CN219239385U - Mixed liquid undercurrent reflux unit - Google Patents
Mixed liquid undercurrent reflux unit Download PDFInfo
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- CN219239385U CN219239385U CN202222382557.9U CN202222382557U CN219239385U CN 219239385 U CN219239385 U CN 219239385U CN 202222382557 U CN202222382557 U CN 202222382557U CN 219239385 U CN219239385 U CN 219239385U
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The utility model provides a mixed liquid subsurface flow reflux device, which comprises a shell, wherein a plurality of sewage treatment systems are arranged in the shell from top to bottom in sequence, each sewage treatment system comprises an anaerobic zone, an anoxic zone, an aerobic zone, a rear anoxic zone and a rear aerobic zone, a liquid inlet pipe is arranged on the shell, the liquid inlet pipe is communicated with the anaerobic zone, the anaerobic zone is communicated with the anoxic zone, the anoxic zone is communicated with the aerobic zone, the aerobic zone is communicated with the rear anoxic zone, and the aerobic zones are respectively communicated with the anoxic zone through reflux devices; a liquid outlet pipe is arranged on the shell and is communicated with the rear aerobic zone; the reflux device comprises a reflux plate and a plurality of reflux components, wherein the reflux plate is arranged on the aerobic zone, and the reflux components are arranged on the reflux plate. According to the mixed liquid subsurface flow reflux device disclosed by the utility model, the refluxed mixed liquid is basically not contacted with the atmosphere, and no water falls exist, so that oxygen in the air cannot be carried in the reflux process.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, and particularly relates to a mixed liquid subsurface flow reflux device.
Background
At present, along with the continuous enhancement of the emphasis on environmental pollution in China, the requirements on sewage treatment are more and more stringent, the requirements on TN removal are enhanced by a plurality of sewage treatment plants, the AO denitrification process is mostly adopted, the mixed liquor reflux also becomes the necessary design of a plurality of sewage treatment plants, and because the mixed liquor reflux quantity is larger, the channel reflux becomes the form selected by a plurality of AO processes for facilitating construction and saving cost, the influence on denitrification caused by reflux reoxygenation is often ignored in the design, so that a plurality of carbon sources are consumed, and the denitrification effect of a system is also reduced.
Disclosure of Invention
In view of the above, the present utility model aims to provide a mixed liquor subsurface flow reflux device, so as to reduce the influence of reoxygenation of the mixed liquor in the reflux process, thereby influencing the denitrification efficiency of the anoxic tank.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
a mixed liquid subsurface flow reflux device comprises a shell, a plurality of sewage treatment systems which are sequentially arranged from top to bottom are arranged in the shell,
the sewage system comprises an anaerobic zone, an anoxic zone, an aerobic zone, a rear anoxic zone and a rear aerobic zone, a liquid inlet pipe is arranged on the shell and communicated with the anaerobic zone,
the anaerobic zone is communicated with the anoxic zone, the anoxic zone is communicated with the aerobic zone, the aerobic zone is communicated with the rear anoxic zone, and the aerobic zone is respectively communicated with the anoxic zone through a reflux device;
a liquid outlet pipe is arranged on the shell and is communicated with the rear aerobic zone;
the reflux device comprises a reflux plate and a plurality of reflux components, wherein the reflux plate is arranged on the aerobic zone, and the reflux components are arranged on the reflux plate.
Further, the reflux assembly comprises a reflux pipe and a submerged reflux pump, wherein the reflux pipe is arranged on the reflux plate, one end of the reflux pipe is communicated with the anoxic zone, and the other end of the reflux pipe is communicated with the aerobic zone through the submerged reflux pump.
Further, the bottom of back flow is equipped with first baffle, and a plurality of dive backwash pump is installed on the lateral wall of back flow, and the inside of back flow is equipped with the shunt tubes, and shunt tubes bottom is connected with the back flow through first connecting plate, shunt tubes, back flow, first connecting plate formation internal reflux cavity, and the shunt tubes is equipped with the second baffle through the second connecting plate, and the second baffle forms outer reflux cavity with the shunt tubes. The internal reflux cavity is used for enabling the liquid in the aerobic zone pumped by the submerged reflux pump to enter the submerged reflux channel through the internal reflux cavity and then enter the anoxic zone through the reflux outlet.
