CN216518190U - Combined heat and power generation system - Google Patents
Combined heat and power generation system Download PDFInfo
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- CN216518190U CN216518190U CN202122909523.6U CN202122909523U CN216518190U CN 216518190 U CN216518190 U CN 216518190U CN 202122909523 U CN202122909523 U CN 202122909523U CN 216518190 U CN216518190 U CN 216518190U
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Abstract
The application discloses a combined heat and power generation system, which comprises a first steam extraction ejector and a second steam extraction ejector, wherein the steam inlet end of the first steam extraction ejector is connected with one end of a first switch component, the other end of the first switch component is connected with a reheated steam exhaust port of a boiler of a coal-fired power generation device, the steam inlet end of the first steam extraction ejector is connected with one end of a second switch component, and the other end of the second switch component is connected with a steam exhaust port of a steam turbine intermediate pressure cylinder of the coal-fired power generation device; the steam inlet end of the second steam extraction ejector is connected with one end of a third switch component, the other end of the third switch component is connected with a steam exhaust port of a steam turbine medium-pressure cylinder, the steam inlet end of the second steam extraction ejector is connected with one end of a fourth switch component, the other end of the fourth switch component is connected with a sixth-stage steam extraction and exhaust port of a steam turbine low-pressure cylinder of the coal-fired power generation device, the steam outlet end of the second steam extraction ejector is connected with one end of a fifth switch component, and the other end of the fifth switch component is connected with the steam inlet end of the seawater desalination device.
Description
Technical Field
The application relates to the field of heat engine thermodynamic systems, in particular to a combined heat and power generation system.
Background
In coastal areas in the north of China, according to local climate and hydrological characteristics, a coal-fired power generation device is often integrated with a heat supply device and a seawater desalination device to form a thermoelectric and water cogeneration system, so as to solve the problems of fresh water resource shortage and power and heat supply shortage in the coastal areas in the north.
In the related art, when a generator set in a coal-fired power generation device operates at a low load, a fourth-stage steam extraction and exhaust port of a steam turbine intermediate pressure cylinder in the coal-fired power generation device is generally adopted to supply steam to a seawater desalination device, but the fluctuation of seawater extraction and exhaust pressure is huge due to frequent peak regulation and deep peak regulation of the coal-fired power generation device, so that the steam pressure of the fourth-stage steam extraction and exhaust port of the steam turbine intermediate pressure cylinder is lower, and further, when the generator set operates at a low load, the steam supply pressure received by the seawater desalination device is lower, so that the water production quantity of the seawater desalination device is reduced.
SUMMERY OF THE UTILITY MODEL
The application discloses cogeneration of heat and power system has solved generating set among the coal fired power generation facility when the low-load operation, and the steam supply pressure that the sea water desalination device received is on the low side, leads to the problem that sea water desalination device's system water yield reduces.
In order to solve the above problems, the following technical solutions are adopted in the present application:
the embodiment of the application discloses combined heat and power generation system includes: first extraction of vapour ejector and second extraction of vapour ejector, wherein: the steam inlet end of the first steam extraction ejector is connected with one end of a first switch assembly, the other end of the first switch assembly is connected with a reheat steam exhaust port of a boiler of the coal-fired power generation device, the steam inlet end of the first steam extraction ejector is connected with one end of a second switch assembly, the other end of the second switch assembly is connected with a steam exhaust port of a steam turbine intermediate pressure cylinder of the coal-fired power generation device, and the steam outlet end of the first steam extraction ejector is connected with the steam inlet end of the seawater desalination device; the steam inlet end of the second steam extraction ejector is connected with one end of a third switch component, the other end of the third switch component is connected with a steam exhaust port of a steam turbine intermediate pressure cylinder, the steam inlet end of the second steam extraction ejector is connected with one end of a fourth switch component, the other end of the fourth switch component is connected with a sixth-stage steam extraction and steam exhaust port of a steam turbine low pressure cylinder of the coal-fired power generation device, the steam outlet end of the second steam extraction ejector is connected with one end of a fifth switch component, and the other end of the fifth switch component is connected with the steam inlet end of the seawater desalination device.
