CN111156408A - System for storing liquid and removing residual liquid - Google Patents
System for storing liquid and removing residual liquid Download PDFInfo
- Publication number
- CN111156408A CN111156408A CN201811327584.8A CN201811327584A CN111156408A CN 111156408 A CN111156408 A CN 111156408A CN 201811327584 A CN201811327584 A CN 201811327584A CN 111156408 A CN111156408 A CN 111156408A
- Authority
- CN
- China
- Prior art keywords
- liquid
- pipeline
- storage tank
- liquid storage
- infusion pipeline
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/0535—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning device being restricted in its movement by a cable or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
- B08B9/0553—Cylindrically shaped pigs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/013—Single phase liquid
Abstract
The invention relates to the field of loading and unloading of liquefied hydrocarbon, and discloses a system for storing liquid and removing residual liquid, which comprises: the liquid storage tank (1), the liquid inlet of the liquid storage tank is communicated with a transfusion pipeline (2), and a gas release port (2a) is arranged on the transfusion pipeline; the blind plate (3) is used for plugging one end of the infusion pipeline, which is far away from the liquid storage tank; the clear liquid plunger (4) is arranged in the infusion pipeline and is positioned at one end of the infusion pipeline; the gas supply device (5) is communicated with the infusion pipeline and is used for providing high-pressure gas for the infusion pipeline so as to push the clear liquid plunger to move towards the liquid storage tank along the infusion pipeline; and the stop piece (6) is positioned in the infusion pipeline and is close to the liquid storage tank, and the stop piece can prevent the clear liquid plunger from continuously moving along the direction of the infusion pipeline towards the liquid storage tank. According to the invention, the residual liquid in the infusion pipeline can be effectively removed through the system for storing the liquid and removing the residual liquid, so that the environmental pollution is reduced, and the safety of loading and unloading operation is ensured.
Description
Technical Field
The invention relates to the field of liquefied hydrocarbon loading and unloading, in particular to a system for storing liquid and removing residual liquid.
Background
Currently, there are various problems associated with the handling of some chemical liquids after the handling is completed. Taking liquefied hydrocarbon as an example, because the liquefied hydrocarbon is extremely easy to vaporize, particularly in summer, the liquefied hydrocarbon is particularly obvious, so that in order to ensure normal loading of the liquefied hydrocarbon in summer, the traditional method is to mix high-temperature gas phase in a tank car and low-temperature liquid phase at an outlet of a loading pump through vacuum drainage of an ejector, and therefore non-condensable gas in the tank car is prevented from entering a liquefied hydrocarbon ball tank.
However, in the liquefied hydrocarbon loading process, after the male connector and the female connector of the quick connector are successfully connected, the liquefied hydrocarbon enters the tank car storage tank through the crane pipe, the connecting pipeline, the quick connector and the like, after loading is finished, liquid liquefied hydrocarbon remains in the connecting pipeline, and an operator discharges residual liquid in the connecting pipeline into the atmosphere, so that the liquid liquefied hydrocarbon is instantly vaporized and enters the atmosphere. Thus, not only air pollution is caused, but also liquefied hydrocarbon is discharged to the ambient atmosphere for a long time when the loading and unloading vehicle is busy, so that an explosion environment is easily formed, and the operation safety of the loading and unloading platform is seriously influenced.
Therefore, it is desirable to provide a system for storing liquid and removing residual liquid, which can prevent air pollution caused by residual liquid in pipelines after loading chemical liquids such as liquefied hydrocarbons and the like, and even affect the health of workers.
Disclosure of Invention
The invention aims to solve the problems of environmental pollution and influence on the health of workers in the prior art, and provides a system for storing liquid and removing residual liquid.