Further, the one end that the back flow is close to the submerged return canal is installed the filter screen through the boss, be equipped with a plurality of along circumference distribution's the subassembly that lifts by crane on the boss, the position that lifts by crane the subassembly corresponds with the position of submerged return pump, and the one end of submerged return pump is installed on the lateral wall of back flow, and the other end of submerged return pump is connected with the subassembly that lifts by crane, can make submerged return pump and back flow separation through lifting by crane the subassembly.
Further, the submerged reflux pump is provided with an internal reflux check valve.
Further, lifting by crane the subassembly and including lifting by crane the jib, lifting rope, bracing piece, the bracing piece slope sets up on lifting by crane the jib, and the one end that keeps away from lifting by crane the jib of bracing piece is equipped with first pulley, and the upper end of lifting by crane the jib is equipped with the second pulley, is equipped with the I-shaped wheel on the lifting by crane the jib, and the one end of lifting rope is connected with the submerged reflux pump, and the other end of lifting rope is connected with the I-shaped wheel through first pulley and second pulley, is equipped with the handle on the I-shaped wheel, can make lifting by crane the rope and take internal reflux check valve upward movement through handle rotation I-shaped wheel.
Further, the anaerobic zone comprises a first anaerobic zone and a second anaerobic zone, the reflux pipe is communicated with the anoxic zone through a submerged reflux channel, a reflux outlet valve is arranged on the submerged reflux channel, the submerged reflux channel is communicated with the liquid inlet pipe, and the liquid inlet pipe is respectively communicated with the first anaerobic zone and the second anaerobic zone through 2 first water outlets.
Further, the anoxic zone comprises a first anoxic zone and a second anoxic zone, the first anoxic zone is arranged on one side of the anaerobic zone, and the second anoxic zone is arranged at the bottom of the anaerobic zone.
One side of the anaerobic zone is communicated with the first anoxic zone through the second water outlet, and the bottom of the first anoxic zone is communicated with the second anoxic zone through the third water outlet. A drainage plate is arranged in the anoxic zone, and arc-shaped baffles are arranged on two sides of the drainage plate. The anoxic zone can play a role in drainage through the drainage plate and the arc-shaped baffle.
Further, the aerobic zone is arranged at the bottom and one side of the anoxic zone, a plurality of flow pushing plates distributed in a staggered manner are arranged in the aerobic zone, and the flow pushing plates are arranged at one side of the anoxic zone.
The bottom of the anoxic zone is provided with a fourth water outlet which is communicated with the aerobic zone; a fifth water outlet is arranged at one side of the aerobic zone, which is far away from the anoxic zone, and the fifth water outlet is arranged at the upper part of the aerobic zone.
The reflux plate is arranged at one end of the aerobic zone far away from the anoxic zone; one end of the reflux plate is arranged on the plug flow plate, and the other end of the reflux plate is arranged on the aerobic zone.
The submerged reflux channel is arranged above the aerobic zone and the anoxic zone and is communicated with the anoxic zone through a reflux outlet valve.
Further, the rear anoxic zone is arranged at one side of the aerobic zone, a sixth water outlet is arranged at the bottom of the rear anoxic zone and is communicated with the rear aerobic zone, and the rear aerobic zone is communicated with the water outlet pipe.
The rear anoxic zone is internally provided with a vertical plate and an arc anoxic plate, and the arc anoxic plate is arranged on two sides of the vertical plate.
The anaerobic zone is a non-oxygenated zone and no nitrate or nitrite is present. The phosphorus accumulating microorganisms absorb organic matter and release phosphorus in the anaerobic zone.
The anoxic zone and the post anoxic zone are non-oxygenated zones, and the anaerobic zone is provided with a zone where nitrate or nitrite exists.
The aerobic zone and the post-aerobic zone are internally provided with a gas explosion device, the gas explosion device adopts the existing equipment, and microorganisms degrade organic matters and perform nitration reaction in the aerobic zone.
Compared with the prior art, the mixed liquid subsurface flow reflux device provided by the utility model has the following structure
The beneficial effects are that:
1. the device adopts the square backflow canal below the liquid level to backflow the mixed liquid, and the backflow mixed liquid is basically not contacted with the atmosphere, and does not fall off water, so that oxygen in the air cannot be carried in the backflow process.
2. When the submerged reflux pump has a problem, the submerged reflux pump is lifted by the lifting assembly, so that the submerged reflux pump is convenient to maintain subsequently.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of a mixed liquor subsurface flow reflux device according to an embodiment of the utility model;
FIG. 2 is a schematic diagram of a mixed liquor subsurface flow reflux device according to an embodiment of the present utility model;
fig. 3 is a schematic diagram of a reflux assembly of a mixed liquid subsurface flow reflux device according to an embodiment of the utility model.
Reference numerals illustrate:
1. a first anaerobic zone; 2. a second anaerobic zone; 3. a first anoxic zone; 4. a second anoxic zone; 5. an aerobic zone; 6. a rear anoxic zone; 7. a post-aerobic zone; 8. a liquid inlet pipe; 9. a liquid outlet pipe; 10. a housing; 11. a reflow plate; 12. a reflow assembly; 121. a return pipe; 122. a submersible reflux pump; 123. a first baffle; 124. a shunt; 125. a first connection plate; 126. a second connecting plate; 127. a second baffle; 128. an internal reflow cavity; 129. an outer reflow chamber; 13. a filter screen; 14. a lifting assembly; 141. a boom; 142. a lifting rope; 143. a support rod; 15. an internal return check valve; 16. a submerged return channel; 17. a return outlet valve; 18. a first water outlet; 19. a second water outlet; 20. a third water outlet; 21. a drainage plate; 22. an arc baffle; 23. a plug flow plate; 24. a fourth water outlet; 25. a fifth water outlet; 26. a vertical plate; 27. an arc anoxic plate; 28. a sixth water outlet; 29. and a mud inlet pipe.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
The mixed liquid subsurface flow reflux device comprises a shell 10, wherein a plurality of sewage treatment systems which are sequentially arranged from top to bottom are arranged in the shell 10, each sewage treatment system comprises an anaerobic zone, an anoxic zone, an aerobic zone 5, a rear anoxic zone 6 and a rear aerobic zone 7, a liquid inlet pipe 8 is arranged on the shell 10, the liquid inlet pipe 8 is communicated with the anaerobic zone, the anaerobic zone is communicated with the anoxic zone, the anoxic zone is communicated with the aerobic zone 5, the aerobic zone 5 is communicated with the rear anoxic zone 6, and the aerobic zone 5 is respectively communicated with the anoxic zone through reflux devices; the shell 10 is provided with a liquid outlet pipe 9, and the liquid outlet pipe 9 is communicated with the rear aerobic zone 7; the reflux device comprises a reflux plate 11 and a plurality of reflux components 12, wherein the reflux plate 11 is arranged on the aerobic zone 5, and the reflux components 12 are arranged on the reflux plate 11. The reflux assembly 12 comprises a reflux pipe 121 and a submersible reflux pump 122, wherein the reflux pipe 121 is arranged on the reflux plate 11, one end of the reflux pipe 121 is communicated with the anoxic zone, and the other end of the reflux pipe 121 is communicated with the aerobic zone 5 through the submersible reflux pump 122.
