing valve is arranged on the second bypass recovery pipeline, a third isolating valve is arranged on a communicating pipeline between a bypass point of the second bypass recovery pipeline and the second incineration waste heat furnace, and a fourth isolating valve is arranged on a communicating pipeline between the bypass point of the second bypass recovery pipeline and the collecting main pipe.
The first pipeline is connected to the collecting main pipe in a side-by-side mode, one end of the first pipeline is communicated with the collecting main pipe, the other end of the first pipeline is communicated with the deaerator, a side-by-side connection point of the first pipeline and the collecting main pipe is located on the collecting main pipe between the fifth isolation valve and the second isolation valve or between the fifth isolation valve and the fourth isolation valve, and a third temperature and pressure reducing valve is arranged on the first pipeline.
Still include a high-pressure air preheater and No. two high-pressure air preheaters, the steam inlet of a high-pressure air preheater and the steam drum steam outlet intercommunication of a burning waste heat stove, the hydrophobic export and the oxygen-eliminating device intercommunication of a high-pressure air preheater, the air outlet of a high-pressure air preheater and the air inlet intercommunication of a burning waste heat stove, the steam inlet of No. two high-pressure air preheaters and the steam drum steam outlet intercommunication of No. two burning waste heat stoves, the hydrophobic export and the oxygen-eliminating device intercommunication of No. two high-pressure air preheaters, the air outlet of No. two high-pressure air preheaters and the air inlet intercommunication of No. two burning waste heat stoves.
Still include a low pressure air preheater and No. two low pressure air preheaters, the steam inlet of a low pressure air preheater and No. two low pressure air preheaters all communicate with the steam outlet of steam turbine, the hydrophobic export of a low pressure air preheater and No. two low pressure air preheaters all communicates with the oxygen-eliminating device, the air outlet of a low pressure air preheater and No. two low pressure air preheaters communicates with the air inlet of a waste heat furnace and No. two waste heat furnaces of burning respectively.
And a second pipeline respectively communicated with inlets of the first low-pressure air preheater and the second low-pressure air preheater is further connected to the first pipeline communicated with the deaerator in a bypassing manner.
The condensed water heating structure comprises a steam seal heater and a low-pressure heater which are sequentially arranged along the flowing direction of the condensed water.
The inlet of the low-pressure heater is also communicated with the steam outlet of the steam turbine.
A safety valve and a steam exhaust valve are sequentially arranged between the first incineration waste heat furnace and the first isolation valve, and a second safety valve and a second steam exhaust valve are sequentially arranged between the second incineration waste heat furnace and the third isolation valve.
The opening pressure of the first steam exhaust valve is lower than that of the first safety valve, and the opening pressure of the second steam exhaust valve is lower than that of the second safety valve.
The first isolation valve, the second isolation valve, the third isolation valve, the fourth isolation valve and the fifth isolation valve are all electric isolation valves.
The utility model has the advantages that: the utility model provides a waste incineration power generation bypass recovery system can extensively be used for newly building waste incineration power generation project bypass system's optimal design, and is applicable to steam turbines such as biomass power generation, blast furnace gas waste heat power generation equally and follows waste heat boiler's project. The utility model discloses a dispose independent 100% capacity's bypass system on every waste heat stove that burns, set up steam exhaust valve and relief valve in burning waste heat stove export, realized bypass recovery system's start-up function, shut down and not shut down the stove function and take the station service power operation function, the effectual steam turbine that has realized has guaranteed the fail safe nature of equipment to the variable load adaptability who burns waste heat stove, has improved the operational reliability who burns generating set, has extensive popularization and application prospect.
Drawings
Fig. 1 is the schematic structural diagram of the waste incineration power generation bypass recovery system of the utility model.
