CN115853612B - Power generation mode and bypass mode switching control method of LNG cold energy power generation device - Google Patents
Power generation mode and bypass mode switching control method of LNG cold energy power generation device Download PDFInfo
- Publication number
- CN115853612B CN115853612B CN202211692117.1A CN202211692117A CN115853612B CN 115853612 B CN115853612 B CN 115853612B CN 202211692117 A CN202211692117 A CN 202211692117A CN 115853612 B CN115853612 B CN 115853612B
- Authority
- CN
- China
- Prior art keywords
- valve
- turbine
- power generation
- lng
- bypass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010248 power generation Methods 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 32
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims abstract description 85
- 239000001294 propane Substances 0.000 claims abstract description 44
- 230000001105 regulatory effect Effects 0.000 claims abstract description 18
- 230000008676 import Effects 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 22
- 239000006200 vaporizer Substances 0.000 claims description 21
- 239000013535 sea water Substances 0.000 claims description 16
- 239000003949 liquefied natural gas Substances 0.000 description 65
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 14
- 230000008569 process Effects 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 7
- 239000003345 natural gas Substances 0.000 description 7
- 238000002309 gasification Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention relates to a control method for switching a power generation mode and a bypass mode of an LNG cold energy power generation device, which comprises the following specific steps of: determining that the LNG cold energy power generation device is in a stable bypass mode; reducing LNG import flow; closing the bypass valve of the propane pump and the turbine big bypass valve, and opening the turbine small bypass valve; adjusting the shell pressure of the LNG gasifier E2 by using a turbine small bypass valve; opening a flow regulating valve to start a propane circulating pump at the minimum flow; the valve is switched to PID control; gradually opening an LNG inlet flow control valve, and opening a turbine inlet guide vane IGV and a turbine starting valve, wherein the turbine starting valve is controlled by PID; the turbine starting valve is fully opened, and the turbine inlet quick closing valve is slowly opened; closing a turbine starting valve and a turbine small bypass valve; PID control is adopted for the turbine inlet guide vane IGV, and the operation in a power generation mode is waited to be stable.
Description
Technical Field
The invention relates to a power generation mode and bypass mode switching control method of an LNG cold energy power generation device, and belongs to the technical field of cold energy power generation.
Background
The natural gas is compressed and cooled to its condensation point temperature to form liquefied natural gas (LiquefiedNatural Gas, LNG for short) to save materials and space during storage and transportation. In the process of converting liquid state into normal temperature gas state, LNG can release a large amount of cold energy outwards, and one way of reasonably recycling the part of energy is cold energy power generation.
Thanks to the mature and simple process flow, the system has high reliability and low energy consumption, and the Rankine cycle method is one of the cold energy power generation technologies commonly used at present. The LNG receives heat from the seawater via the intermediate heat transfer medium propane to effect vaporization. The propane liquefied by absorbing cold energy is heated and gasified by seawater and then drives a turbine connected with a generator set, so that cold energy power generation is realized.
Although the existing LNG cold energy power generation device realizes the combination of the gasification and the power generation functions of LNG, a switching control flow between two operation modes is lacked, so that a detailed and reasonable power generation mode and bypass mode switching control scheme is needed.
