CN220951430U - Aeration device and biochemical barrel - Google Patents
Aeration device and biochemical barrel Download PDFInfo
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- CN220951430U CN220951430U CN202322381094.9U CN202322381094U CN220951430U CN 220951430 U CN220951430 U CN 220951430U CN 202322381094 U CN202322381094 U CN 202322381094U CN 220951430 U CN220951430 U CN 220951430U
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- barrel
- air outlet
- pipe
- air
- outlet pipe
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- 238000005273 aeration Methods 0.000 title claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000945 filler Substances 0.000 abstract description 24
- 241000894006 Bacteria Species 0.000 abstract description 7
- 230000001079 digestive effect Effects 0.000 abstract description 7
- 230000033001 locomotion Effects 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000005276 aerator Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
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- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The application provides an aeration device and a biochemical barrel, wherein the aeration device comprises: an aeration pipe; the first air outlet pipe group and the second air outlet pipe group are communicated with the air conveying cavity, the first air outlet pipe group and the second air outlet pipe group are symmetrical with respect to the aeration pipe, the first air outlet pipe group and the second air outlet pipe group jet air to the bottom of the barrel body through the air outlet holes, and materials in the barrel body move along the bottom of the barrel body to the inner wall facing the air outlet holes through the air output by the air outlet holes; when the main air inlet pipe is used for introducing air into the aeration pipe, the first air outlet pipe group and the second air outlet pipe group are used for simultaneously discharging air, biological fillers are conveyed to the barrel wall along the barrel bottom of the biological barrel, and move upwards along the barrel wall after reaching the barrel wall, so that the biological fillers in the biochemical barrel form circular reciprocating motion, the biological fillers at the bottom of the biochemical barrel are ensured to move uniformly to the barrel wall, regular aeration is carried out in the biochemical barrel, and the biological fillers roll over regularly, so that the growth and propagation of digestive bacteria of the biochemical barrel are facilitated, and the water quality treatment efficiency is improved.
Description
Technical Field
The application relates to a biochemical barrel, in particular to an aeration device and a biochemical barrel.
Background
The biochemical barrel is a core component especially for industrial circulating water culture, the existing biochemical barrel is provided with an open-pore air pipe or a nano-aeration pipe at the bottom only by using aeration, or the barrel body is provided with the open-pore air pipe or the nano-aeration pipe, so that the aeration mode is more messy, the filler is enabled to roll irregularly, the growth and propagation of digestive bacteria of the biochemical barrel are not facilitated, and the water quality treatment efficiency is reduced. The growth of digestive bacteria in biological fillers, the need for proper and regular movement, and proper dissolved oxygen, and the aeration mode are also the directions for improvement.
Disclosure of utility model
The embodiment of the application provides an aeration device and a biochemical barrel, which are used for solving the problems of the related technology, and the technical scheme is as follows:
In a first aspect, an embodiment of the present application provides an aeration apparatus, including:
the aeration pipe is used for being paved on the inner bottom surface of the barrel body and is provided with an air delivery cavity;
The first air outlet pipe group is communicated with the air conveying cavity, and the air outlet holes of the first air outlet pipe group face the inner wall of the barrel body;
The first air outlet pipe group and the second air outlet pipe group jet air to the bottom of the barrel body through the air outlet holes, and materials in the barrel body move along the bottom of the barrel body to the inner wall facing the air outlet holes through the air output by the air outlet holes;
The main air inlet pipe is communicated with the air delivery cavity of the aerator pipe, and the air inlet end of the main air inlet pipe is connected with external air delivery equipment.
In one embodiment of the present invention, in one embodiment,
The middle point of the aeration pipe coincides with the middle point of the bottom of the barrel body, and the joint of the main air inlet pipe and the aeration pipe is positioned at the middle point of the aeration pipe, so that the first air outlet pipe group and the second air outlet pipe group uniformly outlet air.
In one embodiment of the present invention, in one embodiment,
The air outlet hole of the first air outlet pipe is arranged at a position which is inclined by 30-45 degrees towards one side of the corresponding barrel wall;
the air outlet hole of the second air outlet pipe is arranged at a position which is inclined downwards by 30-45 degrees towards one side of the corresponding barrel wall.
In one embodiment of the present invention, in one embodiment,
The air inlet end of the main air inlet pipe is positioned outside the barrel body, and a plurality of bending parts are arranged on the air inlet end of the main air inlet pipe.
