CN103389217A - Power station boiler air door driver detecting method and torque detecting device - Google Patents
Power station boiler air door driver detecting method and torque detecting device Download PDFInfo
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- CN103389217A CN103389217A CN2012101393117A CN201210139311A CN103389217A CN 103389217 A CN103389217 A CN 103389217A CN 2012101393117 A CN2012101393117 A CN 2012101393117A CN 201210139311 A CN201210139311 A CN 201210139311A CN 103389217 A CN103389217 A CN 103389217A
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- air door
- door driver
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- torque
- driving lever
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Abstract
The invention relates to the field of power station boiler air door driver detection, in particular to a power station boiler air door driver detecting method and a torque detecting device. The power station boiler air door driver detecting method comprises the step of connecting a torque output shaft of an air door driver and the torque detecting device, and the step of opening a drive control point detecting switch of the air door driver, observing a torque value output by the air door driver, carrying out judgment according to the torque value and replacing or maintaining the faulted air door driver. The movable torque detecting device of the power station boiler air door driver is composed of a torque detecting mechanism and a movable trolley. Whether the air door driver works normally or not is judged by detecting the torque output by the air door driver, the torque detecting device can be used on site to help a worker to know the working state of the air door driver and provide data fast, the labor intensity of the worker is reasonably relieved, unnecessary economic losses caused when a power plant generator set is maintained are effectively reduced, and fault removal time is shortened.
Description
Technical field
The present invention relates to boiler of power plant air door driver detection field, relate in particular to a kind of boiler of power plant air door driver detection method and device.
Background technology
Boiler of power plant air door driver is to carry out the device of regulation to being arranged on baffle plate in air channel, in power plant, uses extensively.Boiler of power plant air door driver can realize that in boiler combustion, the required air quantity of each system is regulated.In boiler combustion process, it is an important parameter that air quantity is regulated, and the flux matched bad meeting of air quantity and coal directly affects the economy of boiler combustion; Air quantity is regulated badly at burner hearth, also can cause the security incident of boiler flameout or blast, thus boiler of power plant air door driver at the scene job requirement accurately, reliable.
Existing air door driver is installed as shown in Figure 1, and air door driver 1 is connected with transmission arm 3 by moment of torsion transmitter shaft 2, and transmission arm 3 drives the baffle plate 4 of air door.Boiler of power plant air door driver is at the scene in practical work process, can not reach work requirements because of many factors, such as the air door driver 1 in boiler of power plant burner hearth wind pressure control system just occurred because of the moment of torsion usable range improper, baffle plate 4 apertures that drive are excessive, while causing fan starting, electric current is excessive, air quantity also bigger than normal can not meeting the demands and do over again the maintenance problem; In boiler milling system, especially repeatedly, many coal pulverizers are little because of the moment of torsion output of boiler air door driver 1, baffle plate 4 apertures are too small, little abnormal of air quantity.
Air quantity is controlled very important for boiler combustion, and the General Maintenance of boiler of power plant air door driver,, because can't the torsional forces of its driving be detected, detect so only it is driven aperture at present.Measuring opening does not represent that normally the moment of torsion of the actual driving of boiler air door driver is normal, just cause the abnormal of air quantity control on the torsional forces abnormal belt after load, so because of the detection means that there is no need, the abnormal fault of boiler of power plant air door driver can't be carried out preventative evading because of the maintainer; The control of boiler air quantity also can't provide the judgement data to carry out differentiating fast when abnormal be that boiler air door driver moment of torsion causes or the interior panelling fault extremely, the disconnected equipment that need to stop whole zone while causing overhauling of recurrent erroneous judgement enters air channel and checks, has enlarged the fault handling scope; Boiler of power plant 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, the dismounting difficulty, also waste the quality time of eliminating fault in service the carrying out when a large amount of human and material resources have been wasted in the replacing of platform spare of genset, affected genset normal power generation amount.Therefore how to overcome and disperse to be arranged on on-the-spot each regional boiler of power plant air door driver, at present maintenance and during fault handling without direct judging means, the problems such as troubleshooting time is long are badly in need of taking some countermeasures, namely normal to guarantee that boiler of power plant air door driver comes into operation, the air quantity when genset normally moves.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of boiler of power plant air door driver detection method and torque detecting apparatus, judge by the moment of torsion that detects the output of air door driver whether the air door driver works, facilitate the maintenance to air quantity system in the boiler of power plant genset, reduced troubleshooting time.
The present invention is achieved in that a kind of boiler of power plant air door driver detection method, at first the torque output shaft of air door driver is connected with torque detecting apparatus, then open the driving of air door driver and control the spot check switch, observe the torque value of air door driver output, make following selection according to torque value, 1) when torque value is in normal range, close the gauge tap of air door driver, with air door driver return, remove torque detecting apparatus, the air door driver detects and finishes, and provides the calibration tails list; 2) when torque value is abnormal, close the gauge tap of air door driver, remove torque detecting apparatus, the air door driver detects and finishes, and this air door driver is changed or keeped in repair.