Disclosure of Invention
Aiming at the problems, the invention provides a power generation mode and bypass mode switching control method of an LNG cold energy power generation device, which is used for describing the valve opening and closing sequence, the opening and important equipment inlet and outlet technological parameters in the switching process in detail, so that the power generation mode and bypass mode switching can be successfully and safely completed.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the control method for switching the power generation mode to the bypass mode and the control method for switching the bypass mode to the power generation mode comprise the following steps:
s1: determining that the LNG cold energy power generation device is in a stable bypass mode;
s2: reducing LNG import flow;
s3: closing the bypass valve of the propane pump and the turbine big bypass valve, and opening the turbine small bypass valve;
s4: adjusting the shell pressure of the LNG gasifier E2 by using a turbine small bypass valve;
s5: opening a flow regulating valve to start a propane circulating pump at the minimum flow;
s6: the valve is switched to PID control;
s7: gradually opening an LNG inlet flow control valve, and opening a turbine inlet guide vane IGV and a turbine starting valve, wherein the turbine starting valve is controlled by PID;
s8: the turbine starting valve is fully opened, and the turbine inlet quick closing valve is slowly opened;
s9: closing a turbine starting valve and a turbine small bypass valve;
s10: PID control is adopted for the turbine inlet guide vane IGV, and the operation in a power generation mode is waited to be stable;
the control method for switching the power generation mode to the bypass mode comprises the following steps:
step 1: determining that the LNG cold energy power generation device is in a stable power generation mode;
step 2: reducing LNG import flow;
step 3: slowly closing the turbine inlet guide vane IGV and opening a turbine small bypass valve;
step 4: closing a turbine inlet quick closing valve, a liquid level regulating valve of the intermediate medium gasifier E1 and a propane circulating pump;
step 5: opening the propane pump bypass valve before the level of the intermediate medium gasifier E1 reaches 0;
step 6: opening the turbine large bypass valve, and starting to close the turbine small bypass valve after confirming that the valve is fully opened;
step 7: gradually opening the LNG inlet flow control valve;
step 8: the waiting bypass mode operation is stable.
In the method for controlling switching between the power generation mode and the bypass mode, preferably, the LNG cold energy power generation device is in a stable bypass mode means: the LNG inlet flow control valve, the seawater outlet flow control valve, the turbine large bypass valve and the propane pump bypass valve are opened; the turbine small bypass valve, the turbine starting valve, the turbine inlet quick closing valve, the turbine inlet guide vane IGV, the bleeder valve, the flow regulating valve, the propane circulation pump and the liquid level regulating valve of the intermediate medium gasifier E1 are closed.
In the method for controlling the switching between the power generation mode and the bypass mode, preferably, in S3, the opening of the turbine small bypass valve is adjusted to 5-15%.
Preferably, the step S4 specifically includes the following steps:
the valve opening of the small bypass valve of the S41 turbine is kept 5-15 percent until the pressure of the LNG gasifier E2 becomes 0.25-0.75barg;
s42, when the pressure of the LNG vaporizer E2 reaches 0.25-0.75barg, the control is switched to PID control, and the set pressure of the LNG vaporizer E2 is 0.1-0.3barg;
s43 gradually reduces the LNG vaporizer E2 set-up pressure to 0.1-0.3barg.
In the method for controlling the switching between the power generation mode and the bypass mode, preferably, in S6, the opening of the liquid level regulating valve of the intermediate medium gasifier E1 is regulated to 30-60%, and after the opening of the valve reaches 30-60%, the switching valve is controlled to be PID control.
In the method for controlling the switching between the power generation mode and the bypass mode, preferably, in S7, the opening degree of the turbine inlet guide vane IGV is set to 5-15%, and the opening degree of the turbine starting valve is set to 30-60%.
In the method for controlling switching between the power generation mode and the bypass mode, preferably, the LNG cold energy power generation device is in a stable power generation mode: the LNG inlet flow control valve, the seawater outlet flow control valve, the turbine inlet quick closing valve, the turbine inlet guide vane IGV, the flow control valve, the intermediate medium gasifier E1 liquid level control valve and the propane circulating pump are opened; the turbine starting valve, the turbine small bypass valve, the turbine large bypass valve, the relief valve and the propane pump bypass valve are closed.
Due to the adoption of the technical scheme, the invention has the following advantages:
the control method has the advantages that equipment such as auxiliary pipelines and the like are considered besides corresponding pipelines and valves for power generation and bypass of the main process flow. Through describing the valve opening and closing sequence, the opening and the important equipment inlet and outlet technological parameters in the switching process in detail, the power generation mode and the bypass mode can be switched smoothly and safely.
