CN213810677U - Coke cleaning system for heating surface of boiler - Google Patents
Coke cleaning system for heating surface of boiler Download PDFInfo
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- CN213810677U CN213810677U CN202022710588.3U CN202022710588U CN213810677U CN 213810677 U CN213810677 U CN 213810677U CN 202022710588 U CN202022710588 U CN 202022710588U CN 213810677 U CN213810677 U CN 213810677U
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- decoking
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Abstract
The utility model discloses a boiler heating surface decoking system, including the DCS system, decoking controller and the decoking device that links to each other in proper order, first decoking arm degree of freedom piece, second decoking arm degree of freedom piece, first decoking arm, third decoking arm degree of freedom piece, second decoking arm, fourth decoking arm degree of freedom piece and decoking instrument, be provided with displacement sensor on the decoking device, displacement sensor links to each other with the DCS system, first decoking arm degree of freedom piece, second decoking arm degree of freedom piece, third decoking arm degree of freedom piece, fourth decoking arm degree of freedom piece and DCS system all link to each other with the decoking controller. The system shortens the coke cleaning waiting time, does not need the cooling of the hearth, does not need workers to set up a scaffold in the furnace at the height of about 50 meters, avoids the high-altitude operation in a closed environment, does not need the workers to enter the hearth, eliminates the potential safety hazard of the high-altitude operation of the workers, and improves the working environment of the workers.
Description
Technical Field
The utility model belongs to the thermal power field relates to a boiler receives hot side coke cleaning system.
Background
In the operation process of the boiler, coking can occur on the heating surface, particularly, more power plants are used for blending coal at present, most of the power plants have various kinds of raw coal, and when the ash melting point of the blended coal in the power plants is low, the heating surface of the boiler is easy to coke. The heating surface of the screen superheater and the heating surface of the final superheater are arranged at the upper part of the hearth, the arrangement positions are high, the flame temperature is also high, and the heating surfaces are easy to coke. The heating surface of the platen superheater and the heating surface of the final superheater are difficult to clean after coking, and can be reached only by entering a hearth and erecting a scaffold after the boiler is cooled. The method has the advantages that the scaffold is erected to wait for cooling of the boiler, the time of 3-4 days is generally needed, the number of waiting days is large, the scaffold is erected at the high altitude of about 50 meters, the working risk is high, the time consumed by erecting the scaffold in the boiler is long, after the scaffold is erected, workers work at the high altitude of about 50 meters, the method belongs to the high altitude work in a closed environment, the working risk is high, the coke cleaning workload is large, a large amount of ash and dust is generated in the coke cleaning process, and the health of the workers is not facilitated. The boiler burns easily-coked raw coal, the heating surface of the screen superheater and the heating surface of the final superheater do not carry out coke cleaning work for a long time, coke blocks can fall off, and the falling large coke blocks can damage a water cooling wall and influence the safe operation of a unit.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a coke cleaning system for the heating surface of a boiler, which can effectively reduce the number of days for blowing out the coke cleaning boiler, avoid the workers to work high above the ground in a closed space and eliminate the falling risk of the workers; the dust is prevented from being sucked by workers in the hearth, so that the body health is prevented from being influenced; the burning of the boiler, coking coal easily falling off from a large coke block and damaging a water-cooled wall are avoided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a boiler heating surface coke cleaning system, including the DCS system, the coke cleaning controller and the coke cleaning device that links to each other in proper order, first coke cleaning arm degree of freedom spare, second coke cleaning arm degree of freedom spare, first coke cleaning arm, third coke cleaning arm degree of freedom spare, second coke cleaning arm, fourth coke cleaning arm degree of freedom spare and coke cleaning instrument, the last displacement sensor that is provided with of coke cleaning device, displacement sensor and DCS system link to each other, first coke cleaning arm degree of freedom spare, second coke cleaning arm degree of freedom spare, third coke cleaning arm degree of freedom spare, fourth coke cleaning arm degree of freedom spare and DCS system all link to each other with the coke cleaning controller.
The utility model discloses further improvement lies in, and the decoking device is connected with decoking instrument servo motor, and decoking instrument servo motor links to each other with the DCS system.
The utility model discloses further improvement lies in, and the decoking device is connected with decoking device driving motor, and decoking device driving motor links to each other with the DCS system.
