Gas-liquid separator for water pollution treatment

Abstract

The invention discloses a gas-liquid separator for water pollution treatment, and relates to the technical field of gas-liquid separators, the gas-liquid separator comprises a cylinder, the upper half section of the interior of the cylinder is fixedly connected with a wire mesh demister, the lower half section of the interior of the cylinder is provided with a flow shielding umbrella, the middle section of the side wall of the cylinder is fixedly connected with a gas-liquid inlet pipe for conveying gas and liquid, and the middle section of the side wall of the cylinder is provided with a flow shielding umbrella. The gas-liquid inlet pipe penetrates through the inner and outer surfaces of the wall body of the cylinder body; the top end of the cylinder body is communicated with a gas outlet pipe; a separation groove matched with the gas-liquid inlet pipe is formed in the upper surface of the flow shielding umbrella and used for slowing down the gas-liquid flow speed. According to the gas-liquid separator for water pollution treatment, by arranging the trapezoidal box, the rubber pad, the baffle and other structures, part of large bubbles can be directly crushed through longitudinal movement of the rubber pad, meanwhile, the rubber pad bulges upwards, negative pressure can be formed in the separation groove, the bubbles are expanded and broken, mechanical impact is matched with the negative pressure effect, and the bubble treatment effect is improved; therefore, the use efficiency of the gas-liquid separator for water pollution treatment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of gas-liquid separators, and in particular to a gas-liquid separator for water pollution treatment. Background Art

[0002] There are many separation structures used in gas-liquid separators, and the separation methods include: gravity sedimentation, baffle separation, centrifugal separation, wire mesh separation, ultrafiltration separation, packing separation, etc. Gas-liquid separators are used in the sewage treatment process.

[0003] For example, a patent entitled: Gas-Liquid Separator (patent application number: CN200820160293.X) discloses a gas-liquid separator. When working, when the pressurized gas and liquid enter from the gas-liquid inlet and pass through the flow shield at the bottom of the cylinder, the flow rate of the gas and liquid is slowed down, so that the pressurized liquid in the gas and liquid is converted to a normal pressure state and slowly flows into the bottom of the cylinder through the gas-liquid through hole. At this time, part of the gas in the cylinder is discharged from the gas outlet through the gas-liquid through hole, and part is directly discharged from the gas outlet, but bubbles are easily generated when the gas and liquid flow on the flow shield, especially when used in sewage treatment. When there are many bubbles, the efficiency of gas-liquid separation will be affected.

[0004] Therefore, it is necessary to propose a gas-liquid separator for water pollution treatment to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a gas-liquid separator for water pollution treatment to solve the problem that bubbles are easily generated when gas and liquid flow on a flow shield, especially when used in sewage treatment. When there are many bubbles, the efficiency of gas-liquid separation will be affected.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gas-liquid separator for water pollution treatment, comprising a cylinder, the upper half of the cylinder is fixedly connected to a wire mesh demister, the lower half of the cylinder is provided with a flow shielding umbrella, the middle section of the cylinder side wall is fixedly connected to a gas-liquid inlet pipe for conveying gas and liquid, and the gas-liquid inlet pipe runs through the inner and outer surfaces of the cylinder wall, and the top of the cylinder is connected to an air outlet pipe;

[0007] The upper surface of the flow shielding umbrella is provided with a separation groove cooperating with the gas-liquid inlet pipe, the separation groove is used to slow down the gas-liquid flow rate, so that the pressurized liquid in the gas-liquid is converted into a normal pressure state, and the bottom end of the separation groove is provided with a gas-liquid through hole for the liquid to flow into the bottom of the cylinder;

[0008] A trapezoidal box is arranged above the flow-shielding umbrella, and a rubber pad is fixedly connected to the bottom end of the trapezoidal box. A baffle is arranged below the flow-shielding umbrella. The rubber pad cooperates with the baffle and covers the upper and lower ends of the separation groove respectively. When suction is applied to the inside of the trapezoidal box, the rubber pad bulges upward, so that negative pressure is formed inside the separation groove, and the bubbles expand and burst.