In order to accomplish the above object, the present invention provides, in one aspect, a system for storing a liquid and removing a residual liquid, the system comprising:
the liquid storage tank is communicated with a liquid inlet of the liquid storage tank through a liquid conveying pipeline, and a gas release opening capable of being opened and closed is formed in the liquid conveying pipeline;
the blind plate is used for plugging one end of the infusion pipeline, which is far away from the liquid storage tank;
a clear liquid plunger disposed in the infusion pipeline and located at the one end of the infusion pipeline;
a gas supply device in communication with the infusion line for providing high pressure gas to the infusion line to urge the supernatant plunger to move along the infusion line towards the liquid reservoir;
the stop part is positioned in the infusion pipeline and is close to the liquid storage tank, and the stop part can stop the clear liquid plunger from moving continuously along the direction of the liquid storage tank towards the infusion pipeline.
Preferably, the system comprises a traction part for resetting the clear liquid plunger, one end of the traction part is fixed with the end part of the clear liquid plunger far away from the liquid storage tank, and the other end of the traction part is fixed with the blind plate.
Preferably, the gas release opening is communicated with a discharge pipeline, and a first valve for opening and closing the release opening is arranged on the discharge pipeline.
Preferably, the infusion pipeline comprises a first pipeline and a second pipeline extending out of the middle of the first pipeline, one end of the first pipeline is communicated with the liquid inlet of the liquid storage tank, the other end of the first pipeline is detachably plugged through the blind plate, and the end of the second pipeline is used for being connected with a liquid supply end.
Preferably, the second pipeline is a crane pipe.
Preferably, first pipeline with the second pipeline is divided into first pipe portion and second pipe portion as the boundary line, first pipe portion is for being close to the part of liquid storage pot, first pipe portion is including dismantling first branch pipeline and the second branch pipeline of connection, first branch pipeline and second branch pipeline pass through quick-operation joint and connect, quick-operation joint include public head and with public first complex female head.
Preferably, a second valve is arranged on the first pipe part at a position close to the liquid storage tank, and the stop member is positioned between the quick coupling and the second valve and close to the second valve.
Preferably, a third valve is arranged on the second pipeline; and a fourth valve is arranged at the position, close to the second pipeline, of the second pipe part.
Preferably, the stop piece is a limit boss fixed on the pipe wall of the infusion pipeline.
Preferably, the gas supply device is a high pressure nitrogen cylinder.
In the invention, the system for storing liquid and removing residual liquid can effectively remove residual liquid in the infusion pipeline, reduce environmental pollution and ensure the safety of loading and unloading operation, and particularly, the system is especially important for removing the residual liquid in the infusion pipeline, which is harmful to human bodies (such as liquefied hydrocarbon).
Drawings
FIG. 1 is a schematic diagram of a system for storing liquids and removing raffinates according to an embodiment of the present invention.
Description of the reference numerals
1-a liquid storage tank; 2-a liquid conveying pipeline;
2 a-a gas release port; 2 b-a first conduit;
2 b-1-a first tube portion; 2 b-2-a second tube portion;
2 c-a second conduit; 3-a blind plate;
4-clear liquid plunger; 5-a gas supply device;
6-a stop member; 7-a first valve;
8-a quick coupling; 9-a second valve;
10-a third valve; 11-a fourth valve;
12-a fifth valve; 13-traction section.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, use of directional terms such as "upper, lower, left, right, top, bottom" is generally made with respect to the orientation shown in the drawings or with respect to the positional relationship of the components with respect to each other in the vertical, or gravitational direction. The term "inside" and "outside" refer to the inside and the outside of the contour of each member itself. In addition, "a plurality" referred to in the present invention means two or more and includes two.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
According to an aspect of the present invention, as shown in fig. 1, the embodiment of the present invention provides a system for storing liquid and removing residual liquid, comprising a liquid storage tank 1, a blind plate 3, a clear liquid plunger 4, a gas supply means 5, and a stopper 6. Wherein, the inlet department intercommunication of liquid storage pot 1 has infusion pipeline 2, be provided with the gas release mouth 2a that can open and close on the infusion pipeline 2, blind plate 3 is used for the shutoff in the one end of keeping away from liquid storage pot 1 of infusion pipeline 2, clear solution plunger 4 sets up in infusion pipeline 2 and is located infusion pipeline 2 one end, gas supply device 5 and infusion pipeline 2 intercommunication for provide high-pressure gas in order to promote clear solution plunger 4 and move towards liquid storage pot 1 along infusion pipeline 2 to infusion pipeline 2, stop part 6 is located infusion pipeline 2 and is close to liquid storage pot 1 and sets up, stop part 6 can prevent clear solution plunger 4 and continue to move along the direction of infusion pipeline 2 towards liquid storage pot 1.
The system for storing liquid and removing residual liquid provided by the invention is used for conveying liquid (such as liquefied hydrocarbon) into the liquid storage tank 1 and storing the liquid in the liquid storage tank 1 (which can be understood as loading operation) and is used for removing residual liquid in the infusion pipeline 2 after the loading operation is finished. Specifically, before the loading operation, the blind plate 3 is firstly opened, the clear liquid plunger 4 is placed in the infusion pipeline 2, the loading operation is started, after the loading operation is completed, high-pressure gas is filled into the infusion pipeline 2 through the gas supply device 5, under the pushing of the high-pressure gas, the clear liquid plunger 4 moves towards the liquid storage tank 1 along the infusion pipeline 2, residual liquid in the infusion pipeline 2 is pushed to move towards the liquid storage tank 1 in the moving process of the clear liquid plunger 4, when the clear liquid plunger 4 moves to the position of the stop part 6, the stop part 6 stops the clear liquid plunger 4 from continuing to move towards the liquid storage tank 1, and the clear liquid flow is ended. Since the stop member 6 is located in the infusion pipeline 2 and close to the liquid storage tank 1, the residual liquid in the infusion pipeline 2 is substantially completely removed to the liquid storage tank 1, and of course, in order to remove the residual liquid in the infusion pipeline 2 as much as possible, the stop member 6 should be located as close to the liquid storage tank 1 as possible.
In the present invention, the system for storing liquid and removing residual liquid can effectively remove residual liquid in the infusion pipeline 2, reduce environmental pollution, and ensure safety of loading and unloading operations, and particularly, the removal of residual liquid in the infusion pipeline 2 is particularly important for liquids (such as liquefied hydrocarbons) harmful to the human body.
In order to return the clear liquid plunger 4 to the initial position (i.e. reset) after the clear liquid process is finished, preferably, the system comprises a traction part 13 for resetting the clear liquid plunger 4, one end of the traction part 13 is fixed with the end of the clear liquid plunger 4 far away from the liquid storage tank 1, and the other end of the traction part 13 is fixed with the blind plate 3, so that the clear liquid plunger 4 can be pulled back to the initial position through the traction part 13 after the clear liquid process is finished. The pulling part 13 may have various structures, for example, the pulling part 13 may be a spring.
Wherein, the opening and closing of the release port 2a on the transfusion pipeline 2 can be realized by a proper way, for example, the release port 2a is tied by a string, and the string is untied when the release port 2a needs to be opened. In the present embodiment, in order to facilitate the operation and improve the opening and closing efficiency of the release port 4b, it is preferable that a discharge line for opening and closing the release port 2a is connected to the gas release port 2a, and the discharge line is provided with a first valve 7 for opening and closing the release port 2 a. Thus, the opening and closing of the release port 2a can be accomplished only by operating the first valve 7 as needed. In addition, the release port 2a may be provided on the second tube portion 2b-2 on the side of the supernatant plunger 4 adjacent to the reservoir 1. Further, a tapered portion for guiding may be formed at a side of the serum plunger 4 adjacent to the reservoir tank 1.
