A deaeration apparatus

Abstract

The application relates to the field of centrifugal pump equipment, and provides a defoaming device which comprises a first defoaming component, a second defoaming component and a third defoaming component, the first defoaming component comprises a tank body and feeding ports and discharging ports arranged on the tank body for feeding and discharging medium; the second defoaming component comprises a driving component and a rotating defoaming component, the driving component drives the rotating defoaming component to rotate, and the rotating defoaming component is arranged opposite to the central area of the tank body; the third defoaming component comprises a first fixed defoaming component and a second fixed defoaming component, the first fixed defoaming component is in communication with the second fixed defoaming component, the first fixed defoaming component comprises multistage rotating grooves which are arranged towards the rotating defoaming component, and the second fixed defoaming component comprises at least one rotating guide channel for guiding the first fixed defoaming component and the first defoaming component.

Description

Technical Field

[0001] This invention relates to the field of degassing machinery and equipment, and in particular to a multi-stage degassing device. Background Technology

[0002] Defoaming equipment is a device used to remove foam, such as air bubbles, from a medium. With the emergence of many new processes in industrial manufacturing, mineral processing and food processing, the production capacity and efficiency have been greatly improved. However, the amount of foam in the medium during production has also increased dramatically.

[0003] Currently, chemical defoamers are commonly used to eliminate foam in the market. However, the effectiveness of using chemical defoamers to eliminate foam depends on the medium and the chemical properties of the defoamer itself. Many media cannot contain chemical defoamers, or the defoaming effect of chemical defoamers is not good in some media.

[0004] Therefore, there is an urgent need for a method to achieve effective or assisted degassing of media using non-chemical degassing methods, such as physical degassing. However, a single physical degassing process often fails to achieve the optimal degassing effect. Thus, achieving multiple efficient physical degassing processes through mechanical means, while also assisting in chemical degassing, has become a pressing technical problem that needs to be solved. Summary of the Invention

[0005] The main objective of this invention is to provide a degassing device that addresses the problem of poor degassing effect when using only chemical degassing or one-time physical degassing in the prior art.

[0006] To solve the above-mentioned technical problems, the technical solution provided in this application is as follows:

[0007] A degassing device, comprising

[0008] The first degassing component includes a tank and an inlet and an outlet disposed on the tank for the medium to enter and exit, wherein the medium includes foam;

[0009] The second degassing component includes a driving component and a rotating degassing component. The driving component drives the rotating degassing component to rotate, and the rotating degassing component is positioned directly opposite the central area of ​​the tank.

[0010] The third degassing component includes a first fixed degassing component and a second fixed degassing component. The first fixed degassing component is in communication with the second fixed degassing component. The first fixed degassing component includes a multi-stage rotating groove, which is disposed toward the rotating degassing component. The second fixed degassing component includes at least one rotating guide channel to connect the first fixed degassing component and the first degassing component.

[0011] The medium can enter the tank from the inlet and be chemically degassed or physically degassed once by flowing out of the outlet. The medium is sucked into the rotating degasing element for secondary physical degasing and enters the third degasing assembly, and then flows back to the first degasing assembly through the rotating guide channel of the third degasing assembly.

[0012] The medium undergoes secondary physical degassing in a first direction and tertiary physical degassing in a second direction through the multi-stage rotating tank.

[0013] In a preferred embodiment, the second fixed degassing component further includes a plurality of guide impellers, which are arranged along a third direction to form the rotating guide channel. After the medium undergoes three physical degassings in the second direction, it also undergoes four physical degassings in the third direction through the guide impellers.

[0014] In a preferred embodiment, the feed inlet is located at the upper part of the tank body, and the discharge outlet is located at the lower part of the tank body. The feed inlet includes a first feed inlet and a second feed inlet. One end of the first feed inlet opens towards the edge region of the tank body in a fourth direction, one end of the second feed inlet opens towards the edge region of the tank body in a fifth direction, and one end of the discharge outlet opens towards the edge region of the tank body in a sixth direction. When the medium enters the tank body from the first feed inlet in the fourth direction and the second feed inlet in the fifth direction, and flows out of the discharge outlet in the sixth direction, the medium rotates around the lower part of the second degassing component for one physical degassing.

[0015] In a preferred embodiment, the degassing device further includes a suction tube, the second fixed degassing component includes an outer ring and an inner ring, the outer ring and the inner ring are connected by the plurality of guide impellers, the rotating guide channel is located between the outer ring and the inner ring, the inner ring includes a degassing pipe, one end of the suction tube is sleeved on the inner ring, the suction tube is connected to the rotating degassing component through the degassing pipe, and the other end of the suction tube is positioned directly opposite the central area of ​​the tank, the medium is sucked into the rotating degassing component through the suction tube.

[0016] In a preferred embodiment, the rotating degassing member includes a plurality of spaced grids, with one side of each grid facing the rotation axis of the rotating degassing member and the other side facing the multi-stage rotating groove. When the driving member drives the rotating degassing member to rotate, the medium is drawn into the rotating degassing member through the bubble suction tube for secondary physical degassing in the first direction, and passes through the gaps between the grids into the second fixed degassing member.

