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 present invention relates to the technical field of gas-liquid separators, and particularly relates to a gas-liquid separation coalescer, an adjustment method and a backwashing method. Background Art

[0002] Gas-liquid separators include vane type, cyclone type and filter element type, and are used to separate gas-liquid mixtures to obtain gas products and liquid products.

[0003] The cyclone gas-liquid separator utilizes the centrifugal force principle to throw out the heavier moisture; the filter element type gas-liquid separator utilizes the coalescence principle. When the coalescing filter element filters the gas-liquid mixture, it can coalesce the tiny and free water molecules therein, and the water droplets converge on the surface, thereby realizing the filtration of moisture.

[0004] In the traditional technology, impurity particles (such as dust, raw material residues, preparation product residues, etc.) are doped in the gas-liquid mixture. The impurity particles will adhere to the surface of the coalescing filter element and cause blockage, reducing the air permeability of the coalescing filter element. Further, the air pressure in the inner cavity of the coalescing filter element will suddenly increase, resulting in the coalescing filter element being damaged by tensile overload (such as tearing). Summary of the Invention

[0005] In order to overcome the problem of "impurity particles in the gas-liquid mixture block the coalescing filter element, resulting in damage to the coalescing filter element due to tensile overload" existing in the above background art, the present invention provides a gas-liquid separation coalescer, an adjustment method and a backwashing method.

[0006] The technical solutions adopted by the present invention to solve the above technical problems are as follows:

[0007] A gas-liquid separation coalescer includes a housing, a dust removal filter element and a coalescing filter element; a first cavity and a second cavity located above the first cavity are provided in the housing, and the first cavity is in an inverted conical shape; a feed pipe communicating with the first cavity and an exhaust pipe communicating with the second cavity are provided on the side wall of the housing; the feed pipe is tangentially arranged at the outer edge of the top of the first cavity; a partition plate is provided at the junction position between 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; the dust removal filter element and the coalescing filter element are arranged with their openings facing each other, and the partition plate is provided with a first through hole for communicating the inner cavities of the dust removal filter element and the coalescing filter element; a lifting plate is provided at the bottom end of the coalescing filter element, and the lifting plate is provided with water permeable holes; the lifting plate is provided with a support cylinder for connecting and supporting the coalescing filter element; the lifting plate can move longitudinally to realize pressing and separating from the partition plate, respectively for storing and discharging the coalesced liquid; when the coalesced liquid is discharged through the first through hole, it can backwash the impurity particles on the dust removal filter element.

[0008] As a further optimized solution of the present invention, the jacking plate is connected to the lifting structure.

[0009] As a further optimized solution 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 housing, and the top plate is provided with a threading hole for the sling to pass through; the top end of the sling is connected to the winch, and the bottom end is connected to the jacking plate.

[0010] As a further optimized solution of the present invention, the lifting structure is a vertically arranged pneumatic push rod; the fixed seat of the pneumatic push rod is connected to the inner wall of the housing, and the output shaft of the pneumatic push rod is connected to the jacking plate.

[0011] As a further optimized solution of the present invention, a water collecting bin is further included, the water collecting bin is installed at the bottom end of the housing, and the inner cavity of the water collecting bin is communicated with the bottom end of the first cavity.

[0012] As a further optimized solution of the present invention, a plurality of dust removal filters, coalescing filters and first through holes are respectively provided, and the dust removal filters, the coalescing filters and the first through holes are arranged in one-to-one correspondence; the inner cavities of the mutually corresponding coalescing filters and the dust removal filters are communicated through the first through holes.

[0013] As a further optimized solution of the present invention, the dust removal filter includes a central filter installed at the center position of the partition plate and an outer peripheral filter installed on the outer periphery of the central filter; the outer peripheral filter can rotate so that the impurity accumulation area points to the central filter.

[0014] As a further optimized solution of the present invention, a driving assembly for driving the outer peripheral filter to rotate is further included, and the driving assembly is installed at the edge position of the bottom surface of the partition plate; the driving assembly 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 outer side wall top of the outer peripheral filter 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 outer peripheral filter 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 housing through the second bearing; a bevel gear structure is provided on the bottom surface of the second gear ring, and a driving gear is provided at the end of the output shaft of the driving motor, the driving gear is a bevel gear, and the driving gear is meshed with the bevel gear structure.

