CN212597907U - Oxidizing agent injection device - Google Patents
Oxidizing agent injection device Download PDFInfo
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- CN212597907U CN212597907U CN202020669745.8U CN202020669745U CN212597907U CN 212597907 U CN212597907 U CN 212597907U CN 202020669745 U CN202020669745 U CN 202020669745U CN 212597907 U CN212597907 U CN 212597907U
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Abstract
The utility model provides an oxidation medicament injection device relates to environmental protection technical field, has solved the little technical problem of injection well oxidant influence scope. The oxidation medicament injection device comprises an injection well, an injection trunk pipe and a well expansion pipe, wherein the injection well is vertically inserted into soil to be repaired, flowering pipe sections for flowing out of an oxidation medicament are arranged on the well wall of the injection well and the pipe wall of the well expansion pipe, a guide pipe part is arranged on the well wall of the injection well corresponding to the flowering pipe sections, the well expansion pipe is arranged in the guide pipe part in a penetrating way, the injection trunk pipe vertically extends into an inner cavity of the injection well, the tail end of the injection trunk pipe is hinged with one end of the well expansion pipe, the injection trunk pipe can move up and down along the axial direction of the injection well, the well expansion pipe can be pushed out of the injection well or pulled back to the injection well through the guide pipe part when the injection; the lower part of the injection main pipe is provided with a medicine outlet which enables the oxidation medicine to flow out to the inner cavity of the injection well. The utility model is used for soil normal position oxidation, and influence range is big.
Description
Technical Field
The utility model belongs to the technical field of the environmental protection technique and specifically relates to a prosthetic oxidation medicament injection device of normal position is related to.
Background
The remediation of soil and underground water has become a hot point of the current environmental protection research at home and abroad. The soil is located in the central position of the natural environment, is the material basis for human survival, and is the central link for connecting the inorganic world and the organic world, and the biological world and the non-biological world in the natural environment. It is an important component of the basic and environmental elements of agricultural production, bearing about 90% of pollutants from all aspects of the environment.
In recent years, the modern industrial society has been developed, and pollutants entering the soil have been increased. Moreover, soil and groundwater interact and interact with each other. Once polluted, the soil can directly affect crops, and the pollutants can also cause secondary pollution to surface water and underground water, enter human bodies through drinking water or a soil-plant system through a food chain, directly endanger human health and have immeasurable influence on society, economic development and ecological environment. Therefore, the problem of soil and groundwater contamination is receiving more and more attention.
The ectopic restoration needs soil excavation, so that more engineering facilities and higher cost are provided, the structural property of the soil is easy to damage, and the ectopic restoration is only suitable for polluted areas with smaller polluted areas or in laboratory simulation experiments. And in-situ remediation does not need soil excavation and conveying, so that the treatment cost can be saved, and the damage to the environment is small.
In view of the current situation of soil and groundwater pollution, many repair technologies have been developed for in-situ remediation, wherein the in-situ injection technology is one of the technologies effective in stabilizing and removing pollutants in soil and groundwater, and the principle is to inject an agent into soil or groundwater through an injection well so as to stabilize or remove pollutants.
The applicant has found that the prior art has at least the following technical problems:
as shown in fig. 1, conventionally, an injection well injects an oxidant into an underground polluted area by means of a perforated pipe at a designated position, the influence range of the oxidant is influenced by injection pressure and gravity, and when the injection pressure is constant, the influence range is fixed, the influence range is small, a large number of injection wells are required to complete in-situ oxidation treatment in one area, and the workload is large, the construction period is long, and the investment cost is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an oxidation medicament injection device for normal position oxidation to the injection well oxidant that exists among the solution prior art technical problem that influence scope is little.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pair of oxidation medicament injection device, including injection well, injection trunk and expand the well casing, the vertical insertion of injection well is to waiting to restore in the soil, on the wall of a well of injection well with all be provided with the blossoming pipeline section of oxygen suppliment chemical agent outflow on the wall of a well of expanding the well casing, correspond on the wall of a well of injection well blossoming pipeline section position is provided with the pipe section, expand the well casing and wear to establish in the pipe section, the injection trunk vertically stretches into in the injection well inner chamber, and the end with expand well casing one end articulated, the injection trunk can follow the up-and-down motion of injection well casing, can push out the expansion well casing through the pipe section or pull back the injection well when the injection trunk up-and-down motion, still communicate through flexible connection pipe between injection trunk and the expansion well casing; and a medicine outlet for enabling the oxidizing agent to flow out of the inner cavity of the injection well is formed in the lower part of the injection main pipe.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
As a further improvement of the utility model, the flowering pipe section is formed by uniformly distributing a plurality of splitting grooves on the well wall of the injection well along the circumferential direction, and the extending direction of the splitting grooves is parallel to the axis of the injection well; and the blooming pipe section is formed by uniformly distributing a plurality of splitting grooves on the pipe wall of the expanded well pipe along the circumferential direction, and the extending direction of the splitting grooves is parallel to the axis of the expanded well pipe.
