Boiler with combustion monitoring and measuring device

Abstract

The utility model relates to the technical field of pulverized coal boiler combustion, and discloses a boiler with a combustion monitoring and measuring device, which comprises a boiler body, a combustor and the combustion monitoring and measuring device, the boiler body forms a hearth, the hearth comprises a plurality of inner wall surfaces, the combustor comprises a plurality of primary air pipes arranged along the height direction of the hearth, and the combustion monitoring and measuring device is arranged on the combustor. The combustion monitoring and measuring device comprises an air speed measuring device, a temperature measuring device and a video monitoring device, the air speed measuring device is arranged on the primary air pipe, the temperature measuring device is arranged on the inner wall surface, a monitoring inlet and outlet hole is formed in the inner wall surface, and the video monitoring device can enter and exit the hearth in a telescopic mode through the monitoring inlet and outlet hole. The monitoring and measuring device is used for measuring and monitoring the combustion condition and important parameters in the hearth, data support is provided for boiler combustion fine control, the combustion condition in the hearth and the coking condition of the water cooling wall are monitored in real time, the combustion efficiency of the boiler is improved, the coal consumption of the boiler is reduced, and the economic benefit of a unit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulverized coal boiler combustion, in particular to a boiler with a combustion monitoring and measuring device. Background Art

[0002] my country is a country with coal as its main primary energy source. Although with the continuous development of new energy technologies, new energy and renewable energy will continue to increase, and the proportion of coal consumption will gradually decrease. However, based on the characteristics of my country's energy structure of "more coal, less oil, and less gas", other energy supplies will be difficult to replace coal supply in the short term, and the status of coal as my country's main energy supply will remain unchanged for a long time. At present, the coal consumption of thermal power generation accounts for more than 60% of my country's total coal consumption. Power station coal-fired boilers can generally be divided into pulverized coal boilers and circulating fluidized bed boilers. The combustion methods generally used in pulverized coal boilers are direct current burner arrangement tangential combustion method, swirl burner front and rear wall arrangement hedging combustion method and W-type flame combustion method. Among them, the tangential coal-fired boiler is a widely used boiler type.

[0003] The combustion and heat exchange process of pulverized coal boilers is a complex process. Since most power plants use pulverized coal of varying quality in order to improve economic benefits, pulverized coal boilers have a series of problems during the combustion process, such as unstable combustion, pulverized coal brushing the wall, and the center of the combustion flame in the boiler shifting, forming a flue gas corridor, etc. At present, there is a lack of internal combustion monitoring and measuring points in the furnace of boilers in thermal power plants and cogeneration power plants in the power system. There is a lack of specific parameter measuring points and monitoring in the furnace flame combustion area during boiler operation, and a lack of reliable and intuitive data, resulting in a relatively extensive boiler combustion adjustment, which can only be adjusted by feeling, and cannot effectively and quickly solve various problems that arise during boiler operation. Utility Model Content

[0004] In order to overcome the problems existing in the related technology, the utility model provides a boiler with a combustion monitoring and measuring device, in which a wind speed measuring device is arranged on the primary air duct of the burner in the furnace, and a temperature measuring device and a video monitoring device are arranged on the inner wall surface of the combustion area in the furnace. The above-mentioned monitoring and measuring device is used to measure and monitor the combustion conditions and important parameters in the furnace, so as to provide data support for the refined control of boiler combustion.

[0005] The technical solution adopted by the utility model is: a boiler with a combustion monitoring and measuring device, comprising a boiler body; a burner arranged on the boiler body; and a combustion monitoring and measuring device; the boiler body is a hollow structure, and a furnace is formed inside, and the furnace includes a plurality of inner wall surfaces; the burner includes a plurality of primary air ducts, and the primary air ducts are arranged along the height direction of the burner;

[0006] The combustion monitoring and measuring device includes a wind speed measuring device, a temperature measuring device and a video monitoring device. The wind speed measuring device is arranged on the primary air duct, and the temperature measuring device is arranged on the inner wall surface. A monitoring inlet and outlet hole is opened on the inner wall surface, and the video monitoring device enters and exits the furnace through the monitoring inlet and outlet hole.

[0007] Furthermore, the burner includes a plurality of secondary air ducts and a mounting plate connected to the inner wall of the furnace, the primary air duct has a primary air nozzle, the secondary air duct has a secondary air nozzle, the primary air nozzle and the secondary air nozzle are alternately arranged on the mounting plate along the height direction of the furnace, and the furnace is divided into multiple layers of combustion areas along the height direction.

[0008] Furthermore, the furnace includes four inner wall surfaces, the burners are in four groups, and are respectively arranged at the four corners of the furnace, and the inner wall surfaces are connected to each other through the mounting plate.

[0009] Furthermore, the wind speed measuring device is a wind speed sensor, which includes a probe and a control component. The probe is arranged at the dense phase side of the coal powder at the primary air nozzle, and the control component is connected to the monitoring room through a wire.

[0010] Furthermore, the inner wall surface of the furnace is provided with a water-cooled wall, the temperature measuring device is arranged on the water-cooled wall, the water-cooled wall is provided with an opening at a position corresponding to the monitoring entrance and exit hole, and the video monitoring device can be telescopically moved in and out of the furnace through the monitoring entrance and exit hole and the opening.

[0011] Furthermore, the four inner wall surfaces of the furnace are all provided with water-cooled walls, the plurality of primary air nozzles and the plurality of secondary air nozzles divide the water-cooled wall into a primary air water-cooled wall layer and a secondary air water-cooled wall layer along the furnace height direction, and the temperature measuring device and the video monitoring device are both arranged in the primary air water-cooled wall layer.

[0012] Furthermore, there are two temperature measuring devices and two video monitoring devices set in the primary air water-cooled wall layer. The video monitoring devices are respectively set on two mutually opposing water-cooled walls in the primary air water-cooled wall layer and located in the middle of the water-cooled wall. The temperature measuring devices are respectively set in contact with the video monitoring devices.

[0013] Furthermore, the video monitoring device includes a housing, a monitoring camera with an inner sleeve and an outer sleeve, an automatic switch for monitoring the inlet and outlet holes, and a propulsion device;

[0014] The shell is installed on the other side of the monitoring entrance and exit hole relative to the furnace, and a accommodating cavity is formed inside the shell. The opening of the accommodating cavity is opposite to the monitoring entrance and exit hole. An automatic switch for the monitoring entrance and exit hole is arranged at the opening of the accommodating cavity. The monitoring camera is installed in the accommodating cavity, and the propulsion device is installed behind the monitoring camera to push the monitoring camera to extend and retract in and out of the furnace.

[0015] Furthermore, a vent hole is provided at one end of the outer sleeve away from the surveillance camera, and the vent hole is connected to a compressed cold air pipe, and the compressed cold air pipe is provided with a surveillance camera outer sleeve cooling wind solenoid valve.

[0016] Furthermore, the inner sleeve is fixedly connected to the camera, a gear rotating assembly is arranged at one end of the inner sleeve away from the camera, and a gear meshing with the gear rotating assembly is provided on the outer surface of the inner sleeve.

[0017] The utility model of a boiler with a combustion monitoring and measuring device has the following technical effects: by setting a wind speed measuring device on the primary air duct of the burner and setting a temperature measuring device and a video monitoring device on the inner wall surface of the furnace combustion area, the combustion conditions and important parameters in the furnace are measured and monitored, providing data support for the refined control of boiler combustion, and providing a basis for quickly solving various problems that arise during the operation of the boiler. The above-mentioned monitoring and measuring device can monitor the combustion in the furnace and the coking of the water-cooled wall in real time, take timely countermeasures, improve the combustion efficiency of the boiler, reduce the coal consumption of the boiler, and improve the economic benefits of the unit.

[0018] Other features and advantages disclosed in the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of a boiler primary air water-cooled wall layer with a combustion monitoring and measuring device according to an exemplary embodiment.

[0021] Figure 2 It is a schematic diagram of a top view structure of a boiler primary air water-cooled wall layer with a combustion monitoring and measuring device according to an exemplary embodiment.

[0022] Figure 3 It is a schematic diagram of the structure of the primary air water-cooled wall layer and the secondary air water-cooled wall layer of a boiler with a combustion monitoring and measuring device according to an exemplary embodiment.

[0023] Figure 4 The figure is a schematic diagram showing the internal structure of a video surveillance device according to an exemplary embodiment.

[0024] Figure numerals: 10, furnace; 11, inner wall; 12, water-cooled wall; 13, monitoring inlet and outlet hole; 20, burner; 21, primary air duct; 22, primary air nozzle; 23, mounting plate; 24, secondary air duct; 25, secondary air nozzle; 30, combustion monitoring and measuring device; 31, wind speed measuring device; 32, temperature measuring device; 33, video monitoring device; 331, shell; 3311, first slide rail; 3312, limit assembly; 33121, left limit member; 33122, right limit member; 332, monitoring camera; 333, outer sleeve; 3331, Air vent; 3332, compressed air pipe; 3333, monitoring camera outer sleeve cooling air solenoid valve; 3334, first slide rod; 334, inner sleeve; 335, monitoring inlet and outlet automatic switch; 3351, second cylinder propulsion device; 3352, second slide rail; 3353, door body; 3354, second air pipe; 3355, second solenoid valve; 3356, second push rod; 336, first cylinder propulsion device; 3361, first hanging rod; 3362, first air pipe; 3363, first solenoid valve; 3364, first push rod; 337, gear rotation assembly. DETAILED DESCRIPTION

[0025] The specific implementation methods disclosed in the present utility model are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation methods described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0026] like Figure 1 , Figure 2 The figure shows an exemplary embodiment of the disclosure of the utility model. The boiler of the utility model with a combustion monitoring and measuring device 30 comprises a boiler body; a burner 20 arranged on the boiler body; and a combustion monitoring and measuring device 30; the boiler body is a hollow structure, and a furnace 10 is formed inside, and the furnace 10 comprises a plurality of inner wall surfaces 11; the burner 20 comprises a plurality of primary air ducts 21, and the primary air ducts 21 are arranged along the height direction of the burner 20;

[0027] The combustion monitoring and measuring device 30 includes a wind speed measuring device 31, a temperature measuring device 32 and a video monitoring device 33. The wind speed measuring device 31 is arranged on the primary air duct 21, and the temperature measuring device 32 is arranged on the inner wall surface 11. A monitoring inlet and outlet hole 13 is opened on the inner wall surface 11, and the video monitoring device 33 enters and exits the furnace 10 through the monitoring inlet and outlet hole 13.

[0028] The utility model has a boiler with a combustion monitoring and measuring device 30. The wind speed measuring device 31 is arranged on the primary air duct 21 to measure the wind speed of the primary air duct 21. The temperature measuring device 32 and the video monitoring device 33 are arranged on the inner wall surface 11 of the combustion area of ​​the furnace 10 to measure the temperature of each inner wall surface 11 of the furnace 10 and monitor the combustion situation in the furnace 10. The combustion situation and important parameter data of the furnace 10 are collected in time by the above-mentioned monitoring and measuring device, providing data support for the refined control of boiler combustion. The boiler is provided with a monitoring entrance and exit hole 13 on the inner wall surface 11, and the camera of the video monitoring device 33 can enter the furnace 10 through the monitoring entrance and exit hole 13 to monitor the combustion situation in the furnace 10. At the same time, in order to avoid the camera of the video monitoring device 33 being easily damaged in a high temperature state for a long time, the camera of the video monitoring device 33 is normally in the monitoring entrance and exit hole 13 to avoid high temperature roasting, and regularly enters the furnace 10 to monitor the combustion of the furnace 10 and the coking situation of the water-cooled wall 12.

[0029] For example, Figure 1 , Figure 2 , Figure 3 As shown, the burner 20 includes a plurality of secondary air ducts 24 and a mounting plate 23 connected to the inner wall 11 of the furnace 10, the primary air duct 21 has a primary air nozzle 22, the secondary air duct 24 has a secondary air nozzle 25, the primary air nozzle 22 and the secondary air nozzle 25 are alternately arranged on the mounting plate 23 along the height direction of the furnace 10, and the furnace 10 is divided into multiple layers of combustion areas along the height direction.

[0030] Specifically, in the exemplary embodiment disclosed in the present utility model, the furnace 10 includes four inner wall surfaces 11, the burners 20 are four groups, respectively arranged at the four corners of the furnace 10, and the inner wall surfaces 11 are connected to each other through the mounting plate 23. The inner wall surface 11 of the furnace 10 is provided with a water-cooled wall 12, and the temperature measuring device 32 is arranged on the water-cooled wall 12. The water-cooled wall 12 is provided with an opening at a position corresponding to the monitoring inlet and outlet hole 13, and the video monitoring device 33 can be telescopically moved in and out of the furnace 10 through the monitoring inlet and outlet hole 13 and the opening. The wind speed measuring device 31 is a wind speed sensor, and the wind speed sensor includes a probe and a control component. The probe is arranged on the coal powder dense phase side of the primary air nozzle 22, and the control component is connected to the monitoring room through a wire.

[0031] The boiler with combustion monitoring and measuring device 30 of the utility model has four groups of burners 20, which are respectively arranged at the four corners of the furnace 10. The burner 20 includes a mounting plate 23, a primary air duct 21 and a secondary air duct 24. The four inner wall surfaces 11 of the furnace 10 are connected by the mounting plate 23. On the mounting plate 23, along the height direction of the furnace 10, the primary air nozzles 22 of the primary air duct 21 and the secondary air nozzles 25 of the secondary air duct 24 are alternately arranged facing the furnace 10. When the boiler is burning, the center lines of the primary air nozzles 22 of the four primary air ducts 21 arranged circumferentially along the furnace 10 and located at the same height are tangent to the first imaginary tangent circle formed together in the furnace 10, and the center lines of the secondary air nozzles 25 of the four secondary air ducts 24 arranged circumferentially along the furnace 10 and located at the same height are tangent to the second imaginary tangent circle formed together in the furnace 10; the primary air nozzles 22 and the secondary air nozzles 25 arranged circumferentially along the furnace 10 and located at the same height alternately divide the furnace 10 into primary air combustion layers and secondary air combustion layers along the height direction, and divide the furnace 10 into multiple combustion areas along the height direction.

[0032] At the primary air nozzle 22, the coal powder sprayed from the nozzle has a higher concentration on the side facing the nozzle, which is the coal powder dense phase side. The wind speed measuring device 31 of the boiler with the combustion monitoring and measuring device 30 of the utility model includes a wind speed sensor, and the probe of the wind speed sensor is arranged on the side facing the nozzle, which is used to measure the wind speed of the primary air nozzle 22. The control component of the wind speed sensor is connected to the monitoring room through a wire, and the primary wind speed data measured by the wind speed sensor probe is uploaded to the monitoring room.

[0033] The utility model has a boiler with a combustion monitoring and measuring device 30, and the inner wall surface 11 is distributed with water-cooled walls 12. The probe part of the temperature measuring device 32 is arranged on the water-cooled wall 12, and the control part is connected to the monitoring room through a wire, and the collected temperature data on each water-cooled wall 12 of the furnace 10 is uploaded to the monitoring room. An opening is provided on the water-cooled wall 12 at the position corresponding to the monitoring inlet and outlet hole 13, so that the camera of the video monitoring device 33 can enter and exit. The camera part of the video monitoring device 33 is designed with a retractable structure, and the camera of the video monitoring device 33 can be extended into the furnace 10, on the one hand, to monitor the combustion situation of the furnace 10, and on the other hand, to shoot the coking situation of the water-cooled wall 12. The camera also uploads the captured video image back to the monitoring room through an optical fiber. After the monitoring room collects the data uploaded by the above-mentioned monitoring and measuring device, it can more fully understand the combustion situation in the furnace 10, better deal with various problems that occur during the combustion process of the furnace 10, and take corresponding measures to control them.

[0034] Preferably, in the exemplary embodiment disclosed in the present utility model, the four inner wall surfaces 11 of the furnace 10 are all provided with water-cooled walls 12, and a plurality of primary air nozzles 22 and a plurality of secondary air nozzles 25 divide the water-cooled walls 12 into a primary air water-cooled wall layer and a secondary air water-cooled wall layer along the height direction of the furnace 10, and the temperature measuring device 32 and the video monitoring device 33 are both arranged in the primary air water-cooled wall layer. Optionally, there are two temperature measuring devices 32 and two video monitoring devices 33 arranged in each primary air water-cooled wall layer, and the video monitoring devices 33 are respectively arranged on two mutually opposing water-cooled walls 12 in the primary air water-cooled wall layer, and are located in the middle of the water-cooled wall 12, and the temperature measuring devices 32 are respectively arranged in contact with the video monitoring devices 33.

[0035] Water-cooled walls 12 are arranged on the four inner walls 11 of the furnace 10, which can better absorb the high temperature generated during the combustion process of the furnace 10, effectively reduce the temperature of the inner wall 11 of the furnace 10, and prevent the structure of the furnace 10 from being burned by high temperature. Several primary air nozzles 22 and secondary air nozzles 25 divide the furnace 10 into multiple combustion areas in the height direction, and also divide the water-cooled walls 12 on the four inner walls 11 alternately into primary air water-cooled wall layers and secondary air water-cooled wall layers in the height direction of the furnace 10. The temperature measuring device 32 and the video monitoring device 33 are both arranged on the primary air water-cooled wall layer, which is filled with coal powder and air, and the combustion is more intense, and the temperature change is more obvious, which can also better reflect the overall combustion situation of the furnace 10. Monitoring and measuring this layer can obtain more accurate combustion data of the furnace 10. One to four temperature measuring devices 32 and video monitoring devices 33 can be arranged on each layer of the primary air water-cooled wall layer. Optionally, two temperature measuring devices 32 and two video monitoring devices 33 are arranged on each primary air water-cooled wall layer, and the two video monitoring devices 33 are respectively arranged on two mutually opposing water-cooled walls 12 of the primary air water-cooled wall layer, and are located in the middle of the water-cooled wall 12. The two temperature measuring devices 32 are respectively arranged in contact with the two video monitoring devices 33. By arranging the two temperature measuring devices 32 and the video monitoring devices 33 on two mutually opposing water-cooled walls 12 of the same layer, the measured temperature data can relatively better reflect the deviation of the combustion center in the furnace 10, the viewing angle of the video monitoring device 33 will be relatively larger, the monitoring range will also be larger, and the corresponding equipment cost can also be saved.

[0036] For example, Figure 4As shown, in an exemplary embodiment disclosed by the present utility model, the utility model has a boiler with a combustion monitoring and measuring device 30, and its video monitoring device 33 includes a shell 331, a monitoring camera 332 provided with an inner sleeve 334 and an outer sleeve 333, a monitoring inlet and outlet hole automatic switch 335 and a propulsion device; the shell 331 is installed on the other side of the monitoring inlet and outlet hole 13 relative to the furnace 10, and a accommodating cavity is formed inside the shell 331, and the opening of the accommodating cavity is directly opposite to the monitoring inlet and outlet hole 13, and a monitoring inlet and outlet hole automatic switch 335 is arranged at the opening of the accommodating cavity. When the monitoring inlet and outlet hole automatic switch 335 is in a closed state, the opening of the accommodating cavity is separated from the monitoring inlet and outlet hole 13, the monitoring camera 332 is installed in the accommodating cavity, and the propulsion device is installed behind the monitoring camera 332 to push the monitoring camera 332 to extend and retract in and out of the furnace 10.

[0037] Specifically, an outer sleeve 333 sleeved on the monitoring camera 332 is provided with a vent hole 3331 at one end away from the monitoring camera 332, and the vent hole 3331 is communicated with the compressed cold air pipe 3332, and the compressed cold air pipe 3332 is provided with a monitoring camera outer sleeve cooling air solenoid valve 3333. The inner sleeve 334 is fixedly connected to the camera, and a gear rotating assembly 337 is arranged at one end of the inner sleeve 334 away from the camera, and a gear meshing with the gear rotating assembly 337 is arranged on the outer surface of the inner sleeve 334, and the gear rotating assembly 337 controls the shooting angle of the monitoring camera 332 by rotating the inner sleeve 334.

[0038] Figure 4 FIG. 3 is a schematic diagram showing the internal structure of a video monitoring device 33 according to an exemplary embodiment. Figure 4As shown, the video monitoring device 33 includes a shell 331, an outer sleeve 333, an inner sleeve 334, a monitoring camera 332, an automatic switch 335 for monitoring the inlet and outlet holes, and a propulsion device. An accommodating cavity is formed inside the shell 331, and the shell 331 is fixed to the other side of the inner wall surface 11 relative to the furnace 10, and the accommodating cavity opening of the shell 331 is directly opposite to the monitoring inlet and outlet holes 13 on the inner wall surface 11. A first slide rail 3311 is arranged in the middle of the upper surface of the shell 331, and a limiting assembly 3312 is arranged on the first slide rail 3311. The limiting assembly 3312 is divided into a left limiting member 33121 and a right limiting member 33122. Two first slide bars 3334 are arranged on the outer surface of the outer sleeve 333, and one end of the two first slide bars 3334 is inserted into the first slide rail 3311 to hang the outer sleeve 333 on the shell 331. The two first slide bars 3334 can slide in the first slide rail 3311 to drive the outer sleeve 333 in and out of the accommodating chamber opening and the monitoring inlet and outlet hole 13. The first slide bar 3334 arranged on the end of the outer sleeve 333 away from the accommodating chamber opening is inserted into the slide rail between the left stopper 33121 and the right stopper 33122 to limit the sliding distance of the outer sleeve 333, so as to prevent the outer sleeve 333 from extending into the furnace 10 too far, and to prevent the outer sleeve 333 and the monitoring camera 332 from being damaged by the high temperature of the furnace 10. A vent hole 3331 is arranged at the end of the outer sleeve 333 away from the accommodating chamber opening, and the vent hole 3331 is communicated with the compressed cold air pipe 3332, and the compressed cold air pipe 3332 is provided with a monitoring camera outer sleeve cooling air solenoid valve 3333. When one end of the outer sleeve 333 close to the monitoring inlet and outlet hole 13 extends into the furnace 10, the monitoring camera outer sleeve cooling air solenoid valve 3333 is opened to pass compressed cold air into the outer sleeve 333 to protect the inner sleeve 334 and the monitoring camera 332 inside the outer sleeve 333, and prevent the inner sleeve 334, the outer sleeve 333 and the monitoring camera 332 from being damaged by high temperature.

[0039] The inner sleeve 334 is arranged inside the outer sleeve 333 and is rotatably connected with the outer sleeve 333. A monitoring camera 332 is fixed to one end of the inner sleeve 334 near the monitoring entrance and exit hole 13, and a gear is arranged on the outer surface of the other end of the tail, and a gear rotating assembly 337 is fixed at the corresponding position, and the gear on the gear rotating assembly 337 is meshed with the gear on the inner sleeve 334. By rotating the gear rotating assembly 337, the inner sleeve 334 can be rotated relative to the outer sleeve 333, and the monitoring camera 332 is driven to rotate to control the shooting angle of the monitoring camera 332. A propulsion device is arranged at the tail of the outer sleeve 333, and the propulsion device is a first cylinder propulsion device 336, and the body of the first cylinder propulsion device 336 is inserted into the first slide rail 3311 through one end of the first hanging rod 3361 to be suspended on the housing 331. The first push rod 3364 of the first cylinder propulsion device 336 is fixedly connected to the first slide rod 3334 arranged on the end of the outer sleeve 333 away from the opening of the accommodating cavity. The first cylinder propulsion device 336 is connected to the first air pipe 3362, and the first air pipe 3362 is provided with a first electromagnetic valve 3363. When the first electromagnetic valve 3363 is opened, high-pressure gas is introduced into the first cylinder propulsion device 336, and the first push rod 3364 of the first cylinder propulsion device 336 is pushed, driving the first slide bar 3334 fixedly connected thereto to slide on the slide rail, so as to drive the outer sleeve 333 to extend into the furnace 10, and further drive the inner sleeve 334 and the monitoring camera 332 to extend into the furnace 10. When the first electromagnetic valve 3363 is closed, the first push rod 3364 of the first cylinder propulsion device 336 is retracted, driving the inner sleeve 334, the outer sleeve 333 and the monitoring camera 332 to retract into the housing 331.

[0040] An automatic switch 335 for monitoring the inlet and outlet holes is provided at the opening of the accommodating chamber, and the automatic switch 335 for monitoring the inlet and outlet holes includes a second cylinder propulsion device 3351, a door body 3353 connected to a second push rod 3356 of the second cylinder propulsion device 3351, and a second slide rail 3352 provided at the opening of the accommodating chamber for sliding the door body 3353. The second cylinder propulsion device 3351 is connected to a second air pipe 3354, and a second electromagnetic valve 3355 is provided on the second air pipe 3354. When the first electromagnetic valve 3363 is opened, the second electromagnetic valve 3355 is also closed, and the second push rod 3356 of the second cylinder propulsion device 3351 contracts to drive the door body 3353 to slide, so as to open the monitoring inlet and outlet holes 13, so that the outer sleeve 333 can extend into the furnace 10. When the first solenoid valve 3363 is closed and the second solenoid valve 3355 is opened at the same time, the first push rod 3364 of the first cylinder propulsion device 336 contracts to drive the inner sleeve 334, the outer sleeve 333 and the monitoring camera 332 to retract into the shell 331. At this time, the second push rod 3356 of the second cylinder propulsion device 3351 pushes the door body 3353 to close the opening of the accommodating cavity and the monitoring inlet and outlet hole 13.

[0041] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0042] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0043] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A boiler with a combustion monitoring and measuring device, characterized in that: include Boiler body; A burner disposed on the boiler body; and Combustion monitoring measuring devices; The boiler body is a hollow structure with a furnace formed inside, and the furnace includes a plurality of inner wall surfaces; The burner comprises a plurality of primary air ducts, and the primary air ducts are arranged along the height direction of the burner; The combustion monitoring and measuring device includes a wind speed measuring device, a temperature measuring device and a video monitoring device. The wind speed measuring device is arranged on the primary air duct, and the temperature measuring device is arranged on the inner wall surface. A monitoring inlet and outlet hole is opened on the inner wall surface, and the video monitoring device enters and exits the furnace through the monitoring inlet and outlet hole.

2. The boiler with a combustion monitoring and measuring device according to claim 1, characterized in that: The burner includes a plurality of secondary air ducts and a mounting plate connected to the inner wall of the furnace, the primary air duct has a primary air nozzle, the secondary air duct has a secondary air nozzle, the primary air nozzle and the secondary air nozzle are alternately arranged on the mounting plate along the height direction of the furnace, and the furnace is divided into multiple layers of combustion areas along the height direction.

3. The boiler with a combustion monitoring and measuring device according to claim 2 is characterized in that: The furnace comprises four inner wall surfaces, the burners are in four groups and are respectively arranged at the four corners of the furnace, and the inner wall surfaces are connected to each other through the mounting plate.

4. The boiler with a combustion monitoring and measuring device according to claim 1, characterized in that: The wind speed measuring device is a wind speed sensor, which includes a probe and a control component. The probe is arranged at the dense phase side of the coal powder at the primary air nozzle, and the control component is connected to the monitoring room through a wire.

5. The boiler with a combustion monitoring and measuring device according to claim 2, characterized in that: The inner wall surface of the furnace is provided with a water-cooled wall, the temperature measuring device is arranged on the water-cooled wall, the water-cooled wall is provided with an opening at a position corresponding to the monitoring inlet and outlet hole, and the video monitoring device can be telescopically moved in and out of the furnace through the monitoring inlet and outlet hole and the opening.

6. The boiler with a combustion monitoring and measuring device according to claim 3, characterized in that: The four inner wall surfaces of the furnace are all provided with water-cooled walls. The primary air nozzles and the secondary air nozzles divide the water-cooled walls into a primary air water-cooled wall layer and a secondary air water-cooled wall layer along the furnace height direction. The temperature measuring device and the video monitoring device are both arranged in the primary air water-cooled wall layer.

7. The boiler with the combustion monitoring and measuring device according to claim 6 is characterized in that: There are two temperature measuring devices and two video monitoring devices arranged in the primary air water-cooled wall layer. The video monitoring devices are respectively arranged on two mutually opposing water-cooled walls in the primary air water-cooled wall layer and located in the middle of the water-cooled wall. The temperature measuring devices are respectively arranged in contact with the video monitoring devices.

8. The boiler with a combustion monitoring and measuring device according to claim 1, characterized in that: The video monitoring device comprises a housing, a monitoring camera with an inner sleeve and an outer sleeve, an automatic switch for monitoring an inlet and outlet hole, and a propulsion device; The shell is installed on the other side of the monitoring entrance and exit hole relative to the furnace, and a accommodating cavity is formed inside the shell. The opening of the accommodating cavity is opposite to the monitoring entrance and exit hole. An automatic switch for the monitoring entrance and exit hole is arranged at the opening of the accommodating cavity. The monitoring camera is installed in the accommodating cavity, and the propulsion device is installed behind the monitoring camera to push the monitoring camera to extend and retract in and out of the furnace.

9. The boiler with the combustion monitoring and measuring device according to claim 8, characterized in that: An air vent is provided at one end of the outer sleeve away from the surveillance camera, and the air vent is communicated with a compressed cold air pipe, and the compressed cold air pipe is provided with a surveillance camera outer sleeve cooling wind solenoid valve.

10. The boiler with the combustion monitoring and measuring device according to claim 8, characterized in that: The inner sleeve is fixedly connected to the camera head, a gear rotating assembly is arranged at one end of the inner sleeve away from the camera head, and a gear meshing with the gear rotating assembly is arranged on the outer surface of the inner sleeve.

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