The utility model discloses a further improvement lies in, and fourth coke cleaning arm degree of freedom spare passes through the decoking instrument connecting piece with the decoking instrument and links to each other.
The utility model discloses a further improvement lies in, and the decoking device sets up on strutting arrangement, and strutting arrangement includes first strutting arrangement and second strutting arrangement.
The utility model discloses further improvement lies in, a plurality of cameras and lighting device are installed to the device of decoking.
The utility model discloses a further improvement lies in, displacement sensor is corresponding with the coke cleaning tube panel position of treating the coke cleaning.
The utility model is further improved in that the coke cleaning tool is in the shape of an arc.
The utility model is further improved in that coke falling guide plates are arranged at two ends of the coke cleaning tool.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a coke cleaning device, first coke cleaning arm degree of freedom spare, second coke cleaning arm degree of freedom spare, first coke cleaning arm, third coke cleaning arm degree of freedom spare, second coke cleaning arm, fourth coke cleaning arm degree of freedom spare and the instrument of cleaning coke that link gradually, rotate the instrument of cleaning coke to the vertical position through fourth coke cleaning arm degree of freedom spare, rotate second coke cleaning arm to the vertical position through third coke cleaning arm degree of freedom spare, rotate first coke cleaning arm to the vertical position through second coke cleaning arm degree of freedom spare, it is rotatory with the device of cleaning coke through first coke cleaning arm degree of freedom spare, move the device of cleaning coke to the plane parallel with the coke cleaning tube screen; rotating a first coke cleaning arm of the coke cleaning device through a second coke cleaning arm degree of freedom component, then rotating a second coke cleaning arm of the coke cleaning device through a third coke cleaning arm degree of freedom component, and moving a coke cleaning tool to a coke cleaning position through the matching adjustment of the first coke cleaning arm and the second coke cleaning arm; and starting the driving decoking tool to work through the DCS, and performing decoking operation. This system has shortened the latency of decoking, do not need the furnace cooling, the staff need not set up the interior scaffold frame of stove at high about 50 meters high altitude, the staff need not carry out the work of decoking at high about 50 meters high altitude, the high altitude construction of enclosed environment has been avoided, the staff need not get into furnace, eliminate staff's high altitude construction's potential safety hazard, avoid a large amount of lime-ash, the dust that the staff contact decoking process produced, staff's operational environment has been improved, the staff only need operate the decoking device in the DCS system, but through the work process of camera remote monitoring decoking device, can accomplish the work of decoking. The decoking process of the decoking device can be conveniently carried out after the furnace is shut down, so that the situation that the heating surface of the screen superheater and the heating surface of the final superheater do not carry out decoking work for a long time and a large coke block is dropped to crush a water cooling wall seriously, so that the water cooling wall is cracked or leaked to cause the shutdown of a unit and influence the safe operation of the unit can be prevented.
Furthermore, the decoking tool is in an arc shape and made of wear-resistant metal, the arc shape can ensure that the tube walls of the decoking tube panels of the heating surface of the platen superheater and the heating surface of the final superheater are not damaged when the decoking tool is contacted with the decoking tube panels, and the outer edge of the arc shape forms a vertical surface, so that coke blocks can be conveniently removed.
Furthermore, the two ends of the arc-shaped coke cleaning tool are provided with the coke falling guide plates which incline inwards, the guide plates which incline inwards can ensure that the coke blocks which fall off can change the direction through the guide plates and fall into the slag removal system in the coke cleaning process, and the coke blocks can not fall into the coke cleaning device, so that the coke cleaning device 1 can work normally.
Furthermore, the working condition of the coke cleaning tool can be monitored by arranging the lighting device and the camera.
