CN212740772U - Backflow bucket and backflow system - Google Patents
Backflow bucket and backflow system Download PDFInfo
- Publication number
- CN212740772U CN212740772U CN202020760006.XU CN202020760006U CN212740772U CN 212740772 U CN212740772 U CN 212740772U CN 202020760006 U CN202020760006 U CN 202020760006U CN 212740772 U CN212740772 U CN 212740772U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- adjusting plate
- straight cylinder
- adjusting
- straight
- 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.)
- Active
Links
Images
Landscapes
- Catching Or Destruction (AREA)
Abstract
The application provides a backward flow is fought and return-flow system, includes: the first straight cylinder is hollow; the variable diameter cylinder is hollow, is arranged at one end of the first straight cylinder and is connected with the first straight cylinder, and the radial sectional area of the variable diameter cylinder is gradually reduced along the direction far away from the first straight cylinder; the second straight cylinder is hollow, is arranged at one end of the reducing cylinder far away from the first straight cylinder and is connected with the reducing cylinder, and the radial sectional area of the second straight cylinder is smaller than that of the first straight cylinder; the adjusting plate is rotatably arranged in the inner space of the reducing cylinder, and the rotating shaft of the adjusting plate is perpendicular to the axis of the reducing cylinder; and the adjusting device is arranged above the adjusting plate and used for adjusting the rotating angle of the adjusting plate. Through setting up rotatable regulating plate, the regulating plate blocks partly rivers, and adjusting device changes the turned angle of regulating plate, makes the regulation of liquid flow more simple and convenient.
Description
Technical Field
The application relates to the technical field of sewage treatment, particularly, especially, relate to a backward flow is fought and return-flow system.
Background
In water treatment works, there must be liquid transfer operations, and one of them is to collect liquid in a certain area and transfer the collected liquid to another place through a pipeline. For example, scum or sludge on the surface of the liquid is collected and then transferred out of the system; the liquid at the top is collected and directly transferred to the bottom through a pipeline and the like. In order for the system to maintain optimal operating conditions, the amount of liquid transfer must be regulated. In the prior art, a standard valve sold in the market is arranged on a pipeline, and the flow rate of liquid, namely the liquid transfer amount, can be adjusted by adjusting the opening degree of the valve. However, when the pipeline is completely submerged, it is difficult to control the flow of liquid using standard valves. Accordingly, there is a need to develop a device that facilitates control of the flow of fluid through a conduit.
SUMMERY OF THE UTILITY MODEL
The present application is directed to at least solve one of the above technical drawbacks, and provides a backflow bucket and a backflow system, which can effectively control a liquid flow in a pipeline.
The application provides a return flow fill, include:
the first straight cylinder is hollow;
the variable diameter cylinder is hollow, is arranged at one end of the first straight cylinder and is connected with the first straight cylinder, and the radial sectional area of the variable diameter cylinder is gradually reduced along the direction far away from the first straight cylinder;
the second straight cylinder is hollow, is arranged at one end of the reducing cylinder far away from the first straight cylinder and is connected with the reducing cylinder, and the radial sectional area of the second straight cylinder is smaller than that of the first straight cylinder;
the adjusting plate is rotatably arranged in the inner space of the reducing cylinder, and the rotating shaft of the adjusting plate is perpendicular to the axis of the reducing cylinder;
and the adjusting device is arranged above the adjusting plate and used for adjusting the rotating angle of the adjusting plate.
Optionally, the adjusting device includes a pull rope, one end of the pull rope is disposed at one end of the adjusting plate far away from the rotating shaft, and the other end of the pull rope is a free end.
Optionally, the adjusting device further includes a positioning sleeve and a positioning assembly, the positioning sleeve is disposed on the side wall of the first straight cylinder, and the positioning assembly is used for fixing the pull rope in the positioning sleeve.
Optionally, the pull rope is provided with scales.
