CN212204615U - Hearth flame television decoking device - Google Patents
Hearth flame television decoking device Download PDFInfo
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- CN212204615U CN212204615U CN202020754682.6U CN202020754682U CN212204615U CN 212204615 U CN212204615 U CN 212204615U CN 202020754682 U CN202020754682 U CN 202020754682U CN 212204615 U CN212204615 U CN 212204615U
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- decoking
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Abstract
The utility model relates to a furnace combustion monitoring technique specifically is a furnace flame TV decoking device. The device comprises a supporting device fixedly arranged on the outer wall of a hearth, and a detecting device and a decoking device which are arranged on the supporting device; an optical mirror rod of the detection device is cylindrical and is fixedly connected with a mirror rod sliding block through a mirror rod connecting rod; the mirror rod sliding block is sleeved on the guide rail of the supporting device in a sliding manner and is fixedly connected with the first chain of the supporting device; the decoking sleeve of the decoking device is a hollow circular tube, one end of the decoking sleeve penetrates through the supporting plate of the supporting device and extends into the furnace, and the other end of the decoking sleeve is fixedly connected with the decoking sliding block; the decoking sliding block is sleeved on the guide rail in a sliding manner and is fixedly connected with the second chain of the supporting device; the mirror rod motor and the decoking motor are connected with the driving gears of the first chain and the second chain; the decoking sleeve and the optical lens rod are coaxially sleeved, and the optical lens rod can penetrate out of the decoking sleeve and extend into the hearth when moving forward.
Description
Technical Field
The utility model relates to a furnace combustion monitoring technique specifically is a furnace flame TV decoking device.
Background
In large coal-fired utility boilers, flame televisions have become a standard device, which monitors the combustion conditions in the furnace and prevents the fire from extinguishing in the furnace chamber mainly by installing a high-temperature flame detector on the wall of the furnace. The flame television generally adopts endoscopic imaging and needs to penetrate through a water wall tube to extend into a hearth.
The flame television is easily shielded by coking in the furnace during working, so that the image is completely blackened and cannot work, and how to prevent the coking from being enlarged is particularly important for timely decoking. In order to prevent the dust from contaminating the lens and from blocking the driving and reversing device, patent CN201821138905.5 discloses a hearth flame tv set for cleaning the dust between the lens tube and the camera through hole by using compressed gas. Patent CN201820847803.4 discloses a zoom type high-definition flame tv monitor, which realizes high-definition shooting and transmission of images by removing the focusing lens group in the original lens tube, and has a zoom function. On the traditional flame television, the mode of exiting operation and then manually removing coke is generally adopted in consideration of cost factors, and the operation is time-consuming and labor-consuming. In recent years, the functions of the flame television are continuously expanded, and the requirements on the imaging precision and the real-time performance of the flame television are gradually improved, for example, a flame television monitoring system disclosed in patent CN201420250349.6 converts a flame light signal into a current signal and displays the current signal in the form of a brightness light column, so as to replace the existing fire detection probe; as another example, in a flame television monitoring system disclosed in patent cn201420662840.x, a digital processing module is connected to a video output end to analyze and process temperature information and brightness information in flame; for another example, CN94111569.0 discloses a method and a device for detecting the combustion temperature distribution of a furnace chamber of a utility boiler, wherein a color filter with a wavelength is placed in a flame tv imaging light path to detect the distribution of a two-dimensional flame temperature field in the furnace in real time.
In these high precision applications, to ensure the quality of flame tv imaging, the coke block must be removed quickly, which cannot be achieved by manual decoking.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a dispose mechanical decoking sleeve pipe at optical lens pole front end realizes the decoking of flame TV, effectively solves the power plant boiler furnace coking and shelters from the furnace flame TV decoking device of problem to the flame TV formation of image.
The utility model discloses a realize through following technical scheme:
a hearth flame television decoking device comprises a supporting device fixedly arranged on the outer wall of a hearth, and a detecting device and a decoking device which are arranged on the supporting device;
the supporting device comprises a supporting plate fixedly arranged on the outer wall of the hearth, a guide rail arranged perpendicular to the supporting plate, and a first chain and a second chain which are arranged parallel to the guide rail;
the detection device comprises an optical mirror rod, a mirror rod sliding block and a mirror rod motor; the optical mirror rod is cylindrical and is fixedly connected with the mirror rod sliding block through a mirror rod connecting rod; the mirror rod sliding block is sleeved on the guide rail in a sliding manner and is fixedly connected with the first chain; the mirror rod motor is connected with a driving gear of the first chain;
the decoking device comprises a decoking sleeve, a decoking slide block and a decoking motor; the decoking sleeve is a hollow circular tube, one end of the decoking sleeve penetrates through the supporting plate and extends into the furnace, and the other end of the decoking sleeve is fixedly connected with the decoking sliding block through a sleeve connecting rod; the decoking sliding block is sleeved on the guide rail in a sliding manner and is fixedly connected with the second chain; the decoking motor is connected with the driving gear of the second chain;
the decoking sleeve and the optical lens rod are coaxially sleeved, and the optical lens rod can penetrate out of the decoking sleeve and stretch into the hearth when moving forwards.
