A gas-liquid separation coalescer and its adjustment method and backwashing method

Abstract

The invention discloses a gas-liquid separation coalescer and a regulating method and a backwashing method, and relates to the technical field of gas-liquid separators. The gas-liquid separation coalescer comprises a housing, a dust removal filter element and a coalescing filter element; a first cavity and a second cavity are arranged in the housing, and the first cavity is in an inverted cone shape; a partition plate is arranged at the junction of the first cavity and the second cavity; the dust removal filter element is arranged on the lower surface of the partition plate, and the coalescing filter element is arranged above the partition plate. A lifting plate is arranged at the bottom end of the coalescing filter element, and the lifting plate is provided with a water-permeable hole; the lifting plate can move longitudinally to realize the storage and discharge of coalescing liquid; when the coalescing liquid is discharged, the impurity particles on the dust removal filter element can be backwashed. The gas-liquid mixture forms a vortex in the first cavity to remove large-volume impurity particles, and then flows through the dust removal filter element to remove small and medium-volume impurity particles, so as to avoid impurity particles blocking the coalescing filter element. The peripheral filter element can rotate, and the relatively clean side of the peripheral filter element is directed to the outside to perform filtering operations, thereby increasing the service life of the peripheral filter element.

Description

Technical Field

[0001] The invention relates to the technical field of gas-liquid separators, and in particular to a gas-liquid separation coalescer, a regulating method and a backwashing method. Background Art

[0002] Gas-liquid separators include blade type, cyclone type and filter element type, which are used to separate gas-liquid mixture into gas products and liquid products.

[0003] The cyclone gas-liquid separator uses the principle of centrifugal force to throw out the heavier water; the filter element gas-liquid separator uses the principle of coalescence. When the coalescence filter element filters the gas-liquid mixture, it can coalesce the tiny, free water molecules in it and gather them into water droplets on the surface, thereby removing the water.

[0004] In traditional technology, the gas-liquid mixture will be mixed with impurity particles (such as dust, raw material residues, preparation product residues, etc.). The impurity particles will adhere to the surface of the coalescing filter element and cause blockage, thereby reducing the air permeability of the coalescing filter element, and further causing a sudden increase in the air pressure in the inner cavity of the coalescing filter element, causing the coalescing filter element to be overloaded and damaged (such as tearing) due to tensile overload. Summary of the invention

[0005] In order to overcome the problem in the above background technology that "impurity particles in the gas-liquid mixture clog the coalescing filter element, causing the coalescing filter element to be damaged by tensile overload", the present invention provides a gas-liquid separation coalescer, an adjustment method and a backwashing method.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: A gas-liquid separation coalescer comprises a shell, a dust removal filter element and a coalescing filter element; a first cavity and a second cavity placed above the first cavity are arranged in the shell, and the first cavity is in an inverted cone shape; a feed pipe connected to the first cavity and an exhaust pipe connected to the second cavity are arranged on the side wall of the shell; the feed pipe is arranged tangent to the outer edge of the top of the first cavity; a partition plate is arranged at the junction of the first cavity and the second cavity; the dust removal filter element is arranged at the lower surface of the partition plate, and the coalescing filter element is arranged above the partition plate ; The dust removal filter element and the coalescing filter element are arranged in an open state opposite to each other, and the partition plate is provided with a first through hole for connecting the inner cavity of the dust removal filter element and the inner cavity of the coalescing filter element; the bottom end of the coalescing filter element is provided with a lifting plate, and the lifting plate is provided with a water-permeable hole; the lifting plate is provided with a supporting cylinder for connecting and supporting the coalescing filter element; the lifting plate can move longitudinally, so as to realize crimping and separation with the partition plate, and is respectively used for the storage and discharge of coalescing liquid; the coalescing liquid can backwash the impurity particles on the dust removal filter element when discharged through the first through hole.

[0007] As a further optimization solution of the present invention, the lifting plate is connected to the lifting structure.

[0008] As a further optimization scheme of the present invention, the lifting structure is a sling and a winch; the winch is installed on the upper surface of the top plate at the top of the shell, and the top plate is provided with a threading hole for routing the sling; the top end of the sling is connected to the winch, and the bottom end is connected to the lifting plate.

[0009] As a further optimization solution of the present invention, the lifting structure is a vertical pneumatic push rod; the fixing seat of the pneumatic push rod is connected to the inner wall of the outer shell, and the output shaft of the pneumatic push rod is connected to the lifting plate.

[0010] As a further optimization scheme of the present invention, it also includes a water collecting bin, which is installed at the bottom end of the shell, and the inner cavity of the water collecting bin is connected to the bottom end of the first cavity.

[0011] As a further optimization scheme of the present invention, the dust removal filter element, the coalescing filter element and the first through hole are respectively provided with a plurality of them, and the dust removal filter element, the coalescing filter element and the first through hole are arranged in one-to-one correspondence; the corresponding inner cavities of the coalescing filter element and the inner cavities of the dust removal filter element are connected through the first through holes.

[0012] As a further optimization scheme of the present invention, the dust removal filter element includes a central filter element installed at the center position of the partition plate and a peripheral filter element installed at the periphery of the central filter element; the peripheral filter element can rotate so that the impurity accumulation area points to the central filter element.

