Flue carbon emission on-line monitoring anti-purging module

Abstract

The utility model discloses a flue carbon emission on -line monitoring back purging module, the utility model relates to flue carbon emission technical field, the utility model discloses, including: the chimney, controller, detector, the outer wall of chimney is fixedly connected with controller, the controller is electrically connected with detector, the inner wall of chimney is fixedly connected with back purging device, through setting up this module through back purging device and the collaborative design of detector, sensor, utilize the compressed gas of air pump output to form annular purging airflow through the through -hole of blow -off pipe, outer pipe, can directly carry out pertinence cleaning to the probe located in the through -hole inside, effectively remove the soot, dust and condensate impurity adhered to the probe surface, the accurate control of controller to electric valve, can avoid the impurity shielding probe or interfering sensor signal in time, ensure that sensor collection's flue carbon emission data truly reflects actual emission situation, and the purpose of data error rate is reduced significantly.

Description

Technical Field

[0001] This utility model relates to the field of flue gas carbon emission technology, specifically a flue gas carbon emission online monitoring backflushing module. Background Technology

[0002] In the field of online monitoring of carbon emissions from flue gas ducts, continuous emission monitoring systems play a core role. By monitoring the flue gas flow rate and the concentration of greenhouse gases such as CO2 in the chimney in real time, they obtain highly timely data, which facilitates quality control, online verification, and source traceability management.

[0003] Traditional monitoring equipment is susceptible to the complex operating conditions inside flues, such as high temperature, high humidity, high dust, and corrosive gas environments. Under such conditions, sampling probes are easily clogged by soot, dust, and condensed impurities, interfering with sensor signals and causing deviations in monitoring data. This makes it impossible to accurately reflect the actual carbon emissions inside the flue and fails to meet the stringent requirements of online carbon emission monitoring systems for stationary pollution sources, which demand accurate, complete, and reliable data. This seriously affects the scientific nature of environmental regulatory decisions. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a backflushing module for online monitoring of carbon emissions from flues, which solves the problems of inaccurate data, easy module failure and shutdown, and complex and costly operation and maintenance in traditional monitoring.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a flue gas carbon emission online monitoring backflushing module, comprising: a chimney body, a controller, and a detector. The outer wall of the chimney body is fixedly connected to the controller, and the controller is electrically connected to the detector. A backflushing device is fixedly connected to the inner wall of the chimney body. The backflushing device uses compressed gas to blow away soot. The backflushing device includes an air pump, and the output end of the air pump is fixedly connected to an air blowing pipe. An electric valve is fixedly connected to the outer wall of the air blowing pipe. Combined with the controller's precise control of the electric valve, impurities can be prevented from obstructing the probe or interfering with the sensor signal, ensuring that the flue gas carbon emission data collected by the sensor accurately reflects the actual emission situation.

[0008] Preferably, the outer walls of the air pump and electric valve are located outside the chimney body, and the outer wall of the air blowing pipe is fixedly connected to the inner wall of the chimney body. The core control components such as the air pump and electric valve are all located outside the chimney body to avoid direct contact with the high-temperature and highly corrosive flue gas environment inside the flue, reduce the probability of components being damaged by high-temperature aging and corrosion, and extend the service life of the core components.

[0009] Preferably, the output end of the blowing pipe is fixedly connected to an outer pipe, and the inner wall of the outer pipe has through holes arranged in a circumferential array along the central axis of the outer pipe. The inner wall of the outer pipe is fixedly connected to a limiting cylinder. The limiting cylinder on the inner wall of the outer pipe not only provides stable installation positioning for the sensor, but also reduces the direct impact of impurities in the flue gas on the sensor body through structural protection, further reducing the risk of equipment failure.

[0010] Preferably, the outer wall of the outer tube is fixedly connected to the inner wall of the chimney body.

[0011] Preferably, a sensor is slidably connected to the inner wall of the limiting cylinder, and a probe is fixedly connected to the input end of the sensor. The air blowing pipe and the outer pipe of the back-blowing device are directly fixed to the inner wall of the chimney, without the need for additional complex supports. The through holes of the outer pipe are arranged in a circumferential array, and 360° purging of the probe can be achieved through a single air path. Compared with the multi-pipe purging design, the number of air path connection nodes is reduced, and the risk of air leakage and blockage is reduced.

[0012] Preferably, the outer wall of the sensor is slidably connected to the inner wall of the chimney and the limiting cylinder, and the probe is located inside the through hole.

[0013] Beneficial effects

[0014] This utility model provides a backflushing module for online monitoring of carbon emissions from flues. It has the following beneficial effects:

[0015] This utility model, through the coordinated design of the module with the back-blowing device, detector, and sensor, utilizes compressed gas output from the air pump to form an annular purging airflow through the through holes of the air blowing pipe and the outer pipe. This allows for targeted cleaning of the probe located inside the through holes, effectively removing soot, dust, and condensed impurities adhering to the probe surface. Combined with the precise control of the electric valve by the controller, it can promptly prevent impurities from obstructing the probe or interfering with the sensor signal, ensuring that the carbon emission data collected by the sensor accurately reflects the actual emission situation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the limiting cylinder of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the sensor of this utility model;

[0020] Figure 5 This is a flowchart of the backflushing device of this utility model.

[0021] In the diagram: 1. Chimney body; 2. Backflushing device; 20. Air pump; 21. Air blowing pipe; 22. Electric valve; 23. Outer pipe; 24. Through hole; 25. Limiting cylinder; 26. Sensor; 27. Probe; 3. Controller; 4. Detector. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figure 1-5 This utility model provides a technical solution: an online monitoring and backflushing module for carbon emissions from flues, comprising:

[0025] Chimney body 1, controller 3, detector 4. The outer wall of chimney body 1 is fixedly connected to controller 3, and controller 3 is electrically connected to detector 4. The inner wall of chimney body 1 is fixedly connected to back-blowing device 2. Back-blowing device 2 uses compressed gas to blow away soot. Detector 4 uses data fed back by sensor 26 in back-blowing device 2 to enable controller 3 to remove dust from sensor 26 probe 27 inside chimney body 1. Sensor 26 is an infrared CO2 sensor of type JH-6066 produced by Qingdao Jingcheng Instrument Co., Ltd.

[0026] When the module is running, the back-flushing device 2, which is fixed to the inner wall of the chimney body 1, is the core execution unit. Its air pump 20 and electric valve 22 are installed outside the chimney body 1, which can avoid the influence of the high temperature and high corrosion environment inside the flue. The controller 3 is electrically connected to the detector 4. The controller 3 and the detector 4 can be replaced according to the actual situation of the chimney body 1. The controller 3 receives carbon emission monitoring data and sensor 26 operation status signals fed back by the detector 4 in real time, and determines whether to start back-flushing.

[0027] The back-purge device 2 includes an air pump 20. The output end of the air pump 20 is fixedly connected to an air blowing pipe 21. An electric valve 22 is fixedly connected to the outer wall of the air blowing pipe 21. The outer walls of the air pump 20 and the electric valve 22 are located outside the chimney body 1. The outer wall of the air blowing pipe 21 is fixedly connected to the inner wall of the chimney body 1. When the signal of the detector 4 gradually weakens, the detector 4 transmits a command to the controller 3 to send a command to the electric valve 22. The controller 3 sends a command to the electric valve 22 to open the air path. The compressed gas output by the air pump 20 is delivered to the outer pipe 23 through the air blowing pipe 21. Since the outer pipe 23 is fixed to the inner wall of the chimney body 1, and the through holes 24 arranged in a circular array on its inner wall are directly opposite the probe 27 located inside, the compressed gas forms an annular purge airflow through the through holes 24 to clean the probe 27 360° without dead angles, effectively removing soot, dust and condensed impurities attached to the surface, and avoiding impurities from blocking the probe 27 or interfering with the signal of the sensor 26.

[0028] An outer tube 23 is fixedly connected to the output end of the air blowing pipe 21. A through hole 24 is formed on the inner wall of the outer tube 23, and the through holes 24 are arranged in a circumferential array along the central axis of the outer tube 23. A limiting cylinder 25 is fixedly connected to the inner wall of the outer tube 23 and the inner wall of the chimney body 1. A sensor 26 is slidably connected to the inner wall of the limiting cylinder 25. A probe 27 is fixedly connected to the input end of the sensor 26. The outer wall of the sensor 26 is slidably connected to the inner wall of the chimney body 1 and the limiting cylinder 25. The probe 27 is located inside the through hole 24. Simultaneously, the limiting cylinder 25 inside the outer tube 23 serves a dual function: firstly, it provides a sliding connection for the sensor 26. 6. Provides stable positioning to ensure that the probe 27 is always in the optimal monitoring position. Secondly, through structural protection, it reduces the direct impact of impurities in the flue on the main body of the sensor 26. After the purging is completed, the controller 3 closes the electric valve 22, the air circuit is disconnected, and the back-purge device 2 returns to standby state. Since the sensor 26 is slidably connected to the limit cylinder 25 and the chimney body 1, it can be directly pulled out for inspection or replacement during routine maintenance without disassembling the back-purge air circuit. The controller 3 can also flexibly adapt to different scenarios by adjusting the opening and closing time of the electric valve 22 and the output pressure of the air pump 20 according to the flue conditions, ultimately achieving accurate monitoring of carbon emission data and stable operation of the module.

[0029] During use, the detector 4 uses the data fed back by the sensor 26 in the back-blowing device 2 to enable the controller 3 to remove dust from the sensor 26 probe 27 inside the chimney body 1. The sensor 26 is a JH-6066 model manufactured by Qingdao Jingcheng Instrument Co., Ltd.

[0030] When the module is running, the back-flushing device 2, which is fixed to the inner wall of the chimney body 1, is the core execution unit. Its air pump 20 and electric valve 22 are installed outside the chimney body 1, which can avoid the influence of the high temperature and high corrosion environment inside the flue. The controller 3 is electrically connected to the detector 4. The controller 3 and the detector 4 can be replaced according to the actual situation of the chimney body 1. The controller 3 receives carbon emission monitoring data and sensor 26 operating status signals from the detector 4 in real time to determine whether to start back-flushing.

[0031] When the signal of the detector 4 gradually weakens, the detector 4 sends a command to the controller 3 to send a command to the electric valve 22 to open the air path. The compressed gas output by the air pump 20 is delivered to the outer pipe 23 through the air blowing pipe 21. Since the outer pipe 23 is fixed to the inner wall of the chimney body 1, and the through holes 24 arranged in a circular array on its inner wall are directly opposite the probe 27 located inside, the compressed gas forms a ring-shaped blowing airflow through the through holes 24 to clean the probe 27 360° without dead angles, effectively removing soot, dust and condensed impurities attached to the surface, and avoiding impurities from blocking the probe 27 or interfering with the signal of the sensor 26.

[0032] At the same time, the limiting cylinder 25 inside the outer tube 23 plays a dual role. First, it provides stable positioning for the slidingly connected sensor 26, ensuring that the probe 27 is always in the optimal monitoring position. Second, through structural protection, it reduces the direct impact of impurities in the flue on the main body of the sensor 26. After the purging is completed, the controller 3 closes the electric valve 22, the air circuit is disconnected, and the back-purging device 2 returns to standby state.

[0033] Since the sensor 26 is slidably connected to the limiting cylinder 25 and the chimney body 1, it can be directly pulled out for inspection or replacement during routine maintenance without disassembling the backflushing gas path. The controller 3 can also flexibly adapt to different scenarios by adjusting the opening and closing time of the electric valve 22 and the output pressure of the air pump 20 according to the flue conditions, ultimately achieving accurate monitoring of carbon emission data and stable operation of the module.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flue gas duct carbon emission online monitoring backflushing module, comprising: The chimney body (1), controller (3), and detector (4) are characterized by: The outer wall of the chimney body (1) is fixedly connected to the controller (3), the controller (3) is electrically connected to the detector (4), and the inner wall of the chimney body (1) is fixedly connected to the back-blowing device (2), which uses compressed gas to blow the soot. The backflushing device (2) includes an air pump (20), the output end of which is fixedly connected to an air blowing pipe (21), and an electric valve (22) is fixedly connected to the outer wall of the air blowing pipe (21).

2. The flue gas carbon emission online monitoring backflushing module according to claim 1, characterized in that: The outer walls of the air pump (20) and the electric valve (22) are located outside the chimney body (1), and the outer wall of the air blowing pipe (21) is fixedly connected to the inner wall of the chimney body (1).

3. The flue gas carbon emission online monitoring backflushing module according to claim 1, characterized in that: The output end of the air blowing pipe (21) is fixedly connected to an outer pipe (23). The inner wall of the outer pipe (23) is provided with a through hole (24). The through holes (24) are arranged in a circular array along the central axis of the outer pipe (23). The inner wall of the outer pipe (23) is fixedly connected to a limit cylinder (25).

4. The flue gas carbon emission online monitoring backflushing module according to claim 3, characterized in that: The outer wall of the outer tube (23) is fixedly connected to the inner wall of the chimney body (1).

5. The flue gas carbon emission online monitoring backflushing module according to claim 3, characterized in that: A sensor (26) is slidably connected to the inner wall of the limiting cylinder (25), and a probe (27) is fixedly connected to the input end of the sensor (26).

6. The flue gas carbon emission online monitoring backflushing module according to claim 5, characterized in that: The outer wall of the sensor (26) is slidably connected to the inner wall of the chimney (1) and the limiting cylinder (25), and the probe (27) is located inside the through hole (24).

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