CN114985386A - Pipeline cleaning technology by using microbial reaction of biological pharmacy - Google Patents

Pipeline cleaning technology by using microbial reaction of biological pharmacy Download PDF

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Publication number
CN114985386A
CN114985386A CN202210621287.4A CN202210621287A CN114985386A CN 114985386 A CN114985386 A CN 114985386A CN 202210621287 A CN202210621287 A CN 202210621287A CN 114985386 A CN114985386 A CN 114985386A
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CN
China
Prior art keywords
pipeline
control box
box body
mobile control
connecting plate
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
Application number
CN202210621287.4A
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Chinese (zh)
Inventor
李智
诸葛鑫
刘金涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhixiang Biotechnology Suzhou Co ltd
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Zhixiang Biotechnology Suzhou Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhixiang Biotechnology Suzhou Co ltd filed Critical Zhixiang Biotechnology Suzhou Co ltd
Priority to CN202210621287.4A priority Critical patent/CN114985386A/en
Publication of CN114985386A publication Critical patent/CN114985386A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027Cleaning the internal surfaces; Removal of blockages
    • B08B9/032Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00Accessories or details of general applicability for machines or apparatus for cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027Cleaning the internal surfaces; Removal of blockages
    • B08B9/032Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0325Control mechanisms therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027Cleaning the internal surfaces; Removal of blockages
    • B08B9/04Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/043Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/0436Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

The invention discloses a technology for cleaning a pipeline by using microbial reaction of bio-pharmaceuticals, which comprises the pipeline and a pipeline cleaning piece, wherein a driving motor is arranged in a first mobile control box body, the outer wall of a rotating disc is connected with a microbial storage ring, the end part of a spray pipe is provided with a horn-shaped nozzle, the lower end of the inner wall of the pipeline cleaning piece is provided with a falling port, a collecting box body is arranged right below the falling port, and a reset spring is arranged outside a movable rod. According to the invention, the driving motor drives the microorganism storage ring to rotate through the designed driving motor, the rotating shaft, the microorganism storage ring, the spray pipe and the horn-shaped nozzle, the microorganisms in the microorganism storage ring are quantitatively sprayed onto the inner wall of the pipeline through the horn-shaped nozzle, and the flora is cleaned firstly by the pipeline cleaning piece through the designed pipeline cleaning piece, the falling port and the collection box body, and then the flora falls into the collection box body from the falling port, so that the cleaning of the flora in the pipeline is realized.