[0013] As a further optimization scheme of the present invention, it also includes a driving component for driving the peripheral filter element to rotate, and the driving component is installed at the edge position of the bottom surface of the partition plate; the driving component includes a first bearing, a first gear ring, a second gear ring, a second bearing and a driving motor; the first bearing includes a first inner ring and a first outer ring that can rotate relative to each other, the first inner ring is sleeved on the top of the outer side wall of the peripheral filter element and fixedly connected, and the first outer ring is fixedly connected to the bottom surface of the partition plate; the first gear ring is sleeved on the outer side wall of the peripheral filter element and fixedly connected, the outer side wall of the first gear ring is meshed with the inner side wall of the second gear ring through a tooth structure, and the outer side wall of the second gear ring is connected to the outer shell through the second bearing; the bottom surface of the second gear ring is provided with a bevel gear structure, and the output shaft end of the driving motor is provided with a driving gear, and the driving gear is a bevel gear, and the driving gear is meshed with the bevel gear structure.

[0014] A method for adjusting a gas-liquid separation coalescer, that is, the steps of adjusting the gas-liquid separation coalescer include: S1, stopping the injection of the gas-liquid mixture; S2, starting the drive motor, driving the peripheral filter element to rotate 180 degrees through the second gear ring and the first gear ring, so that the impurity accumulation area points to the central filter element, and then turning off the drive motor; S3, starting the injection of the gas-liquid mixture.

[0015] A backwashing method for a gas-liquid separation coalescer, that is, the steps of backwashing the gas-liquid separation coalescer include: A1, stopping the injection of the gas-liquid mixture; A2, starting the driving component to drive the peripheral filter element to rotate; A3. Start the lifting structure to lift the lifting plate that was originally pressed on the partition plate, so that the coalescing liquid flows through the water permeable hole and the first through hole and then enters the inner cavity of the dust filter element; during the rotation of the peripheral filter element, the internal coalescing liquid can be thrown out and the foreign particles can be removed at the same time; the coalescing liquid in the central filter element flows out under the action of its own weight and the foreign particles can be removed at the same time; A4. Stop the operation of the driving assembly; A5. The lifting structure lowers the lifting plate until the lifting plate is pressed on the partition plate; A6. Start the injection of the gas-liquid mixture.

[0016] In summary, the present invention has at least one of the following benefits: (1) The present invention has a simple structure and reliable functions. The gas-liquid mixture first forms a cyclone in the first cavity to remove large-volume impurity particles, and then flows through the dust removal filter element to remove small and medium-volume impurity particles, thereby preventing the impurity particles from clogging the coalescing filter element and ensuring the air permeability of the coalescing filter element. The air pressure in the first cavity will not increase suddenly, thereby protecting the coalescing filter element from damage.

[0017] (2) Integrating the dust removal filter element, the coalescing filter element, and the first cavity for forming a swirl flow into one device can enable the present invention to have a higher and smaller space occupancy, reduce the floor space required during storage, transportation, and installation, and improve ease of use.

[0018] (3) After the functional integration is realized in the present invention, since the dust removal filter element needs to make way for the vortex flow, an impurity accumulation area will be formed on the outside of the peripheral filter element; and the peripheral filter element can rotate to turn the impurity accumulation area originally pointing outward to point inward, even if the relatively clean side of the peripheral filter element points outward (to the vortex flow) and performs filtering operations, thereby increasing the service life of the peripheral filter element, reducing the frequency of cleaning / replacement, and improving the efficiency of production operations.

[0019] (4) The present invention can backwash the dust removal filter element without opening the door body, thereby avoiding the inflow of outside air, further avoiding material waste, and improving the yield rate. The present invention uses a coalescing liquid to clean the dust removal filter element, without introducing an external water source, which can achieve a water-saving effect, and without the introduction of external impurities, it can avoid the problem of reduced purity of gas products.

[0020] (5) Since the gas-liquid mixture flows from the outside to the inside of the dust filter element, most of the impurity particles adhere to the outer surface of the dust filter element. Therefore, using coalesced water for backwashing from the inside to the outside has a better cleaning effect. In addition, during backwashing, the peripheral filter element can rotate, and the centrifugal force further accelerates the speed and effect of impurity particles falling off the dust filter element.

[0021] (6) The present invention adopts a lifting plate to control the storage and discharge of the coalesced liquid, and a plurality of water permeable holes are provided. This enables the coalesced liquid to have a larger instantaneous flow rate when discharging the coalesced liquid, so that the coalesced liquid can temporarily fill the inner cavity of the peripheral filter element. When the peripheral filter element rotates, the coalesced liquid will be thrown out from the upper, middle and lower parts of the side wall of the peripheral filter element, thereby avoiding a cleaning blind spot in the middle and upper parts of the side wall of the peripheral filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present application is further described below with reference to the accompanying drawings: Figure 1 It is a schematic front view of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional top view of the feed pipe and the first shell; Figure 3 This is a schematic diagram of the state where the lifting plate is pressed against the partition plate; Figure 4 This is a schematic diagram of the upward state of the jacking plate; Figure 5 It is a schematic diagram of the position and structure of the water-permeable hole in a vertical section; Figure 6 Schematic diagram of installation position and structure of winch and sling; Figure 7 This is a schematic diagram of the installation position and status of the pneumatic push rod; Figure 8 It is a bottom view schematic diagram of the installation position of the central filter element and the peripheral filter element; Fig. 9 It is a schematic diagram of the state of the impurity accumulation area pointing to the center filter element from above; Fig.10 This is a schematic diagram of the installation position of the drive component; Fig.11 is a schematic diagram of the structure of the drive component; Fig.12 is a schematic diagram of the connection state between the second gear ring and the driving gear; Fig.13 A schematic diagram of a top view of the structure of the first gear ring and the second gear ring in a connected state; Fig.14 It is a schematic diagram of the connection structure between the peripheral filter element and the first inner ring; Fig.15 To strengthen the installation position and structural diagram of the sleeve; Fig.16 This is a schematic diagram of the installation position of the separation filter element.

