CN112613746A - Power plant pipeline equipment full life cycle management scheme - Google Patents
Power plant pipeline equipment full life cycle management scheme Download PDFInfo
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- CN112613746A CN112613746A CN202011554099.1A CN202011554099A CN112613746A CN 112613746 A CN112613746 A CN 112613746A CN 202011554099 A CN202011554099 A CN 202011554099A CN 112613746 A CN112613746 A CN 112613746A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0637—Strategic management or analysis, e.g. setting a goal or target of an organisation; Planning actions based on goals; Analysis or evaluation of effectiveness of goals
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/04—Manufacturing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Abstract
The invention discloses a full life cycle management scheme of power plant pipeline equipment, which mainly relates to the technical field of power plant engineering pipeline equipment; the system comprises a processing plant management scheme, a transportation process management scheme, an installation field management scheme and a management system; the invention can greatly reduce the work load of pipeline on-site ball passing and the negative effect thereof, leads the work of ensuring the cleanness of the pipe cavity to be carried out in a manufacturing plant, and protects the pipe cavity in the subsequent process, thereby ensuring the cleanness of the inner part of the pipeline in the whole process of production, transportation and installation.
Description
Technical Field
The invention relates to the technical field of power plant engineering pipeline equipment, in particular to a full life cycle management scheme of power plant pipeline equipment.
Background
The pipeline equipment of the power plant belongs to special equipment, and has strict standard requirements on production, manufacturing, installation, maintenance and detection. Contain a large amount of pipelines among the power plant equipment, its lumen is inside must clean not have debris, avoids power plant's operation period to take place because of the lumen is unclean, have debris to cause boiler pipe explosion, the heavy problems such as steam turbine blade receives the strike, direct influence power plant's operating quality, if take place similar problem in nuclear power plant then influence more.
For pipeline installation quality, all pipelines are often ball-through to ensure lumen cleanliness. At present, the pipeline of a power plant is checked and accepted in the production process to carry out a ball passing test on the pipeline so as to ensure the cleanness of the pipeline, the pipeline is blocked by a simple plastic (thin metal plate) protective cap to protect the pipe orifice in the processes of leaving a factory and transporting, and the pipeline equipment is installed on an installation site and is subjected to the ball passing test again by an equipment installation unit before being installed so as to finally achieve the aim of cleaning the pipeline.
The following problems often exist in the actual production process:
1) from the perspective of the whole process of the pipeline, the ball passing test needs to be carried out more than twice in a boiler manufacturing plant and an equipment installation site, and the defects of repeated operation and increased overall cost are caused;
2) the pipeline is usually protected by plugging a pipe orifice with a simple plastic (metal) protective cap before leaving the factory, so that the inside of the pipe cavity is polluted due to damage of protective measures in the transportation process;
3) the installation of the pipeline of the power plant is a one-time production project, the environmental conditions of a construction site are complex, a ball passing test is carried out by an equipment installation unit before the pipeline is installed to ensure the cleanness of the pipeline, the whole process is manually operated, and the defects of low efficiency and high cost are overcome;
4) the ball passing work is heavy and not uniform, and the flow process is difficult to form if the pipelines contained in one power plant are more in types and large in quantity;
5) the problems of ball flying loss, injury to people and the like easily occur in the ball passing process of a small-caliber pipeline, the ball flying loss can cause unsuccessful ball passing tests and needs to be reworked to pass the ball again, and construction unit technicians and supervision unit supervision engineers need to supervise the ball by-station in the whole process in the ball passing process according to relevant standard requirements, so that the labor cost, the project management cost and the safety risk of the project are improved.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a whole life cycle management scheme for pipeline equipment of a power plant, which can greatly reduce the workload of pipeline on-site ball passing and the negative effects thereof, and the work of ensuring the cleanness of a pipe cavity is carried out in a manufacturing plant in front and is protected in the subsequent process, so that the internal cleanness of the pipeline in the whole processes of production, transportation and installation is ensured.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a power plant pipeline equipment full life cycle management scheme comprises a processing plant management scheme, a transportation process management scheme, an installation field management scheme and a management system;
the process plant management scheme includes the steps of:
s11, after the pipeline is machined and formed, primarily detecting metal impurities in the pipeline, recording the time and the detection data of the primary detection, and uploading the time and the detection data to a management system;
