Energy-saving device for capturing mist

Abstract

The application discloses an energy-saving foam capturing device and belongs to the technical field of gas-liquid separation. The device comprises a support and a tank body. The tank body is located in the middle of the support. A gas outlet is formed in the top of the tank body. An air inlet is formed in the bottom of the tank body. The gas outlet and the air inlet are both arranged in the shape of a horn mouth. A fixed frame is fixedly connected to the middle of the inside of the tank body. A defoaming assembly is arranged in the inside of the fixed frame. The defoaming assembly comprises a wall plate which is hingedly connected to the fixed frame. A foam catcher is arranged in the inside of the wall plate. Horizontal and vertical reinforcing ribs penetrate through the bottom of the foam catcher. Two groups of annular reinforcing ribs are arranged on the outside of the bottom end of the foam catcher. The two groups of annular reinforcing ribs are hingedly connected. Flow rate sensors are arranged on the air inlet and the gas outlet. The device solves the problem that current energy-saving foam capturing devices cannot dynamically adjust operation parameters according to real-time working conditions.

Description

Technical Field

[0001] This invention belongs to the field of gas-liquid separation technology, and specifically relates to an energy-saving mist eliminator. Background Technology

[0002] In industrial production processes such as petrochemicals, salt brine production, and wet desulfurization, the purification of liquid mist-containing gas streams is a key step in ensuring process stability, equipment safety, and compliance with environmental emission standards. Currently, commonly used demisters in the industrial field mainly include wire mesh demisters, baffle plate demisters, and cyclone plate demisters.

[0003] Existing energy-saving mist traps are mostly designed with fixed structures, which cannot dynamically adjust operating parameters according to real-time operating conditions. This phenomenon has become a problem that urgently needs to be solved by people in this field. Summary of the Invention

[0004] The purpose of this invention is to provide an energy-saving mist trapping device for existing devices, in order to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an energy-saving mist-eliminating device, comprising a support and a tank, wherein the tank is located in the middle of the support, the top of the tank has an air outlet, and the bottom of the tank has an air inlet. Both the air outlet and the air inlet are configured in a "trumpet" shape. A fixed frame is fixedly connected to the middle of the interior of the tank. A demisting assembly is arranged inside the fixed frame. The demisting assembly includes a wall panel that is snapped into place with the fixed frame. A mist catcher is arranged inside the wall panel. The top of the mist catcher has horizontal and vertical reinforcing ribs that penetrate its bottom. Two sets of annular reinforcing ribs are arranged on the outer side of the bottom end of the mist catcher. The two sets of annular reinforcing ribs are hinged together. Flow rate sensors are arranged at both the air inlet and the air outlet. A drain pipe is arranged on one side of the bottom of the tank. A liquid level sensor is arranged outside the drain pipe.

[0006] The present invention further describes that the top of the fixed frame is provided with a buckle assembly, the buckle assembly includes a limiting rod fixedly connected to the outer surface of the wall panel, the top of the fixed frame is provided with a limiting groove matching the limiting rod, and both sides of the limiting rod are provided with positioning grooves.

[0007] The present invention further illustrates that the fixed frame has cavities on both sides near the limiting groove, a positioning rod is slidably connected inside the cavity, a return spring is connected between the cavity and the positioning rod, the return spring is sleeved on the outside of the positioning rod, and a guide rod is fixedly connected to the top of the positioning rod.

[0008] The present invention further illustrates that a maintenance groove is provided on one side of the tank body, and a manhole maintenance door is hinged to one side of the maintenance groove.

[0009] The present invention further describes that a water tank is provided on one side of the lower part of the tank, a water pump is installed on the top of the water tank, and water pipes are provided on both sides of the water pump. One side of the water pipe is connected to the water tank, and the other side of the water pipe is connected to multiple sets of atomizing nozzles. The water outlet end of the atomizing nozzles extends into the interior of the tank.

[0010] The present invention further illustrates that the interior of the tank is provided with an airflow equalization component, the airflow equalization component includes a fixing frame fixedly connected to the inner wall of the tank near the air inlet, and the fixing frame is provided in two sets.

[0011] The present invention further illustrates that a support column is fixedly connected between the two sets of fixed frames, the inside of the support column is configured as a hollow structure, and a first diverter plate is fixedly connected inside the support column.

[0012] The present invention further illustrates that the top of the support column is provided with a cover plate, the top of the cover plate is provided with a guide groove, and one side of the guide groove is provided with multiple exhaust ports.

[0013] The present invention further illustrates that the support column is provided with a rotating assembly, the rotating assembly including a rotating shaft connected to a bearing at the bottom center of the first diverter plate, and a second diverter plate fixedly connected to the bottom of the rotating shaft.

[0014] The present invention further illustrates that a gear ring is fixedly connected to the bottom of the second diverter plate, an electric push rod is fixedly connected inside the support column, and a rack is connected to the output end of the electric push rod, the rack meshing with the gear ring.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: In the present invention, the liquid-laden airflow enters from the air inlet at the bottom of the tank, passes through the hollow support column of the airflow distribution component, and is initially divided by the first diverter plate. The electric push rod drives the rack to drive the gear ring to rotate the second diverter plate, and adjusts the overlap with the opening of the first diverter plate to accurately control the airflow speed and distribution. The airflow forms a uniform flow field through the exhaust port of the guide groove. The uniform airflow flows upward through the defoaming component. The defoamer captures liquid droplets through inertial collision and other actions. The horizontal, vertical and annular reinforcing ribs ensure its stability and sealing. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the structure of the first flow divider of the present invention; Figure 4 This is a cross-sectional structural diagram of the first diverter plate of the present invention; Figure 5 This is the invention Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the airflow distribution component of the present invention; Figure 7 This is a bottom view of the airflow distribution component of the present invention. Figure 8 This is a cross-sectional structural diagram of the support column of the present invention; Figure 9 This is the invention Figure 8 Enlarged structural diagram at point B.

[0017] In the diagram: 1. Support; 2. Tank body; 3. Air outlet; 4. Air inlet; 5. Fixing frame; 6. Demister assembly; 601. Wall panel; 602. Demister; 603. Horizontal and vertical reinforcing ribs; 604. Annular reinforcing rib; 701. Limiting rod; 702. Limiting groove; 703. Positioning groove; 704. Cavity; 705. Positioning rod; 706. Return spring; 707. Guide rod; 8. Inspection groove; 9. Manhole inspection door; 10. Water tank; 11. Water pump; 12. Water pipe; 13. Atomizing nozzle; 14. Airflow distribution assembly; 1401. Fixing frame; 1402. Support column; 1403. First flow divider; 1404. Cover plate; 1405. Flow guide groove; 1406. Exhaust port; 15. Rotating assembly; 1501. Rotating shaft; 1502. Second flow divider; 1503. Gear ring; 1504. Electric push rod; 1505. Rack; 16. Flow rate sensor; 17. Drain pipe; 18. Liquid level sensor. Detailed Implementation

[0018] The following detailed, non-limiting description of the technical solution of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-9The present invention provides a technical solution comprising a support 1, a tank 2, and a controller external to the tank 2. The tank 2 is located in the middle of the support 1, which serves as the basic support structure for the device. An air outlet 3 is provided at the top of the tank 2, and an air inlet 4 is provided at the bottom of the tank 2. Both the air outlet 3 and the air inlet 4 are shaped like a trumpet. A fixed frame 5 is fixedly connected to the middle of the interior of the tank 2. A defoaming assembly 6 is provided inside the fixed frame 5. The defoaming assembly 6 includes a wall panel 601 that engages with the fixed frame 5. The wall panel 601 moves from top to bottom and engages with the fixed frame 5. Next, a mist trap 602 is installed inside the wall panel 601. The top of the mist trap 602 has horizontal and vertical reinforcing ribs 603 that run through its bottom. Two sets of annular reinforcing ribs 604 are installed on the outer side of the bottom end of the mist trap 602. The two sets of annular reinforcing ribs 604 are hinged together and fixed by bolts. Both the air inlet 4 and the air outlet 3 are equipped with flow rate sensors 16. The flow rate sensors 16 are used to detect the gas flow rate. A drain pipe 17 is installed on one side of the bottom of the tank body 2. A liquid level sensor 18 is installed on the outside of the drain pipe 17. The liquid level sensor 18 is used to detect the amount of liquid discharged. The horizontal and vertical reinforcing ribs 603 run through the top and bottom of the mist trap 602, enhancing the overall structural strength of the mist trap 602, preventing deformation or damage caused by high-velocity airflow impact, and ensuring the morphological stability of the mist trap element. The two sets of annular reinforcing ribs 604 are hinged and fastened with bolts to firmly fix the mist trap 602 to the wall panel 601, preventing the mist trap 602 from shaking in the airflow, while also enhancing the sealing of the connection between the wall panel 601 and the mist trap 602 to prevent airflow short circuit.

[0020] It should be added that the mist trap 602, as the core demisting element, is composed of a combination of wire mesh, corrugated plate and other structures, and captures liquid droplets in the airflow through inertial collision, interception and diffusion.

[0021] The top of the fixed frame 5 is provided with a buckle assembly, which includes a limiting rod 701 fixedly connected to the outer surface of the wall panel 601. The top of the fixed frame 5 is provided with a limiting groove 702 that matches the limiting rod 701. Positioning grooves 703 are provided on both sides of the limiting rod 701. Cavities 704 are provided on both sides of the fixed frame 5 near the limiting grooves 702. A positioning rod 705 is slidably connected inside the cavity 704. A return spring 706 is connected between the cavity 704 and the positioning rod 705. The return spring 706 is sleeved on the outside of the positioning rod 705. A guide rod 707 is fixedly connected to the top of the positioning rod 705. When maintenance is required, manually pulling the guide rod 707 causes the positioning rod 705 to slide inside the cavity 704, while simultaneously compressing the return spring 706, causing the positioning rod 705 to disengage from the positioning groove 703 of the limiting rod 701. The wall panel 601 can then be pulled out to remove the defogging component 6. When the defogging component 6 is in place, the limiting rod 701 on the wall panel 601 inserts into the limiting groove 702 of the fixed frame 5, achieving initial positioning. At this time, the return spring 706 inside the cavity 704 releases its elastic force, pushing the positioning rod 705 to slide towards the limiting rod 701 and insert into the pre-set positioning groove 703 of the limiting rod 701, forming a mechanical lock to prevent airflow impact from causing component displacement. A maintenance slot 8 is provided on one side of the tank body 2, and a manhole maintenance door 9 is hinged to one side of the maintenance slot 8; The manhole access door 9 is connected to the access slot 8 by a hinge, and when closed, it is sealed with a flange, making maintenance more convenient and efficient.

[0022] A water tank 10 is provided on one side of the lower part of the tank body 2. A water pump 11 is installed on the top of the water tank 10. Water pipes 12 are provided on both sides of the water pump 11. One side of the water pipe 12 is connected to the water tank 10, and the other side of the water pipe 12 is connected to multiple sets of atomizing nozzles 13. The water outlet of the atomizing nozzles 13 extends into the interior of the tank body 2. When salt stains or liquid residue adhere to the surface of the demister 602, the water pump 11 draws cleaning fluid from the water tank 10 and delivers it to multiple atomizing nozzles 13 through the water pipe 12. The atomizing nozzles 13 atomize the cleaning fluid into fine droplets and spray them into the tank 2, covering the entire area below the frame of the demisting assembly 6. The droplet impact and dissolution action removes the deposits on the surface of the demister 602 and restores its demisting efficiency.

[0023] The tank body 2 is equipped with an airflow equalization component 14. The airflow equalization component 14 includes a fixed frame 1401 fixedly connected to the inner wall of the tank body 2 near the air inlet 4. There are two sets of fixed frames 1401. A support column 1402 is fixedly connected between the two sets of fixed frames 1401. The support column 1402 is hollow inside. A first diverter plate 1403 is fixedly connected inside the support column 1402. A cover plate 1404 is provided on the top of the support column 1402. A guide groove 1405 is opened on the top of the cover plate 1404. Multiple exhaust ports 1406 are opened on one side of the guide groove 1405. After the airflow containing liquid droplets enters the tank 2 through the air inlet 4, it first contacts the hollow support column 1402 supported by the fixed frame 1401. The first diverter plate 1403 fixedly installed inside the support column 1402 first divides the airflow into multiple airflows to avoid local airflow concentration. The adhering substances on the surface of the demister 602 are removed through the impact and dissolution of droplets.

[0024] The support column 1402 is equipped with a rotating assembly 15. The rotating assembly 15 includes a rotating shaft 1501 connected to the bearing at the bottom center of the first diverter plate 1403. The bottom of the rotating shaft 1501 is fixedly connected to a second diverter plate 1502. The bottom of the second diverter plate 1502 is fixedly connected to a gear ring 1503. An electric push rod 1504 is fixedly connected inside the support column 1402. The output end of the electric push rod 1504 is connected to a rack 1505. The rack 1505 meshes with the gear ring 1503. By activating the electric push rod 1504, the output end of the electric push rod 1504 can drive the rack 1505 to move. The gear ring 1503, which meshes with the rack 1505, can drive the second diverter plate 1502 to rotate around the rotating shaft 1501. When the overlap of the holes between the first diverter plate 1403 and the second diverter plate 1502 is completely coincident, the airflow channel is at its maximum and the flow rate reaches its peak. When the overlap of the holes between the first diverter plate 1502 and the second diverter plate 1403 is low, the airflow velocity can be reduced, thereby adjusting the airflow velocity and avoiding the decrease in mist collection efficiency due to excessively high velocity or the waste of energy due to excessively slow velocity.

[0025] Working principle: First, the airflow containing liquid droplets enters from the air inlet 4 at the bottom of the tank 2. It first passes through the hollow support column 1402 of the airflow distribution component 14, where the first diverter plate 1403 is fixed inside and initially divides the airflow. Then, the electric push rod 1504 pushes the rack 1505 to move. Through the meshing of the gear ring 1503 and the rack 1505, the second diverter plate 1502 rotates around the rotating shaft 1501, adjusting its overlap with the opening of the first diverter plate 1403. The higher the overlap, the larger the airflow channel and the higher the peak flow rate; the lower the overlap, the slower the flow rate. This achieves precise control of the airflow velocity and distribution. The adjusted airflow then passes through the guide groove at the top of the support column 1402. Multiple exhaust ports 1406 in 1405 uniformly spray out, forming a uniformly distributed flow field across the entire cross-section. The uniform airflow flows upward through the core mist catcher 602 in the demisting assembly 6, capturing liquid droplets of different sizes through inertial collision, interception, and diffusion. The liquid droplets fall due to gravity, achieving gas-liquid separation. Horizontal and vertical reinforcing ribs 603 enhance the mist catcher 602's resistance to airflow impact and deformation. Two sets of annular reinforcing ribs 604 are hinged and fastened with bolts, firmly fixing the mist catcher 602 to the wall panel 601 to prevent shaking and airflow short circuit. The wall panel 601 is slidably connected to the fixed frame 5, and with the buckle assembly 7, the limit rod 701 is inserted into the limit groove 702 during installation, and the return spring... 706 pushes the positioning rod 705 to lock, and pulls the guide rod 707 to unlock during maintenance, enabling quick assembly and disassembly of the components. Airflow parameters are adjusted by controlling the electric push rod 1504. Under normal operating conditions, the overlap of the openings of the two flow plates is preset to 50%-80%, corresponding to a stable airflow velocity of 1.2-2.5 m / s. At this time, the velocity deviation detected by the velocity sensor 16 at the air inlet 4 and the air outlet 3 is ≤15%, and the liquid discharge flow rate is monitored by the liquid level sensor 18 as 6 m³ / h. The liquid flows downward through the guide groove 1405 at the top of the cover plate 1404. If the velocity sensor 16 detects a velocity deviation of >15% at the air inlet and outlet, and the liquid discharge flow rate... If the flow rate is below 6 m³ / h, first determine the overlap of the airflow channels and increase the airflow velocity. If the velocity deviation between the inlet and outlet is still >15% and the discharge flow rate is below 6 m³ / h, it indicates that salt stains or liquid residue are attached to the surface of the demister 602. At this time, the controller automatically starts the water pump 11. The water pump 11 draws cleaning fluid from the water tank 10 and delivers it to multiple sets of atomizing nozzles 13 through the water pipe 12. The atomized droplets spray cover the entire area below the demister assembly 6, and remove the attached substances by impact dissolution. The side inspection groove 8 of the tank 2 cooperates with the manhole inspection door 9 to provide a convenient passage for the disassembly and internal maintenance of the demister assembly 6, ensuring the long-term efficient operation of the device throughout the process.

[0026] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", 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 invention, 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 invention.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features, and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An energy-saving mist trap, comprising a support (1) and a tank (2), characterized in that: The tank (2) is located in the middle of the support (1). The top of the tank (2) is provided with an air outlet (3) and the bottom of the tank (2) is provided with an air inlet (4). Both the air outlet (3) and the air inlet (4) are designed in a "trumpet" shape. A fixed frame (5) is fixedly connected to the middle of the interior of the tank (2). A defoaming assembly (6) is provided inside the fixed frame (5). The defoaming assembly (6) includes a wall panel (601) that is engaged with the fixed frame (5). The tank (2) is equipped with a mist trap (602) inside. The top of the mist trap (602) has horizontal and vertical reinforcing ribs (603) that run through its bottom. The outer side of the bottom end of the mist trap (602) is provided with two sets of annular reinforcing ribs (604). The two sets of annular reinforcing ribs (604) are hinged together. The air inlet (4) and the air outlet (3) are both equipped with flow rate sensors (16). A drain pipe (17) is provided on one side of the bottom of the tank (2). A liquid level sensor (18) is provided on the outside of the drain pipe (17). A water tank (10) is provided on one side of the lower part of the tank (2). A water pump (11) is installed on the top of the water tank (10). Water pipes (12) are provided on both sides of the water pump (11). One side of the water pipe (12) is connected to the water tank (10), and the other side of the water pipe (12) is connected to multiple sets of atomizing nozzles (13). The water outlet of the atomizing nozzle (13) extends into the interior of the tank (2). The tank (2) is provided with an airflow distribution assembly (14) inside. The airflow distribution assembly (14) includes a fixing frame (1401) fixedly connected to the inner wall of the tank (2) near the air inlet (4). The fixing frame (1401) is provided in two sets. A support column (1402) is fixedly connected between the two sets of fixed frames (1401). The support column (1402) has a hollow structure inside and a first diverter plate (1403) is fixedly connected inside the support column (1402). The top of the support column (1402) is provided with a cover plate (1404), the top of the cover plate (1404) is provided with a guide groove (1405), and a plurality of exhaust ports (1406) are provided on one side of the guide groove (1405). The support column (1402) is provided with a rotating assembly (15), which includes a rotating shaft (1501) connected to the bearing at the bottom center of the first diverter plate (1403), and a second diverter plate (1502) is fixedly connected to the bottom of the rotating shaft (1501). The bottom of the second diverter plate (1502) is fixedly connected to a gear ring (1503), and an electric push rod (1504) is fixedly connected inside the support column (1402). The output end of the electric push rod (1504) is connected to a rack (1505), and the rack (1505) meshes with the gear ring (1503).

2. The energy-saving mist-collecting device according to claim 1, characterized in that: The top of the fixed frame (5) is provided with a buckle assembly, which includes a limiting rod (701) fixedly connected to the outer surface of the wall panel (601). The top of the fixed frame (5) is provided with a limiting groove (702) that matches the limiting rod (701), and both sides of the limiting rod (701) are provided with positioning grooves (703).

3. The energy-saving mist-collecting device according to claim 2, characterized in that: The fixed frame (5) has cavities (704) on both sides near the limiting groove (702). A positioning rod (705) is slidably connected inside the cavity (704). A return spring (706) is connected between the cavity (704) and the positioning rod (705). The return spring (706) is sleeved on the outside of the positioning rod (705). A guide rod (707) is fixedly connected to the top of the positioning rod (705).

4. The energy-saving mist-collecting device according to claim 3, characterized in that: A maintenance slot (8) is provided on one side of the tank (2), and a manhole maintenance door (9) is hinged to one side of the maintenance slot (8).

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