[0023] Description of reference numerals: In the figure, 1. Shell; 101. First shell; 102. Second shell; 103. Partition plate; 11. Feed pipe; 12. Top plate; 13. Exhaust pipe; 2. Dust filter element; 21. Central filter element; 22. Peripheral filter element; 221. Impurity accumulation area; 222. Core body; 223. Reinforcement sleeve; 3. Coalescing filter element; 31. Lifting plate; 311. Support cylinder; 312. Water permeable hole; 313. Sling; 3131. Winch; 314. Pneumatic push rod; 4. Water collection tank; 5. driving assembly; 51. first bearing; 511. first inner ring; 512. first outer ring; 52. first gear ring; 53. second gear ring; 531. bevel gear structure; 54. second bearing; 55. driving motor; 551. driving gear; 6. Separate the filter element. DETAILED DESCRIPTION

[0024] Based on the above structural features of the present application, the implementation methods of the present application are further described: Reference Figure 1-2 The present embodiment provides a gas-liquid separation coalescer, comprising a housing 1, a dust removal filter element 2 and a coalescing filter element 3. A first cavity and a second cavity disposed above the first cavity are provided in the housing 1. The housing 1 comprises a first shell 101 and a second shell 102 which are coaxially arranged, and the top end of the first shell 101 and the bottom end of the second shell 102 are mutually adapted and sealed and fixedly connected (for example, by an integrated fixed connection, by a welding fixed connection, or by a flange and a sealing ring fixed connection).

[0025] Reference Figure 1-2The first shell 101 is in an inverted cone shape, and the first cavity is in an inverted cone shape; the second shell 102 is in a straight cylindrical shape, and the second cavity is in a cylindrical shape. The side wall of the shell 1 is provided with a feed pipe 11 connected to the first cavity and an exhaust pipe 13 connected to the second cavity; the outer wall of the feed pipe 11 is tangent to the outer edge of the top of the first shell 101, and the outer side of the inner cavity of the feed pipe 11 is tangent to the outer edge of the top of the first cavity. The feed pipe 11 is sealed and fixedly connected to the first shell 101 (for example, fixedly connected in an integrated manner, fixedly connected by welding, or fixedly connected by bolts and sealing rings).

[0026] Reference Figure 1-2 The top of the second shell 102 is sealed and detachably mounted with a top plate 12 (for example, connected by a spring buckle and a sealing ring), and the exhaust pipe 13 is sealed and fixedly connected to the center of the top plate 12 or the top of the side wall of the second shell 102 (for example, through an integrated fixed connection, a welding fixed connection, or a bolt and a sealing ring fixed connection).

[0027] Reference Figure 1 A partition plate 103 is provided at the junction of the first cavity and the second cavity, and the partition plate 103 is placed horizontally; the outer edge of the partition plate 103 is sealed and detachably connected to the inner wall of the outer shell 1 (i.e., the top of the inner wall of the first shell 101 and / or the bottom of the inner wall of the second shell 102) (for example, fixedly connected by bolts and sealing rings). The dust removal filter element 2 is arranged at the lower surface of the partition plate 103, and the coalescing filter element 3 is arranged above the partition plate 103. The dust removal filter element 2 is a shell-shaped or cylindrical structure with an opening at the top and a sealing bottom, and the coalescing filter element 3 is a shell-shaped or cylindrical structure with an opening at the bottom and a sealing top. The dust removal filter element 2 and the coalescing filter element 3 are arranged in an open-to-opposite state, and the partition plate 103 is provided with a first through hole for connecting the inner cavity of the dust removal filter element 2 and the inner cavity of the coalescing filter element 3. When in use, the gas-liquid mixture in the inner cavity of the dust removal filter element 2 flows into the inner cavity of the coalescing filter element 3 through the first through hole.

[0028] When in use, first, the gas-liquid mixture is injected into the first cavity through the feed pipe 11 and forms a cyclone. The large-volume impurity particles and large-volume liquid droplets in the gas-liquid mixture collide with the inner wall of the first shell 101 under the action of centrifugal force, accumulate into liquid droplets, and then flow downward until convergence is achieved (converged at the bottom of the first cavity or the bottom of the water collection bin 4); then, under the action of air pressure, the gas-liquid mixture in the middle of the cyclone passes through the side wall of the dust removal filter element 2 and flows into the inner cavity of the coalescing filter element 3, so that the small and medium-volume impurity particles in the gas-liquid mixture adhere to the side wall of the dust removal filter element 2; then, under the action of air pressure, the gas-liquid mixture in the inner cavity of the coalescing filter element 3 penetrates the coalescing filter element 3, and the gas-liquid mixture in the inner cavity of the coalescing filter element 3 passes through the coalescing filter element 3. The liquid drops of small and medium volume in the gas-liquid mixture are intercepted by the side wall of the coalescing filter element 3 and coalesced to obtain coalesced liquid droplets, which flow downward along the inner and outer walls of the coalescing filter element 3 (the coalesced liquid droplets flowing downward along the outer wall of the coalescing filter element 3 eventually converge into coalescing liquid and accumulate at the bottom of the second cavity, and the coalesced liquid droplets flowing downward along the inner wall of the coalescing filter element 3 partially penetrate into the side wall of the coalescing filter element 3, and the other part drips onto the dust removal filter element 2. A part of the coalescing liquid dripping onto the dust removal filter element 2 evaporates and flows into the inner cavity of the coalescing filter element 3 again under the action of air pressure, and the other part drips at the bottom of the second cavity). After removing impurity particles and water from the gas-liquid mixture, the required gas is obtained, and the required gas is discharged through the exhaust pipe 13.