The bottom of back flow 121 is equipped with first baffle 123, and a plurality of dive backwash pump 122 is installed on the lateral wall of back flow 121, and the inside of back flow 121 is equipped with shunt tubes 124, and shunt tubes 124 bottom is connected with back flow 121 through first connecting plate 125, and shunt tubes 124, back flow 121, first connecting plate 125 form interior backward flow cavity 128, and shunt tubes 124 are equipped with second baffle 127 through second connecting plate 126, and second baffle 127 forms outer backward flow cavity 129 with shunt tubes 124. The internal reflux cavity 128 is used for enabling the liquid in the aerobic zone 5 pumped by the submerged reflux pump 122 to enter the submerged reflux canal 16 through the internal reflux cavity 128 and then enter the anoxic zone through the reflux outlet. The filter screen 13 is installed through the boss to the one end that the back flow 121 is close to submerged return canal 16, be equipped with a plurality of along the circumferentially distributed hoisting assembly 14 on the boss, hoisting assembly 14's position corresponds with the position of submerged return pump 122, and submerged return pump 122's one end is installed on back flow 121's lateral wall, and submerged return pump 122's the other end is connected with hoisting assembly 14, can make submerged return pump 122 and back flow 121 separation through hoisting assembly 14. The submersible reflux pump 122 is provided with an internal reflux check valve 15. The model of the submersible reflux pump 122 is QJB-W in the prior art, and the power of the submersible reflux pump 122 is from 1.5 to 18.5. The specific model is shown in table 1:
TABLE 1
The lifting assembly 14 comprises a lifting rod 141, a lifting rope 142 and a supporting rod 143, wherein the supporting rod 143 is obliquely arranged on the lifting rod 141, one end, far away from the lifting rod 141, of the supporting rod 143 is provided with a first pulley, the upper end of the lifting rod 141 is provided with a second pulley, the lifting rod 141 is provided with a spool, one end of the lifting rope 142 is connected with the submerged reflux pump 122, the other end of the lifting rope 142 is connected with the spool through the first pulley and the second pulley, a handle is arranged on the spool, and the lifting rope 142 can move upwards with the inner reflux check valve 15 by rotating the spool through the handle. The anaerobic zone comprises a first anaerobic zone 1 and a second anaerobic zone 2, the reflux pipe 121 is communicated with the anoxic zone through a submerged reflux canal 16, a reflux outlet valve 17 is arranged on the submerged reflux canal 16, the submerged reflux canal 16 is communicated with the liquid inlet pipe 8, and the liquid inlet pipe 8 is respectively communicated with the first anaerobic zone 1 and the second anaerobic zone 2 through 2 first water outlets 18.
The anoxic zone comprises a first anoxic zone 3 and a second anoxic zone 4, the first anoxic zone 3 is arranged on one side of the anaerobic zone, and the second anoxic zone 4 is arranged at the bottom of the anaerobic zone. One side of the anaerobic zone is communicated with the first anoxic zone 3 through a second water outlet 19, and the bottom of the first anoxic zone 3 is communicated with the second anoxic zone 4 through a third water outlet 20. A drainage plate 21 is arranged in the anoxic zone, and arc-shaped baffles 22 are arranged on two sides of the drainage plate 21. The anoxic zone can play a role in drainage through the drainage plate 21 and the arc-shaped baffle 22.
The aerobic zone 5 is arranged at the bottom and one side of the anoxic zone, a plurality of flow pushing plates 23 which are distributed in a staggered way are arranged in the aerobic zone 5, and the flow pushing plates 23 are arranged at one side of the anoxic zone. The bottom of the anoxic zone is provided with a fourth water outlet 24 which is communicated with the aerobic zone 5; a fifth water outlet 25 is arranged on one side of the aerobic zone 5 far away from the anoxic zone, and the fifth water outlet 25 is arranged on the upper part of the aerobic zone 5.
The reflux plate 11 is arranged at one end of the aerobic zone 5 far away from the anoxic zone; one end of the reflux plate 11 is arranged on the plug flow plate 23, and the other end of the reflux plate 11 is arranged on the aerobic zone 5. The submerged return channel 16 is arranged above the aerobic zone and the anoxic zone, and the submerged return channel 16 is communicated with the anoxic zone through a return outlet valve 17. The rear anoxic zone 6 is arranged at one side of the aerobic zone 5, the bottom of the rear anoxic zone 6 is provided with a sixth water outlet 28 which is communicated with the rear aerobic zone 7, and the rear aerobic zone 7 is communicated with a water outlet pipe.
A vertical plate 26 and an arc-shaped anoxic plate 27 are arranged in the rear anoxic zone 6, and the arc-shaped anoxic plates 27 are arranged on two sides of the vertical plate 26. The anaerobic zone is a non-oxygenated zone and no nitrate or nitrite is present. The phosphorus accumulating microorganisms absorb organic matter and release phosphorus in the anaerobic zone. The anoxic zone and the post anoxic zone 6 are non-oxygenated zones and the anaerobic zone is provided with a zone where nitrate or nitrite is present. The aerobic zone 5 and the post-aerobic zone 7 are internally provided with gas explosion devices, the gas explosion devices adopt the existing equipment, and microorganisms degrade organic matters and perform nitration reaction in the aerobic zone 5.
