A swirl corrugated plate-wire mesh gas-liquid separator and method

Abstract

The present invention relates to a cyclone corrugated plate - wire mesh type gas - liquid separator and method, belonging to the technical field of gas - liquid separation. It includes a gas - liquid inlet, a separator cylinder body, corrugated plates, baffles, a wire mesh separator and a gas outlet. The gas - liquid inlet is arranged at the upper end of the separator cylinder body. At the lower part of the inner cavity of the separator cylinder body, there are successively connected from top to bottom a baffle, a wire mesh separator, and the upper end of the gas outlet. The lower end of the gas outlet extends out from the bottom of the separator cylinder body. Corrugated plates are arranged in the upper part of the inner cavity of the separator cylinder body. A number of corrugated plates are circumferentially and evenly arranged to form a corrugated plate group. The middle part of the corrugated plate group is higher than the edge. A sewage outlet is arranged at the bottom end of the separator cylinder body, and a sewage valve is arranged at the sewage outlet. An overflow port, an upper liquid level gauge port, and a lower liquid level gauge port are arranged on the separator cylinder body. In the present invention, the corrugated plates in the gas - liquid separator are spirally arranged. Through the blocking of the baffle, the monitoring of pressure and liquid level, and timely discharge, re - mixing is prevented, and the separation efficiency is improved.

Description

Technical Field

[0001] The invention relates to a gas-liquid separator and a method, belonging to the technical field of gas-liquid separation. Background Art

[0002] A gas-liquid separator is a separation device that separates liquid droplets from an airflow. Gas-liquid separators are widely used in petroleum, chemical, diesel hydrogenation tail gas recovery, natural gas extraction, storage and transportation, deep processing, flue gas waste heat utilization, wet desulfurization, wet dust removal, fermentation engineering and other process. The corrugated plate separator is widely used in actual industrial production due to its convenient production, high gas-liquid separation efficiency, and small footprint. The corrugated plate gas-liquid separator is usually composed of multiple corrugated plates, allowing the airflow with entrained droplets to flow in the tortuous channel formed by multiple corrugated plates. Due to the effect of inertia, the movement direction of the droplets is difficult to change with the change of the movement direction of the airflow. Finally, under the action of inertia, the droplets break away from the trajectory of the airflow and collide with the wall of the corrugated plate. As the droplets accumulate, a liquid film is eventually formed on the corrugated plate and discharged from the corrugated plate through the water collection channel. The wire mesh gas-liquid separator is a highly efficient gas-liquid separation device, which is mainly used to separate droplets with a diameter greater than 5μm in the gas. When the droplets pass through the filter layer with the airflow, the filter layer wire mesh grid hinders the airflow, causing the airflow to change its speed and direction of movement infinitely and bypass the wire mesh. These changes cause the droplets to produce inertial impact, gravity sedimentation, interception, Brownian diffusion, electrostatic attraction and other effects on the filter layer mesh, causing the droplet particles to aggregate and separate.

[0003] However, the corrugated plate gas-liquid separator also has its own disadvantages. When the number of corrugated plates reaches a certain level, the airflow may not be able to reach the corrugated plate channel far away from the airflow inlet, resulting in redundant structure; and the droplets separated from the airflow and captured by the wall can only flow out of the corrugated plate along the water collection channel under the action of their own gravity. If the position of the corrugated plate is not arranged reasonably, the droplets may not flow out of the corrugated plate in time and eventually separate from the liquid film or break under the action of the airflow, resulting in a decrease in separation efficiency; after the droplets are discharged along the wall, if the droplets gather in the water collection pool for a long time, the droplets may remix with the airflow after evaporation, resulting in a decrease in separation efficiency.

[0004] Therefore, it is urgent to propose a cyclonic corrugated plate-wire mesh gas-liquid separator and method to solve the above technical problems. Summary of the invention

[0005] To solve the above problems, a cyclone type corrugated plate-wire mesh type gas-liquid separator and method are provided. A brief summary of the invention is given below to provide a basic understanding of certain aspects of the invention. It should be understood that this summary is not an exhaustive summary of the invention. It is not intended to determine the key or important parts of the invention, nor is it intended to limit the scope of the invention.