Preferably, the length of the optical lens is greater than that of the decoking sleeve, the rod diameter of the optical lens is smaller than the inner diameter of the decoking sleeve and is in transition fit, and a sealing gasket is arranged at the sliding connection position of the optical lens and the decoking sleeve.
Preferably, the decoking sleeve is made of high-temperature alloy material, and the bottom of the decoking sleeve is provided with an ash guide groove along a bus.
Preferably, the guide rail is cylindrical, and linear bearings are arranged in the mirror rod sliding block and the decoking sliding block.
Preferably, the first chain and the second chain are arranged along the same straight line, an installation baffle is arranged outside the chains, a decoking stroke switch is fixedly arranged on the installation baffle corresponding to the movement stroke of the decoking sliding block, and a mirror rod stroke switch is fixedly arranged on the installation baffle corresponding to the movement stroke of the mirror rod sliding block.
Preferably, the system also comprises an on-site PLC connected with the detection device and the decoking device, and a remote computer control system interactively connected with the on-site PLC; the local PLC has a plurality of channels for controlling the imaging device and the decoking device respectively.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model adopts the mechanical decoking sleeve arranged at the front end of the optical lens rod to decoke the flame television, the motions of the decoking device and the imaging device are independent and do not interfere with each other, thereby effectively improving the reliability of the device; meanwhile, the decoking motor, the mirror rod motor, the first chain, the second chain, the decoking sliding block, the mirror rod sliding block, the supporting plate and the decoking sleeve can be connected in place at one time through the connecting screw and the flange, adjustment is not needed, and the installation, maintenance and operation are simple and convenient.
Further, the utility model discloses an overall sealing nature is good, and the decoking sleeve is equipped with leads the ash chute, and optics mirror pole and decoking muffjoint department configuration seal ring can be in abominable industrial environment long-term continuous operation.
Further, the utility model discloses a set up linear bearing in decoking slider and mirror pole slider, make decoking slider and mirror pole slider freely slide at the cylinder epaxial. The bearing ball is point-contacted with the shaft, so that the load is small, and the steel ball rotates with extremely small friction resistance, thereby obtaining high-precision stable motion.
Further, the utility model discloses an adopt the remote control decoking with a remote computer control system of PLC interconnect on the spot. When the video signal of the flame television is sent to a remote computer for storage, the remote computer controls the starting, the stopping and the advancing of the motor through a local PLC and a travel switch, and the accurate control of the reciprocating decoking movement distance and the resetting is realized.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of the device according to the embodiment of the present invention.
FIG. 3 is a schematic view of the state of the control device before the decoking operation of the present invention is started.
FIG. 4 is a schematic diagram of the state of the decoking sleeve in the advancing process of the decoking operation of the control device.
Fig. 5 is a schematic view of the state of the control device after the decoking operation of the utility model is completed.
In the figure: 1. the decoking mechanism comprises an optical lens rod, 21 mirror rod connecting rods, 22 sleeve connecting rods, 3 decoking sleeves, 4 supporting plates, 5 decoking sliding blocks, 6 decoking motors, 7 decoking travel switches, 8 mirror rod motors, 9 mirror rod travel switches, 101 first chains, 102 second chains, 11 mirror rod sliding blocks and 12 guide rails.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
The utility model relates to a furnace flame TV decoking device, detailed structure is as shown in figure 1, optics mirror pole 1 be connected with mirror pole slider 11 through mirror pole connecting rod 21, mirror pole slider 11 is connected with first chain 101 simultaneously, moves along guide rail 12 under the drive of mirror pole motor 8, stretches into the inside flame image of shooing of furnace, video signal sends into and saves in the remote computer, prepares for the aftertreatment. The distance of movement of the mirror lever slide 11 on the guide rail 12 is controlled by means of the mirror lever travel switch 9. The guide rail 12 is connected with the support plate 4 and fixed on the outer wall of the hearth, and a through hole matched with the optical lens rod 1 is formed in the middle of the support plate 4;
the decoking sleeve 3 is a hollow circular tube, is sleeved outside the optical lens rod 1 and is made of high-temperature-resistant alloy material, and the bottom of the sleeve is provided with an ash guide groove. The decoking sleeve 3 is connected with the decoking sliding block 5 through a sleeve connecting rod 22, and is driven by the decoking motor 6 to do linear reciprocating motion along the guide rail 12 to impact a coke block to enable the coke block to fall. The decoking sliding block 5 is internally provided with a linear bearing, so that the sliding block can freely slide on the guide rail 12. The moving distance of the decoking sliding block 5 on the guide rail 12 is controlled by the decoking travel switch 7;
the movement of the decoking sleeve 3 and the movement of the optical lens rod 1 are independently driven by different motors and do not interfere with each other. When the optical lens rod 1 enters a hearth, the optical lens rod 1 shoots flame images and sends the flame images to a remote computer, when decoking is needed, a decoking instruction is sent to a local PLC, and the decoking sleeve 3 acts according to the remote decoking instruction; when the optical lens rod 1 exits from the hearth, the decoking sleeve 3 retreats and is locked in a linkage manner.
As shown in fig. 3, 4 and 5, in actual use,
firstly, after the local PLC receives a decoking instruction, the decoking motor 6 is controlled to drive the decoking sliding block 5 to drive the decoking sleeve 3 to move.
And secondly, after the local PLC receives a retreat limit switch reset instruction, the decoking motor 6 is driven to rotate forwards, so that the decoking sleeve 3 moves forwards until the retreat limit switch resets.
And thirdly, after receiving the reset instruction of the forward limit switch, the local PLC drives the decoking motor 6 to rotate reversely, so that the decoking sleeve 3 moves back to a stop position, resets the backward limit switch and sends a decoking completion instruction to the remote computer by the PLC.
Claims (6)
1. A hearth flame television decoking device is characterized by comprising a supporting device fixedly arranged on the outer wall of a hearth, and a detecting device and a decoking device which are arranged on the supporting device;
the supporting device comprises a supporting plate (4) fixedly arranged on the outer wall of the hearth, a guide rail (12) arranged perpendicular to the supporting plate (4), and a first chain (101) and a second chain (102) arranged parallel to the guide rail (12);
the detection device comprises an optical mirror rod (1), a mirror rod sliding block (11) and a mirror rod motor (8); the optical mirror rod (1) is cylindrical and is fixedly connected with the mirror rod sliding block (11) through a mirror rod connecting rod (21); the mirror rod sliding block (11) is sleeved on the guide rail (12) in a sliding manner, and the mirror rod sliding block (11) is fixedly connected with the first chain (101); the mirror rod motor (8) is connected with a driving gear of the first chain (101);
the decoking device comprises a decoking sleeve (3), a decoking slide block (5) and a decoking motor (6); the decoking sleeve (3) is a hollow round pipe, one end of the decoking sleeve penetrates through the support plate (4) and extends into the furnace, and the other end of the decoking sleeve is fixedly connected with the decoking sliding block (5) through a sleeve connecting rod (22); the decoking sliding block (5) is sleeved on the guide rail (12) in a sliding manner, and the decoking sliding block (5) is fixedly connected with the second chain (102); the decoking motor (6) is connected with a driving gear of the second chain (102);
decoking sleeve (3) and optical lens pole (1) coaxial cover establish, when optical lens pole (1) gos forward, can wear out decoking sleeve (3) and stretch into inside the furnace.
2. A hearth flame television decoking device according to claim 1, characterized in that the length of the optical lens rod (1) is greater than the length of the decoking sleeve (3), the rod diameter of the optical lens rod (1) is smaller than the inner diameter of the decoking sleeve (3) and is in transition fit, and a sealing gasket is arranged at the sliding connection position of the optical lens rod (1) and the decoking sleeve (3).
3. A hearth flame television decoking device as claimed in claim 1, characterized in that the decoking sleeve (3) is made of high temperature alloy material, and the bottom of the decoking sleeve is provided with an ash guide groove along the generatrix.
4. A hearth flame TV decoking device according to claim 1, characterized in that the guide rail (12) is cylindrical, and linear bearings are arranged in the mirror rod slide block (11) and the decoking slide block (5).
5. A hearth flame television decoking device according to claim 1, characterized in that the first chain (101) and the second chain (102) are arranged along the same straight line, a mounting baffle is arranged outside the chains, a decoking stroke switch (7) is fixedly arranged on the mounting baffle corresponding to the movement stroke of the decoking slider (5), and a mirror rod stroke switch (9) is fixedly arranged on the mounting baffle corresponding to the movement stroke of the mirror rod slider (11).
6. The hearth flame television decoking apparatus of claim 1, further comprising an on-site PLC connected to the detection means and the decoking means, and a remote computer control system interfaced with the on-site PLC; the local PLC has a plurality of channels for controlling the imaging device and the decoking device respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020754682.6U CN212204615U (en) | 2020-05-09 | 2020-05-09 | Hearth flame television decoking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020754682.6U CN212204615U (en) | 2020-05-09 | 2020-05-09 | Hearth flame television decoking device |
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| Publication Number | Publication Date |
|---|---|
| CN212204615U true CN212204615U (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020754682.6U Active CN212204615U (en) | 2020-05-09 | 2020-05-09 | Hearth flame television decoking device |
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| CN (1) | CN212204615U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473358A (en) * | 2020-05-09 | 2020-07-31 | 中国华能集团有限公司 | Hearth flame television decoking device and control method thereof |
| CN116066850A (en) * | 2022-11-28 | 2023-05-05 | 华能淮阴第二发电有限公司 | Self-cleaning hearth flame television monitoring device |
-
2020
- 2020-05-09 CN CN202020754682.6U patent/CN212204615U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473358A (en) * | 2020-05-09 | 2020-07-31 | 中国华能集团有限公司 | Hearth flame television decoking device and control method thereof |
| CN116066850A (en) * | 2022-11-28 | 2023-05-05 | 华能淮阴第二发电有限公司 | Self-cleaning hearth flame television monitoring device |
| CN116066850B (en) * | 2022-11-28 | 2024-01-12 | 华能淮阴第二发电有限公司 | Self-cleaning hearth flame television monitoring device |
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