As a further improvement of the present invention, the up-and-down movement of the injection trunk has two extreme positions, and when the injection trunk moves to the first extreme position, the expansion pipe end is located in the conduit portion, when the injection trunk moves to the second extreme position, the expansion pipe level extends out.
As a further improvement of the utility model, the pipe portion is for running through the setting slant guiding hole on the injection well wall of a well, the guiding hole sets up for the slant, just the distance in vertical direction between the lowest lower edge and the highest edge of guiding hole is not less than expand the diameter of well casing, be provided with a plurality of drag reduction structures along the circumferencial direction array in the guiding hole.
As a further improvement, the drag reduction structure is a spherical bulge or a hemispherical bulge, and the convex surface is a smooth surface.
As a further improvement, the free end of the enlarged casing is provided with an end disc, the end disc diameter is greater than the guiding hole diameter, works as when the injection main pipe moves to first extreme position, the end disc inboard butt is in on the injection well outer wall.
As a further improvement, the quantity of expanding the well casing is many, all expand the well casing and follow injection well circumference evenly sets up, all expand the well casing all with it is articulated to pour into the main pipe into.
As a further improvement of the present invention, the length of the connecting pipe is greater than the maximum interval between the well-expanding pipe and the injection main pipe.
As a further improvement of the present invention, the well-expanding pipe comprises a first section and a second section which are arranged in sequence, the first section is hinged to the injection main pipe, the second section is arranged in the conduit pipe, and the first section and the second section are made of elastic materials.
As a further improvement of the present invention, the first section and the second section are made of different elastic materials, and the elastic material of the first section is more flexible than the elastic material of the second section.
As a further improvement, the well-expanding pipe is made of a material with good elastic deformation performance.
Compared with the prior art, the utility model following beneficial effect has:
the utility model provides an oxidation medicament injection device, including the injection well, injection trunk and expand the well casing, the vertical setting of injection well is in the soil that awaits repairing, the vertical setting of injection trunk is near injection well's blossoming pipe section department at the lower extreme in the injection well, be provided with out the medicine mouth in injection trunk lower part, with oxidation medicament from injecting into the trunk inside and flowing out from going out the medicine mouth and injecting into in, set up the pipe section of blooming on injecting into the well, can make the oxidation medicament that flows into in the injection well supply the medicine to the soil of week side through the pipe section of blooming and carry out normal position oxidation restoration, through set up the telescopic pipe that expands in the injection well casing, and carry out the push-and-pull action through the injection trunk and take in and stretch out in order to expand the well casing, when the vertical well casing of injection well is injected into with expanding the well casing shrink back injection well through control injection trunk, wait to inject, the injection well is made into a horizontal injector, and the expansion well pipe is provided with a flowering pipe section, so that the injection well has an expanded drug supply range and an expanded oxidation influence range of in-situ remediation; through set up drag reduction structure in pipe portion, can reduce the resistance of the flexible in-process of expanding the well pipe, improve the life-span, improve work efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a graph illustrating the range of influence of a prior art oxidizing agent injection apparatus;
FIG. 2 is a cross-sectional view of the oxidation agent injection apparatus according to the present invention after the expansion thereof;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
FIG. 4 is an enlarged view of portion B of FIG. 2;
FIG. 5 is a schematic structural view of the oxidation agent injection device of the present invention before the expansion of the resting state;
FIG. 6 is a schematic diagram illustrating the expanding process of the oxidation agent injection apparatus of the present invention;
FIG. 7 is a schematic structural view of the oxidation agent injection apparatus according to the present invention after the expansion thereof;
fig. 8 is a diagram showing the range of influence of the oxidation agent injection device according to the present invention after the expansion is completed.