In a second aspect, an embodiment of the present application provides a biochemical tub, including:
An aeration device as in any one of the above embodiments; and
The bucket body, the aeration pipe is laid in the bottom of bucket body, and main intake pipe is installed on the bucket body.
In one embodiment of the present invention, in one embodiment,
The top of the barrel body is penetrated with a water diversion pipe, one end of the water diversion pipe is a water inlet, the other end of the water diversion pipe is plugged by a plugging block, one side of the water diversion pipe facing the inner cavity of the barrel body is provided with a plurality of water outlet holes, and the water outlet holes are communicated with a water delivery cavity of the water diversion pipe.
In one embodiment of the present invention, in one embodiment,
One side of the barrel body is provided with a water outlet pipe assembly which is communicated with the inner cavity of the barrel body, the joint of the water outlet pipe assembly and the barrel body is positioned at the bottom of the barrel body, and the water outlet pipe fitting is provided with a three-way pipe.
In one embodiment of the present invention, in one embodiment,
The bottom of staving is installed the hang plate, and the low level of hang plate corresponds with the water inlet of outlet pipe subassembly, installs the supporting shoe on the hang plate, is connected with the bottom on the supporting shoe, and the aeration pipe is laid on the bottom, is equipped with the filtration pore in the bottom.
In one embodiment of the present invention, in one embodiment,
One side of the barrel body is provided with a liquid level pipe which is communicated with the inner cavity of the barrel body and used for observing the working water level in the barrel body, and the liquid level pipe is positioned at the position of the top of the side wall of the barrel body, which is deviated downwards.
In one embodiment of the present invention, in one embodiment,
The bottom of the barrel body is provided with a plurality of heat pump connectors which are communicated with the inner cavity of the barrel body.
The advantages or beneficial effects in the technical scheme at least comprise:
The first air outlet pipe group faces the barrel wall of the barrel body, the second air outlet pipe group faces the barrel wall of the barrel body, when the main air inlet pipe is used for introducing air into the aeration pipe, the first air outlet pipe group and the second air outlet pipe group are used for simultaneously discharging air, biological fillers are conveyed to the barrel wall along the barrel bottom of the biological barrel, move upwards along the barrel wall after reaching the barrel wall, fall back to the center of the biochemical barrel after reaching a certain height, enable the biological fillers in the biochemical barrel to form cyclic reciprocating motion, and ensure that the biological fillers at the bottom of the biochemical barrel uniformly move to the barrel wall by limiting the positions of the air outlet holes on the first air outlet pipe group and the second air outlet pipe group, so that regular aeration is carried out in the biochemical barrel, the biological fillers roll over regularly, the growth and propagation of digestive bacteria of the biochemical barrel are facilitated, and the water quality treatment efficiency is improved.
The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will become apparent by reference to the drawings and the following detailed description.
Drawings
In the drawings, the same reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily drawn to scale. It is appreciated that these drawings depict only some embodiments according to the disclosure and are not therefore to be considered limiting of its scope.
FIG. 1 is a schematic view of an aeration apparatus according to the present utility model;
FIG. 2 is a schematic diagram of a biochemical barrel according to the present utility model;
FIG. 3 is a schematic cross-sectional structure of the biochemical tub of FIG. 2;
FIG. 4 is a schematic view of a connection structure between the bottom cover and the aerator pipe in FIG. 3;
FIG. 5 is a schematic view of the bottom cover of FIG. 4;
in the figure: 100. an aeration device;
110. An aeration pipe; 111. a first outlet tube group; 112. a second outlet tube group; 113. a main air inlet pipe; 1131. an air inlet end;
200. A biochemical barrel;
210. A tub body; 211. a water diversion pipe; 212. a water outlet hole; 213. an inclined plate; 214. a support block; 215. a bottom cover; 216. filtering holes; 217. a water permeable membrane;
220. a water outlet pipe assembly; 221. a three-way pipe;
230. A liquid level pipe;
240. And a heat pump connection port.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
Fig. 1 to 3 show a structural view of an aeration apparatus 100 according to an embodiment of the present application. As shown in fig. 1 to 3, the aeration apparatus 100 may include:
The aerator pipe 110, the aerator pipe 110 is used for being laid on the inner bottom surface of the barrel 210, and the aerator pipe 110 is provided with an air transmission cavity;
The first air outlet pipe group 111, the first air outlet pipe group 111 is communicated with the air conveying cavity, and the air outlet holes of the first air outlet pipe group 111 face the inner wall of the barrel body 210;
The second air outlet pipe group 112, the second air outlet pipe group 112 is communicated with the air conveying cavity, the air outlet hole of the second air outlet pipe group 112 faces the inner wall of the barrel body 210, the first air outlet pipe group 111 and the second air outlet pipe group 112 are symmetrical with respect to the air aeration pipe 110, the first air outlet pipe group 111 and the second air outlet pipe group 112 jet air to the bottom of the barrel body 210 through the air outlet hole, and the material in the barrel body 210 moves along the bottom of the barrel body 210 towards the inner wall facing the air outlet hole through the air output by the air outlet hole;
The main air inlet pipe 113, the main air inlet pipe 113 is communicated with the air delivery cavity of the aerator pipe 110, and the air inlet end 1131 of the main air inlet pipe 113 is connected with external air delivery equipment.
