CN113859794A - Anticorrosive easy clear crude oil storage tank - Google Patents
Anticorrosive easy clear crude oil storage tank Download PDFInfo
- Publication number
- CN113859794A CN113859794A CN202111143416.5A CN202111143416A CN113859794A CN 113859794 A CN113859794 A CN 113859794A CN 202111143416 A CN202111143416 A CN 202111143416A CN 113859794 A CN113859794 A CN 113859794A
- Authority
- CN
- China
- Prior art keywords
- main body
- storage tank
- liquid
- tank main
- crude oil
- 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.)
- Pending
Links
- 239000010779 crude oil Substances 0.000 title claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 94
- 239000003921 oil Substances 0.000 claims abstract description 72
- 238000004140 cleaning Methods 0.000 claims abstract description 33
- 230000003670 easy-to-clean Effects 0.000 claims abstract description 16
- 239000004809 Teflon Substances 0.000 claims abstract description 6
- 229920006362 Teflon® Polymers 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000005260 corrosion Methods 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 claims description 5
- 230000002421 anti-septic effect Effects 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 239000012459 cleaning agent Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005406 washing Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/02—Wall construction
- B65D90/04—Linings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/0093—Devices for cleaning the internal surfaces of the container and forming part of the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention provides an anticorrosive and easily-cleaned crude oil storage tank, relates to the technical field of crude oil storage tanks, mainly aims to overcome the defects of simple function and crude structure of the traditional crude oil storage tank, and provides a crude oil storage tank structure convenient to clean while ensuring the basic crude oil storage effect. The anticorrosive easy-to-clean crude oil storage tank comprises an oil tank main body and a liquid storage tank positioned above the oil tank main body, wherein the liquid storage tank is fixedly connected with the oil tank main body through a fixing column positioned on the oil tank main body; a liquid pump is arranged at one end of the liquid storage tank, which faces the oil tank main body, a fixed cover is arranged at the upper end of the oil tank main body, the liquid pump is connected with a cleaning pipe which is arranged on the fixed cover in a penetrating way, and when the liquid pump is started, liquid in the liquid storage tank can be discharged into the oil tank main body through the cleaning pipe; all the inner side walls of the oil tank main body are coated with anti-sticking walls, and the anti-sticking walls are made of Teflon materials.
Description
Technical Field
The invention relates to the technical field of crude oil storage tanks, in particular to an anticorrosive and easy-to-clean crude oil storage tank.
Background
Petroleum is somewhat corrosive and highly viscous. Therefore, in the process of mining and conveying, the problems of high energy consumption, easy corrosion, difficult cleaning and the like of conveying equipment are easily caused. Therefore, the viscosity of the crude oil is reduced by heating the crude oil to reduce the flow resistance, so that the petroleum is conveniently conveyed in a pipeline. With increasing temperature, the corrosiveness of the oil to the equipment is also increased. When the equipment needs to be cleaned after running for a certain period, cooling treatment is needed to ensure that people can safely enter the equipment to operate. At the moment, because the temperature is normal temperature, the viscosity of the crude oil is recovered to be normal, the cleaning is difficult, and the amount of the cleaning agent and the water consumption is too large, so that the operation cost of an enterprise and the damage to the environment are increased invisibly.
For this reason, many enterprises reduce the amount of water used for washing equipment and shorten the washing time by using a high-efficiency detergent. This makes the composition of the wash water more complex and virtually increases the cost of degrading the wash water.
Disclosure of Invention
The invention aims to provide a corrosion-resistant and easy-to-clean crude oil storage tank, which aims to solve the technical problems that the traditional crude oil storage tank in the prior art is simple in function, crude in structure and difficult to clean. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides an anticorrosive easy-to-clean crude oil storage tank which comprises an oil tank main body and a liquid storage tank positioned above the oil tank main body, wherein the liquid storage tank is fixedly connected with the oil tank main body through a fixing column positioned on the oil tank main body; a liquid pump is arranged at one end of the liquid storage tank, which faces the oil tank main body, a fixed cover is arranged at the upper end of the oil tank main body, the liquid pump is connected with a cleaning pipe which is arranged on the fixed cover in a penetrating way, and when the liquid pump is started, liquid in the liquid storage tank can be discharged into the oil tank main body through the cleaning pipe; all the inner side walls of the oil tank main body are coated with anti-sticking walls, and the anti-sticking walls are made of Teflon materials.
