CN205005179U - Long -range real -time monitoring system is built by laying bricks or stones to cement rotary kiln - Google Patents
Long -range real -time monitoring system is built by laying bricks or stones to cement rotary kiln Download PDFInfo
- Publication number
- CN205005179U CN205005179U CN201520685638.3U CN201520685638U CN205005179U CN 205005179 U CN205005179 U CN 205005179U CN 201520685638 U CN201520685638 U CN 201520685638U CN 205005179 U CN205005179 U CN 205005179U
- Authority
- CN
- China
- Prior art keywords
- construction
- control system
- site
- time
- video
- 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
Landscapes
- Alarm Systems (AREA)
Abstract
The utility model provides a long -range real -time monitoring system is built by laying bricks or stones to cement rotary kiln, this system comprises central control system, a plurality of stove construction site front end monitored control system, the OA system platform of company and communications network of building, still sets up network monitored control system in above -mentioned each system. The beneficial effect of the utility model: 1, the attendance condition of in time mastering and knowing the building site job site to monitor the rate of attendance better, provide the basis for issuing the wage simultaneously, 2, the engineering construction production progress of in time mastering and knowing the building site job site to the construction production plan that assigns of completion company better, 3, the sanitation and civilized construction situation of the engineering project construction quality who in time masters and know the building site job site and the condition of safe aspect and job site to the construction quality in the engineering project construction production process, the problem of safe aspect have in time been solved.
Description
Technical field
The utility model relates to a kind of journey real-time monitoring system, especially relates to a kind of cement rotary kiln and builds remote real-time monitoring system by laying bricks or stones.
Background technology
At present, along with company's furnace construction engineering task gets more and more, and synchronous epitaxy point also gets more and more, and the circumstance complication at scene, external coordination construction operation personnel also get more and more, certain difficulty is brought to the management of the production scheduling of job site and construction safety, quality aspect, bring very large pressure to the management of job site, management difficulty strengthens, how executing well site construction site management, control accident occurrence frequency, becomes the focus that company's regulatory authorities is paid close attention to.For standard construction field management, improve the efficiency of management, the generation of minimizing accident and electric video supervisory control system is applied to furnace construction engineering scene.The application Neng Shi leading and managing department of supervisory control system understands on-the-spot construction production status at any time, everywhere intuitively, promote and strengthen furnace construction engineering quality in site, safety and civilized construction and sanitary management, by the monitoring to job site emphasis link and key position, particularly the construction quality in job site production status and constructing operation process, safety and the aspect such as on-the-spot civilized construction and Environmental sanitation management are served and supervise and warning function.
Summary of the invention
The purpose of this utility model is to provide a kind of cement rotary kiln and builds remote real-time monitoring system by laying bricks or stones, solves the problem that modernization reasonable utilization remote real-time monitoring cement rotary kiln is built by laying bricks or stones.
The utility model solves the technical scheme that its technical problem adopts:
Remote real-time monitoring system built by laying bricks or stones by a kind of cement rotary kiln, this system is made up of central control system, front end, multiple furnace construction engineering building site supervisory control system, company OA system platform and communication network, in each system above-mentioned, also network monitoring system is set, described network monitoring system is included in the Shi Cai collection Xi Tong ﹑ Video transmission system frequently arranged in the supervisory control system of front end, furnace construction engineering building site, arranges Video Storage System and video display system, in central control system, arrange control and command dispatching patcher and work attendance supervisory systems in company OA system platform;
Total data server, Distributor, management server, certificate server is provided with in described communication network;
Described front end, furnace construction engineering building site supervisory control system comprises PC main frame, front-end server, front end data switch, front end surveillance device, front end Time Attendance Device;
Described company's OA system platform comprises master access center, and described master access center comprises: cellphone subscriber's end, office's monitoring client, general headquarters' centralized monitor end;
Described central control system is also provided with Alarm Control Panel, electronic chart, monitoring wall and monitor console.