The utility model discloses a boiler receives hot side coke cleaning device is when concrete operation, 24h backs are blown out to the boiler, coke cleaning device can carry out the cleaning work of screen superheater receiving surface and final superheater receiving surface coke piece, the latency of coke cleaning has been shortened, do not need the furnace cooling, the staff need not set up the interior scaffold frame in high about 50 meters high altitude, the staff need not carry out coke cleaning work at high about 50 meters high altitude, the high altitude construction of enclosed environment has been avoided, the staff need not get into furnace, eliminate staff's high altitude construction's potential safety hazard, avoid a large amount of lime-ash, the dust that the staff contact coke cleaning process produced, staff's operational environment has been improved, the staff only needs to operate coke cleaning device in the DCS system, but remote monitoring coke cleaning device's working process, can accomplish coke cleaning work. The decoking process of the decoking device can be conveniently carried out after the furnace is shut down, so that the situation that the heating surface of the screen superheater and the heating surface of the final superheater do not carry out decoking work for a long time and a large coke block is dropped to crush a water cooling wall seriously, so that the water cooling wall is cracked or leaked to cause the shutdown of a unit and influence the safe operation of the unit can be prevented.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a view of the coke cleaning apparatus attachment;
FIG. 3 is a three-view illustration of a decoking tool; wherein, (a) is a front view, (b) is a left view, and (c) is a top view.
FIG. 4 is a schematic view of a platen superheater heating surface, a final superheater heating surface coke cleaning tube panel and deslagging;
fig. 5 is a schematic diagram of a control system.
The system comprises a coke cleaning device 1, a coke cleaning device driving motor 2, a displacement sensor 3, a first camera 41, a second camera 42, a first lighting device 51, a second lighting device 52, a screen superheater heating surface 6, a final superheater heating surface 7, a coke cleaning tube screen 8, a first coke cleaning arm 9, a second coke cleaning arm 10, a coke cleaning arm degree of freedom piece 11, a first coke cleaning arm degree of freedom piece 111, a second coke cleaning arm degree of freedom piece 112, a third coke cleaning arm degree of freedom piece 113, a fourth coke cleaning arm degree of freedom piece 114, a coke cleaning tool connecting piece 12, a coke cleaning tool 13, a coke cleaning tool servo motor 14, a first supporting device 151, a second supporting device 152, a deslagging system 16, a slag bin 17, a coke cleaning controller 18 and a DCS 19.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 5, the boiler heating surface decoking system comprises a decoking device 1, a decoking device driving motor 2, a displacement sensor 3, a camera 4, an illuminating device 5, a platen superheater heating surface 6, a final superheater heating surface 7, a decoking tube panel 8, a first decoking arm 9, a second decoking arm 10, a decoking arm degree of freedom piece 11, a decoking tool connecting piece 12, a decoking tool 13, a decoking tool servo motor 14, a supporting device 15, a deslagging system 16, a slag bin 17, a decoking controller 18 and a DCS system 19.
One end of the decoking device 1 is provided with a decoking device driving motor 2, the other end is connected with a first degree-of-freedom part 111, the first degree-of-freedom part 111 is connected with a second degree-of-freedom part 112, the second degree-of-freedom part 112 is connected with one end of a first decoking arm 9, the other end of the first decoking arm 9 is connected with one end of a second decoking arm 10 through a third degree-of-freedom part 113, the other end of the second decoking arm 10 is connected with a decoking arm degree-of-freedom part 114, the decoking arm degree-of-freedom part 114 is connected with one end of a decoking tool connecting piece 12, the other end of the decoking tool connecting piece 12 is provided with a decoking tool 13, and one side of the decoking tool 13 is provided with a decoking tool servo motor 14.
In addition, a plurality of cameras 4 and lighting devices 5 are installed on the coke cleaning device 1. The illumination device 5 includes a first illumination device 51 and a second illumination device 52, and the camera 4 includes a first camera 41 and a second camera 42.
The coke cleaning device driving motor 2 controls the coke cleaning device 1 to move forwards and backwards, the coke cleaning tool servo motor 14 drives the coke cleaning tool 13 to work, 4 coke cleaning arm freedom degree parts 11 are respectively a first coke cleaning arm freedom degree part 111, a second coke cleaning arm freedom degree part 112, a third coke cleaning arm freedom degree part 113 and a fourth coke cleaning arm freedom degree part 114, the coke cleaning device 1, the first coke cleaning arm freedom degree part 111, the second coke cleaning arm freedom degree part 112, the first coke cleaning arm 9, the third coke cleaning arm freedom degree part 113, the second coke cleaning arm 10, the fourth coke cleaning arm freedom degree part 114, the coke cleaning tool connecting part 12 and the coke cleaning tool 13 are sequentially connected, the coke cleaning device 1 is arranged on the supporting device 15, the supporting device 15 comprises a first supporting device 151 and a second supporting device 152, and the first supporting device 151 and the second supporting device 152 ensure the stability of the coke cleaning device 1.