Optionally, the adjusting plate includes at least two sub adjusting plates, the rotating shaft is disposed on an axis of the reducer cylinder, a hinge is disposed at one end of each sub adjusting plate close to the rotating shaft, and the hinge is connected to the sub adjusting plate and rotatably connected to the rotating shaft, so that the at least two sub adjusting plates rotate around the rotating shaft.
Optionally, the horizontal cross-sectional shapes of the flat plates formed by flattening the at least two sub-adjusting plates are matched with the horizontal cross-sectional shapes of the reducer cylinders in the plane to which the flat plates belong.
Optionally, a stopper is disposed on an inner surface of the reducing cylinder to limit a rotation angle of the adjusting plate.
Optionally, the adjusting plate is provided with a plurality of through holes.
Optionally, a gasket is arranged on one surface of the adjusting plate, which is close to the second straight cylinder.
The application still provides a return-flow system, including biochemical reaction pond, back flow and above-mentioned arbitrary any the backward flow fill, the setting of backward flow fill is in the biochemical reaction pond, the one end setting of back flow is in the backward flow fill below, with the backward flow is fought and is connected, and the other end setting is in biochemical reaction pond bottom for make the liquid reflux that the backward flow was fought extremely biochemical reaction pond bottom.
Compared with the prior art, the beneficial technical effects of the application include:
through the arrangement of the first straight cylinder, the reducer cylinder and the second straight cylinder, the backflow bucket is in a hollow bucket-shaped structure, liquid flow can pass through the backflow bucket from top to bottom, and the liquid flow is collected and flows out of the second straight cylinder. Through setting up rotatable regulating plate, the regulating plate can block partly rivers, utilizes adjusting device to change the turned angle of regulating plate, changes the clearance size that regulating plate and reducing cylinder internal surface can pass through liquid to the liquid flow of the straight section of thick bamboo of control second flows through, makes liquid flow's regulation more simple and convenient.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a cross-sectional view of a return bucket provided in an embodiment of the present application;
FIG. 2 is a cross-sectional view of a return bucket according to another embodiment of the present application;
description of reference numerals:
11-a first straight cylinder; 12-a reducer cylinder; 13-a second straight cylinder;
21-adjusting plate; 22-a rotating shaft; 23-a sub-regulation plate; 24, a hinge; 25-a through hole;
31-a pull rope; 32-positioning the cannula; 33-positioning holes; 34-a positioning nut; 35-a positioning bolt; 36-Cross bar.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Referring to fig. 1, fig. 1 is a cross-sectional view of a return bucket according to an embodiment of the present disclosure.
As shown in fig. 1, the return hopper includes a first straight cylinder 11, a reducer cylinder 12, a second straight cylinder 13, an adjusting plate 21, and an adjusting device, wherein the first straight cylinder 11 is hollow and open at both ends, and may be cylindrical or prismatic. The reducer 12 is hollow and has two open ends, is disposed at one end of the first straight tube 11, and is connected to the first straight tube 11 by welding or detachable connection with the first straight tube 11. One end of the reducing cylinder 12 is matched with the first straight cylinder 11, and the radial sectional area is gradually reduced along the direction far away from the first straight cylinder 11, so that the reducing cylinder is in an inverted cone shape. One end of the reducing cylinder 12, which is far away from the first straight cylinder 11, is provided with a second straight cylinder 13, the second straight cylinder 13 is hollow, two ends of the second straight cylinder are open, and the radial sectional area of the second straight cylinder 13 is smaller than that of the first straight cylinder 11. The inner space of the reducing cylinder 12 is rotatably provided with an adjusting plate 21, the rotating shaft 22 of the adjusting plate 21 is perpendicular to the axis of the reducing cylinder 12, in some embodiments, the adjusting plate may also be provided in the inner space of the first straight cylinder 11 or the second straight cylinder 13, and an end of the adjusting plate 21 away from the rotating shaft 22 is provided with an adjusting device for changing the rotating angle of the adjusting plate 21. The adjusting device comprises a pull rope 31, one end of the pull rope 31 is arranged at one end of the adjusting plate 21 far away from the rotating shaft, and the other end is a free end and can extend out of the backflow bucket for an operator to control. In some embodiments, the pull rope 31 may be equivalently replaced by a chain, a steel wire or the like as long as the control of the adjusting plate 21 is realized. In other embodiments, the first straight tube 11, the variable diameter tube 12 and the second straight tube 13 may be integrally formed to form a single body.
