CN102566486B - Remote intelligent decoking program control device - Google Patents
Remote intelligent decoking program control device Download PDFInfo
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- CN102566486B CN102566486B CN201210014773.6A CN201210014773A CN102566486B CN 102566486 B CN102566486 B CN 102566486B CN 201210014773 A CN201210014773 A CN 201210014773A CN 102566486 B CN102566486 B CN 102566486B
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Abstract
The invention discloses a remote intelligent decoking program control device which comprises a human-machine terminal device, a PLC control system, an executing mechanism system, a motion detection system and a data analyzing system, wherein the motion detection system comprises a tension detection module which comprises a fixed pulley, a movable pulley and a tension sensor, the tension sensor is fixed on a steel rope of the fixed pulley, the executing mechanism system comprises a boring winch and an electric tap, and the boring winch pulls a drill stem, a fulcrum bearing and a coke cutter to move up and down through a steel rope. According to the invention, the state and the working condition of the coke cutter are figured out through detecting the tension of the steel rope, thus the up-and-down movement and the rotating speed of the coke cutter are automatically regulated, the switching between a remote control and a coke cutting mode is realized, labor intensity of workers is lightened, and safety of operators is ensured.
Description
Technical field
The present invention relates to a kind of delayed coking hydraulic coke-cutting field, particularly a kind of remote intelligent decoking program control device.
Background technology
At present, domestic hydraulic decoking stored program controlled also rests on and controls decoking drilling tool winch jacking equipment, the switch of decoking control valve and the several aspects of the startup of high-pressure hydraulic pump.Decoking process also by manually on the spot execute-in-place and artificial experience judge, current program control system is a semi-automatic work process, execute-in-place environment badly and inefficient operation.Along with the extending capacity reformation of Domestic Old coking, full-automatic top and bottom covers the universal of machine, and the automatic detection of decoking process and decoking process Automatic Control are also imperative.If with V---represent the upper and lower straight-line displacement speed of drilling rod, W---represent drilling rod angular velocity of rotation, L---represent pitch or the helical pitch of the movement locus (helix) of coke cutting water line, tradition is cut burnt process, and to only have V be controlled, W is constant, so L changes, only have by manual shift V and just can obtain desirable L, once need V to change in a large number, can not guarantee to cut quality and the efficiency of coke, therefore the landslide low or that too fast L change greatly easily produces coke of traditional manual operation pattern efficiency produces work accident.In addition, waterpower cutting coke instrument has 2 kinds of patterns: drill mode and Qie Jiao pattern.Coke cutter switches automatically according to the variation of hydraulic pressure between two states, but handover success whether, and existing state, in the past all by manual observation.Manual observation need to be mentioned coke cutter the place close to very from Shang Takou, and the situation in tank of nonetheless observing does not still see and be dangerous large.
For alleviating intensity of workers and ensureing operating personnel's personal safety, also require hydraulic decoking system will realize increasingly automated and realize the safety interlocking of opertaing device, improve the production efficiency of device.Therefore, research and develop a set of old plant modification that both adapted to, the long-distance intelligent Control System for Removing Coke by Water that adapts to again new device is the active demand in market.
Summary of the invention
Technical matters to be solved by this invention is to provide and improves the Cheng Zhineng decoking program control device that produces efficiency and shorten the decoking time.
Concrete technical scheme is realized by following steps:
A kind of remote intelligent decoking program control device, comprise: man-machine terminal equipment, PLC control system, actuator system, movement detection systems and data analysis system, wherein, described movement detection systems comprises a pulling force detection module, described pulling force detection module comprises a fixed pulley, one travelling block and pulling force sensor, described pulling force sensor is fixed on the wire rope of described fixed pulley, described actuator system comprises a boring winch and an electric swivel, described boring winch pulls drilling rod by wire rope, fulcrum roller and coke cutter move up and down, described electric swivel drives described drilling rod, described fulcrum roller and described coke cutter rotatablely move, described pulling force detection module is connected with described electric swivel with described boring winch respectively by described wire rope.
Preferably, described movement detection systems comprises drilling tool position detecting module, and described drilling tool position detecting module is connected with PLC control system by count pulse device.
Preferably, described movement detection systems comprises the spacing detecting sensor of drilling tool, and the spacing detecting sensor of described drilling tool is fixed on derrick guide rail.