Further, the infusion pipeline 2 comprises a first pipeline 2b and a second pipeline 2c extending out of the middle of the first pipeline 2b, one end of the first pipeline 2b is communicated with a liquid inlet of the liquid storage tank 1, the other end of the first pipeline 2b is detachably plugged through a blind plate 3, and the end of the second pipeline 2c is used for being connected with a liquid supply end. That is, in this case, the liquid supply line 2 is a T-shaped line. In this way, when the liquid storage tank 1 is used, liquid can be delivered to the liquid storage tank 1 through the second pipeline 2c (wherein, in order to improve adaptability, the second pipeline 2c is preferably a crane pipe), and after loading operation is completed, residual liquid in the liquid delivery pipeline 2 (specifically, residual liquid in the first pipeline 2b) can be removed through the clear liquid plunger 4. It should be noted that the "middle portion" herein is not limited to the middle portion, but includes the remaining portions except the end portions.
Further, the first pipe 2b is divided into a first pipe portion 2b-1 and a second pipe portion 2b-2 by a second pipe 2c, and the first pipe portion 2b-1 is a portion close to the liquid storage tank 1, that is, a portion on the left side of the second pipe 2c in fig. 1 is the first pipe portion 2b-1, and a portion on the right side of the second pipe 2c is the second pipe portion 2 b-2. Wherein, first pipe portion 2b-1 is including dismantling first branch pipeline and the second branch pipeline of connection, first branch pipeline and second branch pipeline pass through quick-operation joint 8 and connect, quick-operation joint 8 include public head and with public first complex female head, specifically, public head and female head can realize its cooperation through threaded connection.
Wherein, for the convenience of control and operation, a second valve 9 is arranged on the first pipe part 2b-1 at a position close to the liquid storage tank 1, and the stop member 6 is positioned between the quick coupling 8 and the second valve 9 and close to the second valve 9. Similarly, the second pipeline 2c is provided with a third valve 10, and the second pipe portion 2b-2 is provided with a fourth valve 11 at a position close to the second pipeline 2 c.
In addition, the stop member 6 may be any structure capable of stopping the movement of the supernatant plunger 4 and not affecting the liquid delivery to the liquid storage tank 1, for example, the stop member 6 is a limit boss fixed on the pipe wall of the infusion pipeline 2. Specifically, the limiting boss can be fixed on the top wall of the infusion pipeline 2.
The high-pressure gas used in removing the residual liquid in the infusion pipeline 2 may be any gas harmless to human body, such as high-pressure nitrogen, in which case the gas supply device 5 is a high-pressure nitrogen cylinder. In order to control the gas supply device 5, the liquid delivery pipeline 2 and the gas supply device 5 may be communicated with each other through a pipeline (specifically, the pipeline is communicated with the liquid delivery pipeline 2 through the blind plate 3), and the pipeline is provided with a fifth valve 12. This allows the gas supply means 5 to be opened and closed by operating the fifth valve 12, which is easy and convenient to operate. In the present invention, the first valve 7, the second valve 9, the third valve 10, the fourth valve 11, and the fifth valve 12 may be ball valves.