When liquid is collected, the liquid overflows from the upper surface of the first straight cylinder 11 into the first straight cylinder 11, flows down along the inner wall of the first straight cylinder, is collected above the second straight cylinder 13 through the reducing cylinder 12, and when the adjusting plate 21 is in a horizontal state, the liquid flows through between the inner wall of the reducing cylinder 12 and the adjusting plate 21 through the blocking of the adjusting plate 21, then flows through the second straight cylinder 13, and is led to other places through a pipeline below the second straight cylinder 13. The operating personnel is through the stay cord 31 of pulling the regulating plate 21 end, make regulating plate 21 upwards rotate, when loosening stay cord 31, because the density of regulating plate 21 is far greater than liquid, regulating plate 21 falls back naturally under the action of gravity, make regulating plate 21 fix the angle that practical application required through fixed stay cord 31, change the space size that can supply liquid to pass through between regulating plate 21 and the reducer 12 through this kind of mode, thereby the liquid volume that flows in the straight 13 below of control second, realize liquid flow's control.
In the above embodiment, the first straight cylinder 11, the reducer cylinder 12 and the second straight cylinder 13 are arranged, so that the backflow bucket is in a hollow bucket-shaped structure, the liquid flow can pass through the backflow bucket from top to bottom, and the liquid flow is collected and flowed out from the second straight cylinder 13. By arranging the adjusting plate 21 with the rotating shaft 22 rotating, the adjusting plate 21 can limit the amount of the liquid which can pass through the reducing cylinder 12, and the rotating angle of the adjusting plate 21 is changed by the adjusting device, so that the liquid flow passing through the second straight cylinder 13 is controlled, and the adjustment of the liquid flow is simpler and more convenient.
In some embodiments, the first straight tube 11 is a cylinder with an inner diameter
Is composed of
Rice, height H1Is 0<H1Less than or equal to 0.6 m; the second straight cylinder 13 is a cylinder with an inner diameter
Is composed of
Rice, height H2H is more than or equal to 0.052Less than or equal to 0.2 meter; the reducer 12 is a circular reducer, the upper inner diameter of which is matched with the first straight cylinder 11, the lower inner diameter of which is matched with the second straight cylinder 13, and the height of which is H3H is more than or equal to 0.052≤0.2。
Fig. 2 is a cross-sectional view of a backflow bucket provided by another embodiment of the present application, and as shown in fig. 2, in some embodiments, the adjusting device further includes a positioning sleeve 32 and a positioning assembly, the positioning sleeve 32 is hollow and is open at two ends, and is disposed on a side wall of the first straight cylinder 11, an axial direction of the positioning sleeve 32 is parallel to an axial direction of the first straight cylinder 11, and one end of the positioning sleeve 32 extends out of the first straight cylinder 11. Still be provided with horizontal pole 36 in the first straight section of thick bamboo 11, horizontal pole 36 sets up along the axial of first straight section of thick bamboo 11, and both ends are connected with the inner wall of first straight section of thick bamboo 11, are located the top of regulating plate 21 and stay cord 31 junction for supply stay cord 31 to walk around, make stay cord 31 when pulling regulating plate 21, provide one and be close vertical ascending power when stay cord 31 pulling regulating plate 21, pulling regulating plate 21 that can be better. The positioning assembly comprises a positioning hole 33, a positioning nut 34 and a positioning bolt 35, the free end of the pull rope 31 bypasses the cross rod 36 and then passes through the inside of the positioning sleeve 32 from bottom to top, the positioning hole 33 is formed in the side wall of the positioning sleeve 32, and the positioning hole 33 is provided with the positioning nut 34 and the positioning bolt 35 matched with the positioning nut 34. When the flow rate is adjusted, the adjusting plate 21 is moved upwards by pulling the free end of the pull rope 31 penetrating through the upper part of the positioning sleeve 32, the positioning bolt 35 is screwed after the free end reaches a proper position, the positioning bolt 35 passes through the positioning hole 33 and abuts against the pull rope 31 in the positioning sleeve 32, and therefore the pull rope 31 is fixed, and the adjusting plate 21 is fixed at a proper angle.