[0029] Reference Figure 3 to Figure 5 The bottom end of the coalescing filter element 3 is provided with a lifting plate 31, and the lifting plate 31 is provided with a plurality of water-permeable holes 312, which are through holes. The lifting plate 31 is provided with a support cylinder 311 for connecting and supporting the coalescing filter element 3, and the coalescing filter element 3, the support cylinder 311, the first through hole and the dust removal filter element 2 are coaxially arranged and sequentially connected. The lifting plate 31 can move longitudinally, so as to realize the crimping and separation with the partition plate 103, and is respectively used to realize the storage and discharge of the coalescing liquid. When the coalescing liquid is discharged through the first through hole, it can backwash the impurity particles on the dust removal filter element 2. When the lifting plate 31 is pressed against the upper surface of the partition plate 103, the partition plate 103 can block the bottom of the water-permeable hole 312, so that the coalescing liquid can be stored (i.e., stored at the bottom of the second cavity, wherein the water-permeable hole 312, the upper surface of the lifting plate 31, the outer wall of the support cylinder 311 and the inner wall of the second shell 102 constitute a space for accommodating the coalescing liquid); when the lifting plate 31 rises to separate from the partition plate 103, a gap is generated between the lifting plate 31 and the partition plate 103. The water-permeable hole 312 and the first through hole are connected through the gap, so that the coalescing liquid can flow into the dust filter element 2 through the water-permeable hole 312 and the first through hole. In the process of the coalescing liquid penetrating the side wall of the dust filter element 2 from the inside to the outside, it can take away the foreign particles adhering to the side wall of the dust filter element 2, thereby realizing backwashing. The width of the gap is not less than the diameter of the first through hole, and the sum of the cross-sectional areas of all the water-permeable holes 312 is not less than the sum of the cross-sectional areas of all the first through holes, thereby increasing the instantaneous flow rate of the coalesced liquid when it is discharged.

[0030] Compared with traditional technology, the support tube 311 of the present invention can significantly increase the maximum liquid level of the coalescing liquid (the maximum liquid level is equal to the height position of the top of the support tube 311 when the lifting plate 31 is pressed onto the partition plate 103), that is, increase the amount of temporarily stored coalescing liquid for backwashing.

[0031] An inner support frame is provided inside the coalescing filter element 3, and the bottom of the inner support frame is detachably connected to the support cylinder 311 by bolts. The inner support frame is a conventional prior art in the industry, and the specific structure is not described in detail.

[0032] Reference Figure 5 The support tube 311 is sealed and fixedly connected to the lifting plate 31 (for example, through an integrated fixed connection, a fixed connection through bolts and a sealing ring, etc.).

[0033] Reference Figure 3 , Figure 4 , Figure 6 and Figure 7 The lifting plate 31 is connected to the lifting structure. The lifting structure is used to drive the lifting plate 31 to move longitudinally; the lifting plate 31, the support cylinder 311 and the coalescing filter element 3 move longitudinally synchronously.

[0034] Reference Figure 6 The lifting structure is a sling 313 and a winch 3131; the winch 3131 is fixedly installed on the upper surface of the top plate 12 at the top of the shell 1 by bolts, and the top plate 12 is provided with a threading hole for the sling 313 to be routed; the top of the sling 313 is connected to the winch 3131, and the bottom is connected to the jacking plate 31. There are at least four winches 3131 (four slings 313 are installed correspondingly, and the outer edge positions of the jacking plate 31 are pulled respectively), so as to achieve uniform driving of the jacking plate 31 and avoid jamming due to eccentric load. The jacking plate 31 is a circular plate, and the bottom end connection positions of the four slings 313 are evenly arranged at equal intervals and angles along the outer edge of the jacking plate 31.

[0035] Reference Figure 7 The lifting structure is a vertical pneumatic push rod 314; the fixing seat of the pneumatic push rod 314 is connected to the inner wall of the housing 1 (for example, fixedly connected by bolts), and the output shaft of the pneumatic push rod 314 is connected to the lifting plate 31 (for example, fixedly connected). There are at least three pneumatic push rods 314, and the three pneumatic push rods 314 are evenly arranged along the inner wall of the second housing 102 at equal intervals and angles, so as to achieve uniform driving of the lifting plate 31 and avoid jamming due to eccentric load.

[0036] Reference Figure 1The gas-liquid separation coalescer also includes a water collecting bin 4, which is mounted at the bottom of the first shell 101 of the housing 1 (for example, by bolts and sealing rings to achieve a sealed fixed connection), and the inner cavity of the water collecting bin 4 is connected to the bottom of the first cavity. The gas-liquid separation coalescer is used vertically, and a frame structure (for example, a support frame composed of steel pipes) needs to be arranged around it to prevent the gas-liquid separation coalescer from tipping over; the frame structure is a conventional existing technology in the industry, and the specific structure is not repeated.

[0037] Reference Figure 2 and Figure 3 The dust removal filter element 2, the coalescing filter element 3 and the first through hole are respectively provided with a plurality of them, and the dust removal filter element 2, the coalescing filter element 3 and the first through hole are arranged one by one; the inner cavity of the coalescing filter element 3 and the inner cavity of the dust removal filter element 2 corresponding to each other are connected through the corresponding first through hole.