Described system is comprised the image capture device being arranged on each front end, furnace construction engineering building site by video acquisition system;
Described Video transmission system uses the local area network (LAN)/metropolitan area network/wide area network/the Internet of standard as the core circuit transmitting image, voice and data information by network video monitor and control system, and by network/the Internet viewing, storage, analysis live video;
Described Video Storage System is exclusive data storage server NAS, comprises memory device and embedded systems software; Cross-platform file-sharing function can be provided;
Described video display system is flat panel display curtain wall;
Described control and command dispatching patcher can monitor work attendance situation, except keeper can carry out occurrences in human life, work attendance, equipment, the management of data and report query, common employee also can use individual's numbering login system to carry out personal information and revise and individual work attendance status inquiry;
Described work attendance supervisory systems, for when adding up different department, staff attendance on different operating posts, having comparatively numerous and diverse regulation or to require and employing fingerprint punched-card machine, face attendance recorder carry out the management of science to staff attendance.
The beneficial effects of the utility model: 1, grasp in time and the work attendance situation understanding site construction scene, to monitor the rate of attendance better, pay out wages for core simultaneously and foundation is provided;
2, grasp in time and the engineering construction manufacturing schedule understanding site construction scene, so that the construction production schedule assigned of the company of completing better;
3, grasp in time and understand the situation of Construction of Engineering Projects quality and safety aspect at site construction scene and the environmental sanitation of job site and civilized construction situation, and the problem of construction quality in time in solution Construction of Engineering Projects production process, secure context;
4, grasp in time and the arrival of the material understanding site construction scene, material supply and on-the-spot material, goods and materials and service condition, to ensure the supply of Construction of Engineering Projects scene material, goods and materials and use and coordinating material, the arrival of goods and materials and supply situation;
5, grasp is used safely and repair with understanding site construction field engineering project large-scale construction equipment (as tearing brick machine, sliding loader etc. open) in time;
6, to safety in production and the monitoring of major hazard source:
Below with reference to drawings and Examples, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is the organigram of structure of the present utility model.
Fig. 2 is the video acquisition network architecture figure organigram of utility model.
Fig. 3 is the two levels network architecture figure of utility model.
Fig. 4 is the net-raid storage rack composition of utility model.
Fig. 5 is the work attendance supervisory control system design of graphics of utility model.
Fig. 6 is the fingerprint collecting flow chart of utility model.
Embodiment
Embodiment 1: as shown in figures 1 to 6, remote real-time monitoring system built by laying bricks or stones by a kind of cement rotary kiln, be applicable to the on-the-spot remote real-time monitoring application of furnace construction engineering, by corporate management's central control room (Surveillance center), front end, each furnace construction engineering building site, company OA system platform and communication network four part composition, it can meet corporate security supervision and management personnel Surveillance center is long-range and to control each building-site and to manage, comprise remote audio monitoring, electronic chart shows, remote audio intercommunication, remote alarms controls, differentiated control, Information issued, files passe such as to assign at the function.Total data server, Distributor, management server, certificate server is provided with in described communication network;
Described front end, furnace construction engineering building site supervisory control system; Comprise PC main frame, front-end server, front end data switch, front end surveillance device, front end Time Attendance Device;
Described company's OA system platform comprises: master access center, and described master access center comprises: cellphone subscriber's end, office's monitoring client, general headquarters' centralized monitor end;
Described central control system is also provided with Alarm Control Panel, electronic chart, monitoring wall and monitor console;
Long distance control system structure:
Job site long distance control system utilizes current existing network and the communication resource fully, in conjunction with advanced Digital Video Processing technology, incorporate the equipment advantage of conventional security crime prevention system, easily can solve brickwork management system to the telesecurity of each construction site and construction management problem, ensure the safe operation of construction site simultaneously.Whole system is made up of three-level network structure:
Front end, each building site is monitored:
Need before each site construction to lead a netting twine, during construction, one portable " management host " can be brought to job site, for the treatment of the camera review of this locality, sound, Work attendance device and allly need the equipment of Long-distance Control and carry out document process.
Server admin center-side is monitored:
Server admin center is the tie of front end monitoring and Surveillance center, possesses following functions: be (1) in charge of the connection with all remote side administration main frames; (2) there is the rear Auto-reconnect function of broken string; (3) network enabled user authority management, the management of Internet video headend equipment, warning information management; (4) digital hard disk recording management; Network enabled multi-user real-time video browse, control and video retrieval, playback.