In some embodiments, the pulling rope 31 is provided with a scale mark (not shown), so that an operator can determine the length of the pulling rope 31 to determine the rotation angle of the adjusting plate 21.
In some embodiments, the adjusting plate 21 includes at least two sub-adjusting plates 23, for example, two sub-adjusting plates 23, a rotating shaft 22 of the sub-adjusting plate 23 is disposed on a diameter of the reducing cylinder 13, a hinge 24 is disposed at an end of the sub-adjusting plate 23 close to the rotating shaft 22, and the hinge 24 is connected to the sub-adjusting plate 23 by a fixed connection such as welding or a detachable connection such as a bolt, which is not limited herein. The hinge 24 is rotatably connected to the rotation shaft 22, and the sub-adjusting plate 23 is rotatably connected to the rotation shaft 22 through the hinge 24 to rotate about the rotation shaft 22. One end of the pull rope 31 connected to the adjusting plate 21 is divided into two branches, which are respectively connected to the two sub-adjusting plates 23 to control the two sub-adjusting plates 23 to rotate together. When the flow rate is required to be adjusted, the two sub adjusting plates 23 are pulled by the pull rope 31 to rotate upwards together, the angle between the two sub adjusting plates 23 is reduced, the gap between the two sub adjusting plates and the reducer cylinder 13 is enlarged, the amount of liquid which can pass through is increased, when the pull rope 31 is loosened, the sub adjusting plates 23 naturally sink under the action of gravity, and when the pull rope is rotated to a horizontal state, the amount of liquid which can pass through is minimum.
In some embodiments, the cross-sectional shape of the plane formed by flattening the two sub-adjusting plates 23 is matched with the cross-sectional shape of the reducer cylinder at the horizontal position of the plane, and because the reducer cylinder is in a shape with a large top and a small bottom, after the sub-adjusting plates 23 are unfolded to the horizontal state, the edges of the sub-adjusting plates 23 are in contact with the inner surface of the reducer cylinder 12, so that the sub-adjusting plates 23 cannot rotate downwards continuously, the gap between the sub-adjusting plates 23 and the inner surface of the reducer cylinder 12 is minimum in the state, the flow of liquid which can pass through is minimum, and an operator only needs to loosen the pull rope to naturally sink the sub-adjusting plates 23 to the limit state when the minimum flow is required to be adjusted, the angle does not need to be adjusted intentionally, and the.
In some embodiments, the inner surface of the reducer cylinder is provided with a stop (not shown in the figure) for limiting the adjustable angle of the adjusting plate 21, the adjusting plate 21 can rotate within the angle limited between the two stop, the position of the stop can be set according to the controllable limit flow of the actual demand, and the stop is used for limiting, so that the problem that the adjusting plate 21 rotates beyond a certain angle to cause overlarge or undersize is avoided.
In some embodiments, the adjusting plate 21 is provided with a plurality of through holes 25 for allowing liquid to pass through, the through holes 25 are uniformly formed in the adjusting plate 21 and may be straight holes or inclined holes, the shape of the through holes 25 may be circular, square, kidney-shaped, and the like, without limitation, and the through holes 25 are provided to prevent the adjusting plate 21 from being damaged or the pull rope 31 from being broken due to too large liquid pressure applied when the adjusting plate 21 limits the flow.
In some embodiments, a spacer (not shown) is disposed on a side of the adjusting plate 21 close to the second straight cylinder 13 to reduce friction when the adjusting plate 21 contacts with the inner surface of the reducer cylinder 12, thereby prolonging the service life of the backflow bucket.
In other embodiments, the adjusting plate 21 may be disposed in the inner space of the first straight cylinder 11 or the second straight cylinder 13 as long as the function of blocking the liquid is achieved. The adjusting plate 21 can also rotate downwards, after the adjusting plate 21 rotates downwards, the gap between the inner surface of the diameter-changing cylinder 12, the inner surface of the first straight cylinder 11 or the inner surface of the second straight cylinder 13 (depending on the position of the adjusting plate) becomes larger, the flow rate of the liquid which can pass through the gap becomes larger, and the adjusting plate 21 is pulled by the pull rope 31 to rotate upwards so as to reduce the gap, thereby realizing the flow rate control.
The embodiment of the application further provides a reflux system, including biochemical reaction pond, back flow and any kind of above-mentioned return hopper, the setting is fought in biochemical reaction pond in the return, and the one end setting of back flow is fought the one end that the second straight section of thick bamboo 13 kept away from reducer 12 in the return, and the other end setting of back flow is in the bottom in biochemical reaction pond. When sewage treatment is carried out, top liquid in the biochemical reaction tank overflows into the backflow hopper, flows to the bottom in the biochemical reaction tank through the backflow hopper and the backflow pipe, and meanwhile, natural backflow of the liquid in the biochemical reaction tank is realized by controlling backflow liquid flow of the backflow hopper, so that a medicament contained in the top liquid is recycled after flowing to the bottom, and the medicament consumption is effectively reduced.
It should be noted that the description of the present application and the accompanying drawings set forth preferred embodiments of the present application, however, the present application may be embodied in many different forms and is not limited to the embodiments described in the present application, which are not intended as additional limitations to the present application, but are provided for the purpose of providing a more thorough understanding of the present disclosure. Moreover, the above-mentioned technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope described in the present specification; further, modifications and variations may occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the scope of the appended claims.
Claims (10)
1. A backflow hopper, comprising:
the first straight cylinder (11), the first straight cylinder (11) is hollow;
the variable diameter cylinder (12) is hollow, is arranged at one end of the first straight cylinder (11) and is connected with the first straight cylinder (11), and the radial sectional area of the variable diameter cylinder (12) is gradually reduced along the direction far away from the first straight cylinder (11);
the second straight cylinder (13) is hollow, is arranged at one end, far away from the first straight cylinder (11), of the reducing cylinder (12), and is connected with the reducing cylinder (12), and the radial sectional area of the second straight cylinder (13) is smaller than that of the first straight cylinder (11);
an adjusting plate (21), wherein the adjusting plate (21) is rotatably arranged in the inner space of the reducing cylinder (12), and a rotating shaft (22) of the adjusting plate is perpendicular to the axis of the reducing cylinder (12);
the adjusting device is arranged above the adjusting plate (21) and used for adjusting the rotating angle of the adjusting plate (21).
2. Return hopper according to claim 1, characterized in that the adjusting device comprises a pull cord (31), wherein one end of the pull cord (31) is arranged at the end of the adjusting plate (21) remote from the rotating shaft (22) and the other end is a free end.
3. The backflow bucket according to claim 2, characterized in that the adjusting device further comprises a positioning sleeve (32) and a positioning assembly, wherein the positioning sleeve (32) is arranged on the side wall of the first straight cylinder (11), and the positioning assembly is used for fixing the pulling rope (31) in the positioning sleeve (32).
4. Return funnel according to claim 2, characterized in that the pull cord (31) is provided with a scale.
5. The backflow bucket according to claim 1, wherein the adjusting plate (21) comprises at least two sub adjusting plates (23), the rotating shaft (22) is arranged on the axis of the reducer cylinder (12), a hinge (24) is arranged at one end of each sub adjusting plate (23) close to the rotating shaft (22), and the hinge (24) is connected with the sub adjusting plate (23) and rotatably connected with the rotating shaft (22) and used for enabling the at least two sub adjusting plates (23) to rotate around the rotating shaft (22).