[0017] In a preferred embodiment, the driving component is a motor, which is located on the upper part of the tank, and the rotation axis of the motor coincides with the rotation axis of the rotating degassing component.

[0018] In a preferred embodiment, the tank body includes an integrally formed cylindrical portion and a conical portion, the first inlet and the second inlet are opened on the cylindrical portion and are disposed towards the conical portion, the outlet is opened on the conical portion, and the second degassing component and the third degassing component are disposed inside the cylindrical portion.

[0019] In a preferred embodiment, the first fixed defoaming component further includes an acute-angled edge, and the multi-stage rotating groove forms a defoaming thread with the acute-angled edge. The end of the defoaming thread is disposed toward the guide impeller, and the guide impeller includes protrusions and / or recesses to increase the friction of the medium flowing on the guide impeller.

[0020] In a preferred embodiment, the second degassing component further includes an encapsulation body, the motor shaft is movably disposed within the encapsulation body, and the encapsulation body covers the top of the first fixed degassing component to encapsulate the rotating degassing component within the first fixed degassing component.

[0021] In a preferred embodiment, the degassing device further includes a water baffle plate disposed between the encapsulation body and the rotating shaft to encapsulate the rotating degassing component within the first fixed degassing component.

[0022] Beneficial effects:

[0023] The degassing equipment of this application, through the cooperation of a first degassing component, a second degassing component, and a third degassing component, can achieve chemical degassing while simultaneously driving a foam-containing medium to move and circulate in multiple different directions via a driving component, thereby achieving efficient multiple physical degassing. The first degassing component includes a tank and an inlet and an outlet disposed on the tank for the medium to enter and exit. The second degassing component includes a driving component and a rotating degassing component, the driving component driving the rotating degassing component to rotate, the rotating degassing component being positioned directly opposite the center area of ​​the tank. The third degassing component includes a first fixed degassing component and a second fixed degassing component, the first fixed degassing component being connected to the second fixed degassing component. The degassing component is connected. The first fixed degassing component includes a multi-stage rotating trough, which is arranged facing the rotating degassing component. The second fixed degassing component includes at least one rotating guide channel to connect the first fixed degassing component and the first degassing assembly. When the medium enters the tank from the feed port and flows out through the discharge port, the foam in the medium is chemically degassed or physically degassed once. The remaining foam in the medium is sucked into the rotating degassing component for secondary physical degassing and enters the third degassing assembly. It then flows back to the first degassing assembly through the rotating guide channel of the third degassing assembly. The medium undergoes secondary physical degassing in the first direction and tertiary physical degassing in the second direction through the multi-stage rotating trough.

[0024] Specifically, when the medium flows into the tank through the inlet, the tank contains a mixture of foam and liquid. Since the specific gravity of the liquid in the medium is much greater than that of the foam, the liquid in the medium will surge at the bottom of the tank and be pumped away by other equipment from the outlet. The rotating liquid will form a vortex in the tank. The appearance of the vortex causes the foam in the medium to continuously rub against the tank wall, eliminating some of the foam in the medium. Under the action of the vortex, the liquid carrying some foam will surge closely against the tank wall, while the other part of the foam will be in the middle of the tank under the action of the vortex. At this time, the drive unit drives the rotating defoaming unit to rotate at high speed, causing air to flow and further creating a negative pressure inside the rotating defoaming unit. Under the action of the pressure difference, the foam inside the tank is lighter and can enter the rotating defoaming unit, where the rotating defoaming unit defoams the foam. Then, it enters the multi-stage rotating tank and guide impeller for defoaming again.

[0025] The degassing equipment in this application achieves multiple physical degassings through mechanical means, and can also assist in chemical degassing, thereby improving the degassing effect of the equipment's medium. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the degassing device in the embodiments of this application.

[0028] Figure 2 This is a schematic diagram of the structure of the upper cover component in an embodiment of this application.

[0029] Figure 3 This is a top view of the degassing device in an embodiment of this application.

[0030] Figure 4 for Figure 3 A cross-sectional view of the degassing equipment along the AA direction.

[0031] Figure 5 for Figure 3 Another cross-sectional view of the degassing equipment in the AA direction.

[0032] Figure 6 This is a schematic diagram of the structure of the second defoamer in the embodiments of this application.

[0033] Figure 7 This is a partial cross-sectional schematic diagram of the second defoamer in an embodiment of this application.

[0034] Icon description:

[0035] 10 - First degassing component;

[0036] 1-Tank body; 11-Inlet; 111-First inlet; 112-Second inlet; 12-Outlet; 13-Conical assembly; 131-Columnar section; 1311-Top plate; 1312-Second ring plate; 132-Conical section; 14-Top cover assembly; 141-Circular plate; 142-Positioning plate; 143-Channel steel; 144-First ring plate; 145-Overflow port; 15-Drainage port flange; 16-Drainage port sealing gasket; 17-Drainage port flange cover;

[0037] 2-Second degassing assembly; 21-Driver; 211-Shaft; 22-Rotating degassing component; 221-Grid; 23-Encapsulation body; 231-Bearing body; 232-Impeller cover; 233-Bearing; 234-Oil seal; 24-Water baffle; 25-Stop bolt; 26-Stop washer;

[0038] 3-Third degassing component; 31-First fixed degassing component; 311-Multi-stage rotating groove; 312-Acute angle edge; 32-Second fixed degassing component; 321-Rotating guide channel; 322-Guide impeller; Outer ring 324; Inner ring 323; 3231-Degassing pipe;

[0039] 4-Suction tube; 41-Conical tube;

[0040] 5-Columns;

[0041] 6-Reinforcing ribs.