[0015] A regulating method for a gas-liquid separation coalescer, that is, the steps for regulating the gas-liquid separation coalescer include: S1. Stop injecting the gas-liquid mixture; S2. Start the driving motor, drive the outer 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 turn off the driving motor; S3. Start injecting the gas-liquid mixture.

[0016] A backwashing method for a gas-liquid separation coalescer, that is, the steps for backwashing the gas-liquid separation coalescer include: A1. Stop injecting the gas-liquid mixture; A2. Start the driving assembly to drive the outer filter element to rotate;

[0017] A3. Start the lifting structure to lift the jacking plate originally pressed on the partition plate, so that the coalesced liquid flows through the water-permeable holes and the first through holes and then enters the inner cavity of the dust removal filter element; during the rotation of the outer filter element, the coalesced liquid inside can be thrown out, and at the same time, the impurity particles are removed; the coalesced liquid in the central filter element flows out under the action of its own weight, and at the same time, the impurity particles are removed; A4. Stop the operation of the driving assembly; A5. The lifting structure lowers the jacking plate until the jacking plate is pressed against the partition plate; A6. Start injecting the gas-liquid mixture.

[0018] In summary, the present invention has at least one of the following beneficial effects:

[0019] (1) The structure of the present invention is simple and the function is reliable. The gas-liquid mixture first forms a swirl in the first cavity to remove large-volume impurity particles, and then flows through the dust removal filter element to remove medium- and small-volume impurity particles, avoiding the blockage of the coalescing filter element by impurity particles and ensuring the air permeability of the coalescing filter element. Then, the air pressure in the first cavity will not suddenly increase, protecting the coalescing filter element from damage.

[0020] (2) Integrating the dust removal filter element, the coalescing filter element, and the first cavity for forming a swirl into one device can make the present invention have a smaller occupied space, reduce the floor area during storage, transportation, and installation, and improve the convenience of use.

[0021] (3) After the functions of the present invention are integrated, since the dust removal filter element needs to make way for the swirl, an impurity accumulation area will be formed outside the outer filter element; and the outer filter element can rotate to turn the originally outward-pointing impurity accumulation area inward, that is, make the relatively clean side of the outer filter element point outward (the swirl) and perform the filtering operation, thereby increasing the service life of the outer filter element, reducing the cleaning / replacement frequency, and improving the efficiency of production operations.

[0022] (4) The present invention can perform backwashing on the dust removal filter element without opening the door body, which avoids the inflow of external air, further avoids material waste, and improves the finished product rate. The present invention uses coalescing liquid to clean the dust removal filter element, without introducing external water sources, which can achieve water-saving effects, and without the introduction of external impurities, which can avoid the problem of reduced purity of gas products.

[0023] (5) Since the gas-liquid mixture flows from the outside to the inside of the dust removal filter element, most of the impurity particles adhere to the outer surface of the dust removal filter element. Therefore, using coalesced water for backwashing from the inside to the outside has a better cleaning effect; moreover, while backwashing, the outer peripheral filter element can rotate, and the centrifugal force further accelerates the speed and effect of the impurity particles falling off from the dust removal filter element.

[0024] (6) The present invention uses a jacking plate to control the storage and discharge of the coalescing liquid, and there are multiple water permeable holes, which can make the coalescing liquid have a greater instantaneous flow rate when discharging the coalescing liquid, so that the coalescing liquid can briefly fill the inner cavity of the outer peripheral filter element. When the outer peripheral filter element rotates, the upper, middle, and lower parts of the side wall of the outer peripheral filter element will all have coalescing liquid thrown out, thus avoiding cleaning blind spots in the upper and middle parts of the side wall of the outer peripheral filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following further describes the present application in conjunction with the drawings:

[0026] Figure 1 It is a front view of the vertical section of the overall structure of the present invention;

[0027] Figure 2 It is a top view of the horizontal section of the feed pipe and the first housing;

[0028] Figure 3 It is a schematic diagram of the state where the jacking plate presses the partition plate;

[0029] Figure 4 It is a schematic diagram of the state where the jacking plate moves upward;

[0030] Figure 5 It is a front view of the vertical section of the position and structure of the water permeable holes;

