Flue gas dedusting equipment for flue gas detection

Abstract

The utility model relates to flue gas detection technical field especially is concerned with a flue gas dust removal equipment for flue gas detection, including detection tower, dust removal structure, detection head and power, the dust removal structure includes round stick and cylinder, two support frames are fixed in the detection tower, the round stick fixedly connected between two support frames, the axis of round stick and the axis of detection tower are on the same straight line, the cylinder fixedly connected in the inner wall of detection tower, the positive pole of power is connected with the cylinder, the negative pole of power is connected with the round stick, the detection head fixedly connected in the top of detection tower inner wall, the bottom of detection tower is provided with the gas inlet, the top of detection tower is provided with the gas outlet, the flue gas after desulfurization enters the detection tower in the gas inlet, the high voltage electric field is formed between the round stick and the cylinder, under the action of electric field, dust moves to the cylinder and deposits, separates dust in the flue gas, prevents dust from adhering to the detection head in later period, influences the detection result of flue gas.

Description

Technical Field

[0001] This utility model relates to the field of flue gas detection technology, and in particular to a flue gas dust removal device for flue gas detection. Background Technology

[0002] Desulfurization refers to the process of removing sulfur from fuel before combustion and desulfurizing flue gas before it is emitted. The flue gas after desulfurization needs to be tested and qualified by existing gas detection devices before it can be discharged into the atmosphere.

[0003] However, a large amount of dust may still remain in the flue gas after desulfurization. Over time, this dust can easily adhere to the gas detection device, directly affecting the detection results and causing inaccurate results. Gas containing a small amount of sulfur dioxide may be directly discharged, causing environmental pollution. Utility Model Content

[0004] In order to remove dust from flue gas before flue gas detection and improve the accuracy of flue gas detection, this utility model provides a flue gas dust removal device for flue gas detection.

[0005] This utility model provides a flue gas dust removal device for flue gas detection, which adopts the following technical solution: A flue gas dust removal device for flue gas detection includes a detection tower, a dust removal structure, a detection head, and a power supply. The dust removal structure includes a round bar and a cylinder. Two support frames are fixed inside the detection tower. The round bar is fixedly connected between the two support frames, and the axis of the round bar is on the same straight line as the axis of the detection tower. The cylinder is fixedly connected to the inner wall of the detection tower. The positive terminal of the power supply is connected to the cylinder, and the negative terminal of the power supply is connected to the round bar. The detection head is fixedly connected to the top of the inner wall of the detection tower. An air inlet is provided at the bottom of the detection tower, and an air outlet is provided at the top of the detection tower.

[0006] By adopting the above technical solution, the desulfurized flue gas enters the detection tower through the inlet. After entering, the flue gas moves upwards in the detection tower, and a high-voltage electric field is formed between the round rod and the cylinder. The electric field strength at the center of the round rod is extremely high, and air molecules are ionized into positive ions, electrons, and negative ions. When the flue gas passes through, the electrons and negative ions attach to the dust, making the dust negatively charged. Under the action of the electric field, the dust moves towards the cylinder and is deposited, separating and removing the dust in the flue gas, preventing the dust from adhering to the detection head later and affecting the detection results of the flue gas.

[0007] Furthermore, a base plate is provided at the bottom of the detection tower, the detection tower is fixedly connected to the base plate, and a support leg is provided at the bottom of the base plate.

[0008] Furthermore, a first solenoid valve is provided on the air outlet, and a central processing unit is provided outside the detection tower. The first solenoid valve is electrically connected to the central processing unit.

[0009] Furthermore, a reflux port is provided on the side of the upper part of the detection tower, and a second solenoid valve is provided on the reflux port. The second solenoid valve is electrically connected to the central processing unit.

[0010] Furthermore, the height of the bottom outer side of the detection tower gradually decreases towards the center, and a dust removal port is provided at the center of the bottom of the detection tower.

