CN218202646U - High-efficient splitter of wide distillate oil and water - Google Patents
High-efficient splitter of wide distillate oil and water Download PDFInfo
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- CN218202646U CN218202646U CN202220396881.3U CN202220396881U CN218202646U CN 218202646 U CN218202646 U CN 218202646U CN 202220396881 U CN202220396881 U CN 202220396881U CN 218202646 U CN218202646 U CN 218202646U
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Abstract
The utility model discloses a high-efficient splitter of wide distillate oil and water, including subsider and coalescer, coalescer and the bottom intercommunication of subsider. The settling tank is provided with a manhole, a reserved pipe orifice, a straight cylinder body, a liquid guide pipe orifice, a liquid separation plate, a light oil connecting pipe, a water phase connecting pipe, a heavy oil connecting pipe and an equipment support, and the coalescer is provided with a feeding pipe orifice, a coalescer seal head, a coalescer core, a coalescer cylinder body and a distribution plate. The utility model discloses solved wide distillate oil and separation of water in-process effectively, equipment is bulky, equipment is in large quantity, the high difficult problem of power consumption, and this equipment has that separation efficiency is high, the back flush is easy, the fault rate is low, operation elasticity is big, dismantle the characteristics that overhaul is convenient, economy and social are showing.
Description
Technical Field
The utility model belongs to the technical field of oil-water separation equipment, concretely relates to high-efficient splitter of wide distillate oil and water.
Background
The pretreatment of raw oil is a key link in oil product processing, and impurities such as salts in the raw oil are usually removed by water injection washing in the process, so that qualified raw oil is supplied for downstream. As an important intermediate product in the coking industry, coal tar can be further deeply processed into fuel oil or a high-value-added chemical product, water injection washing of the raw material before processing is a key process, however, the fraction of the coal tar is relatively wide, and after the coal tar is mixed with water and washed, the oil, water layer and underwater oil can be layered, an emulsification transition layer is formed, and the layering process is very slow.
The common method for oil-water separation in the raw oil pretreatment process comprises the following steps: the method comprises the steps of electric desalting and dewatering, standing and layering, demulsifier filling, oil-water layering acceleration, distillation and the like, however, the method has a series of defects of large equipment volume, high energy consumption, large reagent consumption, easy scaling and corrosion of the equipment and the like.
Therefore, aiming at the raw oil to be pretreated with wide fraction containing heavy components such as coal tar, in the oil-water separation process after water washing, development of equipment capable of accelerating oil-water separation is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-efficient splitter of wide distillate oil and water provides one kind can accelerate oil-water separation's equipment.
The utility model discloses a technical scheme is, a high-efficient splitter of wide distillate oil and water, include:
the settling tank comprises a horizontal straight barrel body, the two ends of the horizontal straight barrel body are respectively a feeding end and a discharging end, the two ends of the straight barrel body are respectively connected with a settling tank seal head, the two ends of the settling tank seal head are respectively provided with an access hole, the interior of the straight barrel body is also connected with a liquid baffle plate perpendicular to the straight barrel body, the side wall of the straight barrel body between the settling tank seal head and the liquid baffle plate at the feeding end is respectively provided with a primary lower side liquid guide pipe orifice, a primary upper side liquid guide pipe orifice and a light oil connecting pipe communicated with the interior of the straight barrel body, and the side wall of the straight barrel body between the settling tank seal head and the liquid baffle plate at the discharging end is respectively provided with a secondary upper side liquid guide pipe orifice, a secondary lower side liquid guide pipe orifice and a water phase connecting pipe and a heavy oil connecting pipe communicated with the interior of the straight barrel body;
the coalescers are provided with a plurality of groups of coalescers which are arranged on the side wall of the straight cylinder body at the same side as the lower side drain pipe orifice of the first stage and are communicated with the inside of the straight cylinder body.
The coalescer comprises a coalescer cylinder body connected with the bottom side of the straight cylinder body, the upper end of the coalescer cylinder body is connected with the straight cylinder body, the coalescer further comprises a coalescer core positioned at the inner side of the straight cylinder body, the inlet of the coalescer core is connected with a distribution plate, the outer edge of the distribution plate is connected with the coalescer cylinder body in a seamless manner, the lower end of the coalescer cylinder body is connected with the upper end of a coalescer flange pair, and the lower end of the coalescer flange pair is sequentially connected with a coalescer seal head and a feed pipe.