The technical scheme adopted by the application can achieve the following beneficial effects:
the embodiment of the application provides a cogeneration system, the cogeneration system comprises a first steam extraction ejector and a second steam extraction ejector, under the condition that a generator set in a coal-fired power generation device runs at a low load, reheated steam of a boiler of the coal-fired power generation device and exhaust steam of a steam turbine intermediate pressure cylinder of the coal-fired power generation device are mixed at the first steam extraction ejector and then supply steam to a seawater desalination device, under the condition that the generator set in the coal-fired power generation device runs at a high load, exhaust steam of the steam turbine intermediate pressure cylinder of the coal-fired power generation device and exhaust steam of a sixth-stage steam extraction of a steam turbine low pressure cylinder of the coal-fired power generation device are mixed at the second steam extraction ejector and then supply steam to the seawater desalination device, the steam supply pressure received by the seawater desalination device is increased, and the water production amount of the seawater desalination device is increased. In addition, the water production amount of the seawater desalination device is stabilized by setting the mode that the generator sets supply steam to the seawater desalination device respectively and correspondingly under different operation loads.
Drawings
Fig. 1 is a schematic structural diagram of a cogeneration system according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In the specification and claims, "and/or" indicates at least one of electrically connected objects, and a character "/" generally indicates that the preceding and following related objects are in an "or" relationship.
Fig. 1 is a schematic structural diagram of a cogeneration system according to an embodiment of the present application.
As shown in fig. 1, a cogeneration system disclosed in an embodiment of the present application includes: a first extraction ejector 110 and a second extraction ejector 120, wherein: the steam inlet end of the first steam extraction ejector 110 is connected with one end of a first switch component 210, the other end of the first switch component 210 is connected with a reheat steam exhaust port of a boiler 131 of the coal-fired power generation device, the steam inlet end of the first steam extraction ejector 110 is connected with one end of a second switch component, the other end of the second switch component is connected with a steam exhaust port of a steam turbine intermediate pressure cylinder 132 of the coal-fired power generation device, and the steam outlet end of the first steam extraction ejector 110 is connected with the steam inlet end of the seawater desalination device 140.
That is, the reheated steam of the boiler 131 of the coal-fired power generation plant and the exhaust steam of the steam turbine intermediate pressure cylinder 132 of the coal-fired power generation plant may be mixed by the first steam extraction ejector 110 and then supplied to the seawater desalination plant 140, so that the steam supply pressure received by the seawater desalination plant 140 is increased, and the water production amount of the seawater desalination plant 140 is increased.
The steam inlet end of the second steam extraction ejector 120 is connected with one end of a third switch component, the other end of the third switch component is connected with a steam exhaust port of a steam turbine intermediate pressure cylinder 132, the steam inlet end of the second steam extraction ejector 120 is connected with one end of a fourth switch component 240, the other end of the fourth switch component 240 is connected with a sixth-stage steam extraction and exhaust port of a steam turbine low pressure cylinder 133 of the coal-fired power generation device, the steam outlet end of the second steam extraction ejector 120 is connected with one end of a fifth switch component, and the other end of the fifth switch component is connected with the steam inlet end of the seawater desalination device 140.
That is, the exhaust steam of the turbine intermediate pressure cylinder 132 of the coal-fired power generation plant and the exhaust steam of the sixth stage of the turbine low pressure cylinder 133 of the coal-fired power generation plant can be mixed by the second steam extraction ejector 120 and then supplied to the seawater desalination device 140, so that the steam supply pressure received by the seawater desalination device 140 is increased, and the water production amount of the seawater desalination device 140 is increased.
Specifically, under the condition that a generator set in the coal-fired power generation device operates at a low load, the first switch assembly 210 and the second switch assembly are opened, reheat steam of a boiler 131 of the coal-fired power generation device enters the first steam extraction ejector 110 through the first switch assembly 210, exhaust steam of a steam turbine intermediate pressure cylinder 132 of the coal-fired power generation device enters the first steam extraction ejector 110 through the second switch assembly, and the reheat steam of the boiler 131 of the coal-fired power generation device and the exhaust steam of the steam turbine intermediate pressure cylinder 132 of the coal-fired power generation device are mixed in the first steam extraction ejector 110 and then supply steam to the seawater desalination device 140.