The portable torque detecting apparatus of a kind of boiler of power plant air door driver, formed by 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, the spline engagement cover is arranged on movable support frame by axle sleeve, and described laser instrument is arranged on the place, axle center in the spline engagement cover; Spline engagement cover is by spline drived assembly and the interlock of spline engagement cover power driving lever, and described torsion indicating mechanism is arranged on casing, and described spline engagement cover power driving lever is by pointer power driving lever drive torsion indicating mechanism; Described lifting jack is connected with movable support frame, and described centering adjusting bolt dish is arranged on outside casing, and the outer wall that the transmission shaft of centering adjusting bolt dish passes casing is connected with movable support frame.
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 the spline drived assembly, and the other end symmetria bilateralis of spline engagement cover power driving lever is installed a pair of balance pull-spring; Described pointer power driving lever one end is arranged in chute on spline engagement cover power driving lever, and the pointer power driving lever other end links with the torsion pointer.
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 the 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.
Handrail also is housed on described travelling car.
Boiler of power plant air door driver detection method of the present invention and torque detecting apparatus judge by the moment of torsion that detects the output of air door driver whether the air door driver works, use at the scene can help the operating personnel to understand the working condition of air door driver, real-time follow-up and the control of realization to equipment state, have positive effect for the management level that improve equipment; Its larger meaning also is when the control of air quantity system goes wrong, the method and device can supply data by Quick, stop originally in the detection means without corresponding standard, can't judge the duty of air door driver, make the practical problems that can only blindly enlarge the site examining and repairing scope.The present invention can also effectively reduce the power generator group causes when maintenance unnecessary economic loss rationally reducing operator's the labour intensity while, has facilitated the maintenance to air quantity system in the boiler of power plant genset, has reduced troubleshooting time.
Description of drawings
Fig. 1 is that existing air door driver is installed connection layout;
Fig. 2 is that the portable torque detecting apparatus structure of boiler of power plant air door driver of the present invention master looks schematic diagram;
Fig. 3 is the portable torque detecting apparatus structure of boiler of power plant air door driver of the present invention schematic top plan view;
Fig. 4 is that schematic diagram is looked on the portable torque detecting apparatus structure right side of boiler of power plant air door driver of the present invention;
Fig. 5 is that in the present invention, the structure master of torsion indicating mechanism looks schematic diagram;
Fig. 6 is that in the present invention, schematic diagram is looked on the torsion indicating mechanism structure right side;
Workflow diagram when Fig. 7 detects for the portable torque detecting apparatus of use boiler of power plant air door driver of the present invention.
in figure: 1 air door driver, 2 moment of torsion transmitter shafts, 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, further set forth the present invention.Should be understood that these embodiment only are not used in and limit the scope of the invention for explanation the present invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's statement, these equivalent form of values fall within the application's appended claims limited range equally.
A kind of boiler of power plant air door driver detection method, at first the torque output shaft of air door driver is connected with torque detecting apparatus, then open the driving of air door driver and control the spot check switch, observe the torque value of air door driver output, according to torque value, make following selection, 1) when torque value is in normal range, close the gauge tap of air door driver,, with air door driver return, remove torque detecting apparatus, the air door driver detects and finishes, and provides the calibration tails list; 2) when torque value is abnormal, close the gauge tap of air door driver, remove torque detecting apparatus, the air door driver detects and finishes, and this air door driver is changed or keeped in repair, and provides the calibration tails list.
as Fig. 2, 3, shown in 4, the portable torque detecting apparatus of a kind of boiler of power plant air door driver, formed by 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 place, axle center in spline engagement cover 7, spline engagement cover 7 is by spline drived assembly 11 and 12 interlocks of spline engagement cover power driving lever, and described torsion indicating mechanism 13 is arranged on casing 6, and described spline engagement cover power driving lever 12 drives torsion indicating mechanisms 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 outer wall that the transmission shaft of centering adjusting bolt dish 16 passes casing 6 is connected with movable support frame 9, in the present embodiment, described centering adjusting bolt dish 16 is provided with two pairs altogether, and two pairs of centering adjusting bolt dish 16 symmetries are arranged on casing 6 both sides.
The portable torque detecting apparatus of boiler of power plant 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 1 ends are connected with spline drived assembly 11, and the other end symmetria bilateralis of spline engagement cover power driving lever 12 is installed a pair of balance pull-spring 133; Described pointer power driving lever 14 1 ends are arranged in chute on spline engagement cover power driving lever 12, and pointer power driving lever 14 other ends link with torsion pointer 131.While producing the torsional forces variation under the drive of boiler of power plant air door driver 1 when pick-up unit, move 12 pairs of spline engagement cover power driving levers, balance pull-spring 133 produces distortion, pointer power driving lever 14 produces interlock in the chute of spline engagement cover power driving lever 12, driving torsion pointer 131 rotates, by the index dial 132 shown torque values of reading, when quitting work, boiler air door driver 1 does the used time without torsional forces, under the effect of balance pull-spring 133, torsion pointer 131 is got back to " 0 " position.