Surveillance center's end monitoring:
Establish (or several) subscriber's main station, large-size screen monitors curtain wall, the highest mandate by end of administrative center in customer center end-rack, the realtime graphic safety management to each building site can be realized, realize real-time voice, video intercommunication with each building site, can to process with electronic document problematic building site and record, each building site carried out to Classification Management, by network, it notified in writing to (electronic edition), can also carry out the functions such as SMS notification by management platform to this building site and building site director.The each subsystem introduction of network monitoring system
Our company's network monitoring system is primarily of Shi Cai collection Xi Tong ﹑ transmission of video Xi Tong ﹑ Video Storage System, video display system, control and command dispatching patcher, work attendance supervisory systems six major part composition frequently.
Video acquisition system:
Video acquisition system and front-end camera part, whole system " eyes ", video acquisition combines with compression function, network function and P/T/Z function by web camera, directly can export digital audio-video signal in front end, by netting twine and switch, be sent to control and command control centre, client and video recording memory device.Video camera is the primary signal source of whole system, and the specification of video camera and performance will directly affect the quality monitoring of whole supervisory control system.
Day and night type mega pixel anti-riot network hemisphere machine can be selected, in light change, normally can work under even very faint illumination condition, both can obtain the monitored picture of high definition, and can violence damage be prevented.
In the heavier kiln of dust, the position such as tertiary-air pipe, infrared integrated mega pixel dustproof and waterproof network gunlock can be selected, to monitored object with deterrence, even and if no light conditions, still have very outstanding Picture Showing power.
In some key areas, region, key, particular application, select mega pixel network gunlock, camera lens can be matched according to actual needs, obtain more clear, more smooth picture quality, be applicable to very much requiring strict region.
Video transmission system:
Network video monitor and control system uses the local area network (LAN)/metropolitan area network/wide area network/the Internet of standard as the core circuit transmitting image, voice and data information, do not need to adopt complicated analog video cable to be connected with monitor by video camera, can network at random quadrate part administration video camera, and by network/the Internet viewing, store, analyze live video.Its main advantage is exactly that image can not produce noise distortion after transmission, definition and the tonal gradation of original image signal can be ensured, and POE network power supply function supported by video camera, data and power circuit can be united two into one, not only save cost to greatest extent but also eliminated and repeated to lay the loaded down with trivial details of cable.
Video Storage System:
In brickwork maintenance process, when unusual circumstance, only carry out treatment and analysis accident be also nowhere near by browsing real-time pictures, therefore, also need to design a set of video recording storage system, the process record that abnormal conditions occur is got off, to carry out analyzing, processing afterwards, and the qualification to accident responsibility, in this stage, the storage of Internet video and playback just seem extremely important.Meanwhile, the fail safe of network data is very important, and the final purpose of store data is not still in order to preserve safely, also must guarantee that data can be called at any time.The data storage that we use is NAS, it is a kind of special exclusive data storage server, comprise memory device (such as disk array, CD/DVD driver, tape drive or moveable storage medium) and embedded systems software, cross-platform file-sharing function can be provided.NAS occupies oneself node usually on one lan; without the need to the intervention of application server; allow user's access data on network; in this configuration; NAS centralized management and all data processed on network, unload load from server, effectively reduce TCO; protection customer investment, but the bandwidth consumption in backup procedure.
Video display system:
Video display system is system works, playing back videos, the means the most directly perceived, effective of process accident and carrier, and in current miscellaneous Display Technique like this, flat panel display is undoubtedly the most great heterogamous technology of one in Current hardware aspect.Display device, owing to being long-time directly in the face of the parts of people, so more close with the relation of people, especially can not have influence on the health of people.So design the target that a kind of flat panel display curtain wall meeting environment protection health requirement becomes us, and the lcd technology of environment protection health is undoubtedly our first-selection.Certainly, light environment protection health is also enough, and we are from the availability of system, advance, reliability and economy, and design liquid crystal digital TV splicing curtain wall display system, reaches not only environment protection health but also economical and practical effect.
