CN210488754U - Optimization alarm system and automatic alarm device based on clean flue gas CEMS system - Google Patents
Optimization alarm system and automatic alarm device based on clean flue gas CEMS system Download PDFInfo
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Abstract
The utility model discloses an optimization alarm system and an automatic alarm device based on a clean flue gas CEMS system, which relates to the technical field of a continuous flue gas monitoring system, solves the problems of manual supervision and abnormal detection data, and comprises a power supply detection module, a DCS signal processing module and an alarm module; the alarm device also comprises an alarm mechanism which is connected with the alarm module and used for receiving and responding to the alarm signal. The utility model discloses utilize DCS signal processing module to carry out the analysis to flue gas parameter data to control alarm module produces alarm signal, and then is convenient for remind the staff fast to catch up with the on-the-spot maintenance and handle the abnormal conditions, also can be convenient for the staff to carrying out the operating mode adjustment when clean flue gas emission is unusual simultaneously, has effectively ensured the ultralow emission of environmental protection.
Description
Technical Field
The utility model belongs to the technical field of the continuous monitoring system of flue gas technique and specifically relates to an optimize alarm system and autoalarm based on clean flue gas CEMS system is related to.
Background
The continuous flue gas monitoring system is called CEMS for short, can automatically collect, analyze and store data such as pollutants (sulfur dioxide SO2, nitrogen oxides NOX and particulate dust) at a waste gas discharge port of an enterprise, flue pressure, humidity, flue temperature, flow rate, oxygen content and the like, realizes automatic, real-time and accurate monitoring of the waste gas discharge condition of a pollution discharge enterprise and the operation state of treatment facilities, is an indispensable part in a flue gas desulfurization system of a thermal power plant, and also is an important guarantee for the good work of the flue gas desulfurization system, and CEMS data is a basis for pollution discharge cost accounting, environmental protection electricity price and ultralow electricity price assessment of an environmental protection department.
The CEMS system mainly comprises a flue gas analyzer, a particulate matter detection subsystem, a flue gas parameter measurement system and a data processing submodule, referring to the attached figure 3, in the working process, the flue gas in the flue is collected by a flue gas collecting probe, an integrated temperature and pressure flow sensor and a sampling heat tracing device which are fixed on the flue, the collected flue gas is conveyed to a gas path distribution module for gas distribution after impurity precipitation, moisture and impurities are removed by a dust removal device and a pretreatment system, the distributed sample gas is conveyed to the flue gas analyzer at constant flow, the flue gas analyzer and the particulate matter are used for analyzing the content and concentration of the corresponding gas and particulate matter by the particulate matter detection subsystem and converting the content and concentration into electric signals to be conveyed to the data processing submodule, meanwhile, the flue gas parameter measurement system is used for measuring the flow rate, oxygen amount, temperature, humidity and pressure of the sample gas, and the signals are conveyed to the data processing submodule, the data processing submodule is used for collecting, arranging and storing pollutant data, the working state of the instrument and equipment is monitored, and detected data are transmitted to the operator station, so that the operator can visually observe the content, concentration and flow of the smoke on the picture of the operator station.
After the current clean flue gas CEMS system is put into use, the following problems can exist in the operation process:
1. the power reliability is relatively poor, the clean flue gas CEMS cabin of desulfurization export for installing clean flue gas CEMS system is the double-circuit power supply, but some stand-by power supply is unreliable, and the industrial computer falls the electricity and makes D lose based on the optimization alarm system of clean flue gas CEMS system and automatic alarm device S software biography data acquisition appearance signal, environmental protection platform data disappearance, and the operation personnel often can't discover in the very first time, leads to the data deletion phenomenon more generally.
2. The emission concentration exceeding risk pre-control lags, the mode that the environment-friendly facility operating personnel adjust the operation index is to adjust according to the reduced concentration of a main discharge port on the picture of an operator station (connected with a clean flue gas CEMS system), if the instantaneous data exceed the standard, no alarm appears on the picture of the operator station, the exceeding risk is easily caused, and the pre-control means is needed to be perfect.
