Continuous emission monitoring device for flue gas containing SO2 and Nox

Abstract

The utility model discloses a continuous monitoring device for emission of flue gas containing SO2 and Nox, and relates to the technical field of environmental protection, the continuous monitoring device comprises a mounting base, the top of the mounting base is provided with a continuous monitoring mechanism used for carrying out dust fall on the flue gas without using a filter screen, and the continuous monitoring mechanism comprises a gas collection assembly arranged at the top of the mounting base; the rotating assembly is arranged at the top of the gas collecting assembly; the spraying assembly is arranged in the gas collecting assembly; the monitoring assembly is arranged at the top of the rotating assembly, water is guided into a water distribution box through a water inlet pipe and a connecting pipe by arranging a spraying assembly, then enters each spraying pipe and is sprayed into the gas collecting barrel through a spraying head, so that dust falling of the flue gas in the gas collecting barrel is achieved, particles in the flue gas are filtered, and the gas collecting efficiency is improved. Therefore, the filter screen of the device does not need to be replaced regularly, the operation cost is reduced, and secondary pollution possibly generated in the process of replacing the filter screen is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection, in particular to a continuous emission monitoring device for flue gas containing SO2 and NOx. Background Art

[0002] With the development of industry, the emission of SO2 and NOx in the atmosphere has become an important environmental problem. These pollutants not only have a serious impact on the environment, but also threaten human health.

[0003] According to the patent name: A continuous monitoring device for flue gas emissions (patent publication number: CN219996678U, patent publication date: 2023-11-10), by setting up a dust reduction component, a large amount of dust in the flue gas can be reduced, and the flue gas temperature can also be reduced, thereby reducing the burden on the flue gas filter element and avoiding premature clogging of the flue gas filter element. The flue gas can be further processed by the flue gas filter element to ensure that there are no large particles in the flue gas entering the flue gas detection analyzer. The flue gas filter element can be cleaned by the cleaning component, and when the currently used flue gas filter element is cleaned, the switching component can be used to rotate another flue gas filter element to the port of the flue gas detection analyzer to filter the flue gas to ensure continuous operation of the device.

[0004] Based on the above-mentioned prior art, the existing continuous emission monitoring device for flue gas containing SO2 and NOx still has the following problems: the existing continuous emission monitoring device for flue gas usually uses a filter to filter the dust particles inside the flue gas, but the device is usually installed in a high flue, and the filter needs to be replaced after long-term use. The existing device requires personnel to climb up to work, which is not convenient for replacing the filter. For this reason, the utility model provides a continuous emission monitoring device for flue gas containing SO2 and NOx. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a continuous monitoring device for emissions of flue gas containing SO2 and NOx, which solves the following problems existing in the existing continuous monitoring devices for emissions of flue gas containing SO2 and NOx: the existing continuous monitoring devices for flue gas emissions usually use a filter to filter dust particles inside the flue gas, but the device is usually installed in a high flue, and the filter needs to be replaced after long-term use. The existing device requires personnel to climb high to work, which is inconvenient to replace the filter.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a continuous monitoring device for the emission of flue gas containing SO2 and NOx, including a mounting base, a continuous monitoring mechanism is arranged on the top of the mounting base for reducing dust on the flue gas without using a filter, and the continuous monitoring mechanism includes:

[0007] A gas collecting assembly is arranged on the top of the mounting base and is used to collect the flue gas;

[0008] A rotating assembly is disposed on the top of the gas collecting assembly and is used to provide rotational kinetic energy;

[0009] The spray assembly is arranged inside the gas collecting assembly, and comprises a water separation box, the outer side of the water separation box is fixedly connected with a spray pipe, and the bottom of the spray pipe is fixedly connected with a plurality of spray heads;

[0010] The monitoring component is arranged on the top of the rotating component and is used to monitor the flue gas.

[0011] Preferably, the gas collecting assembly comprises a gas collecting barrel fixedly mounted on the top of the mounting base, a smoke inlet pipe is fixedly mounted on the left side of the gas collecting barrel, and a drain pipe is fixedly mounted on the right side of the gas collecting barrel.

[0012] Preferably, the rotating assembly includes a barrel cover bolted to the top of the gas collecting barrel, a connecting pipe is rotatably installed in the middle of the barrel cover, a worm gear is fixedly installed on the surface of the connecting pipe, a water inlet pipe is rotatably installed inside the connecting pipe, a driving motor is fixedly installed on the top of the barrel cover, a motor shaft is fixedly installed on the output end of the driving motor, and a worm is fixedly installed on the end of the motor shaft away from the driving motor.