Liquid crystal digital TV splicing curtain wall:
Liquid crystal digital TV splicing curtain wall display system, the liquid crystal digital TV screen that configurable polylith size is different splices, and wherein large scale screen is used for showing electronic chart and picture taking turn, and all the other polylith small-size screens carry out the real-time display of single channel picture.Picture display can directly be realized by the character matrix part in the system of UCMS.First, the digital video signal unobstructed transmission in a network exported by front end coding, network digital matrix directly receives the digital video signal of all front ends from network, and concentrate and carry out processing, analyze, allocate, directly exported to the liquid crystal digital TV of high definition by VGA or DVI, realize various forms of picture display effect.
Work attendance supervisory systems:
In human resource management, Te Do is for adding up different department, during staff attendance on different operating posts, there are comparatively numerous and diverse regulation or requirement, as the setting of work attendance project, the setting of emolument project, the setting of department, personnel adjust the management of class operation, inquiry of situation of turning out for work every day etc., these all need human resource administration at certain hour or monthly carry out inquiring about and add up, these a large amount of work need information-based attendance checking system synchronously to assist beyond doubt, and the fingerprint clocking-in machine of application of advanced or face attendance recorder carry out the management of science to staff attendance.
Long distance control system construct at the scene production safety aspect monitoring with application as follows,
The monitoring of work attendance situation and application:
Network attendance system is the local area network (LAN) circuit utilizing modern enterprise or inside, community generally to set up, and attendance checking system is incorporated the part becoming long distance control system, only needs to log in long distance control system and can monitor work attendance situation.Except keeper can carry out occurrences in human life, work attendance, equipment, the management of data and report query, common employee also can use individual's numbering login system to carry out personal information amendment and individual work attendance status inquiry, thus enable common employee conveniently understand the work attendance situation of oneself timely, reduce the workload of administrative staff, make work attendance work more timely, transparent.
The application of security conference:
1) appearance of supervisory control system, make the content of the safe regular meeting of project more abundant, more targeted, it have recorded the condition of construction of one section, job site, by the arrangement to Video content, makes the content of safe regular meeting true, more has operability.
2) scope of security monitoring is expanded:
The full-time supervision of safety manager of the main dependence project of safety of job site and the awareness of safety of field worker and knowledge, wide due to field operation multiaspect, often there is potential safety hazard and act of violating regulations, easily cause or cause security incident to occur, by video monitoring system, key procedure and key position are monitored, effectively can increase control surface, can eliminate safe hidden trouble in time, the generation of containment act of violating regulations.
3) as the foundation of safe rewarding and punishing:
Safe rewarding and punishing manage as one of the means of current safety management, but often have because safety bonus fouls out the situation of existing disagreement, and the Video Document in video monitoring, the rewarding and punishing that can be safety in production provide necessary foundation.By being installed on the control point of each job site, engineering time section is the on-the-spot real-time condition of real-time, continual transmission online, after system installs, just as capital construction commission is that each building site group goes several in a conscientious and down-to-earth manner, precise law enfrocement official, strengthen the law enforcement dynamics of the supervision in each building site comprehensively, fundamentally ensure that quality and the safety of construction.
The daily monitoring of site operation situation and application:
In work progress, job site supervisory control system application decapacitation provides the situation directly perceived in site construction management process, more effectively can carry out visualized management to brickwork project.Also can integrate video management element in existing management system, accomplish the three-dimensional administrative mechanism of sound all pipe, and the construction project time management of brickwork maintenance items can be strengthened by live video monitoring management system.Utilize supervisory control system, monitor staff can directly monitor job site situation in real time, can not only monitor intuitively and the construction quality at writing task scene, safety in production situation, and quality, the safety hazards of the construction of energy Timeliness coverage, prevent trouble before it happens.Simultaneously by job site supervisory control system, corporate operations personnel can see building site production and construction situation at any time at office, family, grasp project construction progress, and long-range coordination, guiding work can be realized, alleviate the workload that corporate security quality control division field surveillance checks, increase work efficiency and managerial skills, namely strengthen the construction management of engineering project, and can effectively save construction management expense.Meanwhile, because on-site supervision management comes from safety monitoring, therefore, in the on-site supervision management after integration, for construction field management system increases safety assurance ability, new video surveillance management system is made to have stronger managerial ability.