[0011] Furthermore, the dust removal structure also includes a dust collection box and a negative pressure pump. The dust collection box is connected to the dust removal port of the detection tower through a first connecting pipe, and the negative pressure pump is connected to the dust collection box through a second connecting pipe. A filter screen is provided inside the dust collection box on the side near the second connecting pipe.

[0012] Furthermore, a vibration motor is fixedly connected to the inner side of the cylinder, and the vibration motor is electrically connected to the central processing unit.

[0013] Furthermore, an insulating layer is provided between the cylinder and the detection tower.

[0014] In summary, this utility model has at least one of the following beneficial technical effects: 1. Through the design of the dust removal structure, a high-voltage electric field is formed between the rod and the cylinder. The electric field strength at the center of the rod is extremely high, and air molecules are ionized into positive ions, electrons, and negative ions. When the flue gas passes through, electrons and negative ions attach to the dust, making the dust negatively charged. Under the action of the electric field, the dust moves towards the cylinder and settles, separating and removing the dust in the flue gas, thus achieving electrostatic dust removal and preventing dust from adhering to the detection head later and affecting the detection results of the flue gas.

[0015] 2. By installing a vibrating motor on the cylinder, when there is a lot of dust deposited on the cylinder, the vibrating motor drives the entire cylinder to vibrate, removing the dust and reducing the impact of excessive dust deposits on the dust removal effect on the flue gas. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a cross-sectional structural diagram of the entire application; Figure 3 This is a structural schematic diagram of the connection between the dust collection box and the detection tower in this application; Figure 4 This is a schematic diagram of the cylindrical structure of this application; Reference numerals: 100, base plate; 110, support leg; 200, detection tower; 210, support frame; 220, air inlet; 230, air outlet; 231, first solenoid valve; 240, reflux port; 241, second solenoid valve; 250, dust removal port; 300, dust removal structure; 310, round bar; 320, cylinder; 330, dust collection box; 331, sealing component; 340, negative pressure pump; 350, first connecting pipe; 360, second connecting pipe; 370, vibration motor; 400, detection head. Detailed Implementation

[0017] It should be understood that all descriptions are given for illustrative purposes only and should not be construed as limiting the present invention in any way. In this document, the technical terms "first" and "second" are used only for distinguishing purposes and are not intended to indicate their order or relative importance. The technical term "connection (or linking, etc.)" covers a specific component being directly connected to another component and / or indirectly connected to another component. Furthermore, unless otherwise expressly specified and limited, the dimensions, directions, or positional relationships indicated by technical terms such as "length," "width," "height," "upper," "top," and "bottom" are based on the dimensions, orientations, or positional relationships shown in the accompanying drawings and are only for the convenience and simplification of the description of the present invention, and should not be construed as limiting the present invention.

[0018] The following combination Figures 1 to 4 The present invention will be described in further detail below.

[0019] This embodiment discloses a flue gas dust removal device for flue gas detection, referring to... Figure 1 The system includes a detection tower 200 for detecting sulfur in flue gas, a dust removal structure 300 for removing dust, a detection head 400, and a power supply. After desulfurization, the flue gas enters the detection tower 200 and moves upwards. A high-voltage electric field is formed at the dust removal structure 300, ionizing air molecules into positive ions, electrons, and negative ions. When the flue gas passes through, electrons and negative ions attach to the dust, making the dust negatively charged. Under the action of the electric field, the dust is separated and removed from the flue gas, preventing dust from adhering to the detection head 400 later and affecting the flue gas detection results.

[0020] Reference Figures 1-2 , Figure 4 In this embodiment, the bottom of the detection tower 200 is provided with a base plate 100, which is rectangular in shape. The detection tower 200 is cylindrical and hollow inside. The detection tower 200 is fixedly connected to the base plate 100, and the bottom of the base plate 100 is provided with a support leg 110.

[0021] The dust removal structure 300 includes a round rod 310 and a cylinder 320, both made of conductive metal material. Two support frames 210 are fixed inside the detection tower 200. The round rod 310 is fixedly connected between the two support frames 210, with the axis of the round rod 310 and the axis of the detection tower 200 aligned. The cylinder 320 is fixedly connected to the inner wall of the detection tower 200, and an insulating layer is provided between the cylinder 320 and the detection tower 200. The positive terminal of the power supply is connected to the cylinder 320, and the negative terminal is connected to the round rod 310. The circuit wiring is located within the inner wall of the detection tower 200. A detection head 400 is fixedly connected to the top of the inner wall of the detection tower 200. An air inlet 220 is located at the bottom of the detection tower 200, and an air outlet 230 is located at the top of the detection tower 200. The detection head 400 uses a sulfur dioxide detector from the prior art, capable of detecting the concentration of sulfur dioxide in flue gas.

[0022] Thus, a high-voltage electric field is formed between the round rod 310 and the cylinder 320. The electric field strength at the center of the round rod 310 is extremely high, and air molecules are ionized into positive ions, electrons, and negative ions. When the flue gas passes through, electrons and negative ions attach to the dust, making the dust negatively charged. Under the action of the electric field, the dust moves towards the cylinder 320 and is deposited. Under the action of gravity, it falls to the bottom of the detection tower 200, thereby removing and collecting dust from the flue gas and preventing dust from adhering to the detection head 400.

[0023] Reference Figures 1-2 In this embodiment, a first solenoid valve 231 is provided on the air outlet 230, and a central processing unit is provided on the outside of the detection tower 200. The first solenoid valve 231 is electrically connected to the central processing unit. A return port 240 is provided on the upper side of the detection tower 200, and a second solenoid valve 241 is provided on the return port 240. The second solenoid valve 241 is electrically connected to the central processing unit. The detection head 400 is also electrically connected to the central processing unit. Specifically, the central processing unit is located inside the controller, which is fixed on the base plate 100. The controller also includes a transmission module, a receiving module, etc.

[0024] Thus, when the detector 400 detects that the flue gas still contains sulfur dioxide, it transmits a signal to the central processing unit. The central processing unit controls the first solenoid valve 231 to close and the second solenoid valve 241 to open, so that the flue gas in the detection tower 200 returns to the desulfurization tower for desulfurization again. When the detector 400 detects that the flue gas does not contain sulfur dioxide, the central controller controls the first solenoid valve 231 to open and the second solenoid valve 241 to close, so that the flue gas is discharged at the outlet 230, ensuring the sulfur dioxide removal rate.

[0025] Reference Figures 2-4In this embodiment, the height of the detection tower 200 gradually decreases from the outer side of the bottom towards the center. A dust removal port 250 is provided at the center of the bottom of the detection tower 200. The dust removal structure 300 also includes a dust collection box 330 and a negative pressure pump 340. The dust collection box 330 is connected to the dust removal port 250 of the detection tower 200 through a first connecting pipe 350. The first connecting pipe 350 passes through the bottom plate 100 and connects to the dust collection box 330. The negative pressure pump 340 is connected to the dust collection box 330 through a second connecting pipe 360. A filter screen is provided on the side of the dust collection box 330 near the second connecting pipe 360. An opening is provided on the side of the dust collection box 330. A sealing member 331 is provided in the opening. A sealing strip is provided on the contact surface between the sealing member 331 and the dust collection box 330. A vibration motor 370 is fixedly connected to the inner side of the cylinder 320. The vibration motor 370 is electrically connected to the central processing unit.

[0026] Thus, the dust deposited on the cylinder 320 will fall to the bottom of the detection tower 200 under the action of gravity. The height of the bottom of the detection tower 200 decreases from the periphery to the center, and the dust will slide to the dust collection port 250. When it is necessary to clean the dust that has fallen inside, the negative pressure pump 340 is turned on, and a negative pressure is generated at the dust collection port 250. The dust is sucked in at the dust collection port 250 and enters the dust collection box 330 through the first connecting pipe 350. The filter screen prevents the dust from entering the negative pressure pump 340, and the sealing part 331 can be opened to clean the dust in the dust collection box 330.

[0027] The implementation principle of this embodiment is as follows: First, after the flue gas enters through the inlet 220, it moves towards the upper part of the detection tower 200. A high-voltage electric field is formed between the round rod 310 and the cylinder 320. The electric field strength at the center of the round rod 310 is extremely high, and air molecules are ionized into positive ions, electrons, and negative ions. When the flue gas passes through, the electrons and negative ions attach to the dust, making the dust negatively charged. Under the action of the electric field, the dust moves towards the cylinder 320 and is deposited. Under the action of gravity, it falls to the bottom of the detection tower 200, thus achieving the removal and collection of dust in the flue gas.

[0028] Then, when the detector head 400 detects that the flue gas still contains sulfur dioxide, it transmits a signal to the central processing unit. The central processing unit controls the first solenoid valve 231 to close and the second solenoid valve 241 to open, so that the flue gas in the detection tower 200 returns to the desulfurization tower for desulfurization again. When the detector head 400 detects that the flue gas does not contain sulfur dioxide, the central controller controls the first solenoid valve 231 to open and the second solenoid valve 241 to close, so that the flue gas is discharged from the outlet 230.

[0029] Dust deposited on cylinder 320 will fall to the bottom of detection tower 200 under the action of gravity. The height of the bottom of detection tower 200 decreases from the periphery to the center, and the dust will slide to the dust collection port 250. When it is necessary to clean the dust that has fallen inside, the negative pressure pump 340 is turned on, and a negative pressure is generated at the dust collection port 250. The dust is sucked in at the dust collection port 250 and enters the dust collection box 330 through the first connecting pipe 350. The filter screen prevents dust from entering the negative pressure pump 340. The sealing part 331 can be opened to clean the dust in the dust collection box 330.

[0030] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A flue gas dust removal device for flue gas detection, characterized in that, The device includes a detection tower, a dust removal structure, a detection head, and a power supply. The dust removal structure includes a round bar and a cylinder. Two support frames are fixed inside the detection tower, and the round bar is fixedly connected between the two support frames. The axis of the round bar is on the same straight line as the axis of the detection tower. The cylinder is fixedly connected to the inner wall of the detection tower. The positive terminal of the power supply is connected to the cylinder, and the negative terminal of the power supply is connected to the round bar. The detection head is fixedly connected to the top of the inner wall of the detection tower. An air inlet is provided at the bottom of the detection tower, and an air outlet is provided at the top of the detection tower.

2. The flue gas dust removal equipment for flue gas detection according to claim 1, characterized in that, The bottom of the detection tower is provided with a base plate, the detection tower is fixedly connected to the base plate, and the bottom of the base plate is provided with support legs.

3. The flue gas dust removal equipment for flue gas detection according to claim 1, characterized in that, A first solenoid valve is installed on the air outlet, and a central processing unit is installed outside the detection tower. The first solenoid valve is electrically connected to the central processing unit.

4. The flue gas dust removal equipment for flue gas detection according to claim 3, characterized in that, A reflux port is provided on the upper side of the detection tower, and a second solenoid valve is provided on the reflux port. The second solenoid valve is electrically connected to the central processing unit.

5. The flue gas dust removal equipment for flue gas detection according to claim 1, characterized in that, The height of the detection tower gradually decreases from the outer side of the bottom towards the center, and a dust removal port is provided at the center of the bottom of the detection tower.

6. The flue gas dust removal equipment for flue gas detection according to claim 1, characterized in that, The dust removal structure also includes a dust collection box and a negative pressure pump. The dust collection box is connected to the dust removal port of the detection tower through a first connecting pipe, and the negative pressure pump is connected to the dust collection box through a second connecting pipe. A filter screen is provided inside the dust collection box on the side near the second connecting pipe.

7. The flue gas dust removal equipment for flue gas detection according to claim 3, characterized in that, A vibration motor is fixedly connected to the inner side of the cylinder, and the vibration motor is electrically connected to the central processing unit.

8. The flue gas dust removal equipment for flue gas detection according to any one of claims 1-7, characterized in that, An insulating layer is provided between the cylinder and the detection tower.

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