In this embodiment, the barrel body 210 is the barrel body 210 of the biochemical barrel 200, the aeration pipe 110 is used to convey the gas into the first air outlet pipe set 111 and the second air outlet pipe set 112, the first air outlet pipe set 111 faces the barrel wall of the barrel body 210, the second air outlet pipe set 112 faces the barrel wall of the barrel body 210, when the main air inlet pipe 113 is used to introduce the gas into the aeration pipe 110, the first air outlet pipe set 111 and the second air outlet pipe set 112 simultaneously give out air, the biological filler is conveyed along the barrel bottom of the biological barrel to the barrel wall, moves upwards along the barrel wall after reaching the barrel wall, and falls back to the center of the biochemical barrel 200 after reaching a certain height, so that the biological filler in the biochemical barrel 200 forms cyclic reciprocating motion, and the positions of the air outlet holes on the first air outlet pipe set 111 and the second air outlet pipe set 112 are limited, so that the biological filler at the bottom of the biochemical barrel 200 is guaranteed to uniformly move to the barrel wall, so that the inside of the biochemical barrel 200 is aerated regularly, the biological filler is rolled regularly, the digestive bacteria growth of the biochemical barrel 200 is facilitated, and the water quality treatment efficiency is improved;
After materials are added into the biochemical barrel 200, a valve on the main air inlet pipe 113 is opened, air enters the aeration pipe 110 through the main air inlet pipe 113, water and biological filler at the bottom of the biochemical barrel 200 are pushed to the side wall along the bottom of the biochemical barrel 200 through the first air outlet pipe group 111 and the second air outlet pipe group 112 on the aeration pipe 110, the biological filler moves upwards along the side wall to a certain height after reaching the side wall and falls into the center of the biochemical barrel 200, and the biological filler is pushed again through the first air outlet pipe group 111 and the second air outlet pipe group 112 to form circulation.
As shown in fig. 1, in one embodiment,
The middle point of the aeration tube 110 coincides with the middle point of the bottom of the tub 210, and the connection of the main air inlet tube 113 and the aeration tube 110 is located at the middle point of the aeration tube 110, so that the first air outlet tube group 111 and the second air outlet tube group 112 uniformly outlet air.
In this embodiment, the first air outlet tube set 111 and the second air outlet tube set 112 are symmetrical with respect to the center of the biochemical barrel 200, and the connection of the main air inlet tube 113 and the aeration tube 110 is located at the center of the biochemical barrel 200, so that when the main air inlet tube 113 is filled with air, the air inlet amount and the air outlet amount of the first air outlet tube set 111 and the second air outlet tube set 112 are the same, and the biological filler in the biochemical barrel 200 can uniformly move to the barrel walls at both sides.
As shown in fig. 1, in one embodiment,
The air outlet hole of the first air outlet pipe is arranged at a position which is inclined by 30-45 degrees towards one side of the corresponding barrel wall;
the air outlet hole of the second air outlet pipe is arranged at a position which is inclined downwards by 30-45 degrees towards one side of the corresponding barrel wall.
In this embodiment, the air outlet hole is 0.2mm, the most preferred angle of the air outlet hole of the first air outlet pipe group 111 is 30 ° downward toward one side corresponding to the barrel wall, and the most preferred angle of the air outlet pipe of the second air outlet pipe group 112 is 30 ° downward toward one side corresponding to the barrel wall, so that the bio-filler at the barrel bottom of the biochemical barrel 200 can be pushed while air is fed to the barrel bottom of the biochemical barrel 200, so that the bio-filler moves to the barrel wall, so that the bio-filler in the bio-barrel forms a circulation.