[0038] Reference Figure 2 and Figure 8 , there are several dust filter elements 2, and the dust filter elements 2 include a central filter element 21 installed at the center of the bottom surface of the partition plate 103 and a peripheral filter element 22 installed at the periphery of the central filter element 21; in order to form a swirl, the gas-liquid mixture needs to be injected at the edge of the first cavity, and in order to avoid the dust filter element 2 hindering the formation of the swirl, the dust filter element 2 cannot be set at the outer edge of the first cavity, that is, the central filter element 21 and the peripheral filter element 22 are both set in the middle of the partition plate 103. Part of the gas-liquid mixture in the swirl needs to flow inward laterally under the action of air pressure to enter the first through hole, so the outer side of the peripheral filter element 22 is more likely to accumulate impurity particles, thereby forming an impurity accumulation area 221. The density of impurity particles in the impurity accumulation area 221 gradually increases, which will cause the air permeability of the dust filter element 2 to decrease, and the air pressure in the first cavity to gradually increase (when the air pressure in the first cavity gradually increases, the dust filter element 2 will be compressed and shrink into a shriveled state, which will reduce its air permeability and further accelerate the speed of air pressure increase), causing damage to the outer shell 1 and the dust filter element 2; and the gas-liquid mixture contains moisture, which will increase the viscosity of the impurity particles in the impurity accumulation area 221, further exacerbating the problem of reduced air permeability of the dust filter element 2. When the moisture content in the subsequent gas-liquid mixture decreases, the viscous impurity particles adhering to the surface of the dust filter element 2 will become compacted, and it is difficult to fall off under the scouring of the liquid flow formed by the weight of the coalescing liquid, so additional centrifugal force is required to assist the falling of the impurity particles.

[0039] Reference Fig. 9 The peripheral filter element 22 is arranged in a circular array with the central filter element 21 as the center, and the distance between the peripheral filter element 22 and the central filter element 21 is 0.2 to 0.4 times the radius of the partition plate 103, so that the peripheral filter element 22 gives way to the swirl.

[0040] Reference Fig. 9The central filter element 21 is provided with one, the peripheral filter element 22 is provided with six, and the coalescing filter element 3, the first through hole and the water permeable hole 312 are each provided with seven, thereby increasing the instantaneous flow rate of the coalescing liquid.

[0041] Reference Figure 8 and Fig. 9 In the present invention, the peripheral filter element 22 can rotate so that the impurity accumulation area 221 points to the central filter element 21, that is, the relatively clean side of the peripheral filter element 22 points to the outside and performs the filtering operation on the impurity particles, thereby avoiding the problem of the gradual increase of the air pressure in the first cavity; and the working area of ​​the peripheral filter element 22 is increased (that is, 360 degrees of the side wall of the peripheral filter element 22 can be used for filtering, rather than just using a part), which can adsorb more impurity particles, thereby increasing the service life / single use cycle of the peripheral filter element 22 and avoiding the problem of frequent replacement / frequent cleaning of the peripheral filter element 22.

[0042] Reference Fig.10 The gas-liquid separation coalescer also includes a driving assembly 5 for driving the peripheral filter element 22 to rotate, and the driving assembly 5 is installed at the edge of the bottom surface of the partition plate 103.

[0043] Reference Figure 10 to Figure 13 The driving assembly 5 includes a first bearing 51, a first gear ring 52, a second gear ring 53, a second bearing 54 and a driving motor 55. The peripheral filter element 22 is installed on the bottom surface of the partition plate 103 through the first bearing 51, so that the peripheral filter element 22 can rotate freely around its own axis; the first gear ring 52 is sleeved on the outer wall of the peripheral filter element 22 and fixedly connected, the outer wall of the first gear ring 52 is meshed with the inner wall of the second gear ring 53 through a tooth structure, and the outer wall of the second gear ring 53 is connected to the first housing 101 through the second bearing 54; the bottom surface of the second gear ring 53 is provided with a bevel gear structure 531, and the output shaft end of the driving motor 55 is provided with a driving gear 551, the driving gear 551 is a bevel gear, and the driving gear 551 is meshed with the bevel gear structure 531.

[0044] Reference Fig.12 The housing of the driving motor 55 is fixedly mounted on the outer wall of the first housing 101 by bolts; the driving motor 55 is placed horizontally, and the output shaft of the driving motor 55 is inserted into the receiving hole of the first housing 101. That is, the rotor and stator in the housing of the driving motor 55 are both arranged outside the first cavity, thereby avoiding short circuit caused by water contact.

[0045] Reference Fig.14The first bearing 51 includes a first inner ring 511 and a first outer ring 512 that can rotate relative to each other, and the first inner ring 511 and the first outer ring 512 are connected by balls. The first inner ring 511 is sleeved on the top of the outer wall of the peripheral filter element 22 and is fixedly connected (for example, connected by bolts and a sealing ring), and the first outer ring 512 is fixedly connected to the bottom surface of the partition plate 103 (for example, fixedly connected by bolts and a sealing ring). Since the peripheral filter element 22 needs to rotate, it is inevitable to reserve a gap between the peripheral filter element 22 and the partition plate 103. The first inner ring 511 is sleeved on the periphery of the gap, so as to prevent the gas-liquid mixture from bypassing the peripheral filter element 22 through the gap and directly flowing into the aggregation filter element, thereby improving the filtering effect.

[0046] Reference Fig.15 The peripheral filter element 22 includes a core body 222, an inner support frame installed on the inner wall of the core body 222, and a reinforcing sleeve 223 installed on the top of the outer wall of the core body 222. The reinforcing sleeve 223 is fixedly connected to the inner support frame (for example, fixedly connected by through bolts). The reinforcing sleeve 223 and the inner support frame clamp and fix the core body 222 from both inside and outside. An annular mounting fin is provided in the middle of the outer wall of the reinforcing sleeve 223, and a plurality of screw holes are provided on the mounting fin; the first inner ring 511 is pressed on the upper surface of the mounting fin and the corresponding mounting bolts are screwed into the screw holes on the mounting fin, thereby realizing the installation of the first inner ring 511 and the peripheral filter element 22; the first toothed ring 52 is pressed on the lower surface of the mounting fin and the corresponding mounting bolts are screwed into the screw holes on the mounting fin, thereby realizing the installation of the first toothed ring 52 and the peripheral filter element 22. The inner support frame is a conventional prior art in the industry, and the specific structure is not repeated here.

