CN219366121U - CCPP unit cogeneration system - Google Patents
CCPP unit cogeneration system Download PDFInfo
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- CN219366121U CN219366121U CN202223223046.9U CN202223223046U CN219366121U CN 219366121 U CN219366121 U CN 219366121U CN 202223223046 U CN202223223046 U CN 202223223046U CN 219366121 U CN219366121 U CN 219366121U
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Abstract
The utility model relates to the technical field of CCPP units, in particular to a heat and power cogeneration system of a CCPP unit. In the system, one end of a main pipeline is connected with a steam outlet of a waste heat boiler, the other end of the main pipeline is connected with one ends of a first branch and a second branch, the main pipeline is switchably communicated with the first branch and the second branch, the other end of the first branch is connected with a steam inlet of a condensing pumping type steam turbine generator through a pipeline, the other end of the second branch is connected with the steam inlet of a back pressure type steam turbine generator through a pipeline, and the steam outlet of the condensing pumping type steam turbine generator is connected with a low-pressure heat supply network through a pipeline. The utility model provides a CCPP unit cogeneration system has increased back pressure formula turbine generator, and back pressure formula turbine generator's heat supply capacity is stronger than drawing the formula turbine generator that congeals to can satisfy the heat supply demand of iron and steel enterprise in the heating season.
Description
Technical Field
The utility model relates to the technical field of CCPP units, in particular to a heat and power cogeneration system of a CCPP unit.
Background
The CCPP (gas-steam combined cycle) unit has the technical characteristics of high heat efficiency, small cooling water quantity and flexible start-stop adjustment, and is widely applied to large-scale steel enterprises and used for recycling low-heat-value blast furnace gas to generate electricity and supply heat.
In the related technology, the peak-valley deviation of the heat supply demand of the iron and steel enterprises is larger, the CCPP unit generates power preferentially in non-parametric warm seasons, a pump condensing turbine is adopted in most cases, and the side operation of the turbine is mainly based on the pure condensing working condition; the heat supply requirements of enterprises in heating seasons are rapidly increased, heat supply gaps are large, and the CCPP unit is limited by the process characteristics of the extraction condensing type turbine generator, so that the heat supply capability is insufficient, and the requirements of different production of non-heating-season efficient power generation and heating-season full-power heat supply cannot be met. Therefore, when iron and steel enterprises are in heating seasons, the operation of the low-efficiency thermoelectric heat supply unit is preferentially ensured, and the CCPP unit is forced to be shut down due to insufficient heat supply capacity, so that the gas energy utilization efficiency is low, and the economy is poor.
Disclosure of Invention
The utility model provides a CCPP unit cogeneration system, when having solved among the correlation technique iron and steel enterprise in the heating season, the CCPP unit is then forced to stop running owing to the heat supply ability is not enough to lead to the technical problem that gas energy utilization efficiency is low, economic nature is poor.
The utility model provides a CCPP unit cogeneration system, include: the system comprises a gas generator, a waste heat boiler, a condensing type turbine generator, a condensing device, a back pressure type turbine generator, a low-pressure heat supply network, a main pipeline, a first branch and a second branch;
wherein, the steam outlet of the gas generator set is connected with the steam inlet of the waste heat boiler; one end of the main pipeline is connected with a steam outlet of the exhaust-heat boiler, the other end of the main pipeline is connected with one ends of the first branch and the second branch, the main pipeline is switchably communicated with the first branch and the second branch, the other end of the first branch is connected with a steam inlet of the condensing-pumping type steam generator through a pipeline, the other end of the second branch is connected with a steam inlet of the back-pressure type steam generator through a pipeline, a steam outlet of the condensing-pumping type steam generator and a steam outlet of the back-pressure type steam generator are connected with the low-pressure heat supply network through pipelines, a steam outlet of the condensing-pumping type steam generator is further connected with a steam inlet of the condensing device, and the condensing device is used for converting steam exhausted by the condensing-pumping type steam generator into condensed water and supplying the condensed water to the exhaust-heat boiler.
In some embodiments, the system further comprises a temperature and pressure reducer, the other end of the second branch is connected with a steam inlet of the temperature and pressure reducer through a pipeline, the second branch is switchably communicated with the back pressure type steam turbine generator and the steam inlet of the temperature and pressure reducer, a steam outlet of the temperature and pressure reducer is connected with the low-pressure heat supply network through a pipeline, and the temperature and pressure reducer is used for reducing temperature and pressure of steam exhausted by the waste heat boiler.