[0009] Preferably, the cylinder body includes a first cylinder section, a second cylinder section and a third cylinder section which are distributed in sequence from top to bottom, a U-shaped frame is fixedly connected to the outer wall of the first cylinder section, and the U-shaped frame is fixedly connected to the third cylinder section, the second cylinder section is rotatably arranged between the first cylinder section and the third cylinder section, the flow-shielding umbrella is fixedly connected to the inner wall of the second cylinder section, and the gas-liquid inlet pipe is located on the first cylinder section.

[0010] Preferably, the baffle is fixedly connected to the inner wall of the third tube section, and the baffle is attached to the lower surface of the flow-shielding umbrella.

[0011] Preferably, the separation grooves are provided in plurality, and the plurality of separation grooves are evenly distributed around the axis of the flow-shielding umbrella.

[0012] Preferably, a first support plate is fixedly connected to the inner wall of the cylinder, an electric push rod is fixedly connected to the lower surface of the first support plate, and the trapezoidal box is fixedly connected to the telescopic end of the electric push rod.

[0013] Preferably, a first air groove is opened through the top of the trapezoidal box, a wind power system is arranged on the cylinder, the first air groove cooperates with the wind power system, and a first solenoid valve is fixedly arranged inside the first air groove.

[0014] Preferably, the gas-liquid inlet pipe is L-shaped, and the bent portion of the gas-liquid inlet pipe is located inside the cylinder. An airbag is fixedly connected to the inner wall of one end of the gas-liquid inlet pipe inside the cylinder, and an inflatable chamber is formed between the airbag and the inner wall of the gas-liquid inlet pipe.

[0015] Preferably, a second air groove is provided on the gas-liquid inlet pipe, the second air groove is communicated with the inflation chamber, the second air groove cooperates with the wind power system, and a second solenoid valve is fixedly installed inside the second air groove.

[0016] Preferably, a driving assembly for driving the second barrel section to rotate is provided on the outside of the barrel body, and the driving assembly includes a gear ring, a second support plate, a motor and a gear. The second support plate is fixedly connected to the outer wall of the third barrel section, the motor is fixedly connected to the second support plate, the gear is fixedly connected to the driving shaft of the motor, the gear ring is fixedly connected to the outer wall of the second barrel section, and the gear ring is meshingly connected to the gear.

[0017] Preferably, a drainage groove is provided at the bottom end of the cylinder, and an electric control valve is fixedly installed inside the drainage groove.

[0018] Technical effects and advantages of the present invention:

[0019] 1. The present invention provides a trapezoidal box, a rubber pad, a baffle and other structures. The longitudinal movement of the rubber pad can directly crush some larger bubbles. At the same time, the rubber pad bulges upward, which can form a negative pressure inside the separation tank, so that the bubbles expand and burst. The mechanical impact cooperates with the negative pressure to improve the effect of bubble treatment, thereby improving the use efficiency of the gas-liquid separator for water pollution treatment.

[0020] 2. In the process of generating negative pressure, the gas or liquid inside the cylinder will not be directly sucked out to avoid interference with gas-liquid separation;

[0021] 3. During the rotation of the flow-shielding umbrella, the baffle can scrape off the residual liquid on the lower surface of the flow-shielding umbrella to ensure that the bottom of the gas-liquid through hole is unobstructed;

[0022] 4. Multiple separation slots are set on the flow-shielding umbrella, which can simultaneously perform gas-liquid separation and bubble treatment without stopping the machine, thus improving processing efficiency;

[0023] 5. When the gas and liquid are transported from the gas-liquid inlet pipe to the separation tank, the flow shielding umbrella can be controlled to rotate to a certain extent, so that the gas and liquid fall evenly at multiple positions of the separation tank, which is not easy to accumulate and improves the efficiency of gas-liquid separation;

[0024] 6. When the gas and liquid are transported from the gas-liquid inlet pipe to the inside of the cylinder, the airbag can buffer the flow of gas and liquid and reduce the impact force of the gas and liquid. At the same time, the wave-like structure can reduce the flow rate of gas and liquid, thereby reducing the generation of bubbles. The expansion state of the airbag can also control the instantaneous flow rate of gas and liquid;

[0025] 7. The airbag is provided with a bending part of the gas-liquid inlet pipe, which reduces the impact of gas and liquid on the gas-liquid inlet pipe at the position where the gas and liquid change flow direction, thereby extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of a gas-liquid separator for water pollution treatment according to the present invention from one perspective.