3. The occurrence of the dead halt phenomenon causes the response lag of the abnormal (zero or maintained) clean flue gas parameters, when the data processing submodule detects that the parameters of the flue gas flow are abnormal or the fault of the interface machine causes the SIS data to go straight, the operator can not find the abnormal data in time, the abnormal data can be uploaded to an environment-friendly platform and an environment-friendly data management system of a group company by the data processing submodule, and the potential environmental hazard exists.
4. Sulfur dioxide emission concentration zero value appears after the ultralow emission transformation is completed, and after the ultralow emission transformation is completed, the high-efficiency desulfurization facility enables the sulfur dioxide emission concentration zero value to appear on the environment-friendly platform by accident, and the environment-friendly department considers the sulfur dioxide emission concentration zero value as abnormal data in the electricity price accounting.
The main reason for the above problems is that the CEMS system is often manually supervised by a professional in auxiliary control of thermal engineering of the power plant, when data has problems, the problems are difficult to report to the environment-friendly platform due to human factors, and finally the problems occur in the finally monitored data, and many power plants neglect the optimization work of the CEMS system and make great benefits of the work, so the monitoring mode of the CEMS system still needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an automatic monitoring, automatic alarm, data transmission reliability is high, data loss or data abnormal conditions are little, the reliability is high optimize alarm system and autoalarm based on clean flue gas CEMS system.
The utility model discloses a can realize through following technical scheme:
the optimization alarm system and the automatic alarm device based on the clean flue gas CEMS system are arranged in an operator station and used for monitoring flue gas parameters of the CEMS system and power supply conditions of a CEMS system station room, wherein the CEMS system comprises a data processing module for outputting flue gas parameter data, and the data processing module comprises a power supply detection module, a DCS signal processing module and an alarm module;
the power supply detection module is used for detecting the power supply loss condition of the CEMS system station room and outputting a power supply detection signal to the DCS signal processing module;
the DCS signal processing module is connected with the data processing module and the power supply detection module and is used for storing and forwarding the smoke parameter data of the data processing module and the power supply detection signal and outputting a control signal to the alarm module;
the alarm module is connected with the DCS signal processing module and used for receiving the control signal output by the DCS signal processing module and generating an alarm signal corresponding to the control signal;
the alarm device also comprises an alarm mechanism which is connected with the alarm module and used for receiving and responding to the alarm signal.
By adopting the technical scheme, the collected flue gas parameters are collected by the data processing module, the flue gas parameters are stored and analyzed by the DCS signal processing module, meanwhile, the power supply condition of the CEMS system station house is detected by the power supply detection module, when the DCS signal processing module detects that the flue gas parameters are abnormal or the power supply is abnormal, the DCS signal processing module outputs a control signal to the alarm module, and the alarm module outputs an alarm signal. The utility model discloses can upload flue gas parameter data to DCS signal processing module automatically, data transmission's reliability has been ensured, and utilize DCS signal processing module to carry out the automatic storage to flue gas parameter data, the condition of data disappearance has effectively been reduced, utilize DCS signal processing module to carry out the analysis to flue gas parameter data simultaneously, and control alarm module produces alarm signal, and then be convenient for remind the staff fast to arrive at the scene maintenance and handle the abnormal conditions, also can be convenient for the staff to carrying out the operating mode adjustment when clean flue gas is discharged unusually simultaneously, the ultralow emission of environmental protection has effectively been ensured.
Further setting the following steps: the DCS signal processing module comprises a data storage unit and a signal detection unit, the data storage unit is used for receiving and storing the smoke parameter data of the data processing module, and the signal detection unit is used for detecting the smoke parameter data of the data processing module and outputting a control signal to the alarm module.
By adopting the technical scheme, the data storage unit is used for storing the smoke parameter data, and the signal detection unit is used for analyzing the smoke parameter data and outputting the control signal to the alarm module.
Further setting the following steps: the device comprises a signal detection unit, a clean smoke parameter out-of-limit detection part, a clean smoke parameter invalid detection part and a clean smoke parameter holding part.
By adopting the technical scheme, the off-limit detection part, the invalid detection part and the holding part of the clean smoke parameters are utilized to analyze the smoke parameters output by the data processing module respectively, and the conditions of ' off-limit ' of the clean smoke parameters, ' invalid ' of the clean smoke parameters and ' holding ' of the clean smoke parameters ' of the smoke are judged, so that the workers can rapidly identify the abnormal information of different smoke parameter data and process the abnormal conditions.