[0047] The central filter element 21 is directly fixed to the bottom surface of the partition plate 103 by bolts, which is a conventional existing technology in the industry and will not be described in detail.

[0048] Reference Figure 1 A first valve body is installed on the feed pipe 11, a second valve body is installed on the exhaust pipe 13, and a third valve body is installed at the bottom opening of the water collecting bin 4; the user controls the working state of the present invention by controlling the opening and closing of the first valve body, the second valve body and the second valve body. The first valve body, the second valve body and the second valve body are manual valve bodies or electric control valve bodies. The user opens the third valve body to discharge the impurity particles and water in the water collecting bin 4; closing the third valve body can prevent the outside air from entering the inside of the housing 1.

[0049] The pneumatic push rod 314 is connected to and communicated with the air pipe to realize the supply of gas; the side wall of the second shell 102 is provided with a pipe hole, the air pipe passes through the pipe hole and is sealed (for example, using a sealing ring); the outer end of the air pipe is connected to and communicated with an air pump to realize the driving of the pneumatic push rod 314.

[0050] The side wall of the first housing 101 and the side wall of the second housing 102 are respectively provided with door openings, and a door body that can be opened and closed (for example, by a rotating shaft and a spring buckle) is installed in the door opening, and the door body and the door opening are crimped by a sealing strip. The user opens the door body to install and replace the dust filter element 2 and the coalescing filter element 3. A transparent glass window is provided on the door body, and the user observes whether the dust filter element 2 is clean through the glass window.

[0051] Reference Fig.16 The gas-liquid separation coalescer also includes a separation filter element 6, which is a cover-like structure with a sealed top and an open bottom. The separation filter element 6 is arranged in the second cavity, and the top of the coalescing filter element 3 is arranged in the middle and lower part of the inner cavity of the separation filter element 6 (for providing a movable space for the coalescing filter element 3); the outer edge of the bottom end of the separation filter element 6 is fixedly mounted on the inner wall of the second housing 102 (for example, fixedly connected by bolts). The separation filter element 6 is made of hydrophobic material, which can limit the water in the middle and lower part of the second cavity to prevent the escape of water molecules, thereby further enhancing the water removal effect.

[0052] A method for adjusting a gas-liquid separation coalescer, that is, the steps for adjusting the gas-liquid separation coalescer include: S1, closing the first valve body to stop the injection of the gas-liquid mixture; S2, starting the drive motor 55, driving the peripheral filter element 22 to rotate 180 degrees through the second gear ring 53 and the first gear ring 52, so that the impurity accumulation area 221 points to the central filter element 21, and then closing the drive motor 55; S3, opening the first valve body to start the injection of the gas-liquid mixture.

[0053] An air pressure sensor is disposed on the inner wall of the first housing 101 to detect the pressure in the first cavity in real time, thereby determining whether the peripheral filter element 22 needs to be rotated, adjusted or backwashed.

[0054] A backwashing method for a gas-liquid separation coalescer, that is, the steps of backwashing the gas-liquid separation coalescer include: A1, closing the first valve body to stop the injection of the gas-liquid mixture; A2, starting the drive motor 55, starting the drive assembly 5, and driving the peripheral filter element 22 to rotate; A3, starting the lifting structure, lifting the lifting plate 31 originally pressed on the partition plate 103, until a gap is formed between the lifting plate 31 and the partition plate 103, so that the coalescing liquid flows through the water permeable hole 312 and the first through hole and then enters the dust removal filter element 2 Inner cavity; during the rotation of the peripheral filter element 22, the internal coalesced liquid can be thrown out, and the foreign particles adhering to the peripheral filter element 22 can be removed at the same time; the coalesced liquid in the central filter element 21 flows out under the action of its own weight, and the foreign particles adhering to the central filter element 21 can be removed at the same time; A4, stop the operation of the drive component 5; A5, the lifting structure lowers the lifting plate 31, and when the lifting plate 31 is pressed against the partition plate 103, the operation of the lifting structure is stopped; A6, open the first valve body to start the injection of the gas-liquid mixture.

[0055] When the weight of the lifting plate 31 and the coalescing filter element 3 cannot stably press-fit on the partition plate 103, the lifting plate 31 will bounce (the air pressure applies an upward thrust to the coalescing filter element 3, and the coalescing filter element 3 transmits the pulling force to the lifting plate 31, causing the bouncing), that is, a temporary gap is generated between the lifting plate 31 and the partition plate 103, and the gas-liquid mixture will flow directly into the second cavity through the temporary gap and the water permeable hole 312 to bypass the coalescing filter element 3, resulting in a decrease in the gas-liquid separation effect of the present invention. To avoid such problems: an inner recess is provided on the bottom surface of the lifting plate 31, and a magnetic block is fixedly installed in the inner recess (for example, fixedly connected by bolts). The magnetic block can absorb the partition plate 103, thereby increasing the sealing performance when the lifting plate 31 and the partition plate 103 are crimped together, and preventing the lifting plate 31 from jumping under the action of air pressure; or a pneumatic push rod 314 is used to continuously apply pressure to the lifting plate 31, thereby increasing the sealing performance when the lifting plate 31 and the partition plate 103 are crimped together, and preventing the lifting plate 31 from jumping under the action of air pressure.

[0056] The partition plate 103 is made of ferrous metal material (such as 45# steel), and the magnetic block is made of permanent magnetic material (such as aluminum-nickel-cobalt permanent magnetic alloy, iron-chromium-cobalt permanent magnetic alloy, permanent magnetic ferrite, etc.). The surface of the partition plate 103 is coated with a film (such as a plastic waterproof film) to reduce rust; a rubber sealing layer is provided on the bottom surface of the lifting plate 31 to increase the crimping seal and avoid scratching the coating on the surface of the partition plate 103. The magnetic block is arranged above the rubber sealing layer, that is, the rubber sealing layer can block the lower end opening of the inner concave portion, thereby preventing the magnetic block from scratching the coating on the surface of the partition plate 103. The rubber sealing layer opens an adapter hole at the corresponding position of the water-permeable hole 312 to prevent the water-permeable hole 312 from being blocked.

[0057] The present invention also includes an electrical cabinet, which is fixedly mounted on the outer wall of the housing 1 by bolts; the drive motor 55, the winch 3131, the air pump, and the air pressure sensor are respectively connected to the electrical cabinet through wires and signal lines; the electrical cabinet is connected to an external power supply and an external computer through wires and signal lines, and the computer controls the start and stop and other working states of the drive motor 55, the winch 3131, the air pump, and the air pressure sensor in the present invention through the electrical cabinet.

[0058] Reference Figure 1 The dust removal filter element 2 is in the shape of an inverted cone or an inverted truncated cone, which is conducive to the falling of foreign particles.

[0059] The present invention has a simple structure and reliable functions. The gas-liquid mixture first forms a vortex in the first cavity to remove large-volume impurity particles, and then flows through the dust removal filter element 2 to remove small and medium-sized impurity particles, thereby preventing impurity particles from clogging the coalescing filter element 3 and ensuring the air permeability of the coalescing filter element 3. The air pressure in the first cavity will not suddenly increase, thereby protecting the coalescing filter element 3 from damage.

[0060] In conventional technology, a separate pre-filter is usually provided at the front end of the gas-liquid separation device to filter out impurity particles, but such a method will increase the overall footprint of the device. Integrating the dust removal filter element 2, the coalescing filter element 3, and the first cavity for forming a cyclone into one device can make the present invention have a higher and smaller footprint, reduce the footprint during storage, transportation, and installation, and improve the convenience of use.

[0061] After the functional integration is realized in the present invention, since the dust removal filter element 2 needs to make way for the swirl, an impurity accumulation area 221 will be formed on the outside of the peripheral filter element 22; and the peripheral filter element 22 can point the impurity accumulation area 221 inward by rotating, that is, the relatively clean side of the peripheral filter element 22 is pointed outward to filter out the impurity particles, thereby increasing the service life of the peripheral filter element 22, reducing the frequency of cleaning / replacement, and improving the efficiency of production operations.

[0062] In the conventional technology, it is necessary to open the pre-filter and then clean / replace the dust filter element 2. However, after opening the pre-filter, outside air will flow into the gas-liquid separation device through the pipeline. Therefore, after maintenance, it is necessary to inject part of the gas-liquid mixture to discharge the internal air. The gas product obtained by this operation cannot be used as a qualified product because it is mixed with outside air. It needs to be discarded, which will cause waste of materials. The present invention can backwash the dust filter element 2 without opening the door body, thereby avoiding the inflow of outside air and further avoiding waste of materials.

[0063] In the conventional technology, the coalescing liquid is usually directly discharged through the drainage hole on the side wall of the housing 1. The filter element in the pre-filter needs to be cleaned with an additional external water source. The coalescing liquid is generated by the coalescing effect and has a high purity, which will cause waste. The present invention uses the coalescing liquid to clean the dust removal filter element 2, without the need to introduce an external water source, which can achieve a water-saving effect. Moreover, since there is no introduction of external impurities (impurities in the external water source and the external air), the problem of reduced purity of the gas product can be avoided, the cleaning requirements can be met, and the product quality can be improved. When the dust removal filter element 2 is washed multiple times and cannot be used, the user opens the door and replaces the dust removal filter element 2.

[0064] Since the gas-liquid mixture flows from the outside to the inside of the dust filter element 2, most of the impurity particles adhere to the outer surface of the dust filter element 2. Therefore, using coalesced water for backwashing from the inside to the outside has a better cleaning effect; and, while backwashing, the peripheral filter element 22 can rotate, and the centrifugal force further accelerates the speed and effect of the impurity particles falling off the dust filter element 2.

[0065] Compared with traditional valve control, the present invention adopts a lifting plate 31 to control the storage and discharge of the coalesced liquid, and a plurality of water permeable holes 312 are provided, so that the coalesced liquid can have a larger instantaneous flow rate when discharging the coalesced liquid, so that the coalesced liquid can temporarily fill the inner cavity of the peripheral filter element 22. When the peripheral filter element 22 rotates, the coalesced liquid will be thrown out from the middle and upper part of the side wall of the peripheral filter element 22, thereby avoiding the occurrence of a cleaning blind spot in the middle and upper part of the side wall of the peripheral filter element 22.

[0066] In the conventional technology, the user needs to remove the pre-filter to clean or replace the filter element inside it, which results in cumbersome maintenance steps, time-consuming and labor-intensive problems. The present invention uses the coalescing liquid produced by the coalescing filter element 3 to backwash the dust removal filter element 2, which can be cleaned without disassembling the housing 1, thus avoiding the problem of frequent disassembly for maintenance.

[0067] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0068] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] To sum up, for those skilled in the art, according to the guidance of the present invention, without departing from the principles and spirit of the present invention, the changes, modifications, substitutions and deformations made to the present invention still fall within the protection scope of the present invention.