The tube panels which need to be decoked on the heating surface 6 of the platen superheater and the heating surface 7 of the final superheater are collectively called as a plurality of decoking tube panels 8, and the number of the decoking tube panels 8 is 20-50.
After the unit stops transporting, need not set up in the stove scaffold frame and platform, need not open boiler manhole door, the staff only need operate on DCS system 19, can accomplish the decoking process.
The length of the first decoking arm 9 and the length of the second decoking arm 10 are both 1.5 m, and the decoking controller 18 controls the operation of the decoking arm freedom part 11 to move the decoking tool 13 to the working position. The first cleaning arm degree of freedom piece 111 realizes 360 degrees of overall rotation of the cleaning device 1, the second cleaning arm degree of freedom piece 112 degree of freedom realizes 360 degrees of rotation of the first cleaning arm 9, the third cleaning arm degree of freedom piece 113 degree of freedom realizes 360 degrees of rotation of the second cleaning arm 10, and the fourth cleaning arm degree of freedom piece 114 degree of freedom realizes 360 degrees of rotation of the cleaning tool connecting piece 12.
The position of each coke cleaning tube panel 8 corresponds to a displacement sensor 3 number, when a certain coke cleaning tube panel 8 needs to be cleaned, the number of the displacement sensor 3 corresponding to the coke cleaning tube panel 8 is input into the DCS system 19, when the coke cleaning device driving motor 2 drives the coke cleaning device 1 to advance to the coke cleaning tube panel 8, the DCS system 19 receives the signal of the displacement sensor 3, the coke cleaning device driving motor 2 stops working, and the coke cleaning device 1 moves in place.
The utility model discloses a working method of boiler heating surface coke cleaning system does: after the decoking tube panel moves to the tube panel 8 to be decoked, the DCS 19 sends an instruction to the decoking controller 18, the decoking controller 18 controls the first decoking arm degree of freedom piece 111, the second decoking arm degree of freedom piece 112, the third decoking arm degree of freedom piece 113 and the fourth decoking arm degree of freedom piece 114, the decoking tool connecting piece 12 and the decoking tool 13 connected with the decoking tool connecting piece are rotated to the vertical position through the fourth decoking arm degree of freedom piece 114, the second decoking arm 10 is rotated to the vertical position through the third decoking arm degree of freedom piece 113, the first decoking arm 9 is rotated to the vertical position through the second decoking arm degree of freedom piece 112, the decoking device 1 is integrally rotated through the first decoking arm degree of freedom piece 111, and the decoking device 1 is moved to the plane parallel to the decoking tube panel 8. The first decoking arm 9 of the decoking device 1 is rotated through the second decoking arm degree of freedom component 112, then the second decoking arm 10 of the decoking device 1 is rotated through the third decoking arm degree of freedom component 113, and the decoking tool connecting piece 12 is moved to the decoking position through the matching adjustment of the first decoking arm 9 and the second decoking arm 10; the coke cleaning tool connecting piece 12 is rotated through the fourth coke cleaning arm freedom degree piece 114, and the coke cleaning tool 13 is positioned at the coke cleaning accurate position of the coke cleaning tube panel 8.
In the working process of the coke cleaning device 1, the lighting device 5 is started, the camera 4 is used for monitoring, the second 52 lighting device is matched with the second 42 camera to monitor the whole working condition of the coke cleaning device 1, the first lighting device 51 is matched with the first 41 camera to monitor the working condition of the coke cleaning tool 13, and after the coke cleaning device 1 reaches the accurate coke cleaning position of the coke cleaning tube screen 8, the DCS 19 is used for starting the servo motor 14 of the coke cleaning tool to drive the coke cleaning tool 13 to work so as to carry out coke cleaning operation.
Referring to (a), (b) and (c) in fig. 3, the decoking tool 13 is in the shape of an arc made of wear-resistant metal, the arc can ensure that the tube walls of the decoking tube panel 8 of the heating surface 6 of the platen superheater and the heating surface 7 of the final superheater are not damaged when the decoking tool 13 contacts the decoking tube panel 8, and the outer edge of the arc forms a vertical surface, so that coke blocks can be conveniently removed. At the both ends of circular arc shape decoking instrument 13, be provided with the burnt guide plate that falls of inward sloping, the guide plate of inward sloping can guarantee at the decoking in-process, and the burnt piece that falls passes through guide plate redirecting, falls to deslagging system 16 in, and burnt piece can not fall in decoking device 1, guarantees that decoking device 1 normally works.