The cleaning liquid used for cleaning the oil tank main body is stored in the liquid storage tank positioned above the oil tank main body, and the cleaning liquid can be conveniently introduced into the oil tank main body through the liquid pumping pump and the cleaning pipe, so that the interior of the oil tank main body is conveniently cleaned; in addition, the anti-sticking wall on the side wall of the oil tank body can effectively improve the anti-sticking performance of the oil tank body, so that the oil tank body is easy to clean.
On the basis of the technical scheme, the invention can be further improved as follows.
As a further improvement of the invention, the upper end of the oil tank main body is also provided with a fixing piece, the outer edge of the fixing piece is fixedly connected with the oil tank main body, and the fixing cover is positioned in the middle of the fixing piece and is fixedly connected with the fixing piece;
the fixing column is fixedly connected with the fixing piece.
As a further improvement of the invention, the height of one end of the cleaning pipe extending into the oil tank main body is lower than that of the fixing piece.
As a further improvement of the invention, the liquid storage box is also provided with a liquid adding pipe, one end of the liquid adding pipe is communicated with the upper end of the liquid storage box, and cleaning liquid can be conveyed into the liquid storage box through the liquid adding pipe.
As a further improvement of the invention, the fixed column is arranged in parallel with the liquid feeding pipe.
As a further improvement of the invention, a liquid filling port and a liquid pumping port are further arranged on the oil tank main body, and the liquid filling port and/or the liquid pumping port penetrate through the anti-sticking wall and are arranged on the side wall of the oil tank main body.
As a further improvement of the invention, a weight sensor is further arranged on the inner side wall of the oil tank main body.
As a further improvement of the present invention, the weight sensor is provided on an inner side wall of the tank main body through the anti-sticking wall.
Compared with the prior art, the anticorrosive easy-to-clean crude oil storage tank provided by the preferred embodiment of the invention is provided with the liquid storage tank besides the oil tank main body, and the anti-sticking wall made of the Teflon material is arranged on the inner side wall of the oil tank main body. Above-mentioned structure is effectual has solved the defect that traditional crude oil storage tank majority function is simple, the structure is crude, when having guaranteed basic crude oil storage effect, can also prevent effectively that crude oil from wasing the oil tank main part to the adhesion of oil tank main part inner wall, convenience of customers.
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 the drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of a corrosion-resistant easy-to-clean crude oil storage tank according to the present invention;
FIG. 2 is a cross-sectional view of a corrosion resistant easy to clean crude oil storage tank of the present invention.
In the figure: 1. an oil tank main body; 11. a fixed cover; 12. a liquid filling port; 13. a liquid extraction port; 2. a liquid storage tank; 21. a liquid feeding pipe; 3. fixing a column; 4. a liquid pump; 5. cleaning the tube; 6. anti-sticking walls; 7. a fixing member; 8. and a weight sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
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", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
As shown in fig. 1-2, the anticorrosive easy-to-clean crude oil storage tank provided by the invention comprises an oil tank main body 1 and a liquid storage tank 2 positioned above the oil tank main body 1, wherein the liquid storage tank 2 is fixedly connected with the oil tank main body 1 through a fixing column 3 positioned on the oil tank main body 1; a liquid pump 4 is arranged at one end of the liquid storage tank 2 facing the oil tank main body 1, a fixed cover 11 is arranged at the upper end of the oil tank main body 1, the liquid pump 4 is connected with a cleaning pipe 5 penetrating through the fixed cover 11, and when the liquid pump 4 is started, liquid in the liquid storage tank 2 can be discharged into the oil tank main body 1 through the cleaning pipe 5; all the inner side walls of the oil tank body 1 are coated with anti-sticking walls 6, and the anti-sticking walls 6 are made of Teflon materials.
The cleaning liquid used for cleaning the oil tank main body 1 is stored in the liquid storage tank 2 positioned above the oil tank main body 1, and the cleaning liquid can be conveniently guided into the oil tank main body 1 through the liquid pumping pump 4 and the cleaning pipe 5, so that the interior of the oil tank main body 1 can be conveniently cleaned; in addition, the anti-sticking wall 6 on the side wall of the oil tank main body 1 can effectively improve the anti-sticking performance of the oil tank main body 1, and the oil tank main body can be cleaned easily.
Specifically, the tank body 1 has a cylindrical structure with an open upper end, and the fixed cover 11 can close the opening.
As an optional embodiment, the number of the cleaning tubes 5 penetrating the fixed cover 11 is plural, one end of each of the plural cleaning tubes 5 is communicated with the liquid pump 4, and the other end is far away from each other and is uniformly distributed on the fixed cover 11, so that the cleaning agent pumped out by the liquid pump 4 can be uniformly released by the cleaning tubes 5. Generally, the number of the cleaning tubes 5 is eight.