Drawings
Fig. 1 is a schematic system diagram of an LNG cold energy generating device according to an embodiment of the present invention;
the figures are marked as follows:
a 1-LNG inlet; 2-a normal temperature natural gas outlet; 3-seawater inlet; 4-a seawater outlet; a 5-LNG vaporizer E2; 6-intermediate medium gasifier e1+natural gas heater E3; 7-a generator; 8-turbine; a 9-propane circulation pump; 10-turbine inlet guide vane IGV; 11-turbine inlet quick-closing valve; 12-a bleeder valve; 13-turbine start-up valve; 14-turbine small bypass valve; 15-turbine large bypass valve; 16-a flow regulating valve; 17-E1 liquid level regulating valve; 18-propane pump bypass valve; 19-a seawater outlet flow control valve; 20-LNG import flow control valve.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are intended to be within the scope of the present disclosure.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," "third," "fourth," and the like as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
The invention aims at the problems of the prior LNG cold energy power generation device that the combination of the gasification and the power generation functions of LNG is realized, but the problem of how to realize the switching control flow between two operation modes is lacking, and provides a power generation mode and bypass mode switching control method of the LNG cold energy power generation device.
As shown in fig. 1, the LNG cold energy power generation device using the rankine cycle method mainly includes an LNG vaporizer E25, an intermediate medium vaporizer e1+natural gas heater E36, a turbine 8, a generator 7, and a propane circulation pump 9.
In the LNG cold energy power generation device, an intermediate medium gasifier E1+a natural gas heater E36 usually appears as a whole, so that the temperature reduction caused by the repeated inlet and outlet of seawater is avoided, and the heat exchange effect is influenced.
The LNG cold energy power generation device has two conventional operation modes, namely a power generation mode and a bypass mode.
In the power generation mode, the turbine 8 and the propane circulation pump 9 operate, and the system simultaneously realizes the power generation and LNG gasification functions. The liquid propane in the shell side of the intermediate medium gasifier E1 is heated and gasified by the tube side seawater, and the gasified propane steam is sent to the inlet of the turbine 8 to drive the turbine 8 to generate electricity. The propane steam is expanded and then enters the shell side of the LNG vaporizer E25 and is condensed by the tube side LNG, the liquid is cooled and then enters the propane circulation pump 9 through a pipeline, and the liquid is pressurized by the propane circulation pump 9 and then is sent into the shell side of the intermediate medium vaporizer E1 again. LNG is converted to natural gas by heating with propane in E2, then sent to the natural gas heater E3 shell side, heated to a specified temperature by tube side seawater, and then exported.
In the power generation mode, the liquid level of the intermediate medium vaporizer E1, the LNG vaporizer E25 shell pressure, the propane circulation pump 9 and the turbine 8 are controlled.
In bypass mode, the turbine 8 and propane circulation pump 9 are not running and the system only performs LNG vaporization. The liquid propane in the shell side of the intermediate medium gasifier E1 is heated and gasified by the tube side seawater, the propane steam then directly enters the shell side of the LNG gasifier E25 and is condensed, and then the liquid propane directly enters the E1 shell side to complete one cycle.
In bypass mode, the propane completes a natural circulation from E2 to E1 by gravity, so the E2 arrangement is vertically taller than E1. The propane circulation loop is not controlled except for emergency stop, and only LNG and seawater flows are controlled.
The existing LNG cold energy power generation device realizes the combination of the gasification and power generation functions of LNG, but lacks how to realize a switching control flow between two operation modes.
The invention provides a switching control method for a power generation mode and a bypass mode of an LNG cold energy power generation device, aiming at the problem of how to realize switching control flow between two operation modes in the existing LNG cold energy power generation device.
Fig. 1 is a schematic diagram of a system structure of an LNG cold energy generating device according to an embodiment of the present invention, in this embodiment, the LNG cold energy generating device has two operation modes, namely a generating mode and a bypass mode.