Claims

1. A gas-liquid separation coalescer, characterized in that: It comprises a housing (1), a dust removal filter element (2) and a coalescing filter element (3); The shell (1) is provided with a first cavity and a second cavity disposed above the first cavity, the first cavity being in an inverted cone shape; a side wall of the shell (1) is provided with a feed pipe (11) connected to the first cavity and an exhaust pipe (13) connected to the second cavity; the feed pipe (11) is arranged tangent to the outer edge of the top of the first cavity; A partition plate (103) is provided at the junction of the first cavity and the second cavity; the dust removal filter element (2) is arranged at the lower surface of the partition plate (103), and the coalescing filter element (3) is arranged above the partition plate (103); the dust removal filter element (2) and the coalescing filter element (3) are arranged in an open state facing each other, and the partition plate (103) is provided with a first through hole for connecting the inner cavity of the dust removal filter element (2) and the inner cavity of the coalescing filter element (3); A lifting plate (31) is provided at the bottom end of the coalescing filter element (3), and the lifting plate (31) is provided with a water permeable hole (312); the lifting plate (31) is provided with a supporting cylinder (311) for connecting and supporting the coalescing filter element (3); the lifting plate (31) is capable of longitudinal movement, thereby achieving compression connection and separation with the partition plate (103), and is respectively used for storing and discharging coalescing liquid; when the coalescing liquid is discharged through the first through hole, it can backwash the impurity particles on the dust removal filter element (2).

2. The gas-liquid separation coalescer according to claim 1, characterized in that: The lifting plate (31) is connected to the lifting structure.

3. The gas-liquid separation coalescer according to claim 2, characterized in that: The lifting structure comprises a sling (313) and a winch (3131); the winch (3131) is mounted on the upper surface of a top plate (12) at the top of the housing (1); the top plate (12) is provided with a threading hole for routing the sling (313); the top end of the sling (313) is connected to the winch (3131), and the bottom end is connected to the lifting plate (31).

4. The gas-liquid separation coalescer according to claim 2, characterized in that: The lifting structure is a vertical pneumatic push rod (314); a fixing seat of the pneumatic push rod (314) is connected to the inner wall of the outer shell (1), and an output shaft of the pneumatic push rod (314) is connected to the lifting plate (31).

5. The gas-liquid separation coalescer according to claim 2, characterized in that: It also comprises a water collecting bin (4), the water collecting bin (4) being mounted at the bottom end of the outer shell (1), the inner cavity of the water collecting bin (4) being in communication with the bottom end of the first cavity.

6. The gas-liquid separation coalescer according to claim 5, characterized in that: The dust removal filter element (2), the coalescing filter element (3) and the first through hole are respectively provided with a plurality of them, and the dust removal filter element (2), the coalescing filter element (3) and the first through hole are arranged in a one-to-one correspondence; the inner cavity of the coalescing filter element (3) and the inner cavity of the dust removal filter element (2) which correspond to each other are connected through the first through hole.

7. The gas-liquid separation coalescer according to claim 6, characterized in that: The dust removal filter element (2) comprises a central filter element (21) installed at the center of the partition plate (103) and a peripheral filter element (22) installed at the periphery of the central filter element (21); the peripheral filter element (22) is capable of rotating so that the impurity accumulation area (221) points to the central filter element (21).

8. The gas-liquid separation coalescer according to claim 7, characterized in that: It also includes a driving assembly (5) for driving the peripheral filter element (22) to rotate, the driving assembly (5) being mounted at an edge position of the bottom surface of the partition plate (103); The driving assembly (5) comprises a first bearing (51), a first gear ring (52), a second gear ring (53), a second bearing (54) and a driving motor (55); the first bearing (51) comprises a first inner ring (511) and a first outer ring (512) which are capable of relatively rotating; the first inner ring (511) is sleeved on the top of the outer side wall of the peripheral filter element (22) and is fixedly connected; the first outer ring (512) is fixedly connected to the bottom surface of the partition plate (103); the first gear ring (52) is sleeved on the peripheral filter element The outer wall of the first gear ring (52) and the inner wall of the second gear ring (53) are fixedly connected, the outer wall of the first gear ring (52) meshes with the inner wall of the second gear ring (53) via a gear structure, and the outer wall of the second gear ring (53) is connected to the housing (1) via the second bearing (54); a bevel gear structure (531) is provided on the bottom surface of the second gear ring (53), and a drive gear (551) is provided at the end of the output shaft of the drive motor (55), and the drive gear (551) is a bevel gear, and the drive gear (551) meshes with the bevel gear structure (531).

9. A method for regulating a gas-liquid separation coalescer, characterized in that: The step of adjusting the gas-liquid separation coalescer according to claim 8 comprises: S1, stop the injection of gas-liquid mixture; S2, starting the driving motor (55), driving the peripheral filter element (22) to rotate 180 degrees via the second gear ring (53) and the first gear ring (52), so that the impurity accumulation area (221) points to the central filter element (21), and then turning off the driving motor (55); S3. Start the injection of the gas-liquid mixture.

10. A backwashing method for a gas-liquid separation coalescer, characterized in that: The step of backwashing the gas-liquid separation coalescer according to claim 8 comprises: A1. Stop the injection of gas-liquid mixture; A2, starting the driving assembly (5) to drive the peripheral filter element (22) to rotate; A3, starting the lifting structure, lifting the lifting plate (31) originally pressed on the partition plate (103), so that the coalescing liquid flows through the water-permeable hole (312) and the first through hole and then enters the inner cavity of the dust removal filter element (2); the coalescing liquid inside the peripheral filter element (22) can be thrown out during the rotation process, and the foreign particles can be removed at the same time; the coalescing liquid in the central filter element (21) flows out under the action of its own weight, and the foreign particles can be removed at the same time; A4. Stopping the operation of the driving component (5); A5. The lifting structure lowers the lifting plate (31) until the lifting plate (31) is pressed onto the partition plate (103); A6. Start the injection of the gas-liquid mixture.

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