When the coke cleaning device 1 is used for coke cleaning operation, the slag removal system 16 is started, coke blocks falling during coke cleaning are conveyed to the slag bin 17 and are transported away by an automobile.
The utility model discloses a system has shortened the latency of decoking, does not need the furnace cooling, and the staff need not set up the interior scaffold frame in high about 50 meters high altitude, and the staff need not carry out the work of decoking at high about 50 meters high altitude. Avoided the high altitude construction of enclosed environment, the staff need not get into furnace, eliminated staff's high altitude construction's potential safety hazard, avoided a large amount of lime-ash, the dust that the staff contact decoking process produced, improved staff's operational environment, the staff only needs to operate the decoking device in DCS system, but through the work process of camera remote monitoring decoking device, can accomplish the work of decoking. The decoking process of the decoking device can be conveniently carried out after the furnace is shut down, so that the situation that the heating surface of the screen superheater and the heating surface of the final superheater do not carry out decoking work for a long time and a large coke block is dropped to crush a water cooling wall seriously, so that the water cooling wall is cracked or leaked to cause the shutdown of a unit and influence the safe operation of the unit can be prevented.
Claims (9)
1. The utility model provides a boiler heating surface decoking system, its characterized in that, including DCS system (19), decoking controller (18) and decoking device (1), first decoking arm degree of freedom spare (111), second decoking arm degree of freedom spare (112), first decoking arm (9), third decoking arm degree of freedom spare (113), second decoking arm (10), fourth decoking arm degree of freedom spare (114) and decoking instrument (13) that link to each other in proper order, be provided with displacement sensor (3) on decoking device (1), displacement sensor (3) link to each other with DCS system (19), first decoking arm degree of freedom spare (111), second decoking arm degree of freedom spare (112), third decoking arm degree of freedom spare (113), fourth decoking arm degree of freedom spare (114) and DCS system (19) all link to each other with decoking controller (18).
2. The boiler heating surface decoking system according to claim 1, characterized in that the decoking device (1) is connected with a decoking tool servo motor (14), and the decoking tool servo motor (14) is connected with a DCS system (19).
3. The system for decoking the heating surface of the boiler as claimed in claim 1, characterized in that the decoking device (1) is connected with a decoking device driving motor (2), and the decoking device driving motor (2) is connected with a DCS system (19).
4. The system for decoking the heating surface of the boiler as claimed in claim 1, characterized in that the fourth decoking arm degree of freedom member (114) is connected to the decoking tool (13) via the decoking tool connection member (12).
5. The system for decoking the heating surface of the boiler as claimed in claim 1, characterized in that the decoking device (1) is arranged on a supporting device (15), and the supporting device (15) comprises a first supporting device (151) and a second supporting device (152).
6. The system for decoking the heating surface of the boiler as claimed in claim 1, characterized in that the decoking device (1) is provided with a plurality of cameras (4) and lighting devices (5).
7. The system for decoking the heating surface of the boiler as claimed in claim 1, characterized in that the displacement sensor (3) corresponds to the position of the decoking tube panel (8) to be decoked.
8. The system for decoking the heating surface of the boiler as claimed in claim 1, characterized in that the decoking tool (13) is in the shape of a circular arc.
9. The boiler heating surface decoking system according to claim 8, characterized in that decoking baffles are arranged at both ends of the decoking tool (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022710588.3U CN213810677U (en) | 2020-11-20 | 2020-11-20 | Coke cleaning system for heating surface of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022710588.3U CN213810677U (en) | 2020-11-20 | 2020-11-20 | Coke cleaning system for heating surface of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213810677U true CN213810677U (en) | 2021-07-27 |
Family
ID=76938186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022710588.3U Active CN213810677U (en) | 2020-11-20 | 2020-11-20 | Coke cleaning system for heating surface of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213810677U (en) |
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2020
- 2020-11-20 CN CN202022710588.3U patent/CN213810677U/en active Active
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