In order to further improve the connection strength between the oil tank main body 1 and the liquid storage tank 2, as an alternative embodiment, a fixing member 7 is further disposed at the upper end of the oil tank main body 1, an outer side edge of the fixing member 7 is fixedly connected with the oil tank main body 1, a fixing cover 11 is located in the middle of the fixing member 7 and is fixedly connected with the fixing member 7, and at this time, the fixing column 3 is fixedly connected with the fixing member 7.
Specifically, the fixing cover 11 is a cylindrical plate-shaped structure and is located between the fixing member 7 and the liquid storage tank 2, the fixing member 7 may be a hollow annular structure, or an inclined annular structure formed by a protrusion at the middle portion, as shown in fig. 1, the fixing column 3 is located between the fixing member 7 and the liquid storage tank 2, and the liquid storage tank 2 can be firmly fixed above the oil tank main body 1 through the fixing member 7 and the fixing column 3.
As an alternative embodiment, the height of the end of the cleaning pipe 5 extending into the tank body 1 is lower than the height of the fixing member 7, so that it is ensured that the cleaning liquid does not splash onto the inner side wall of the fixing member 7, as shown in fig. 2.
As an optional embodiment, the liquid storage tank 2 is further provided with a liquid feeding pipe 21, one end of the liquid feeding pipe 21 is communicated with the upper end of the liquid storage tank 2, and the cleaning liquid can be conveyed into the liquid storage tank 2 through the liquid feeding pipe 21.
As an alternative embodiment, the fixing post 3 is arranged in parallel with the filler pipe 21.
As an alternative embodiment, the oil tank main body 1 is further provided with a liquid filling port 12 and a liquid pumping port 13, and the liquid filling port 12 and/or the liquid pumping port 13 are/is arranged on the side wall of the oil tank main body 1 through the anti-sticking wall 6.
In an alternative embodiment, a weight sensor 8 is further provided on an inner side wall of the oil tank main body 1.
As an alternative embodiment, the weight sensor 8 is provided on the inner side wall of the tank main body 1 through the anti-stick wall 6. It should be noted that the weight sensor 8 may be located below the side wall of the tank body 1 near the liquid suction port 13, or may be located on the bottom wall of the tank body 1.
As an alternative embodiment, the device further comprises a controller with a display device, the controller is in communication connection with the weight sensor 8, and data detected by the weight sensor 8 can be transmitted to the controller and displayed on the display device, so that a worker can know the conditions in the oil tank main body 1 in real time conveniently.
When the device is used, crude oil can be firstly added into the oil tank main body 1 through the liquid adding port 12, the anti-sticking wall 6 made of Teflon material can effectively prevent the crude oil from being stuck on the inner side wall of the oil tank main body 1, the subsequent cleaning can be facilitated for a user, and the weight sensor 8 can weigh the crude oil in the oil tank main body 1 and transmit and display the crude oil on corresponding equipment. When the user need take out crude oil, only need utilize drawing liquid mouth 13 take out crude oil can, the drawing liquid pump 4 can be opened to the user afterwards, be located the inside cleaner of deposit liquid case 2 and can flow to the inside antiseized wall 6 of oil tank main part 1 through multiunit scavenge pipe 5 on, realize the washing to antiseized wall 6. After the cleaning is completed, the user can use the liquid drawing port 13 to draw out the cleaning agent, and the weight sensor 8 can monitor whether the cleaning agent is completely drawn out.
The above is the use flow of the scheme.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. The crude oil storage tank is anticorrosive and easy to clean and is characterized by comprising an oil tank main body (1) and a liquid storage tank (2) positioned above the oil tank main body (1), wherein the liquid storage tank (2) is fixedly connected with the oil tank main body (1) through a fixing column (3) positioned on the oil tank main body (1); a liquid pump (4) is arranged at one end, facing the oil tank main body (1), of the liquid storage tank (2), a fixed cover (11) is arranged at the upper end of the oil tank main body (1), the liquid pump (4) is connected with a cleaning pipe (5) penetrating through the fixed cover (11), and when the liquid pump (4) is started, liquid in the liquid storage tank (2) can be discharged into the oil tank main body (1) through the cleaning pipe (5);
all the inner side walls of the oil tank main body (1) are coated with anti-sticking walls (6), and the anti-sticking walls (6) are made of Teflon materials.
2. The crude oil storage tank with corrosion protection and easy cleaning as claimed in claim 1, wherein a fixing member (7) is further arranged at the upper end of the oil tank main body (1), the outer edge of the fixing member (7) is fixedly connected with the oil tank main body (1), and the fixing cover (11) is positioned in the middle of the fixing member (7) and is fixedly connected with the fixing member (7);
the fixing column (3) is fixedly connected with the fixing piece (7).