Figure 1, injection well; 11. a flowering pipe section; 12. a conduit portion; 2. injecting into a main pipe; 21. a medicine outlet; 3. expanding a well pipe; 31. an end plate; 4. a connecting pipe; 5. a drag reduction structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 2, the utility model provides an oxidation medicament injection device, including injection well 1, injection trunk 2 and expansion well pipe 3, injection well 1 is vertical to be inserted in the soil of restoreing, all be provided with on the wall of a well of injection well 1 and on the pipe wall of expansion well pipe 3 and supply the bloated pipeline section 11 that the oxidation medicament flows out, it is provided with pipe section 12 to correspond bloated pipeline section 11 position on the wall of a well of injection well 1, expansion well pipe 3 wears to establish in pipe section 12, injection trunk 2 is vertical to stretch into in injection well 1 inner chamber, and the end is articulated with expansion well pipe 3 one end, injection trunk 2 can be along injection well 1 axial up-and-down motion, can push out injection well 1 or pull back injection well 1 through pipe section 12 when injection trunk 2 up-and-down motion, still communicate through flexible connection pipe 4 between injection trunk 2 and the expansion well pipe 3; the lower part of the injection main pipe 2 is provided with a medicine outlet 21 for flowing the oxidation medicine out of the inner cavity of the injection well 1.
As shown in fig. 8, the utility model provides an oxidation agent injection device, including injection well, injection trunk and expand the well casing, injection well vertical setting is in the soil that awaits repairing, injection trunk vertical setting is near injection well's the section of flowering tube section of injection well lower extreme in injection well, be provided with out the medicine mouth in injection trunk lower part, inject oxidation agent from injection trunk inside pouring into and flow out into injection well from out the medicine mouth, set up the section of flowering tube on injection well, can make the oxidation agent that flows into injection well carry out normal position oxidation restoration to the soil confession medicine of week side through the section of flowering tube, through set up the telescopic expands the well casing in injection well, and carry out the push-and-pull action through injection trunk and take in and stretch out in order to expand the well casing, will expand the well casing shrink back injection well casing when injection well casing is vertically put into, wait to inject the trunk and place the back, control injection trunk will expand the well casing and release, the injector becomes a horizontal injector, and the expansion well pipe is provided with a flowering pipe section, so that the expansion well pipe expands the drug supply range of an injection well and expands the oxidation influence range of in-situ remediation.
It should be noted that the conduit part 12 may be disposed between the split grooves of the flowering pipe sections 11, or above or below the flowering pipe sections 11, and may be selected according to actual needs, specifically, the number of the flowering pipe sections 11 may also be multiple sections, and the conduit part 12 may be disposed between two adjacent sections of the flowering pipe sections 11, and the specific form is not particularly required, as long as the conduit part 12 can be disposed on the wall of the injection well 1, and the well-expanding pipe 3 can be extended or retracted through the conduit part 12, so as to increase the influence range of the oxidizing agent.
It should be noted that, as shown in fig. 2 and fig. 3, the flowering pipe segment 11 is formed by uniformly distributing a plurality of split grooves on the well wall of the injection well 1 along the circumferential direction, and the extending direction of the split grooves is parallel to the axis of the injection well 1; and the blooming pipe section 11 is formed by uniformly distributing a plurality of splitting grooves along the circumferential direction on the pipe wall of the expanded well pipe 3, and the extending direction of the splitting grooves is parallel to the axis of the expanded well pipe 3. The structure of the flowering pipe section 11 may be the structure of the prior art, and is not modified in the present invention.
As an alternative embodiment, as shown in fig. 5-7, the up-and-down movement of the injection main 2 has two limit positions, when the injection main 2 moves to the first limit position (i.e. the lowest), the end of the well-expanding pipe 3 is located in the conduit part 12, when the injection main 2 moves to the second limit position (i.e. the highest), the well-expanding pipe 3 horizontally extends to the farthest position, i.e. the downward movement of the injection main 2 retracts the well-expanding pipe 3, and the upward movement of the injection main 2 pushes out the well-expanding pipe 3; of course, also can adopt opposite structural style, the first extreme position that injects the main pipe 2 promptly is the top position, and the second extreme position is the most low position, and this moment, the concertina movement that expands well pipe 3 is positive opposite with aforementioned structure, as for adopting what kind of mode the utility model discloses do not do the restriction, as long as can drive when injecting the main pipe 2 and go up and down expand and contract that expand well pipe 3 can.
As shown in fig. 4, the conduit part 12 is an oblique guide hole penetrating through the wall of the injection well 1, the guide hole is arranged obliquely upwards, the distance between the lowest lower edge and the highest upper edge of the guide hole in the vertical direction is not less than the diameter of the well-expanding pipe 3, and a plurality of drag reduction structures 5 are arranged in the guide hole in an array manner along the circumferential direction. The included angle between the guide hole and the vertical direction is equal to the minimum included angle between the injection main pipe 2 and the well expansion pipe 3, wherein the minimum included angle between the injection main pipe 2 and the well expansion pipe 3 is the included angle when the injection main pipe 2 is located at the first limit position. The opening angle and specification of the guide hole ensure that the expanded well pipe 3 cannot be clamped in the expansion process, smooth expansion motion can be kept, and the guide hole can be obtained according to reasonable calculation according to the pipe diameter and the moving distance of the expanded well pipe and the change range of an included angle between the expanded well pipe 3 and the injection main pipe 2 in actual use.