[0006] Technical solution of the present invention:

[0007] A cyclone corrugated plate - wire mesh type gas - liquid separator and method, comprising a sewage discharge port, a manhole, a gas - liquid inlet, a pressure measuring hole in the inlet space, an upper level gauge port, a lower level gauge port, a separator cylinder, corrugated plates, baffles, a wire mesh separator, a pressure measuring hole in the separation space, a gas outlet and an overflow port. The upper end of the separator cylinder is provided with a gas - liquid inlet. The lower part of the inner cavity of the separator cylinder is sequentially connected with a baffle, a wire mesh separator, and the upper end of the gas outlet from top to bottom. The lower end of the gas outlet extends out from the bottom of the separator cylinder. The upper part of the inner cavity of the separator cylinder is provided with corrugated plates. A number of corrugated plates are circumferentially and evenly arranged to form a corrugated plate group. The middle of the corrugated plate group is higher than the edge. The bottom end of the separator cylinder is provided with a sewage discharge port, and a sewage discharge valve is arranged at the sewage discharge port. The lower part of the separator cylinder is sequentially provided with an overflow port, an upper level gauge port, and a lower level gauge port from top to bottom. An overflow valve is arranged at the overflow port. Level gauges are arranged at the upper level gauge port and the lower level gauge port. The sewage discharge port, the overflow port, the upper level gauge port, and the lower level gauge port are all communicated with a sump. A manhole and a pressure measuring hole in the separation space are arranged in the middle of the separator cylinder. The pressure measuring hole in the separation space is communicated with the separation space. An inlet space pressure measuring hole is arranged in the upper part of the separator cylinder. The inlet space pressure measuring hole is communicated with the inlet space. Pressure sensors are arranged at the pressure measuring hole in the separation space and the inlet space pressure measuring hole.

[0008] Preferably: It further includes a central fixing member. The central fixing member is cylindrical, and the upper part of the cylindrical shape has a hemispherical top cover. One end of the corrugated plate is connected to the central fixing member, and the other end of the corrugated plate is connected to the inner wall of the cylindrical separator cylinder. The vertical length of the central fixing member is greater than the vertical length of the corrugated plate. The tubular gas - liquid inlet, the separator cylinder, the central fixing member, the circular plate - shaped baffle, the wire mesh separator, and the tubular gas outlet are coaxially arranged.

[0009] Preferably: The angle between the corrugated plate and the horizontal direction is α = 5°, and the angle between the corrugated plate and the central axis is β = 20°.

[0010] Preferably: The corrugated plate includes a first fin, a main board, and a second fin. The main board is a serrated corrugated plate. The second fin with an upward opening is arranged at the wave crest of the serrated corrugated plate. The first fin with an upward opening is arranged at the wave trough of the serrated corrugated plate. Both the first fin and the second fin are L - shaped folded plates. A tortuous channel is formed between adjacent corrugated plates. The opening is parallel to the corresponding channel.

[0011] Preferably: A first air hole is machined on the upper side of the first wave trough on the front of the first wave node of one main board, and a second air hole is machined on the lower side of the first wave trough on the back of the first wave node of an adjacent main board.

[0012] Preferably: The bottom of the cylinder body includes an annular plate and a reducing pipe. The inner side of the annular plate is connected to the bottom of the reducing pipe, and the outer side of the annular plate is connected to the bottom end of the cylinder body. The reducing pipe, the annular plate, and the cylinder body are sequentially connected to form a collecting pool. The reducing pipe arranged in the lower part of the inner cavity of the separator cylinder body is a round pipe with a narrow upper part and a wide lower part. The upper part of the reducing pipe is connected to the middle part of the gas outlet, and the upper part of the reducing pipe is coaxially arranged with the gas outlet. The middle part of the inner cavity of the separator cylinder body is a separation space, and the upper part of the inner cavity of the separator cylinder body is an inlet space.

[0013] Preferably: The wire mesh separator is a round pipe with a wide upper part and a narrow lower part. Baffles and a gas outlet are respectively arranged at the upper and lower ends of the wire mesh separator. The diameter of the baffle is greater than or equal to the upper diameter of the wire mesh separator, the diameter of the baffle is greater than the upper diameter of the reducing pipe, and the diameter of the baffle is less than the lower diameter of the reducing pipe.

[0014] A cyclone corrugated plate - wire mesh gas - liquid separation method, using the cyclone corrugated plate - wire mesh gas - liquid separator described above, includes the following steps:

[0015] Includes the following steps:

[0016] Step 1: Input gas: The gas stream containing liquid droplets enters the device from the gas - liquid inlet, and the flow direction of the gas stream changes when it encounters the upper part of the central fixing part.