3. Anti-corrosion easy-to-clean crude oil storage tank according to claim 2, characterized in that the height of the end of the cleaning pipe (5) extending into the tank body (1) is lower than the height of the fixing member (7).
4. The antiseptic and easy-to-clean crude oil storage tank as recited in claim 1, characterized in that the liquid storage tank (2) is further provided with a liquid feeding pipe (21), one end of the liquid feeding pipe (21) is communicated with the upper end of the liquid storage tank (2), and the cleaning liquid can be conveyed into the liquid storage tank (2) through the liquid feeding pipe (21).
5. Antiseptic easy-to-clean crude oil storage tank according to claim 4, characterized in that the fixed column (3) is arranged in parallel with the liquid feeding pipe (21).
6. The antiseptic easy-to-clean crude oil storage tank as claimed in claim 1, characterized in that the tank body (1) is further provided with a liquid filling port (12) and a liquid pumping port (13), and the liquid filling port (12) and/or the liquid pumping port (13) are/is arranged on the side wall of the tank body (1) through the anti-sticking wall (6).
7. Anti-corrosion easy-to-clean crude oil storage tank according to claim 1, characterized in that a weight sensor (8) is further arranged on the inner side wall of the tank body (1).
8. Anti-corrosion easy-to-clean crude oil storage tank according to claim 7, characterized in that the weight sensor (8) is arranged on the inner side wall of the tank body (1) through the anti-stick wall (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111143416.5A CN113859794A (en) | 2021-09-28 | 2021-09-28 | Anticorrosive easy clear crude oil storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111143416.5A CN113859794A (en) | 2021-09-28 | 2021-09-28 | Anticorrosive easy clear crude oil storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113859794A true CN113859794A (en) | 2021-12-31 |
Family
ID=78991738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111143416.5A Pending CN113859794A (en) | 2021-09-28 | 2021-09-28 | Anticorrosive easy clear crude oil storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113859794A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120024386A1 (en) * | 2010-07-29 | 2012-02-02 | O'leary David | System and method for pressure flushing and cleaning water tanks |
| CN202784444U (en) * | 2012-09-21 | 2013-03-13 | 中国海洋石油总公司 | Anti-corrosion crude oil storage tank capable of being cleaned easily |
| CN107720013A (en) * | 2017-09-26 | 2018-02-23 | 遵义市永胜金属设备有限公司 | A kind of easy cleaning wine storage tank |
| CN207434259U (en) * | 2017-11-13 | 2018-06-01 | 荆门丰盈节能环保科技股份有限公司 | A kind of chemical industry oil tank with cleaning device |
| CN208531103U (en) * | 2018-06-01 | 2019-02-22 | 东莞市源岭环保设备有限公司 | One kind is industrial to facilitate descaling type water tank |
| CN211563937U (en) * | 2019-10-10 | 2020-09-25 | 广东国能中林实业有限公司 | Cleaning device for hydrogen oil storage tank |
| CN213001665U (en) * | 2020-08-31 | 2021-04-20 | 东莞市穗安清洗防腐工程有限公司 | Cleaning agent spraying device for cleaning inner wall of oil tank |
-
2021
- 2021-09-28 CN CN202111143416.5A patent/CN113859794A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120024386A1 (en) * | 2010-07-29 | 2012-02-02 | O'leary David | System and method for pressure flushing and cleaning water tanks |
| CN202784444U (en) * | 2012-09-21 | 2013-03-13 | 中国海洋石油总公司 | Anti-corrosion crude oil storage tank capable of being cleaned easily |
| CN107720013A (en) * | 2017-09-26 | 2018-02-23 | 遵义市永胜金属设备有限公司 | A kind of easy cleaning wine storage tank |
| CN207434259U (en) * | 2017-11-13 | 2018-06-01 | 荆门丰盈节能环保科技股份有限公司 | A kind of chemical industry oil tank with cleaning device |
| CN208531103U (en) * | 2018-06-01 | 2019-02-22 | 东莞市源岭环保设备有限公司 | One kind is industrial to facilitate descaling type water tank |
| CN211563937U (en) * | 2019-10-10 | 2020-09-25 | 广东国能中林实业有限公司 | Cleaning device for hydrogen oil storage tank |
| CN213001665U (en) * | 2020-08-31 | 2021-04-20 | 东莞市穗安清洗防腐工程有限公司 | Cleaning agent spraying device for cleaning inner wall of oil tank |
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Application publication date: 20211231 |
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| RJ01 | Rejection of invention patent application after publication |