[0031] Figure 6 It is a schematic diagram of the installation position and structure of the winch and the sling;

[0032] Figure 7 It is a schematic diagram of the installation position and state of the pneumatic push rod;

[0033] Figure 8 It is a bottom view of the installation position of the central filter element and the outer peripheral filter element;

[0034] Figure 9 It is a bottom view of the state where the impurity accumulation area points to the central filter element;

[0035] Figure 10 Schematic diagram of the installation position of the drive assembly;

[0036] Figure 11 Schematic diagram of the structure of the drive assembly;

[0037] Figure 12 Schematic diagram of the connection state between the second toothed ring and the drive gear;

[0038] Figure 13 Top view structural schematic diagram of the connection state between the first toothed ring and the second toothed ring;

[0039] Figure 14 Schematic diagram of the connection structure between the outer peripheral filter element and the first inner ring;

[0040] Figure 15 Schematic diagram of the installation position and structure of the reinforcing sleeve;

[0041] Figure 16 Schematic diagram of the installation position of the separation filter element.

[0042] Description of reference numerals:

[0043] In the figure,

[0044] 1. Housing; 101. First housing; 102. Second housing; 103. Partition board; 11. Feed pipe; 12. Top plate; 13. Exhaust pipe;

[0045] 2. Dust removal filter element; 21. Central filter element; 22. Outer peripheral filter element; 221. Impurity accumulation area; 222. Core body; 223. Reinforcing sleeve;

[0046] 3. Coalescing filter element; 31. Lifting plate; 311. Support cylinder; 312. Water permeable hole; 313. Suspension cable; 3131. Winch; 314. Pneumatic push rod;

[0047] 4. Water collecting bin;

[0048] 5. Drive assembly; 51. First bearing; 511. First inner ring; 512. First outer ring; 52. First toothed ring; 53. Second toothed ring; 531. Bevel tooth structure; 54. Second bearing; 55. Drive motor; 551. Drive gear;

[0049] 6. Separation filter element. Detailed implementation manners

[0050] Based on the above structural features of the present application, the implementation manners of the present application are further described as follows:

[0051] Referring to Figures 1 to 2, this embodiment provides a gas-liquid separation coalescer, which includes a housing 1, a dust removal filter element 2, and a coalescence filter element 3. A first cavity and a second cavity located above the first cavity are provided inside the housing 1. The housing 1 includes a first housing body 101 and a second housing body 102 arranged coaxially. The top end of the first housing body 101 and the bottom end of the second housing body 102 are mutually adapted and sealed and fixedly connected (for example, by integral fixed connection, by welding fixed connection, or by flange and sealing ring fixed connection).

[0052] Referring to Figures 1 to 2 , the first housing body 101 is in an inverted conical shape, and the first cavity is in an inverted conical shape; the second housing body 102 is in a straight cylindrical shape, and the second cavity is in a cylindrical shape. A feed pipe 11 communicating with the first cavity and an exhaust pipe 13 communicating with the second cavity are provided on the side wall of the housing 1; the outer side wall of the feed pipe 11 is tangentially arranged with the outer edge of the top of the first housing body 101, and the outer side of the inner cavity of the feed pipe 11 is tangentially arranged with the outer edge of the top of the first cavity. The feed pipe 11 is sealed and fixedly connected with the first housing body 101 (for example, by integral fixed connection, by welding fixed connection, or by bolt and sealing ring fixed connection).

[0053] Referring to Figures 1 to 2 , the top end of the second housing body 102 is sealed and detachably installed with a top plate 12 (for example, by spring snap and sealing ring connection), and the exhaust pipe 13 is sealed and fixedly connected with the center of the top plate 12 or the top end of the side wall of the second housing body 102 (for example, by integral fixed connection, by welding fixed connection, or by bolt and sealing ring fixed connection).