As shown in fig. 1, in one embodiment,
The air inlet end 1131 of the main air inlet pipe 113 is located outside the barrel 210, and a plurality of bending parts are arranged on the air inlet end 1131 of the main air inlet pipe 113.
In this embodiment, the air inlet end 1131 of the main air inlet pipe 113 is provided with a plurality of bends, so that the pipeline is prevented from breaking or deforming during operation in the design of the industrial pipeline, and the quality and the service life of the pipeline are best ensured.
Fig. 2 to 5 are block diagrams showing the structure of a biochemical tub 200 according to an embodiment of the present utility model. As shown in fig. 2 to 5, the biochemical tub 200 may include:
an aeration device 100 as in any one of the above embodiments; and
The tub 210, the aerator pipe 110 is laid at the bottom of the tub 210, and the main air inlet pipe 113 is installed on the tub 210.
In this embodiment, the aeration pipe 110 is laid at the bottom of the barrel 210, so as to change the aeration mode in the barrel 210, so that uniform aeration can be performed in the barrel 210, and the biological filler in the barrel 210 is circulated, which is beneficial to the growth and propagation of digestive bacteria in the biochemical barrel 200, and improves the water quality treatment efficiency.
As shown in fig. 2, in one embodiment,
The top of the barrel 210 is penetrated with a water diversion pipe 211, one end of the water diversion pipe 211 is a water inlet, the other end is plugged by a plugging block, one side of the water diversion pipe 211 facing the inner cavity of the barrel 210 is provided with a plurality of water outlet holes 212, and the water outlet holes 212 are communicated with a water delivery cavity of the water diversion pipe 211.
In this embodiment, when water is needed to be added into the biochemical barrel 200, water entering the biochemical barrel 200 enters the water diversion pipe 211 from the water inlet of the water diversion pipe 211, and is sprayed at a plurality of positions through the water outlet 212 formed in the water diversion pipe 211 to form a diversion, so as to increase the dissolved oxygen in the biochemical barrel 200.
As shown in fig. 2, in one embodiment,
One side of the barrel body 210 is provided with a water outlet pipe assembly 220, the water outlet pipe assembly 220 is communicated with the inner cavity of the barrel body 210, the joint of the water outlet pipe assembly 220 and the barrel body 210 is positioned at the bottom of the barrel body 210, and a three-way pipe 221 is arranged on a water outlet pipe fitting.
In this embodiment, by arranging the three-way pipe 221 on the water outlet pipe assembly 220, the safe water level of the barrel body 210 is limited, the survival of the digestive bacteria of the biochemical barrel 200 is ensured, the three-way pipe 221 is connected with the water outlet pipe, when the water level in the barrel body 210 needs to be limited, the valve on the water delivery pipe is opened, and the redundant water is discharged through the three-way pipe 221, so that the safety of the water level in the barrel body 210 is ensured.
As shown in fig. 3, in one embodiment,
The bottom of staving 210 installs inclined plate 213, and the low level of inclined plate 213 corresponds with the water inlet of outlet pipe subassembly 220, installs supporting shoe 214 on the inclined plate 213, is connected with bottom 215 on the supporting shoe 214, and aeration pipe 110 lays on bottom 215, is equipped with filter screen 216 in the bottom 215.
In this embodiment, water in the barrel 210 enters the lower part of the bottom cover 215 through the filtering holes 216, enters the water inlet of the water outlet pipe assembly 220 through the inclined plate 213, and can avoid the biological filler in the biochemical barrel 200 from falling into the water outlet pipe assembly 220 through the arrangement of the filtering holes 216, and ensure that the water outlet pipe assembly 220 can limit the water level in the barrel 210, the bottom cover 215 is provided with the water permeable film 217, and the water permeable film 217 covers the filtering holes 216 to filter the biological filler in the barrel 210.
As shown in fig. 2, in one embodiment,
One side of the tub 210 is provided with a liquid level pipe 230, the liquid level pipe 230 is communicated with the inner cavity of the tub 210, and is used for observing the working water level in the tub 210, and the liquid level pipe 230 is located at a position below the top of the side wall of the tub 210.
In this embodiment, the liquid level in the tub 210 can be observed through the liquid level pipe 230, and the water level in the tub 210 can be regulated and controlled through the water outlet pipe assembly 220.