Performance analysis:
1, grasp in time and the work attendance situation understanding site construction scene, to monitor the rate of attendance better, pay out wages for core simultaneously and foundation is provided;
2, grasp in time and the engineering construction manufacturing schedule understanding site construction scene, so that the construction production schedule assigned of the company of completing better;
3, grasp in time and understand the situation of Construction of Engineering Projects quality and safety aspect at site construction scene and the environmental sanitation of job site and civilized construction situation, and the problem of construction quality in time in solution Construction of Engineering Projects production process, secure context;
4, grasp in time and the arrival of the material understanding site construction scene, material supply and on-the-spot material, goods and materials and service condition, to ensure the supply of Construction of Engineering Projects scene material, goods and materials and use and coordinating material, the arrival of goods and materials and supply situation;
5, grasp is used safely and repair with understanding site construction field engineering project large-scale construction equipment (as tearing brick machine, sliding loader etc. open) in time;
6, to safety in production and the monitoring of major hazard source:
(1) major hazard installation control: by video monitoring system to the substantial risk source item in Construction of Engineering Projects: 1. deep foundation pit support; 2. manual digging pile construction; 3. on-the-spot high-formwork construction operation; 4. the setting up and construction of exterior wall scaffold; The constructions such as the folding that 5. Large Construction hoisting machinery (tower crane, construction elevator and construction wellhead) etc. have a dangerous larger large-scale engineering machinery fills, supernumerary segment, lifting and service condition carry out key monitoring, can grasp in time and construction schedule and the safe condition of understanding project with relatively greater danger, to the potential safety hazard found in monitoring or other unlawful practices, job site can be ordered to carry out construction rectification or shut-down inspection immediately.
(2) job site fail-safe condition monitoring:
1. to not by the unlawful practice that construction plan is constructed, as: guardrail do not installed by suspension bridge, and kiln head cover construction is not set up the situations such as scaffold and monitored in real time;
2. during on-the-spot manual work, the situation such as non-use safety protective articles (safety cap, safety belt) is monitored in real time;
3. the situation such as use, protection with dangerous larger large-scale engineering machinery (brick-laying machine, tear brick machine etc. open) is carried out to the real-time monitoring of emphasis;
4. high-altitude dangerous operation personnel are not used of seat belts on request, job site personnel do not wear a safety helmet, or not at the construction field (site) the dangerous matter sources position such as porch, construction lift machinery, temporary electricity facility, scaffold, Vomitory mouth the situations such as obvious safety signs and job site electric wire and cable occur disorderly to connect or arbitrarily mop floor be set monitor in real time.
Above embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that the common engineers and technicians in this area make the technical solution of the utility model and improvement, all should fall in protection range that claims of the present utility model determine.
The utility model does not relate to the part prior art that maybe can adopt all same as the prior art and is realized.
Claims (2)
1. remote real-time monitoring system built by laying bricks or stones by a cement rotary kiln, this system is by central control system, front end, multiple furnace construction engineering building site supervisory control system, company OA system platform and communication network composition, also network monitoring system is provided with in each system above-mentioned, described network monitoring system comprises and is arranged on furnace construction engineering, Shi in the supervisory control system of front end, building site is Cai collection Xi Tong ﹑ Video transmission system frequently, Video Storage System and video display system is provided with in company OA system platform, control and command dispatching patcher and work attendance supervisory systems is provided with in central control system,
Total data server, Distributor, management server, certificate server is provided with in described communication network;
Described front end, furnace construction engineering building site supervisory control system comprises PC main frame, front-end server, front end data switch, front end surveillance device, front end Time Attendance Device;
Described company's OA system platform comprises master access center, and described master access center comprises cellphone subscriber's end, office's monitoring client, general headquarters' centralized monitor end;
Described central control system is also provided with Alarm Control Panel, electronic chart, monitoring wall and monitor console.