[0017] Step 2: Cyclone separation: The gas stream enters the corrugated plate for gas - liquid separation. When the gas stream passes through the zigzag channels formed between adjacent corrugated plates, the slope β causes the gas to become a swirling flow after passing through the corrugated plate. Under the action of centrifugal force, the liquid droplets deviate from the movement track of the gas stream and collide with the corrugated plate to be separated, and under the combined action of adhesion and gravity, they converge along the slopes of the first fin and the second fin of the corrugated plate to the wall surface of the inner cavity of the separator cylinder body.

[0018] Step 3: Gas - liquid discharge: The liquid droplets flow out of the corrugated plate, and the liquid droplets continue to converge along the middle wall surface of the separator cylinder body under the action of gravity and enter the collecting pool.

[0019] The gas passes through the corrugated plate for filtration and then enters the middle part of the separator cylinder body. Through the gap between the baffle and the separator cylinder body, the gas passes through the wire mesh separator for filtration, and finally, the dried gas that has undergone two - stage liquid - droplet separation treatment is obtained through the gas outlet.

[0020] Preferably: Pressure is monitored in real - time using the pressure - measuring holes in the inlet space and the separation space to prevent excessive pressure from affecting the gas - liquid flow direction in Step 3.

[0021] Preferably, the drain valve at the drain outlet and the overflow valve at the overflow outlet can both be check valves. When the drain outlet is blocked or the discharge is not timely, the liquid level gauges at the upper liquid level gauge port and the lower liquid level gauge port are used to observe the liquid level situation in real time, which is convenient for discovering problems and timely maintenance. When the upper liquid level gauge port fails, the liquid can be discharged in time through the overflow outlet. All possible problems in the use process are comprehensively considered, and a reasonable design layout is carried out to improve the separation efficiency and facilitate maintenance and repair.

[0022] The present invention has the following beneficial effects:

[0023] The corrugated plates of the present invention are reasonably arranged and ingeniously structured. The corrugated plates in the gas-liquid separator are arranged in a spiral manner, so that the separated liquid droplets can be discharged from the corrugated plate channels in time under the action of gravity and inertia. The setting of the corrugated plates can effectively reduce the pressure drop of the gas flow, thereby achieving the purpose of reducing energy consumption, and is conducive to the captured liquid droplets flowing towards the cylinder wall and converging at the bottom;

[0024] The gas-liquid separation efficiency of the present invention is high;

[0025] The present invention adopts serrated / zigzag corrugated plates, which is beneficial to quickly separate gases and liquid droplets with large density differences by inertia. The process is simple and beneficial to cost control;

[0026] The present invention comprehensively considers all possible problems in the use process, conducts a reasonable design layout, improves the separation efficiency, and is convenient for maintenance and repair;

[0027] The present invention prevents remixing and improves the separation efficiency through the blocking of the baffle, the monitoring of pressure and liquid level, and timely discharge. Description of the Drawings

[0028] Figure 1 is a schematic diagram of the internal structure of a cyclone corrugated plate-wire mesh type gas-liquid separator;

[0029] Figure 2 is a schematic diagram of the structure of the corrugated plate;

[0030] Figure 3 is a structural diagram of the second air hole;

[0031] Figure 4 is a structural diagram of the corrugated plate group;

[0032] Figure 5 is a schematic diagram of the installation of the corrugated plate;

[0033] Figure 6 is a front view of a cyclone corrugated plate-wire mesh type gas-liquid separator.

[0034] In the figure: 1 - sewage outlet, 2 - manhole, 3 - gas-liquid inlet, 4 - pressure measuring hole for inlet space, 5 - upper liquid level gauge port, 6 - lower liquid level gauge port, 7 - separator cylinder, 8 - central fixing part, 9 - corrugated plate, 10 - baffle plate, 11 - wire mesh separator, 12 - pressure measuring hole for separation space, 13 - sump, 14 - gas outlet, 15 - overflow port, 71 - annular plate, 72 - reducer pipe, 91 - first fin, 92 - main board, 93 - second fin. Specific implementation manner