Further setting the following steps: the alarm mechanism comprises a DCS display screen which is fixed in the operator station and connected with the alarm module.
Through adopting above-mentioned technical scheme, the DCS display screen is convenient for the staff to observe the flue gas parameter data abnormal conditions directly perceivedly.
Further setting the following steps: the alarm mechanism also comprises an acousto-optic alarm which is fixed in the operator station and connected with the alarm module.
Through adopting above-mentioned technical scheme, when flue gas parameter data or CEMS station house power abnormal conditions appear, the acousto-optic warning appearance can send the chimes of doom and produce warning light to realize the function of long-range notice staff to arrive at the scene and handle abnormal conditions.
Further setting the following steps: and a station room power indicator lamp connected with the alarm module is fixed in the operator station.
By adopting the technical scheme, the station house power supply indicator lamp is convenient for a worker to visually judge the power supply condition of the CEMS station house.
Further setting the following steps: the power supply detection module is a voltage sensor.
Through adopting above-mentioned technical scheme, utilize voltage sensor to directly detect the power condition, it is simple and convenient to detect the structure, the later stage maintenance of being convenient for.
Further setting the following steps: and a power loss detector connected with the power detection module is arranged in the CEMS station house.
Through adopting above-mentioned technical scheme, utilize the power loss detector to detect the power condition in CEMS station room to utilize power detection module to carry out record and upload the power condition, realize the automatic monitoring of power, safety and stability more.
Further setting the following steps: the intelligent CEMS system is characterized by further comprising a redundant power supply, wherein the redundant power supply is arranged in the CEMS station room and is connected with the DCS signal processing module.
By adopting the technical scheme, when the power supply of the CEMS station house is abnormal, the standby power supply of the power supply is realized by using the redundant power supply, the normal power supply of the CEMS station house is ensured, the stability is higher, and the condition that the smoke parameters are lost is effectively reduced.
To sum up, the utility model discloses a beneficial technological effect does:
(1) the DCS signal processing module is used for storing and analyzing the flue gas parameter data, so that the reliability of the CEMS system is further improved, the safe and stable operation is guaranteed, the data loss and the data abnormal hidden danger are greatly eliminated, and the guarantee is provided for the pollution discharge cost, the environment-friendly electricity price and the ultra-low electricity price accounting;
(2) the DCS display screen and the acousto-optic alarm instrument are used for alarming data abnormal conditions such as 'CEMS station house power loss', 'clean flue gas parameter data out of limit', 'clean flue gas parameter data invalid' and 'clean flue gas parameter data maintenance', so that automatic alarming is realized, operators can be timely reminded of checking and adjusting, the problems of environmental protection data abnormality, data loss and difficulty in later repair are effectively solved, the operators can be timely reminded of working condition adjustment when the instantaneous concentration of clean flue gas emission is higher, and the environment-friendly ultralow emission is effectively guaranteed;
(3) by adding the redundant power supply in the CEMS station house, the normal power supply of the CEMS station house is ensured, the CEMS station house is more stable, the loss of the smoke parameter data is further reduced, and the smoke parameter data is more accurate and effective.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the signal detection unit logic;
fig. 3 is a schematic view of the overall structure of the prior art.
Reference numerals: 1. a data processing module; 2. a power supply detection module; 3. a DCS signal processing module; 4. an alarm module; 5. an alarm mechanism; 6. a data storage unit; 7. a signal detection unit; 8. a clean flue gas parameter out-of-limit detection part; 9. a purified flue gas parameter invalidation detecting part; 10. a clean flue gas parameter holding section; 11. a DCS display screen; 12. a sound and light alarm; 13. a station power supply indicator lamp; 14. a power loss detector; 15. redundant power supplies.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses an optimize alarm system and autoalarm based on clean flue gas CEMS system, including power detection module 2, DCS signal processing module 3, alarm module 4, alarm mechanism 5, set up in the operator station, be used for monitoring CEMS system's flue gas parameter data and the power condition of CEMS system station room, CEMS system is including the data processing module 1 who is used for exporting flue gas parameter data, data processing module 1 adopts is that the model is MGA-3000 multicomponent gas analysis appearance, MGA-3000 multicomponent gas analysis appearance collects the pulse signal that the flue gas measuring apparatu sent after, its inside can produce different amplitudes, compare through the amplitude signal rather than inside settlement, reach flue gas concentration in the flue gas, flue gas temperature, flue gas velocity of flow etc. flue gas parameter data's accurate measurement value.
And the power supply detection module 2 is used for detecting the power supply loss condition of the CEMS system station room and outputting a power supply detection signal to the DCS signal processing module 3, and the power supply detection module 2 adopts a voltage sensor with the model of MIK-DJV. The CEMS station house is internally provided with a power loss detector 14 connected with the power detection module 2, and the power loss detector 14 adopts a micro-power consumption voltage detector of a model MCP 112. Utilize power loss detector 14 to detect the power condition of CEMS station room to utilize power detection module 2 to carry out record and upload the power condition, realize the automatic monitoring of power, it is more safe and stable.
A station power indicator 13 connected with the alarm module 4 is fixed in the operator station, and the station power indicator 13 is an LED lamp. The station power indicator lamp 13 is convenient for a worker to visually judge the power condition of the CEMS station.
The CEMS station house is provided with a redundant power supply 15 connected with the DCS signal processing module 3. When the power supply of the CEMS station house is abnormal, the redundant power supply 15 is utilized to realize standby power supply of the power supply, so that normal power supply of the CEMS station house is ensured, the stability is higher, and the condition of loss of smoke parameters is effectively reduced.
And the DCS signal processing module 3 is connected to the data processing module 1 and the power detection module 2, and is used for storing and forwarding the flue gas parameter data and the power detection signal of the data processing module 1 and outputting a control signal to the alarm module 4. The DCS signal processing module 3 comprises a data storage unit 6 and a signal detection unit 7, the data storage unit 6 is used for receiving and storing the smoke parameter data of the data processing module 1, and the signal detection unit 7 is used for detecting the smoke parameter data of the data processing module 1 and outputting a control signal to the alarm module 4. The data storage unit 6 is used for storing the smoke parameter data, the signal detection unit 7 is used for analyzing the smoke parameter data and outputting a control signal to the alarm module 4.
Referring to fig. 2, the signal detection unit 7 includes a clean smoke parameter out-of-limit detection unit 8, a clean smoke parameter invalidation detection unit 9, and a clean smoke parameter holding unit 10. The smoke parameter out-of-limit detection part comprises a first OR gate with three input ends, and three pins of the first OR gate are respectively connected with the 'desulfurized clean smoke SO' of the data processing module 12The digital high signal output end of the conversion, the digital high signal output end of the conversion of the dust of the clean flue gas of the desulfurization, the digital high signal output end of the conversion of the NOX of the clean flue gas of the desulfurization, and the output end of the first OR gate are coupled with the alarm module 4.
The invalid detection part 9 of clean flue gas parameter includes the first AND gate, the second OR gate of two input ends, two input ends of the first AND gate couple with "unit load signal" digital high signal output end and "desulfurized clean flue gas dust conversion" digital low signal output end of the data processing module 1 respectively, two input ends of the second AND gate couple with "unit load signal" digital high signal output end and "desulfurized clean flue gas flow" digital low signal output end of the data processing module 1 respectively, the output end of the first AND gate and the output end of the second AND gate are coupled with two input ends of the second OR gate respectively, the output end of the second OR gate is coupled with the alarm module 4.
The clean smoke parameter holding unit 10 includes a first digital-to-analog converter (ABS shown in the figure), a second digital-to-analog converter (ABS shown in the figure),Third AND gate, fourth AND gate and third OR gate for removing sulfur and purifying flue gas SO2The analog signal output end of the conversion and the analog signal output end of the desulfurization clean flue gas NOx conversion are respectively coupled with the first digital-to-analog converter and the second digital-to-analog converter, the digital low signal end of the first digital-to-analog converter and the digital high signal output end of the unit load signal are respectively coupled with two input ends of a third AND gate, the digital low signal end of the second digital-to-analog converter and the digital high signal output end of the unit load signal are respectively coupled with two input ends of a fourth AND gate, the output ends of the third AND gate and the fourth AND gate are respectively coupled with two input ends of a third OR gate, and the output end of the third OR gate is coupled with the alarm module 4.
The clean smoke parameter out-of-limit detection part 8, the clean smoke parameter invalid detection part 9 and the clean smoke parameter holding part 10 are used for analyzing smoke parameters output by the data processing module 1 respectively, and the conditions of 'clean smoke parameter out-of-limit', 'clean smoke parameter invalid' and 'clean smoke parameter holding' of smoke are judged, so that workers can conveniently and quickly identify different smoke parameter data abnormal information and handle the abnormal conditions.
Referring to fig. 1, the alarm module 4 is connected to the DCS signal processing module 3 and configured to receive the control signal output by the DCS signal processing module 3 and generate an alarm signal corresponding to the control signal, where the alarm module 4 includes four relays respectively corresponding to "CEMES power loss", "clean flue gas parameter out-of-limit", "clean flue gas parameter invalid", and "clean flue gas parameter hold", where the "CEMES power loss" relay is coupled to an output terminal of the power loss detector 14, the "clean flue gas parameter out-of-limit" relay is coupled to an output terminal of the first or gate, the "clean flue gas parameter invalid" relay is coupled to an output terminal of the second or gate, and the "clean flue gas parameter hold" relay is coupled to an output terminal of the third or gate.
An alarm mechanism 5 is arranged in the operator station, the alarm mechanism 5 is connected to the alarm module 4 and used for receiving and responding to an alarm signal, and the alarm mechanism 5 comprises a DCS display screen 11 which is fixed in the operator station and connected with the alarm module 4. DCS display screen 11 is convenient for the staff to observe the abnormal condition of flue gas parameter data directly perceivedly. And the alarm device also comprises an audible and visual alarm 12 which is fixed in the operator station and connected with the alarm module 4. When the flue gas parameter data or the power supply of the CEMS station room is abnormal, the sound and light alarm instrument 12 can give out alarm sound and generate alarm light, so that the function of remotely informing a worker to attend to a site to process the abnormal situation is realized.
The implementation principle and the beneficial effects of the embodiment are as follows:
the data processing module 1 is used for collecting the collected flue gas parameter data, the DCS signal processing module 3 is used for storing and analyzing the flue gas parameter data, the power supply condition of a CEMS system station room is detected by the power supply detection module 2, when the DCS signal processing module 3 detects that the flue gas parameter data is abnormal or the power supply is abnormal, the DCS signal processing module 3 outputs a control signal to the alarm module 4, and the alarm module 4 outputs an alarm signal.
In the practical application process, when the power supply of the CEMS station room is abnormal, the parameter of 'CEMS station room power supply loss' is abnormal, the picture in the DCS display screen 11 gives an alarm, the corresponding parameter color changes, and the sound-light alarm 12 gives an alarm; when the clean smoke (sulfur dioxide is more than or equal to 30mg/Nm3, smoke is more than or equal to 7mg/Nm3 and nitrogen oxide is more than or equal to 40mg/Nm 3) is out of limit, the color of the corresponding 'clean smoke parameter data out of limit' in the DCS display screen 11 is changed, and meanwhile, the audible and visual alarm 12 gives an alarm; when the smoke is less than 1mg/Nm3 and the flow is less than or equal to 1m3/h when the unit operates, the color of the corresponding 'invalid smoke parameter data' in the DCS display screen 11 is changed, and meanwhile, the acousto-optic alarm 12 gives an alarm; when the concentration of the clean flue gas (sulfur dioxide, smoke and nitrogen oxides) is unchanged within 10 minutes, the alarm is given, the color of the corresponding 'clean flue gas parameter data retention' in the DCS display screen 11 is changed, and meanwhile, the acousto-optic alarm 12 gives an alarm.
The utility model discloses a CEMS power loss automatic alarm, clean flue gas parameter data transfinite automatic alarm, parameter invalid automatic alarm, parameter keep automatic alarm, make CEMS data disappearance, realize that the system is automatic to be reported to the police after unusual, the operating personnel is reminded to the very first time, more easy access and third party fortune dimension personnel very first time obtain the operating personnel notice and arrive at the on-the-spot processing abnormal conditions, transformation method operation, principle are simple, and the suitability is strong.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. The optimization alarm system and the automatic alarm device based on the clean flue gas CEMS system are arranged in an operator station and used for monitoring flue gas parameters of the CEMS system and power supply conditions of a CEMS system station room, the CEMS system comprises a data processing module (1) used for outputting flue gas parameter data, and the optimization alarm system and the automatic alarm device are characterized in that: the device comprises a power supply detection module (2), a DCS signal processing module (3) and an alarm module (4);
the power supply detection module (2) is used for detecting the power supply loss condition of the CEMS system station room and outputting a power supply detection signal to the DCS signal processing module (3);
the DCS signal processing module (3) is connected with the data processing module (1) and the power supply detection module (2) and is used for storing and transmitting the smoke parameter data of the data processing module (1) and the power supply detection signal and outputting a control signal to the alarm module (4);
the alarm module (4) is connected to the DCS signal processing module (3) and used for receiving the control signal output by the DCS signal processing module (3) and generating an alarm signal corresponding to the control signal;
the alarm device also comprises an alarm mechanism (5) which is connected with the alarm module (4) and is used for receiving and responding to the alarm signal.
2. The optimizing alarm system and automatic alarm device based on clean flue gas CEMS system of claim 1, characterized in that, the DCS signal processing module (3) comprises a data storage unit (6) and a signal detection unit (7), the data storage unit (6) is used for receiving and storing the flue gas parameter data of the data processing module (1), the signal detection unit (7) is used for detecting the flue gas parameter data of the data processing module (1) and outputting a control signal to the alarm module (4).
3. The optimizing alarm system and automatic alarm device based on the clean flue gas CEMS system as claimed in claim 2, characterized in that the signal detection unit (7) comprises a clean flue gas parameter out-of-limit detection part (8), a clean flue gas parameter invalid detection part (9), and a clean flue gas parameter holding part (10).
4. The net-flue-gas CEMS system based optimized warning system and autoalarm according to claim 1, characterized in that the alarm mechanism (5) comprises a DCS display screen (11) fixed inside the operator station and connected to the alarm module (4).
5. The net-flue-gas CEMS-based optimized warning system and automatic warning device according to claim 4, characterized in that the warning mechanism (5) further comprises a sound and light alarm (12) fixed inside the operator station and connected to the warning module (4).
6. The optimized alarm system and automatic alarm device based on clean flue gas CEMS system as claimed in claim 5, characterized in that the operator station has fixed therein a station house power indicator lamp (13) connected with the alarm module (4).
7. The net-flue-gas CEMS-based optimized warning system and autoalarm according to claim 1, characterized in that the power detection module (2) is a voltage sensor.
8. The clean flue gas CEMS system based optimized alarm system and autoalarm as claimed in claim 7, characterized in that inside the CEMS station house is provided a power loss detector (14) connected to the power detection module (2).
9. The optimizing alarm system and autoalarm based on clean flue gas CEMS system of any one of claims 1-7, characterized in that it further comprises a redundant power supply (15), said redundant power supply (15) is arranged in CEMS station house and connected with said DCS signal processing module (3).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295587A (en) * | 2021-05-19 | 2021-08-24 | 山东鲁能控制工程有限公司 | High-parameter thermal power generating unit flue gas emission pollution parameter remote measurement system and device |
| CN117379944A (en) * | 2023-10-16 | 2024-01-12 | 国能龙源环保有限公司 | Method, device, equipment and medium for controlling emission of clean flue gas sulfur dioxide |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295587A (en) * | 2021-05-19 | 2021-08-24 | 山东鲁能控制工程有限公司 | High-parameter thermal power generating unit flue gas emission pollution parameter remote measurement system and device |
| CN117379944A (en) * | 2023-10-16 | 2024-01-12 | 国能龙源环保有限公司 | Method, device, equipment and medium for controlling emission of clean flue gas sulfur dioxide |
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Address after: 430080 Sujiawan, Qingshan District, Wuhan City, Hubei Province Patentee after: Guoneng Changyuan Wuhan Qingshan Thermal Power Co.,Ltd. Address before: 430080 Sujiawan, Qingshan District, Wuhan City, Hubei Province Patentee before: Guodian Qingshan Thermal Power Co.,Ltd. |