CN215217832U - Coking filter imaging and wall observation system - Google Patents
Coking filter imaging and wall observation system Download PDFInfo
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- CN215217832U CN215217832U CN202121504955.2U CN202121504955U CN215217832U CN 215217832 U CN215217832 U CN 215217832U CN 202121504955 U CN202121504955 U CN 202121504955U CN 215217832 U CN215217832 U CN 215217832U
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- 238000004939 coking Methods 0.000 title claims abstract description 56
- 238000003384 imaging method Methods 0.000 title claims abstract description 54
- 230000001681 protective effect Effects 0.000 claims description 14
- 230000005855 radiation Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 230000003993 interaction Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 10
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005235 decoking Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000003331 infrared imaging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
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Abstract
The application discloses coking filter imaging and wall observation system, including the infrared flame imaging device that is used for obtaining the coking image in the thermoelectric boiler, be used for with infrared flame imaging device stretches into or withdraws from furnace's protection device, wherein, infrared flame imaging device that passes through is including the infrared core that is used for the formation of image, the infrared high temperature resistant long shot who is used for gathering the radiant light in the boiler and be used for the decay piece of interior flame radiant energy of decay stove. The system can observe the coking state in the furnace in real time, acquire video image data in real time and improve the detection precision and efficiency.
Description
Technical Field
The utility model belongs to the technical field of thermal power plant's boiler coking monitoring, especially, relate to a coking filter imaging and wall observation system.
Background
Coking of the boiler is a common problem in coal-fired thermal power plants, and can destroy normal combustion working conditions, reduce boiler efficiency, destroy normal water circulation, even cause pipe explosion accidents, and cause blockage of a hearth outlet to stop the boiler in serious conditions, thereby affecting the economical efficiency and safety of boiler operation. At present when thermal power plant boiler furnace decoking, need to send professional technical personnel to observe and predetermine the coking state through seeing the fire door, rely on the experience to decoke again, because the unable accurate judgement coking condition under the hot operating mode, so do not have suitable digital solution, the problem that wherein exists includes: (1) the existing coking monitoring method can only observe the coking condition of the fire observation ports, but the boiler has large volume and limited number of the fire observation ports, and the coking state of the whole hearth cannot be predicted through the limited fire observation ports; (2) due to the fact that the furnace wall cannot be observed directly due to the shielding of the high-temperature flame, the boiler is equivalent to a black box, the existing high-temperature flame television cannot realize flame-transparent observation, has limitation, and cannot perform accurate quantitative judgment on the coking position and the coking degree.
An on-line coking early warning system is provided at present, which indirectly predicts the coking of a boiler by acquiring the temperature data of the back of a water wall and a high-temperature region in a hearth; the indirect measurement mode belongs to the prediction of small sample data, and the prediction of the coking state and degree are not accurate enough and can not be displayed visually.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a coking filter formation of image and wall observation system can survey the interior coking state of stove in real time, and real-time acquisition video image data improves and detects precision and efficiency.
The utility model provides a pair of coking filter imaging and wall observation system, including the infrared flame imaging device that is used for obtaining the coking image in the thermoelectric boiler, be used for with infrared flame imaging device stretches into or withdraws from furnace's protection device, wherein, infrared flame imaging device that passes through is including the infrared core that is used for the formation of image, the infrared high temperature resistant long lens that is used for gathering the radiant light in the boiler and be used for the decay piece of interior flame radiant energy of decay stove.
Preferably, in the coking filter imaging and wall surface observation system, the protection device comprises an upper computer, a power network bridge, a main controller, an electromagnetic valve, a cylinder, a pressure sensor, a temperature sensor, a protective cover, an air pump and an industrial display, wherein the main controller is used for controlling the opening and closing of the electromagnetic valve, receiving pressure and temperature signals, judging whether the pressure and the temperature exceed a set threshold value, outputting pressure and temperature information and displaying the information on the industrial display; the power network bridge is used for connecting the upper computer and the main controller so as to remotely control the main controller through a human-computer interaction interface on the upper computer, the pressure sensor is used for collecting pressure information, the temperature sensor is used for collecting temperature information, the air pump is used as cooling air of the protective cover and an air source of the air cylinder, the electromagnetic valve is opened and closed to control the air cylinder to realize the stretching in and the withdrawing from of the infrared high-temperature resistant long lens, the remote control is realized through the cooperation of the upper computer and the power network bridge, the main controller is used for controlling the switch of the electromagnetic valve, is matched with the air cylinder and the air pump to realize the actions of stretching into a hearth and withdrawing from the hearth, the pressure sensor and the temperature sensor are connected with the main controller, and when the temperature and the air pressure in the protective cover are not within a set threshold range, the main controller automatically controls the electromagnetic valve to realize the action of exiting the hearth.
Preferably, in the coking filter imaging and wall surface observation system, the infrared flame-transmitting imaging device has a digital video network interface, a power supply interface and an analog video interface.
Preferably, in the coking filter imaging and wall surface observation system, the diameter of the interface of the infrared high-temperature resistant long lens is 25 mm.
Preferably, in the coking filter imaging and wall observation system, the industrial-grade display is connected with the infrared flame-penetrating imaging device by using a network cable.
Preferably, in the coking filter imaging and wall surface observation system, the main controller is a PLC controller.
Can know through the above-mentioned description, the utility model provides an above-mentioned coking filter formation of image and wall observation system, because including the infrared flame imaging device that is used for obtaining the coking image in the thermoelectric boiler, be used for with infrared flame imaging device stretches into or withdraws from furnace's protection device, wherein, infrared flame imaging device that passes through is including the infrared core that is used for the formation of image, the infrared high temperature resistant long lens that is used for gathering the radiant light in the boiler and the decay piece that is used for attenuating the interior flame radiant energy of stove, has just so directly observed the image in the thermoelectric boiler, consequently can survey the interior coking state of stove in real time, and real-time acquisition video image data improves detection precision and efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view of an embodiment of a coking filter imaging and wall observation system provided by the present invention;
FIG. 2 is a schematic control diagram of a protection device of a coking filter imaging and wall observation system;
fig. 3 is a schematic view of a specific example of an infrared through flame imaging apparatus.
Detailed Description
The core of the utility model is to provide a coking filter formation of image and wall observation system can survey the interior coking state of stove in real time, and real-time acquisition video image data improves detection precision and efficiency.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a pair of coking filter formation of image and wall observation system's embodiment is shown in figure 1, figure 1 is the utility model provides a pair of coking filter formation of image and wall observation system's embodiment's schematic diagram, this system is including the infrared flame imaging device 1 that is used for obtaining the coking image in the electric boiler, a protection device 2 for stretching into infrared flame imaging device 1 or withdraw from furnace, wherein, infrared flame imaging device 1 is including the infrared core 101 that is used for the formation of image, an attenuation piece 103 that is used for gathering the interior flame radiant light's of boiler infrared high temperature resistant long shot 102 and is used for the interior flame radiant energy of decay stove.
It should be noted that the infrared flame-transmitting imaging device 1 can penetrate the high-temperature flame of the boiler to observe the coking condition of the boiler wall, the infrared high-temperature resistant long lens 102 inside the infrared flame-transmitting imaging device is used for collecting the radiation light in the boiler, the attenuation sheet 103 is used for filtering the specific radiation wave band of the flame of the boiler, so as to realize the function of flame-transmitting observation of the boiler wall, the infrared core 101 is used for receiving the infrared light to realize infrared imaging, further, the infrared camera where the infrared core 101 is located can include a digital video network interface, a power interface and an analog video interface, the diameter of the interface of the infrared high-temperature resistant long lens 102 can be preferably 25mm, the infrared high-temperature resistant long lens 102 has an energy attenuation function, a set of high-temperature resistant optical path system is designed in the lens according to the radiation wave band of the boiler wall, the attenuation sheet 103 is used for attenuating the radiation energy of the flame in the boiler, and the attenuation sheet 103 is installed between the infrared high-temperature resistant long lens 102 and the core, the infrared flame-transmitting imaging device can be connected to an industrial display through a network cable and used for receiving video image data and observing the conditions in the furnace in real time, so that the condition in the furnace can be observed in real time, the condition can be monitored in real time aiming at coking phenomenon by manpower, and the protection device 2 mainly protects the infrared flame-transmitting imaging device 1 and realizes the action of extending the infrared high-temperature-resistant long lens 102 into and out of the hearth.
Can know through the above-mentioned description, the utility model provides an in the embodiment of above-mentioned coking filter imaging and wall observation system, owing to pass through flame imaging device including the infrared that is used for obtaining the coking image in the thermoelectric boiler, a protection device for stretching into or withdraw from furnace with infrared pass through flame imaging device, wherein, infrared pass through flame imaging device is including the infrared core that is used for the formation of image, a high temperature resistant infrared long lens that is used for gathering the radiant light in the boiler and be located infrared long lens and be used for the decay piece of decay stove flame radiant energy, consequently can survey the interior coking state of stove in real time, gather video image data in real time, improve detection accuracy and efficiency.
In a specific embodiment of the above coking filter imaging and wall surface observation system, referring to fig. 2, fig. 2 is a control schematic diagram of a protection device of the coking filter imaging and wall surface observation system, where the protection device 2 may include an upper computer 201 (which may be the above mentioned display device 4), a power network bridge 202, a main controller 203, a solenoid valve 204, an air cylinder 205, a pressure sensor 206, a temperature sensor 207, a protective cover 208, an air pump 209, and an industrial-grade display 210, and the main controller 203 is configured to control opening and closing of the solenoid valve 204, receive pressure and temperature signals, determine whether the pressure and temperature exceed set thresholds, and output pressure and temperature information and display the information on the industrial-grade display 210; the power network bridge 202 is used for connecting the upper computer 201 and the main controller 203, the main controller 203 is remotely controlled through a human-computer interaction interface on the upper computer 201, the pressure sensor 206 is used for collecting pressure information, the temperature sensor 207 is used for collecting temperature information, the air pump 209 is used as cooling air of the protective cover and an air source of the air cylinder 205, the electromagnetic valve 204 is opened and closed to control the air cylinder 205 to realize the extension and the retraction of the infrared high-temperature resistant long lens 102, the main controller 203 is remotely controlled through the cooperation of the upper computer 201 and the power network bridge 202, the main controller 203 is used for controlling the on and off of the electromagnetic valve 204 and is matched with the air cylinder 205 and the air pump 209 to realize the actions of extending into a hearth and retracting out of the hearth, the pressure sensor 206 and the temperature sensor 207 are connected with the main controller 203, when the temperature and the air pressure in the protective cover are not within a set threshold range, the main controller 203 automatically controls the electromagnetic valve 204, the upper computer 201 can display two interfaces, the first is an image processing interface which comprises various image processing algorithms to be selected, calculates the area of a focal block, displays the contents of an original image, a processed image and the like, and the second is a fault diagnosis interface which comprises the display of an identification coking image, the display of a classification result of the coking image, the display of a diagnosis result, the display of a score, the display of an alarm indicator light, the display of a processing method suggestion and the like.
A specific example of the infrared flame-transmitting imaging device adopted in the present application may be as shown in fig. 3, and fig. 3 is a schematic view of a specific example of an infrared flame-transmitting imaging device, the infrared flame-transmitting imaging device includes a camera protective cover handle 301, an infrared camera 302, an infrared long lens 303, a lens fixing ring 304, a lens guide ring 305, a camera outlet hole 306, a camera protective cover 307, a lens protective cover inner body 308, an inner body air inlet 309, a lens protective cover outer body 310, an outer body air inlet 311, a light inlet hole 312, and the like, the camera 302 is connected with the infrared long lens 303 through a screw thread, the infrared long lens 303 is fastened with the lens fixing ring 304 through a screw, the lens fixing ring 304 is fixed on an inner end face of the lens protective cover inner body 308 through a screw, the lens guide ring 305 plays a guiding role when the infrared long lens 303 is installed, and plays a fixing role after installation, the lens protection cover inner body 308 is connected with the lens protection cover outer body 310 in a welding and sealing mode, the lens protection cover inner body 308 is connected with the camera protection cover 307 in a sealing mode through threads, a camera protection cover handle 301 is welded on the camera protection cover 307, a camera wire outlet 306 is formed in the left end face of the camera protection cover 307 and comprises a power supply wire hole, a network video output wire hole and an analog video output wire hole, an inner body air inlet 309 is formed in the cylindrical surface of the lens protection cover inner body 308, an outer body air inlet 311 is formed in the cylindrical surface of the lens protection cover outer body 310, two paths of air inlet are formed, light inlet holes 312 are formed in the right ends of the lens protection cover inner body 308 and the lens protection cover outer body 310, and the light inlet holes 312 serve as air outlets of two paths of cooling air during working and are used for air cooling and soot blowing. The related optical elements in the infrared long lens 303 can bear higher temperature, the infrared long lens 303 is a straight lens, the diameter of an interface of the infrared long lens 303 is 25mm, the infrared long lens 303 is provided with energy attenuation, and other optical devices based on silicon materials are arranged in the infrared long lens 303; the adopted attenuation sheet is made of silicon and is arranged between the infrared long lens 303 and the infrared camera 302; the infrared camera 302 is provided with a digital video network interface, a power interface and an analog video interface, the non-refrigeration movement of the infrared camera 302 preferably has a working temperature of over 75 ℃, and the movement of the infrared camera 302 is preferably provided with image algorithms such as non-uniformity correction, self-adaptive dynamic range compression, intelligent image enhancement and the like; an industrial display can also be connected with the infrared camera 302 to receive video image data, so that the condition in the furnace can be observed in real time.
In another specific embodiment of the coking filter imaging and wall surface observation system, the main controller 203 may preferably be a PLC controller, and the PLC controller is remotely controlled by the cooperation of an upper computer and a power network bridge, and controls the switch of the electromagnetic valve to cooperate with the cylinder and the air pump to realize the actions of extending into the furnace and withdrawing from the furnace; the sensor is connected with a Siemens PLC controller, and when the temperature value in the protective cover and the air pressure value in the pipe are not in the set threshold range, the PLC controller can automatically control the electromagnetic valve to realize the action of withdrawing from the hearth, thereby achieving the purpose of protecting equipment.
To sum up, the coking filter imaging and wall surface observation system provided by the application can penetrate flame, observe the states of coking and dust deposition on the furnace wall more clearly, provide an operation basis for field workers, and ensure safe and economic operation of the boiler.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The coking filter imaging and wall surface observation system is characterized by comprising an infrared flame-transmitting imaging device for obtaining a coking image in a thermoelectric boiler and a protection device for enabling the infrared flame-transmitting imaging device to extend into or withdraw from a hearth, wherein the infrared flame-transmitting imaging device comprises an infrared core for imaging, an infrared high-temperature-resistant long lens for collecting radiation rays in the boiler and an attenuation sheet for attenuating the radiation energy of flame in the boiler.
2. The coking filter imaging and wall surface observation system according to claim 1, wherein the protection device comprises an upper computer, a power network bridge, a main controller, an electromagnetic valve, a cylinder, a pressure sensor, a temperature sensor, a protection cover, an air pump and an industrial display, and the main controller is used for controlling the opening and closing of the electromagnetic valve, receiving pressure and temperature signals, judging whether the pressure and the temperature exceed set thresholds or not, outputting pressure and temperature information and displaying the information on the industrial display; the power network bridge is used for connecting the upper computer and the main controller so as to remotely control the main controller through a human-computer interaction interface on the upper computer, the pressure sensor is used for collecting pressure information, the temperature sensor is used for collecting temperature information, the air pump is used as cooling air of the protective cover and an air source of the air cylinder, the electromagnetic valve is opened and closed to control the air cylinder to realize the stretching in and the withdrawing from of the infrared high-temperature resistant long lens, the remote control is realized through the cooperation of the upper computer and the power network bridge, the main controller is used for controlling the switch of the electromagnetic valve, is matched with the air cylinder and the air pump to realize the actions of stretching into a hearth and withdrawing from the hearth, the pressure sensor and the temperature sensor are connected with the main controller, and when the temperature and the air pressure in the protective cover are not within a set threshold range, the main controller automatically controls the electromagnetic valve to realize the action of exiting the hearth.
3. The coking filter imaging and wall observation system of claim 1 wherein the infrared transparent flame imaging device has a digital video network interface, a power interface and an analog video interface.
4. The coking filter imaging and wall observation system of claim 1 wherein the diameter of the interface of the infrared high temperature resistant telephoto lens is 25 mm.
5. The coking filter imaging and wall observation system of claim 2 wherein the industrial-grade display is connected to the infrared-transparent flame imaging device by a network cable.
6. The coking filter imaging and wall observation system of claim 2 wherein the master controller is a PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121504955.2U CN215217832U (en) | 2021-07-01 | 2021-07-01 | Coking filter imaging and wall observation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121504955.2U CN215217832U (en) | 2021-07-01 | 2021-07-01 | Coking filter imaging and wall observation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215217832U true CN215217832U (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121504955.2U Expired - Fee Related CN215217832U (en) | 2021-07-01 | 2021-07-01 | Coking filter imaging and wall observation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215217832U (en) |
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2021
- 2021-07-01 CN CN202121504955.2U patent/CN215217832U/en not_active Expired - Fee Related
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