6. The return hopper according to claim 5, characterized in that said at least two sub-regulation plates (23) are flattened to form a flat plate with a horizontal section shape matching the horizontal section shape of said reducer (12) in the plane of said flat plate.
7. The return funnel according to claim 5, characterized in that the inner surface of the reducer cylinder (12) is provided with a stopper for limiting the rotation angle of the adjusting plate (21).
8. The return hopper according to claim 1, characterized in that the adjusting plate (21) is provided with a plurality of through holes (25).
9. Return hopper according to claim 1, characterized in that the adjusting plate (21) is provided with a gasket on its side close to the second straight cylinder (13).
10. A reflux system, comprising a biochemical reaction tank, a reflux pipe and a reflux funnel according to any one of claims 1 to 9, wherein the reflux funnel is arranged in the biochemical reaction tank, one end of the reflux pipe is arranged below the reflux funnel and connected with the reflux funnel, and the other end of the reflux pipe is arranged at the bottom of the biochemical reaction tank and used for refluxing liquid in the reflux funnel to the bottom of the biochemical reaction tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020760006.XU CN212740772U (en) | 2020-05-09 | 2020-05-09 | Backflow bucket and backflow system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020760006.XU CN212740772U (en) | 2020-05-09 | 2020-05-09 | Backflow bucket and backflow system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212740772U true CN212740772U (en) | 2021-03-19 |
Family
ID=75004037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020760006.XU Active CN212740772U (en) | 2020-05-09 | 2020-05-09 | Backflow bucket and backflow system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212740772U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111547784A (en) * | 2020-05-09 | 2020-08-18 | 深圳市清研环境科技有限公司 | Reflux bucket |
-
2020
- 2020-05-09 CN CN202020760006.XU patent/CN212740772U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111547784A (en) * | 2020-05-09 | 2020-08-18 | 深圳市清研环境科技有限公司 | Reflux bucket |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212740772U (en) | Backflow bucket and backflow system | |
| US5979492A (en) | Fluid level regulating sleeve valve | |
| CN111547784A (en) | Reflux bucket | |
| CN204079618U (en) | Dissolved oxygen aerating apparatus and apply its water treating equipment | |
| CN212864161U (en) | Backflow bucket and backflow system | |
| CN112067264A (en) | System and method for testing current limiting effect of cut-off device | |
| CN202187327U (en) | Water level controller for siphon drainage pipe | |
| CN206308039U (en) | A kind of circular unpowered regulating reservoir | |
| CN220845747U (en) | Flow regulating device and sewage treatment tank | |
| CN212852213U (en) | Double-row water balancing device and double-row water culture pond | |
| CN104695389B (en) | Double floating box type upstreams control weir gate device | |
| CN210845397U (en) | Sand filtration backwashing system for sewage treatment | |
| CN111453792A (en) | Reflux bucket | |
| CN203334419U (en) | Pump station system | |
| CN217537244U (en) | Water level and water yield regulating and controlling device suitable for conventional wetland | |
| CN208175646U (en) | A kind of city drip irrigation system | |
| CN204922179U (en) | Miniature flotation pontoon is transferred and is flowed valve | |
| CN206525367U (en) | A kind of Water level adjustment device of protein separator | |
| CN206112395U (en) | Detachable filtering duct | |
| CN217757034U (en) | Unpowered siphoning type water distribution system capable of self-adapting to sewage flow | |
| CN114934571A (en) | Water level and water yield regulating and controlling device suitable for conventional wetland | |
| CN110425361A (en) | Outflow tube is used in hauling pipe irrigation | |
| CN216975969U (en) | Water valve controller | |
| CN214936425U (en) | Water collecting and distributing switching device | |
| CN104276679B (en) | Dissolved oxygen aerating apparatus and apply its water treating equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |