CN112354249A - Sewage liquid level control system for sewage treatment - Google Patents
Sewage liquid level control system for sewage treatment Download PDFInfo
- Publication number
- CN112354249A CN112354249A CN202011287816.9A CN202011287816A CN112354249A CN 112354249 A CN112354249 A CN 112354249A CN 202011287816 A CN202011287816 A CN 202011287816A CN 112354249 A CN112354249 A CN 112354249A
- Authority
- CN
- China
- Prior art keywords
- control system
- level control
- sewage
- liquid level
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 122
- 239000007788 liquid Substances 0.000 title claims abstract description 88
- 230000017525 heat dissipation Effects 0.000 claims abstract description 15
- 239000004745 nonwoven fabric Substances 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims 2
- 238000012544 monitoring process Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Non-Electrical Variables (AREA)
Abstract
The invention relates to the technical field of sewage treatment, and discloses a sewage liquid level control system for sewage treatment, which comprises a fixed plate and a liquid level control system box, wherein the upper surface of the fixed plate is fixedly connected with a guide pipe, the inner wall of the guide pipe is movably connected with a first piston and a second piston, the inner walls of the first piston and the second piston are fixedly connected with supporting blocks, the outer walls of the two supporting blocks are fixedly connected with a plurality of fixing rods together, the outer wall at the bottom end of the guide pipe is provided with a liquid inlet, and the outer wall at the bottom end of the guide pipe is fixedly connected with. The invention can effectively prevent the sewage level control system from being corroded and damaged by sewage, improves the use effect of the sewage level control system, simultaneously improves the monitoring accuracy of the monitoring end of the sewage level control system, also can effectively improve the heat dissipation efficiency of the sewage level control system, and avoids the damage of the sewage level control system due to high temperature, thereby improving the service life and the working stability of the sewage level control system.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a sewage level control system for sewage treatment.
Background
Sewage treatment is a process of purifying sewage to meet the requirement of discharging the sewage into a certain water body or reusing the sewage, and is widely applied to various fields of buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like.
Through retrieval, the Chinese patent with the authorization number of CN210340411U discloses an anti-blocking air pressure liquid level control system of a sewage lifting box, which comprises a box body and a controller, wherein the box body is provided with a water inlet, a drainage mechanism and a liquid level transmitter, the drainage mechanism comprises two water outlet pipes, a collecting pipe and two water pumps, the two water outlet pipes are arranged in parallel, one part of each water outlet pipe extends into the low position in the box body, and the other part of each water outlet pipe is connected with the collecting pipe outside the box body;
through retrieval, the Chinese patent with the grant number of CN205959083U discloses a liquid level control system for small and medium-sized sewage treatment stations, wherein a medium in a water storage tank is used as a conduction signal, a conductive sponge transmits each feedback signal to a DC12V relay module for decomposition and amplification, an integrated switching signal is transmitted to a PLC (programmable logic controller) for controlling equipment, and the liquid level of a measured medium is used for controlling the running state of related equipment;
through retrieval, chinese patent with grant number CN206975517U discloses a sewage pool liquid level control system, which comprises a power module: the sewage tank liquid level control system is used for supplying power to the sewage tank liquid level control system; a data acquisition module: the device is used for detecting the liquid level in the sewage tank and outputting a detection signal; a display unit: the liquid level display device is used for receiving the detection signal and displaying the liquid level value; a data processing module: the device is used for receiving the detection signal, processing the detection signal and outputting a processing signal; a driving module: the device is used for receiving the processing signal and controlling the execution module to work; an execution module: comprises a water delivery pump and a water delivery pipe, and is used for pumping sewage to a sewage pool;
the above patent has the following problems;
firstly, the liquid level meter is easily corroded and damaged in sewage, the service life and the monitoring accuracy of the liquid level meter are influenced, and even the sewage in a sewage tank overflows to influence the use effect of a sewage liquid level control system;
second, electronic equipment such as controller in the liquid level control system case leads to its heat dissipation capacity great all day work, and the louvre radiating efficiency of liquid level control system case is lower, leads to the liquid level control system case to damage because of high temperature easily, influences liquid level control system's stability in use.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, a liquid level meter is easily corroded and damaged in sewage to influence the service life and the monitoring accuracy of the liquid level meter, and a liquid level control system box is easily damaged due to high temperature because the heat dissipation efficiency of a heat dissipation hole of the liquid level control system box is low.
In order to achieve the purpose, the invention adopts the following technical scheme:
a sewage liquid level control system for sewage treatment comprises a fixed plate and a liquid level control system box, wherein the upper surface of the fixed plate is fixedly connected with a guide pipe, the inner wall of the conduit is movably connected with a first piston and a second piston, the inner walls of the first piston and the second piston are fixedly connected with supporting blocks, the outer walls of the two supporting blocks are fixedly connected with a plurality of fixing rods together, a liquid inlet is arranged on the outer wall of the bottom end of the conduit, a filtering net cover is fixedly connected with the outer wall of the bottom end of the conduit, the inner wall of the filter screen cover is fixedly connected with a non-woven fabric filter layer, the inner wall of the top end of the guide pipe is fixedly connected with a fixing ring, the inner wall of the fixing ring is fixedly connected with a distance sensor, the output end of the distance sensor is in signal connection with the input end of the liquid level control system box, and the upper surface of the liquid level control system box is fixedly connected with a heat dissipation mechanism.
Preferably, the heat dissipation mechanism includes the miniature pump of being connected with surface fixed on the liquid level control system case, the fixed intercommunication of the end of giving vent to anger of miniature pump has the connecting pipe, the bottom of connecting pipe and the fixed intercommunication of the lateral wall of liquid level control system case, a plurality of fixed orificess have been seted up to the bottom lateral wall of liquid level control system case, and the pore wall fixedly connected with check valve of fixed orificess, the activity of inlet end of miniature pump has cup jointed the gauze cover, the outer wall fixed tying of gauze cover has connect fixed rope.
Preferably, the upper surface of the liquid level control system box is fixedly connected with a plurality of supporting rods, and the upper surfaces of the supporting rods are fixedly connected with a baffle plate together.
Preferably, the top outer wall of pipe articulates there is the apron, the data line fluting has been seted up to the lateral wall of apron, the lower fixed surface of apron is connected with the dog, the lateral wall fixed connection of dog has the block rubber, the outer wall of block rubber and the inner wall swing joint of pipe.
Preferably, the four corners of the upper surface of the fixing plate are provided with mounting holes.
Preferably, the opposite sides of the two supporting blocks are fixedly connected with a foam block together.
Compared with the prior art, the invention provides a sewage liquid level control system for sewage treatment, which has the following beneficial effects:
1. the sewage level control system for sewage treatment is provided with a first piston, a second piston, a conduit and a distance sensor, when a sewage tank is filled with sewage, firstly, a fixing plate is fixed at the bottom of the sewage tank, then, the sewage enters the sewage tank, the sewage is firstly filtered by a filter screen and a non-woven fabric filter layer, the sewage without large particles enters the conduit through a liquid inlet after being filtered, the sewage jacks up the second piston along the inner wall of the conduit, the second piston enables the first piston to move upwards through a supporting block and a fixing rod, the liquid level in the conduit and the liquid level of the sewage tank are ensured to be at the same height through the communicating vessel principle, after the first piston reaches the warning position of the distance sensor close to the distance sensor, the distance sensor sends a signal to a controller in a liquid level control system box, and then the controller timely performs corresponding treatment, and closes a sewage pump and a sewage filling valve, in addition, the distance sensor is not in contact with sewage and cannot be damaged by sewage corrosion, the distance sensor can work normally, the mechanism can effectively prevent the sewage liquid level control system from being damaged by sewage corrosion, the using effect of the sewage liquid level control system is improved, and meanwhile, the monitoring accuracy of the monitoring end of the sewage liquid level control system is improved.
2. This sewage liquid level control system for sewage treatment, through being provided with miniature pump, check valve and gauze cover, when sewage liquid level control system case work, at first start miniature pump, miniature pump makes the outside air carry the sewage liquid level control system incasement through the connecting pipe after the gauze cover filters, accelerate the flow of air in the sewage liquid level control system incasement, make its inside heat along with the air discharge from check valve department, accelerate the incasement radiating rate of sewage liquid level control system, avoid its inside electron device to damage because of high temperature, this mechanism can effectively improve sewage liquid level control system's radiating efficiency, avoid sewage liquid level control system to damage because of high temperature, thereby sewage liquid level control system's life and job stabilization nature have been improved.
The device has the advantages that the parts which are not involved in the device are the same as or can be realized by adopting the prior art, the invention can effectively prevent the sewage liquid level control system from being corroded and damaged by sewage, the use effect of the sewage liquid level control system is improved, the monitoring accuracy of the monitoring end of the sewage liquid level control system is improved, the heat dissipation efficiency of the sewage liquid level control system can also be effectively improved, the damage of the sewage liquid level control system due to high temperature is avoided, and the service life and the working stability of the sewage liquid level control system are improved.
Drawings
FIG. 1 is a schematic structural diagram of a sewage level control system for sewage treatment according to the present invention;
FIG. 2 is a schematic structural diagram of a portion A of a sewage level control system for sewage treatment according to the present invention;
FIG. 3 is a schematic structural diagram of a portion B of a sewage level control system for sewage treatment according to the present invention;
fig. 4 is a schematic structural diagram of a part C of a sewage level control system for sewage treatment according to the present invention.
In the figure: the device comprises a fixing plate 1, a liquid level control system box 2, a conduit 3, a first piston 4, a second piston 5, a supporting block 6, a fixing rod 7, a liquid inlet 8, a heat dissipation mechanism 9, a miniature inflator pump 91, a connecting pipe 92, a one-way valve 93, a gauze cover 94, a fixing rope 95, a filter screen cover 10, a non-woven fabric filter layer 11, a fixing ring 12, a distance sensor 13, a supporting rod 14, a baffle 15, a cover plate 16, a stop block 17, a rubber block 18 and a foam block 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Embodiment 1 as shown in fig. 1 and 3-4, the sewage level control system for sewage treatment comprises a fixed plate 1 and a level control system box 2, wherein a conduit 3 is fixedly connected to the upper surface of the fixed plate 1, a first piston 4 and a second piston 5 are movably connected to the inner wall of the conduit 3, supporting blocks 6 are fixedly connected to the inner walls of the first piston 4 and the second piston 5, a plurality of fixing rods 7 are fixedly connected to the outer walls of the two supporting blocks 6, a liquid inlet 8 is formed in the outer wall of the bottom end of the conduit 3, a filter screen 10 is fixedly connected to the outer wall of the bottom end of the conduit 3, a non-woven fabric filter layer 11 is fixedly connected to the inner wall of the filter screen 10, a fixing ring 12 is fixedly connected to the inner wall of the top end of the conduit 3, a distance sensor 13 is fixedly connected to the inner wall of the, the upper surface of the liquid level control system box 2 is fixedly connected with a heat dissipation mechanism 9.
As shown in fig. 1-2, in embodiment 2, based on embodiment 1, the heat dissipation mechanism 9 of the heat dissipation device includes a micro inflator 91 fixedly connected to the upper surface of the liquid level control system box 2, a connection pipe 92 is fixedly connected to an air outlet end of the micro inflator 91, a bottom end of the connection pipe 92 is fixedly connected to a side wall of the liquid level control system box 2, a plurality of fixing holes are formed in a bottom side wall of the liquid level control system box 2, a one-way valve 93 is fixedly connected to a hole wall of each fixing hole, a gauze cover 94 is movably sleeved on an air inlet end of the micro inflator 91, and a fixing rope 95 is fixedly tied to an outer wall of the gauze cover 94.
In the invention, when a sewage pool is filled with sewage, firstly, a fixed plate 1 is fixed at the bottom of the sewage pool, then the sewage enters the sewage pool, the sewage is firstly filtered by a filter screen cover 10 and a non-woven fabric filter layer 11, the filtered sewage without large particles enters a conduit 3 through a liquid inlet 8, the sewage jacks up a second piston 5 along the inner wall of the conduit 3, the second piston 5 enables a first piston 4 to move upwards through a supporting block 6 and a fixed rod 7, the liquid level in the conduit 3 and the liquid level in the sewage pool are ensured to be at the same height through a communicating device principle, and after the first piston 4 approaches a distance sensor 13 and reaches an alarm position of the distance sensor 13, the distance sensor 13 sends a signal to a controller in a liquid level control system box 2, then the controller timely performs corresponding treatment, a sewage pump and a sewage filling valve are closed, so that the sewage can be prevented from being continuously filled into the sewage pool, the sewage is prevented from overflowing out of the sewage pool, in addition, the distance sensor 13 is not contacted with the sewage and cannot be corroded and damaged by the sewage, the normal work of the distance sensor 13 is ensured, the mechanism can effectively prevent the sewage liquid level control system from being corroded and damaged by the sewage, the using effect of the sewage liquid level control system is improved, the monitoring accuracy of the monitoring end of the sewage liquid level control system is improved, when the sewage liquid level control system box 2 works, the micro air pump 91 is started firstly, the micro air pump 91 enables the outside air to be filtered by the gauze cover 94 and then conveyed into the sewage liquid level control system box 2 through the connecting pipe 92, the air flow in the sewage liquid level control system box 2 is accelerated, the internal heat is discharged from the one-way valve 93 along with the air, the heat dissipation speed in the sewage liquid level control system box 2 is accelerated, the internal electronic devices are prevented from being damaged due to high temperature, and the mechanism can effectively improve the heat dissipation, the damage of the sewage liquid level control system due to high temperature is avoided, so that the service life and the working stability of the sewage liquid level control system are improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a sewage liquid level control system for sewage treatment, includes fixed plate (1) and liquid level control system case (2), its characterized in that, the last fixed surface of fixed plate (1) is connected with pipe (3), the inner wall swing joint of pipe (3) has first piston (4) and second piston (5), the inner wall of first piston (4) and second piston (5) all fixedly connected with supporting shoe (6), two the outer wall of supporting shoe (6) is fixed connection with a plurality of dead levers (7) jointly, inlet (8) have been seted up to the bottom outer wall of pipe (3), the bottom outer wall fixedly connected with of pipe (3) filters screen panel (10), the inner wall fixedly connected with non-woven fabrics filter layer (11) of filter screen panel (10), the top inner wall fixedly connected with solid fixed ring (12) of pipe (3), the inner wall fixedly connected with distance sensor (13) of solid fixed ring (12), the output and the input signal connection of liquid level control system case (2) of distance sensor (13), the last fixed surface of liquid level control system case (2) is connected with heat dissipation mechanism (9).
2. The sewage liquid level control system for sewage treatment according to claim 1, wherein the heat dissipation mechanism (9) comprises a micro inflator pump (91) fixedly connected with the upper surface of the liquid level control system box (2), the air outlet end of the micro inflator pump (91) is fixedly communicated with a connecting pipe (92), the bottom end of the connecting pipe (92) is fixedly communicated with the side wall of the liquid level control system box (2), the bottom side wall of the liquid level control system box (2) is provided with a plurality of fixing holes, the hole wall of each fixing hole is fixedly connected with a one-way valve (93), the air inlet end of the micro inflator pump (91) is movably sleeved with a gauze cover (94), and the outer wall of the gauze cover (94) is fixedly tied with a fixing rope (95).