[0027] Figure 2 This is a schematic structural diagram of the gas-liquid separator for water pollution treatment from another perspective of the present invention.

[0028] Figure 3 It is a schematic diagram of the cross-sectional structure of the gas-liquid separator for water pollution treatment of the present invention.

[0029] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure in the middle.

[0030] Figure 5 For the present invention Figure 3 Enlarged schematic diagram of the structure at point B in the middle.

[0031] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point C in the middle.

[0032] Figure 7 It is a schematic diagram of the structure of the flow shielding umbrella and the separation trough of the present invention.

[0033] Figure 8 It is a schematic diagram of the structure of the trapezoidal box and the rubber pad of the present invention.

[0034] In the figure: 1, cylinder; 2, flow shielding umbrella; 3, gas-liquid through hole; 4, separation tank; 5, wire mesh demister; 6, air outlet pipe; 7, liquid drain tank; 8, electric control valve; 9, gas-liquid inlet pipe; 10, first cylinder section; 11, second cylinder section; 12, third cylinder section; 13, trapezoidal box; 14, rubber pad; 15, U-shaped frame; 16, baffle; 17, first support plate; 18, electric push rod; 19, first air groove; 20, first solenoid valve; 21, inflation chamber; 22, air bag; 23, second air groove; 24, second solenoid valve; 25, wind system; 26, gear ring; 27, second support plate; 28, motor; 29, gear. DETAILED DESCRIPTION

[0035] The present invention provides Figures 1 to 8 A gas-liquid separator for water pollution treatment shown in the figure includes a cylinder 1, and a gas-liquid inlet pipe 9 for conveying gas and liquid is fixedly connected to the middle section of the side wall of the cylinder 1, and the gas-liquid inlet pipe 9 passes through the inner and outer surfaces of the wall of the cylinder 1. The gas-liquid inlet pipe 9 is connected to an external sewage gas-liquid conveying device (not shown in the figure), such as a pump body, to realize the conveying of gas and liquid. The gas-liquid inlet pipe 9 is L-shaped, and the bent part of the gas-liquid inlet pipe 9 is located inside the cylinder 1. A flow shielding umbrella 2 is provided in the lower half of the cylinder 1. The flow shielding umbrella 2 is truncated cone-shaped, and the outer diameter of the top is small.

[0036] The upper surface of the flow shielding umbrella 2 is provided with a separation groove 4 which cooperates with the gas-liquid inlet pipe 9. The liquid outlet end of the gas-liquid inlet pipe 9 faces downward, which is convenient for conveying gas and liquid into the separation groove 4. The bottom of the separation groove 4 is an inclined surface (refer to Figure 5 ), the separation tank 4 is used to slow down the flow rate of gas and liquid, so that the pressurized liquid in the gas and liquid is converted into a normal pressure state, and the bottom end of the separation tank 4 is provided with a gas-liquid through hole 3 for the liquid to flow into the bottom of the cylinder 1.

[0037] The top end of the cylinder 1 is connected to an air outlet pipe 6 for exhausting gas; the bottom end of the cylinder 1 is provided with a drainage groove 7, inside which an electric control valve 8 is fixedly installed; the drainage groove 7 can be connected to an external liquid collection container to recover the liquid after gas-liquid separation.

[0038] At the same time, a wire mesh demister 5 is fixedly connected to the upper half of the interior of the cylinder 1 , and the wire mesh demister 5 is located above the gas-liquid inlet pipe 9 .