The outer diameter of the liquid separation plate is not larger than the inner diameter of the straight cylinder body, the lower side of the liquid separation plate is cut into a straight line, and the arc portion of the liquid separation plate is connected with the inner wall of the straight cylinder body in a seamless mode.
The liquid guide pipe mouth and the first order upside liquid guide pipe mouth and the second grade downside liquid guide pipe mouth are respectively vertically paired one by one and are respectively provided with 1-5 pairs, the axis of the first order downside liquid guide pipe mouth and the lowest point of the liquid separation plate are positioned on the same horizontal line, and the horizontal plane where the axis of the second grade downside liquid guide pipe mouth is positioned is lower than the lowest point of the liquid separation plate.
The top of the straight cylinder body is provided with 1-10 reserved pipe orifices communicated with the interior of the straight cylinder body, and the lower side surface of the straight cylinder body is provided with 2-8 equipment supports.
The light oil connecting pipe, the water phase connecting pipe and the heavy oil connecting pipe all comprise short joints, connecting pipe reducing heads and connecting pipe flanges which are connected in sequence, the light oil connecting pipe, the water phase connecting pipe and the heavy oil connecting pipe are all connected with the short joints, the light oil connecting pipe and the water phase connecting pipe are all communicated with the upper side of the straight cylinder body, and the heavy oil connecting pipe is communicated with the lower side of the straight cylinder body.
The number of the coalescers is 2-6, and the coalescers are horizontally arranged and are respectively communicated with the straight cylinder body.
The length L1 and the inner diameter d1 of the straight cylinder body are respectively 1 m-50 m, 500 mm-5000 mm, the inner diameter d2 of the access hole is 400 mm-1000 mm, the inner diameter d3 of the coalescer cylinder body is 400 mm-4000 mm, and d3 is less than d1.
Length L2 of coalescence core, minimum horizontal segment distance L3 between straight barrel feed end edge and the coalescer barrel, maximum horizontal segment distance L4 between straight barrel discharge end edge and the heavy oil takeover, horizontal segment distance L5 between straight barrel discharge end edge and the partition, maximum horizontal segment distance L6 between straight barrel discharge end edge and the aqueous phase takeover, minimum horizontal segment distance L7 between straight barrel discharge end edge and the light oil takeover, satisfy following constraint: 400 L2 is more than or equal to mm and less than or equal to 5000mm, L3 is more than or equal to 50mm and less than or equal to 500mm, L4 is more than or equal to 200mm and less than L5, L7 is more than or equal to 4000mm, and L6 is more than or equal to 200mm and less than L5.
Vertical height h1 between one-level downside drain mouth of pipe and the one-level upside drain mouth of pipe, vertical height h2 between horizontal outer fringe in partition board bottom and the top outer fringe, vertical height h3 between second grade upside drain mouth of pipe and the second grade downside drain mouth of pipe need satisfy following constraint condition: 0.5d 1-woven cloth-h1-woven cloth-h2-woven cloth-h3 is less than or equal to 0.99d1.
The utility model has the advantages that:
the utility model discloses a high-efficient splitter of wide distillate oil and water, through concentrating on the same equipment with the water droplet coalescence principle and the layering principle of profit gravity on functional material surface and effectively combining the application, make the suspension water droplet in the oil water mixture can coalesce into big water droplet fast, and then show the acceleration oil water separation process, thereby realized the preliminary high-efficient separation of oil water mixture;
the utility model discloses a high-efficiency separation device for wide distillate oil and water, which provides a hardware foundation for the on-line automatic back washing process of the device through the arrangement of a plurality of groups of coalescers, thereby laying a solid foundation for the long-period operation of the device;
the utility model discloses a high-efficient splitter of wide distillate oil and water, the setting of the interior baffle of equipment provides the important condition for oil reservoir, water layer on water and the high-efficient separation and the defeated outward of oil reservoir under water.
Drawings
FIG. 1 is a schematic structural diagram of an efficient separation apparatus for wide distillate oil and water according to the present invention;
fig. 2 is a schematic structural view of a liquid-separating plate on the high-efficiency separation equipment for wide distillate oil and water of the utility model.