[0035] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be described below through specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0036] Specific implementation manner one: In combination with Figure 1-6 This specific implementation manner will be described. A cyclone corrugated plate - wire mesh type gas-liquid separator in this specific implementation manner includes a sewage outlet 1, a manhole 2, a gas-liquid inlet 3, a pressure measuring hole 4 for the inlet space, an upper liquid level gauge port 5, a lower liquid level gauge port 6, a separator cylinder 7, a corrugated plate 9, a baffle plate 10, a wire mesh separator 11, a pressure measuring hole 12 for the separation space, a gas outlet 14 and an overflow port 15. A gas-liquid inlet 3 is provided at the upper end of the separator cylinder 7. Below the inner cavity of the separator cylinder 7, there are successively connected from top to bottom a baffle plate 10, a wire mesh separator 11, and the upper end of the gas outlet 14. The lower end of the gas outlet 14 extends out from the bottom of the separator cylinder 7. A corrugated plate 9 is provided in the upper part of the inner cavity of the separator cylinder 7. A number of corrugated plates 9 are circumferentially and evenly arranged to form a corrugated plate group. The middle of the corrugated plate group is higher than the edge. A sewage outlet 1 is provided at the bottom end of the separator cylinder 7, and a sewage valve is provided at the sewage outlet 1. An overflow port 15, an upper liquid level gauge port 5, and a lower liquid level gauge port 6 are successively provided from top to bottom in the lower part of the separator cylinder 7. An overflow valve is provided at the overflow port 15, and liquid level gauges are provided at both the upper liquid level gauge port 5 and the lower liquid level gauge port 6. The sewage outlet 1, the overflow port 15, the upper liquid level gauge port 5, and the lower liquid level gauge port 6 are all communicated with the sump 13. A manhole 2 and a pressure measuring hole 12 for the separation space are provided in the middle of the separator cylinder 7. The pressure measuring hole 12 for the separation space is communicated with the separation space. A pressure measuring hole 4 for the inlet space is provided in the upper part of the separator cylinder 7. The pressure measuring hole 4 for the inlet space is communicated with the inlet space. Pressure sensors are provided at both the pressure measuring hole 12 for the separation space and the pressure measuring hole 4 for the inlet space; the upper liquid level gauge port 5 is used to install a liquid level gauge to detect the liquid level height and prevent the liquid level height from being too high and affecting the separation efficiency of the equipment;

[0037] It also includes a central fixing member 8. The central fixing member 8 is cylindrical, and the upper part of the cylinder has a hemispherical top cover, which is beneficial to the uniform dispersion of gas and liquid and prevents the accumulation of liquid droplets. One end of the corrugated plate 9 is connected to the central fixing member 8, and the other end of the corrugated plate 9 is connected to the inner wall of the cylindrical separator body 7. The vertical length of the central fixing member 8 is greater than the vertical length of the corrugated plate 9. The gas-liquid inlet 3 in the shape of a circular tube, the separator body 7, the central fixing member 8, the baffle 10 in the shape of a circular plate, the wire mesh separator 11, and the gas outlet 14 in the shape of a circular tube are coaxially arranged;

[0038] The included angle between the corrugated plate 9 and the horizontal direction is α = 5°, and the included angle between the corrugated plate 9 and the central axis is β = 20°, forming a corrugated plate group with a high middle and a low edge. The inclined arrangement is beneficial to increasing the collision wall surface and improving the utilization rate of each corrugated plate 9, thereby reducing the number of corrugated plates used; In order to enable the liquid droplets to be discharged from the corrugated plate channel in time after being captured, the corrugated plates in the gas-liquid separator of the present invention are arranged in a spiral manner, so that the separated liquid droplets are discharged from the corrugated plate channel in time under the action of gravity and inertia. The gas will have an additional bend on the wall surface of the separator body 7, which can further improve the separation efficiency; Through calculation, it is found that when the airflow direction forms a certain angle with the blade corrugated plate direction, while ensuring the separation efficiency, the pressure drop of the airflow can be effectively reduced, thereby achieving the purpose of reducing energy consumption. Each wave node forms an included angle of 5° with the horizontal direction, and the connection between the wave node and the central cylinder is higher than the connection between the wave node and the cylinder body, which is more conducive to the captured liquid droplets flowing to the cylinder wall and converging at the bottom;

[0039] The corrugated plate 9 includes a first fin 91, a main board 92, and a second fin 93. The main board 92 is a serrated corrugated plate. The second fin 93 with an upward opening is arranged at the wave crest of the serrated corrugated plate, and the first fin 91 with an upward opening is arranged at the wave trough of the serrated corrugated plate. Both the first fin 91 and the second fin 93 are L-shaped folded plates. A zigzag channel is formed between adjacent corrugated plates 9, and the opening is parallel to the corresponding channel. The present invention adopts the serrated / folded corrugated plate 9, which is beneficial to quickly separating gas and liquid with a large density difference by inertia. The process is simple and beneficial to cost control;

[0040] A first air hole 921 is processed on the upper side of the first wave trough on the front side of the first wave node of a main board 92, and a second air hole 922 is processed on the lower side of the first wave trough on the back side of the first wave node of an adjacent main board 92, so that the first air hole 921 and the second air hole 922 are arranged alternately. Both the first air hole 921 and the second air hole 922 are through holes; Through calculation, it is found that particles will gather at the first wave node of the corrugated plate to form a liquid film, and the generation of the liquid film will reduce the separation efficiency of the corrugated plate. Therefore, holes are opened on the upper and lower plates of the first wave node, and the liquid film will flow to the back side of the corrugated plate under the action of the gas phase, thereby reducing the liquid film thickness and improving the separation efficiency. While ensuring that the serrated / folded corrugated plate 9 is suitable for large flow rates and high flow velocities, it also solves the problem of accumulation and blockage caused by flow disorder;

[0041] The bottom of the cylinder body 7 includes an annular plate 71 and a reduced-diameter pipe 72. The inner side of the annular plate 71 is connected to the bottom of the reduced-diameter pipe 72, and the outer side of the annular plate 71 is connected to the bottom end of the cylinder body 7. The reduced-diameter pipe 72, the annular plate 71, and the cylinder body 7 are sequentially connected to form a sump 13. The reduced-diameter pipe 72 disposed in the lower part of the inner cavity of the separator cylinder body 7 is a circular pipe with a narrow upper part and a wide lower part. The upper part of the reduced-diameter pipe 72 is connected to the middle part of the gas outlet 14, and the upper part of the reduced-diameter pipe 72 is coaxially arranged with the gas outlet 14. The middle part (between the corrugated plate and the baffle) of the inner cavity of the separator cylinder body 7 is a separation space, and the upper part (between the corrugated plate and the gas-liquid inlet) of the inner cavity of the separator cylinder body 7 is an inlet space. The design of the reduced-diameter pipe 72 is conducive to the attachment and confluence of liquid droplets;

[0042] The wire mesh separator 11 is a reduced-diameter pipe-shaped circular pipe with a wide upper part and a narrow lower part. Baffles 10 and a gas outlet 14 are respectively arranged at the upper and lower ends of the wire mesh separator 11. The diameter of the baffle 10 is greater than or equal to the upper diameter of the wire mesh separator 11, the diameter of the baffle 10 is greater than the upper diameter of the reduced-diameter pipe 72, and the diameter of the baffle 10 is less than the lower diameter of the reduced-diameter pipe 72. Adding a wire mesh separator 11 around the gas flow outlet further improves the separation efficiency;

[0043] Specific Embodiment 2: Combining Figure 1-6 To describe this embodiment, a cyclone corrugated plate-wire mesh type gas-liquid separation method of this embodiment uses the cyclone corrugated plate-wire mesh type gas-liquid separator described above, including a sewage discharge port 1, a manhole 2, a gas-liquid inlet 3, an inlet space pressure measuring hole 4, an upper liquid level gauge port 5, a lower liquid level gauge port 6, a separator cylinder body 7, a corrugated plate 9, a baffle 10, a wire mesh separator 11, a separation space pressure measuring hole 12, a gas outlet 14, and an overflow port 15. A gas-liquid inlet 3 is arranged at the upper end of the separator cylinder body 7. In the lower part of the inner cavity of the separator cylinder body 7, a baffle 10, a wire mesh separator 11, and the upper end of the gas outlet 14 are sequentially connected from top to bottom. The lower end of the gas outlet 14 extends out from the bottom of the separator cylinder body 7. A corrugated plate 9 is arranged in the upper part of the inner cavity of the separator cylinder body 7. A number of corrugated plates 9 are circumferentially and evenly arranged to form a corrugated plate group. The middle part of the corrugated plate group is higher than the edge. A sewage discharge port 1 is arranged at the bottom end of the separator cylinder body 7. An overflow port 15, an upper liquid level gauge port 5, and a lower liquid level gauge port 6 are sequentially arranged in the lower part of the separator cylinder body 7 from top to bottom. A manhole 2 and a separation space pressure measuring hole 12 are arranged in the middle part of the separator cylinder body 7. An inlet space pressure measuring hole 4 is arranged in the upper part of the separator cylinder body 7. A sewage discharge valve is arranged at the sewage discharge port 1, an overflow valve is arranged at the overflow port 15, liquid level gauges are arranged at both the upper liquid level gauge port 5 and the lower liquid level gauge port 6. The sewage discharge port 1, the overflow port 15, the upper liquid level gauge port 5, and the lower liquid level gauge port 6 are all communicated with the sump 13. The separation space pressure measuring hole 12 is communicated with the separation space, and the inlet space pressure measuring hole 4 is communicated with the inlet space. Pressure sensors are arranged at both the separation space pressure measuring hole 12 and the inlet space pressure measuring hole 4;

[0044] It further includes a central fixing member 8. The central fixing member 8 is cylindrical, and the upper part of the cylinder has a hemispherical top cover. One end of the corrugated plate 9 is connected to the central fixing member 8, and the other end of the corrugated plate 9 is connected to the inner wall of the cylindrical separator cylinder 7. The gas-liquid inlet 3 in the shape of a circular tube, the separator cylinder 7, the central fixing member 8, the baffle 10 in the shape of a circular plate, the wire mesh separator 11, and the gas outlet 14 in the shape of a circular tube are coaxially arranged;

[0045] The included angle between the corrugated plate 9 and the horizontal direction is α = 5°, and the included angle between the corrugated plate 9 and the central axis is β = 20°;

[0046] The corrugated plate 9 includes a first fin 91, a main plate 92, and a second fin 93. The main plate 92 is a serrated corrugated plate. The second fin 93 is provided at the wave crest of the serrated corrugated plate, and the first fin 91 is provided at the wave trough of the serrated corrugated plate. Both the first fin 91 and the second fin 93 are L-shaped folded plates;

[0047] A first air hole 921 is machined on the front of the first wave node of one main plate 92, and a second air hole 922 is machined on the back of the first wave node of another adjacent main plate 92;

[0048] The bottom of the cylinder 7 includes an annular plate 71 and a reduced-diameter pipe 72. The inner side of the annular plate 71 is connected to the bottom of the reduced-diameter pipe 72, and the outer side of the annular plate 71 is connected to the bottom end of the cylinder 7. The reduced-diameter pipe 72, the annular plate 71, and the cylinder 7 are sequentially connected to form a sump 13; The reduced-diameter pipe 72 provided in the lower part of the inner cavity of the separator cylinder 7 is a circular pipe that is narrower at the top and wider at the bottom. The upper part of the reduced-diameter pipe 72 is connected to the middle part of the gas outlet 14, and the upper part of the reduced-diameter pipe 72 is coaxially arranged with the gas outlet 14. The middle part of the inner cavity of the separator cylinder 7 is a separation space, and the upper part of the inner cavity of the separator cylinder 7 is an inlet space;

[0049] The wire mesh separator 11 is a circular pipe that is wider at the top and narrower at the bottom. Baffles 10 and a gas outlet 14 are respectively provided at the upper and lower ends of the wire mesh separator 11. The diameter of the baffle 10 is greater than or equal to the upper diameter of the wire mesh separator 11, the diameter of the baffle 10 is greater than the upper diameter of the reduced-diameter pipe 72, and the diameter of the baffle 10 is less than the lower diameter of the reduced-diameter pipe 72;

[0050] The method includes the following steps:

[0051] Step 1: Input air flow: The air flow containing liquid droplets enters the device from the gas-liquid inlet 3, and the air flow changes its direction when it encounters the upper part of the central fixing member 8;

[0052] Step 2: Cyclone separation: When the airflow passes through the tortuous channels formed between adjacent corrugated plates 9, due to inertia, it is difficult for the movement direction of the droplets to change with the change of the airflow movement direction. The slope β causes the gas to become a swirling flow after passing through the corrugated plate 9. Under the action of centrifugal force, the droplets deviate from the airflow movement trajectory and collide with the wall surface of the corrugated plate 9 (including the main board and the fin wall surface) and are separated. Under the combined action of adhesion and gravity, they converge along the slope α of the first fin 91 and the second fin 93 of the corrugated plate 9 to the wall surface of the inner cavity of the separator cylinder 7. The setting of the slope α not only solves the problem of water accumulation on the fins during gas-liquid separation from top to bottom, but also prevents the separated gas and liquid from remixing due to convection, greatly improving the separation efficiency;