Description

Pipeline cleaning technology by using microbial reaction of biological pharmacy
Technical Field
The invention relates to the technical field of pipeline cleaning equipment, in particular to a technology for cleaning a pipeline by using microbial reaction of bio-pharmaceuticals.
Background
The pipeline leads to inconvenient cleaning because of its special structure, use chemical cleaning and high pressure water cleaning to most of pipeline cleaning, chemical cleaning pipeline adopts chemical agent, carry out interim transformation to the pipeline, carry out circulation chemical cleaning from the both ends of pipeline with interim pipeline and circulation pump station, the technique has the characteristics such as flexibility is strong, fast, wash thoroughly, high pressure water cleaning, adopt the high pressure water jet above 50Mpa, carry out high pressure water jet to the internal surface dirt of pipeline and peel off the clearance, the technique has fast, characteristics such as with low costs, but at present most of methods to pipeline cleaning involve little to clear up the pipeline through the reaction of microorganism.
It is current, for example, laid open No. CN210253409U in 2020 4 months 7 days, a novel pipeline inner wall cleaning device is disclosed, only can fix bullet spare and cleaning brush through the nut, cleaning brush can compress bullet spare and then can satisfy the clearance of different internal diameter pipelines according to the pipeline internal diameter of difference, promote application scope and reinforcing practicality, the suction box, the dust absorption pipe, the air exhauster, pillar and suction hood symmetry are equipped with two sets ofly, through setting up the suction box, the dust absorption pipe, air exhauster and suction hood, can inhale the dust box with the scale deposit that cleans down, avoid follow-up carrying out the secondary to the structure that clears up down to clear up, save the cost, promote the fixed plate through cylinder and telescopic link and slide in the mount is inside, can clear up the pipeline of the different degree of depth, promote the suitability. .
Therefore, it is necessary to develop a pipeline cleaning technique using the microbial reaction of biopharmaceuticals to solve the above problems.
Disclosure of Invention
The invention aims to provide a pipeline cleaning technology by using a microbial reaction of biopharmaceuticals, which solves the problem that the technology is inconvenient to clean bacterial flora in a pipeline and collect the bacterial flora in the pipeline.
In order to achieve the above purpose, the invention provides the following technical scheme: a technology for cleaning a pipeline by using microbial reaction of bio-pharmaceuticals comprises the pipeline, a driving motor, a first pulley, a second mobile control box body, a pipeline cleaning piece, a trapezoidal baffle and a movable rod, wherein the driving motor is arranged in the first mobile control box body, the output end of the driving motor is connected with a rotating shaft, the outer wall of the rotating shaft is connected with a rotating disc, the outer wall of the rotating disc is connected with a microorganism storage ring, the outer surface of the microorganism storage ring is provided with a spray pipe, the end part of the spray pipe is provided with a horn-shaped nozzle, the number of the horn-shaped nozzles is two, the second pulley is arranged below the first pulley, the second pulley is arranged in a chute, the lower end of the inner wall of the pipeline cleaning piece is provided with a falling port, the number of the falling ports is a plurality, a collecting box body is arranged under the falling port, and the side surface of the collecting box body is fixedly connected with a collecting box body handle, the trapezoidal baffle is two upper ends and the lower extreme that are fixed in pipeline clearance piece side respectively, pipeline clearance piece below is equipped with the spout, the movable rod top is connected with large-scale rubber connecting plate, the movable rod bottom is connected with small-size rubber connecting plate, the movable rod externally mounted has reset spring.
Preferably: the pipeline is installed at the top of the first installation base and the second installation base, the second installation base is arranged on the outer side of the first installation base, a first mobile control box body is arranged on one side of the pipeline, and a second mobile control box body is arranged on the other side of the pipeline, so that the pipeline can be installed at the top of the first installation base and the second installation base.
Preferably: microorganism storage ring is installed in the first mobile control box outside, first mobile control box side is provided with square door, microorganism storage ring installs inside the pipeline for the microorganism can be stored in microorganism storage ring.
Preferably: the square door side fixedly connected with U-shaped handle, the square door below is provided with the spout, and the second pulley of being convenient for can slide along the spout.
Preferably: the spout bottom surface is connected with the spout fixing base, spout fixing base side is connected with the pipeline for the spout can be fixed at spout fixing base top.
Preferably: installation pieces are installed on two sides of the first pulley, a large rubber connecting plate is connected to the bottom of each installation piece, a small rubber connecting plate is arranged below each large rubber connecting plate, and the large rubber connecting plate, the movable rod, the reset spring and the small rubber connecting plate are matched for use.
Preferably: the connecting piece is installed at second mobile control box top, the connecting piece side is fixed with pipeline clearance spare connecting piece, has realized the combined use of second mobile control box, connecting piece and pipeline clearance spare connecting piece.
Preferably: pipeline clearance spare connecting piece side is connected with the pipeline clearance spare for the pipeline clearance spare is connected with the second mobility control box through pipeline clearance spare connecting piece and connecting piece.
Preferably: the top of the reset spring is connected with a large-scale rubber connecting plate, the bottom of the reset spring is connected with a small-scale rubber connecting plate, and the bottom surface of the small-scale rubber connecting plate is connected with a second mobile control box body, so that the second pulley can stably slide in the pipeline.
In the technical scheme, the invention provides the following technical effects and advantages:
through the designed first mobile control box body, a driving motor, a rotating shaft, a rotating disc, a microorganism storage ring, a spray pipe and a horn-shaped nozzle, the driving motor drives the microorganism storage ring to rotate, and microorganisms in the microorganism storage ring are quantitatively sprayed onto the inner wall of the pipeline through the horn-shaped nozzle;
through the designed second mobile control box body, the connecting piece, the pipeline cleaning piece, the falling port, the trapezoidal baffle, the collecting box body and the collecting box body handle, beneficial flora formed in the pipeline can be conveniently collected, the pipeline cleaning piece firstly cleans the beneficial flora, and then the beneficial flora falls into the collecting box body through the plurality of falling ports, so that the cleaning of the bacterial flora in the pipeline is realized, and the cleaning efficiency of the bacterial flora in the pipeline is improved;