In order to prevent the edge of the guide hole from scratching the well-expanding pipe 3, the edge of the guide hole is of an arc transition structure.
As shown in fig. 4, the drag reducing structure 5 is a spherical or hemispherical bump, and the surface of the bump is a smooth surface.
As shown in fig. 2, the free end of the casing pipe 3 is provided with an end disc 31, the diameter of the end disc 31 is larger than the diameter of the pilot hole, and when the injection main pipe 2 moves to the first limit position, the inner side of the end disc 31 abuts against the outer wall of the injection well 1.
As shown in fig. 2 and fig. 5 to 7, the number of the well expansion pipes 3 is plural, all the well expansion pipes 3 are uniformly arranged along the circumferential direction of the injection well 1, and all the well expansion pipes 3 are hinged to the injection trunk 2. The hinged structure of the well expanding pipe 3 and the injection main pipe 2 can be realized by adopting products in the prior art, when two well expanding pipes 3 are arranged, a rotating shaft can be arranged at the bottom of the injection main pipe 2, the length of the rotating shaft is greater than the sum of the diameter of the injection main pipe 2 and the diameters of the two well expanding pipes 3, the injection main pipe 2 is connected in the middle of the rotating shaft, one of the two well expanding pipes 3 is connected to two sides of the injection main pipe 2, a connecting sleeve is arranged at the end part of the well expanding pipe 3, the connecting sleeve is movably sleeved on the rotating shaft, and a plugging structure is arranged at the tail end of the rotating shaft to prevent the; certainly in order to prevent in the injection trunk 2 lift in-process, produce the interference between its profile and the expansion pipe 3, the structure size of adapter sleeve need select the use according to actual need, do not specifically limit in the utility model discloses. When the radical that expands well casing 3 surpassed two, can set up the connecting ball in 2 bottoms of injection trunk, the week side of connecting ball sets up and expands the go-between that the 3 radical of well casing is the same, every tip that expands well casing 3 sets up the adapter sleeve, the adapter sleeve activity ring connects on the go-between, can rotate for the go-between, of course, in order to prevent in the lift in-process of injection trunk 2, its profile and expand and produce the interference between the well casing 3, the adapter sleeve, and the structural dimension of go-between need select the use according to actual need the utility model discloses in do not specifically limit.
It should be noted that the length of the connecting pipe 4 is greater than the maximum distance between the well expansion pipe 3 and the injection main pipe 2. The maximum interval between the well expansion pipe 3 and the injection main pipe 2 is the interval after completion of expansion.
As an optional implementation manner of the present invention, the well-expanding pipe 3 includes a first section and a second section that are sequentially disposed, the first section is hinged to the injection main pipe 2, the second section is disposed in the conduit pipe 12, and both the first section and the second section are made of elastic materials. The elastic material is, for example, a thermoplastic material, and the well-expanding tube 3 can be appropriately bent and restored.
As an optional embodiment of the present invention, the first section and the second section are made of different elastic materials, and the elastic material of the first section is more flexible than the elastic material of the second section. Since the well-expanding tube 3 needs to have a certain rigidity when it is inserted into the loose soil, the flexibility of the elastic material of the present invention is not very soft, such as a cured plastic.
Of course, the well-expanding pipe 3 of the present invention can be made without adopting a segmented structure and different elastic materials.
The well-expanding pipe 3 is made of a material with good elastic deformation performance, such as a mature plastic.
The utility model discloses a set up drag reduction structure 5 in pipe portion 12, can reduce the flexible in-process resistance that expands well pipe 3, improve the life-span, improve work efficiency.
Will increase the resistance of expanding well pipe 3 at flexible in-process after setting up end disc 31, can be free when flexible in order to improve and expand well pipe 3, soil softness will keep, end disc 31 can adopt the hard material that has certain intensity to make in addition, like hard plastic, and end disc 31 specification as long as can be slightly bigger than the guiding hole can, the diameter of minimize end disc 31, of course, end disc 31 also can not be the ring shape structure, also can set to circular arc section structure, circular arc section structure with expand between the well pipe 3 and be connected through the connecting rod, can also adopt not to set up end disc 31, and set up 1 or many extension rods expanding well pipe 3 tip, the extension rod encloses synthetic circular diameter to be slightly greater than the guiding hole diameter can.