3. The sewage level control system for sewage treatment as claimed in claim 1, wherein a plurality of support rods (14) are fixedly connected to the upper surface of the liquid level control system box (2), and a baffle (15) is fixedly connected to the upper surfaces of the plurality of support rods (14) together.
4. The sewage liquid level control system for sewage treatment according to claim 1, wherein a cover plate (16) is hinged to the outer wall of the top end of the conduit (3), a data line slot is formed in the side wall of the cover plate (16), a stop block (17) is fixedly connected to the lower surface of the cover plate (16), a rubber block (18) is fixedly connected to the side wall of the stop block (17), and the outer wall of the rubber block (18) is movably connected with the inner wall of the conduit (3).
5. The sewage level control system for sewage treatment as claimed in claim 1, wherein mounting holes are formed at four corners of the upper surface of the fixing plate (1).
6. A sewage level control system for sewage treatment according to claim 1, wherein a foam block (19) is fixedly connected to the opposite sides of the two support blocks (6) together.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011287816.9A CN112354249A (en) | 2020-11-17 | 2020-11-17 | Sewage liquid level control system for sewage treatment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011287816.9A CN112354249A (en) | 2020-11-17 | 2020-11-17 | Sewage liquid level control system for sewage treatment |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112354249A true CN112354249A (en) | 2021-02-12 |
Family
ID=74515151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011287816.9A Withdrawn CN112354249A (en) | 2020-11-17 | 2020-11-17 | Sewage liquid level control system for sewage treatment |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112354249A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117950428A (en) * | 2024-03-26 | 2024-04-30 | 沈阳麦凯思电源科技研究院有限公司 | Cloud-based liquid level surface automatic control system and control method |
-
2020
- 2020-11-17 CN CN202011287816.9A patent/CN112354249A/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117950428A (en) * | 2024-03-26 | 2024-04-30 | 沈阳麦凯思电源科技研究院有限公司 | Cloud-based liquid level surface automatic control system and control method |
CN117950428B (en) * | 2024-03-26 | 2024-05-28 | 沈阳麦凯思电源科技研究院有限公司 | Cloud-based liquid level surface automatic control system and control method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN211799985U (en) | Spray tower with prevent blockking up function | |
CN112354249A (en) | Sewage liquid level control system for sewage treatment | |
CN206941708U (en) | A kind of fluid level control device for pumping plant cistern | |
CN211726772U (en) | Cleaning equipment | |
CN209852020U (en) | Bus air conditioner condensate water recycling system | |
CN210710713U (en) | Oil unloading system of railway oil tank car | |
CN209521848U (en) | A kind of complete hidden exhaust system of deeper vacuum sewage collecting peculiar to vessel | |
CN105256858B (en) | Water delivery device, rainwater collection system and exhaust method thereof | |
CN208162203U (en) | A kind of portable liquid cooling pipeline washing device | |
CN109508047A (en) | A kind of level of ground water control water pump remote controllers with anti-overtemperature function | |
CN214331023U (en) | Movable hydraulic oil source | |
CN210106197U (en) | Water leakage alarm vertical centrifugal pump | |
CN112160396A (en) | Vacuum well equipment cavity water collecting and draining device | |
CN203916372U (en) | Wash haze machine | |
CN208235671U (en) | A kind of sewage vacuum collection device | |
CN112141994A (en) | Oil unloading system of railway oil tank car | |
CN206477409U (en) | Water pressurizer | |
CN213952417U (en) | Vacuum well equipment cavity water collecting and draining device | |
CN100496670C (en) | Washing machine special for porous ceramic filtering plate of ceramic filter | |
CN213233753U (en) | Integrated sewage lifting device | |
CN221778496U (en) | Automatic water pumping device for water collecting pit | |
CN218805727U (en) | Multifunctional car washer | |
CN213490924U (en) | Uropoiesis surgery laparoscopic surgery lavage liquid collection device | |
CN218379557U (en) | Integrated coupling tank | |
CN219311050U (en) | Collect multiple waste liquid equipment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
WW01 | Invention patent application withdrawn after publication | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210212 |