In some embodiments, the first branch is provided with a first main gate valve, the second branch is provided with a second main gate valve, a pipeline between the second branch and the back pressure type turbine generator is provided with a first auxiliary gate valve, and a pipeline between the second branch and the temperature and pressure reducer is provided with a second auxiliary gate valve.
In some embodiments, a steam extraction regulating valve is arranged on a pipeline between the extraction condensing type steam turbine generator and the low-pressure heat supply network, a back press outlet valve is arranged on a pipeline between the back pressure type steam turbine generator and the low-pressure heat supply network, and a temperature and pressure reduction outlet valve is arranged on a pipeline between the temperature and pressure reducer and the low-pressure heat supply network.
In some embodiments, the condensing device comprises a condenser and a first water pump, the steam inlet of the condenser is configured as the steam inlet of the condensing device, the water outlet of the condenser is connected with the water inlet of the waste heat boiler through a first water supplementing pipeline, the first water pump is arranged on the first water supplementing pipeline, and the first water pump is used for extracting condensed water in the condenser to the waste heat boiler.
In some embodiments, the condensing device further comprises a second water pump, which is also disposed on the first water replenishing pipe.
In some embodiments, the condensing device further comprises a demineralized water main pipe for providing demineralized water, the water outlet of the demineralized water main pipe is connected with the water inlet of the condenser through a second water supplementing pipe, the water outlet of the demineralized water main pipe is connected with the water inlet of the waste heat boiler through a third water supplementing pipe, and the demineralized water main pipe is switchably communicated with the water inlet of the condenser and the water inlet of the waste heat boiler.
In some embodiments, the first water supplementing pipeline is further provided with a first waste heat boiler water supplementing regulating valve, the first water pump and the second water pump are arranged between the condenser and the first waste heat boiler water supplementing regulating valve, the second water supplementing pipeline is provided with a condenser water supplementing regulating valve, and the third water supplementing pipeline is provided with a second waste heat boiler water supplementing regulating valve.
In some embodiments, the third water replenishing pipe is connected to the first water replenishing pipe, and a connection point of the third water replenishing pipe to the first water replenishing pipe is disposed between the first waste heat boiler water replenishing regulating valve and the waste heat boiler.
In some embodiments, the condensing device further comprises a condenser level gauge for displaying the level of condensed water in the condenser.
The beneficial effects of the application are as follows:
according to the CCPP unit cogeneration system, the back pressure type steam turbine generator is added, the heat supply capacity of the back pressure type steam turbine generator is higher than that of the extraction condensing type steam turbine generator, and after the steam generated by the waste heat boiler expands in the back pressure type steam turbine to do work, the generated saturated steam fully enters the low-pressure heat supply network to realize external heat supply, so that the heat supply requirement of iron and steel enterprises in heating seasons can be met; because main pipeline switchably communicates with first branch road and second branch road, when main pipeline and first branch road intercommunication, the steam that exhaust-heat boiler produced gets into and draws in congeal formula turbine generator, draw congeal formula turbine generator operation, in order to satisfy high-efficient electricity generation, when main pipeline and second branch road intercommunication, the steam that exhaust-heat boiler produced gets into back pressure steam turbine, back pressure steam turbine operation, in order to satisfy full power heat supply, thereby can compromise the high-efficient electricity generation of non-heating season, heating season full power heat supply, when being in the heating season, CCPP unit also can continue to operate, gas energy utilization efficiency has been improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present utility model.
Fig. 1 is a schematic diagram of a CCPP unit cogeneration system provided in this embodiment.