[0054] Referring to Figure 1 , a partition plate 103 is provided at the intersection position 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 with the inner wall of the housing 1 (that is, the top end inner wall of the first housing body 101 and / or the bottom end inner wall of the second housing body 102) (for example, by bolt and sealing ring fixed connection). The dust removal filter element 2 is arranged at the lower surface position of the partition plate 103, and the coalescence filter element 3 is arranged above the partition plate 103. The dust removal filter element 2 is in a shell-shaped or cylindrical structure with an open top and a sealed bottom, and the coalescence filter element 3 is in a shell-shaped or cylindrical structure with an open bottom and a sealed top. The dust removal filter element 2 and the coalescence filter element 3 are arranged with their openings facing each other, and the partition plate 103 is provided with a first through hole for communicating the inner cavity of the dust removal filter element 2 and the inner cavity of the coalescence filter element 3. During use, the gas-liquid mixture in the inner cavity of the dust removal filter element 2 flows into the inner cavity of the coalescence filter element 3 through the first through hole.

[0055] In use, first, the gas-liquid mixture is injected into the first cavity through the feed pipe 11 to form a swirl. Large-volume impurity particles and large-volume droplets in the gas-liquid mixture impact on the inner wall of the first housing 101 under the action of centrifugal force, accumulate into droplets and then flow downward until they converge (converge 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 swirl passes through the side wall of the dust removal filter element 2 and flows into the inner cavity of the coalescence filter element 3, so that medium and small-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 coalescence filter element 3 penetrates through the side wall of the coalescence filter element 3 and flows into the second cavity, so that medium and small-volume droplets in the gas-liquid mixture are intercepted by the side wall of the coalescence filter element 3 and coalesced to obtain coalesced droplets. The coalesced droplets flow downward along the inner and outer walls of the coalescence filter element 3 (the coalesced droplets flowing downward along the outer wall of the coalescence filter element 3 finally converge into coalesced liquid and accumulate at the bottom of the second cavity. The coalesced droplets flowing downward along the inner wall of the coalescence filter element 3 partially penetrate into the side wall of the coalescence filter element 3, and the other part drips onto the dust removal filter element 2. Part of the coalesced liquid dripping onto the dust removal filter element 2 evaporates and then flows into the inner cavity of the coalescence filter element 3 again under the action of air pressure, and the other part drips onto the bottom of the second cavity). After the gas-liquid mixture removes impurity particles and moisture, the required gas is discharged through the exhaust pipe 13.

[0056] Referring to Figures 3 to 5 , a lifting plate 31 is provided at the bottom end of the coalescence filter element 3. The lifting plate 31 is provided with a plurality of water-permeable holes 312, and the water-permeable holes 312 are through holes. The lifting plate 31 is provided with a support cylinder 311 for connecting and supporting the coalescence filter element 3. The coalescence filter element 3, the support cylinder 311, the first through hole and the dust removal filter element 2 are coaxially arranged and sequentially communicated. The lifting plate 31 can move longitudinally, so as to realize the pressing connection and separation with the partition plate 103, which are respectively used to realize the storage and discharge of the coalesced liquid. When the coalesced 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 holes 312, so that the coalesced liquid can be stored (that is, stored at the bottom position of the second cavity, where the water-permeable holes 312, the upper surface of the lifting plate 31, the outer wall of the support cylinder 311 and the inner wall of the second housing 102 form a space for accommodating the coalesced 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 holes 312 and the first through hole are communicated through this gap, so that the coalesced liquid can flow into the dust removal filter element 2 through the water-permeable holes 312 and the first through hole. When the coalesced liquid penetrates through the side wall of the dust removal filter element 2 from the inside to the outside, it can take away the impurity particles adhering to the side wall position of the dust removal filter element 2, so as to realize backwashing. The width of this 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, so as to improve the instantaneous flow rate when the coalesced liquid is discharged.

[0057] Compared with the traditional technology, the support cylinder 311 of the present invention can significantly increase the maximum liquid level of the coalesced liquid (the maximum liquid level is equal to the height position of the top end of the support cylinder 311 when the lifting plate 31 is crimped on the partition plate 103), that is, increase the amount of temporarily stored coalesced liquid for backwashing.

[0058] An inner support frame is provided inside the coalescence 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 existing technology in the industry, and its specific structure will not be described in detail.

[0059] Refer to Figure 5 , the support cylinder 311 is hermetically and fixedly connected to the lifting plate 31 (for example, by integral fixed connection, by bolt and seal ring fixed connection, etc.).

[0060] Refer to 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 coalescence filter element 3 move longitudinally synchronously.