[0013] Preferably, the monitoring assembly includes a smoke guide pipe fixedly connected and installed on the top of the barrel cover, a monitoring box is connected and installed on the top of the smoke guide pipe, a first baffle is fixedly installed inside the monitoring box, a second baffle is fixedly installed inside the monitoring box, a third baffle is fixedly installed inside the monitoring box, a mounting plate is fixedly installed inside the monitoring box, and a smoke monitoring sensor is fixedly installed on the bottom of the mounting plate, a top cover is bolted to the top of the monitoring box, and a smoke exhaust pipe is installed on the top of the top cover.

[0014] Preferably, the water diversion box is installed in communication with the bottom end of the connecting pipe.

[0015] Preferably, the worm wheel and the worm are meshingly mounted.

[0016] Preferably, the first baffle, the second baffle and the third baffle are all obliquely mounted plates, and the first baffle, the second baffle and the third baffle are stacked from bottom to top inside the monitoring box.

[0017] The utility model provides a continuous monitoring device for the emission of flue gas containing SO2 and NOx. Compared with the prior art, it has the following beneficial effects:

[0018] (1) The continuous monitoring device for the emission of flue gas containing SO2 and NOx is provided with a spray assembly. Water is introduced into the interior of the water distribution box through the water inlet pipe and the connecting pipe, and then enters the interior of each spray pipe. At the same time, it is sprayed into the interior of the gas collecting barrel through the spray head, thereby achieving dust reduction for the flue gas inside the gas collecting barrel and filtering the particles in the flue gas. Therefore, the device does not need to replace the filter screen regularly, reducing the operating cost and avoiding the possible secondary pollution generated during the replacement of the filter screen.

[0019] (2) The continuous monitoring device for the emission of flue gas containing SO2 and NOx is provided with a monitoring component. After the flue gas passes through the dust reduction filtration inside the gas collecting barrel, it enters the interior of the monitoring box through the smoke guide pipe. The flue gas passes through the first baffle plate, the second baffle plate and the third baffle plate installed inside the gas collecting barrel, thereby realizing the baffle of the flue gas inside the monitoring box, so that the mist particles in the flue gas collide with the baffle plate under the action of inertia and are separated, thereby reducing the droplet content in the flue gas, thereby reducing the interference of the droplets on the detection result and improving the accuracy of flue gas detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a right-side perspective structural diagram of the entire device of the utility model;

[0021] Figure 2 This is a right-side stereoscopic structural diagram of the gas collecting assembly of the utility model;

[0022] Figure 3 It is a right-side perspective structural diagram of some components of the device of the utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the monitoring component of the utility model.

[0024] In the figure: 1-installation base, 2-continuous monitoring mechanism, 21-gas collecting assembly, 211-gas collecting barrel, 212-smoke inlet pipe, 213-drain pipe, 22-rotation assembly, 221-barrel cover, 222-connecting pipe, 223-worm gear, 224-drive motor, 225-motor shaft, 226-worm, 227-water inlet pipe, 23-spray assembly, 231-water distribution box, 232-spray pipe, 233-spray head, 24-monitoring assembly, 241-smoke guide pipe, 242-monitoring box, 243-first baffle, 244-second baffle, 245-third baffle, 246-mounting plate, 247-smoke monitoring sensor, 248-top cover, 249-smoke exhaust pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 , the utility model provides a technical solution:

[0027] The continuous monitoring device for the emission of flue gas containing SO2 and NOx includes a mounting base 1, and a continuous monitoring mechanism 2 is arranged on the top of the mounting base 1 for reducing dust on the flue gas without using a filter. The continuous monitoring mechanism 2 includes:

[0028] The gas collecting assembly 21 is arranged on the top of the mounting base 1 and is used to collect the flue gas;

[0029] The rotating assembly 22 is disposed on the top of the gas collecting assembly 21 and is used to provide rotational kinetic energy;

[0030] The spray assembly 23 is arranged inside the gas collecting assembly 21, and includes a water separation box 231. A spray pipe 232 is fixedly connected and installed on the outside of the water separation box 231. A plurality of spray heads 233 are fixedly connected and installed on the bottom of the spray pipe 232. Water is introduced into the water separation box 231 through the water inlet pipe 227 and the connecting pipe 222, and then enters the inside of each spray pipe 232. At the same time, it is sprayed into the inside of the gas collecting barrel 211 through the spray head 233, so as to achieve dust reduction of the flue gas inside the gas collecting barrel 211 and filter the particles in the flue gas, so that the device does not need to replace the filter screen regularly, which reduces the operating cost and avoids the secondary pollution that may be generated during the replacement of the filter screen.

[0031] The monitoring component 24 is disposed on the top of the rotating component 22 and is used to monitor the flue gas.

[0032] In this embodiment, the gas collecting assembly 21 includes a gas collecting barrel 211 fixedly installed on the top of the mounting base 1, a smoke inlet pipe 212 is fixedly installed on the left side of the gas collecting barrel 211, and a drain pipe 213 is fixedly installed on the right side of the gas collecting barrel 211, thereby achieving dust reduction and filtration of the smoke to be monitored in the internal space of the gas collecting barrel 211.

[0033] In this embodiment, the rotating assembly 22 includes a barrel cover 221 bolted to the top of the gas collecting barrel 211, a connecting pipe 222 is rotatably installed in the middle of the barrel cover 221, a worm gear 223 is fixedly installed on the surface of the connecting pipe 222, and a water inlet pipe 227 is rotatably installed inside the connecting pipe 222. A driving motor 224 is fixedly installed on the top of the barrel cover 221. The driving motor 224 is a three-phase asynchronous motor, which is electrically connected to an external power supply and is opened and closed by a person operating a control panel. A motor shaft 225 is fixedly installed at the output end of the driving motor 224, and a worm 226 is fixedly installed at one end of the motor shaft 225 away from the driving motor 224. The driving motor 224 drives the worm 226 to rotate through the motor shaft 225, and the worm 226 drives the worm gear 223 to rotate. The worm gear 223 drives the connecting pipe 222 to rotate, and at the same time, the connecting pipe 222 drives the spray assembly 23 to rotate, thereby realizing the rotational spraying of the spray assembly 23, so that a uniform water mist spray can be formed, ensuring a wide coverage range and stable and reliable spraying.

[0034] In this embodiment, the monitoring component 24 includes a smoke guide tube 241 fixedly connected and installed on the top of the barrel cover 221, a monitoring box 242 is connected and installed on the top of the smoke guide tube 241, a first baffle 243 is fixedly installed inside the monitoring box 242, a second baffle 244 is fixedly installed inside the monitoring box 242, a third baffle 245 is fixedly installed inside the monitoring box 242, a mounting plate 246 is fixedly installed inside the monitoring box 242, and a smoke monitoring sensor 247 is fixedly installed at the bottom of the mounting plate 246. The model of the smoke monitoring sensor 247 is 5WK96614H. SO2 and NOx in the smoke are monitored by the probe, and the monitored data is transmitted. To the external receiving device for analysis, the top bolts of the monitoring box 242 are installed with a top cover 248, and the top of the top cover 248 is connected to a smoke exhaust pipe 249. After the smoke passes through the dust reduction filtration inside the gas collecting barrel 211, it enters the interior of the monitoring box 242 through the smoke guide pipe 241. The smoke passes through the first baffle 243, the second baffle 244 and the third baffle 245 installed inside the gas collecting barrel 211, thereby realizing the baffle of the smoke inside the monitoring box 242, so that the mist particles in the smoke hit the baffle under the action of inertia and are separated, thereby reducing the droplet content in the smoke. This can reduce the interference of droplets on the detection results and improve the accuracy of smoke detection.

[0035] In this embodiment, the water diversion box 231 is connected and installed with the bottom end of the connecting pipe 222, so that water flows into the interior of the water diversion box 231 for diversion.

[0036] In this embodiment, the worm wheel 223 is meshed with the worm 226 , so that the worm 226 rotates and drives the worm wheel 223 to rotate synchronously.

[0037] In this embodiment, the first baffle 243, the second baffle 244 and the third baffle 245 are all obliquely mounted plates, and the first baffle 243, the second baffle 244 and the third baffle 245 are stacked from bottom to top inside the monitoring box 242, so that a baffle structure is formed between the first baffle 243, the second baffle 244 and the third baffle 245.

[0038] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0039] When working, the user first connects the device to an external power source, and then the smoke enters the interior of the gas collecting barrel 211 through the smoke inlet pipe 212, and at the same time, the water is introduced into the interior of the water distribution box 231 through the water inlet pipe 227 and the connecting pipe 222, and then enters the interior of each spray pipe 232, and is sprayed into the interior of the gas collecting barrel 211 through the spray head 233. When spraying, the driving motor 224 runs to drive the worm 226 to rotate through the motor shaft 225, and the worm 226 drives the worm wheel 223 to rotate, and the worm wheel 223 drives the connecting pipe 222 to rotate, and at the same time, the connecting pipe 222 drives the spray assembly 2 3 rotates to make the spray head 233 rotate and spray, so as to filter the dust inside the installation base 1, and the filtered waste water is discharged through the drain pipe 213, and then the dust-reduced and filtered smoke passes through the smoke guide pipe 241 to enter the interior of the monitoring box 242, and the smoke passes through the first baffle 243, the second baffle 244 and the third baffle 245 installed in the gas collecting barrel 211 to be baffled inside the monitoring box 242, and then passes through the smoke monitoring sensor 247 to monitor SO2 and NOx in the smoke, and the detected smoke is discharged from the smoke exhaust pipe 249 to complete the monitoring.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous monitoring device for flue gas containing SO2 and NOx, comprising a mounting base (1), characterized in that: A continuous monitoring mechanism (2) is provided on the top of the mounting base (1) for reducing dust from the flue gas without using a filter screen, and the continuous monitoring mechanism (2) comprises: A gas collecting assembly (21) is arranged on the top of the mounting base (1) and is used to collect flue gas; A rotating assembly (22) is disposed on the top of the gas collecting assembly (21) and is used to provide rotational kinetic energy; A spray assembly (23) is arranged inside the gas collecting assembly (21), comprising a water separation box (231), a spray pipe (232) is fixedly connected and installed on the outside of the water separation box (231), and a plurality of spray heads (233) are fixedly connected and installed on the bottom of the spray pipe (232); The monitoring component (24) is arranged on the top of the rotating component (22) and is used to monitor the smoke.

2. The continuous monitoring device for emission of flue gas containing SO2 and NOx according to claim 1 is characterized in that: The gas collecting assembly (21) comprises a gas collecting barrel (211) fixedly mounted on the top of the mounting base (1); a smoke inlet pipe (212) is fixedly mounted on the left side of the gas collecting barrel (211); and a drainage pipe (213) is fixedly mounted on the right side of the gas collecting barrel (211).

3. The continuous monitoring device for emission of flue gas containing SO2 and NOx according to claim 2 is characterized in that: The rotating assembly (22) comprises a barrel cover (221) boltedly mounted on the top of the gas collecting barrel (211); a connecting pipe (222) is rotatably mounted in the middle of the barrel cover (221); a worm gear (223) is fixedly mounted on the surface of the connecting pipe (222); a water inlet pipe (227) is rotatably mounted inside the connecting pipe (222); a driving motor (224) is fixedly mounted on the top of the barrel cover (221); a motor shaft (225) is fixedly mounted on the output end of the driving motor (224); and a worm (226) is fixedly mounted on one end of the motor shaft (225) away from the driving motor (224).

4. The continuous monitoring device for emission of flue gas containing SO2 and NOx according to claim 3 is characterized in that: The monitoring assembly (24) comprises a smoke guide pipe (241) fixedly connected and installed on the top of the barrel cover (221); a monitoring box (242) is connected and installed on the top of the smoke guide pipe (241); a first baffle (243) is fixedly installed inside the monitoring box (242); a second baffle (244) is fixedly installed inside the monitoring box (242); a third baffle (245) is fixedly installed inside the monitoring box (242); a mounting plate (246) is fixedly installed inside the monitoring box (242); a smoke monitoring sensor (247) is fixedly installed on the bottom of the mounting plate (246); a top cover (248) is bolted to the top of the monitoring box (242); and a smoke exhaust pipe (249) is connected and installed on the top of the top cover (248).

5. The continuous monitoring device for emission of flue gas containing SO2 and NOx according to claim 3 is characterized in that: The water separation box (231) is installed in communication with the bottom end of the connecting pipe (222).

6. The continuous monitoring device for emission of flue gas containing SO2 and NOx according to claim 3 is characterized in that: The worm wheel (223) is meshingly mounted with the worm (226).

7. The continuous monitoring device for emission of flue gas containing SO2 and NOx according to claim 4 is characterized in that: The first baffle plate (243), the second baffle plate (244) and the third baffle plate (245) are all obliquely mounted plates, and the first baffle plate (243), the second baffle plate (244) and the third baffle plate (245) are stacked from bottom to top inside the monitoring box (242).

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