[0039] Specifically, during the sewage treatment process, when pressurized gas and liquid enter the cylinder 1 from the gas-liquid inlet pipe 9 and fall into the separation tank 4, the flow rate of the gas and liquid is slowed down when passing through the bottom slope of the separation tank 4, so that the pressurized liquid in the gas and liquid is converted into a normal pressure state, and slowly flows into the bottom of the cylinder 1 through the gas-liquid through hole 3 by gravity.

[0040] At this time, part of the gas inside the cylinder 1 is discharged from the gas outlet pipe 6 through the gas-liquid through hole 3, and another part is discharged directly from the gas outlet pipe 6.

[0041] Furthermore, the gas to be discharged may contain liquid, so a wire mesh demister 5 is provided in the upper half of the cylinder 1 for interception. The wire mesh demister 5 can condense the smaller diameter mist liquid particles in the gas into droplets, which fall down under normal pressure.

[0042] Furthermore, when the liquid at the bottom of the cylinder 1 reaches a certain amount, the electric control valve 8 is controlled to open and the liquid is discharged downward.

[0043] During specific use, a liquid level sensor can be set on the inner wall at the bottom of the cylinder 1 to monitor the liquid level, and a controller can be set between the liquid level sensor and the electric control valve 8. When the liquid level sensor detects that the liquid level reaches the set threshold, the electric control valve 8 is controlled by the controller to open. The controller and its working principle are both existing common technologies and will not be elaborated here.

[0044] Taking into account that bubbles are easily generated when gas and liquid flow in the separation tank 4, especially when used in sewage treatment, when there are many bubbles, it will affect the efficiency of gas-liquid separation. In order to facilitate the treatment of bubbles, a plurality of separation tanks 4 are set. The plurality of separation tanks 4 are evenly distributed around the axis of the flow-shielding umbrella 2, and the distance between two adjacent separation tanks 4 is small, which is convenient for quick switching.

[0045] Meanwhile, the barrel 1 includes a first barrel section 10, a second barrel section 11 and a third barrel section 12 which are sequentially distributed from top to bottom. A U-shaped frame 15 is fixedly connected to the outer wall of the first barrel section 10, and the U-shaped frame 15 is fixedly connected to the third barrel section 12. The U-shaped frame 15 is arranged so that the first barrel section 10 and the third barrel section 12 form a whole, and the second barrel section 11 is rotatably arranged between the first barrel section 10 and the third barrel section 12. The gas-liquid inlet pipe 9 is located on the first barrel section 10, and the flow-shielding umbrella 2 is fixedly connected to the inner wall of the second barrel section 11. The flow-shielding umbrella 2 can rotate synchronously with the second barrel section 11, thereby realizing the switching between the separation slots 4, so that the multiple separation slots 4 can cooperate with the gas-liquid inlet pipe 9 in turn.

[0046] During specific use, rubber sealing rings may be provided at the connection between the first barrel section 10 and the second barrel section 11 and at the connection between the second barrel section 11 and the third barrel section 12 to improve the sealing performance and prevent the liquid from leaking out.

[0047] The outside of the barrel 1 is provided with a driving assembly for driving the second barrel section 11 to rotate, and the driving assembly includes a gear ring 26, a second support plate 27, a motor 28 and a gear 29. The second support plate 27 is fixedly connected to the outer wall of the third barrel section 12, the motor 28 is fixedly connected to the second support plate 27, the gear 29 is fixedly connected to the driving shaft of the motor 28, the gear ring 26 is fixedly connected to the outer wall of the second barrel section 11, and the gear ring 26 is meshed with the gear 29. The motor 28 drives the gear 29 to rotate, and because the gear ring 26 is meshed with the gear 29, the gear ring 26 can drive the flow-shielding umbrella 2 to rotate through the second barrel section 11.

[0048] A trapezoidal box 13 is arranged above the flow-shielding umbrella 2, and a rubber pad 14 is fixedly connected to the bottom end of the trapezoidal box 13, and the rubber pad 14 has a certain elasticity. A first support plate 17 is fixedly connected to the inner wall of the cylinder 1, and an electric push rod 18 is fixedly connected to the lower surface of the first support plate 17. The trapezoidal box 13 is fixedly connected to the telescopic end of the electric push rod 18, and the trapezoidal box 13 is driven to move up and down by the electric push rod 18. When in use, the electric push rod 18 is waterproofed to avoid being affected by water vapor.