[0061] Refer to 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 outer shell 1 by bolts, and the top plate 12 is provided with a threading hole for the sling 313 to pass through; the top end of the sling 313 is connected to the winch 3131 and the bottom end is connected to the lifting plate 31. The winch 3131 is provided with at least four (corresponding to installing four slings 313, respectively pulling the outer edge positions of the lifting plate 31), so as to realize the uniform driving of the lifting plate 31 and avoid jamming due to eccentric load. The lifting plate 31 is a circular plate, and the bottom connection positions of the four slings 313 are evenly arranged at equal intervals and equal angles along the outer edge of the lifting plate 31.

[0062] Refer to Figure 7 , the lifting structure is a vertically arranged pneumatic push rod 314; the fixed seat of the pneumatic push rod 314 is connected to the inner wall of the outer shell 1 (for example, by bolt fixed connection), and the output shaft of the pneumatic push rod 314 is connected to the lifting plate 31 (for example, by fixed connection). At least three pneumatic push rods 314 are provided, and the three pneumatic push rods 314 are evenly arranged at equal intervals and equal angles along the inner wall of the second housing 102, so as to realize the uniform driving of the lifting plate 31 and avoid jamming due to eccentric load.

[0063] Refer to Figure 1, the gas-liquid separation coalescer further includes a water collection chamber 4, which is installed at the bottom end of the first housing 101 of the housing 1 (for example, sealed and fixedly connected by bolts and sealing rings), and the inner cavity of the water collection chamber 4 communicates with the bottom end of the first cavity. The gas-liquid separation coalescer is used vertically, and a frame structure (such as a support frame composed of steel pipes) needs to be arranged around it during use to prevent the gas-liquid separation coalescer from tipping over; the frame structure is a conventional existing technology in the industry, and its specific structure will not be elaborated here.

[0064] Refer to Figure 2 And Figure 3 , there are several dust removal filters 2, coalescing filters 3 and first through holes respectively, and the dust removal filters 2, coalescing filters 3 and first through holes are arranged in one-to-one correspondence; the inner cavities of the corresponding coalescing filters 3 and dust removal filters 2 communicate with each other through the corresponding first through holes.

[0065] Refer to Figure 2 And Figure 8 , there are several dust removal filters 2, and the dust removal filter 2 includes a central filter 21 installed at the center of the bottom surface of the partition plate 103 and an outer peripheral filter 22 installed on the outer periphery of the central filter 21; in order to form a swirl, the gas-liquid mixture needs to be injected at the edge position of the first cavity, and in order to prevent the dust removal filter 2 from hindering the formation of the swirl, the dust removal filter 2 cannot be arranged at the outer edge of the first cavity, that is, both the central filter 21 and the outer peripheral filter 22 are arranged in the middle of the partition plate 103. And some of the gas-liquid mixture in the swirl needs to flow laterally inward under the action of air pressure to enter the first through hole, so impurities and particles are more likely to accumulate on the outer side of the outer peripheral filter 22, thus forming an impurity accumulation area 221. The density of the impurity particles in the impurity accumulation area 221 gradually increases, which will cause the air permeability of the dust removal filter 2 to decrease, resulting in a gradual increase in the air pressure in the first cavity (when the air pressure in the first cavity gradually increases, the dust removal filter 2 will be compressed and contracted into a shriveled shape, reducing its air permeability and further accelerating the speed of air pressure increase), causing damage to the housing 1 and the dust removal filter 2; moreover, the gas-liquid mixture contains moisture, and the moisture 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 removal filter 2. When the moisture content in the subsequent gas-liquid mixture decreases, the viscous impurity particles adhering to the surface of the dust removal filter 2 will form a crust and it is difficult to fall off under the scouring of the liquid flow formed by the self-weight of the coalesced liquid, so additional centrifugal force is required to assist the dropping of the impurity particles.

[0066] Refer to Figure 9 , the outer peripheral filter 22 is arranged in a circumferential array with the central filter 21 as the center, and the distance between the outer peripheral filter 22 and the central filter 21 is 0.2 to 0.4 times the radius of the partition plate 103, so as to realize the concession of the outer peripheral filter 22 to the swirl.