Sewage firstly enters an anaerobic zone after water distribution, meanwhile, external reflux sludge (sludge after precipitation in a secondary sedimentation tank) enters the anaerobic zone, a sludge inlet pipe 29 is arranged on the shell 10, the position of the sludge inlet pipe 29 corresponds to that of the submerged reflux channel 16, the sludge after precipitation in the secondary sedimentation tank is communicated with the submerged reflux channel 16 through the sludge inlet pipe 29 on the shell 10, and the sludge flows to the anoxic zone and the anaerobic zone in sequence through the submerged reflux channel 16;
the anaerobic zone is mainly used for anaerobic phosphorus release and adopts a secondary complete mixing type; then enters an anoxic zone, meanwhile, the mixed liquid at the tail end of the aerobic zone 5 is lifted by a submerged reflux pump 122 to enter a reflux well, the mixed liquid is conveyed to the anoxic zone through a submerged reflux channel by means of liquid level difference, and the anoxic zone is mainly used for denitrification by utilizing a raw water carbon source and adopts secondary circulation arrangement; the effluent of the anoxic zone enters an aerobic zone 5, the aerobic zone 5 is mainly used for nitration reaction, and oxidizes organic matters and aerobic phosphorus accumulation, and a gallery plug flow type is adopted; the rear anoxic zone 6 is arranged at the tail end of the aerobic zone 5, and the rear anoxic zone 6 is mainly used for adding a carbon source for further denitrification, and adopts a circulation type; the rear anoxic zone 6 is connected with the rear aerobic zone 7, which is used for maintaining the effluent DO and removing excessive carbon source organic matters, a gallery plug flow type zone is adopted, which is used for maintaining the effluent DO and removing excessive carbon source organic matters, and a gallery plug flow type zone is adopted.
Claims (10)
1. The mixed liquid subsurface flow reflux device is characterized in that: comprises a shell (10), a plurality of sewage treatment systems which are sequentially arranged from top to bottom are arranged in the shell (10),
the sewage system comprises an anaerobic zone, an anoxic zone, an aerobic zone (5), a rear anoxic zone (6) and a rear aerobic zone (7), a liquid inlet pipe (8) is arranged on a shell (10), the liquid inlet pipe (8) is communicated with the anaerobic zone,
the anaerobic zone is communicated with the anoxic zone, the anoxic zone is communicated with the aerobic zone (5), the aerobic zone (5) is communicated with the rear anoxic zone (6), and the aerobic zone (5) is respectively communicated with the anoxic zone through a reflux device;
a liquid outlet pipe (9) is arranged on the shell (10), and the liquid outlet pipe (9) is communicated with the rear aerobic zone (7);
the reflux device comprises a reflux plate (11) and a plurality of reflux components (12), wherein the reflux plate (11) is arranged on the aerobic zone (5), and the reflux components (12) are arranged on the reflux plate (11).
2. The mixed liquor subsurface flow reflux device of claim 1, wherein: the reflux assembly (12) comprises a reflux pipe (121) and a submerged reflux pump (122), the reflux pipe (121) is arranged on the reflux plate (11), one end of the reflux pipe (121) is communicated with the anoxic zone, and the other end of the reflux pipe (121) is communicated with the aerobic zone (5) through the submerged reflux pump (122).
3. A mixed liquor subsurface flow reflux device as recited in claim 2, wherein: the bottom of back flow (121) is equipped with first baffle (123), the lateral wall at back flow (121) is installed to a plurality of dive backwash pump (122), the inside of back flow (121) is equipped with shunt tubes (124), shunt tubes (124) bottom is connected with back flow (121) through first connecting plate (125), shunt tubes (124), back flow (121), first connecting plate (125) form interior backward flow cavity (128), shunt tubes (124) are equipped with second baffle (127) through second connecting plate (126), second baffle (127) and shunt tubes (124) form outer backward flow cavity (129).
4. A mixed liquor subsurface flow reflux device as recited in claim 3, wherein: the one end that back flow (121) is close to submerged return canal (16) is installed filter screen (13) through the boss, be equipped with a plurality of along circumferentially distributed lifting unit (14) on the boss, the position of lifting unit (14) corresponds with the position of submerged return pump (122), and the one end of submerged return pump (122) is installed on the lateral wall of back flow (121), and the other end of submerged return pump (122) is connected with lifting unit (14), can make submerged return pump (122) and back flow (121) separation through lifting unit (14), be equipped with internal reflux check valve (15) on submerged return pump (122).