[0049] The top of the trapezoidal box 13 is penetrated with a first air groove 19, and the cylinder 1 is provided with a wind system 25, which includes structures such as an air pump and an air duct, and the air duct docked with the trapezoidal box 13 is made of soft material near the trapezoidal box 13, which does not affect the up and down movement of the trapezoidal box 13. The wind system 25 is a common existing technology and is not described here. The first air groove 19 cooperates with the wind system 25, and the wind system 25 can suck the gas inside the trapezoidal box 13 through the first air groove 19, and a first solenoid valve 20 is fixedly provided inside the first air groove 19.

[0050] In order to achieve the shielding of the bottom end of the gas-liquid through hole 3, so as to facilitate the upward bulging of the rubber pad 14, a baffle 16 is arranged below the flow shielding umbrella 2, the baffle 16 is fixedly connected to the inner wall of the third barrel section 12, the baffle 16 is attached to the lower surface of the flow shielding umbrella 2, and the rubber pad 14 cooperates with the baffle 16 and covers the upper and lower ends of the separation tank 4 respectively. When in use, a rubber block can be arranged on the upper surface of the baffle 16 to reduce the wear between the baffle 16 and the flow shielding umbrella 2, and at the same time improve the sealing effect of the gas-liquid through hole 3.

[0051] Specifically, start the motor 28, which drives the gear 29 to rotate. Since the gear ring 26 is meshed with the gear 29, the gear ring 26 drives the flow-shielding umbrella 2 to rotate through the second cylinder section 11, and adjusts one of the separation slots 4 to correspond to the gas-liquid inlet pipe 9 above and below. The pressurized gas and liquid enter the interior of the cylinder 1 from the gas-liquid inlet pipe 9 and fall into the separation slot 4 for gas-liquid separation.

[0052] After a certain period of time, more bubbles appear in the separation tank 4, and the motor 28 is started again to drive the flow-shielding umbrella 2 to rotate, so that the next separation tank 4 and the gas-liquid inlet pipe 9 correspond to each other up and down to perform gas-liquid separation. The above-mentioned separation tank 4 with bubbles is located between the trapezoidal box 13 and the gas-liquid inlet pipe 9. The bubbles are eliminated by themselves first. If there are many bubbles, it can also be directly rotated to the trapezoidal box 13. It can be adjusted according to specific usage.

[0053] As the flow-shielding umbrella 2 continues to rotate, when the separation tank 4 with bubbles corresponds to the trapezoidal box 13 up and down, the telescopic end of the electric push rod 18 is controlled to extend, driving the trapezoidal box 13 and the rubber pad 14 to move downward, directly crushing some larger bubbles; then the rubber pad 14 is attached to the flow-shielding umbrella 2 and covers the separation tank 4. At this time, the rubber pad 14 cooperates with the baffle 16 and covers the upper and lower ends of the separation tank 4 respectively. The first solenoid valve 20 is opened, and the wind system 25 sucks the gas inside the trapezoidal box 13 through the first gas groove 19, so that the rubber pad 14 bulges upward, and negative pressure is formed inside the separation tank 4, and the bubbles expand and burst, achieving the effect of bubble treatment.

[0054] By setting up structures such as the trapezoidal box 13, the rubber pad 14 and the baffle 16, the longitudinal movement of the rubber pad 14 can directly crush some larger bubbles. At the same time, the rubber pad 14 bulges upward, which can form a negative pressure inside the separation tank 4, causing the bubbles to expand and burst. The mechanical impact cooperates with the negative pressure to improve the effect of bubble treatment, thereby improving the use efficiency of the gas-liquid separator for water pollution treatment.

[0055] Furthermore, in the process of generating negative pressure, the gas or liquid inside the cylinder 1 will not be directly sucked outward, thereby avoiding interference with gas-liquid separation.

[0056] In addition, during the rotation of the flow-shielding umbrella 2, the baffle 16 can scrape off the liquid remaining on the lower surface of the flow-shielding umbrella 2 to ensure that the bottom end of the gas-liquid through hole 3 is unobstructed.

[0057] At the same time, a plurality of separation slots 4 are arranged on the flow-shielding umbrella 2, so that gas-liquid separation and bubble treatment can be performed simultaneously without stopping the machine, thereby improving the processing efficiency.

[0058] When the gas and liquid are transported to the separation tank 4 through the gas-liquid inlet pipe 9, the flow shielding umbrella 2 can also be controlled to rotate to a certain extent, so that the gas and liquid fall evenly at multiple positions of the separation tank 4, and are not prone to accumulation, thereby improving the efficiency of gas-liquid separation.

[0059] After the bubbles are processed, the motor 28 continues to start, driving the flow-shielding umbrella 2 to rotate, so as to process the bubbles in the next separation tank 4. At the same time, the wind system 25 is turned off to reset the rubber pad 14 and retract the telescopic end of the electric push rod 18.

[0060] Considering that when the pressurized gas and liquid enter the cylinder 1 from the gas-liquid inlet pipe 9, the gas and liquid have a certain pressure and therefore a certain flow rate, which will increase the possibility of bubble generation, in order to reduce the flow rate, an air bag 22 is fixedly connected to the inner wall of the gas-liquid inlet pipe 9 at one end inside the cylinder 1, and an air-filled chamber 21 is formed between the air bag 22 and the inner wall of the gas-liquid inlet pipe 9. A second air groove 23 is provided on the gas-liquid inlet pipe 9, the second air groove 23 is connected to the air-filled chamber 21, the second air groove 23 cooperates with the wind system 25, and a second solenoid valve 24 is fixedly installed inside the second air groove 23.

[0061] Specifically, before the gas and liquid enter the cylinder 1 from the gas-liquid inlet pipe 9, the second solenoid valve 24 is opened, and the wind system 25 delivers gas to the inside of the inflation chamber 21 through the second gas groove 23, so that the airbag 22 reaches a certain expansion state and is wavy (refer to Figure 4 ), and then close the second solenoid valve 24. When the gas and liquid are transported from the gas and liquid inlet pipe 9 to the inside of the cylinder 1, the air bag 22 can buffer the flow of gas and liquid, reduce the impact force of the gas and liquid, and the wavy structure can reduce the flow rate of gas and liquid, thereby reducing the generation of bubbles.

[0062] Furthermore, the airbag 22 is provided with a bending portion of the gas-liquid inlet pipe 9, so as to reduce the impact of the gas-liquid on the gas-liquid inlet pipe 9 at the position where the gas-liquid changes its flow direction, thereby extending the service life of the device.

[0063] In actual use, a pressure sensor or other sensor may be provided in the inflation chamber 21 to monitor the expansion state of the airbag 22. The pressure sensor and its working principle are both existing common technologies and will not be elaborated herein.

[0064] Furthermore, the expansion state of the airbag 22 can also control the instantaneous flow rate of gas and liquid. When the airbag 22 expands more, the instantaneous flow rate is small; when the airbag 22 expands less, the instantaneous flow rate is large. In addition, the closure of the gas-liquid inlet pipe 9 can also be controlled, which can be adjusted according to specific usage conditions.

[0065] Working principle: start the motor 28, the motor 28 drives the gear 29 to rotate, and since the gear ring 26 is meshed and connected with the gear 29, the gear ring 26 can drive the flow shielding umbrella 2 to rotate through the second barrel section 11, and adjust one of the separation slots 4 to correspond to the gas-liquid inlet pipe 9 up and down.