In the present invention, in order to more clearly understand the present invention, taking liquefied hydrocarbons as an example, the following will describe in detail the storage of liquid (which may be regarded as a truck-loading operation) and the removal of residual liquid (which may be regarded as a residue removal operation) in the transfer line 2 by using the system for storing liquid and removing residue, specifically:
before the loading operation is carried out, the blind plate 3 is opened, the clear liquid plunger 4 is placed into the infusion pipeline 2, one end of the traction part 13 is fixed with the clear liquid plunger 4, and the other end of the traction part 13 is fixed with the blind plate 3. And (3) closing the fourth valve 11, the first valve 7 and the fifth valve 12, starting the liquefied hydrocarbon loading operation after the male connector and the female connector of the quick connector 8 are successfully connected, opening the third valve 10 and the second valve 9, allowing the liquefied hydrocarbon to enter the liquid storage tank 1 through the second pipeline 2c, the third valve 10, the quick connector 8 and the second valve 9 respectively, completing the loading operation after a period of time, and then performing residual liquid removal operation. Specifically, when the loading operation is finished, the third valve 10 is closed, the fourth valve 11 and the fifth valve 12 are opened, the high-pressure nitrogen is filled into the infusion pipeline 2, the clear liquid plunger 4 is continuously pushed towards the liquid storage tank 1 along the first pipeline 2b under the pushing of the high-pressure nitrogen, the clear liquid plunger 4 pushes the residual liquid in the infusion pipeline 2 to move towards the liquid storage tank 1 in the pushing process, when the clear liquid plunger 4 moves to the position of the stop part 6, the stop part 6 stops the clear liquid plunger 4 from continuously moving towards the liquid storage tank 1, and the clear liquid flow is finished. At this time, the second valve 9 and the fifth valve 12 are closed, the first valve 7 is opened, and the high-pressure nitrogen gas in the transfusion pipeline 2 is gradually released from the release port 2 a. When the release is finished, the blind plate 3 is opened, the clear liquid plunger 4 is pulled back through the traction part 13, then the male and female ends of the quick connector 8 are separated, and the fourth valve 11 is closed.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the individual specific technical features in any suitable way. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (10)
1. A system for storing a liquid and removing raffinate, the system comprising:
the liquid storage tank (1), the liquid inlet of the liquid storage tank (1) is communicated with a transfusion pipeline (2), and the transfusion pipeline (2) is provided with a gas release port (2a) which can be opened and closed;
the blind plate (3) is used for plugging one end, far away from the liquid storage tank (1), of the infusion pipeline (2);
a clear liquid plunger (4), the clear liquid plunger (4) being disposed in the infusion pipeline (2) and located at the one end of the infusion pipeline (2);
a gas supply device (5), the gas supply device (5) being in communication with the infusion pipeline (2) for providing high pressure gas to the infusion pipeline (2) to push the supernatant plunger (4) to move along the infusion pipeline (2) towards the liquid storage tank (1);
the stop part (6), the stop part (6) are located in the infusion pipeline (2) and are close to the liquid storage tank (1) is arranged, and the stop part (6) can prevent the clear liquid plunger (4) from moving continuously along the direction of the liquid storage tank (1) towards the infusion pipeline (2).
2. The system for storing liquids and removing residuals according to claim 1, characterized in that it comprises a traction portion (13) for resetting said clear liquid plunger (4), one end of said traction portion (13) being fixed to the end of said clear liquid plunger (4) remote from said tank (1), the other end of said traction portion (13) being fixed to said blind plate (3).
3. System for storing liquids and removing residues according to claim 1, characterized in that said gas release opening (2a) is connected to a discharge line provided with a first valve (7) for opening and closing said release opening (2 a).
4. The system for storing liquid and removing residual liquid according to claim 1, wherein the liquid conveying pipeline (2) comprises a first pipeline (2b) and a second pipeline (2c) extending from the middle of the first pipeline (2b), one end of the first pipeline (2b) is communicated with the liquid inlet of the liquid storage tank (1), the other end of the first pipeline (2b) is detachably plugged by the blind plate (3), and the end of the second pipeline (2c) is used for connecting a liquid supply end.
5. System for storing liquids and removing raffinates according to claim 4, characterized in that the second line (2c) is a crane pipe.
6. The system for storing liquid and removing residual liquid according to claim 4, wherein said first pipe (2b) is divided into a first pipe portion (2b-1) and a second pipe portion (2b-2) with said second pipe (2c) as a boundary, said first pipe portion (2b-1) is a portion close to said liquid storage tank (1), said first pipe portion (2b-1) comprises a first branch pipe and a second branch pipe detachably connected, said first branch pipe and said second branch pipe are connected by a quick coupling (8), said quick coupling (8) comprises a male head and a female head fitted to said male head.