Generally, in order conveniently 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 are 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.
, in order to facilitate the movement of the portable torque detecting apparatus of this boiler of power plant air door driver, on described travelling car 20, handrail 21 also is housed.
When actual the 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; Make moment of torsion testing agency and air door driver 1 carry out rough contraposition by travelling car 20; Spline engagement cover 7 matches with moment of torsion output spline 5, carries out centering by laser instrument 10 and checks; When the horizontal position of moment of torsion testing agency and moment of torsion output spline 5 not on time, can be by the position of centering adjusting bolt dish 16 adjustment movable support frames 9; When moment of torsion testing agency does not align with the height of moment of torsion output spline 5, can push up by jin 15 lifting pin 19 liftings, carry out upper and lower and aim at; Above contraposition process confirms by laser instrument 10 whether laser is aimed at the mid point of moment of torsion output spline 5 end faces of air door driver 1 and carried out; After contraposition work is completed, push away and make spline engagement cover 7 and 5 engagements of moment of torsion output spline in travelling car 20 is continued; Drive the aperture spot check maintenance switch of boiler of power plant air door driver 1, spline engagement cover power driving lever 12 can drive pointer power driving lever 14, with the joining torsion pointer 131 of pointer power driving lever 14, can output situation actual in the moment of torsion of air door driver 1 show tested torque value; Do the used time when air door driver 1 quits work without torsional forces, torsion pointer 131 resets and sets to 0; The portable torque detecting apparatus of boiler of power plant air door driver of the present invention and the whole measuring process of method, according to the torque value of the 09 torsion pointer indication of Fig. 2, judge whether to meet the requirements; Undesirable, require to close boiler of power plant air door driver control switch, torque detecting apparatus withdraws from, and the air door driver is changed or keeped in repair; Meet the requirements, close boiler of power plant air door driver control switch, with air door driver return, torque detecting apparatus withdraws from, and this air door driver is dropped into the genset normal operation.Use finally boiler of power plant air door driver detection method of the present invention and torque detecting apparatus to check end-of-job, provide boiler of power plant air door driver calibration tails list.
Claims (5)
1. boiler of power plant air door driver detection method, it is characterized in that: at first the torque output shaft of air door driver is connected with torque detecting apparatus, then open the driving of air door driver and control the spot check switch, observe the torque value of air door driver output, according to torque value, make following selection, 1) when torque value is in normal range, close the gauge tap of air door driver,, with air door driver return, remove torque detecting apparatus, the air door driver detects and finishes, and provides the calibration tails list; 2) when torque value is abnormal, close the gauge tap of air door driver, remove torque detecting apparatus, the air door driver detects and finishes, and this air door driver is changed or keeped in repair.
2. the portable torque detecting apparatus of a boiler of power plant air door driver, it is characterized in that: by moment of torsion testing agency and travelling car two parts, formed, 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 place, axle center in spline engagement cover (7), spline engagement cover (7) is by spline drived assembly (11) and spline engagement cover power driving lever (12) interlock, 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), and the outer wall that the transmission shaft of centering adjusting bolt dish (16) passes casing (6) is connected with movable support frame (9).
3. the portable torque detecting apparatus of boiler of power plant 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 ends are connected with spline drived assembly (11), and the other end symmetria bilateralis of spline engagement cover power driving lever (12) is installed a pair of balance pull-spring (133); Described pointer power driving lever (14) one ends are arranged in chute on spline engagement cover power driving lever (12), and pointer power driving lever (14) other end links with torsion pointer (131).
4. the portable torque detecting apparatus of boiler of power plant 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).
5. the portable torque detecting apparatus of boiler of power plant air door driver as claimed in claim 1, is characterized in that: handrail (21) also is housed on described travelling car (20).
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 |
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| Publication Number | Publication Date |
|---|---|
| CN103389217A true CN103389217A (en) | 2013-11-13 |
| CN103389217B CN103389217B (en) | 2016-01-27 |
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| 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 (5)
| 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 |
| US20050210971A1 (en) * | 2004-03-26 | 2005-09-29 | Aisin Seiki Kabushiki Kaisha | Torque-detecting device |
| CN101105416A (en) * | 2007-06-25 | 2008-01-16 | 谭光荣 | Electromechanical displacement type torque direct inspection controller |
| US20100024571A1 (en) * | 2008-07-30 | 2010-02-04 | Horiba Ltd. | Rotational testing system |
-
2012
- 2012-05-08 CN CN201210139311.7A patent/CN103389217B/en active Active
Patent Citations (5)
| 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 |
| US20050210971A1 (en) * | 2004-03-26 | 2005-09-29 | Aisin Seiki Kabushiki Kaisha | Torque-detecting device |
| CN101105416A (en) * | 2007-06-25 | 2008-01-16 | 谭光荣 | Electromechanical displacement type torque direct inspection controller |
| US20100024571A1 (en) * | 2008-07-30 | 2010-02-04 | Horiba Ltd. | Rotational testing system |
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| CN103389217B (en) | 2016-01-27 |
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