As shown in fig. 2, in one embodiment,
A plurality of heat pump connection ports 240 are formed in the bottom of the barrel body 210, and the heat pump connection ports 240 are communicated with the inner cavity of the barrel body 210.
In this embodiment, the heat pump is connected to the heat pump interface, so as to heat the water in the barrel 210 to achieve the purpose of controlling the temperature and keeping the temperature.
The functions of each module in each device of the embodiments of the present utility model may be referred to the corresponding descriptions in the above methods, and are not described herein again.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that various changes and substitutions are possible within the scope of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (10)
1. An aeration device, comprising:
the aeration pipe is used for being paved on the inner bottom surface of the barrel body and is provided with an air transmission cavity;
The first air outlet pipe group is communicated with the air transmission cavity, and the air outlet holes of the first air outlet pipe group face the inner wall of the barrel body;
The first air outlet pipe group and the second air outlet pipe group jet air to the bottom of the barrel body through the air outlet holes, and materials in the barrel body move along the bottom of the barrel body towards the inner wall of the air outlet holes through the air output by the air outlet holes;
The main air inlet pipe is communicated with the air delivery cavity of the aeration pipe, and the air inlet end of the main air inlet pipe is connected with external air delivery equipment.
2. An aeration device according to claim 1, wherein,
The middle point of the aeration pipe coincides with the middle point of the bottom of the barrel body, and the joint of the main air inlet pipe and the aeration pipe is positioned at the middle point of the aeration pipe, so that the first air outlet pipe group and the second air outlet pipe group uniformly outlet air.
3. An aeration device according to claim 1, wherein,
The air outlet hole of the first air outlet pipe is arranged at a position which is 30-45 degrees lower towards one side of the corresponding barrel wall;
the air outlet hole of the second air outlet pipe is arranged at a position which is 30-45 degrees lower towards one side of the corresponding barrel wall.
4. An aeration device according to claim 1, wherein,
The air inlet end of the main air inlet pipe is positioned outside the barrel body, and a plurality of bending parts are arranged on the air inlet end of the main air inlet pipe.
5. A biochemical tub, comprising:
An aeration device according to any one of claims 1 to 4; and
The bucket body, the aeration pipe is laid in the bottom of bucket body, and main intake pipe installs on the bucket body.
6. A biochemical tub according to claim 5, characterized in that,
The top of staving wears to be equipped with the shunt tubes, the one end of shunt tubes is the water inlet, and the other end passes through the shutoff piece and blocks off, a plurality of apopore has been seted up on the one side of shunt tubes towards staving inner chamber, the apopore communicates with each other with the water delivery chamber of shunt tubes.
7. A biochemical tub according to claim 5, characterized in that,
One side of the barrel body is provided with a water outlet pipe assembly which is communicated with the inner cavity of the barrel body, the joint of the water outlet pipe assembly and the barrel body is positioned at the bottom of the barrel body, and the water outlet pipe assembly is provided with a three-way pipe.
8. A biochemical tub according to claim 7, characterized in that,
The bottom of staving is installed the hang plate, the low level of hang plate corresponds with the water inlet of outlet pipe subassembly, install the supporting shoe on the hang plate, be connected with the bottom on the supporting shoe, the aeration pipe is laid on the bottom is covered, be equipped with the filtration pore in the bottom.
9. A biochemical tub according to claim 5, characterized in that,
One side of the barrel body is provided with a liquid level pipe which is communicated with the inner cavity of the barrel body and used for observing the working water level in the barrel body, and the liquid level pipe is positioned at the position of the lower top of the side wall of the barrel body.
10. A biochemical tub according to claim 5, characterized in that,
The bottom of the barrel body is provided with a plurality of heat pump connectors, and the heat pump connectors are communicated with the inner cavity of the barrel body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322381094.9U CN220951430U (en) | 2023-09-01 | 2023-09-01 | Aeration device and biochemical barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322381094.9U CN220951430U (en) | 2023-09-01 | 2023-09-01 | Aeration device and biochemical barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220951430U true CN220951430U (en) | 2024-05-14 |
Family
ID=91022365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322381094.9U Active CN220951430U (en) | 2023-09-01 | 2023-09-01 | Aeration device and biochemical barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220951430U (en) |
-
2023
- 2023-09-01 CN CN202322381094.9U patent/CN220951430U/en active Active
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