Device for detecting content of large-particle dust in pipeline waste gas

Abstract

The utility model provides a device for detecting the content of large-particle dust in pipeline waste gas, which comprises a main gas inlet pipe and two branch pipes, the main gas inlet pipe is connected with the two branch pipes in a Y shape, the main gas inlet pipe is communicated with the branch pipes, the main gas inlet pipe is provided with a flow measuring assembly, and the flow measuring assembly is connected with the main gas inlet pipe. A blocking assembly is arranged at the joint of the main gas inlet pipe and the branch pipes, a dust falling assembly is arranged on each branch pipe, the blocking assembly can swing to block and separate any branch pipe from the main gas inlet pipe, and a dust content detection assembly is further arranged on each branch pipe and used for detecting the dust content in waste gas in the pipeline. According to the utility model, the two branch pipes capable of detecting the dust content in the airflow are arranged, so that when one branch pipe is maintained or cleaned, the other branch pipe can detect the dust content in the waste gas, and in addition, two different time periods can be detected at one time without cleaning.

Description

Technical Field

[0001] This utility model proposes a device for detecting the content of large particulate dust in pipeline exhaust gas, which belongs to the field of dust removal and detection equipment. Background Technology

[0002] The primary purpose of exhaust gas detection is to ensure the effectiveness of exhaust gas treatment or to determine how to treat it. Exhaust gas contains various components, among which dust pollution is the most common. Dust pollution easily causes smog. Only by accurately detecting the dust content in the exhaust gas can a dust removal method be formulated based on the detected dust content. Existing airflow dust content detection generally uses sensor detection. Sensor detection of dust has the following drawbacks: dust particles easily accumulate on the sensor surface, reducing the sensor sensitivity; moreover, the sensor ages faster due to long-term exposure to the exhaust gas environment, requiring frequent replacement; and most existing exhaust gas dust detectors only have one detection channel, meaning that simultaneous detection cannot be performed when the detection channel is under maintenance or cleaning. Furthermore, existing dust detection equipment can generally only measure dust concentration and cannot detect the specific concentration of dust particles larger than a certain size as needed. For example, the Chinese utility model patent with authorization announcement number CN220019298U has the above-mentioned problems. Summary of the Invention

[0003] This invention provides a device for detecting the content of large particulate dust in pipeline exhaust gas, in order to solve the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a device for detecting the content of large particulate dust in pipeline exhaust gas, comprising a main inlet pipe and two branch pipes, wherein the main inlet pipe and the two branch pipes are connected in a Y-shape and the main inlet pipe and the branch pipes are interconnected; a flow measurement component is provided on the main inlet pipe for detecting the flow rate of the airflow in the pipeline; a blocking component is provided at the connection between the main inlet pipe and the branch pipes; a dust suppression component is provided on each branch pipe for filtering and retaining dust particles in the airflow for detection; the dust suppression component is used to retain dust particles in the airflow; the blocking component can swing to block and separate any branch pipe from the main inlet pipe; and a dust content detection component is also provided on each branch pipe, wherein the dust content detection component comprises a housing, a fine dust receiving part, and a large part dust receiving and weighing part, for detecting the content of large particulate dust in the exhaust gas in the pipeline.

[0005] Preferably, each branch pipe is equipped with at least two sets of dust content detection components.

[0006] Preferably, the sealing assembly includes a pin and a sealing plate, wherein the pin is rotatably disposed at the Y-shaped connection between the main intake pipe and the two branch pipes, one side of the pin is in close contact with the connection of the two branch pipes, the sealing plate is fixedly disposed on the pin, and the length of the sealing plate is greater than the size of the air inlet at the connection between the branch pipe and the main intake pipe, and a handle is provided at the outer end of the pin.

[0007] Preferably, an elastic rubber layer is provided on the outer side of the sealing plate and the outer side of the pin, which can ensure the sealing effect of the sealing.

[0008] Preferably, the dust suppression assembly includes several dust suppression plates, which are sequentially arranged inside the branch pipe. The dust suppression plates are inclined in the direction of airflow inside the branch pipe, and a dust leakage port is opened on the pipe wall below the dust suppression plates.

[0009] Preferably, the top of the first dust-suppressing plate along the airflow direction inside the branch pipe is fixedly connected to the top wall of the inner side of the branch pipe, and the lower end is 1-3cm away from the bottom wall of the branch pipe. The top of the second dust-suppressing plate along the airflow direction is 1-3cm away from the top wall of the branch pipe, and the lower end contacts the bottom wall of the branch pipe and extends downward for 1-3cm to form a guide plate. The dust-suppressing plates at odd-numbered positions along the airflow direction are configured in the same way as the first dust-suppressing plate, and the dust-suppressing plates at even-numbered positions along the airflow direction are configured in the same way as the second dust-suppressing plate.

[0010] Preferably, the dust content detection component is located at the dust leakage port. The dust content detection component includes a housing with an open top, the open end of which is connected to the dust leakage port. A weighing sensor is located at the bottom of the housing. A mesh-like large-particle dust collecting plate is connected to the upper side of the weighing sensor via a support rod. The support rod transfers the weight of the large-particle dust collecting plate and the large dust particles on it to the weighing sensor. A plate-like fine dust collecting plate is positioned between the large-particle dust collecting plate and the weighing sensor. It should be noted that the fine dust collecting plate is the part that collects fine dust, while the mesh-like large-particle dust collecting plate, the support rod, and the weighing sensor are the parts that collect and weigh the large-particle dust.

[0011] Preferably, a support platform is provided on the side wall of the box above the weighing sensor, and the fine dust collection plate is set in the box through the support platform. The fine dust collection plate is provided with through holes for the support rod to pass through.

[0012] Preferably, a connecting flange is provided at the dust leakage port, and a connecting flange is provided at the open end of the box body, and the box body and the dust leakage port are connected by the flange.

[0013] Preferably, the flow measurement component includes a rotating shaft, which is rotatably mounted on the top wall of the main intake pipe. The end of the rotating shaft located outside the main intake pipe is connected to the flow meter, and the end of the rotating shaft located inside the main intake pipe is provided with a fan blade.

[0014] This invention connects two branch pipes to the main intake pipe, and a sealing component is provided at the connection between the main intake pipe and the branch pipe. This allows any branch pipe to be connected to the main intake pipe as an airflow path. Furthermore, each branch pipe is equipped with a dust content detector, so when one path needs cleaning, another path can be selected as the detection path.

[0015] This utility model uses a sealing component installed at the Y-shaped connection. The sealing plate swings with the rotating shaft, so the sealing plate can selectively seal the inlet of one of the branch pipes. Moreover, the sealing plate and the outer side of the pin are covered with a layer of elastic rubber, which acts like a sealing gasket. In addition, with this design, when the sealing plate seals any branch pipe, the airflow blows onto the sealing plate, applying pressure to the sealing plate, which can ensure that the sealing plate seals the branch pipe.

[0016] In this invention, several dust-reducing plates are arranged at an angle. As the airflow flows, large dust particles will fall downwards after hitting the dust-reducing plates. Each dust-reducing plate gradually removes dust from the airflow along the direction of airflow.

[0017] This utility model dust content detection component can screen the dust processed by the dust reduction component and only detect the large dust particles. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention.

[0019] Figure 2 A cross-sectional view of this utility model Figure 1 .

[0020] Figure 3 A cross-sectional view of this utility model Figure 2 . Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] like Figures 1-3 As shown in the figure, the device for detecting the content of large particulate dust in pipeline exhaust gas proposed in this embodiment includes a main air inlet pipe 100 and two branch pipes 200. The main air inlet pipe 100 and the two branch pipes 200 are connected in a Y-shape, and the main air inlet pipe 100 and the branch pipes 200 are interconnected to form an airflow channel.

[0023] In some embodiments, to determine the airflow velocity inside the device for detecting the content of large particulate matter in a unit volume of exhaust gas, a flow measurement component 300 is provided on the main intake pipe 100. This flow measurement component 300 can calculate the airflow rate per unit time, or the time required for a unit airflow rate to pass through, so as to obtain the content of large particulate matter in the airflow based on the detected mass of large particulate matter. Specifically, the flow measurement component 300 includes a rotating shaft rotatably mounted on the top wall of the main intake pipe. One end of the shaft located outside the main intake pipe is connected to a flow meter, and the other end of the shaft located inside the main intake pipe is equipped with fan blades.

[0024] In some embodiments, a blocking assembly 400 is provided at the connection between the main intake pipe 100 and the branch pipes 200, and the blocking assembly 400 can block any one of the branch pipes 200 from the main intake pipe 100. For example, the blocking assembly 400 includes a pin 401 and a blocking plate 402, wherein the pin 401 is rotatably disposed at the Y-shaped connection between the main intake pipe 100 and the two branch pipes 200, one side of the pin 401 is in close contact with the connection of the two branch pipes 200, the blocking plate 402 is fixedly disposed on the pin 401, and the length of the blocking plate 402 is greater than the size of the air inlet at the connection between the branch pipe 200 and the main intake pipe 100, and a handle 403 is provided at the outer end of the pin 401. The blocking assembly 400 can swing to block and separate any branch pipe 200 from the main intake pipe 100. That is, the blocking plate 402 can swing along with the pin 401 rotating at a certain angle. The end of the swinging blocking plate 402 away from the pin 401 abuts against the inner wall of the main intake pipe 100 on the side where one of the branch pipes 200 is located, thereby isolating the branch pipe 200 from the main intake pipe 100.

[0025] In some embodiments, in order to improve the sealing performance of the plug, an elastic rubber layer (not shown in the figure) is provided on the outer side of the plug plate 402 and the outer side of the pin 401. The elastic rubber layer can ensure the sealing effect of the plug. Of course, the elastic rubber layer can also be provided on the inner wall of the main air intake pipe 100, which can also play a sealing role.

[0026] In some embodiments, a dust suppression component 500 is also provided on each branch pipe 200 to remove dust from the airflow. A dust content detection component 600 corresponding to the dust suppression component 500 is also provided on each branch pipe 200 to detect the content of large particulate dust in the exhaust gas inside the pipe.

[0027] It should be noted that each branch pipe 200 is equipped with at least two dust suppression components 500 and two dust content detection components 600 (only one set of dust suppression components and dust content detection components is shown on each branch pipe in the attached figure).

[0028] Specifically, the dust suppression component 500 includes several dust suppression plates 501. The dust suppression plates 501 are plate-shaped structures. Several dust suppression plates 501 are arranged sequentially inside the branch pipe 200. The dust suppression plates 501 are inclined to face the airflow direction inside the branch pipe 200. That is, the upper end of the dust suppression plate 501 is located on the side of the airflow in direction and the lower end is located on the side of the airflow out direction. The branch pipe 200 has a dust leakage port on the pipe wall below the dust suppression plates 501. In this way, large dust particles that fall after being acted upon by the dust suppression plates 501 can fall through the dust leakage port.

[0029] In some embodiments, the top end of the first dust-suppressing plate along the airflow direction inside the branch pipe 200 is fixedly connected to the top wall of the inner side of the branch pipe 200, and the lower end is 1-3 cm away from the bottom wall of the branch pipe. The top end of the second dust-suppressing plate along the airflow direction is 1-3 cm away from the top wall of the branch pipe, and the lower end contacts the bottom wall of the branch pipe and extends downward for 1-3 cm to form a guide plate 502. The dust-suppressing plates at odd-numbered positions along the airflow direction are arranged in the same way as the first dust-suppressing plate, and the dust-suppressing plates at even-numbered positions along the airflow direction are arranged in the same way as the second dust-suppressing plate. That is, a channel for airflow is formed at the upper or lower end of the dust-suppressing plate. The airflow flows back and forth along a serpentine path after passing through the dust-suppressing plate, and large dust particles are gradually removed during the back and forth process.

[0030] In some embodiments, the dust content detection component is disposed on the dust leakage port so that large dust particles falling after passing through the dust settling plate can fall into the box through the dust leakage port.

[0031] It should be noted that the dust content detection component 600 includes a box 601 with an open top. The open end of the box 601 is connected to a dust leakage port. A weighing sensor 602 is installed at the bottom of the box 601. The weighing sensor is an existing product and belongs to existing technology. It should be noted that since the dust collected by the dust collection plate contains both large and fine dust particles, it is necessary to separate the large and fine dust particles in order to detect the large dust particles separately. Therefore, a mesh-like large-particle dust collection plate 604 is connected to the upper side of the load cell via a support rod 603. The support rod 603 transmits the weight of the large-particle dust collection plate 604 and the large-particle dust particles on it to the load cell 602. A plate-like fine-particle dust collection plate 605 is positioned between the large-particle dust collection plate 603 and the load cell 602. The fine-particle dust collection plate 605 is not connected to the load cell to prevent the load cell from detecting the mass of fine dust particles on it. The fine-particle dust collection plate 605 prevents fine dust particles from mixing with the large-particle dust and affecting the detection accuracy. The load cell 602 is fixedly connected to the bottom of the housing 601. The large-particle dust collection plate 604 is connected to the upper side of the load cell 602 via the support rod 603, ensuring that the load cell 602 only measures the weight of the large-particle dust particles on the large-particle dust collection plate 604. Of course, to facilitate data reading, the data reading window of the weighing sensor can be set on the housing.

[0032] In some embodiments, a support platform 601a is provided on the side wall of the housing 601 on the upper side of the weighing sensor 602, and a fine dust collection plate 605 is disposed inside the housing 601 through the support platform 601a, and a through hole is provided on the fine dust collection plate 605 for the support rod 603 to pass through.

[0033] To facilitate disassembly, cleaning, and maintenance, a connecting flange is provided at the dust leakage port, and a connecting flange is provided at the open end of the box body. The box body and the dust leakage port are connected by flanges.

[0034] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A device for detecting the content of large particulate matter in pipeline exhaust gas, comprising a main inlet pipe and two branch pipes, characterized in that, The main intake pipe and two branch pipes are connected in a Y-shape, and the main intake pipe and the branch pipes are interconnected. A flow measurement component is installed on the main intake pipe to detect the airflow rate in the pipe. A sealing component is installed at the connection between the main intake pipe and the branch pipes. A dust suppression component is installed on each branch pipe to screen and retain dust particles in the airflow. The sealing component can swing to seal and separate any branch pipe from the main intake pipe. A dust content detection component is also installed on each branch pipe. The dust content detection component includes a box, a fine dust receiving part, and a large dust receiving and weighing part, used to detect the content of large dust particles in the exhaust gas in the pipe.

2. The device for detecting the content of large particulate dust in pipeline exhaust gas according to claim 1, characterized in that, The sealing assembly includes a pin and a sealing plate. The pin is rotatably disposed at the Y-shaped connection between the main intake pipe and two branch pipes. One side of the pin is in close contact with the connection of the two branch pipes. The sealing plate is fixedly disposed on the pin, and the length of the sealing plate is greater than the size of the air inlet at the connection between the branch pipe and the main intake pipe. A handle is provided at the outer end of the pin.

3. The device for detecting the content of large particulate dust in pipeline exhaust gas according to claim 2, characterized in that, The dust suppression assembly includes several dust suppression plates, which are sequentially arranged inside the branch pipe. The dust suppression plates are inclined in the direction of airflow inside the branch pipe, and a dust leakage port is opened on the pipe wall below the dust suppression plates.

4. The device for detecting the content of large particulate dust in pipeline exhaust gas according to claim 3, characterized in that, The top of the first dust-suppressing plate along the airflow direction inside the branch pipe is fixedly connected to the top wall of the inner side of the branch pipe, and the lower end is 1-3cm away from the bottom wall of the branch pipe. The top of the second dust-suppressing plate along the airflow direction is 1-3cm away from the top wall of the branch pipe, and the lower end contacts the bottom wall of the branch pipe and extends downward for 1-3cm to form a guide plate. The dust-suppressing plates at odd-numbered positions along the airflow direction are set in the same way as the first dust-suppressing plate, and the dust-suppressing plates at even-numbered positions along the airflow direction are set in the same way as the second dust-suppressing plate.

5. The device for detecting the content of large particulate dust in pipeline exhaust gas according to claim 4, characterized in that, The dust content detection component includes a box body with an open top. The open end of the box body is connected to a dust leakage port. A weighing sensor is installed at the bottom of the box body. A mesh-like large-particle dust collection plate is connected to the upper side of the weighing sensor via a support rod. The support rod transmits the gravity of the large-particle dust collection plate and the large-particle dust on it to the weighing sensor. A plate-like fine dust collection plate is installed between the large-particle dust collection plate and the weighing sensor.

6. The device for detecting the content of large particulate dust in pipeline exhaust gas according to claim 5, characterized in that, A support platform is provided on the side wall of the box above the weighing sensor. The fine dust collection plate is set in the box through the support platform. The fine dust collection plate is provided with through holes for the support rod to pass through.

7. The device for detecting the content of large particulate dust in pipeline exhaust gas according to claim 6, characterized in that, The flow measurement component includes a rotating shaft, which is rotatably mounted on the top wall of the main intake pipe. The end of the rotating shaft located outside the main intake pipe is connected to the flow meter, and the end of the rotating shaft located inside the main intake pipe is provided with a fan blade.

Images