Reference numerals illustrate:
1-main pipeline, 2-first branch, 21-first main gate valve, 22-steam extraction regulating valve, 3-second branch, 31-second main gate valve, 32-back pressure machine outlet valve, 33-temperature and pressure reducing outlet valve, 4-first water supplementing pipeline, 41-first waste heat boiler water supplementing regulating valve, 5-second water supplementing pipeline, 51-condenser water supplementing regulating valve, 6-third water supplementing pipeline, 61-second waste heat boiler water supplementing regulating valve, 100-gas generator, 200-waste heat boiler, 300-extraction condensing type steam generator, 400-condensing device, 410-condenser, 420-first water pump, 430-second water pump, 440-desalted water main pipe, 450-condenser liquid level meter, 500-back pressure type steam generator, 600-temperature and pressure reducing device and 700-low pressure heat supply network.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a CCPP unit cogeneration system, including gas generator 100, exhaust-heat boiler 200, take out congeals formula turbine generator 300, condensing plant 400, back pressure formula turbine generator 500, low pressure heat supply network 700, main line 1, first branch road 2 and second branch road 3. The steam outlet of the gas generator 100 set is connected with the steam inlet of the waste heat boiler 200, compressed gas and compressed combustion air are combusted in the gas generator to form expanded high-temperature gas flow to push the gas generator to do work for generating electricity, and the high-temperature flue gas after doing work enters the waste heat boiler 200 for heat exchange again, so that condensed water entering the steam drum of the waste heat boiler 200 is heated to form steam.
One end of the main pipeline 1 is connected with a steam outlet of the waste heat boiler 200, steam generated by the waste heat boiler 200 enters the main pipeline 1, the other end of the main pipeline 1 is connected with one ends of the first branch pipeline 2 and the second branch pipeline 3, the first branch pipeline 2 and the second branch pipeline 3 are respectively arranged on two sides of the main pipeline 1, the main pipeline 1 is switchably communicated with the first branch pipeline 2 and the second branch pipeline 3, the other end of the first branch pipeline 2 is connected with a steam inlet of the condensing turbine generator 300 through a pipeline, the other end of the second branch pipeline 3 is connected with a steam inlet of the back pressure turbine generator 500 through a pipeline, namely, when the main pipeline 1 is communicated with the first branch pipeline 2, the steam generated by the waste heat boiler 200 enters the condensing turbine generator 300, and when the main pipeline 1 is communicated with the second branch pipeline 3, the steam generated by the waste heat boiler 200 enters the back pressure turbine.
The steam outlet of the condensing turbine generator 300 and the steam outlet of the back pressure turbine generator 500 are connected with the low-pressure heat supply network 700 through pipelines, the steam discharged by the condensing turbine generator 300 and the back pressure turbine generator 500 enters the low-pressure heat supply network 700 to realize external heat supply, the steam outlet of the condensing turbine generator 300 is also connected with the steam inlet of the condensing device 400, and the condensing device 400 is used for converting the steam discharged by the condensing turbine generator 300 into condensed water and supplying the condensed water to the waste heat boiler 200.
It should be noted that under the same steam supply parameters, the power generated by the condensing type steam turbine generator 300 is higher, after the steam generated by the waste heat boiler 200 expands in the condensing type steam turbine generator 300 to do work, a small part of the steam leaks gas, all the steam enters the condenser 410 to condense into water and is supplied to the waste heat boiler 200, so that efficient power generation can be realized, the back pressure type steam turbine does not have the condenser 410, after the steam generated by the waste heat boiler 200 expands in the back pressure type steam turbine to do work, all the generated saturated steam enters the steam pipe network to be externally supplied, and the heat supply capacity of the back pressure type steam turbine generator 500 is stronger than that of the condensing type steam turbine generator 300, so that the heat supply requirement of a steel enterprise in a heating season can be met.
In the cogeneration system of the CCPP unit provided by the embodiment of the present application, since the main pipeline 1 is switchably communicated with the first branch 2 and the second branch 3, when the main pipeline 1 is communicated with the first branch 2 in a non-heating season, steam generated by the waste heat boiler 200 enters the extraction condensing type turbine generator 300, and the extraction condensing type turbine generator 300 generates electricity preferentially, and at this time, the CCPP unit is in a high-efficiency power generation mode; in the heating season, the main pipeline 1 is switched to be communicated with the second branch pipeline 3, steam generated by the waste heat boiler 200 enters the back pressure steam turbine, partial energy is utilized to generate electricity, then the steam is changed into low-pressure steam to be fully supplied to the low-pressure heat supply network 700, the full heat supply capacity of the unit is released, the CCPP unit is in the full heat supply mode at the moment, and the problem that the unit is forced to stop running due to insufficient heat supply capacity in the heating season is solved through the switching of the high-efficiency power generation mode and the full heat supply mode of the CCPP unit, so that the gas utilization efficiency and the heat supply economy are improved.