5. The mixed liquor subsurface flow reflux device of claim 4, wherein: lifting by crane subassembly (14) including lifting by crane jib (141), lifting by crane rope (142), bracing piece (143) slope sets up on lifting by crane jib (141), and the one end of keeping away from lifting by crane jib (141) of bracing piece (143) is equipped with first pulley, and the upper end of lifting by crane jib (141) is equipped with the second pulley, is equipped with the I-shaped wheel on lifting by crane jib (141), and the one end of lifting by crane rope (142) is connected with submerged reflux pump (122), and the other end of lifting by crane rope (142) is connected with the I-shaped wheel through first pulley and second pulley, is equipped with the handle on the I-shaped wheel, can make lifting by crane rope (142) to bring internal reflux check valve (15) upward movement through handle rotation I-shaped wheel.
6. The mixed liquor subsurface flow reflux device of claim 5, wherein: the anaerobic zone comprises a first anaerobic zone (1) and a second anaerobic zone (2), the return pipe (121) is communicated with the anoxic zone through the submerged return channel (16), the submerged return channel (16) is provided with a return outlet valve (17), the submerged return channel (16) is communicated with the liquid inlet pipe (8), and the liquid inlet pipe (8) is respectively communicated with the first anaerobic zone (1) and the second anaerobic zone (2) through 2 first water outlets (18).
7. The mixed liquor subsurface flow reflux device of claim 1, wherein: the anoxic zone comprises a first anoxic zone (3) and a second anoxic zone (4), the first anoxic zone (3) is arranged at one side of the anaerobic zone, and the second anoxic zone (4) is arranged at the bottom of the anaerobic zone;
one side of the anaerobic zone is communicated with the first anoxic zone (3) through a second water outlet (19), and the bottom of the first anoxic zone (3) is communicated with the second anoxic zone (4) through a third water outlet (20); a drainage plate (21) is arranged in the anoxic zone, and arc-shaped baffle plates (22) are arranged on two sides of the drainage plate (21).
8. The mixed liquor subsurface flow reflux device of claim 1, wherein: the aerobic zone (5) is arranged at the bottom and one side of the anoxic zone, a plurality of flow pushing plates (23) which are distributed in a staggered manner are arranged in the aerobic zone (5), and the flow pushing plates (23) are arranged at one side of the anoxic zone;
a fourth water outlet (24) is arranged at the bottom of the anoxic zone and is communicated with the aerobic zone (5); a fifth water outlet (25) is arranged on one side of the aerobic zone (5) far away from the anoxic zone, and the fifth water outlet (25) is arranged on the upper part of the aerobic zone (5).
9. A mixed liquor subsurface flow reflux device as recited in claim 2, wherein: the reflux plate (11) is arranged at one end of the aerobic zone (5) far away from the anoxic zone; one end of the reflux plate (11) is arranged on the plug flow plate (23), and the other end of the reflux plate (11) is arranged on the aerobic zone (5);
the submerged reflux canal (16) is arranged above the aerobic zone and the anoxic zone, and the submerged reflux canal (16) is communicated with the anoxic zone through a reflux outlet valve (17).
10. The mixed liquor subsurface flow reflux device of claim 1, wherein: the rear anoxic zone (6) is arranged at one side of the aerobic zone (5), a sixth water outlet (28) is arranged at the bottom of the rear anoxic zone (6) and is communicated with the rear aerobic zone (7), and the rear aerobic zone (7) is communicated with the water outlet pipe;
a vertical plate (26) and an arc-shaped anoxic plate (27) are arranged in the rear anoxic zone (6), and the arc-shaped anoxic plate (27) is arranged at two sides of the vertical plate (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222382557.9U CN219239385U (en) | 2022-09-07 | 2022-09-07 | Mixed liquid undercurrent reflux unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222382557.9U CN219239385U (en) | 2022-09-07 | 2022-09-07 | Mixed liquid undercurrent reflux unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219239385U true CN219239385U (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222382557.9U Active CN219239385U (en) | 2022-09-07 | 2022-09-07 | Mixed liquid undercurrent reflux unit |
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| Country | Link |
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| CN (1) | CN219239385U (en) |
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2022
- 2022-09-07 CN CN202222382557.9U patent/CN219239385U/en active Active
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