In the figure, 100, a settling tank; 200. a coalescer; 1. an access hole; 2. sealing a head of the settling tank; 3. reserving a pipe orifice; 4. a straight cylinder body; 5. a first-stage lower side liquid guide pipe orifice; 6. a primary upper side drainage pipe orifice; 7. a liquid barrier; 8. light oil connecting pipes; 9. a water phase connecting pipe; 10. a secondary upper side drainage pipe orifice; 11. a secondary lower side drainage pipe orifice; 12. heavy oil pipe connection; 13. an equipment support; 81. a short section; 82. connecting pipe reducing heads; 83. a pipe connecting flange; 201. a feed pipe; 202. A coalescer seal head; 203. a coalescing core; 204. a coalescer cylinder; 205. a coalescer flange pair; 206. a distribution plate.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The following examples are only used to illustrate the technical solutions of the present invention more clearly, but the protection solutions of the present invention are not limited thereto.
Example 1
The utility model discloses a high-efficiency separation device for wide distillate oil and water, which is shown in figure 1-2 and comprises a settling tank 100 and a coalescer 200; the settling tank 100 comprises a horizontal straight barrel 4, the two ends of the straight barrel are respectively a feeding end and a discharging end, the two ends of the straight barrel 4 are respectively connected with a settling tank end enclosure 2, the two ends of the settling tank end enclosure 2 are respectively provided with an access hole 1, the inside of the straight barrel 4 is also connected with a liquid baffle plate 7 perpendicular to the straight barrel, the side wall of the straight barrel 4 between the settling tank end enclosure 2 and the liquid baffle plate 7 at the feeding end is respectively provided with a primary lower side liquid guide pipe orifice 5, a primary upper side liquid guide pipe orifice 6 and a light oil connecting pipe 8 communicated with the inside of the straight barrel, and the side wall of the straight barrel 4 between the settling tank end enclosure 2 and the liquid baffle plate 7 at the discharging end is respectively provided with a secondary upper side liquid guide pipe orifice 10, a secondary lower side liquid guide pipe orifice 11, and a water phase connecting pipe 9 and a heavy oil connecting pipe 12 communicated with the inside of the straight barrel; the coalescers 200 are provided with a plurality of groups of coalescers 200 which are arranged on the side wall of the straight cylinder body 4 at the same side with the liquid guide pipe mouth 5 at the lower side of the first stage and are communicated with the inside of the straight cylinder body, 2-6 coalescers 200 are arranged horizontally and are respectively communicated with the straight cylinder body 4, and the arrangement of more than 2 coalescers 200 provides a hardware basis for realizing the on-line switching and on-line back flushing of the coalesced core 203.
Further, the coalescer 200 comprises a coalescer cylinder 204 connected with the bottom side of the straight cylinder 4, the upper end of the coalescer cylinder 204 is connected with the straight cylinder 4, and the coalescer core 203 positioned inside the straight cylinder 4, the inlet of the coalescer core 203 is connected with a distribution plate 206, the outer edge of the distribution plate 206 is seamlessly connected with the coalescer cylinder 204, the lower end of the coalescer cylinder 204 is connected with the upper end of a coalescer flange pair 205, and the lower end of the coalescer flange pair 205 is sequentially connected with a coalescer head 202 and a feed pipe 201.
Further, the outer diameter of the liquid separation plate 7 is not more than the inner diameter of the straight cylinder 4 and the lower side thereof is cut into a straight line; the arc part of the liquid separation plate 7 is connected with the inner wall of the straight cylinder 4 in a seamless way.
The primary lower side liquid guide pipe opening 5, the primary upper side liquid guide pipe opening 6, the secondary upper side liquid guide pipe opening 10 and the secondary lower side liquid guide pipe opening 11 are vertically paired one by one respectively and are respectively provided with 1-5 pairs, the axis of the primary lower side liquid guide pipe opening 5 and the lowest point of the liquid separation plate 7 are positioned on the same horizontal line, and the horizontal plane where the axis of the secondary lower side liquid guide pipe opening 11 is positioned is lower than the lowest point of the liquid separation plate 7; the matched liquid guide pipe orifice is mainly used for dynamically measuring the interface of light oil and water; the multiple pairs of matched liquid guide pipe orifices are mainly used for preventing the error report of instrument faults or the switching and overhauling in the running process.
The first-stage lower side liquid guide pipe orifice 5, the first-stage upper side liquid guide pipe orifice 6, the second-stage upper side liquid guide pipe orifice 10 and the second-stage lower side liquid guide pipe orifice 11 are all communicated with an interface metering instrument, and the interface metering instrument selects one or more of differential pressure type, float type, capacitance type, radio frequency admittance type or radar type.
The top of the straight cylinder body 4 is provided with 1-10 reserved pipe orifices 3 communicated with the inside; 2-8 equipment supports 13 are arranged on the lower side surface of the straight cylinder body 4, and the reserved pipe orifice 3 can be used for installing safety valves, pressure gauges, thermometers and other instruments and meters; the equipment support 13 is favorable for the installation of the equipment and bases such as a matched civil engineering frame.
Example 2
Further, on the basis of embodiment 1, the light oil connection pipe 8, the water phase connection pipe 9, and the heavy oil connection pipe 12 each include a nipple 81, a connection pipe reducer 82, and a connection pipe flange 83, which are connected in sequence, the light oil connection pipe 8, the water phase connection pipe 9, and the heavy oil connection pipe 12 are all connected to the nipple 81, the light oil connection pipe 8 and the water phase connection pipe 9 are all communicated with the upper side of the straight cylinder body 4, and the heavy oil connection pipe 12 is communicated with the lower side of the straight cylinder body 4.
Furthermore, the ranges of the length L1 and the inner diameter d1 of the straight cylinder body 4 are respectively that L1 is more than or equal to 1m and less than or equal to 50m, d1 is more than or equal to 500mm and less than or equal to 5000mm, the range of the inner diameter d2 of the access hole 1 is that d2 is more than or equal to 400mm and less than or equal to 1000mm, the range of the inner diameter d3 of the coalescer cylinder body 204 is that d3 is more than or equal to 400mm and less than or equal to 4000mm, and d3 is less than d1; and the limitation on part of the critical dimension ensures that the whole size of the equipment is within a reasonably controllable range.
Further, the length L2 of the coalescing core 203, the minimum horizontal distance L3 between the end edge of the feeding end of the straight cylinder 4 and the coalescer cylinder 204, the maximum horizontal distance L4 between the end edge of the discharging end of the straight cylinder 4 and the heavy oil connecting pipe 12, the horizontal distance L5 between the end edge of the discharging end of the straight cylinder 4 and the liquid barrier 7, the maximum horizontal distance L6 between the end edge of the discharging end of the straight cylinder 4 and the water connecting pipe 9, and the minimum horizontal distance L7 between the end edge of the discharging end of the straight cylinder 4 and the light oil connecting pipe 8 satisfy the following constraint conditions: l2 is more than or equal to 400mm and less than or equal to 5000mm, L3 is more than or equal to 50mm and less than or equal to 500mm, L4 is more than or equal to 200mm and more than L5, L7 is more than or equal to 4000mm, and L6 is more than or equal to 200mm and more than or equal to L5; and the limitation on part of the critical dimension ensures that the whole size of the equipment is within a reasonably controllable range.
Further, vertical height h1 between one-level downside drain pipe mouth 5 and one-level upside drain pipe mouth 6, vertical height h2 between the horizontal outer fringe in liquid separation plate 7 bottom and the top outer fringe, vertical height h3 between second grade upside drain pipe mouth 10 and second grade downside drain pipe mouth 11 need satisfy following constraint condition: 0.5d1 yarn-woven h1 yarn-woven h2 yarn-woven h3 is less than or equal to 0.99d1; the defined arrangement ensures that the relevant interface level measuring instruments can be arranged in a reasonable area.
The working process is as follows:
after being mixed with washing water, the pressurized raw oil to be treated is distributed into a plurality of parallel pipelines containing feed valves and is respectively detachably communicated with each feed pipe 201, the oil-water mixture is then distributed to a plurality of parallel coalescence cores 203 through the coalescer end enclosure 202, the coalescence cores are rich in functional materials with hydrophobic property, small water drops in the oil-water mixture can be coalesced into large water drops, and thus the gravity settling speed of the water drops in the oil is accelerated.