7. System for storing liquids and removing residuals according to claim 6, characterized in that a second valve (9) is arranged on said first pipe section (2b-1) close to said reservoir (1), said stop (6) being located between said quick coupling (8) and said second valve (9) and close to said second valve (9).
8. System for storing liquids and removing residues according to claim 6, characterized in that said second line (2c) is provided with a third valve (10); and a fourth valve (11) is arranged at the position, close to the second pipeline (2c), of the second pipe part (2 b-2).
9. System for storing liquids and removing raffinates according to claim 1, characterized in that the stop (7) is a limit boss fixed on the wall of the infusion line (2).
10. System for storing liquids and removing raffinates according to claim 1, characterized in that the gas supply means (5) is a high-pressure nitrogen cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811327584.8A CN111156408A (en) | 2018-11-08 | 2018-11-08 | System for storing liquid and removing residual liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811327584.8A CN111156408A (en) | 2018-11-08 | 2018-11-08 | System for storing liquid and removing residual liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111156408A true CN111156408A (en) | 2020-05-15 |
Family
ID=70555237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811327584.8A Pending CN111156408A (en) | 2018-11-08 | 2018-11-08 | System for storing liquid and removing residual liquid |
Country Status (1)
| Country | Link |
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| CN (1) | CN111156408A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111974770A (en) * | 2020-08-04 | 2020-11-24 | 中冶北方（大连）工程技术有限公司 | Pneumatic filling device and method for disc type scaler |
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| US20140283876A1 (en) * | 2011-11-30 | 2014-09-25 | Fras Technology As | Cleaning pig |
| CN104307819A (en) * | 2014-10-14 | 2015-01-28 | 中国石油天然气股份有限公司 | Combined cleaning method of waste oil and gas pipeline residues |
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| CN107433273A (en) * | 2017-08-08 | 2017-12-05 | 中石化河南油建工程有限公司 | A kind of discarded crude oil pipeline method for innocent treatment |
| CN207298380U (en) * | 2017-10-10 | 2018-05-01 | 上海麦润机械有限公司 | A kind of retracting device of conveyance conduit salvage stores |
| CN108746102A (en) * | 2018-05-04 | 2018-11-06 | 南安易盾格商贸有限公司 | A kind of environment-friendly type petroleum pipeline washer |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6438782B1 (en) * | 1997-01-17 | 2002-08-27 | Hygienic Pigging Systems Limited | Apparatus for removing material from pipelines and method of making |
| US20140283876A1 (en) * | 2011-11-30 | 2014-09-25 | Fras Technology As | Cleaning pig |
| CN104470829A (en) * | 2012-06-07 | 2015-03-25 | 马里凯普有限公司 | Method for cleaning the piping of a pneumatic materials handling system, and a cleaning apparatus, and a system |
| CN104014562A (en) * | 2014-05-20 | 2014-09-03 | 天津市管道工程集团有限公司 | Process for cleaning whole inner wall of long pipeline for high-purity gas |
| CN104307819A (en) * | 2014-10-14 | 2015-01-28 | 中国石油天然气股份有限公司 | Combined cleaning method of waste oil and gas pipeline residues |
| CN107433273A (en) * | 2017-08-08 | 2017-12-05 | 中石化河南油建工程有限公司 | A kind of discarded crude oil pipeline method for innocent treatment |
| CN207298380U (en) * | 2017-10-10 | 2018-05-01 | 上海麦润机械有限公司 | A kind of retracting device of conveyance conduit salvage stores |
| CN108746102A (en) * | 2018-05-04 | 2018-11-06 | 南安易盾格商贸有限公司 | A kind of environment-friendly type petroleum pipeline washer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111974770A (en) * | 2020-08-04 | 2020-11-24 | 中冶北方（大连）工程技术有限公司 | Pneumatic filling device and method for disc type scaler |
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Application publication date: 20200515 |
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| RJ01 | Rejection of invention patent application after publication |