[0066] During the sewage treatment process, when the pressurized gas and liquid enter the cylinder 1 from the gas-liquid inlet pipe 9 and fall into the corresponding separation tank 4, the flow rate of the gas and liquid is slowed down when passing through the bottom slope of the separation tank 4, so that the pressurized liquid in the gas and liquid is converted to a normal pressure state, and slowly flows into the bottom of the cylinder 1 through the gas-liquid through hole 3. At this time, part of the gas inside the cylinder 1 is discharged from the gas outlet pipe 6 through the gas-liquid through hole 3, and another part is directly discharged from the gas outlet pipe 6. However, the gas to be discharged may also contain liquid, so a wire mesh demister 5 is provided in the upper half of the cylinder 1 to intercept it. The wire mesh demister 5 can condense the smaller diameter mist liquid particles in the gas into droplets, and convert them into a normal pressure state and fall. When the liquid at the bottom of the cylinder 1 reaches a certain amount, the electric control valve 8 is controlled to open and the liquid is discharged downward.

[0067] Before the gas and liquid enter the cylinder 1 from the gas-liquid inlet pipe 9, the second solenoid valve 24 is opened, and the gas is transported from the second gas groove 23 to the inside of the inflation chamber 21 through the wind system 25, so that the airbag 22 reaches a certain expansion state and is wavy (refer to Figure 4 ), and then close the second solenoid valve 24. When the gas and liquid are transported from the gas and liquid inlet pipe 9 to the inside of the cylinder 1, the air bag 22 can buffer the flow of gas and liquid, reduce the impact force of the gas and liquid, and the wavy structure can reduce the flow rate of gas and liquid, thereby reducing the generation of bubbles.

[0068] In addition, the airbag 22 is provided with a bending portion of the gas-liquid inlet pipe 9, so as to reduce the impact of the gas-liquid on the gas-liquid inlet pipe 9 at the position where the gas-liquid changes its flow direction, thereby extending the service life.

[0069] After a certain period of time, more bubbles appear in the separation tank 4, and the motor 28 is started. The motor 28 drives the gear 29 to rotate. Since the gear ring 26 is meshed with the gear 29, the gear ring 26 drives the flow shielding umbrella 2 to rotate through the second barrel section 11, so that the next separation tank 4 corresponds to the gas-liquid inlet pipe 9 up and down for gas-liquid separation. When the separation tank 4 with more bubbles is adjusted to correspond to the trapezoidal box 13 up and down, then the telescopic end of the electric push rod 18 is controlled to extend, driving the trapezoidal box 13 and the rubber pad 14 to move downward, and some larger bubbles are directly crushed; then the rubber pad 14 is attached to the flow shielding umbrella 2 and covers the separation tank 4. At this time, the rubber pad 14 cooperates with the baffle 16 and covers the upper and lower ends of the separation tank 4 respectively. The first solenoid valve 20 is opened, and the wind system 25 sucks the gas inside the trapezoidal box 13 through the first gas groove 19, so that the rubber pad 14 bulges upward, and a negative pressure is formed inside the separation tank 4, and the bubbles expand and burst, achieving the effect of bubble treatment.

[0070] Furthermore, in the process of generating negative pressure, the gas or liquid inside the cylinder 1 will not be directly sucked outward, thereby avoiding interference with gas-liquid separation.

[0071] After the bubbles are processed, the motor 28 continues to start, driving the flow shielding umbrella 2 to rotate, so as to process the bubbles in the next separation tank 4, and at the same time, the wind system 25 is turned off to reset the rubber pad 14.

Claims

1. A gas-liquid separator for water pollution treatment, comprising a cylinder (1), characterized in that: The upper half of the cylinder (1) is fixedly connected to a wire mesh demister (5), the lower half of the cylinder (1) is provided with a flow shielding umbrella (2), the middle section of the side wall of the cylinder (1) is fixedly connected to a gas-liquid inlet pipe (9) for conveying gas and liquid, and the gas-liquid inlet pipe (9) passes through the inner and outer surfaces of the cylinder (1) wall, and the top end of the cylinder (1) is connected to an air outlet pipe (6); The upper surface of the flow shielding umbrella (2) is provided with a separation groove (4) cooperating with the gas-liquid inlet pipe (9), the separation groove (4) is used to slow down the gas-liquid flow rate so that the liquid with pressure in the gas-liquid is converted into a normal pressure state, and the bottom end of the separation groove (4) is provided with a gas-liquid through hole (3) for the liquid to flow into the bottom of the cylinder (1); A trapezoidal box (13) is arranged above the flow-shielding umbrella (2), and a rubber pad (14) is fixedly connected to the bottom end of the trapezoidal box (13). A baffle (16) is arranged below the flow-shielding umbrella (2). The rubber pad (14) cooperates with the baffle (16) and covers the upper and lower ends of the separation tank (4) respectively. When suction is applied to the inside of the trapezoidal box (13), the rubber pad (14) bulges upward, so that negative pressure is formed inside the separation tank (4), and the bubbles expand and burst.