s12, performing a ball passing test on the pipeline, recording the time and test data of the ball passing test, and uploading the time and test data to a management system;
s13, after the ball passing test is finished, the steel balls are repeatedly handed over in time;
s14, after the pipe cavity of the pipeline is determined to be clean, temporarily sealing and plugging the pipe orifice of the pipeline, recording the time for temporarily sealing and plugging the pipe orifice and uploading the time to a management system;
the transportation process management scheme comprises the steps of:
s21, the equipment monitoring personnel supervise the pipeline loading, ensure the integrity of the temporary sealing plug, record the state of the temporary sealing plug of the pipeline and the pipeline loading time, and upload the state and the time to a management system;
s22, after the equipment arrives at an installation site, a field technician checks and accepts the pipeline, confirms whether the temporary sealing plug of the pipeline is intact or not, records the state of the temporary sealing plug of the pipeline and the time of the pipeline arriving at a construction site, and uploads the state of the temporary sealing plug of the pipeline and the time to a management system;
the installation site management scheme comprises the following steps:
s31, a construction unit technician checks the appearance of the pipeline, confirms whether the temporary plugging of the pipeline is intact or not, performs a secondary ball passing test on the deformed pipeline and the pipeline with the temporary sealing plugging loss, records the time and test data of the secondary ball passing test, and uploads the time and test data to a management system;
s32, after the ball passing test is completed, secondarily plugging the pipeline opening, recording the time of secondary plugging, and uploading to a management system;
s33, taking down the temporary pipe orifice sealing and plugging device before pipeline welding, plugging the non-welded pipe orifice again after the pipeline completes ground combined welding and purging and cleaning in the pipeline, recording the time of plugging again, and uploading to a management system.
Preferably, in step S11, a nondestructive testing workshop is installed in the processing plant to perform preliminary testing, and metal impurities in the pipeline are continuously scanned and tested by using an X-ray testing technique, so as to form continuous operation.
Preferably, in step S12, the device for the tube bank ball passing test is used for the ball passing test, the device for the tube bank ball passing test comprises two ball passing devices, the two ball passing devices are respectively installed at two ends of the pipeline, the ball passing test device comprises a ball passing pipe which is installed at the end part of the pipeline and is communicated with the pipeline, the ball passing pipe is obliquely arranged, one side of the ball passing pipe is provided with a ball bag communicated with the ball passing pipe, and a vent pipe is inserted into one end, away from the pipeline, of the ball passing pipe.
Preferably, the ball pipe is fixed on the pipeline through a quick-release clamp and a fixing band.
Preferably, a batten is arranged between the fixing band and the pipeline.
Preferably, the specific step of step S12 includes:
step 1: two ball passing devices are respectively arranged at two ends of the pipeline, wherein the ball passing device with the upward ball bag is used as an air inlet end and a ball inlet end, and the ball passing device with the downward ball bag is used as a ball receiving device;
step 2: inserting the vent pipe into the vent pipe, abutting the steel ball in the ball bag with the outer wall of the vent pipe, and purging the pipeline after venting;
and step 3: the vent pipe is drawn out outwards, so that the steel ball falls into the vent pipe;
and 4, step 4: then the vent pipe is inserted into the ball through pipe, air is supplied, and the steel ball is blown into the pipeline;
and 5: if the pipeline is not blocked, the steel ball can collide with the mouth of the ventilating pipe to block the steel ball from falling into the ball bag of the ball receiving device, and the ball passing test is completed.
Preferably, the ball diameter of the steel ball for the secondary pass test in step S31 is the same as the ball diameter of the steel ball for the pass test in step S12.
Compared with the prior art, the invention has the beneficial effects that:
the invention integrates the whole process from the manufacture to the installation of the pipeline, improves the modularized pipelining work of factory manufacture by utilizing the local advantages of the production process of a processing factory, reduces the temporary work of a construction site, and organically combines the ball passing test of the manufacturing factory and the ball passing test of the construction site; the cleaning of the interior of the pipeline is carried out in a processing plant, the ball passing test efficiency is improved, the whole process of the interior of the pipeline is kept clean by using an effective device, the rechecking workload of whether the pipeline is cleaned or not is effectively reduced, the difficulty of the pipeline in field installation is reduced, and the efficiency is improved; the interior of the pipeline is integrally controlled to be clean through a whole-process management means; therefore, the cleanness of the pipe cavity is fundamentally ensured, the quality of the pipeline equipment is improved, the overall efficiency is improved, and the overall cost is reduced.
Drawings
FIG. 1 is a schematic structural view of the apparatus for a tube bank pass ball test in the example.
The reference numbers in the drawings: 1. a ball pipe; 2. a ball bag; 3. a steel ball; 4. a breather pipe; 5. a quick release clip; 6. fixing belts; 7. wood block; 8. a pipeline.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
The field installation of the current pipeline is taken as the continuation of equipment manufacture, and the characteristics of factory production and modularization are kept; therefore, the pipeline cleaning work is transferred to a manufacturer to be cleaned from the beginning, the protection is carried out in the transportation and storage processes, the protection measures are checked before installation, and the ball check is carried out, so that the cleanness of the pipeline cavity is ensured, the overall cost is reduced, and the efficiency of the whole pipeline equipment related overall process is improved.
Example (b): the invention relates to a power plant pipeline equipment full life cycle management scheme, which comprises a processing plant management scheme, a transportation process management scheme, an installation field management scheme and a management system;
the process plant management scheme includes the steps of:
s11, after the pipeline is machined and formed, primarily detecting metal impurities in the pipeline, recording the time and the detection data of the primary detection, and uploading the time and the detection data to a management system;
preferably, a nondestructive testing workshop is arranged in the processing plant for primary detection, and metal impurities in the detection pipeline are continuously scanned by an X-ray detection technical means to form continuous operation.
S12, performing a ball passing test on the pipeline, recording the time and test data of the ball passing test, and uploading the time and test data to a management system;
specifically, in step S12, utilize the device for bank ball passing test to carry out the ball passing test, the device for bank ball passing test includes two ball passing devices, and two ball passing devices are installed respectively in the both ends of pipeline, and ball passing test device is including installing at the pipeline tip and with the ball passing pipe of pipeline intercommunication, and the slope of ball passing pipe is arranged, and one side of ball passing pipe is equipped with the ball bag that communicates with ball passing pipe, and the one end that the pipeline was kept away from to ball passing pipe has inserted the breather pipe.
Preferably, the ball passing pipe is fixed on the pipeline through a quick-release clamp and a fixing band, and is convenient to fix.
Preferably, a batten is arranged between the fixing band and the pipeline and can be used for adjusting the angle.
Further, the specific step of step S12 includes:
step 1: two ball passing devices are respectively arranged at two ends of the pipeline, wherein the ball passing device with the upward ball bag is used as an air inlet end and a ball inlet end, and the ball passing device with the downward ball bag is used as a ball receiving device;
step 2: inserting the vent pipe into the vent pipe, abutting the steel ball in the ball bag with the outer wall of the vent pipe, and purging the pipeline after venting;
and step 3: the vent pipe is drawn out outwards, so that the steel ball falls into the vent pipe;
and 4, step 4: then the vent pipe is inserted into the ball through pipe, air is supplied, and the steel ball is blown into the pipeline;
and 5: if the pipeline is not blocked, the steel ball can collide with the mouth of the ventilating pipe to block the steel ball from falling into the ball bag of the ball receiving device, and the ball passing test is completed.
The ball diameters of all steel balls for the ball passing test are calculated according to the requirements in Water tube boiler GB/T16507-2013. The ball passing test adopts compressed air as power and is provided by an air compressor. The compressed air pressure is 5-8 kg/cm 2. Two ball passing personnel are needed to carry out ball passing tests row by row and tube by tube, and each tube is immediately plugged after the ball passing test is finished. One person firstly sweeps by using compressed air to blow out internal impurities; the other looks up the tube outlet and is ready to catch the ball. When a pipe needing the ball passing test is found, the former person puts the steel ball into the pipe again and blows the steel ball out by compressed air.
The steel ball can not be left in the pipe, and when the steel ball can not pass through, the position of the steel ball can be found out. If the inner diameter of the pipe is too small, timely reflecting and recording, and taking effective measures to process; if foreign matters exist in the tube, the tube is taken out and kept, and a 'ball passing inspection record' is made.