Preferably, described movement detection systems comprises cuts burnt coke thickness automatic detection module, describedly cut burnt coke thickness automatic detection module and comprise the automatic detection probe of a coke thickness and a kinetic analyzer, the automatic detection probe of described coke thickness is according on coke drum madial wall, and be connected with described kinetic analyzer, described in cut burnt coke thickness automatic detection module and described man-machine terminal equipment connection.
The present invention can automatically control a whole set of decoking equipment in delayed coking unit hydraulic decoking process, also the manual a whole set of decoking equipment of operated from a distance, on the one hand, the present invention realizes the increasingly automated of hydraulic decoking system and realizes the safety interlocking of equipment, improve the production efficiency of device, particularly by boring winch and electric swivel, control, can be according to the thickness of coke in coke drum, automatically adjust the constant of pitch, can be different according to the hardness of coke, in man-machine interface, select different helical pitches, allow system by the helical pitch surface trimming coke of artificial selection, shorten the decoking time, realize and reduce decoking process energy consumption, improve and cut burnt efficiency, on the other hand, the present invention is by lineoutofservice signal pull is detected and to calculate the present state of coke cutter and working condition, thereby automatically regulates operation up and down and the rotational speed of coke cutter.Conversion between Long-distance Control and Qie Jiao pattern, alleviates intensity of workers and the personal safety that ensures operating personnel.
Accompanying drawing explanation
Fig. 1: be the remote intelligent decoking program control device structural drawing that the embodiment of the present invention provides.
Fig. 2: be the embodiment of the present invention provide cut burnt coke thickness automatic detection module schematic diagram;
Fig. 3: be the lineoutofservice signal pull detection module schematic diagram that the embodiment of the present invention provides;
Fig. 4: be the spacing detection mode schematic diagram of drilling tool that the embodiment of the present invention provides.
1, coke drum, 2 boring winches, 3, electric swivel, 5, drilling tool, 7, long-range decoking operator's console, 13, cut the automatic detection probe of burnt coke thickness, 14, kinetic analyzer, 6, fixed pulley, 17, travelling block, 18, pulling force sensor, 21, drilling rod, 22, limit switch, 23, fulcrum roller.
Embodiment
Below in conjunction with embodiment, the present invention is further described in detail, the embodiment providing is only in order to illustrate the present invention, rather than in order to limit the scope of the invention.
Below in conjunction with accompanying drawing Fig. 1, Fig. 2, Fig. 3 and Fig. 4 and embodiment, the present invention is described in detail below:
A remote intelligent decoking program control device, comprising: man-machine terminal equipment, PLC control system (programmable control system), actuator system, movement detection systems and data analysis system.
This device comprises 2 and overlaps independently PLC system, and control object and the measuring instrument of PLC system are respectively:
Actuator system comprises:
(1) high-pressure pump outlet valve, high-pressure hydraulic pump unit.
(2) drilling tool motion control apparatus: as shown in Figure 1, the remote intelligent decoking program control device that inventive embodiments provides, wherein, drilling tool motion control apparatus comprises boring winch 2, electric swivel 3, tower top shutdown valve, decoking control valve.Pulling force detection module is connected with electric swivel 3 with boring winch 2 respectively by steel wire.
Movement detection systems comprises:
(1) each instrument of high pressure waterline and high-pressure hydraulic pump unit instrument, wherein, high-pressure hydraulic pump unit instrument mainly detects: high-order water pot liquid level, inlet pressure, lubricating oil pressure and liquid level, water pump group temperature, the vibration of water pump group and the displacement of water pump group.
(2) one pulling force detection modules, drilling tool position detecting module, the spacing detecting sensor of drilling tool, cut burnt coke thickness automatic detection module.
As shown in Figure 3, a kind of lineoutofservice signal pull detection module that the present embodiment provides, wherein, pulling force detection module comprises a fixed pulley 16, a travelling block 17 and pulling force sensor 18, pulling force sensor 18 is fixed on fixed pulley 16 wire rope dead end places, the pulling force of pulling force sensor 18 direct-detection single wire ropes;
Drilling tool position detecting module is connected with PLC control system by count pulse device;
As shown in Figure 4, the spacing detection mode of a kind of drilling tool that the present embodiment provides, wherein, the spacing detecting sensor of drilling tool is fixed on derrick guide rail, when drilling rod 21 motion, drilling rod 21 drives fulcrum roller 23 to move up and down along derrick guide rail, and the spacing detecting sensor of drilling tool can detect the metal baffle on fulcrum roller 23, wherein, the spacing detecting sensor of drilling tool adopts the inductance sensor of non-contact detecting metal;
As shown in Figure 2, a kind of burnt coke thickness automatic detection module that the present embodiment provides, wherein, cut burnt coke thickness automatic detection module and comprise the automatic detection probe 13 of a coke thickness and a kinetic analyzer 14, the automatic detection probe 13 of coke thickness is arranged on coke drum 1 madial wall, and be connected with kinetic analyzer 14, cut burnt coke thickness automatic detection module and be connected with long-range decoking operator's console 7.