The specific embodiment provides a control scheme for switching from a bypass mode to a power generation mode by adopting the LNG cold energy power generation device under the condition of a process value of a certain case, which comprises the following specific steps:
1. ensuring the cold energy generating device to be in a stable state under the bypass mode, namely, determining the opening and closing states of the following valves: the LNG inlet flow control valve 20, the seawater outlet flow control valve 19, the turbine large bypass valve 15 and the propane pump bypass valve 18 are opened; the turbine small bypass valve 14, the turbine starting valve 13, the turbine inlet quick closing valve 11, the turbine inlet guide vane IGV10, the bleeder valve 12, the flow regulating valve 16, the propane circulation pump 9 and the liquid level regulating valve 17 of the intermediate medium gasifier E1 are closed.
2. The LNG flow rate was adjusted from 205.2 tons/hour down to 80 tons/hour.
3. The propane pump bypass valve 18 is closed.
4. The turbine big bypass valve 15 is completely closed, and the opening of the turbine small bypass valve 14 is adjusted to 10%.
5. The LNG vaporizer E2 shell pressure is regulated in stages 3 by a turbine small bypass valve 14:
A. the valve opening of the turbine small bypass valve 14 is maintained at 10% until the LNG vaporizer E2 pressure becomes 0.5barg;
B. when the LNG vaporizer E2 pressure reaches 0.5barg, the control is switched to PID control; the pressure of the LNG vaporizer E2 was set to 0.2barg;
C. the pressure of LNG vaporizer E2 was set to gradually decrease to 0.2barg.
6. The flow rate regulating valve 16 is opened to start the propane circulation pump 9 at the minimum flow rate.
7. And (3) adjusting the opening of the liquid level adjusting valve 17 of the intermediate medium gasifier E15 to 50%, and after the opening of the valve reaches 50%, controlling the switching valve to PID control.
8. Gradually opening the LNG inlet flow control valve 20 to adjust the flow rate to 205.2 tons/hr;
9. opening the turbine inlet guide vane IGV10, wherein the opening is set to 10%; the turbine starting valve 13 was opened and the opening was set to 50%.
10. The turbine starting valve 13 is controlled by PID:
A. controlling the turbine start valve 13 to maintain the 1 st speed;
B. the turbine start valve 13 is controlled to maintain speed 2.
11. The turbine starting valve 13 is fully opened, and the turbine inlet quick closing valve 11 is slowly opened.
12. The turbine start valve 13 and the turbine small bypass valve 14 are closed.
13. The turbine inlet guide vane IGV10 is PID controlled to control the pressure of the LNG gasifier E2 to 0.2barg.
14. The waiting power generation mode is stable in operation.
The specific embodiment also provides a control scheme for switching from the power generation mode to the bypass mode by adopting the LNG cold energy power generation device, and the specific flow is as follows:
1. the cold energy power generation device is ensured to be in a stable state under the power generation mode, namely the opening and closing states of the following valves are determined: the LNG inlet flow control valve 20, the seawater outlet flow control valve 19, the turbine inlet quick closing valve 11, the turbine inlet guide vane IGV10, the flow control valve 16, the liquid level control valve 17 of the intermediate medium gasifier E1 and the propane circulation pump 9 are opened; the turbine start valve 13, the turbine small bypass valve 14, the turbine large bypass valve 15, the bleed valve 12 and the propane pump bypass valve 18 are closed.
2. The LNG flow rate was adjusted from 205.2 tons/hour down to 100 tons/hour.
3. The turbine inlet guide vane IGV10 is slowly closed and the turbine small bypass valve 14 is opened. To avoid the LNG gasifier E2 shell becoming vacuum, the opening of the turbine inlet guide vane IGV10 and the turbine small bypass valve 14 are balanced.
4. The turbine inlet quick shut-off valve 11 is closed.
5. The liquid level regulating valve 17 of the intermediate medium vaporizer E1 is closed, the propane circulation pump 9 is closed, and the propane pump bypass valve 18 is opened before the liquid level of the intermediate medium vaporizer E1 reaches 0.
6. The turbine large bypass valve 15 is opened, and after confirming that the valve is fully opened, the turbine small bypass valve 14 is started to be closed.
7. The LNG inlet flow control valve 20 was gradually opened to achieve a flow rate of 205.2 tons/hr before the liquid level in LNG vaporizer E2 reached 0.