After flowing out from the coalescence core 203, the oil-water mixed solution containing heavy oil is settled and layered in the settling tank 100, and forms a light oil layer, a water layer and a heavy oil layer from high to low, and the three media are respectively led out of the settling tank 100 through the light oil connecting pipe 8, the water phase connecting pipe 9 and the heavy oil connecting pipe 12.
Through controlling the flow control valve opening on the above-mentioned three takeover outlet pipeline, combine with the interface metering device feedback of one-level downside drain mouth of pipe 5, one-level upside drain mouth of pipe 6, second grade upside drain mouth of pipe 10, second grade downside drain mouth of pipe 11 intercommunication, can realize the steady control at each medium interface in the subsider 100 to ensure that the three kinds of medium purity of being drawn forth are in reasonable scope, and then realized the high-efficient separation of wide distillate oil and water.
In addition, a back washing branch line and a back washing valve are arranged on the pipeline between each feeding pipe 201 and the feeding valve corresponding to the pipe orifice. During operation of the apparatus, the feed valve of a branch upstream of a particular feed pipe 201 may be closed, followed by operation of a corresponding backwash valve of that feed pipe 201 to direct liquid in the settling tank 100 out of the coalescer 200, thereby effecting backwash of the coalescer 200 in that branch. The periodic backwashing of each branch coalescer 200 can be realized through the periodic program setting, so that the periodic self-operated backwashing of all the coalescers 200 in the equipment is realized on the premise of not influencing the stable operation of feeding, and the long-period operation of the whole equipment is further ensured.
The above-mentioned embodiments are only preferred embodiments of the present invention, the protection scope of the present invention is not limited thereto, and any person skilled in the art can obviously obtain simple changes or equivalent replacements of the technical solutions within the technical scope disclosed in the present invention, all of which belong to the protection scope of the present invention.
Claims (10)
1. An efficient separation equipment of wide distillate oil and water is characterized by comprising the following components:
the settling tank (100) comprises a horizontal straight barrel body (4), the two ends of the horizontal straight barrel body are respectively a feeding end and a discharging end, the two ends of the straight barrel body (4) are respectively connected with a settling tank seal head (2), the two ends of the settling tank seal head (2) are respectively provided with an access hole (1), the straight barrel body (4) is also internally connected with a liquid-isolating plate (7) perpendicular to the straight barrel body, the side wall of the straight barrel body (4) between the settling tank seal head (2) and the liquid-isolating plate (7) at the feeding end is respectively provided with a primary lower side liquid guide pipe orifice (5), a primary upper side liquid guide pipe orifice (6) and a light oil connecting pipe (8) communicated with the interior of the straight barrel body, and the side wall of the straight barrel body (4) between the settling tank seal head (2) and the liquid-isolating plate (7) at the discharging end is respectively provided with a secondary upper side liquid guide pipe orifice (10), a secondary lower side liquid guide pipe orifice (11) and a water phase connecting pipe (9) and a heavy oil connecting pipe (12) communicated with the interior of the straight barrel body;
the coalescers (200) are provided with a plurality of groups of coalescers (200) which are arranged on the side wall of the straight cylinder body (4) at the same side with the liquid guide pipe orifice (5) at the lower side of the first level and are communicated with the inside of the straight cylinder body.
2. The high-efficiency separation equipment for the wide distillate oil and the water is characterized in that the coalescer (200) comprises a coalescer cylinder (204) connected with the bottom side of a straight cylinder (4), the upper end of the coalescer cylinder (204) is connected with the straight cylinder (4), the coalescer (203) positioned inside the straight cylinder (4) is further comprised, a distribution plate (206) is connected with the inlet of the coalescer (203), the outer edge of the distribution plate (206) is seamlessly connected with the coalescer cylinder (204), the lower end of the coalescer cylinder (204) is connected with the upper end of a coalescer flange pair (205), and the lower end of the coalescer flange pair (205) is sequentially connected with a coalescer head (202) and a feeding pipe (201).
3. The high-efficiency separation equipment for wide distillate oil and water according to the claim 1, characterized in that, the outer diameter of the liquid separation plate (7) is not larger than the inner diameter of the straight cylinder body (4) and the lower side is cut into a straight line; the arc part of the liquid separation plate (7) is connected with the inner wall of the straight cylinder body (4) in a seamless mode.
4. The high-efficiency separation equipment for wide distillate oil and water according to claim 3, wherein the primary lower liquid guide pipe orifice (5) and the primary upper liquid guide pipe orifice (6) and the secondary upper liquid guide pipe orifice (10) and the secondary lower liquid guide pipe orifice (11) are vertically paired one by one and are respectively provided with 1-5 pairs, the axis of the primary lower liquid guide pipe orifice (5) and the lowest point of the liquid separation plate (7) are located on the same horizontal line, and the axis of the secondary lower liquid guide pipe orifice (11) is located on the horizontal line lower than the lowest point of the liquid separation plate (7).
5. The high-efficiency separation equipment for the wide distillate oil and the water according to the claim 1, characterized in that the top of the straight cylinder body (4) is provided with 1-10 reserved pipe orifices (3) communicated with the inside of the straight cylinder body; the lower side surface of the straight cylinder body (4) is provided with 2-8 equipment supports (13).
6. The high-efficiency separation equipment for wide distillate oil and water, according to claim 1, wherein the light oil connecting pipe (8), the water phase connecting pipe (9) and the heavy oil connecting pipe (12) each comprise a short section (81), a connecting pipe reducing head (82) and a connecting pipe flange (83) which are connected in sequence, the light oil connecting pipe (8), the water phase connecting pipe (9) and the heavy oil connecting pipe (12) are all connected with the short section (81), the light oil connecting pipe (8) and the water phase connecting pipe (9) are all communicated with the upper side of the straight cylinder body (4), and the heavy oil connecting pipe (12) is communicated with the lower side of the straight cylinder body (4).
7. The high-efficiency separation equipment for wide distillate oil and water according to claim 1, characterized in that 2 to 6 coalescers (200) are provided, which are horizontally arranged and are respectively communicated with the straight cylinder body (4).
8. The high-efficiency separation equipment for wide distillate oil and water according to claim 2, characterized in that the length L1 and the inner diameter d1 of the straight cylinder (4) respectively range from 1m to L1 to 50m and from 500mm to d1 to 5000mm, the inner diameter d2 of the manhole (1) ranges from 400mm to d2 to 1000mm, the inner diameter d3 of the coalescer cylinder (204) ranges from 400mm to d3 to 4000mm, and d3 is less than d1.
9. The high-efficiency separation equipment for wide distillate oil and water according to claim 2, characterized in that the length L2 of the coalescence core (203), the minimum horizontal distance L3 between the end edge of the feeding end of the straight cylinder (4) and the coalescer cylinder (204), the maximum horizontal distance L4 between the end edge of the discharging end of the straight cylinder (4) and the heavy oil connecting pipe (12), the horizontal distance L5 between the end edge of the discharging end of the straight cylinder (4) and the liquid-separating plate (7), the maximum horizontal distance L6 between the end edge of the discharging end of the straight cylinder (4) and the water phase connecting pipe (9), and the minimum horizontal distance L7 between the end edge of the discharging end of the straight cylinder (4) and the light oil connecting pipe (8) satisfy the following constraint conditions: l2 is more than or equal to 400mm and less than or equal to 5000mm, L3 is more than or equal to 50mm and less than or equal to 500mm, L4 is more than or equal to 200mm and less than L5, L7 is more than or equal to 4000mm, and L6 is more than or equal to 200mm and less than L5.
10. The high-efficiency separation equipment for the wide distillate oil and the water according to claim 1, wherein the vertical height h1 between the primary lower liquid guide pipe orifice (5) and the primary upper liquid guide pipe orifice (6), the vertical height h2 between the horizontal outer edge at the bottom of the liquid separation plate (7) and the outer edge at the top, and the vertical height h3 between the secondary upper liquid guide pipe orifice (10) and the secondary lower liquid guide pipe orifice (11) satisfy the following constraint conditions: 0.5d 1-woven cloth-h1-woven cloth-h2-woven cloth-h3 is less than or equal to 0.99d1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220396881.3U CN218202646U (en) | 2022-02-25 | 2022-02-25 | High-efficient splitter of wide distillate oil and water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220396881.3U CN218202646U (en) | 2022-02-25 | 2022-02-25 | High-efficient splitter of wide distillate oil and water |
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| CN218202646U true CN218202646U (en) | 2023-01-03 |
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