Online monitoring device of tail gas treatment equipment

Abstract

The utility model relates to the technical field of tail gas treatment, and discloses an on-line monitoring device of tail gas treatment equipment, which comprises an on-line monitoring mechanism, main gas inlet and outlet assemblies are arranged at two ends of the on-line monitoring mechanism, and the on-line monitoring mechanism comprises three branch pipelines which are equidistantly arranged from top to bottom. By adopting a separated multi-branch on-line monitoring structure design, the multi-branch on-line monitoring device comprises a main air inlet pipeline and a main exhaust pipeline on two sides, the main air inlet pipeline and the main exhaust pipeline are respectively connected with a four-way joint, and three independent branch monitoring pipelines are connected between corresponding interfaces of the two four-way joints at equal intervals from top to bottom. An electrochemical sensor, an infrared absorption type sensor and a laser spectrum type sensor are respectively arranged in three independent branch monitoring pipelines, that is, only a single type of gas pollution monitoring device is arranged in the same branch monitoring pipeline; and mutual interference among an electrochemical sensor, an infrared absorption type sensor and a laser spectrum type sensor is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas treatment technology, specifically to an online monitoring device for exhaust gas treatment equipment. Background Technology

[0002] There are various types of online monitoring devices for exhaust gas treatment equipment. Classified by application scenario, stationary source exhaust gas monitoring devices are mainly used for monitoring exhaust gases from stationary pollution sources such as industrial boilers, kilns, and power plants. They typically employ online gas analyzers, particulate matter monitors, etc., introducing exhaust gas into the monitoring equipment through a sampling system for real-time and continuous monitoring, and transmitting the data to the environmental protection department or the enterprise's monitoring center.

[0003] The existing online monitoring devices for exhaust gas treatment equipment still have the following problems when in use: there is a certain degree of cross-interference in their sensors. Since the gas pollution monitoring devices include three types, namely electrochemical sensors, infrared absorption sensors and laser spectroscopy sensors, they are usually installed in the same exhaust pipe and perform gas pollution monitoring. The three types of sensors are very prone to mutual interference, resulting in inaccurate measurement results. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an online monitoring device for exhaust gas treatment equipment, solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an online monitoring device for exhaust gas treatment equipment, comprising an online monitoring mechanism, with main inlet and outlet gas assemblies at both ends of the online monitoring mechanism, the online monitoring mechanism including three branch pipes arranged at equal distances from top to bottom, with symmetrical assembly joints at the top of the branch pipes, electrochemical sensors installed on the internal threads of the two upper assembly joints, infrared absorption sensors installed on the internal threads of the two middle assembly joints, and laser spectral sensors installed on the internal threads of the two lower assembly joints, the main inlet and outlet gas assemblies including branch control valves threadedly installed at the interfaces at both ends of the branch pipes, and double-ended connectors threadedly connected to the interfaces at the ends of the three branch control valves on the same side away from the branch pipes, and the same four-way connector threadedly connected to the interfaces at the ends of the three double-ended connectors on the same side away from the branch pipes.

[0008] As a further improvement of this utility model, a connecting flange is fixedly connected to each of the two four-way connectors at one end of their respective interfaces.

[0009] As a further embodiment of this utility model: a through groove is provided at the center of the front end of the branch pipe, and an observation window is fixedly installed in the through groove. Two supports are symmetrically fixedly connected to the middle of the top end of the branch pipe, and the same data processing host is fixedly installed at the top of the two supports. The electrochemical sensor, the infrared absorption sensor and the laser spectroscopy sensor are respectively connected to the data processing host on their corresponding side through anti-interference lines.

[0010] As a further improvement of this utility model: the front end of the data processing host is provided with a data display screen, and the middle of the rear end of the data processing host is provided with a data transmission interface.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, a multi-branch online monitoring structure with a segmented design is adopted, which includes a main intake pipe and a main exhaust pipe on both sides. Each of the two pipes is connected to a four-way connector. Three independent branch monitoring pipes are connected equidistantly from top to bottom between the corresponding interfaces of the two four-way connectors. Each of the three independent branch monitoring pipes is equipped with an electrochemical sensor, an infrared absorption sensor, and a laser spectroscopy sensor. That is, only a single type of gas pollution monitoring device is set in the same branch monitoring pipe, which effectively avoids mutual interference between the electrochemical sensor, the infrared absorption sensor, and the laser spectroscopy sensor and improves the accuracy of the measurement results.

[0013] 2. In this utility model, the four-way connector is connected to the three independent branch monitoring pipelines by a threaded connection, and the four-way connector on one side is also connected to the main intake pipe by a threaded connection, while the four-way connector on the other side is also connected to the main exhaust pipe by a threaded connection. The pipeline equipment of the overall online monitoring device is easy to maintain, repair and replace. Attached Figure Description

[0014] Figure 1 This is a perspective view of the entire utility model;

[0015] Figure 2 This utility model provides a three-dimensional online monitoring mechanism. Figure 1 ;

[0016] Figure 3 This utility model provides a three-dimensional online monitoring mechanism. Figure 2 ;

[0017] Figure 4 This is a perspective view of the main air intake and exhaust assembly of this utility model.

[0018] In the diagram: 1. Online monitoring mechanism; 2. Main inlet / outlet air assembly; 11. Branch pipeline; 12. Assembly joint; 13. Electrochemical sensor; 14. Infrared absorption sensor; 15. Laser spectroscopy sensor; 16. Support bracket; 17. Data processing host; 18. Anti-interference line; 19. Data transmission interface; 110. Data display screen; 111. Observation window; 21. Branch control valve; 22. Double-ended connector; 23. Four-way connector; 24. Connecting flange. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] It should be noted that the electrochemical sensor 13, the infrared absorption sensor 14, and the laser spectroscopy sensor 15 are all existing technologies and are all used for gas pollution monitoring in exhaust gas monitoring. They are common knowledge to those skilled in the art and will not be elaborated upon here.

[0023] Please see Figures 1-4In this embodiment of the present invention, an online monitoring device for an exhaust gas treatment equipment includes an online monitoring mechanism 1. The online monitoring mechanism 1 has main inlet / outlet gas assemblies 2 at both ends. The online monitoring mechanism 1 includes three branch pipes 11 arranged at equal intervals from top to bottom. Assembly joints 12 are symmetrically arranged at the top of each branch pipe 11. Electrochemical sensors 13 are threaded onto the two upper assembly joints 12, infrared absorption sensors 14 are threaded onto the two middle assembly joints 12, and laser spectroscopy sensors 15 are threaded onto the two lower assembly joints 12. The main inlet / outlet gas assembly 2 includes branch control valves 21 threaded onto the interfaces at both ends of the branch pipes 11. Double-ended connectors 22 are threaded onto the interfaces at the ends of the three branch control valves 21 on the same side furthest from the branch pipes 11. Three double-ended connectors 22 on the same side are threaded to the same four-way connector 23 at the end of the connector away from the branch pipe 11. The whole structure adopts a split multi-branch online monitoring structure design, which includes the main air intake pipe and the main exhaust pipe on both sides. Each of them is connected to a four-way connector 23. The corresponding interfaces of the two four-way connectors 23 are connected to three independent branch monitoring pipes at equal intervals from top to bottom. Each of the three independent branch monitoring pipes is equipped with an electrochemical sensor 13, an infrared absorption sensor 14, and a laser spectral sensor 15. That is, only a single type of gas pollution monitoring device is set in the same branch monitoring pipe, which effectively avoids mutual interference between the electrochemical sensor 13, the infrared absorption sensor 14, and the laser spectral sensor 15, and improves the accuracy of the measurement results.

[0024] Each of the two four-way connectors 23 has a fixed connecting flange 24 at one end. The overall online monitoring device can be connected to the exhaust pipe of the exhaust gas treatment equipment through the connecting flanges 24 on both sides and the connecting assembly.

[0025] A through groove is provided at the center of the front end of the branch pipe 11, and an observation window 111 is fixedly installed in the through groove to observe the exhaust gas passing through the branch pipe 11. Two supports 16 are fixedly connected symmetrically at the middle of the top of the branch pipe 11, and the same data processing host 17 is fixedly installed at the top of the two supports 16. The electrochemical sensor 13, the infrared absorption sensor 14, and the laser spectroscopy sensor 15 are respectively connected to the data processing host 17 on their corresponding side through anti-interference lines 18. The data processing host 17 can receive gas pollution data monitored by multiple sensors and perform analysis and processing.

[0026] The data processing host 17 has a data display screen 110 at the front end and a data transmission interface 19 at the middle of the rear end. The analyzed and processed gas pollution data can be fed back through the data display screen 110 at the front end and transmitted to the terminal device for feedback through the data transmission interface 19 via a transmission line.

[0027] The working principle of this utility model is as follows: The overall online monitoring device can be connected to the exhaust pipe of the exhaust gas treatment equipment through the connecting flanges 24 on both sides and the connecting components. Its data processing host 17 can receive gas pollution data monitored by multiple sensors and perform analysis and processing. The analyzed and processed gas pollution data can be fed back through the data display screen 110 on the front side, and transmitted to the terminal equipment for feedback through the data transmission interface 19 via the transmission line. Since the overall adopts a split multi-branch online monitoring structure design, it includes a main air intake pipe and a main exhaust pipe on both sides, each of which is connected to a four-way connector 23. Three independent branch monitoring pipelines are connected equidistantly from top to bottom between the corresponding interfaces of the two four-way connectors 23. Each of the three independent branch monitoring pipelines is equipped with an electrochemical sensor 13, an infrared absorption sensor 14, and a laser spectral sensor 15. That is, only a single type of gas pollution monitoring device is set in the same branch monitoring pipeline, which effectively avoids mutual interference between the electrochemical sensor 13, the infrared absorption sensor 14, and the laser spectral sensor 15, and improves the accuracy of the measurement results.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An online monitoring device of tail gas treatment equipment, comprising an online monitoring mechanism (1), which is provided with main inlet and outlet air assemblies (2) at both ends. characterized in that The online monitoring mechanism (1) comprises three branch pipes (11) arranged in equal distance from top to bottom, and the top ends of the branch pipes (11) are symmetrically provided with assembly joints (12). An electrochemical sensor (13) is internally screwed in the upper two assembly joints (12), an infrared absorption type sensor (14) is internally screwed in the middle two assembly joints (12), and a laser spectrum type sensor (15) is internally screwed in the lower two assembly joints (12). The main inlet and outlet air assemblies (2) comprise branch control valves (21) screwed at the interfaces of both ends of the branch pipes (11), and three branch control valves (21) on the same side are threadedly connected with double-head joints (22) away from the interfaces of one end of the branch pipes (11). Three double-head joints (22) on the same side are threadedly connected with the same four-way joint (23) away from the interfaces of one end of the branch pipes (11).

2. The online monitoring device for tail gas treatment equipment according to claim 1, characterized in that: The interfaces of the four-way joints (23) away from one end are each fixedly connected with a connecting flange (24).

3. The online monitoring device for tail gas treatment equipment according to claim 1, characterized in that: A through slot is formed in the center of the front end of the branch pipe (11), and an observation window (111) is fixedly installed in the through slot.

4. The online monitoring device for tail gas treatment equipment according to claim 1, characterized in that: Two brackets (16) are symmetrically fixedly connected to the top end of the branch pipe (11), and the same data processing host (17) is fixedly installed at the top end of the two brackets (16).

5. The apparatus according to claim 4, wherein: A data display screen (110) is arranged at the front end of the data processing host (17).

6. The apparatus according to claim 4, wherein: A data transmission interface (19) is arranged at the rear end of the data processing host (17).

7. The online monitoring device of tail gas treatment equipment according to claim 1, characterized in that: The electrochemical sensor (13), the infrared absorption type sensor (14), and the laser spectrum type sensor (15) are respectively connected with the data processing host (17) on the corresponding side through anti-interference wires (18).

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