It should be noted that "inward" is a direction toward the center of the accommodating space, and "outward" is a direction away from the center of the accommodating space.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in fig. 2, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An oxidizing agent injection device is characterized by comprising an injection well, an injection trunk and a well expansion pipe, wherein the injection well is vertically inserted into soil to be repaired, flowering pipe sections for flowing out an oxidizing agent are arranged on the well wall of the injection well and the pipe wall of the well expansion pipe, a pipe section is arranged on the well wall of the injection well corresponding to the position of the flowering pipe sections, the well expansion pipe is arranged in the pipe section in a penetrating mode, the injection trunk vertically extends into the inner cavity of the injection well, the tail end of the injection trunk is hinged to one end of the well expansion pipe, the injection trunk can move up and down along the axial direction of the injection well, the well expansion pipe can be pushed out of the injection well or pulled back into the injection well through the pipe section when the injection trunk moves up and down, and the injection trunk and the well expansion pipe are communicated through a flexible connecting pipe; and a medicine outlet for enabling the oxidizing agent to flow out of the inner cavity of the injection well is formed in the lower part of the injection main pipe.
2. The oxidizing agent injection device according to claim 1, wherein the flowering pipe section is formed by uniformly distributing a plurality of cleavage grooves on the wall of the injection well along the circumferential direction, and the extension direction of the cleavage grooves is parallel to the axis of the injection well; and the blooming pipe section is formed by uniformly distributing a plurality of splitting grooves on the pipe wall of the expanded well pipe along the circumferential direction, and the extending direction of the splitting grooves is parallel to the axis of the expanded well pipe.
3. An oxidizing agent injection device according to claim 1 or 2, wherein the up-and-down movement of said injection trunk has two limit positions, and when said injection trunk is moved to a first limit position, said well-expanding pipe end is located in said conduit pipe portion, and when said injection trunk is moved to a second limit position, said well-expanding pipe is horizontally extended.
4. An oxidizing agent injection apparatus according to claim 3, wherein said conduit portion is a slanted guide hole penetrating a wall of said injection well, said guide hole being arranged obliquely upward, and a distance in a vertical direction between a lowermost edge and an uppermost upper edge of said guide hole is not smaller than a diameter of said enlarged well, and a plurality of drag reduction structures are arranged in a circumferential array in said guide hole.
5. The oxidizing agent injection device according to claim 4, wherein said drag reducing structure is a spherical protrusion or a hemispherical protrusion, and a surface of said spherical protrusion or said hemispherical protrusion is a smooth surface.
6. An oxidizing agent injection apparatus according to claim 4, wherein a free end of said well-enlarging pipe is provided with an end disc having a diameter larger than that of said pilot hole, and an inner side of said end disc abuts against an outer wall of said injection well when said injection trunk is moved to a first limit position.
7. The oxidizing agent injection apparatus according to claim 2, wherein the number of said expansion pipes is plural, all of said expansion pipes are arranged uniformly in the circumferential direction of said injection well, and all of said expansion pipes are hinged to said injection trunk.
8. The oxidizing agent injection device of claim 1, wherein the connector length is greater than a maximum separation between the well-expanded pipe and the injection trunk.
9. The oxidizing agent injection device according to claim 1, wherein the well-expanding tube comprises a first section and a second section which are arranged in sequence, the first section is hinged with the injection trunk, the second section is arranged in the conduit pipe portion in a penetrating mode, and the first section and the second section are made of elastic materials.
10. The oxidizing agent injection device according to claim 9, wherein said first section and said second section are made of different elastic materials, and the elastic material of said first section is more flexible than the elastic material of said second section.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020669745.8U CN212597907U (en) | 2020-04-27 | 2020-04-27 | Oxidizing agent injection device |
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| CN202020669745.8U CN212597907U (en) | 2020-04-27 | 2020-04-27 | Oxidizing agent injection device |
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| CN212597907U true CN212597907U (en) | 2021-02-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113000596A (en) * | 2021-03-13 | 2021-06-22 | 广东省润土环境治理有限公司 | Contaminated soil remediation system |
| CN114467725A (en) * | 2022-02-10 | 2022-05-13 | 陈倩倩 | Fertilizing and watering device and method for strawberries |
-
2020
- 2020-04-27 CN CN202020669745.8U patent/CN212597907U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113000596A (en) * | 2021-03-13 | 2021-06-22 | 广东省润土环境治理有限公司 | Contaminated soil remediation system |
| CN114467725A (en) * | 2022-02-10 | 2022-05-13 | 陈倩倩 | Fertilizing and watering device and method for strawberries |
| CN114467725B (en) * | 2022-02-10 | 2023-07-25 | 宿州维度智能制造有限公司 | Fertilizing and watering device and method for strawberries |
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