[0053] Step 3: Gas-liquid discharge: The droplets flow out of the corrugated plate and continue to converge into the sump 13 along the middle wall surface of the separator cylinder 7 under the action of gravity, and finally are discharged from the separator through the sewage outlet 1. During the falling process of the water droplets, surface tension will make the water droplets closely adhere to the wall surface, forming a stable contact interface, so that the water droplets no longer mix with the airflow. At the same time, the combined action of gravity and the airflow formed by the downward dry gas on the water droplets on the wall surface speeds up their falling speed and improves the separation efficiency; The dry gas enters the middle part of the separator cylinder 7 after being filtered by the corrugated plate 9, and passes through the narrow gap between the baffle 10 and the separator cylinder 7, which increases the airflow speed and impacts the droplets on the wire mesh separator 11, enabling them to be quickly separated from the wire mesh separator 11. At the same time, the design of the wire mesh separator 11 also prevents droplet accumulation, which is beneficial for the droplets to flow into the sump 13 under the action of gravity. The gas is filtered by the wire mesh separator 11 and finally dry gas that has undergone two droplet separation processes is obtained through the gas outlet 14; The baffle 10 not only divides the inside of the separator cylinder 7 into a separation space and a sump 13, preventing the collected droplets in the sump 13 from evaporating and then entering the dry gas channel 7 again to affect the separation efficiency, but also changes the gas flow direction. At the same time, a baffle 10 is added at the upper end of the gas outlet 14 to prevent droplets from dripping and affecting the separation efficiency;

[0054] The inlet space pressure measuring hole 4 and the separation space pressure measuring hole 12 are used to monitor the pressure in real time to prevent excessive pressure from affecting the gas-liquid flow direction in Step 3;

[0055] The sewage valve at the sewage outlet 1 and the overflow valve at the overflow port 15 can both adopt one-way valves. When the sewage outlet 1 is blocked or the discharge is not timely, the liquid level gauges at the upper liquid level gauge port 5 and the lower liquid level gauge port 6 are used to observe the liquid level situation in real time, which is convenient for discovering problems and timely maintenance. When the upper liquid level gauge port 5 fails, the liquid can be discharged in time through the overflow port 15. All possible problems in the use process are comprehensively considered, and a reasonable design layout is carried out to improve the separation efficiency and facilitate maintenance and repair;

[0056] The droplet separation efficiency is calculated by the ratio of the droplet mass at the inlet and outlet, and the specific formula is as follows:

[0057]

[0058] In the formula: η is the separation efficiency of the separator, %; m e is the mass flow rate of the droplets at the inlet; m l is the mass flow rate of the droplets at the outlet; w i η i is the separation efficiency of the droplets with a certain diameter.

[0059] It should be noted that in the above embodiments, as long as the technical solutions are not contradictory, they can be arranged and combined. Those skilled in the art can exhaust all possibilities based on the mathematical knowledge of permutations and combinations. Therefore, the present invention will not describe the technical solutions after permutation and combination one by one, but it should be understood that the technical solutions after permutation and combination have been disclosed by the present invention.

[0060] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cyclone corrugated plate - wire mesh gas - liquid separator, characterized in that: It includes a sewage outlet (1), a manhole (2), a gas-liquid inlet (3), a pressure measuring hole for the inlet space (4), an upper liquid level gauge port (5), a lower liquid level gauge port (6), a separator cylinder (7), corrugated plates (9), baffles (10), wire mesh separators (11), a pressure measuring hole for the separation space (12), a gas outlet (14) and an overflow port (15). A gas-liquid inlet (3) is provided at the upper end of the separator cylinder (7). At the lower part of the inner cavity of the separator cylinder (7), there are successively connected from top to bottom a baffle (10), a wire mesh separator (11), and the upper end of the gas outlet (14). The lower end of the gas outlet (14) extends out from the bottom of the separator cylinder (7). Corrugated plates (9) are provided at the upper part of the inner cavity of the separator cylinder (7). A number of corrugated plates (9) are circumferentially and evenly arranged to form a corrugated plate group. The middle of the corrugated plate group is higher than the edge. The bottom end of the separator cylinder (7) is provided with a sewage outlet (1). The lower part of the separator cylinder (7) is successively provided with an overflow port (15), an upper liquid level gauge port (5), and a lower liquid level gauge port (6) from top to bottom. A manhole (2) and a pressure measuring hole for the separation space (12) are provided in the middle of the separator cylinder (7). A pressure measuring hole for the inlet space (4) is provided at the upper part of the separator cylinder (7); It further includes a central fixing member (8). The central fixing member (8) is cylindrical. The upper part of the cylinder has a hemispherical top cover. One end of the corrugated plate (9) is connected to the central fixing member (8), and the other end of the corrugated plate (9) is connected to the inner wall of the cylindrical separator cylinder (7). The tubular gas-liquid inlet (3), the separator cylinder (7), the central fixing member (8), the circular plate-shaped baffle (10), the wire mesh separator (11), and the tubular gas outlet (14) are coaxially arranged; The included angle between the corrugated plate (9) and the horizontal direction is α = 5°, and the included angle between the corrugated plate (9) and the central axis is β = 20°; The corrugated plate (9) includes a first fin (91), a main board (92), and a second fin (93). The main board (92) is a serrated corrugated plate. Second fins (93) are provided at the wave crests of the serrated corrugated plate, and first fins (91) are provided at the wave troughs of the serrated corrugated plate. Both the first fin (91) and the second fin (93) are L-shaped folded plates; A first air hole (921) is machined on the front surface of the first wave node of one main board (92), and a second air hole (922) is machined on the back surface of the first wave node of an adjacent main board (92).

2. The swirl corrugated plate-wire mesh type gas-liquid separator according to claim 1, wherein: The bottom of the cylinder body (7) includes an annular plate (71) and a reducer pipe (72). The inner side of the annular plate (71) is connected to the bottom of the reducer pipe (72), and the outer side of the annular plate (71) is connected to the bottom end of the cylinder body (7). The reducer pipe (72), the annular plate (71), and the cylinder body (7) are sequentially connected to form a sump (13). The reducer pipe (72) disposed at the lower part of the inner cavity of the separator cylinder body (7) is a circular pipe with a narrow upper part and a wide lower part. The upper part of the reducer pipe (72) is connected to the middle part of the gas outlet (14), and the upper part of the reducer pipe (72) is coaxially arranged with the gas outlet (14). The middle part of the inner cavity of the separator cylinder body (7) is a separation space, and the upper part of the inner cavity of the separator cylinder body (7) is an inlet space.

3. The swirl corrugated plate-wire mesh type gas-liquid separator according to claim 2, wherein: The wire mesh separator (11) is a circular pipe with a wide upper part and a narrow lower part. Baffles (10) and a gas outlet (14) are respectively arranged at the upper and lower ends of the wire mesh separator (11). The diameter of the baffle (10) is greater than or equal to the upper diameter of the wire mesh separator (11), the diameter of the baffle (10) is greater than the upper diameter of the reducer pipe (72), and the diameter of the baffle (10) is less than the lower diameter of the reducer pipe (72).

4. A cyclone corrugated plate-wire mesh gas-liquid separation method, characterized in that: Using a cyclone corrugated plate - wire mesh type gas - liquid separator according to any one of claims 1 - 3, comprising the following steps: Step 1: Input air flow: The air flow containing liquid droplets enters the device from the gas - liquid inlet (3). Step 2: Cyclone separation: The air flow enters the corrugated plate (9) for gas - liquid separation. When the air flow passes through the zigzag channels formed between the corrugated plates (9), the slope β causes the gas to become a swirling flow after passing through the corrugated plate (9). Under the action of centrifugal force, the liquid droplets deviate from the movement trajectory of the air flow and collide with the corrugated plate (9), and then converge along the slopes of the first fins (91) and the second fins (93) of the corrugated plate (9) to the wall surface of the inner cavity of the separator cylinder body (7). Step 3: Gas - liquid discharge: The liquid droplets converge along the wall surface of the separator cylinder body (7) to the sump (13) under the action of gravity. The gas enters the middle part of the separator cylinder body (7) after being filtered by the corrugated plate (9), passes through the gap between the baffle (10) and the separator cylinder body (7), the gas is filtered by the wire mesh separator (11), and finally dry gas is obtained through the gas outlet (14).

5. A cyclone corrugated plate-wire mesh type gas-liquid separation method according to claim 4, characterized in that: The inlet space pressure measuring hole (4) and the separation space pressure measuring hole (12) are used to monitor the pressure in real - time to prevent excessive pressure from affecting the gas - liquid flow direction in Step 3.

6. A cyclone corrugated plate - wire mesh gas - liquid separation method according to claim 5, characterized in that: The sewage outlet (1) and the overflow port (15) adopt check valves. When the sewage outlet (1) is blocked or the discharge is not timely, the upper liquid level gauge port (5) and the lower liquid level gauge port (6) are used to observe the liquid level situation in real - time, which is convenient for discovering problems and timely maintenance. When the upper liquid level gauge port (5) fails, the liquid can be discharged in time through the overflow port (15).

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