S13, after the ball passing test is finished, the steel balls are repeatedly handed over in time;
s14, after the pipe cavity of the pipeline is determined to be clean, temporarily sealing and plugging the pipe orifice of the pipeline, recording the time for temporarily sealing and plugging the pipe orifice and uploading the time to a management system;
the transportation process management scheme comprises the steps of:
s21, the equipment monitoring personnel supervise the pipeline loading, ensure the integrity of the temporary sealing plug, record the state of the temporary sealing plug of the pipeline and the pipeline loading time, and upload the state and the time to a management system;
s22, after the equipment arrives at an installation site, a field technician checks and accepts the pipeline, confirms whether the temporary sealing plug of the pipeline is intact or not, records the state of the temporary sealing plug of the pipeline and the time of the pipeline arriving at a construction site, and uploads the state of the temporary sealing plug of the pipeline and the time to a management system;
the installation site management scheme comprises the following steps:
s31, a construction unit technician checks the appearance of the pipeline, confirms whether the temporary plugging of the pipeline is intact or not, performs a secondary ball passing test on the deformed pipeline and the pipeline with the temporary sealing plugging loss, records the time and test data of the secondary ball passing test, and uploads the time and test data to a management system;
the device for the tube bank ball passing test in the step S12 can be continuously used for carrying out the secondary ball passing test, the ball diameters of all the steel balls for the ball passing test are calculated according to the requirements in the specification GB 50273 plus 2009 of boiler installation engineering construction and acceptance, the ball diameters are the same as those of the steel balls for the ball passing test in the step S12, and the ball passing test process is consistent with the requirements of the ball passing test in the manufacturing plant.
S32, after the ball passing test is completed, secondarily plugging the pipeline opening, recording the time of secondary plugging, and uploading to a management system;
s33, the temporary pipe orifice sealing and plugging device is taken down before the pipeline is welded, after the pipeline is subjected to ground combined welding and purged and cleaned in the pipeline, the non-welded pipe orifice is plugged again, the time for plugging again is recorded and uploaded to a management system to keep the interior of the pipeline clean, the pipeline is sealed in the whole non-purging welding period, and the opening time of the pipeline in the welding period is the shortest.
The management system is used by a manufacturer, an equipment monitoring and manufacturing personnel and a pipeline equipment installation technician to record the whole process management measures of all links of the processing of a pipeline in the manufacturer, the detection and scanning of impurities, the sealing of a pipe orifice, the transportation of the pipeline, the field installation and the like, particularly the whole process sealing of the pipeline in the non-use installation period such as the transportation period and the like and the opening time of the pipeline in the use installation period are kept to be the shortest, the cleanness of a pipe cavity is finally realized, the integral quality is improved, and the cost is reduced.
The invention improves the modularized pipelining work of factory manufacture, reduces the temporary work of construction site and organically combines the ball passing test of factory and the ball passing test of construction site by coordinating the whole process from manufacture to installation of pipelines and utilizing the local advantages of the production process of factory; the cleaning of the interior of the pipeline is carried out in a factory, the ball passing test efficiency is improved, the whole process of the interior of the pipeline is kept clean by using an effective device, the rechecking workload of whether the pipeline is cleaned or not is effectively reduced, the difficulty of the pipeline installation on site is reduced, and the efficiency is improved; the interior of the pipeline is integrally controlled to be clean through a whole-process management means; therefore, the cleanness of the pipe cavity is fundamentally ensured, the quality of the pipeline equipment is improved, the overall efficiency is improved, and the overall cost is reduced.
Claims (7)
1. The utility model provides a power plant plumbing installation full life cycle management scheme which characterized in that: the system comprises a processing plant management scheme, a transportation process management scheme, an installation field management scheme and a management system;
the process plant management scheme includes the steps of:
s11, after the pipeline is machined and formed, primarily detecting metal impurities in the pipeline, recording the time and the detection data of the primary detection, and uploading the time and the detection data to a management system;
s12, performing a ball passing test on the pipeline, recording the time and test data of the ball passing test, and uploading the time and test data to a management system;
s13, after the ball passing test is finished, the steel balls are repeatedly handed over in time;
s14, after the pipe cavity of the pipeline is determined to be clean, temporarily sealing and plugging the pipe orifice of the pipeline, recording the time for temporarily sealing and plugging the pipe orifice and uploading the time to a management system;
the transportation process management scheme comprises the steps of:
s21, the equipment monitoring personnel supervise the pipeline loading, ensure the integrity of the temporary sealing plug, record the state of the temporary sealing plug of the pipeline and the pipeline loading time, and upload the state and the time to a management system;
s22, after the equipment arrives at an installation site, a field technician checks and accepts the pipeline, confirms whether the temporary sealing plug of the pipeline is intact or not, records the state of the temporary sealing plug of the pipeline and the time of the pipeline arriving at a construction site, and uploads the state of the temporary sealing plug of the pipeline and the time to a management system;
the installation site management scheme comprises the following steps:
s31, a construction unit technician checks the appearance of the pipeline, confirms whether the temporary plugging of the pipeline is intact or not, performs a secondary ball passing test on the deformed pipeline and the pipeline with the temporary sealing plugging loss, records the time and test data of the secondary ball passing test, and uploads the time and test data to a management system;
s32, after the ball passing test is completed, secondarily plugging the pipeline opening, recording the time of secondary plugging, and uploading to a management system;
s33, taking down the temporary pipe orifice sealing and plugging device before pipeline welding, plugging the non-welded pipe orifice again after the pipeline completes ground combined welding and purging and cleaning in the pipeline, recording the time of plugging again, and uploading to a management system.
2. The power plant plumbing installation full lifecycle management solution of claim 1, wherein: in step S11, a nondestructive testing workshop is set in the processing plant to perform preliminary testing, and metal impurities in the detection pipeline are continuously scanned by means of an X-ray detection technology to form continuous operation.
3. The power plant plumbing installation full lifecycle management solution of claim 1, wherein: in step S12, the device for the tube bank ball passing test is utilized to carry out the ball passing test, the device for the tube bank ball passing test comprises two ball passing devices, the two ball passing devices are respectively installed at two ends of a pipeline, the ball passing test device comprises a ball passing pipe which is installed at the end part of the pipeline and communicated with the pipeline, the ball passing pipe is obliquely arranged, one side of the ball passing pipe is provided with a ball bag communicated with the ball passing pipe, and a vent pipe is inserted into one end, far away from the pipeline, of the ball passing pipe.
4. The power plant plumbing installation full lifecycle management solution of claim 3, wherein: the ball tube is fixed on the pipeline through a quick-release clamp and a fixing band.
5. The power plant plumbing installation full lifecycle management solution of claim 4, wherein: and a batten is arranged between the fixing band and the pipeline.
6. The power plant plumbing installation full-life-cycle management solution of claim 3, 4 or 5, wherein the specific steps of the step S12 include:
step 1: two ball passing devices are respectively arranged at two ends of the pipeline, wherein the ball passing device with the upward ball bag is used as an air inlet end and a ball inlet end, and the ball passing device with the downward ball bag is used as a ball receiving device;
step 2: inserting the vent pipe into the vent pipe, abutting the steel ball in the ball bag with the outer wall of the vent pipe, and purging the pipeline after venting;
and step 3: the vent pipe is drawn out outwards, so that the steel ball falls into the vent pipe;
and 4, step 4: then the vent pipe is inserted into the ball through pipe, air is supplied, and the steel ball is blown into the pipeline;
and 5: if the pipeline is not blocked, the steel ball can collide with the mouth of the ventilating pipe to block the steel ball from falling into the ball bag of the ball receiving device, and the ball passing test is completed.
7. The power plant plumbing installation full lifecycle management solution of claim 1, wherein: the ball diameter of the steel ball for the secondary pass test in step S31 is the same as the ball diameter of the steel ball for the pass test in step S12.
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| CN202011554099.1A CN112613746A (en) | 2020-12-24 | 2020-12-24 | Power plant pipeline equipment full life cycle management scheme |
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| CN202011554099.1A CN112613746A (en) | 2020-12-24 | 2020-12-24 | Power plant pipeline equipment full life cycle management scheme |
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Cited By (1)
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Application publication date: 20210406 |