Further, the CCPP unit cogeneration system provided by the embodiment of the application further includes a temperature and pressure reducer 600, the other end of the second branch 3 is connected with the steam inlet of the temperature and pressure reducer 600 through a pipeline, and the second branch 3 is switchably communicated with the back pressure type steam turbine generator 500 and the steam inlet of the temperature and pressure reducer 600, the steam outlet of the temperature and pressure reducer 600 is connected with the low pressure heat supply network 700 through a pipeline, and the temperature and pressure reducer 600 is used for reducing temperature and pressure of steam exhausted by the waste heat boiler 200.
When the back pressure type steam turbine generator 500 is abnormal, the second branch 3 can be communicated with the steam inlet of the temperature and pressure reducer 600, so that the steam generated by the waste heat boiler 200 is subjected to parameter reduction through the temperature and pressure reducer 600, saturated steam meeting the requirements is formed and then is directly supplied into the low-pressure heat supply network 700, namely, when the back pressure type steam turbine generator 500 is abnormal, the heat supply task can be directly executed through another path, and when the CCPP unit is switched from the high-efficiency power generation mode to the full-power heat supply mode, a great amount of time and operation are required for starting the back pressure type steam turbine, and during the time, the steam can be firstly fed into the temperature and pressure reducer 600 to supply heat to the outside, so that the heat supply reliability of the CCPP unit is improved.
Further, in this embodiment, the first branch 2 is provided with a first main gate valve 21, and the second branch 3 is provided with a second main gate valve 31, so that the main pipeline 1 can be switchably communicated with the first branch 2 and the second branch 3 through the switch of the first main gate valve 21 and the second main gate valve 31; a first auxiliary gate valve (not shown) is arranged on a pipeline between the second branch 3 and the back pressure type turbine generator 500, and a second auxiliary gate valve (not shown) is arranged on a pipeline between the second branch 3 and the temperature and pressure reducer 600, so that the second branch 3 can be switchably communicated with steam inlets of the back pressure type turbine generator 500 and the temperature and pressure reducer 600 through the switch of the first auxiliary gate valve and the second auxiliary gate valve.
Further, a steam extraction regulating valve 22 is arranged on a pipeline between the extraction condensing type steam turbine generator 300 and the low-pressure heat supply network 700, and the extraction condensing type steam turbine generator 300 can supply a small amount of steam to the low-pressure heat supply network 700 through the steam extraction regulating valve 22; a back pressure machine outlet valve 32 is arranged on a pipeline between the back pressure type steam turbine generator 500 and the low-pressure heat supply network 700, a temperature and pressure reduction outlet valve 33 is arranged on a pipeline between the temperature and pressure reducer 600 and the low-pressure heat supply network 700, and steam exhausted by the back pressure type steam turbine generator 500 and the temperature and pressure reducer 600 is respectively supplied to the low-pressure heat supply network 700 through the back pressure machine outlet valve 32 and the temperature and pressure reduction outlet valve 33.
Further, the condensing device 400 includes a condenser 410 and a first water pump 420, wherein a steam inlet of the condenser 410 is configured as a steam inlet of the condensing device 400, that is, steam discharged from the condensing turbine generator 300 enters the condenser 410 to be converted into condensed water. The water outlet of the condenser 410 is connected with the water inlet of the waste heat boiler 200 through a first water supplementing pipeline 4, a first water pump 420 is arranged on the first water supplementing pipeline 4, and the first water pump 420 is used for extracting condensed water in the condenser 410 into the waste heat boiler 200.
Because in practical application, the water supply distance between the condenser 410 and the waste heat boiler 200 is longer, in order to ensure the extraction effect of the condensed water, the condensing device 400 further includes a second water pump 430, the second water pump 430 is also disposed on the first water supplementing pipe 4, and the first water pump 420 and the second water pump 430 jointly extract the condensed water in the condenser 410 into the waste heat boiler 200.
Although the steam-water circulation is realized by the extraction-condensation type steam turbine generator 300, because of factors such as shaft seal leakage, dissipation loss and the like, water supplementing needs to be carried out on the condenser 410 to keep the liquid level, when the CCPP unit is in the full-power heat supply mode, the extraction-condensation type steam turbine generator 300 is withdrawn, and all steam generated by the back pressure type steam turbine generator 500 enters the heat supply network, so that a large amount of water supplementing needs to be carried out on the waste heat boiler 200 to generate enough steam to continue generating power and supplying heat. Therefore, the steam condensing device 400 in this embodiment further includes a demineralized water main pipe 440 for providing demineralized water, the water outlet of the demineralized water main pipe 440 is connected to the water inlet of the condenser 410 through the second water supplementing pipe 5, the water outlet of the demineralized water main pipe 440 is connected to the water inlet of the waste heat boiler 200 through the third water supplementing pipe 6, and the demineralized water main pipe 440 is switchably connected to the water inlet of the condenser 410 and the water inlet of the waste heat boiler 200, so as to selectively supplement water for the condenser 410 and the waste heat boiler 200.
Further, the first water supplementing pipe 4 is further provided with a first waste heat boiler water supplementing adjusting valve 41 for adjusting the water inflow to the waste heat boiler 200. The first water pump 420 and the second water pump 430 are arranged between the condenser 410 and the first waste heat boiler water supplementing regulating valve 41, the condenser 410 water supplementing regulating valve 51 is arranged on the second water supplementing pipeline 5, and the second waste heat boiler water supplementing regulating valve 61 is arranged on the third water supplementing pipeline 6, so that the demineralized water main pipe 440 is switchably communicated with the water inlet of the condenser 410 and the water inlet of the waste heat boiler 200 through the first waste heat boiler water supplementing regulating valve 41 and the condenser 410 water supplementing regulating valve 51.
Further, the third water supplementing pipe 6 is connected with the first water supplementing pipe 4, and a connection point of the third water supplementing pipe 6 and the first water supplementing pipe 4 is arranged between the first waste heat boiler water supplementing adjusting valve 41 and the waste heat boiler 200, that is, the third water supplementing pipe 6 is communicated with the first water supplementing pipe 4, so that desalted water sequentially enters the waste heat boiler 200 through the third water supplementing pipe 6 and the first water supplementing pipe 4.
Further, the condensing device 400 further includes a condenser 410 level gauge, where the condenser 410 level gauge is used to display the level of condensed water in the condenser 410, and when the level of condensed water in the condenser 410 is lower than a standard, the desalted water main pipe 440 is communicated with the water inlet of the condenser 410 to supplement desalted water to the condenser 410.
When the CCPP unit is in the efficient power generation mode, the gas turbine generator runs at full load, the steam outlet of the waste heat boiler 200 is communicated with the steam inlet of the condensing steam turbine generator 300, the water outlet of the desalted water main pipe 440 is communicated with the water inlet of the condenser 410, and the switching process from the efficient power generation mode to the full power heat supply mode of the CCPP unit cogeneration system of the embodiment is described as follows:
s1: the rated load of the gas turbine generator and the main steam flow of the waste heat boiler 200 are reduced, the steam outlet of the waste heat boiler 200 is communicated with the steam inlet of the temperature and pressure reducer 600, steam is supplied into the low-pressure heat supply network 700 through the temperature and pressure reducing outlet valve 33, the extraction condensing type gas turbine generator 300 is closed, and the steam side switching is completed;
s2: opening the second waste heat boiler water supplementing regulating valve 61, communicating the water outlet of the desalted water main pipe 440 with the water inlet of the waste heat boiler 200 to supplement desalted water for the waste heat boiler 200, closing the first waste heat boiler water supplementing regulating valve 41 and the condenser 410 water supplementing regulating valve 51, and stopping the first water pump 420 and the second water pump 430;
s3: starting the back pressure type steam turbine generator 500, communicating the steam outlet of the waste heat boiler 200 with the steam inlet of the back pressure type steam turbine generator 500, and enabling the temperature and pressure reducer 600 to exit to operate, so as to keep a standby state;
s4: after the system is free from abnormal operation, the gas turbine generator is restored to rated load, the switching from the high-efficiency power generation mode to the full-power heat supply mode in the CCPP unit cogeneration system is finished on line, the CCPP unit is not stopped in the process, and high-pressure main steam produced by the waste heat boiler 200 completely enters the back pressure type gas turbine generator 500 to generate power and then is fed into the low-pressure heat supply network 700.