2. remote real-time monitoring system built by laying bricks or stones by cement rotary kiln as claimed in claim 1, it is characterized in that: described system is comprised the image capture device being arranged on each front end, furnace construction engineering building site by video acquisition system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520685638.3U CN205005179U (en) | 2015-09-07 | 2015-09-07 | Long -range real -time monitoring system is built by laying bricks or stones to cement rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520685638.3U CN205005179U (en) | 2015-09-07 | 2015-09-07 | Long -range real -time monitoring system is built by laying bricks or stones to cement rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205005179U true CN205005179U (en) | 2016-01-27 |
Family
ID=55162047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520685638.3U Active CN205005179U (en) | 2015-09-07 | 2015-09-07 | Long -range real -time monitoring system is built by laying bricks or stones to cement rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205005179U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104159086A (en) * | 2014-08-22 | 2014-11-19 | 安徽皖通科技股份有限公司 | A platform for monitoring a digital video of a provincial road network |
| CN107145851A (en) * | 2017-04-28 | 2017-09-08 | 西南科技大学 | Constructions work area dangerous matter sources intelligent identifying system |
| CN105072422B (en) * | 2015-09-07 | 2018-01-30 | 安徽芜湖海螺建筑安装工程有限责任公司 | A kind of cement rotary kiln builds remote real-time monitoring system by laying bricks or stones |
-
2015
- 2015-09-07 CN CN201520685638.3U patent/CN205005179U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104159086A (en) * | 2014-08-22 | 2014-11-19 | 安徽皖通科技股份有限公司 | A platform for monitoring a digital video of a provincial road network |
| CN105072422B (en) * | 2015-09-07 | 2018-01-30 | 安徽芜湖海螺建筑安装工程有限责任公司 | A kind of cement rotary kiln builds remote real-time monitoring system by laying bricks or stones |
| CN107145851A (en) * | 2017-04-28 | 2017-09-08 | 西南科技大学 | Constructions work area dangerous matter sources intelligent identifying system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105072422A (en) | Cement rotary kiln masonry remote real-time monitoring system | |
| CN205005179U (en) | Long -range real -time monitoring system is built by laying bricks or stones to cement rotary kiln | |
| CN103253571A (en) | Intelligent media advertisement machine of elevator dynamic monitoring system | |
| CN202189436U (en) | Port and wharf modern management monitoring alarm command system | |
| CN102023599A (en) | Tunnel monitoring system | |
| CN113315838A (en) | Intelligent building site comprehensive safe operation informatization supervision platform | |
| CN201430657Y (en) | Public security network video monitoring system | |
| CN110137940B (en) | Intelligent electric power management and control system based on mobile visualization | |
| CN111629173A (en) | Video cloud storage system for enterprise security protection | |
| CN112261384A (en) | Artificial intelligence violation behavior recognition system | |
| CN204331803U (en) | A kind of cooperative office system for oil gas field industry | |
| CN106303382A (en) | A kind of emergency command comprehensive management platform based on Internet of Things | |
| CN202385211U (en) | Campus network video monitoring system | |
| CN104349129A (en) | Digitized information technology-based campus intelligent security monitoring system | |
| CN106066624A (en) | A kind of building intelligent management system | |
| CN210865062U (en) | Intelligent analysis and early warning management system for petroleum engineering well site videos | |
| CN202841384U (en) | Image monitoring system applied to coal mine | |
| CN1737857A (en) | Student flat housing information management system | |
| CN207926246U (en) | The monitoring system network equipment security protection cabinet of microgrid integration charging station is stored up for light | |
| CN111915215A (en) | Urban environment big data comprehensive cooperative management system | |
| CN116684555A (en) | Construction site on-site comprehensive data acquisition method and system | |
| CN105049809A (en) | Intelligent remote monitoring system | |
| CN104331052A (en) | Panoramic data monitoring platform | |
| CN204287924U (en) | Panoramic view data monitor supervision platform | |
| CN201986070U (en) | Intelligent security monitoring device of gas gathering station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |