CN116989348A - Hot secondary air channel communication device - Google Patents
Hot secondary air channel communication device Download PDFInfo
- Publication number
- CN116989348A CN116989348A CN202310797301.0A CN202310797301A CN116989348A CN 116989348 A CN116989348 A CN 116989348A CN 202310797301 A CN202310797301 A CN 202310797301A CN 116989348 A CN116989348 A CN 116989348A
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- Prior art keywords
- pipe
- vibrating
- hot
- elbow
- communication
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004891 communication Methods 0.000 title claims abstract description 93
- 238000005452 bending Methods 0.000 claims abstract description 41
- 239000004071 soot Substances 0.000 claims abstract description 32
- 239000000428 dust Substances 0.000 claims description 17
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 7
- 238000009825 accumulation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 230000008021 deposition Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010977 unit operation Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
Abstract
The application provides a hot secondary air channel communication device, which relates to the technical field of boiler operation safety of coal-fired units and comprises the following components: the connecting bent pipe is provided with a bending part, and two air inlets are symmetrically arranged on the connecting bent pipe at the bending part; the temperature detectors are symmetrically arranged in the communicating elbow at the bending positions and are used for detecting temperature values in the communicating elbow; a pair of soot blowers, each air inlet is provided with one soot blower, and the soot blowers blow air into the communicating bent pipe through the corresponding air inlet so as to blow accumulated ash in the communicating bent pipe; the control machine is connected with the temperature detector and the soot blower in a signal way, and controls the soot blower to be started or closed according to the temperature value in the communicated bent pipe. This hot overgrate air passageway intercommunication device can clear up the deposition in the intercommunication return bend at any time as required, ensures coal-fired unit's operation safety, has solved among the prior art because of the deposition clearance in the intercommunication wind channel between the hot overgrate air passageway not in time brings the problem of production risk for coal-fired unit operation.
Description
Technical Field
The application relates to the technical field of boiler operation safety of coal-fired units, in particular to a hot secondary air channel communication device.
Background
At present, a communication air duct is arranged between outlet hot secondary air channels of air pre-heaters on two sides of a coal-fired unit power plant boiler, the communication air duct is square in shape, and the output of blowers on two sides of the coal-fired unit cannot be deviation-free in actual operation, so that airflow flows in the communication air duct under the influence of system resistance on two sides and the output deviation of the blowers, the flow speed is low, a large amount of deposited ash is deposited in the communication air duct due to long-term operation, and great test is performed on the safety of the air duct. In the prior art, when the periodical overhaul of the coal-fired unit is needed, accumulated ash generated in the communication air duct is cleaned manually, in practical application, the deposition speed of the accumulated ash in the communication air duct is accelerated due to poor coal quality, when the overhaul period of the coal-fired unit is not reached, the accumulated ash condition in the communication air duct is quite serious, frequent shutdown is needed to clean the accumulated ash in the communication channel for the operation safety of the coal-fired boiler, and thus the production efficiency of the coal-fired unit is greatly affected. Accordingly, there is a need for an apparatus that solves at least one of the above problems.
Disclosure of Invention
The embodiment of the application aims to provide a hot secondary air channel communication device which is used for solving the problem that the accumulated ash deposited in a communication air channel between hot secondary air channels is not timely cleaned and easily causes production risk to the operation of a coal-fired unit in the prior art.
In order to achieve the above object, the present application provides a hot secondary air passage communication device including:
the connecting bent pipe is provided with a bending part, two air inlets are symmetrically formed in the connecting bent pipe at the bending part, two ends of the connecting bent pipe are respectively communicated with two hot secondary air channels, and an included angle between the connecting bent pipe and each hot secondary air channel is a first given included angle;
the pair of temperature detectors are symmetrically arranged in the communicating elbow at the bending position and are used for detecting the temperature value in the communicating elbow;
a pair of soot blowers, each air inlet is provided with one soot blower, and each soot blower blows air into the communication bent pipe through the corresponding air inlet so as to blow accumulated ash in the communication bent pipe;
the control machine is connected with the temperature detector and the soot blower in a signal way, and is used for controlling the soot blower to be started or closed according to the temperature value in the communicated bent pipe.
Specifically, the hot overgrate air passageway intercommunication device still includes:
and the vibrating mechanisms are symmetrically arranged on the outer pipe wall of the communication elbow at the bending positions and are used for vibrating the pipe wall of the communication elbow.
Specifically, each rapping mechanism comprises: a rapping rod, a rapping driver and a mounting collar;
the mounting hoop is sleeved on the communication elbow;
the vibrating rod is provided with a vibrating end and a driving end, the rod body of the vibrating rod is pivoted on the mounting hoop, and the vibrating end is driven to vibrate the pipe wall of the communicating elbow by the rotation of the vibrating rod at the pivoting position;
the vibration driver is arranged on the mounting hoop and is movably connected with the driving end of the vibration rod, and the vibration driver is used for driving the vibration rod to rotate.
Specifically, each rapping mechanism further comprises: the vibrating head is detachably arranged at the vibrating end, and the vibrating rod is used for vibrating the pipe wall of the communication elbow through the vibrating head.
Specifically, the rapping head is made of rubber material.
Specifically, the hot overgrate air passageway intercommunication device still includes: an ash discharge assembly;
the bent part of the communication bent pipe is provided with an ash discharge port, and the ash discharge assembly is arranged at the ash discharge port and used for discharging accumulated ash deposited at the bent part.
Specifically, the ash discharge assembly includes: an ash discharge pipe, a control valve and a delivery pump;
the ash discharge pipe is communicated with the ash discharge port at the bending part;
the control valve is arranged on the ash discharge pipe and used for controlling the on-off of the ash discharge pipe;
the conveying pump is arranged at the ash discharge port of the bending part and is used for discharging accumulated ash deposited at the bending part through the ash discharge pipe.
Specifically, the hot overgrate air passageway intercommunication device still includes: an observation window;
and an observation hole is formed at the bending part close to the communication elbow, the observation window is covered at the orifice of the observation hole, and the dust accumulation condition in the communication elbow is observed through the observation window.
Specifically, the observation window is provided with annular sealing boss towards one side of the observation hole, the orifice of the observation hole is provided with annular sealing grooves matched with the annular sealing boss, and the annular sealing boss can be embedded into the annular sealing grooves under the condition that the observation window is covered on the orifice of the observation hole.
Specifically, the soot blower is an acoustic wave soot blower or a compressed air soot blower.
According to the hot secondary air channel communication device provided by the application, the communication bent pipe is arranged between the two hot secondary air channels, a first given included angle is formed between the communication bent pipe and each hot secondary air channel, and gas flowing between the two hot secondary air channels through the communication bent pipe can be communicated.
Additional features and advantages of embodiments of the application will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain, without limitation, the embodiments of the application. In the drawings:
FIG. 1 is a schematic diagram of an installation structure of a hot secondary air channel communication device according to an embodiment of the present application;
FIG. 2 is a schematic structural view of a hot secondary air channel communication device according to an embodiment of the present application;
fig. 3 is a schematic view of an installation structure of a hot secondary air channel communication device according to another embodiment of the present application.
Description of the reference numerals
1-a communicating elbow; 2-a hot secondary air channel; 3-a temperature detector; 4-soot blower; 5-a rapping mechanism; 6-ash discharging assembly; 7-an observation window; 51-a rapping bar; 52-a rapping driver; 53-mounting collar; 54-vibrating the head; 61-ash discharge pipe; 62-a control valve; 63-a transfer pump; a-a first given angle.
Detailed Description
The following describes the detailed implementation of the embodiments of the present application with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the application, are not intended to limit the application.
Fig. 1 is a schematic view of an installation structure of a hot secondary air passage communication device, and fig. 2 is a schematic view of a structure of a hot secondary air passage communication device. As shown in fig. 1 to 2, the present application provides a hot secondary air passage communication device including:
the connecting bent pipe 1 is provided with a bending part, two air inlets are symmetrically formed in the connecting bent pipe 1 at the bending part, two ends of the connecting bent pipe 1 are respectively communicated with two hot overgrate air channels 2, and an included angle between the connecting bent pipe 1 and each hot overgrate air channel 2 is a first given included angle A;
the pair of temperature detectors 3 are symmetrically arranged in the communicating elbow 1 at the bending position and are used for detecting the temperature value in the communicating elbow 1;
a pair of soot blowers 4, each air inlet is provided with one soot blower 4, and each soot blower 4 blows air into the communication elbow 1 through the corresponding air inlet so as to blow accumulated ash in the communication elbow 1;
the control machine is in signal connection with the temperature detector 3 and the soot blower 4 and is used for controlling the soot blower 4 to be started or closed according to the temperature value in the communication bent pipe 1.
The application provides a hot secondary air channel communication device, a communication elbow pipe 1 is arranged between two hot secondary air channels 2, two ends of the communication elbow pipe 1 are respectively communicated with the hot secondary air channels 2, as shown in figure 1, the cross section of the communication elbow pipe 1 is circular, namely, the communication elbow pipe 1 is formed by bending a circular column pipe, the bending position of the communication elbow pipe 1 is positioned at the middle position of the communication elbow pipe 1, the lengths of the pipes at two sides of the bending position of the communication elbow pipe 1 are equal, temperature detectors 3 are respectively arranged at two sides of the bending position of the communication elbow pipe 1 to detect the temperature value in the communication elbow pipe 1, the temperature detectors 3 are armoured thermocouples, when a coal-fired unit normally operates, the communication elbow pipe 1 has gas flow, the temperature value in the communication elbow pipe 1 detected by the temperature detectors 3 is between 300 ℃ and 320 ℃ under the condition that the ash is more in the communication elbow pipe 1, the gas flowing through the communicating elbow pipe 1 is reduced, so that the temperature value in the communicating elbow pipe 1 detected by the temperature detector 3 is gradually reduced, when the temperature value in the communicating elbow pipe 1 is detected to be not more than 200 ℃, the dust accumulation condition in the communicating elbow pipe 1 is quite serious, the communicating elbow pipe 1 needs to be cleaned in time, two air inlets are arranged on the communicating elbow pipe 1 and symmetrically arranged at the bending position, a control machine controls the soot blower 4 to start according to the temperature value in the communicating elbow pipe 1 detected by the temperature detector 3 during cleaning, the soot blower 4 blows air into the communicating elbow pipe 1 through the air inlets arranged on the communicating elbow pipe 1 to blow deposited dust, so that the dust accumulation flows away along with the gas flowing through the communicating elbow pipe 1 through the hot secondary air channel 2, the work of cleaning the dust accumulation is not required to be performed when a maintenance unit is not required, the dust collection cleaning work can be completed at any time under the condition that the dust collection in the communicating bent pipe 1 is serious, the problem that the dust collection deposited in the communicating air channels between the hot secondary air channels in the prior art is not timely cleaned to bring production risks to the operation of the coal-fired unit easily is solved, meanwhile, the dust collection is cleaned without stopping, the working efficiency of the coal-fired unit is improved, and unnecessary production loss is reduced.
In one embodiment, as shown in fig. 1, a first given included angle between the communicating elbow pipe 1 and the hot overgrate air channel 2 is a, the first given included angle a is between 20 ° and 60 °, the bending position is arranged at the middle position of the communicating elbow pipe 1, the bending angle of the bending position of the communicating elbow pipe 1 is between 40 ° and 120 °, the wall thickness of the communicating elbow pipe 1 is 5mm, a temperature detector 3 and a soot blower 4 are respectively arranged at two sides of the bending position of the communicating elbow pipe 1, the temperature detector 3 detects the temperature value in the communicating elbow pipe 1, the controller controls the soot blower to blow into the communicating elbow pipe 1 when the obtained temperature value in the communicating elbow pipe 1 is lower than the set temperature value, the included angle between the air outlet direction of the air outlet of the soot blower 4 and the extending direction of the pipe body at the corresponding side of the communicating elbow pipe 1 is 45 °, the blown air is sprayed onto the inner wall of the communicating elbow pipe 1, the deposited soot in the communicating elbow pipe 1 is favorably blown, the floating soot is discharged along with the gas through the hot overgrate air channel 2, the acoustic wave blower 4 can select the soot blower or the compressed air blower, and the temperature value in general be the communicating elbow pipe 1 is accurately set in the plurality of thermocouples.
In order to better remove the deposited ash in the communicating elbow pipe 1, in particular, the hot secondary air channel communicating device further comprises:
the pair of vibrating mechanisms 5 are symmetrically arranged on the outer pipe wall of the communication elbow pipe 1 at the bending positions and are used for vibrating the pipe wall of the communication elbow pipe 1. Long-term deposition of deposited dust in the communication elbow pipe 1, part of deposited dust adheres to the inside of the communication elbow pipe 1 due to liquid particles carried in gas flowing through the inside of the communication elbow pipe 1, so that the deposited dust adhered to the communication elbow pipe 1 is difficult to fall off due to blowing, a rapping mechanism 5 is arranged on the outer side wall of the communication elbow pipe 1, and the adhered deposited dust falls off by rapping the pipe wall of the communication elbow pipe 1 through the rapping mechanism 5.
In one embodiment, as shown in fig. 2, in particular, each rapping mechanism 5 comprises: a rapping rod 51, a rapping driver 52 and a mounting collar 53;
the mounting hoop 53 is sleeved on the communication elbow pipe 1;
the vibrating rod 51 is provided with a vibrating end and a driving end, the rod body of the vibrating rod 51 is pivoted on the mounting hoop 53, and the vibrating end is driven to vibrate the pipe wall of the communication elbow pipe 1 by the rotating of the vibrating rod 51 at the pivoting position;
the rapping driver 52 is arranged on the mounting hoop 53 and is movably connected with the driving end of the rapping rod 51, and the rapping driver 52 is used for driving the rapping rod 51 to rotate.
The installation hoop 53 is the clamp, and the clamp is on the lateral wall of intercommunication return bend 1, and the shaft of rapping rod 51 articulates and sets up on installation hoop 53, and the rapping end and the drive end of rapping rod 51 are located the both sides of articulated department respectively, drive the installation end motion of rapping rod 51 through rapping driver 52 for rapping rod 51 rotates around articulated department in order to drive the rapping end of rapping rod 51 and beat the outer wall of intercommunication return bend 1, so that the deposition that adheres to in intercommunication return bend 1 drops.
In order to avoid damaging the wall of the communication elbow 1 during the rapping of the communication elbow 1, each rapping mechanism 5 further comprises: the vibrating head 54 is detachably mounted at the vibrating end, and the vibrating rod 51 is used for vibrating the pipe wall of the communication elbow pipe 1 through the vibrating head 54. The vibrating head 54 is made of rubber material, and the vibrating head 54 can also be made of wood or hard plastic.
Under the condition that the hot secondary air channel 2 connected at the air outlet of the air preheating heater of the coal-fired unit has a sufficient length, as shown in fig. 1, the bending position of the communicating elbow pipe 1 is lower than the connecting position of the communicating elbow pipe 1 and the hot secondary air channel 2, so that the bending position of the communicating elbow pipe 1 can deposit deposited dust, and in order to discharge the deposited dust deposited at the bending position, the hot secondary air channel communicating device further comprises: an ash discharge assembly 6; the bent part of the communication bent pipe 1 is provided with an ash discharge port, and the ash discharge assembly 6 is arranged at the ash discharge port and is used for discharging accumulated ash deposited at the bent part.
The ash discharge assembly 6 includes: an ash discharge pipe 61, a control valve 62 and a transfer pump 63;
the ash discharge pipe 61 is communicated with the communication elbow pipe 1 at the bending position of the communication elbow pipe 1;
the control valve 62 is arranged on the ash discharge pipe 61 and is used for controlling the on-off of the ash discharge pipe 61;
the transfer pump 63 is disposed at a bent portion of the communication elbow 1 for discharging the accumulated ash deposited at the bent portion through the ash discharge pipe 61.
The conveying pump 63 is arranged at the ash discharge port, and discharges accumulated ash at the bending position through the ash discharge port and the ash discharge pipe 61, so that the blocking of the communicating bent pipe 1 caused by the accumulated ash deposition at the bending position is avoided.
In another embodiment, as shown in fig. 3, the length of the hot overgrate air channel 2 connected to the air outlet of the air preheating heater of the coal-fired unit is insufficient, and as shown in fig. 3, the bent position of the communicating elbow 1 is higher than the connection position of the communicating elbow 1 and the hot overgrate air channel 2, so that the blown accumulated ash or the knocked and fallen accumulated ash can enter the hot overgrate air channel 2 and be discharged through the hot overgrate air channel 2.
In order to intuitively observe the deposition condition of the deposited ash in the communicating elbow pipe 1, specifically, the hot secondary air channel communicating device further comprises: an observation window 7;
an observation hole is formed in the bending position close to the communication elbow 1, the observation window 7 covers the orifice of the observation hole, and the dust accumulation condition in the communication elbow 1 is observed through the observation window 7.
In order to avoid the deposition of blowing up in the communication return bend 1 to leak from the gap between observation window 7 and the observation hole, be provided with annular seal boss on the one side of observation window 7 orientation the observation hole, the drill way of observation hole be provided with annular seal boss assorted annular seal recess, observation window 7 closing cap is in under the condition of the drill way of observation hole, annular seal boss can be embedded into in the annular seal recess.
According to the hot secondary air channel communication device provided by the application, the communication bent pipe is arranged between the two hot secondary air channels, a first given included angle is formed between the communication bent pipe and each hot secondary air channel, and gas flowing between the two hot secondary air channels through the communication bent pipe can be communicated.
The foregoing details of the optional implementation of the embodiment of the present application have been described in detail with reference to the accompanying drawings, but the embodiment of the present application is not limited to the specific details of the foregoing implementation, and various simple modifications may be made to the technical solution of the embodiment of the present application within the scope of the technical concept of the embodiment of the present application, and these simple modifications all fall within the protection scope of the embodiment of the present application.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, various possible combinations of embodiments of the present application are not described in detail.
Those skilled in the art will appreciate that all or part of the steps in implementing the methods of the embodiments described above may be implemented by a program stored in a storage medium, including instructions for causing a single-chip microcomputer, chip or processor (processor) to perform all or part of the steps of the methods of the embodiments described herein. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, randomAccess Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In addition, any combination of various embodiments of the present application may be performed, so long as the concept of the embodiments of the present application is not violated, and the disclosure of the embodiments of the present application should also be considered.
Claims (10)
1. A hot overgrate air passageway intercommunication device, characterized in that, hot overgrate air passageway intercommunication device includes:
the connecting bent pipe (1) is provided with a bending part, two air inlets are symmetrically formed in the connecting bent pipe (1) at the bending part, two ends of the connecting bent pipe (1) are respectively communicated with two hot overgrate air channels (2), and an included angle between the connecting bent pipe (1) and each hot overgrate air channel (2) is a first given included angle (A);
the pair of temperature detectors (3) are symmetrically arranged in the communicating elbow (1) at the bending position and are used for detecting the temperature value in the communicating elbow (1);
a pair of soot blowers (4), each air inlet is provided with one soot blower (4), and each soot blower (4) blows air into the communication elbow (1) through the corresponding air inlet so as to blow accumulated ash in the communication elbow (1);
the control machine is in signal connection with the temperature detector (3) and the soot blower (4), and is used for controlling the soot blower (4) to be started or closed according to the temperature value in the communication elbow pipe (1).
2. The hot overair channel communication device of claim 1, further comprising:
the pair of vibrating mechanisms (5) are symmetrically arranged on the outer pipe wall of the communication elbow pipe (1) at the bending position and are used for vibrating the pipe wall of the communication elbow pipe (1).
3. A hot overair channel communication device according to claim 2, wherein each rapping mechanism (5) comprises: a rapping rod (51), a rapping driver (52) and a mounting collar (53);
the mounting hoop (53) is sleeved on the communication elbow (1);
the vibrating rod (51) is provided with a vibrating end and a driving end, the rod body of the vibrating rod (51) is pivoted on the mounting hoop (53), and the vibrating end is driven to vibrate the pipe wall of the communication elbow pipe (1) by the rotation of the vibrating rod (51) at the pivoting position; the vibrating driver (52) is arranged on the mounting hoop (53) and is movably connected with the driving end of the vibrating rod (51), and the vibrating driver (52) is used for driving the vibrating rod (51) to rotate.
4. A hot overair channel communication device according to claim 3, wherein each rapping mechanism (5) further comprises: the vibrating head (54) is detachably arranged at the vibrating end, and the vibrating rod (51) is used for vibrating the pipe wall of the communication elbow pipe (1) through the vibrating head (54).
5. The hot overgrate air channel communication device as claimed in claim 4, wherein the rapping head (54) is made of rubber material.
6. The hot overair channel communication device of claim 1, further comprising: an ash discharge assembly (6);
the device is characterized in that an ash discharge port is formed in the bending position of the communication bent pipe (1), and the ash discharge assembly (6) is arranged at the ash discharge port and used for discharging accumulated ash deposited at the bending position.
7. The hot overgrate air channel communication device as claimed in claim 4, wherein the ash discharge assembly (6) comprises: an ash discharge pipe (61), a control valve (62) and a delivery pump (63);
the ash discharge pipe (61) is communicated with the ash discharge port at the bending part;
the control valve (62) is arranged on the ash discharge pipe (61) and is used for controlling the on-off of the ash discharge pipe (61);
the conveying pump (63) is arranged at an ash discharge port of the bending part and is used for discharging accumulated ash deposited at the bending part through the ash discharge pipe (61).
8. The hot overair channel communication device of claim 1, further comprising: an observation window (7);
the bending part close to the communication elbow pipe (1) is provided with an observation hole, the observation window (7) is covered at the orifice of the observation hole, and the dust accumulation condition in the communication elbow pipe (1) is observed through the observation window (7).
9. The hot overgrate air passageway intercommunication device according to claim 9, wherein an annular sealing boss is arranged on one face of the observation window (7) facing the observation hole, an annular sealing groove matched with the annular sealing boss is arranged on an orifice of the observation hole, and the annular sealing boss can be embedded into the annular sealing groove under the condition that the observation window (7) is covered on the orifice of the observation hole.
10. The hot overgrate air channel communication device of claim 1, wherein the sootblower (4) is an acoustic sootblower or a compressed air sootblower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310797301.0A CN116989348A (en) | 2023-06-30 | 2023-06-30 | Hot secondary air channel communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310797301.0A CN116989348A (en) | 2023-06-30 | 2023-06-30 | Hot secondary air channel communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116989348A true CN116989348A (en) | 2023-11-03 |
Family
ID=88531074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310797301.0A Pending CN116989348A (en) | 2023-06-30 | 2023-06-30 | Hot secondary air channel communication device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116989348A (en) |
-
2023
- 2023-06-30 CN CN202310797301.0A patent/CN116989348A/en active Pending
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