Under the condition that a generator set in the coal-fired power generation device runs at a high load, the third switch component, the fourth switch component 240 and the fifth switch component are opened, the exhaust steam of the steam turbine intermediate pressure cylinder 132 of the coal-fired power generation device enters the second steam extraction ejector 120 through the third switch component, the sixth-stage steam extraction and exhaust steam of the steam turbine low pressure cylinder 133 of the coal-fired power generation device enters the second steam extraction ejector 120 through the fourth switch component 240, and after the exhaust steam of the steam turbine intermediate pressure cylinder 132 of the coal-fired power generation device and the sixth-stage steam extraction and exhaust steam of the steam turbine low pressure cylinder 133 of the coal-fired power generation device are mixed in the second steam extraction ejector 120, the fifth switch component supplies steam to the seawater desalination device 140.
The embodiment of the application provides a combined heat and power generation system, which comprises a first steam extraction ejector 110 and a second steam extraction ejector 120, in the case of low load operation of the power generating unit in the coal-fired power generating apparatus, the reheated steam of the boiler 131 of the coal-fired power generating apparatus and the exhaust steam of the steam turbine intermediate pressure cylinder 132 of the coal-fired power generating apparatus are mixed in the first steam extraction ejector 110 and then supplied to the sea water desalination apparatus 140, under the condition that a generator set in the coal-fired power generation device operates at a high load, the exhaust steam of the steam turbine intermediate pressure cylinder 132 of the coal-fired power generation device and the sixth stage extraction exhaust steam of the steam turbine low pressure cylinder 133 of the coal-fired power generation device are mixed in the second extraction ejector 120 and then supplied to the seawater desalination device 140, so that the steam supply pressure received by the seawater desalination device 140 is increased, and the water production amount of the seawater desalination device 140 is increased. In addition, the water production amount of the seawater desalination device 140 is stabilized by setting the generator sets to supply steam to the seawater desalination device 140 respectively and correspondingly under different operation loads.
In a further technical solution, a sixth switch assembly may be further included, one end of the sixth switch assembly is connected to the steam outlet of the steam turbine intermediate pressure cylinder 132, and the other end of the sixth switch assembly is connected to the steam inlet of the seawater desalination apparatus 140. That is, the steam may be directly supplied to the seawater desalination apparatus 140 through the exhaust steam of the steam turbine intermediate pressure cylinder 132 of the coal-fired power plant. Specifically, when the generator set in the coal-fired power plant is operated at a medium load, the sixth switching element is turned on, and the exhaust steam of the steam turbine intermediate pressure cylinder 132 of the coal-fired power plant supplies steam to the seawater desalination plant 140 through the sixth switching element. By setting the mode that the generator sets respectively supply steam to the seawater desalination device 140 in a corresponding manner under different operating loads, the generator sets can meet the steam supply requirements of the seawater desalination device 140 under different operating loads, and efficient steam supply to the seawater desalination device 140 under the full working condition of the generator sets is realized.
In this embodiment, the cogeneration system may further include a seventh switching element 270, one end of the seventh switching element 270 is connected to the connection point of the steam outlet end of the second steam extraction ejector 120 and the fifth switching element, and the other end of the seventh switching element 270 is connected to the steam inlet end of the heating apparatus 150. By turning on the seventh switch 270, the coal-fired power plant can also supply steam to the heating apparatus 150, thereby improving the utilization rate of energy.
The first, second, third, fourth, fifth, sixth, and seventh switching assemblies 210, 240, 270 in the present application may be switching valves or groups of switching valves.
In an embodiment of the present application, the second switching assembly may include a first switching valve 221 and a second switching valve 222, one end of the first switching valve 221 is connected to the steam exhaust port of the turbine intermediate pressure cylinder 132, the other end of the first switching valve is connected to one end of the second switching valve 222, and the other end of the second switching valve 222 is connected to the steam inlet end of the first steam extraction ejector 110. That is, in the case where both the first and second switching valves 221 and 222 are opened, the exhaust steam of the turbine intermediate pressure cylinder 132 sequentially passes through the first and second switching valves 221 and 222 and enters the first extraction ejector 110.