[0067] Refer to Figure 9, there is one central filter element 21 and six peripheral filter elements 22, so there are seven coalescing filter elements 3, first through holes, and water permeable holes 312, thereby increasing the instantaneous flow rate of the coalesced liquid.

[0068] Referring to Figure 8 With Figure 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 impurity particles, thereby avoiding the problem of the gradually increasing air pressure in the first cavity; and, the working area of the peripheral filter element 22 is increased (that is, the entire 360 degrees of the side wall of the peripheral filter element 22 can perform the filtering operation, rather than only 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 frequently replacing / cleaning the peripheral filter element 22.

[0069] Referring to Figure 10 , the gas-liquid separation coalescer further includes a driving assembly 5 for driving the rotation of the peripheral filter element 22, and the driving assembly 5 is installed at the bottom edge position of the partition plate 103.

[0070] Referring to Figures 10 to 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 at the bottom surface position 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 side wall of the peripheral filter element 22 and fixedly connected, the inner side wall of the first gear ring 52 meshes with the outer side wall of the second gear ring 53 through a tooth structure, and the outer side wall of the second gear ring 53 is connected to the first housing 101 through the second bearing 54; a bevel gear structure 531 is provided on the bottom surface of the second gear ring 53, and a driving gear 551 is provided at the end of the output shaft of the driving motor 55, the driving gear 551 is a bevel gear, and the driving gear 551 meshes with the bevel gear structure 531.

[0071] Referring to Figure 12 , the housing of the driving motor 55 is fixedly installed on the outer side wall position of the first housing 101 through bolts; the driving motor 55 is horizontally arranged, 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 water contact and short circuit.

[0072] Referring to Figure 14, the first bearing 51 includes a first inner ring 511 and a first outer ring 512 that can rotate relative to each other. 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 side wall of the outer peripheral filter element 22 and fixedly connected (for example, connected by bolts and seals). The first outer ring 512 is fixedly connected to the bottom surface of the partition plate 103 (for example, fixedly connected by bolts and seals). Since the outer peripheral filter element 22 needs to rotate, there is inevitably a gap between the outer peripheral filter element 22 and the partition plate 103. The first inner ring 511 is sleeved on the outer periphery of this gap, so as to prevent the gas-liquid mixture from flowing around the outer peripheral filter element 22 through this gap and directly flowing into the aggregation filter element, thereby improving the filtering effect.

[0073] Referring to Figure 15 , the outer 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 at the top of the outer side 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 the inside and outside. An annular installation fin is provided in the middle of the outer side wall of the reinforcing sleeve 223, and a number of screw holes are provided on the installation fin; the first inner ring 511 is pressed against the upper surface of the installation fin and the corresponding installation bolts are screwed into the screw holes on the installation fin, so as to realize the installation of the first inner ring 511 and the outer peripheral filter element 22; the first toothed ring 52 is pressed against the lower surface of the installation fin and the corresponding installation bolts are screwed into the screw holes on the installation fin, so as to realize the installation of the first toothed ring 52 and the outer peripheral filter element 22. The inner support frame is a conventional existing technology in the industry, and its specific structure will not be elaborated.

[0074] The central filter element 21 is directly fixedly installed at the bottom surface position of the partition plate 103 by bolts, which is a conventional existing technology in the industry and will not be elaborated here.

[0075] Referring to 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 position of the water collection chamber 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. When the user opens the third valve body, the impurity particles and water in the water collection chamber 4 can be discharged; closing the third valve body can prevent external air from entering the inside of the housing 1.

[0076] The pneumatic push rod 314 is connected and communicated with the air pipe to realize the supply of gas; a pipe through hole is provided on the side wall of the second housing 102, and the air pipe passes through the pipe through hole and is hermetically connected (for example, realized by using a seal ring); the outer end of the air pipe is connected and communicated with an air pump, so as to realize the driving of the pneumatic push rod 314.

[0077] On the side walls of the first housing 101 and the second housing 102, there are respectively provided door openings, and a door body capable of opening and closing is installed in the door openings (for example, opening and closing are achieved through a rotating shaft and a spring catch), and the door body and the door opening are press-connected through a sealing strip. When the user opens the door body, the dust removal filter element 2 and the coalescing filter element 3 can be installed and replaced. There is a transparent glass window on the door body, and the user can observe through the glass window whether the dust removal filter element 2 is cleaned.