The using method of this device is as follows:
Operating personnel's groundwork is to complete at water plant operation room, and monitors each key equipment situation by television pickup system.Can automatic decoking on the long-range decoking operator's console 7 of water plant operation room also in a traditional way the equipment such as manual operation winch complete decoking.
1) by DCS or coke drum valve interlock control system processed, provide coke drum 1 and allow decoking signal.
2) long-distance intelligent decoking system is after receiving permission decoking signal, and boring winch 2 self-startings drop to initial initial point (drafting as 5 meters of in tower), and tower top shutdown valve is opened automatically.
3) high-pressure hydraulic pump control subsystem demand operating personnel selection decoking water pump, and whether the instrument signal that detects selected water pump meets entry condition.
4) after high-pressure hydraulic pump condition meets, after manual confirmation, pump discharge valve is opened automatically, and valve postpones high-pressure hydraulic pump startup after reaching position.
5) after high-pressure hydraulic pump operates steadily, first decoking three-position valve original state is backflow state of a control, as the shutdown valve of coke drum 1 is opened, preliminary filling decoking gauge tap by coke drum 1 is carried out preliminary filling, after preliminary filling completes, in each valve position, can possess under normal circumstances decoking condition and carry out standard-sized sheet control, and standard-sized sheet puts in place, meanwhile, the state at pulling force detection module judgement coke cutter place.
6) decoking valve standard-sized sheet puts in place, and meanwhile, coke drum overhead water is pressed onto and reaches setting value, and it is burnt that boring winch 2 and electro-motor start boring.After boring procedure completes automatically, PLC control system is sent signal to man-machine terminal equipment, and whether alert enters next step reaming process.
7) after the complete operating personnel of reaming confirm, coke cutter enters cuts Jiao automatically.First, coke thickness automatic detection module detects the coke thickness in coke drum 1, and by the detection data of pulling force sensor, PLC system is analyzed on its platform, according to analysis result, by rig car 2 and electric swivel 3, adjust respectively the speed that coke cutter promotes up and down and rotates.
8) cut in burnt process, steel wire rope tension shows in real time, except long-distance intelligent decoking system sends, cuts burnt settling signal, otherwise cut Jiao, can not stop.
9) after cutting Jiao and completing, through manual confirmation high-pressure hydraulic pump, automatically stop, drilling tool is got back to initial point (5 meters of in tower) fast, and tower top cuts off closes.
10) the limes superiors place that drilling tool rises to coke drum 1 stops, boring winch and electro-motor power-off.Long-distance intelligent decoking system provides decoking end signal to DCS or valve interlock control system.
Wherein, in movement detection systems, control the speed that promotes up and down (V), control rotation (W), helical pitch L=(360 degree/W) * V.Cutting tool when the interior motion of coke drum 1, cutting water note stroke the movement locus of bifilar helix, in movement locus, pitch is quality and the efficiency that the size of helical pitch has determined cutting coke.In the process of surface trimming coke of the present invention, by the testing result of lineoutofservice signal pull sensor 18, PLC system is operating analysis system on its hardware platform, according to analysis result, by rig car 2 and electric swivel 3, adjusts respectively the speed that coke cutter promotes up and down and rotates.When V value changes, W value can be followed variation automatically, by electric swivel 3, automatically regulates, and makes L keep constant.Operating personnel can be different according to the hardness of coke, select different helical pitches in man-machine interface, allow system by the helical pitch surface trimming coke of artificial selection.
In addition, because steel wire water under high pressure has recoil strength to coke cutter, and the recoil strength of two states is different, and recoil strength can be offset part lineoutofservice signal pull, and native system is by detecting to lineoutofservice signal pull the present state of coke cutter that calculates.
The above is only preferred embodiment of the present invention, and the equivalence of doing according to structure, feature and principle described in patent claim of the present invention therefore all changes or modifies, and is included in patent claim of the present invention.
Claims (4)
1. a long-range decoking program control device, it is characterized in that, comprise: man-machine terminal equipment, PLC control system, actuator system, movement detection systems and data analysis system, wherein, described movement detection systems comprises a pulling force detection module, described pulling force detection module comprises a fixed pulley, one travelling block and pulling force sensor, described pulling force sensor is fixed on the wire rope of described fixed pulley, described actuator system comprises a boring winch and an electric swivel, described boring winch pulls drilling rod by wire rope, fulcrum roller and coke cutter move up and down, described electric swivel drives described drilling rod, described fulcrum roller and described coke cutter rotatablely move, by the detection data of described pulling force sensor, through described PLC control system Operational Data Analysis system on its hardware platform, obtain analysis result, according to described analysis result, by described boring winch and described electric swivel, adjust respectively the speed that described coke cutter promotes up and down and rotates, described pulling force detection module is connected with described electric swivel with described boring winch respectively by described wire rope.
2. device according to claim 1, is characterized in that, described movement detection systems comprises drilling tool position detecting module, and described drilling tool position detecting module is connected with PLC control system by count pulse device.
3. device according to claim 1, is characterized in that, described movement detection systems comprises the spacing detecting sensor of drilling tool, and the spacing detecting sensor of described drilling tool is fixed on derrick guide rail.
4. according to the arbitrary described device of claim 1-3, it is characterized in that, described movement detection systems comprises cuts burnt coke thickness automatic detection module, describedly cut burnt coke thickness automatic detection module and comprise the automatic detection probe of a coke thickness and a kinetic analyzer, the automatic detection probe of described coke thickness is arranged on coke drum madial wall, and be connected with described kinetic analyzer, described in cut burnt coke thickness automatic detection module and described man-machine terminal equipment connection.
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| CN201210014773.6A CN102566486B (en) | 2012-01-17 | 2012-01-17 | Remote intelligent decoking program control device |
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| CN201210014773.6A CN102566486B (en) | 2012-01-17 | 2012-01-17 | Remote intelligent decoking program control device |
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| CN102566486B true CN102566486B (en) | 2014-04-02 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104239074A (en) * | 2014-10-15 | 2014-12-24 | 山东清源石化有限公司 | Coke tower coking computational program |
| CN106635121B (en) * | 2015-07-22 | 2019-05-24 | 中国石油化工股份有限公司 | Devoke control system |
| CN105631435B (en) * | 2016-01-18 | 2016-09-21 | 武汉理工大学 | A kind of mode identification method for coke drum Full-automatic remote decoking and device |
| CN107942009B (en) * | 2017-12-30 | 2020-07-14 | 扬州大学 | Device and method for quantitatively evaluating decoking efficiency |
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|---|---|---|---|---|
| CN2155373Y (en) * | 1993-02-11 | 1994-02-09 | 新疆石油管理局独山子炼油厂 | Combined hydraulic coke knocker |
| CN101321846A (en) * | 2005-10-06 | 2008-12-10 | 科蒂斯-赖特流体控制公司 | Remotely controlled decoking tool used in coke cutting operations |
| CN101412913A (en) * | 2008-11-07 | 2009-04-22 | 无锡雪浪输送机械有限公司 | Improved powdered coke scraper conveyor |
| CN202072667U (en) * | 2011-04-28 | 2011-12-14 | 山东金诚石化集团有限公司 | Device used for delaying coking hydraulic decoking |
-
2012
- 2012-01-17 CN CN201210014773.6A patent/CN102566486B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2155373Y (en) * | 1993-02-11 | 1994-02-09 | 新疆石油管理局独山子炼油厂 | Combined hydraulic coke knocker |
| CN101321846A (en) * | 2005-10-06 | 2008-12-10 | 科蒂斯-赖特流体控制公司 | Remotely controlled decoking tool used in coke cutting operations |
| CN101412913A (en) * | 2008-11-07 | 2009-04-22 | 无锡雪浪输送机械有限公司 | Improved powdered coke scraper conveyor |
| CN202072667U (en) * | 2011-04-28 | 2011-12-14 | 山东金诚石化集团有限公司 | Device used for delaying coking hydraulic decoking |
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Address after: 100007 Oil Mansion, Oil Mansion, 9 Dongzhimen North Street, Dongcheng District, Beijing. Co-patentee after: PetroChina Huadong Design Institute Co Ltd Patentee after: China Petroleum & Natural Gas Co., Ltd. Address before: 100007 Oil Mansion, Oil Mansion, 9 Dongzhimen North Street, Dongcheng District, Beijing. Co-patentee before: CNPC East China Prospecting Design & Research Institute Patentee before: China Petroleum & Natural Gas Co., Ltd. |
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