In an alternative scheme, the third switching assembly may include a third switching valve and a fourth switching valve 231, one end of the third switching valve is connected to the steam outlet of the steam turbine intermediate pressure cylinder 132, the other end of the third switching valve is connected to one end of the fourth switching valve 231, and the other end of the fourth switching valve 231 is connected to the steam inlet of the second steam extraction injector 120. That is, in the case where both the third and fourth switching valves 231 are opened, the exhaust steam of the steam turbine intermediate pressure cylinder 132 sequentially passes through the third and fourth switching valves 231 and enters the second extraction ejector 120.
In this embodiment, the fifth switch assembly may include a fifth switch valve 251 and a sixth switch valve 252, one end of the fifth switch valve 251 is connected to the steam outlet of the second steam extraction ejector 120, the other end of the fifth switch valve 251 is connected to one end of the sixth switch valve 252, and the other end of the sixth switch valve 252 is connected to the steam inlet of the seawater desalination apparatus 140. That is, when both the fifth switching valve 251 and the sixth switching valve 252 are opened, the exhaust steam of the second steam extraction ejector 120 sequentially passes through the fifth switching valve 251 and the sixth switching valve 252 and enters the seawater desalination apparatus 140.
In one implementation, the sixth switching assembly may include a seventh switching valve, an eighth switching valve 261 and a ninth switching valve, one end of the seventh switching valve is connected to the steam outlet of the steam turbine intermediate pressure cylinder 132, the other end of the seventh switching valve is connected to one end of the eighth switching valve 261, the other end of the eighth switching valve 261 is connected to one end of the ninth switching valve, and the other end of the ninth switching valve is connected to the steam inlet of the seawater desalination apparatus 140. That is, in a case where the seventh switching valve, the eighth switching valve 261 and the ninth switching valve are all opened, the exhaust steam of the steam turbine intermediate pressure cylinder 132 sequentially passes through the seventh switching valve, the eighth switching valve 261 and the ninth switching valve to enter the seawater desalination apparatus 140.
In a further technical scheme, the first switch valve 221, the third switch valve and the seventh switch valve may be the same switch valve, and one switch valve is used to control the exhaust steam of the steam turbine intermediate pressure cylinder 132 to enter the first steam extraction ejector 110, enter the seawater desalination device 140 and enter the second steam extraction ejector 120, so that the number of the switch valves used can be effectively reduced.
In an alternative scheme, the sixth switch valve 252 and the ninth switch valve may be the same switch valve, and the number of the switch valves may be effectively reduced by using one switch valve to control the steam exhausted from the steam turbine intermediate pressure cylinder 132 to enter the seawater desalination apparatus 140 or to control the steam exhausted from the second steam extraction ejector 120 to enter the seawater desalination apparatus 140.
In a specific working process, as shown in fig. 1, when a generator set in a coal-fired power generation device is in a low-load operation, the first switching assembly 210, the first switching valve 221, the second switching valve 222, the fifth switching valve 251, the eighth switching valve 261 and the seventh switching assembly 270 are opened, exhaust steam of reheated steam of the boiler 131 enters the first extraction ejector 110 through the first switching assembly 210, exhaust steam of the turbine intermediate pressure cylinder 132 enters the first extraction ejector 110 through the first switching valve 221 and the second switching valve 222 in sequence, the exhaust steam of the reheated steam of the boiler 131 and exhaust steam of the turbine intermediate pressure cylinder 132 enter the first extraction ejector 110 through the first switching valve 221 and the second switching valve 222 in sequence, the exhaust steam of the turbine intermediate pressure cylinder 132 are mixed in the first extraction ejector 110 and then supplied to the seawater device 140, and the exhaust steam of the turbine intermediate pressure cylinder 132 supplies steam to the heat supply device 150 for desalination through the first switching valve 221, the eighth switching valve 261, the fifth switching valve 251 and the seventh switching assembly 270 in sequence.
Under the condition that a generator set in the coal-fired power generation device operates at medium load, the first switch valve 221, the eighth switch valve 261, the sixth switch valve 252, the fourth switch component 240, the fourth switch valve 231 and the seventh switch component 270 are opened, the exhaust steam of the steam turbine intermediate pressure cylinder 132 sequentially passes through the first switch valve 221, the eighth switch valve 261 and the sixth switch valve 252 to supply steam to the seawater desalination device 140, the exhaust steam of the steam turbine intermediate pressure cylinder 132 sequentially passes through the first switch valve 221 and the fourth switch valve 231 to enter the second steam extraction ejector 120, the exhaust steam of the sixth stage of the steam turbine low pressure cylinder 133 sequentially passes through the fourth switch valve 221 and the fourth switch valve 231 to enter the second steam extraction ejector 120, and the exhaust steam of the steam turbine intermediate pressure cylinder 132 and the exhaust steam of the sixth stage of the steam turbine low pressure cylinder 133 are mixed in the second steam extraction ejector 120 and then supply steam to the heat supply device 150 through the seventh switch component 270.
Under the condition that a generator set in the coal-fired power generation device runs at a high load, the first switch valve 221, the fourth switch valve 231, the fourth switch component 240, the fifth switch valve 251, the sixth switch valve 252 and the seventh switch component 270 are opened, the exhaust steam of the steam turbine intermediate pressure cylinder 132 enters the second steam extraction ejector 120 through the first switch valve 221 and the fourth switch valve 231 in sequence, the sixth-stage steam extraction and exhaust steam of the steam turbine low pressure cylinder 133 enters the second steam extraction ejector 120 through the fourth switch component 240, the exhaust steam of the steam turbine intermediate pressure cylinder 132 and the sixth-stage steam extraction and exhaust steam of the steam turbine low pressure cylinder 133 are mixed in the second steam extraction ejector and then supply steam to the seawater desalination device 140 through the fifth switch valve 251 and the sixth switch valve 252 in sequence, the exhaust steam of the turbine intermediate pressure cylinder 132 and the exhaust steam of the sixth stage of the turbine low pressure cylinder 133 are mixed in the second bleed air ejector and then supplied to the heating apparatus 150 through the seventh switching element 270.
In this application, the thermoelectric water generation system may further include a plurality of control devices, and the opening degrees of the respective switching assemblies and the switching valves are controlled by the control devices, respectively, to control the amount of exhaust steam.
In this embodiment, the steam inlet end of the first steam extraction ejector 110 may be provided with a temperature sensor and a pressure sensor, the steam outlet end of the first steam extraction ejector 110 may be provided with a temperature sensor and a pressure sensor, the steam inlet end of the second steam extraction ejector 120 may be provided with a temperature sensor and a pressure sensor, and the steam outlet end of the second steam extraction ejector 120 may be provided with a temperature sensor and a pressure sensor. The temperature and the pressure of the steam entering the first steam extraction ejector 110 and the second steam extraction ejector 120 and the steam output by the first steam extraction ejector 110 and the second steam extraction ejector 120 can be monitored through a temperature sensor and a pressure sensor, and whether the pressure and the temperature of the steam output by the first steam extraction ejector 110 and the second steam extraction ejector 120 are the temperature and the pressure of the steam supply required by the seawater desalination device 140 or not is judged. The pressure of the steam can be adjusted by controlling the opening degree of each switch component and each switch valve.
Further, check valves may be provided at the reheat steam exhaust port of the boiler 131, the exhaust port of the intermediate turbine cylinder 132, and the sixth stage steam extraction and exhaust port of the low turbine cylinder 133, respectively, to prevent reverse flow of exhaust steam.
In the embodiments of the present application, the difference between the embodiments is described in detail, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A cogeneration system, comprising: first extraction of vapour ejector and second extraction of vapour ejector, wherein:
the steam inlet end of the first steam extraction ejector is connected with one end of a first switch assembly, the other end of the first switch assembly is connected with a reheat steam exhaust port of a boiler of the coal-fired power generation device, the steam inlet end of the first steam extraction ejector is connected with one end of a second switch assembly, the other end of the second switch assembly is connected with a steam exhaust port of a steam turbine intermediate pressure cylinder of the coal-fired power generation device, and the steam outlet end of the first steam extraction ejector is connected with the steam inlet end of the seawater desalination device;
the steam inlet end of the second steam extraction ejector is connected with one end of a third switch component, the other end of the third switch component is connected with a steam exhaust port of a steam turbine intermediate pressure cylinder, the steam inlet end of the second steam extraction ejector is connected with one end of a fourth switch component, the other end of the fourth switch component is connected with a sixth-stage steam extraction and steam exhaust port of a steam turbine low pressure cylinder of the coal-fired power generation device, the steam outlet end of the second steam extraction ejector is connected with one end of a fifth switch component, and the other end of the fifth switch component is connected with the steam inlet end of the seawater desalination device.
2. A cogeneration system according to claim 1, further comprising a sixth switch assembly, one end of said sixth switch assembly being connected to a steam outlet of said turbine intermediate pressure cylinder, and the other end thereof being connected to a steam inlet of said seawater desalination plant.
3. A cogeneration system of heat and power as claimed in claim 2, further comprising a seventh switching assembly, wherein one end of said seventh switching assembly is connected to a connection point of the steam outlet end of said second steam extraction ejector and said fifth switching assembly, and the other end is connected to the steam inlet end of the heating apparatus.
4. A cogeneration system according to claim 3, wherein said second switch assembly comprises a first switch valve and a second switch valve, one end of said first switch valve is connected to a steam discharge port of said turbine intermediate pressure cylinder, the other end thereof is connected to one end of said second switch valve, and the other end thereof is connected to a steam inlet end of said first steam extraction ejector.
5. A cogeneration system according to claim 4, wherein said third switch assembly comprises a third switch valve and a fourth switch valve, one end of said third switch valve is connected to a steam outlet of said intermediate pressure cylinder of said steam turbine, the other end of said third switch valve is connected to one end of said fourth switch valve, and the other end of said fourth switch valve is connected to a steam inlet of said second steam extraction ejector.
6. The cogeneration system of claim 5, wherein the fifth switch assembly comprises a fifth switch valve and a sixth switch valve, one end of the fifth switch valve is connected with the steam outlet end of the second steam extraction ejector, the other end of the fifth switch valve is connected with one end of the sixth switch valve, and the other end of the sixth switch valve is connected with the steam inlet end of the seawater desalination device.
7. A cogeneration system according to claim 6, wherein said sixth switching assembly comprises a seventh switching valve, an eighth switching valve and a ninth switching valve, one end of said seventh switching valve is connected to the steam outlet of said steam turbine intermediate pressure cylinder, the other end is connected to one end of said eighth switching valve, the other end of said eighth switching valve is connected to one end of said ninth switching valve, and the other end of said ninth switching valve is connected to the steam inlet of said seawater desalination device.
8. A cogeneration system according to claim 7, wherein said first, third and seventh on-off valves are the same on-off valve.
9. A cogeneration system according to claim 8, wherein said sixth and ninth on-off valves are the same on-off valve.
10. The cogeneration system of claim 1, wherein the steam inlet end of the first steam extraction ejector is provided with a temperature sensor and a pressure sensor, the steam outlet end of the first steam extraction ejector is provided with a temperature sensor and a pressure sensor, the steam inlet end of the second steam extraction ejector is provided with a temperature sensor and a pressure sensor, and the steam outlet end of the second steam extraction ejector is provided with a temperature sensor and a pressure sensor.
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| CN202122909523.6U CN216518190U (en) | 2021-11-24 | 2021-11-24 | Combined heat and power generation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856739A (en) * | 2022-05-24 | 2022-08-05 | 华能国际电力股份有限公司 | Hydrothermal electricity cogeneration system based on low-temperature multi-effect evaporation technology |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856739A (en) * | 2022-05-24 | 2022-08-05 | 华能国际电力股份有限公司 | Hydrothermal electricity cogeneration system based on low-temperature multi-effect evaporation technology |
| CN114856739B (en) * | 2022-05-24 | 2023-08-08 | 华能国际电力股份有限公司 | Water-heat cogeneration system based on low-temperature multi-effect evaporation technology |
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Address after: 061113 office building of Bohai new area power plant, Cangzhou City, Hebei Province Patentee after: Guoneng Hebei Cangdong Power Generation Co.,Ltd. Address before: 061113 Bohai new area, Cangzhou City, Hebei Province Patentee before: HEBEI GUOHUA CANGDONG POWER GENERATION Co.,Ltd. |