8. The waiting bypass mode operation is stable.
The control method has the advantages that equipment such as auxiliary pipelines and the like are considered besides corresponding pipelines and valves for power generation and bypass of the main process flow. Through describing the valve opening and closing sequence, the opening and the important equipment inlet and outlet technological parameters in the switching process in detail, the power generation mode and the bypass mode can be switched smoothly and safely.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. The control method for switching the power generation mode to the bypass mode comprises the following steps:
s1: determining that the LNG cold energy power generation device is in a stable bypass mode;
s2: reducing LNG import flow;
s3: closing the bypass valve of the propane pump and the turbine big bypass valve, and opening the turbine small bypass valve;
s4: adjusting the shell pressure of the LNG gasifier E2 by using a turbine small bypass valve;
s5: opening a flow regulating valve to start a propane circulating pump at the minimum flow;
s6: the valve is switched to PID control;
s7: gradually opening an LNG inlet flow control valve, and opening a turbine inlet guide vane IGV and a turbine starting valve, wherein the turbine starting valve is controlled by PID;
s8: the turbine starting valve is fully opened, and the turbine inlet quick closing valve is slowly opened;
s9: closing a turbine starting valve and a turbine small bypass valve;
s10: PID control is adopted for the turbine inlet guide vane IGV, and the operation in a power generation mode is waited to be stable;
the control method for switching the power generation mode to the bypass mode comprises the following steps:
step 1: determining that the LNG cold energy power generation device is in a stable power generation mode;
step 2: reducing LNG import flow;
step 3: slowly closing the turbine inlet guide vane IGV and opening a turbine small bypass valve;
step 4: closing a turbine inlet quick closing valve, a liquid level regulating valve of the intermediate medium gasifier E1 and a propane circulating pump;
step 5: opening the propane pump bypass valve before the level of the intermediate medium gasifier E1 reaches 0;
step 6: opening the turbine large bypass valve, and starting to close the turbine small bypass valve after confirming that the valve is fully opened;
step 7: gradually opening the LNG inlet flow control valve;
step 8: waiting for the bypass mode to run stably;
the LNG cold energy generating device being in a stable bypass mode means that: the LNG inlet flow control valve, the seawater outlet flow control valve, the turbine large bypass valve and the propane pump bypass valve are opened; the turbine small bypass valve, the turbine starting valve, the turbine inlet quick closing valve, the turbine inlet guide vane IGV, the bleeder valve, the flow regulating valve, the propane circulation pump and the liquid level regulating valve of the intermediate medium gasifier E1 are closed;
s3, adjusting the opening of the turbine small bypass valve to 5-15%;
s4 specifically comprises the following steps:
the valve opening of the small bypass valve of the S41 turbine is kept 5-15 percent until the pressure of the LNG gasifier E2 becomes 0.25-0.75barg;
s42, when the pressure of the LNG vaporizer E2 reaches 0.25-0.75barg, the control is switched to PID control, and the set pressure of the LNG vaporizer E2 is 0.1-0.3barg;
s43 gradually reduces the LNG vaporizer E2 set-up pressure to 0.1-0.3barg.
2. The method according to claim 1, wherein in S6, the opening of the liquid level control valve of the intermediate medium gasifier E1 is adjusted to 30-60%, and the switching valve is controlled to PID control after the opening of the valve reaches 30-60%.
3. The power generation mode and bypass mode switching control method according to claim 1, characterized in that in S7, the opening degree of the turbine inlet guide vane IGV is set to 5-15%, and the opening degree of the turbine starting valve is set to 30-60%.
4. The power generation mode and bypass mode switching control method according to claim 1, wherein the LNG cold energy power generation device being in the stable power generation mode means: the LNG inlet flow control valve, the seawater outlet flow control valve, the turbine inlet quick closing valve, the turbine inlet guide vane IGV, the flow control valve, the intermediate medium gasifier E1 liquid level control valve and the propane circulating pump are opened; the turbine starting valve, the turbine small bypass valve, the turbine large bypass valve, the relief valve and the propane pump bypass valve are closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211692117.1A CN115853612B (en) | 2022-12-28 | 2022-12-28 | Power generation mode and bypass mode switching control method of LNG cold energy power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211692117.1A CN115853612B (en) | 2022-12-28 | 2022-12-28 | Power generation mode and bypass mode switching control method of LNG cold energy power generation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115853612A CN115853612A (en) | 2023-03-28 |
| CN115853612B true CN115853612B (en) | 2024-04-09 |
Family
ID=85655306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211692117.1A Active CN115853612B (en) | 2022-12-28 | 2022-12-28 | Power generation mode and bypass mode switching control method of LNG cold energy power generation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115853612B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150127935A (en) * | 2014-05-07 | 2015-11-18 | 현대중공업 주식회사 | A Treatment System Of Liquefied Gas |
| CN105507969A (en) * | 2015-12-16 | 2016-04-20 | 中国海洋石油总公司 | Energy recycling system by using LNG liquifying factory and application method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102672502B1 (en) * | 2021-12-20 | 2024-06-05 | (주)거산 | Manufacturing Apparatus for Unplasticized PVC Pipe |
-
2022
- 2022-12-28 CN CN202211692117.1A patent/CN115853612B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150127935A (en) * | 2014-05-07 | 2015-11-18 | 현대중공업 주식회사 | A Treatment System Of Liquefied Gas |
| CN105507969A (en) * | 2015-12-16 | 2016-04-20 | 中国海洋石油总公司 | Energy recycling system by using LNG liquifying factory and application method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115853612A (en) | 2023-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109281719B (en) | Hybrid power generation system | |
| US20040042579A1 (en) | Nuclear power plant and method of operating the same | |
| CN109424437B (en) | Control device, gas turbine combined cycle power generation system and control method | |
| CN109057897B (en) | Steam source switching method for thermal power generating unit FCB | |
| US20050013402A1 (en) | Method of operating a nuclear power plant | |
| CN115853612B (en) | Power generation mode and bypass mode switching control method of LNG cold energy power generation device | |
| CN116816499A (en) | Distributed energy power generation system and control method thereof | |
| CN114109764B (en) | Supercritical carbon dioxide cycle working medium replacement and pressurization system and method | |
| CN113266441B (en) | Method and system for controlling starting operation of supercritical carbon dioxide recompression power generation system | |
| KR101994097B1 (en) | Energy storage power generating system and method by liquefaction, regasification and expansion process of air | |
| JP2020133581A (en) | Combined cycle power generation plant and operation method therefor | |
| EP3306044A1 (en) | Fast frequency response systems with thermal storage for combined cycle power plants | |
| WO2023234064A1 (en) | Plant for liquefying/gasifying gas and method for liquefying/gasifying gas | |
| CN220471596U (en) | Heat regeneration system suitable for high-temperature gas cooled reactor external heat supply nuclear power unit | |
| JP2019173696A (en) | Combined cycle power generation plant, and operation method of the same | |
| CN114922705B (en) | System and method for circulating split-flow repressing supercritical carbon dioxide | |
| JPH04140699A (en) | Nuclear reactor electric power generator | |
| EP4350213A1 (en) | Power generation facility | |
| Radin et al. | Effectiveness of large power reduction for a combined-cycle power plant with several gas turbines and one steam turbine and some of the shutdown equipment used as hot reserve | |
| CN117889349A (en) | LNG gasification system for generating power by utilizing cold energy and LNG receiving station | |
| Berezinets et al. | Technology used to operate the 300-MW power unit topped with a GTE-110 gas turbine | |
| CN117231975A (en) | Control method for water supply temperature of high-temperature gas cooled reactor | |
| CN117267700A (en) | Thermodynamic system and method for improving variable load capacity of supercritical thermal power generating unit | |
| CN114198738A (en) | High-temperature gas cooled reactor feed water heating system | |
| CN115264487A (en) | Industrial steam production system of nuclear power unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |