CN103389217B - Power station boiler air door driver torque detecting apparatus - Google Patents
Power station boiler air door driver torque detecting apparatus Download PDFInfo
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- CN103389217B CN103389217B CN201210139311.7A CN201210139311A CN103389217B CN 103389217 B CN103389217 B CN 103389217B CN 201210139311 A CN201210139311 A CN 201210139311A CN 103389217 B CN103389217 B CN 103389217B
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- air door
- door driver
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- station boiler
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Abstract
The present invention relates to field of power station boiler air door driver detection, particularly relate to a kind of power station boiler air door driver detection method and device.A kind of power station boiler air door driver detection method, first the torque output shaft of air door driver is connected with torque detecting apparatus, then the drived control spot check switch of air door driver is opened, observe the torque value that air door driver exports, judge according to torque value, the air door driver broken down is changed or keeped in repair.The portable torque detecting apparatus of a kind of power station boiler air door driver, is made up of moment of torsion testing agency and travelling car two parts.By the moment of torsion detecting air door driver output, the present invention judges whether air door driver normally works, use at the scene can help operating personnel to understand the working condition of air door driver, data can be supplied by Quick, rationally reducing the labour intensity of operator simultaneously, also effectively reducing the unnecessary economic loss that power plants generating electricity unit causes when overhauling, decreasing troubleshooting time.
Description
Technical field
The present invention relates to field of power station boiler air door driver detection, particularly relate to a kind of power station boiler air door driver pick-up unit.
Background technology
Power station boiler air door driver is the device baffle plate be arranged in air channel being carried out to aperture adjustment, uses extensively in power plant.The air quantity that power station boiler air door driver can realize in boiler combustion needed for each system regulates.In boiler combustion process, it is an important parameter that air quantity regulates, and air quantity and the flux matched bad meeting of coal directly affect the economy of boiler combustion; Air quantity regulates bad at burner hearth, also can cause the security incident of boiler flameout or blast, and therefore job requirement is accurate, reliable at the scene for power station boiler air door driver.
Existing air door driver is installed as shown in Figure 1, and air door driver 1 is connected with transmission arm 3 by torque transfer shaft 2, and transmission arm 3 drives the baffle plate 4 of air door.Power station boiler air door driver is at the scene in practical work process, work requirements can not reached because of many factors, air door driver 1 such as in boiler of power plant burner hearth wind pressure control system just occurred because moment of torsion usable range is improper, baffle plate 4 aperture driven is excessive, when causing fan starting, electric current is excessive, the problem of air quantity also bigger than normal can not meeting the demands and maintenance of doing over again; In boiler milling system, especially repeatedly, multiple stage coal pulverizer because of boiler air door driver 1 moment of torsion export little, baffle plate 4 aperture is too small, the exception that air quantity is little.
Boiler pressure control is very important for boiler combustion, the General Maintenance of current power station boiler air door driver, because cannot detect the torsional forces that it drives, so only drive aperture to detect to it.The moment of torsion that Measuring opening does not normally represent the actual driving of boiler air door driver is normal, torsional forces abnormal belt just causes the exception of Boiler pressure control after load, so because maintainer is because the detection means that there is no need, the fault of power station boiler air door driver exception cannot carry out preventative evading; Also cannot provide when boiler Boiler pressure control is abnormal that to judge that data carry out differentiating fast be that boiler air door driver moment of torsion exception causes or interior panelling fault, recurrent erroneous judgement causes needing to stop the equipment in whole region to enter air channel during maintenance and checks, expands fault handling scope; Power station boiler air door driver is the large-scale driving arrangement of nearly 500 kilograms of weight, be arranged on downstream, air channel installing space narrow and small more, dismounting difficulty, carry out also wasting the quality time of eliminating fault while the replacing of platform part wastes a large amount of human and material resources in genset runs, have impact on genset normal power generation amount.Therefore the power station boiler air door driver that dispersion is arranged on on-the-spot each region how is overcome, at present overhaul and fault handling time without direct judging means, the problems such as troubleshooting time is long are badly in need of taking some countermeasures, namely normal to ensure that power station boiler air door driver comes into operation, air quantity when genset normally runs.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of power station boiler air door driver torque detecting apparatus, the moment of torsion exported by detecting air door driver judges whether air door driver normally works, facilitate the maintenance to air quantity system in boiler of power plant genset, decrease troubleshooting time.
The present invention is achieved in that a kind of power station boiler air door driver detection method, first the torque output shaft of air door driver is connected with torque detecting apparatus, then the drived control spot check switch of air door driver is opened, observe the torque value that air door driver exports, following selection is made according to torque value, 1) when torque value is in normal range, close the gauge tap of air door driver, by air door driver return, remove torque detecting apparatus, air door driver detects and terminates, and provides calibration tails list; 2) when torque value is abnormal, close the gauge tap of air door driver, remove torque detecting apparatus, air door driver detects and terminates, and changes this air door driver or keeps in repair.
The portable torque detecting apparatus of a kind of power station boiler air door driver, be made up of moment of torsion testing agency and travelling car two parts, described moment of torsion testing agency is arranged on travelling car, moment of torsion testing agency comprises casing, spline engagement cover, axle sleeve, movable support frame, laser instrument, spline drived assembly, spline engagement cover power driving lever, torsion indicating mechanism, lifting jack and centering adjusting bolt dish, described movable support frame is arranged in casing, spline engagement cover is arranged on movable support frame by axle sleeve, and described laser instrument is arranged on the axle center place in spline engagement cover; Spline engagement cover overlaps power driving lever by spline drived assembly and spline engagement and links, and described torsion indicating mechanism is arranged on casing, and described spline engagement cover power driving lever drives torsion indicating mechanism by pointer power driving lever; Described lifting jack is connected with movable support frame, and described centering adjusting bolt dish is arranged on outside casing, and the transmission shaft of centering adjusting bolt dish is connected with movable support frame through the outer wall of casing.
Described torsion indicating mechanism comprises torsion pointer, index dial and balance pull-spring, and described index dial is arranged on the outer wall of casing, described torsion pointer by bolted splice on index dial; Described spline engagement cover power driving lever one end is connected with spline drived assembly, and the other end symmetria bilateralis of spline engagement cover power driving lever installs a pair balance pull-spring; Described pointer power driving lever one end is arranged in the chute on spline engagement cover power driving lever, and the pointer power driving lever other end and torsion pointer link.
Described lifting jack is hydraulic jack, comprise hydraulic hand-pump, hydraulic tube and lifting pin, described hydraulic hand-pump is arranged on travelling car, and hydraulic hand-pump hydraulic port is connected with lifting pin by hydraulic tube, and the bottom that lifting pin is arranged on casing drives movable support frame.
Described travelling car is also equipped with handrail.
By the moment of torsion detecting air door driver output, power station boiler air door driver torque detecting apparatus of the present invention judges whether air door driver normally works; use at the scene can help operating personnel to understand the working condition of air door driver; realize the real-time follow-up to equipment state and control, for the management level improving equipment, there is positive effect; Its larger meaning is also when the control of air quantity system goes wrong, the method and device energy Quick are for data, stop original in the detection means without corresponding standard, the duty of air door driver cannot be judged, make the practical problems that blindly can only expand site examining and repairing scope.The present invention rationally reducing the labour intensity of operator simultaneously, also effectively reducing the unnecessary economic loss that power plants generating electricity unit causes when overhauling, facilitating the maintenance to air quantity system in boiler of power plant genset, decreasing troubleshooting time.
Accompanying drawing explanation
Fig. 1 is that existing air door driver installs connection layout;
Fig. 2 is power station boiler air door driver of the present invention portable torque detecting apparatus structure schematic front view;
Fig. 3 is power station boiler air door driver of the present invention portable torque detecting apparatus structure schematic top plan view;
Fig. 4 is that schematic diagram is looked on the portable torque detecting apparatus structure right side of power station boiler air door driver of the present invention;
Fig. 5 is torsion indicating mechanism structure schematic front view in the present invention;
Fig. 6 is that in the present invention, schematic diagram is looked on the torsion indicating mechanism structure right side;
Fig. 7 is workflow diagram when using the portable torque detecting apparatus of power station boiler air door driver of the present invention to detect.
In figure: 1 air door driver, 2 torque transfer shaft, 3 transmission arms, 4 baffle plates, 5 moment of torsion output splines, 6 casings, 7 spline engagement covers, 8 axle sleeves, 9 movable support frames, 10 laser instruments, 11 spline drived assemblies, 12 spline engagement cover power driving levers, 13 torsion indicating mechanisms, 14 pointer power driving levers, 15 lifting jack, 16 centering adjusting bolt dishes, 17 hydraulic hand-pumps, 18 hydraulic tubes, 19 lifting pins, 20 travelling cars, 21 handrails, 131 torsion pointers, 132 index dials, 133 balance pull-springs, 134 bolts.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's statement.
Embodiment 1
A kind of power station boiler air door driver detection method, first the torque output shaft of air door driver is connected with torque detecting apparatus, then open the drived control spot check switch of air door driver, observe the torque value that air door driver exports, make following selection according to torque value, 1) when torque value is in normal range, close the gauge tap of air door driver, by air door driver return, remove torque detecting apparatus, air door driver detects and terminates, and provides calibration tails list; 2) when torque value is abnormal, close the gauge tap of air door driver, remove torque detecting apparatus, air door driver detects and terminates, and changes or keeps in repair, provide calibration tails list to this air door driver.
As Fig. 2, 3, shown in 4, the portable torque detecting apparatus of a kind of power station boiler air door driver, be made up of moment of torsion testing agency and travelling car two parts, described moment of torsion testing agency is arranged on travelling car 20, moment of torsion testing agency comprises casing 6, spline engagement cover 7, axle sleeve 8, movable support frame 9, laser instrument 10, spline drived assembly 11, spline engagement cover power driving lever 12, torsion indicating mechanism 13, lifting jack 15 and centering adjusting bolt dish 16, described movable support frame 9 is arranged in casing 6, spline engagement cover 7 is arranged on movable support frame 9 by axle sleeve 8, described laser instrument 10 is arranged on the axle center place in spline engagement cover 7, spline engagement cover 7 overlaps power driving lever 12 by spline drived assembly 11 and spline engagement and links, and described torsion indicating mechanism 13 is arranged on casing 6, and described spline engagement cover power driving lever 12 drives torsion indicating mechanism 13 by pointer power driving lever 14, described lifting jack 15 is connected with movable support frame 9, described centering adjusting bolt dish 16 is arranged on outside casing 6, the transmission shaft of centering adjusting bolt dish 16 is connected with movable support frame 9 through the outer wall of casing 6, in the present embodiment, it is two right that described centering adjusting bolt dish 16 is provided with altogether, and two pairs of centering adjusting bolt dish 16 symmetries are arranged on casing 6 both sides.
The portable torque detecting apparatus of power station boiler air door driver of the present invention can further describe into, as shown in Figure 5,6, described torsion indicating mechanism 13 comprises torsion pointer 131, index dial 132 and balance pull-spring 133, described index dial 132 is arranged on the outer wall of casing 6, and described torsion pointer 131 is hinged on index dial 132 by bolt 134; Described spline engagement cover power driving lever 12 one end is connected with spline drived assembly 11, and the other end symmetria bilateralis of spline engagement cover power driving lever 12 installs a pair balance pull-spring 133; Described pointer power driving lever 14 one end is arranged in the chute on spline engagement cover power driving lever 12, and pointer power driving lever 14 other end and torsion pointer 131 link.When pick-up unit produces torsional forces change under the drive of power station boiler air door driver 1, at spline engagement cover power driving lever 12 to generation action, balance pull-spring 133 produces distortion, pointer power driving lever 14 produces interlock in the chute of spline engagement cover power driving lever 12, torsion pointer 131 is driven to rotate, to be read shown torque value by index dial 132, when boiler air door driver 1 quits work without torsional forces effect, under the effect of balance pull-spring 133, torsion pointer 131 gets back to " 0 " position.
Under normal circumstances, in order to energy is easy to use, in the present embodiment, described lifting jack 15 is hydraulic jack, comprise hydraulic hand-pump 17, hydraulic tube 18 and lifting pin 19, described hydraulic hand-pump 17 is arranged on travelling car 20, and hydraulic hand-pump 17 hydraulic port is connected with lifting pin 19 by hydraulic tube 18, and the bottom that lifting pin 19 is arranged on casing 6 drives movable support frame 9.
Conveniently the movement of the portable torque detecting apparatus of this power station boiler air door driver, described travelling car 20 is also equipped with handrail 21.
When actual detection as shown in Figure 7, moment of torsion output spline 5 is that the torsional forces of air door driver 1 provides axle in the present invention; Moment of torsion testing agency and air door driver 1 is made to carry out rough contraposition by travelling car 20; Spline engagement cover 7 matches with moment of torsion output spline 5, carries out centering inspection by laser instrument 10; When the horizontal position of moment of torsion testing agency and moment of torsion output spline 5 is not on time, adjust the position of movable support frame 9 by centering adjusting bolt dish 16; When moment of torsion testing agency does not align with the height of moment of torsion output spline 5, the lifting pin 19 by jin top 15 is elevated, and carries out upper and lower aligning; By laser instrument 10, above contraposition process confirms that the mid point whether laser aims at moment of torsion output spline 5 end face of air door driver 1 carries out; After contraposition work completes, push away in travelling car 20 is continued and spline engagement cover 7 is engaged with moment of torsion output spline 5; Drive the aperture spot check maintenance switch of power station boiler air door driver 1, spline engagement cover power driving lever 12 can drive pointer power driving lever 14, can show tested torque value with the joining torsion pointer 131 of pointer power driving lever 14 according to the moment of torsion of air door driver 1 actual output situation; When air door driver 1 quits work without torsional forces effect, torsion pointer 131 resets and sets to 0; The portable torque detecting apparatus of power station boiler air door driver of the present invention and the whole measuring process of method, according to the torque value of the 09 torsion pointer instruction of Fig. 2, judge whether to meet the requirements; Undesirable, then require to close power station boiler air door driver gauge tap, torque detecting apparatus exits, and changes or keep in repair air door driver; Meet the requirements, then close power station boiler air door driver gauge tap, by air door driver return, torque detecting apparatus exits, and this air door driver is dropped into genset and normally works.Finally use power station boiler air door driver torque detecting apparatus of the present invention to check end-of-job, provide power station boiler air door driver calibration tails list.
Claims (4)
1. the portable torque detecting apparatus of power station boiler air door driver, it is characterized in that: be made up of moment of torsion testing agency and travelling car two parts, described moment of torsion testing agency is arranged on travelling car (20), moment of torsion testing agency comprises casing (6), spline engagement cover (7), axle sleeve (8), movable support frame (9), laser instrument (10), spline drived assembly (11), spline engagement cover power driving lever (12), torsion indicating mechanism (13), lifting jack (15) and centering adjusting bolt dish (16), described movable support frame (9) is arranged in casing (6), spline engagement cover (7) is arranged on movable support frame (9) by axle sleeve (8), described laser instrument (10) is arranged on the axle center place in spline engagement cover (7), spline engagement cover (7) overlaps power driving lever (12) by spline drived assembly (11) and spline engagement and links, described torsion indicating mechanism (13) is arranged on casing (6), and described spline engagement cover power driving lever (12) drives torsion indicating mechanism (13) by pointer power driving lever (14), described lifting jack (15) is connected with movable support frame (9), described centering adjusting bolt dish (16) is arranged on casing (6) outward, and the transmission shaft of centering adjusting bolt dish (16) is connected with movable support frame (9) through the outer wall of casing (6).
2. the portable torque detecting apparatus of power station boiler air door driver as claimed in claim 1, it is characterized in that: described torsion indicating mechanism (13) comprises torsion pointer (131), index dial (132) and balance pull-spring (133), described index dial (132) is arranged on the outer wall of casing (6), and described torsion pointer (131) is hinged on index dial (132) by bolt (134); Described spline engagement cover power driving lever (12) one end is connected with spline drived assembly (11), and the other end symmetria bilateralis of spline engagement cover power driving lever (12) installs a pair balance pull-spring (133); Described pointer power driving lever (14) one end is arranged in the chute in spline engagement cover power driving lever (12), and pointer power driving lever (14) other end and torsion pointer (131) link.
3. the portable torque detecting apparatus of power station boiler air door driver as claimed in claim 1, it is characterized in that: described lifting jack (15) is hydraulic jack, comprise hydraulic hand-pump (17), hydraulic tube (18) and lifting pin (19), described hydraulic hand-pump (17) is arranged on travelling car (20), hydraulic hand-pump (17) hydraulic port is connected with lifting pin (19) by hydraulic tube (18), and the bottom that lifting pin (19) is arranged on casing (6) drives movable support frame (9).
4. the portable torque detecting apparatus of power station boiler air door driver as claimed in claim 1, is characterized in that: described travelling car (20) is also equipped with handrail (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210139311.7A CN103389217B (en) | 2012-05-08 | 2012-05-08 | Power station boiler air door driver torque detecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210139311.7A CN103389217B (en) | 2012-05-08 | 2012-05-08 | Power station boiler air door driver torque detecting apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103389217A CN103389217A (en) | 2013-11-13 |
| CN103389217B true CN103389217B (en) | 2016-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210139311.7A Active CN103389217B (en) | 2012-05-08 | 2012-05-08 | Power station boiler air door driver torque detecting apparatus |
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| CN (1) | CN103389217B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2081526U (en) * | 1990-11-09 | 1991-07-24 | 重庆大学 | Multi-functional coupling shaft section type torque and speed transducer |
| CN2690876Y (en) * | 2004-01-15 | 2005-04-06 | 徐州发电厂 | Automatic test system for boiler cold state test |
| CN101105416A (en) * | 2007-06-25 | 2008-01-16 | 谭光荣 | Electromechanical displacement type torque direct inspection controller |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005274534A (en) * | 2004-03-26 | 2005-10-06 | Aisin Seiki Co Ltd | Torque detection device |
| US7788985B2 (en) * | 2008-07-30 | 2010-09-07 | Horiba Instruments Incorporated | Rotational testing system |
-
2012
- 2012-05-08 CN CN201210139311.7A patent/CN103389217B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2081526U (en) * | 1990-11-09 | 1991-07-24 | 重庆大学 | Multi-functional coupling shaft section type torque and speed transducer |
| CN2690876Y (en) * | 2004-01-15 | 2005-04-06 | 徐州发电厂 | Automatic test system for boiler cold state test |
| CN101105416A (en) * | 2007-06-25 | 2008-01-16 | 谭光荣 | Electromechanical displacement type torque direct inspection controller |
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| Publication number | Publication date |
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| CN103389217A (en) | 2013-11-13 |
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