[0078] Referring to Figure 16 , the gas-liquid separation coalescer further includes a separation filter element 6. The separation filter element 6 has a structure of a cover 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 moving space for the coalescing filter element 3); the outer edge of the bottom end of the separation filter element 6 is fixedly installed at the inner wall position of the second housing 102 (for example, fixedly connected by bolts). The separation filter element 6 is made of a water-repellent material, which can limit the moisture in the middle and lower part of the second cavity and prevent water molecules from escaping, thereby further enhancing the water removal effect.

[0079] A method for adjusting a gas-liquid separation coalescer, that is, the steps for adjusting the gas-liquid separation coalescer include: S1. Close the first valve body to stop the injection of the gas-liquid mixture; S2. Start the drive motor 55, drive the outer 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 close the drive motor 55; S3. Open the first valve body and start the injection of the gas-liquid mixture.

[0080] The inner wall of the first housing 101 is provided with a pressure sensor to detect the pressure in the first cavity in real time, so as to judge whether the outer peripheral filter element 22 needs to be rotationally adjusted or backwashed.

[0081] A backwashing method for a gas-liquid separation coalescer, that is, the steps for backwashing the gas-liquid separation coalescer include: A1. Close the first valve body to stop the injection of the gas-liquid mixture; A2. Open the drive motor 55 and start the drive assembly 5 to drive the outer peripheral filter element 22 to rotate; A3. Start the lifting structure to lift 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 coalesced liquid flows through the water permeable holes 312 and the first through holes and then enters the inner cavity of the dust removal filter element 2; during the rotation of the outer peripheral filter element 22, the coalesced liquid inside can be thrown out, and at the same time, the impurity particles adhered to the outer peripheral filter element 22 are removed; the coalesced liquid in the central filter element 21 flows out under the action of its own weight, and at the same time, the impurity particles adhered to the central filter element 21 are removed; A4. Stop the operation of the drive assembly 5; A5. The lifting structure lowers the lifting plate 31, and when the lifting plate 31 is pressed against the partition plate 103, stop the operation of the lifting structure; A6. Open the first valve body and start the injection of the gas-liquid mixture.

[0082] When the self - weights 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 produce bouncing (the air pressure exerts an upward thrust on the coalescing filter element 3, and the coalescing filter element 3 transmits the pulling force to the lifting plate 31, resulting in bouncing), that is, a temporary gap is generated between the lifting plate 31 and the partition plate 103. The gas - liquid mixture will flow directly into the second cavity through the temporary gap and the water - permeable holes 312 to bypass the coalescing filter element 3, resulting in a decline in the gas - liquid separation effect of the present invention. To avoid such problems: an inner concave portion is provided on the bottom surface of the lifting plate 31, and a magnetic attraction block is fixedly installed in the inner concave portion (for example, fixedly connected by bolts). The magnetic attraction block can adsorb the partition plate 103, thereby increasing the sealing performance when the lifting plate 31 and the partition plate 103 are press - fitted, and avoiding the bouncing of the lifting plate 31 under the action of air pressure; or a pneumatic push rod 314 is used to continuously press the lifting plate 31, thereby increasing the sealing performance when the lifting plate 31 and the partition plate 103 are press - fitted, and avoiding the bouncing of the lifting plate 31 under the action of air pressure.

[0083] The partition plate 103 is made of an iron - containing metal material (such as 45 steel), and the magnetic attraction block is made of a permanent magnetic material (such as aluminum - nickel - cobalt - based permanent magnetic alloy, iron - chromium - cobalt - based permanent magnetic alloy, permanent ferrite, etc.). A film (such as a plastic waterproof film) is coated on the surface of the partition plate 103 to reduce rust; a rubber sealing layer is provided on the bottom surface of the lifting plate 31 to increase the press - fit sealing performance and avoid scratching the film on the surface of the partition plate 103. The magnetic attraction 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 avoiding the magnetic attraction block from scratching the film on the surface of the partition plate 103. The rubber sealing layer is provided with an adapted hole at the position corresponding to the water - permeable hole 312, thereby avoiding the water - permeable hole 312 from being blocked.