In the drawing, 10 is a first waste heat incineration furnace, 11 is a first bypass recovery line, 12 is a first temperature and pressure reducing valve, 13 is a first isolation valve, 14 is a second isolation valve, 15 is a first high-pressure air preheater, 16 is a first low-pressure air preheater, 17 is a safety valve, 18 is a first steam exhaust valve, 20 is a second waste heat incineration furnace, 21 is a second bypass recovery line, 22 is a second temperature and pressure reducing valve, 23 is a third isolation valve, 24 is a fourth isolation valve, 25 is a second high-pressure air preheater, 26 is a second low-pressure air preheater, 27 is a second safety valve, 28 is a second steam exhaust valve, 30 is a steam turbine, 31 is a collection header, 32 is a fifth isolation valve, 33 is a condenser, 34 is a condensate pump, 35 is a steam seal heater, 36 is a low-pressure heater, 37 is a deaerator, 38 is a boiler feed pump, 39 is a first line, 310 is a third temperature and pressure reducing valve, 311 is a second line.
Detailed Description
As shown in fig. 1, the waste incineration power generation bypass recovery system can be widely applied to the optimization design of a newly-built waste incineration power generation project bypass system, and is also applicable to projects of a steam turbine following a waste heat boiler, such as biomass power generation and blast furnace gas waste heat power generation. Waste incineration power generation bypass recovery system includes that a burns waste heat stove 10, No. two burns waste heat stove 20 and steam turbine 30, the steam outlet of a burn waste heat stove 10 and No. two burn waste heat stove 20 all through the pipeline with collect female pipe 31 intercommunication, collect the steam inlet intercommunication of female pipe 31 and steam turbine 30, be provided with fifth isolating valve 32 on collecting female pipe 31, when shutting off fifth isolating valve 32, a burn waste heat stove 10 and No. two burn waste heat stove 20 and can not transport steam again in the steam turbine 30.
An exhaust outlet of the steam turbine 30 is respectively communicated with water inlets of the first incineration waste heat furnace 10 and the second incineration waste heat furnace 20 through a steam-water circulation pipeline, a condenser 33, a condensate pump 34, a condensate heating mechanism, a deaerator 37 and a boiler water feed pump 38 are sequentially arranged on the steam-water circulation pipeline along the direction of circulation of condensate, and exhaust steam of the steam turbine 30 is condensed into water through the condenser 33 and then is communicated with the water inlets of the first incineration waste heat furnace 10 and the second incineration waste heat furnace 20 through the condensate pump 34, the condensate heating mechanism, the deaerator 37 and the boiler water feed pump 38; further, the waste incineration power generation bypass recovery system also comprises a first bypass recovery pipeline 11 and a second bypass recovery pipeline 21, one end of the first bypass recovery pipeline 11 is connected to a communication pipeline between the first incineration waste heat furnace 10 and the collection main pipe 31 in a bypassing manner, the other end of the first bypass recovery pipeline is connected to a condenser 33, a first temperature and pressure reducing valve 12 is arranged on the first bypass recovery pipeline 11, a first isolation valve 13 is arranged on a communication pipeline between a bypass point of the first bypass recovery pipeline 11 and the first incineration waste heat furnace 10, and a second isolation valve 14 is arranged on a communication pipeline between the bypass point of the first bypass recovery pipeline 11 and the collection main pipe 31; one end of a second bypass recovery pipeline 21 is connected to a communication pipeline between the second incineration waste heat furnace 20 and the collection main pipe 31 in a bypassing manner, the other end of the second bypass recovery pipeline is connected to a condenser 33, a second temperature and pressure reducing valve 22 is arranged on the second bypass recovery pipeline 21, a third isolation valve 23 is arranged on a communication pipeline between a bypass point of the second bypass recovery pipeline 21 and the second incineration waste heat furnace 20, and a fourth isolation valve 24 is arranged on a communication pipeline between the bypass point of the second bypass recovery pipeline 21 and the collection main pipe 31. The first isolation valve 13, the second isolation valve 14, the third isolation valve 23, the fourth isolation valve 24, and the fifth isolation valve 32 are all preferably electrically operated isolation valves.
The condensed water heating structure comprises a steam seal heater 35 and a low-pressure heater 36 which are sequentially arranged along the flow direction of the condensed water, the inlet of the low-pressure heater 36 is also communicated with the steam outlet of the steam turbine 30, and the heating steam of the low-pressure heater 36 adopts three-section steam extraction of the steam turbine 30.
The first isolation valve 13 and the third isolation valve 23 are arranged at the outlets of the first incineration waste heat furnace 10 and the second incineration waste heat furnace 20, the second isolation valve 14 and the fourth isolation valve 24 are arranged in front of the collecting main pipe 31, when the boiler breaks down, the second isolation valve 14 or the fourth isolation valve 24 in front of the collecting main pipe 31 can be closed, the first temperature and pressure reducing valve 12 or the second temperature and pressure reducing valve 22 is opened, and water vapor working media are recovered and the boiler is protected; if the first temperature and pressure reducing valve 12 or the second temperature and pressure reducing valve 22 has a fault, the first isolation valve 13 and the third isolation valve 23 can be closed, a first steam exhaust valve 18, a second steam exhaust valve 28, a first safety valve 17 and a second safety valve 27 which are described below are started, redundant steam in the accident boiler is discharged, independence of a bypass system when a single waste heat incineration furnace has a fault is realized, and reliability of unit operation is improved.
Further, a first pipeline 39 is connected to the collecting main pipe 31 in a bypassing manner, one end of the first pipeline 39 is communicated with the collecting main pipe 31, the other end of the first pipeline 39 is communicated with the deaerator 37, a bypassing point of the first pipeline 39 and the collecting main pipe 31 is located on the collecting main pipe 31 between the fifth isolation valve 32 and the second isolation valve 14 or the fourth isolation valve 24, and a third temperature and pressure reducing valve 310 is arranged on the first pipeline 39. A second pipeline 311 which is respectively communicated with the steam inlets of the first low-pressure air preheater 16 and the second low-pressure air preheater 26 is further arranged on the first pipeline 39 through which the third temperature and pressure reducing valve 310 is communicated with the deaerator 37, and the second pipeline 311 is communicated with the steam inlets of the first low-pressure air preheater 16 and the second low-pressure air preheater 26 and used for improving qualified steam for the first low-pressure air preheater 16 and the second low-pressure air preheater 26. And a third temperature and pressure reducing valve 310 is arranged on the first pipeline 39, so that qualified steam is supplied to the deaerator 37, the first low-pressure air preheater 16 and the second low-pressure air preheater 26 under all accident conditions, and the safety and the reliability of the operation of the generator set are improved.
The waste incineration power generation bypass recovery system further comprises a first high-pressure air preheater 15 and a second high-pressure air preheater 25, wherein a steam inlet of the first high-pressure air preheater 15 is communicated with a steam drum steam outlet of the first incineration waste heat furnace 10, a drain outlet of the first high-pressure air preheater 15 is communicated with a deaerator 37, and an air outlet of the first high-pressure air preheater 15 is communicated with an air inlet of the first incineration waste heat furnace 10 and used for providing hot air for the first incineration waste heat furnace 10; the steam inlet of No. two high-pressure air preheater 25 and the steam drum steam outlet intercommunication of No. two waste heat stove 20 of burning, the hydrophobic import and the oxygen-eliminating device 37 intercommunication of No. two high-pressure air preheater 25, the air outlet of No. two high-pressure air preheater 25 and the air inlet intercommunication of No. two waste heat stove 20 of burning for provide the hot air for No. two waste heat stove 20 of burning. The first high-pressure air preheater 15 and the second high-pressure air preheater 25 are respectively used for heating air entering the high-pressure air preheaters, the heated air is discharged into an incineration waste heat furnace and is used for supporting combustion of fuel, and drain water enters the deaerator 37 to form a boiler steam heat regeneration system so as to ensure the normal operation of the deaerator 37.
This waste incineration power generation bypass recovery system still includes low pressure air preheater 16 and No. two low pressure air preheaters 26, the steam inlet of low pressure air preheater 16 and No. two low pressure air preheaters 26 all communicate with the steam outlet of steam turbine 30, one section extraction steam of steam turbine 30 is all adopted to low pressure air preheater 16 and No. two low pressure air preheaters 26, the hydrophobic export of low pressure air preheater 16 and No. two low pressure air preheaters 26 all communicates with oxygen-eliminating device 37, arrange hydrophobic into in oxygen-eliminating device 37, the air outlet of low pressure air preheater 16 and No. two low pressure air preheaters 26 communicates with the air inlet of a burning waste heat stove 10 and No. two burning waste heat stoves 20 respectively for burn waste heat stove and provide hot air. The first low-pressure air preheater 16 and the second low-pressure air preheater 26 are respectively used for heating air entering the low-pressure air preheater, the heated air is discharged into an incineration waste heat furnace and used for supporting combustion of fuel, and drained water enters the deaerator 37 to form a boiler steam heat recovery system so as to ensure the normal operation of the deaerator 37.
Further, a first safety valve 17 and a first steam exhaust valve 18 are sequentially arranged between the first incineration waste heat furnace 10 and the first isolation valve 13, and the opening pressure of the first steam exhaust valve 18 is lower than that of the first safety valve 17; a second safety valve 27 and a second steam exhaust valve 28 are sequentially arranged between the second incineration waste heat furnace 20 and the third isolation valve 23, and the opening pressure of the second steam exhaust valve 28 is lower than that of the second safety valve 27. The opening pressure of the steam exhaust valve is lower than that of the safety valve, when the boiler overheating steam pressure is over-pressure, the steam exhaust valve is started to open and release pressure firstly to avoid the action of the safety valve, if the boiler overheating steam pressure is over-pressure, the opening pressure of the safety valve is reached, the safety valve acts, the generator set enters an accident working condition, and in order to ensure the safety and reliability of equipment, the generator set starts to reduce the load.
The working mode of the utility model is described by the starting function of the bypass recovery system: the first incineration waste heat furnace 10 and the second incineration waste heat furnace 20 are not started, when the first incineration waste heat furnace 10 is started, the third isolation valve 23 and the fourth isolation valve 24 at the outlet of the second incineration waste heat furnace 20 are both in a closed state, the first isolation valve 13 at the outlet of the first incineration waste heat furnace 10 is opened, the second isolation valve 14 before the collecting main pipe 31 is closed, the first temperature and pressure reducing valve 12 is opened, steam generated by the first incineration waste heat furnace 10 is discharged into the condenser 33 through the first bypass recovery pipeline 11, and a steam-water working medium during the starting period is recovered; when the steam parameters reach the impulse requirement of the steam turbine 30, the second isolation valve 14 is opened, the first temperature and pressure reducing valve 12 is gradually closed, and the steam turbine 30 starts impulse starting. Adopt the utility model discloses the bypass system who sets up can realize improving generating set start-up characteristic and steam turbine and dash the function of changing the in-process and adjusting and stabilizing the steam parameter, and accessible control admission volume is favorable to the temperature matching of main steam temperature and steam turbine rotor, improves the start-up speed simultaneously.
The working mode of the utility model is described by the function of realizing shutdown without stopping the furnace: unlike conventional coal-fired power plants, the primary function of a waste-fired power plant is waste disposal, which is generally required to operate without shutdown. After the turbine 30 is shut down, there are two operating conditions, one: the first incineration waste heat furnace 10 and the second incineration waste heat furnace 20 both run normally, the fifth isolation valve 32 at the inlet of the steam turbine 30 is closed, the first isolation valve 13 and the third isolation valve 23 are both in an open state, the second isolation valve 14 and the fourth isolation valve 24 are also in an open state, the first temperature and pressure reducing valve 12 and the second temperature and pressure reducing valve 22 are both in a full-open state, and steam generated by the first incineration waste heat furnace 10 and the second incineration waste heat furnace 20 is subjected to temperature and pressure reduction and then is recycled to the condenser 33; working conditions are as follows: the first incineration waste heat furnace 10 normally operates, the second incineration waste heat furnace 20 stops operating, at the moment, the third isolation valve 23 and the fourth isolation valve 24 at the outlet of the second incineration waste heat furnace 20 are both in a closed state, the first isolation valve 13 and the second isolation valve 14 at the outlet of the first incineration waste heat furnace 10 are both in an open state, the fifth isolation valve 32 at the inlet of the steam turbine 30 is in a closed state, the first temperature and pressure reducing valve 12 is opened, and the condenser 33 only recovers steam-water working media generated by the first incineration waste heat furnace 10. Due to the special requirements of waste incineration power generation, the steam turbine bypass system can play a considerable role in stopping the boiler, the starting time of the generator set can be greatly shortened, the steam-water working medium is recycled, and the reliability of waste incineration is improved.
Describe from realizing taking the station service operation function the utility model discloses a working method: the waste incineration waste heat furnace has the service power operation function, namely the waste incineration waste heat furnace maintains the minimum stable combustion load or full load without oil injection, the steam turbine 30 operates with service power, and the generator quickly reduces the load to about 20% of service power working conditions. It should be noted that the operating condition with service power is the worst condition of the generator set, and the damage to the steam turbine is very serious, which can greatly reduce the cycle life of the steam turbine.
After the steam turbine 30 operates with service power, there are two working conditions, i: the first waste heat incineration furnace 10 and the second waste heat incineration furnace 20 both work normally, a fifth isolation valve 32 at the inlet of a steam turbine 30 is opened, a steam inlet regulating valve of the steam turbine 30 regulates the flow to the steam consumption with the service power, a first isolation valve 13 and a third isolation valve 23 are both in an open state, a second isolation valve 14 and a fourth isolation valve 24 before a collecting main pipe 31 are also in an open state, a first temperature and pressure reducing valve 12 and a second temperature and pressure reducing valve 22 are in a regulating state, and about 80% of steam generated by the first waste heat incineration furnace 10 and the second waste heat incineration furnace 20 is subjected to temperature and pressure reduction and then is recycled to a condenser 33; working conditions are as follows: the first incineration waste heat furnace 10 normally operates, the second incineration waste heat furnace 20 stops operating, at the moment, the third isolation valve 23 and the fourth isolation valve 24 at the outlet of the second incineration waste heat furnace 20 are both in a closed state, the first isolation valve 13 and the second isolation valve 14 at the outlet of the first incineration waste heat furnace 10 and the fifth isolation valve 32 at the inlet of the steam turbine 30 are both in an open state, the first temperature and pressure reducing valve 12 is opened, and the condenser 33 only recovers about 60% of steam-water working media generated by the first incineration waste heat furnace 10.
When one incineration waste heat furnace runs and the other incineration waste heat furnace starts to start, in order to improve the starting speed of the other incineration waste heat furnace, the main steam generated by the running incineration waste heat furnace is subjected to temperature and pressure reduction through the third temperature and pressure reducing valve 310 to heat the corresponding low-pressure air preheater, so that the quick starting of the generator set is facilitated.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical solutions of the present invention, and it should be noted that, further improvements and changes can be made by those skilled in the art based on the technical solutions of the present invention, and all such improvements and changes should be covered in the protection scope of the present invention.
Claims (10)
1. The utility model provides a waste incineration power generation bypass recovery system, includes that one number burns the waste heat stove, No. two burns waste heat stove and steam turbine, one number burn waste heat stove and No. two burn the waste heat stove all through the pipeline with collect the female pipe intercommunication, collect the import intercommunication of female pipe and steam turbine, collect and be provided with the fifth isolating valve on the female pipe, the exhaust outlet of steam turbine pass through the steam-water circulation pipeline respectively with one number burn the waste heat stove and No. two water inlet intercommunications that burn the waste heat stove, steam-water circulation pipeline goes up and has set gradually condenser, condensate pump, condensate heating mechanism, oxygen-eliminating device and boiler feed pump, its characterized in that along the condensate circulation direction: the first bypass recovery pipeline is connected to a communication pipeline between the first incineration waste heat furnace and the collecting main pipe in a bypassing mode, the other end of the first bypass recovery pipeline is connected to the condenser, a first temperature and pressure reducing valve is arranged on the first bypass recovery pipeline, a first isolation valve is arranged on a communication pipeline between a bypass point of the first bypass recovery pipeline and the first incineration waste heat furnace, and a second isolation valve is arranged on a communication pipeline between the bypass point of the first bypass recovery pipeline and the collecting main pipe; one end of the second bypass recovery pipeline is connected to a communicating pipeline between the second incineration waste heat furnace and the collecting main pipe in a bypassing mode, the other end of the second bypass recovery pipeline is connected to the condenser, a second temperature and pressure reducing valve is arranged on the second bypass recovery pipeline, a third isolating valve is arranged on a communicating pipeline between a bypass point of the second bypass recovery pipeline and the second incineration waste heat furnace, and a fourth isolating valve is arranged on a communicating pipeline between the bypass point of the second bypass recovery pipeline and the collecting main pipe.
2. The waste incineration power generation bypass recovery system according to claim 1, wherein: the first pipeline is connected to the collecting main pipe in a side-by-side mode, one end of the first pipeline is communicated with the collecting main pipe, the other end of the first pipeline is communicated with the deaerator, a side-by-side connection point of the first pipeline and the collecting main pipe is located on the collecting main pipe between the fifth isolation valve and the second isolation valve or between the fifth isolation valve and the fourth isolation valve, and a third temperature and pressure reducing valve is arranged on the first pipeline.
3. The waste incineration power generation bypass recovery system according to claim 2, wherein: still include a high-pressure air preheater and No. two high-pressure air preheaters, the steam inlet of a high-pressure air preheater and the steam drum steam outlet intercommunication of a burning waste heat stove, the hydrophobic export and the oxygen-eliminating device intercommunication of a high-pressure air preheater, the air outlet of a high-pressure air preheater and the air inlet intercommunication of a burning waste heat stove, the steam inlet of No. two high-pressure air preheaters and the steam drum steam outlet intercommunication of No. two burning waste heat stoves, the hydrophobic export and the oxygen-eliminating device intercommunication of No. two high-pressure air preheaters, the air outlet of No. two high-pressure air preheaters and the air inlet intercommunication of No. two burning waste heat stoves.
4. The waste incineration power generation bypass recovery system of claim 3, wherein: still include a low pressure air preheater and No. two low pressure air preheaters, the steam inlet of a low pressure air preheater and No. two low pressure air preheaters all communicate with the steam outlet of steam turbine, the hydrophobic export of a low pressure air preheater and No. two low pressure air preheaters all communicates with the oxygen-eliminating device, the air outlet of a low pressure air preheater and No. two low pressure air preheaters communicates with the air inlet of a waste heat furnace and No. two waste heat furnaces of burning respectively.
5. The waste incineration power generation bypass recovery system of claim 4, wherein: and a second pipeline respectively communicated with inlets of the first low-pressure air preheater and the second low-pressure air preheater is further connected to the first pipeline communicated with the deaerator in a bypassing manner.
6. The waste incineration power generation bypass recovery system according to claim 1, wherein: the condensed water heating structure comprises a steam seal heater and a low-pressure heater which are sequentially arranged along the flowing direction of the condensed water.
7. The waste incineration power generation bypass recovery system of claim 6, wherein: the inlet of the low-pressure heater is also communicated with the steam outlet of the steam turbine.
8. The waste incineration power generation bypass recovery system according to claim 1, wherein: a safety valve and a steam exhaust valve are sequentially arranged between the first incineration waste heat furnace and the first isolation valve, and a second safety valve and a second steam exhaust valve are sequentially arranged between the second incineration waste heat furnace and the third isolation valve.
9. The waste incineration power generation bypass recovery system of claim 8, wherein: the opening pressure of the first steam exhaust valve is lower than that of the first safety valve, and the opening pressure of the second steam exhaust valve is lower than that of the second safety valve.
10. The waste incineration power generation bypass recovery system according to claim 1, wherein: the first isolation valve, the second isolation valve, the third isolation valve, the fourth isolation valve and the fifth isolation valve are all electric isolation valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922111154.9U CN211011382U (en) | 2019-11-30 | 2019-11-30 | Waste incineration power generation bypass recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922111154.9U CN211011382U (en) | 2019-11-30 | 2019-11-30 | Waste incineration power generation bypass recovery system |
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| Publication Number | Publication Date |
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| CN211011382U true CN211011382U (en) | 2020-07-14 |
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| CN201922111154.9U Active CN211011382U (en) | 2019-11-30 | 2019-11-30 | Waste incineration power generation bypass recovery system |
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