through large-scale rubber connecting plate, movable rod, reset spring, the small-size rubber connecting plate of design above first pulley and second pulley, constituted one set of absorbing mechanism for first pulley and second pulley are more steady in the inside slip of pipeline, make the microorganism that the tubaeform nozzle erupted more even.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic perspective view of the pipe of the present invention;
FIG. 3 is a front view of the first sheave of the present invention;
FIG. 4 is a perspective view of the pipe clearing element of the present invention;
FIG. 5 is an enlarged schematic view of FIG. 2 at A in accordance with the present invention;
FIG. 6 is an enlarged view of the structure of FIG. 3 at B according to the present invention;
FIG. 7 is an enlarged view of the structure of FIG. 4 at C;
FIG. 8 is a schematic perspective view of a microbial storage ring of the present invention;
FIG. 9 is a top view of the U-shaped handle of the present invention.
Description of reference numerals:
1. a pipeline; 2. a first mounting base; 3. a first movement control box; 4. a drive motor; 5. a rotating shaft; 6. rotating the disc; 7. a microbial storage ring; 8. a nozzle; 9. a trumpet-shaped nozzle; 10. A square door; 11. a U-shaped handle; 12. a chute; 13. a chute fixing seat; 14. a first pulley; 15. A second movement control box body; 16. a connecting member; 17. a pipe clearing member connector; 18. a pipe clearing member; 19. a drop opening; 20. a trapezoidal baffle; 21. a collection box body; 22. a collection box body handle; 23. A large rubber connecting plate; 24. a movable rod; 25. a return spring; 26. a small-sized rubber connecting plate; 27. Mounting a sheet; 28. a second pulley; 29. a second mounting base.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
The invention provides a technology for cleaning a pipeline by using microbial reaction of biopharmaceuticals, which comprises a pipeline 1, a driving motor 4, a first pulley 14, a second mobile control box body 15, a pipeline cleaning piece 18, a trapezoidal baffle 20 and a movable rod 24, wherein the driving motor 4 is arranged inside a first mobile control box body 3, the output end of the driving motor 4 is connected with a rotating shaft 5, the outer wall of the rotating shaft 5 is connected with a rotating disc 6, the outer wall of the rotating disc 6 is connected with a microbial storage ring 7, the outer surface of the microbial storage ring 7 is provided with a spray pipe 8, the end part of the spray pipe 8 is provided with a horn-shaped nozzle 9, the number of the horn-shaped nozzles 9 is two, the second pulley 28 is arranged below the first pulley 14, the second pulley 28 is arranged inside a sliding groove 12, the lower end of the inner wall of the pipeline cleaning piece 18 is provided with a falling port 19, the number of the falling port 19 is several, be provided with collection box 21 under the mouth 19 that falls, collection box 21 side fixedly connected with collection box handle 22, trapezoidal baffle 20 is two upper ends and the lower extreme that are fixed in pipeline clearance 18 side respectively, and pipeline clearance 18 below is equipped with spout 12, and the movable rod 24 top is connected with large-scale rubber connecting plate 23, and the movable rod 24 bottom is connected with small-size rubber connecting plate 26, and movable rod 24 externally mounted has reset spring 25.
Pipeline 1 installs in first installation base 2 and second installation base 29 top, the 2 outside of first installation base is equipped with second installation base 29, 1 one side of pipeline is provided with first mobile control box 3, 1 opposite side of pipeline is provided with second mobile control box 15, microorganism storage ring 7 is installed in the 3 outside of first mobile control box, 3 sides of first mobile control box are provided with square door 10, microorganism storage ring 7 is installed inside 1 pipeline, square door 10 side fixedly connected with U-shaped handle 11, square door 10 below is provided with spout 12.
12 bottom surfaces of spout are connected with spout fixing base 13, spout fixing base 13 side is connected with pipeline 1, installation piece 27 is installed to first pulley 14 both sides, installation piece 27 bottom is connected with large-scale rubber connecting plate 23, large-scale rubber connecting plate 23 below is provided with small-size rubber connecting plate 26, connecting piece 16 is installed at 15 tops of second mobile control box, connecting piece 16 side is fixed with pipeline clearance spare connecting piece 17, pipeline clearance spare connecting piece 17 side is connected with pipeline clearance spare 18, reset spring 25 top is connected with large-scale rubber connecting plate 23, reset spring 25 bottom is connected with small-size rubber connecting plate 26, small-size rubber connecting plate 26 bottom surface is connected with second mobile control box 15.
This practical theory of operation:
referring to the accompanying drawings 1-9, in use of the device, first, the first motion control box 3 is started, the first motion control box 3 drives the second pulley 28 below to slide along the sliding groove 12 to the inside of the pipeline 1, while the first pulley 14 located above the first movement control housing 3 also slides inside the pipe 1, after the microorganism storage ring 7 enters the pipeline 1, the driving motor 4 can drive the rotating shaft 5 and the rotating disc 6 to rotate, then the microorganism storage ring 7 is driven to rotate at a high speed, at this time, the horn-shaped nozzle 9 positioned on the microorganism storage ring 7 can quantitatively spray the microorganisms to the inner wall of the pipeline 1, after the horn-shaped nozzle 9 sprays the microorganisms to the inner wall of the pipeline 1, the flared nozzle 9 will return to the original position under the driving of the first movement control box 3, the first pulley 14 and the second pulley 28; injecting quantitative microorganism into the pipeline, rapidly propagating the microorganism by using the temperature and humidity environment in the pipeline, synthesizing and decomposing with bacterial flora in the pipeline to obtain beneficial bacterial flora, and collecting or discharging towards the end of the pipeline
Referring to the attached drawings 1-9 of the specification, when the device is used, after a certain amount of microbes are injected into the pipeline 1, the microbes can utilize the temperature and humidity environment in the pipeline to rapidly propagate and synthesize and decompose with bacterial flora in the pipeline to become beneficial flora, after the inside of the pipeline 1 becomes beneficial flora completely, the second mobile control box 15 is started, the second mobile control box 15 drives the second pulley 28 below the second mobile control box to slide towards the inside of the pipeline 1 along the chute 12, meanwhile, the first pulley 14 above the first mobile control box 3 also slides into the pipeline 1, when the pipeline cleaning piece 18 enters the inside of the pipeline 1, the pipeline cleaning piece 18 can clean the beneficial flora on the inner wall of the pipeline 1, the beneficial flora on the inner wall of the pipeline 1 is collected continuously along with the pipeline cleaning piece 18, and then the beneficial flora can fall into the collection box 21 through the plurality of falling ports 19, after the pipeline cleaning member 18 collects the beneficial bacteria on the inner wall of the pipeline 1, the pipeline cleaning member 18 returns to the original position under the driving of the second movement control box 15, the first pulley 14 and the second pulley 28, and at this time, the user only needs to pull out the collection box 21 through the collection box handle 22.