[0084] The present invention further includes an electrical cabinet, which is fixedly installed on the outer side 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 respectively connected to an external power supply and an external computer through wires and signal lines, and the computer controls the start - 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.

[0085] Refer to Figure 1 , the dust - removing filter element 2 is in an inverted conical or inverted frustum - shaped, which is conducive to the falling of impurity particles.

[0086] The structure of the present invention is simple and the function is reliable. The gas - liquid mixture first forms a swirl in the first cavity to remove large - volume impurity particles, and then flows through the dust - removing filter element 2 to remove medium - and small - volume impurity particles, avoiding the impurity particles from blocking the coalescing filter element 3 and ensuring the air permeability of the coalescing filter element 3. Then, the air pressure in the first cavity will not suddenly increase, protecting the coalescing filter element 3 from damage.

[0087] In the prior art, 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 floor area of the device. Integrating the dust removal filter element 2, the coalescing filter element 3 and the first cavity for forming a swirl into one device can make the present invention have a smaller footprint, reduce the floor area during storage, transportation and installation, and improve the convenience of use.

[0088] After the functions of the present invention are integrated, since the dust removal filter element 2 needs to make way for the swirl, an impurity accumulation area 221 will be formed outside the outer peripheral filter element 22; and the outer peripheral filter element 22 can point the impurity accumulation area 221 inward by rotating, that is, make the relatively clean side of the outer peripheral filter element 22 face outward and perform the filtering operation on the impurity particles, thereby increasing the service life of the outer peripheral filter element 22, reducing the cleaning / replacement frequency, and improving the efficiency of production operations.

[0089] In the prior art, it is necessary to open the pre-filter to clean / replace the dust removal filter element 2. However, after the pre-filter is opened, outside air will flow into the gas-liquid separation device through the pipeline. Therefore, after maintenance, it is necessary to inject some gas-liquid mixture to discharge the internal air. Since the gas product obtained by this operation is mixed with outside air, it cannot be used as a qualified product and needs to be discarded, resulting in waste of materials. The present invention can backwash the dust removal filter element 2 without opening the door body, thus avoiding the inflow of outside air and further avoiding waste of materials.

[0090] In the prior art, the coalesced liquid is usually directly discharged through the drain hole in the side wall of the housing 1. Cleaning the filter element in the pre-filter requires additional use of outside water source, and the coalesced liquid is produced by the coalescence effect and has a high purity, resulting in waste. The present invention uses the coalesced liquid to clean the dust removal filter element 2, without introducing outside water source, can achieve the effect of water saving, and since there is no introduction of outside impurities (impurities in the outside water source and outside air), the problem of reduction in the purity of the gas product can be avoided, meeting the cleaning requirements and improving the product quality. When the dust removal filter element 2 is repeatedly rinsed until it cannot be used, the user opens the door body to replace the dust removal filter element 2.

[0091] Since the gas-liquid mixture flows from the outside to the inside of the dust removal filter element 2, most of the impurity particles adhere to the outer surface of the dust removal filter element 2. Therefore, using the coalesced water for backwashing from the inside to the outside has a better cleaning effect; and at the same time of backwashing, the outer peripheral filter element 22 can rotate, so the centrifugal force further accelerates the speed and effect of the impurity particles falling off from the dust removal filter element 2.

[0092] Compared with traditional valve control, the present invention uses a lifting plate 31 to control the storage and discharge of coalesced liquid. Since there are multiple water-permeable holes 312, when discharging the coalesced liquid, a larger instantaneous flow rate of the coalesced liquid can be achieved, so that the coalesced liquid can briefly fill the inner cavity of the outer filter element 22. When the outer filter element 22 rotates, the coalesced liquid will be thrown out from the upper middle part of the side wall of the outer filter element 22, thus avoiding the cleaning blind area in the upper middle part of the side wall of the outer filter element 22.

[0093] In the traditional technology, the user needs to disassemble the pre-filter to clean or replace the filter element inside it, which has the problems of cumbersome maintenance steps, time-consuming and laborious. The present invention uses the coalesced 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, avoiding the problem of frequent disassembly for maintenance.

[0094] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0095] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "install", "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, an electrical connection. It can be a direct connection, or a connection through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0096] In summary, for those skilled in the art, under the guidance of the present invention, without departing from the principle 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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