[0042] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0044] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0045] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0046] Please see Figure 1-7 This application provides a degassing device, including a first degassing component 10, a second degassing component 2, and a third degassing component 3. The first degassing component 10 includes a tank 1 and an inlet 11 and an outlet 12 disposed on the tank 1 for the medium to enter and exit. The second degassing component 2 includes a driving member 21 and a rotating degassing member 22. The driving member 21 drives the rotating degassing member 22 to rotate, and the rotating degassing member 22 is disposed directly opposite the central area of ​​the tank 1. The third degassing component 3 includes a first fixed degassing member 31 and a second fixed degassing member 32. The first fixed degassing member 31 is connected to the second fixed degassing member 32. The first fixed degassing member 31 includes a multi-stage rotating groove 311. The first fixed deaerator 311 is positioned towards the rotating deaerator 22. The second fixed deaerator 32 includes at least one rotating guide channel 321 to connect the first fixed deaerator 31 and the first deaerator assembly 10. When the medium enters the tank 1 from the feed port 11, the medium flows into the tank 1 through the feed port 11 to chemically deaerator or perform primary physical deaerator on the foam in the medium. The remaining foam is sucked into the rotating deaerator 22 for secondary physical deaerator and enters the third deaerator assembly 3, and then flows back to the first deaerator assembly 10 through the rotating guide channel 321 of the third deaerator assembly 3. Among them, part of the medium is physically deaeratored in the first direction and physically deaeratored in the second direction through the multi-stage rotating tank 311.

[0047] In this embodiment, when the foamed medium flows into the tank 1 through the inlet 11, the tank 1 contains a medium of foam and liquid. Since the specific gravity of the liquid in the medium is much greater than that of the foam, the liquid in the medium will surge at the bottom of the tank 1 and be drawn away by the downstream equipment from the outlet 12. At this time, a vortex will be formed in the tank 1. The appearance of the vortex causes the foam in the medium to continuously rub against the tank wall of the tank 1, eliminating some of the foam in the medium. Under the action of the vortex, the liquid carrying some foam will surge closely against the tank wall of the tank 1. Most of the foam is in the middle of the tank 1 under the action of the vortex. At this time, the drive component 21 drives the rotating defoaming component 22 to rotate at high speed, causing air to flow and further creating a negative pressure inside the rotating defoaming component 22. Under the action of the pressure difference, the foam inside the tank 1, due to its lighter weight, can enter the rotating defoaming component 22, where the rotating defoaming component 22 defoams the foam, and then it enters the multi-stage rotating tank 311 for defoaming again. The degassing equipment in this application enables the medium flowing out of the outlet 12 to undergo efficient degassing treatment, and this degassing treatment is mechanical and less affected by the physical and chemical properties of the medium. It is worth noting that the first direction is the direction of rotation of the rotating degassing component 22, and the second direction is the direction of the slotting of the multi-stage rotating groove 311.

[0048] In this embodiment, for media that can be defoamed with chemical defoaming agents, chemical defoaming can also be performed in the tank 1, followed by mechanical defoaming through the rotating defoaming member 22 and the first fixed defoaming member 31.

[0049] The downstream equipment can be a centrifugal pump. In manufacturing, the outlet 12 of the deaeration equipment is generally connected to a centrifugal pump. If the medium transported by the centrifugal pump contains a large amount of gas, the centrifugal pump will operate very unstablely. Moreover, the collapse of foam in the impeller channel of the centrifugal pump will have a great impact on the impeller. Therefore, if the deaeration equipment does not completely deafene the medium, it will directly affect the performance and service life of the centrifugal pump. In this embodiment, the medium passes through the tank 1 for deaeration and the deaeration component for deaeration before flowing out through the outlet 12. This ensures that the foam in the medium is eliminated before discharge, thereby avoiding damage to the downstream centrifugal pump.

[0050] Furthermore, referring to 6-7, the second fixed degassing component 32 also includes multiple guide impellers 322. The guide impellers 322 are arranged along a third direction to form a rotating guide channel 321. After three physical degassing processes in the second direction, a portion of the medium undergoes a fourth physical degassing process in the third direction via the guide impellers 322. This arrangement ensures greater degassing efficiency. It is worth noting that the third direction refers to the bending direction of the guide impellers 322. In this application, in this embodiment, after the medium flows into the tank 1 in a clockwise direction, under the action of the vortex formed by the rotation of the medium, a part of the foam medium is driven to rotate closely against the tank 1. The foam continuously rubs against the tank wall of the tank 1, thereby eliminating a part of the foam in the medium and realizing the first-stage defoaming process. Further, another part of the foam is located in the middle of the tank 1 under the action of the vortex. At this time, the driving component 21 drives the rotating defoaming component 22 to rotate at high speed, causing air to flow and further creating a negative pressure inside the rotating defoaming component 22. Under the action of the pressure difference, the foam inside the tank 1, due to its lighter weight, can enter the rotating defoaming component 22. At this time, on the one hand, due to the decrease in pressure inside the rotating defoaming component 22, the foam volume gradually increases, thereby causing the foam to burst. On the other hand, the rotation of the rotating defoaming component 22 causes the rotating defoaming component 22 to collide with the foam, thereby causing the foam to burst. The degassing process achieves a two-stage degassing process. Furthermore, for any remaining foam that hasn't burst, the rotating degassing component 22 extends into the first fixed degassing component 31. The rotating component 22 then throws the remaining small amount of foam onto the inner wall of the first fixed degassing component 31. The impact of the foam against the inner wall of the first fixed degassing component 31 causes the small amount of foam to burst, thus achieving a three-stage degassing process. Further, if any unburdened foam remains, it enters with the airflow and impacts the guide impeller 322, achieving a four-stage degassing process. In summary, the degassing device in this embodiment enables three-stage degassing of the foam in the medium, thereby ensuring high degassing efficiency. This greatly reduces the amount of foam carried in the medium, minimizing the foam content of the medium flowing out of the outlet 12, thus improving the service life of downstream equipment. Furthermore, the significant bursting of foam also prevents foam overflow and environmental pollution.

[0051] On the other hand, if there are still unbroken foams, they are re-entered into the tank 1 through the rotating guide channel 321 to repeat the above defoaming process, thereby ensuring the high efficiency of defoaming.

[0052] For details, please refer to Figure 5The rotary degassing component 22 includes an impeller with multiple spaced grids 221. Each grid 221 has one side facing the rotation axis of the rotary degassing component 22 and the other side facing the multi-stage rotating groove 311. When foam enters the grid 221, the drive component 21 drives the grid 221 to rotate for degassing. The remaining foam enters the first fixed degassing component 31 through the space between adjacent grids 221. The medium is drawn into the rotary degassing component 22 through the suction tube 4 for secondary physical degassing in the first direction and passes through the gaps between the grids 221 to enter the second fixed degassing component 32. This arrangement increases the contact area between the grids 221 and the foam and allows the foam to enter the first fixed degassing component 31 through the gaps between the grids 221 for the next stage of degassing.

[0053] In another embodiment, the grid 221 has rotating holes or rotating shafts at its upper and lower ends and rotates on its own axis. The grid 221 rotates on its own axis while the rotating degassing component 22 rotates, which further improves the degassing effect of the grid 221. This is because the rotation of the grid 221 also has a degassing effect, and the degassing will be more thorough. However, the rotation of the grid 221 affects the air pressure inside the bubble suction tube 4 when the rotating degassing component 22 rotates, which is especially suitable for degassing when the liquid ratio in the medium is small or the foam ratio is large.

[0054] Further, please refer to Figure 1-3 The inlet 11 is located at the upper part of the tank body 1, and the outlet 12 is located at the lower part of the tank body 1. The inlet 11 includes a first inlet 111 and a second inlet 112. One end of the first inlet 111 opens towards the edge area of ​​the tank body 1 in a fourth direction, and one end of the second inlet 112 opens towards the edge area of ​​the tank body 1 in a fifth direction. One end of the outlet 12 opens towards the edge area of ​​the tank body 1 in a sixth direction. When the medium enters the tank body 1 from the first inlet 111 in a fourth direction and the second inlet 112 in a fifth direction, and flows out of the outlet 12 in a sixth direction, the medium rotates around the lower part of the second degassing component 2 for one physical degassing. For details, please refer to... Figure 2The inlet 11 is welded to the tank body 1, and its lower outlet is clockwise. This configuration allows the inlet 11 to connect to external pipelines without any dead angles, and the clockwise direction of the lower outlet ensures that the medium flows into the tank body 1 in a clockwise direction, with the medium rotating clockwise within the tank body 1. In this embodiment, the lower end of the inlet 11 can be shaped accordingly to achieve a clockwise outlet; for example, the lower end of the inlet 11 can be bent clockwise. Alternatively, the outlet 12 can also have a clockwise arc design to allow the clockwise rotating medium to exit along the arc of the outlet 12. In another embodiment, the lower outlet can be bent counterclockwise, in which case the medium in the tank body 1 flows counterclockwise, and the corresponding outlet 12 can have a counterclockwise arc design to allow the counterclockwise flowing medium to exit along the arc of the outlet 12. It is worth noting that in this application, the lower outlet of the feed inlet 11 used in the degassing equipment is in a clockwise direction.

[0055] Further, please refer to Figure 2 Multiple feed inlets 11 can be used. When the medium has poor fluidity, i.e., high concentration, high viscosity, and high foam content, multiple feed inlets 11 can be used, such as a first feed inlet 111 and a second feed inlet 112. The lower ends of both the first feed inlet 111 and the second feed inlet 112 are clockwise. This solves the problem of difficult self-feeding when the medium has poor fluidity. Specifically, in this embodiment, the lower ends of the multiple feed inlets 11 are bent clockwise, so that the feeding at the lower end of the feed inlet 11 is in a clockwise direction. Specifically, the fourth direction and the sixth direction form a first angle, and the fifth direction and the sixth direction form a second angle, and the first angle and the second angle are equal. This increases the balance and stability of the tank 1.

[0056] In this embodiment, the driving component 21 is a motor, located on the upper part of the tank 1. The rotation axis of the motor coincides with the rotation axis of the rotating degassing component 22, and the rotation axis 211 of the motor coincides with the centerline of the tank 1. This avoids the motor generating eccentric force, which could cause the tank 1 to tip over during the degassing process.

[0057] Please refer to Figure 4-5The second defoaming component 2 also includes an encapsulation body 23. The grid 221 is rotatably connected to the drive component 21 via a motor shaft 211. The shaft 211 is movably disposed within the encapsulation body 23, and the encapsulation body 23 covers the first fixed defoaming component 31 to encapsulate the grid 221 within the first fixed defoaming component 31. When the drive component 21 drives the grid 221 to rotate, foam enters the grid 221. In this embodiment, when the drive component 21 drives the shaft 211 to rotate, the rotation drives the grid 221 to rotate. The rotation of the grid 221 creates a negative pressure inside the grid 221, thereby the foam in the tank 1 is transported into the flow channel of the grid 221 due to the negative pressure generated inside the grid 221. During the process of being sucked into the grid 221, the pressure inside the grid 221 decreases, and the volume of the foam gradually increases. When the volume increases to a certain extent, the foam with slightly lower viscosity will automatically collapse. The remaining foam with relatively high viscosity is conveyed into the flow channel of grid 221. Subsequently, the foam inside the flow channel of grid 221 is thrown by the highly rotating grid 221 onto the multi-stage rotating groove 311 of the first fixed defoaming member 31. In this embodiment, the encapsulation body 23 includes a bearing body 231, an impeller cover 232, and a bearing 233. The impeller cover 232 is placed on top of the first fixed defoaming member 31, and the impeller cover 232 and the top of the first fixed defoaming member 31 are securely connected by a stop-positioning bolt to seal the first fixed defoaming member 31. The bearing body 231 is installed on top of the impeller cover 232, and the top of the bearing body 231 is fixedly connected to the drive member 21 to support the drive member 21 on the impeller cover 232, ensuring the stability of the overall structure. A bearing 233 is provided inside the bearing body 231 and between the rotating shaft 211 and the bearing body 231, so that the rotating shaft 211 can rotate relative to the bearing body 231 without affecting the bearing body 231. It is worth noting that the bearing 233 is a self-lubricating and sealed bearing 233, thereby ensuring the airtightness of the tank 1. In order to prevent external substances from entering the bearing 233, in this embodiment, an oil seal 234 is installed between the bearing body 231 and the rotating shaft 211 below the bearing 233 to prevent external substances from entering the bearing 233.

[0058] Please refer to Figure 5In this embodiment, the degassing device further includes a baffle plate 24, which is disposed between the encapsulation body 23 and the rotating shaft 211 to encapsulate the grid 221 within the first fixed degassing component 31. Specifically, a baffle plate 24 is installed on the bearing body 231 at the connection between the impeller cover 232 and the bearing body 231 above the grid 221, and the baffle plate 24 is located between the encapsulation component and the rotating shaft 211. In other words, in this embodiment, by installing a baffle plate 24 on the bearing body 231 above the grid 221, the through-hole gap where the rotating shaft 211 passes through the impeller cover 232 is waterproofed, thereby ensuring the sealing below the impeller cover 232. It is worth noting that an oil seal 234 is also provided at the location where the baffle plate 24 is installed on the bearing body 231 to achieve a double seal for the space below the impeller cover 232. This design minimizes the entry of external substances that could affect the quality of the medium and also prevents foam overflow that could pollute the environment. It is worth noting that multiple square holes are provided on the walls surrounding the bearing housing 231 to prevent the medium from increasing in pressure after passing through the baffle plate 24 and oil seal 234, and then passing through the oil seal 234 below the bearing 233, thus damaging the bearing 233 and causing it to fail.

[0059] In this embodiment, please refer to Figure 5 Additionally, a stop washer 26 and a stop bolt 25 can be installed and fastened to the rotating shaft 211 to ensure the balance of the drive component 21 during operation. Furthermore, a standard component such as a flat key can be installed between the grid 221 and the rotating shaft 211 to transmit the torque of the drive component 21, allowing the grid 221 to rotate. An annular frame is fixed to the end of the rotating shaft 211, and multiple blades with the same direction are vertically arranged within the frame to form the grid 221. When the drive component 21 drives the rotating shaft 211 to rotate, the rotating shaft 211 drives the annular frame to rotate, thereby causing the multiple blades to rotate and generate wind. It is worth noting that the drive component 21 can be a motor.

[0060] In this embodiment, the rotating shaft 211 is directly sleeved with the motor rotor. The motor rotor is a drum-shaped rotor or a planar rotor. One end of the rotating shaft 211 is directly sleeved or clamped within the cylindrical cavity formed by multiple iron cores of the drum-shaped rotor. When the motor rotor coil is energized, a rotating magnetic field is generated, causing the drum-shaped rotor to rotate, thereby causing the rotating shaft 211 to rotate. In other words, the rotating shaft 211 can be considered as part of the motor rotor itself, thereby improving the motor's transmission efficiency and stability during rotation. In other embodiments, the rotating shaft 211 can also be indirectly driven through other transmission components, such as gears or belts, thereby facilitating the replacement or maintenance of the motor.

[0061] Please refer to 6-7. In this embodiment, the second fixed defoaming component 32 is provided with a defoaming pipe 3231 inside. The guide impeller 322 is disposed between the outer wall of the first fixed defoaming component 31 and the outer wall of the defoaming pipe 3231. When the rotating defoaming component 22 is running, the foam enters the rotating defoaming component 22 and the first fixed defoaming component 31 in sequence through the inner ring 323 for defoaming. The remaining foam enters the tank 1 through the guide impeller 322. In this embodiment, after primary and secondary defoaming, the rotating grid 221 throws any remaining foam onto the multi-stage rotating groove 311 of the first fixed defoaming component 31 for further defoaming. This defoaming process includes two steps: first, the foam impacts the inner wall of the first fixed defoaming component 31, causing it to burst; if any foam remains after impacting the inner wall of the first fixed defoaming component 31, it will be rapidly impacted by the airflow from the grid 221 and collide with the guide impeller 322 between the defoaming pipe 3231 and the first fixed defoaming component 31. The streamlined guide impeller 322 causes the remaining foam to rub against the pressure generated by the rotation of the grid 221, thus causing the remaining foam to burst. This achieves a three-stage defoaming process. If any unexploded foam remains, it will flow back to tank 1 along the guide impeller 322 under the influence of wind and gravity. At this time, the velocity direction of both defoamed and undefoamed media leaving the guide impeller 322 is consistent with the rotation direction of the media inside tank 1. The wind force at the outlet of the guide impeller 322 further accelerates the intensification of vortices in the media inside tank 1. Subsequently, under the action of the large vortex in tank 1, the unexploded foam is pushed back to the center of tank 1 and then re-enters the rotating defoaming component 22, the first fixed defoaming component 31, and the guide impeller 322 for defoaming. This cycle repeats, completely eliminating the foam carried by the media. In summary, the defoaming device in this embodiment achieves four types of defoaming methods through tank 1, rotating defoaming component 22, first fixed defoaming component 31, and guide impeller 322, maximizing the elimination of foam carried by the media, greatly improving the stability of downstream equipment operation, and extending the service life of downstream equipment.

[0062] In this embodiment, please refer to Figure 7The first fixed defoaming component 31 also includes an acute-angled edge 312, which is a sharp blade-shaped edge with an acute angle between the two sides of its end blade. The acute-angled edge 312 also includes multiple levels and rotates parallel to the rotation direction of the multi-level rotating groove 311 toward the guide impeller 322 of the second fixed defoaming component 32. In this embodiment, the included angle between the two sides of the end blade of the different levels of the acute-angled edge 312 is different because the acute-angled edges 312 with different sharpness have different effects in eliminating foams of different sizes and viscosities. Specifically, the acute-angled edge 312 closer to the bottom of the first fixed defoaming component 31 has a smaller included angle between the two sides of its end blade, and the acute-angled edge 312 closer to the top of the first fixed defoaming component 31 has a larger included angle. This is because larger foams are more likely to appear at the top of the first fixed defoaming component 31, and when disassembling the second defoaming component 2 and the third defoaming component 3, it can also minimize the risk of injury to the disassembly and maintenance personnel caused by the end blade of the acute-angled edge 312.

[0063] The multi-stage rotating groove 311 and the acute-angled edge 312 form a defoaming thread, with the end of the defoaming thread facing the guide impeller 322. The direction of the multi-stage rotating groove 311 is approximately the same as the rotation direction of the grid 221. Specifically, the inner wall of the first fixed defoaming member 31 is provided with a defoaming thread, the direction of which is approximately the same as the rotation direction of the grid 221. With this configuration, the remaining high-viscosity foam in the grid 221 is thrown onto the inner wall of the first fixed defoaming member 31 by the high-speed rotating grid 221. The inner wall of the first fixed defoaming member 31 is designed with a thread structure consistent with the rotation direction of the grid 221. Under the force of the violent impact between the foam and the thread on the inner wall of the first fixed defoaming member 31, the high-viscosity foam is caused to collapse. In the first fixed defoaming component 31, the direction of rotation of the grid 221 is consistent with the downward rotation direction of the thread. Therefore, the remaining foam rubs against the thread surface under the action of wind and rotates downward along the thread. The presence of the thread greatly increases the friction time between the foam and the inner wall. If there is still foam that has not been destroyed after passing through the thread, it will quickly turn and collide with the guide impeller 322 under the action of wind. The guide impeller 322 destroys the foam. The guide impeller 322 also includes protrusions and / or depressions to increase the friction of the medium flowing on the guide impeller 322, so as to further enhance defoaming.

[0064] Please refer to Figure 4-5In this embodiment, the degassing device also includes a suction tube 4. One end of the suction tube 4 is connected to the degassing component, and the other end extends into the tank 1, with the other end positioned directly opposite the center area of ​​the tank. Foam in the tank 1 enters the degassing component through the suction tube 4. When the driving component 21 drives the degassing component to operate, the air in the suction tube 4 is drawn out, causing the pressure inside the suction tube 4 to decrease. The lighter foam in the tank 1 is drawn into the suction tube 4 and enters the rotating degassing component 22 through the suction tube 4. It is worth noting that the suction tube 4 has small holes along its radial direction to allow foam to enter through the small holes.

[0065] Specifically, the second fixed defoaming component 32 includes an outer ring 324 and an inner ring 323, which are connected by multiple guide impellers 322. A rotating guide channel 321 is located between the outer ring 324 and the inner ring 323. The inner ring 323 includes a defoaming pipe 3231, and one end of a suction pipe 4 is connected to one end of the defoaming pipe 3231 of the inner ring 323. The suction pipe 4 is connected to the rotating defoaming component 22 through the defoaming pipe 3231, and the other end of the suction pipe 4 is positioned directly opposite the center area of ​​the tank. When the grid 221 rotates, the pressure inside the suction pipe 4 decreases, and the lighter foam in the tank 1 is drawn into the suction pipe 4 and enters the grid 221 through the suction pipe 4 for subsequent defoaming. In another embodiment, the suction pipe 4 can also pass through the inner ring 323 and be installed close to the rotating defoaming component 22.

[0066] Please refer to the figure. The degassing device in this application also includes a cone tube 41. The cone tube 41 is connected to the end of the suction tube 4 away from the degassing component, and the side with the larger cross-section faces the inside of the tank 1. This arrangement can increase the contact area for absorbing foam, so that more foam can enter the suction tube 4 through the cone tube 41 and then enter the grid 221.

[0067] Please refer to Figure 1 , Figure 5 In this embodiment, the tank 1 includes a conical assembly 13 and a top cover assembly 14. The top cover assembly 14 covers the conical assembly 13, and a second fixed defoaming member 32 is installed on the top cover assembly 14 and communicates with the tank 1. The inlet 11 is opened on the top cover assembly 14, and the outlet 12 is opened on the side wall of the conical assembly 13. This arrangement allows the medium to enter the conical assembly 13 from the top through the inlet 11. Because the foam in the medium is relatively light, it concentrates in the upper part of the conical assembly 13 during rotation, thereby defoaming the foam through the defoaming member. The foam-free medium distributed at the bottom of the conical assembly 13 then enters the next stage equipment through the outlet 12.

[0068] Specifically, the bottom outer end of the second fixed debubbling component 32 is axially positioned with the upper cover assembly 14 by a stop and is fastened by bolts to communicate with the cone assembly 13.

[0069] For details, please refer to Figure 1 , Figure 5 The upper cover assembly 14 includes a circular plate 141, a positioning plate 142, and a channel steel 143. The circular plate 141 covers the cone assembly 13, the feed inlet 11 is opened on the circular plate 141, the channel steel 143 is disposed on the circular plate 141, the positioning plate 142 is disposed on the channel steel 143 and connected to the circular plate 141 at both ends, and the second fixed deaerator 32 is installed on the positioning plate 142. In this embodiment, this arrangement provides positioning for the second fixed deaerator 32, and the channel steel 143 separates the second fixed deaerator 32 and the driving member 21 from the cone assembly 13, thereby reducing the impact of vibration generated during the operation of the driving member 21 on the cone assembly 13. It is worth noting that the bottom outer end of the second fixed deaerator 32 is axially positioned with the positioning plate 142 by a stop and is fastened with bolts to communicate with the cone assembly 13.

[0070] Please refer to the figure. The upper cover assembly 14 also includes a first ring plate 144, which surrounds the circular plate 141 to enclose the circular plate 141, the positioning plate 142 and the channel steel 143 inside it, thereby reducing the impact of the external environment.

[0071] Furthermore, an overflow port 145 is provided around the circular plate 141. In this embodiment, when the degassing equipment malfunctions, there may be a situation where the foam overflows the circular plate 141. At this time, the overflow port 145 can guide the foam into the foam collection tank to prevent the foam from overflowing and polluting the environment.

[0072] Please refer to Figure 5 The cone assembly 13 includes an integrally formed cylindrical part 131 and a cone part 132. A first feed port 111 and a second feed port 112 are opened on the cylindrical part 131 and are arranged facing the cone part 132. A discharge port 12 is opened on the cone part 132. A second degassing assembly 2 and a third degassing assembly 3 are disposed inside the cone part 132.

[0073] The column part 131 includes a top plate 1311, a second ring plate 1312, and a top plate 1311. The top plate 1311 is connected to the circular plate 141 of the upper cover assembly 14 by bolts, and the circular plate 141 and the top plate 1311 are respectively provided with multiple positioning pins for positioning during assembly. The upper end of the second ring plate 1312 is connected to the top plate 1311, and the lower end is connected to the cone part 132. The lower end of the cone part 132 is tangentially provided with a discharge port 12, and the bottom plate is connected to the bottom of the cone part 132.

[0074] Furthermore, a drain port flange 15 is welded to the outside of the base plate. The drain port flange 15 is tightly connected to the drain port flange cover 17 via a drain port sealing gasket 16, specifically by bolts. With this configuration, when drainage is required, the flange cover is opened to allow the dirt in the cone portion 132 to be discharged.

[0075] In this embodiment, the degassing device further includes a column 5, which is sequentially connected to the outside of the conical portion 132 and the second ring plate 1312 to support the conical portion 132. Specifically, a reinforcing rib 6 is provided between the conical portion 132 and the column 5 to increase the connection stability between the column 5 and the conical portion 132.

[0076] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A deaeration apparatus characterized by, The application relates to a three-stage defoaming device for defoaming a medium, which comprises: a first defoaming assembly, which comprises a tank body and a feeding port and a discharging port arranged on the tank body for feeding and discharging the medium containing bubbles; a second defoaming assembly, which comprises a driving member and a rotating defoaming member, wherein the driving member drives the rotating defoaming member to rotate, the rotating defoaming member is arranged opposite to a central region of the tank body, and the rotating defoaming member comprises a plurality of spaced grids; a third defoaming assembly, which comprises a first fixed defoaming member and a second fixed defoaming member, wherein the first fixed defoaming member is in communication with the second fixed defoaming member, the first fixed defoaming member comprises a plurality of rotating grooves, the first fixed defoaming member further comprises an acute-angle edge, the plurality of rotating grooves and the acute-angle edge form a defoaming thread, the plurality of rotating grooves are arranged towards the rotating defoaming member, the direction of the plurality of rotating grooves is consistent with the rotating direction of the grids, the second fixed defoaming member comprises at least one rotating guide channel for guiding the first fixed defoaming member and the first defoaming assembly, and the second fixed defoaming member further comprises a plurality of guide vanes arranged in a third direction to form the rotating guide channel. The medium can enter the tank body from the feeding port, flow out of the discharging port, be subjected to chemical defoaming or primary physical defoaming, be sucked into the rotating defoaming member for secondary physical defoaming, and then enter the third defoaming assembly and flow back to the first defoaming assembly through the rotating guide channel of the third defoaming assembly. Each of the grids is arranged on one side towards the rotating shaft of the rotating defoaming member and on the other side towards the plurality of rotating grooves, when the driving member drives the rotating defoaming member to rotate, the medium is sucked into the rotating defoaming member for first direction secondary physical defoaming through a bubble suction pipe, enters the second fixed defoaming member through the gaps between the grids, and is subjected to second direction third physical defoaming through the plurality of rotating grooves, the medium is subjected to third direction fourth physical defoaming through the guide vanes after the second direction third physical defoaming, the end of the defoaming thread is arranged towards the guide vanes, and the guide vanes are provided with protrusions and / or recesses to increase the friction of the medium flowing on the guide vanes.

2. The deaeration apparatus of claim 1, wherein The feeding port is arranged on the upper portion of the tank body, the discharging port is arranged on the lower portion of the tank body, the feeding port comprises a first feeding port and a second feeding port, one end of the first feeding port is opened and arranged towards the edge region of the tank body in a fourth direction, one end of the second feeding port is opened and arranged towards the edge region of the tank body in a fifth direction, and one end of the discharging port is opened and arranged towards the edge region of the tank body in a sixth direction, when the medium enters the tank body from the first feeding port in the fourth direction and the second feeding port in the fifth direction and flows out of the discharging port in the sixth direction, the medium rotates around the second defoaming assembly for primary physical defoaming.

3. The deaeration apparatus of claim 2, wherein The defoaming device further comprises a bubble suction pipe, the second fixed defoaming component comprises an outer ring and an inner ring, the outer ring and the inner ring are connected by the plurality of guide vanes, the rotating guide channel is located between the outer ring and the inner ring, the inner ring comprises a defoaming pipe, one end of the bubble suction pipe is sleeved with the inner ring, the bubble suction pipe is in communication with the rotating defoaming component through the defoaming pipe, the other end of the bubble suction pipe is arranged opposite to the central region of the tank body, and the medium is sucked into the rotating defoaming component through the bubble suction pipe.

4. The deaeration apparatus of claim 3, wherein The driving component is an electric motor, the electric motor is located at the upper part of the tank body, and the rotating shaft of the electric motor coincides with the rotating shaft of the rotating defoaming component.

5. The deaeration apparatus of claim 4, wherein The tank body comprises an integrally formed columnar part and a conical part, the first feeding port and the second feeding port are arranged on the columnar part and face the conical part, the discharging port is arranged on the conical part, and the second defoaming assembly and the third defoaming assembly are arranged in the columnar part.

6. The deaeration apparatus of claim 5, wherein The second defoaming assembly further comprises an encapsulation body, the rotating shaft of the electric motor is movably arranged in the encapsulation body, and the encapsulation body is arranged on the top of the first fixed defoaming component to encapsulate the rotating defoaming component in the first fixed defoaming component.

7. The deaeration apparatus of claim 6, wherein The defoaming device further comprises a water baffle, the water baffle is arranged between the encapsulation body and the rotating shaft to encapsulate the rotating defoaming component in the first fixed defoaming component.

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