Claims (9)

1. The utility model provides an use microbial reaction of bio-pharmaceuticals to pipeline cleaning technology, includes pipeline (1), driving motor (4), first pulley (14), second mobile control box (15), pipeline clearance spare (18), trapezoidal baffle (20) and movable rod (24), its characterized in that: the device is characterized in that the driving motor (4) is installed inside the first mobile control box body (3), the output end of the driving motor (4) is connected with a rotating shaft (5), the outer wall of the rotating shaft (5) is connected with a rotating disc (6), the outer wall of the rotating disc (6) is connected with a microorganism storage ring (7), the outer surface of the microorganism storage ring (7) is provided with a spray pipe (8), the end part of the spray pipe (8) is provided with horn-shaped nozzles (9), the number of the horn-shaped nozzles (9) is two, a second pulley (28) is installed below the first pulley (14), the second pulley (28) is installed inside the sliding groove (12), a falling opening (19) is formed in the lower end of the inner wall of the pipeline cleaning piece (18), the number of the falling openings (19) is set to be several, and a collection box body (21) is arranged under the falling opening (19), collect box (21) side fixedly connected with and collect box handle (22), trapezoidal baffle (20) are two upper ends and the lower extreme that are fixed in pipeline clearance piece (18) side respectively, pipeline clearance piece (18) below is equipped with spout (12), movable rod (24) top is connected with large-scale rubber connecting plate (23), movable rod (24) bottom is connected with small-size rubber connecting plate (26), movable rod (24) externally mounted has reset spring (25).
2. The biopharmaceutical microbial reaction-on-line cleanup technique of claim 1, wherein: the pipeline (1) is installed at the tops of a first installation base (2) and a second installation base (29), the second installation base (29) is arranged on the outer side of the first installation base (2), a first mobile control box body (3) is arranged on one side of the pipeline (1), and a second mobile control box body (15) is arranged on the other side of the pipeline (1).
3. The biopharmaceutical microbial reaction-on-line cleanup technique of claim 2, wherein: microorganism storage ring (7) are installed in first mobile control box (3) outside, first mobile control box (3) side is provided with square door (10), microorganism storage ring (7) are installed inside pipeline (1).
4. The biopharmaceutical microbial reaction-on-line cleanup technique of claim 3, wherein: the side face of the square door (10) is fixedly connected with a U-shaped handle (11), and a sliding groove (12) is arranged below the square door (10).
5. The biopharmaceutical microbial reaction-on-line cleanup technique of claim 4, wherein: the bottom surface of the sliding chute (12) is connected with a sliding chute fixing seat (13), and the side surface of the sliding chute fixing seat (13) is connected with a pipeline (1).
6. The biopharmaceutical microbial reaction-on-line cleanup technique of claim 1, wherein: installation pieces (27) are installed on two sides of the first pulley (14), a large rubber connecting plate (23) is connected to the bottom of each installation piece (27), and a small rubber connecting plate (26) is arranged below each large rubber connecting plate (23).
7. The biopharmaceutical microbial reaction-on-line cleanup technique of claim 1, wherein: and a connecting piece (16) is installed at the top of the second mobile control box body (15), and a pipeline cleaning piece connecting piece (17) is fixed on the side surface of the connecting piece (16).
8. The biopharmaceutical microbial reaction-on-line cleanup technique of claim 7, wherein: the side surface of the pipeline cleaning piece connecting piece (17) is connected with a pipeline cleaning piece (18).
9. The biopharmaceutical microbial reaction-on-line cleanup technique of claim 1, wherein: the top of the reset spring (25) is connected with a large rubber connecting plate (23), the bottom of the reset spring (25) is connected with a small rubber connecting plate (26), and the bottom surface of the small rubber connecting plate (26) is connected with a second mobile control box body (15).
CN202210621287.4A 2022-06-01 2022-06-01 Pipeline cleaning technology by using microbial reaction of biological pharmacy Pending CN114985386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210621287.4A CN114985386A (en) 2022-06-01 2022-06-01 Pipeline cleaning technology by using microbial reaction of biological pharmacy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210621287.4A CN114985386A (en) 2022-06-01 2022-06-01 Pipeline cleaning technology by using microbial reaction of biological pharmacy

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102115262A (en) * 2009-12-31 2011-07-06 上海泓宝绿色水产科技发展有限公司 Preparation method of pipe dredging bacterium police composite microbial product capable of removing fouling and odor in drainage pipe and use thereof
CN105542986A (en) * 2016-01-15 2016-05-04 中林山水(北京)生态科技股份有限公司 Pipeline oil stain cleaning agent and preparation method thereof
US20190309248A1 (en) * 2017-01-06 2019-10-10 Locus Ip Company, Llc Novel Fermentation Systems and Methods
CN210509118U (en) * 2019-08-16 2020-05-12 陕西延长石油(集团)有限责任公司研究院 Waste oil well shaft in-situ cleaning system
CN112404047A (en) * 2020-04-01 2021-02-26 上海欧勋机电工程有限公司 Pipeline cleaning device for pure water pipeline
CN112958552A (en) * 2021-04-20 2021-06-15 宁乡新奥燃气有限公司 Automatic cleaning device of natural gas line
CN214516532U (en) * 2021-01-06 2021-10-29 香港天峻水處理節能科技有限公司 Novel ventilating duct detects disinfection device
CN215940940U (en) * 2021-11-01 2022-03-04 山东积高环境工程有限公司 Urban drainage pipeline repairing device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102115262A (en) * 2009-12-31 2011-07-06 上海泓宝绿色水产科技发展有限公司 Preparation method of pipe dredging bacterium police composite microbial product capable of removing fouling and odor in drainage pipe and use thereof
CN105542986A (en) * 2016-01-15 2016-05-04 中林山水(北京)生态科技股份有限公司 Pipeline oil stain cleaning agent and preparation method thereof
US20190309248A1 (en) * 2017-01-06 2019-10-10 Locus Ip Company, Llc Novel Fermentation Systems and Methods
CN210509118U (en) * 2019-08-16 2020-05-12 陕西延长石油(集团)有限责任公司研究院 Waste oil well shaft in-situ cleaning system
CN112404047A (en) * 2020-04-01 2021-02-26 上海欧勋机电工程有限公司 Pipeline cleaning device for pure water pipeline
CN214516532U (en) * 2021-01-06 2021-10-29 香港天峻水處理節能科技有限公司 Novel ventilating duct detects disinfection device
CN112958552A (en) * 2021-04-20 2021-06-15 宁乡新奥燃气有限公司 Automatic cleaning device of natural gas line
CN215940940U (en) * 2021-11-01 2022-03-04 山东积高环境工程有限公司 Urban drainage pipeline repairing device

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Application publication date: 20220902

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