While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A CCPP machine set cogeneration system, comprising: the system comprises a gas generator, a waste heat boiler, a condensing type turbine generator, a condensing device, a back pressure type turbine generator, a low-pressure heat supply network, a main pipeline, a first branch and a second branch;
wherein, the steam outlet of the gas generator is connected with the steam inlet of the waste heat boiler; one end of the main pipeline is connected with a steam outlet of the exhaust-heat boiler, the other end of the main pipeline is connected with one ends of the first branch and the second branch, the main pipeline is switchably communicated with the first branch and the second branch, the other end of the first branch is connected with a steam inlet of the condensing-pumping type steam generator through a pipeline, the other end of the second branch is connected with a steam inlet of the back-pressure type steam generator through a pipeline, a steam outlet of the condensing-pumping type steam generator and a steam outlet of the back-pressure type steam generator are connected with the low-pressure heat supply network through pipelines, a steam outlet of the condensing-pumping type steam generator is further connected with a steam inlet of the condensing device, and the condensing device is used for converting steam exhausted by the condensing-pumping type steam generator into condensed water and supplying the condensed water to the exhaust-heat boiler.
2. The CCPP plant cogeneration system of claim 1, further comprising a temperature and pressure reducer, wherein the other end of the second branch is connected to the steam inlet of the temperature and pressure reducer by a pipe, and the second branch is switchably connected to the back pressure turbine generator and the steam inlet of the temperature and pressure reducer, and the steam outlet of the temperature and pressure reducer is connected to the low pressure heat supply network by a pipe, and the temperature and pressure reducer is used for reducing the temperature and pressure of steam discharged from the waste heat boiler.
3. The CCPP plant cogeneration system of claim 2, wherein a first main gate valve is provided on the first branch, a second main gate valve is provided on the second branch, a first auxiliary gate valve is provided on a pipe between the second branch and the back pressure turbine generator, and a second auxiliary gate valve is provided on a pipe between the second branch and the temperature and pressure reducer.
4. The CCPP plant cogeneration system of claim 2 wherein a steam extraction regulating valve is provided on a conduit between said extraction condensing turbine generator and said low pressure heat supply network, a back press outlet valve is provided on a conduit between said back pressure turbine generator and said low pressure heat supply network, and a temperature and pressure reducing outlet valve is provided on a conduit between said temperature and pressure reducer and said low pressure heat supply network.
5. The CCPP unit cogeneration system of claim 1, wherein the condensing device comprises a condenser and a first water pump, the steam inlet of the condenser is configured as the steam inlet of the condensing device, the water outlet of the condenser is connected with the water inlet of the waste heat boiler through a first water supplementing pipe, the first water pump is arranged on the first water supplementing pipe, and the first water pump is used for extracting condensed water in the condenser into the waste heat boiler.
6. The CCPP assembly cogeneration system of claim 5 wherein said condensing unit further comprises a second water pump, said second water pump also being disposed on said first water replenishment conduit.
7. The CCPP plant cogeneration system of claim 6, wherein the condensing unit further comprises a demineralized water main pipe for providing demineralized water, the water outlet of the demineralized water main pipe is connected with the water inlet of the condenser through a second water supplementing pipe, the water outlet of the demineralized water main pipe is connected with the water inlet of the waste heat boiler through a third water supplementing pipe, and the demineralized water main pipe is switchably communicated with the water inlet of the condenser and the water inlet of the waste heat boiler.
8. The CCPP unit cogeneration system of claim 7, wherein a first waste heat boiler water make-up regulating valve is further provided on the first water make-up pipe, the first water pump and the second water pump are provided between the condenser and the first waste heat boiler water make-up regulating valve, a condenser water make-up regulating valve is provided on the second water make-up pipe, and a second waste heat boiler water make-up regulating valve is provided on the third water make-up pipe.
9. The CCPP machine set cogeneration system of claim 8 wherein the third water fill pipe is connected to the first water fill pipe and a connection point of the third water fill pipe to the first water fill pipe is disposed between the first waste heat boiler water fill regulating valve and the waste heat boiler.
10. The CCPP assembly cogeneration system of claim 4 wherein said condensing unit further comprises a condenser level gauge for displaying the level of condensed water in said condenser.
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| CN202223223046.9U CN219366121U (en) | 2022-12-01 | 2022-12-01 | CCPP unit cogeneration system |
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| CN202223223046.9U CN219366121U (en) | 2022-12-01 | 2022-12-01 | CCPP unit cogeneration system |
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