2. A gas-liquid separator for water pollution treatment according to claim 1, characterized in that: The cylinder body (1) comprises a first cylinder section (10), a second cylinder section (11) and a third cylinder section (12) which are sequentially arranged from top to bottom; a U-shaped frame (15) is fixedly connected to the outer wall of the first cylinder section (10), and the U-shaped frame (15) is fixedly connected to the third cylinder section (12); the second cylinder section (11) is rotatably arranged between the first cylinder section (10) and the third cylinder section (12); the flow-shielding umbrella (2) is fixedly connected to the inner wall of the second cylinder section (11); and the gas-liquid inlet pipe (9) is located on the first cylinder section (10).

3. A gas-liquid separator for water pollution treatment according to claim 2, characterized in that: The baffle plate (16) is fixedly connected to the inner wall of the third tube section (12), and the baffle plate (16) is attached to the lower surface of the flow-shielding umbrella (2).

4. The gas-liquid separator for water pollution treatment according to claim 1, characterized in that: The separation grooves (4) are arranged in plurality, and the plurality of separation grooves (4) are evenly distributed around the axis of the flow shielding umbrella (2).

5. The gas-liquid separator for water pollution treatment according to claim 1, characterized in that: A first support plate (17) is fixedly connected to the inner wall of the cylinder (1), an electric push rod (18) is fixedly connected to the lower surface of the first support plate (17), and the trapezoidal box (13) is fixedly connected to the telescopic end of the electric push rod (18).

6. A gas-liquid separator for water pollution treatment according to claim 5, characterized in that: A first air groove (19) is provided through the top of the trapezoidal box (13); a wind system (25) is provided on the cylinder (1); the first air groove (19) cooperates with the wind system (25); and a first solenoid valve (20) is fixedly provided inside the first air groove (19).

7. A gas-liquid separator for water pollution treatment according to claim 6, characterized in that: The gas-liquid inlet pipe (9) is L-shaped, and the bent portion of the gas-liquid inlet pipe (9) is located inside the cylinder (1). An air bag (22) is fixedly connected to the inner wall of one end of the gas-liquid inlet pipe (9) located inside the cylinder (1), and an air-filled chamber (21) is formed between the air bag (22) and the inner wall of the gas-liquid inlet pipe (9).

8. The gas-liquid separator for water pollution treatment according to claim 7, characterized in that: The gas-liquid inlet pipe (9) is provided with a second gas groove (23), the second gas groove (23) is communicated with the inflation chamber (21), the second gas groove (23) cooperates with the wind power system (25), and a second solenoid valve (24) is fixedly installed inside the second gas groove (23).

9. The gas-liquid separator for water pollution treatment according to claim 2, characterized in that: A driving assembly for driving the second barrel section (11) to rotate is arranged outside the barrel body (1), and the driving assembly comprises a gear ring (26), a second support plate (27), a motor (28) and a gear (29); the second support plate (27) is fixedly connected to the outer wall of the third barrel section (12); the motor (28) is fixedly connected to the second support plate (27); the gear (29) is fixedly connected to the driving shaft of the motor (28); the gear ring (26) is fixedly connected to the outer wall of the second barrel section (11); and the gear ring (26) is meshingly connected to the gear (29).

10. The gas-liquid separator for water pollution treatment according to claim 1, characterized in that: A drainage groove (7) is provided at the bottom end of the cylinder (1), and an electric control valve (8) is fixedly installed inside the drainage groove (7).

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