CN115156212A - Marine large-diameter piping system aeroelastic cleaning and air tightness test device - Google Patents
Marine large-diameter piping system aeroelastic cleaning and air tightness test device Download PDFInfo
- Publication number
- CN115156212A CN115156212A CN202210726572.2A CN202210726572A CN115156212A CN 115156212 A CN115156212 A CN 115156212A CN 202210726572 A CN202210726572 A CN 202210726572A CN 115156212 A CN115156212 A CN 115156212A
- Authority
- CN
- China
- Prior art keywords
- flange
- mortise
- short pipe
- cleaning
- pipe
- 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
- 238000004140 cleaning Methods 0.000 title claims abstract description 33
- 238000012360 testing method Methods 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 239000004429 Calibre Substances 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 9
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 8
- 238000005406 washing Methods 0.000 description 4
- 239000010425 asbestos Substances 0.000 description 3
- 229910052895 riebeckite Inorganic materials 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- B08B9/057—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 being entrained discrete elements, e.g. balls, grinding elements, brushes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a marine large-diameter piping system aeroelastic cleaning and air tightness test device, which comprises: the quick-release locking mechanism comprises short pipes, tongue-and-groove flanges, a quick-release locking mechanism, hinges, an air inlet quick connector and a pipeline connecting port; the lower end of the short pipe is provided with a pipeline connecting port, the outer side of the short pipe is provided with an air inlet quick connector, and the upper end of the short pipe is provided with a mortise flange comprising a mortise flange and a groove flange; the groove face flange is fixed at the upper end of the short pipe, and a plurality of openings are uniformly distributed at the edge of the tongue-and-groove flange; a plurality of quick detach locking mechanism arrange along circumference, and quick detach locking mechanism includes butterfly nut, eye bolt, bolt and supporting seat, and the supporting seat is established in the nozzle stub outside, and the hole installation bolt on the supporting seat, the eye bolt is established to the bolt cover, and eye bolt connects butterfly nut cooperation opening fixed tongue-and-groove flange soon. The problem of traditional emission rifle can't drive the sponge bullet of heavy-calibre to carry out the gas bullet cleanness to the pipeline, the gas bullet fills and relapses dismouting flange, wastes time and energy, inefficiency is solved.
Description
Technical Field
The invention relates to the field of design of ship piping cleaning construction tools, in particular to a marine large-diameter piping aeroelastic cleaning and air tightness test device.
Background
After a system pipeline on a common ship is installed on the ship, in order to ensure the cleanliness of the system, the whole system pipeline is cleaned, and cleaning modes such as gas purging, liquid serial washing, gas bomb passing and the like are usually selected. The requirement on the cleanliness of partial system pipelines is high, a conventional water serial washing scheme is adopted, the period is long, the effect is poor, the moisture is not easy to remove after serial washing, and the method is basically infeasible; the system medium is adopted for direct serial washing, so that the cost is high and the method is not economical; and the cleaning effect is very limited for large-caliber and long-distance pipelines by adopting gas purging. Therefore, the best solution is to clean the piping by means of a gas bomb cleaning method.
For small-caliber and long-distance system pipelines, a special air bomb launching gun can be used for launching small-caliber sponge air bombs to pass through the pipelines to remove foreign matters such as impurities in the pipelines, and for large-caliber and long-distance system pipelines, such as the system pipelines with DN being more than or equal to 100mm, the traditional launching gun cannot drive large-caliber sponge air bombs and cannot achieve the purpose of cleaning the pipelines.
The traditional ship field pipeline bullet-beating cleaning method generally comprises the steps of firstly plugging a gas bullet into a pipeline, then connecting a plurality of bolts and a pipeline end flange by using a blind flange with an inflation joint through a wrench and other tightening tools, wherein one pipeline is usually required to be beaten for dozens of times or even dozens of times according to the cleaning condition of the inner wall of the pipeline, so that the pipeline can be cleaned and qualified, the gas bullet is filled at each time, the process of repeatedly disassembling and assembling the flange is required, time and labor are wasted, and the efficiency is low.
Disclosure of Invention
The invention provides a marine large-diameter piping system air bomb cleaning and air tightness test device, which aims to solve the problems that a traditional gun cannot drive a large-diameter sponge air bomb to clean a pipeline in an air bomb manner, and the air bomb is filled and a flange is repeatedly disassembled and assembled, so that time and labor are wasted.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a clean and gas tightness test device of marine heavy-calibre piping system gas bomb, includes: the quick-release locking mechanism comprises short pipes, tongue-and-groove flanges, a quick-release locking mechanism, hinges, an air inlet quick connector and a pipeline connecting port; the lower end of the short pipe is provided with a pipeline connecting port, the outer side of the short pipe is provided with an air inlet quick connector, and the upper end of the short pipe is provided with a tongue-and-groove flange; the mortise flange comprises a mortise flange and a slot flange, the slot flange is fixed at the upper end of the short pipe, the mortise flange and the slot flange are hinged through a hinge and can rotate around a hinge shaft, an annular boss is arranged on the end face of the mortise flange, an annular groove is arranged on the end face of the slot flange, the annular boss of the mortise flange is inserted into the annular groove of the slot flange, a sealing ring is arranged between the annular boss and the annular groove, and a plurality of openings adaptive to the quick-release locking mechanisms are circumferentially and uniformly distributed on the edges of the mortise flange and the slot flange; the quick-release locking mechanisms are circumferentially arranged and comprise butterfly nuts, eyelet bolts, bolts and supporting seats, the supporting seats are arranged on the outer sides of the short pipes, the bolts are installed in holes in the supporting seats, the eyelet bolts are sleeved with the bolts, the butterfly nuts are screwed to the upper portions of the eyelet bolts, the eyelet bolts rotate around the bolts to drive the butterfly nuts, and the butterfly nuts are matched with the openings to fix the tenon-face blind flanges and the groove-face flanges.
Further, when the flange type pipeline connecting device is used for a pipeline with a flange, the pipeline connecting port is a flange short pipe, the flange short pipe comprises an elbow pipe and a plane flange, one end of the elbow pipe is arranged at the lower end of the short pipe, and the other end of the elbow pipe is provided with the plane flange.
Further, when the pipeline connecting port is used for a pipeline without a flange, the pipeline connecting port is a Strobo joint.
Further, the short pipe is a straight pipe.
Furthermore, the short pipe is a bent pipeline.
Furthermore, a handle is fixed on the upper end face of the tenon face blind flange.
Furthermore, the annular boss and the annular groove are in clearance fit.
The invention has the following beneficial effects:
1. the cleaning device has a simple structure, can be repeatedly utilized, the specification and the size of the short pipe are consistent with those of a pipeline to be cleaned, one end of the short pipe is provided with a pipeline connecting port, the pipeline connecting port is selected according to the actual condition of the end of the pipeline to be connected, the side surface of the short pipe is provided with the quick air inlet connector, the air bomb can be quickly connected with the air delivery hose when being cleaned, the air bomb is connected with an air source through the air delivery hose to provide power for the air bomb, the air bomb is plugged into the short pipe from the mortise flange, the mortise flange and the groove flange are matched with the sealing ring, the air tightness is ensured, the limitation of the traditional cleaning air gun on the cleaning of large-caliber and long pipelines is made up, and the cleaning device can be applied to the cleaning of various ship pipeline systems; 2. the opening is reserved to the tongue-and-groove flange, need not pull down butterfly nut completely, can be manual detain the pine with butterfly nut and realize that the aeroelastic fills fast, hinge and tongue-and-groove flange joint have guaranteed opening and shutting fast of tongue-and-groove flange promptly, drop when avoiding the tongue-and-groove flange dismouting simultaneously, and the installation is convenient with the dismantlement, has solved the clean aeroelastic of piping aeroelastic and has filled the problem that the dismouting flange is wasted time and energy repeatedly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are 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 front view of an embodiment of the marine large-diameter piping system bomb cleaning and air-tightness test device for a flanged pipeline according to the present disclosure;
FIG. 2 is a top view of an embodiment of the marine large-diameter piping system bomb cleaning and air-tightness test device for a flanged pipeline according to the present invention;
FIG. 3 is a front view of an embodiment of the marine large-diameter piping system bomb cleaning and air-tightness test device for a pipeline without a flange according to the present disclosure;
FIG. 4 isbase:Sub>A sectional view A-A ofbase:Sub>A tongue-and-groove flange of the marine large-diameter piping system aeroelastic cleaning and air-tightness test device disclosed by the invention;
FIG. 5 is a sectional view B-B of a tongue-and-groove flange of the marine large-diameter piping system bomb cleaning and air-tightness test device disclosed by the invention;
FIG. 6 is a cross-sectional view taken along line C-C of FIG. 5;
FIG. 7 is a cross-sectional view taken along line D-D of FIG. 6;
FIG. 8 is an enlarged view of portion I of FIG. 2;
FIG. 9 is a top view of an embodiment of the marine large caliber piping system bomb cleaning and air-tight test apparatus for a non-flanged pipeline according to the present disclosure;
in the figure: 1. the device comprises a short pipe, 2 parts of a tenon-surface blind flange, 2 parts of 1 part of an annular boss, 3 parts of an A part, an elbow, 3 parts of B parts of a Stewart joint, 4 parts of a groove-surface flange, 4 parts of 1 parts of an annular groove, 5 parts of a butterfly nut, 6 parts of an eyelet bolt, 7 parts of a bolt, 8 parts of a support seat, 9 parts of a hinge, 10 parts of an air inlet quick joint, 11 parts of a handle, 12 parts of a sealing ring, 13 parts of a plane flange.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment provides a marine large-diameter piping system bomb cleaning and air-tightness test device, as shown in fig. 1 to 9, comprising: the device comprises a short pipe 1, a tongue-and-groove flange, a quick-release locking mechanism, a hinge 9, an air inlet quick connector 10 and a pipeline connecting port; the lower end of the short pipe 1 is provided with a pipeline connecting port, the outer side of the short pipe 1 is provided with an air inlet quick connector 10, and the upper end of the short pipe 1 is provided with a mortise flange; the mortise flange comprises a mortise flange 2 and a mortise flange 4, the mortise flange 4 is welded at the upper end of the short pipe 1, the mortise flange 2 and the mortise flange 4 are hinged through a hinge 9 and can rotate around a hinge shaft of the hinge 9, an annular boss 2-1 is arranged on the end surface of the mortise flange 2, an annular groove 4-1 is arranged on the end surface of the mortise flange 4, the annular boss 2-1 of the mortise flange 2 is inserted into the annular groove 4-1 of the mortise flange 4, a sealing ring 12 is arranged between the annular boss 2-1 and the annular groove 4-1, and the edges of the mortise flange 2 and the mortise flange 4 are provided with 3 openings matched with the quick-release locking mechanisms for use; the quick-release locking mechanisms are circumferentially arranged and comprise butterfly nuts 5, eyelet bolts 6, bolts 7 and supporting seats 8, the supporting seats 8 are welded on the outer sides of the short pipes 1, the bolts 7 are installed in holes in the supporting seats 8, the eyelet bolts are sleeved with the bolts 7, the butterfly nuts 5 are screwed on the upper portions of the eyelet bolts 6, the eyelet bolts 6 rotate around the bolts 7 to drive the butterfly nuts 5, and the blind flanges 2 and the groove face flanges 4 are fixed by matching openings.
In a specific embodiment, the sealing ring 12 is made of rubber and asbestos, has good temperature resistance, pressure resistance, compression resilience and air tightness, and is suitable for sealing flange connection.
The specification and the size of the short pipe are consistent with those of a pipeline to be cleaned of a pipeline system on a ship, one end of the short pipe is provided with a pipeline connecting port, the pipeline connecting port is selected according to the actual condition of the end of the pipeline to be connected, the other end of the short pipe is provided with a mortise flange which is vertical to the axis of the short pipe, a rubber asbestos sealing ring is arranged between the mortise flanges, the air tightness is ensured by compressing the rubber asbestos sealing ring, the side surface of the short pipe is provided with an air inlet quick connector, the connector adopts a mature product, the quick connection of the air inlet quick connector and an air delivery hose is realized, an air source is connected through the air delivery hose to provide power for an air bomb, and the limitation of a traditional cleaning air gun on the cleaning of large-caliber long pipelines is compensated; as shown in fig. 4 and 5, the tongue-and-groove flange is provided with 3 gaps with an included angle of 120 degrees between adjacent gaps; 3 supporting seats matched with the openings are welded on the side face of the short pipe, a swing bolt on each supporting seat is combined with a butterfly nut, aeroelastic is filled into the short pipe from the mortise flange, the butterfly nut does not need to be completely dismounted, the mortise flange at the end part of the short pipe is quickly dismounted and locked through the loose buckle of the butterfly nut, and the aeroelastic is quickly filled; hinge welding is in the tongue-and-groove flange side, when satisfying the quick opening and shutting of tongue-and-groove flange, avoids at every turn the dismouting in-process tongue-and-groove flange to drop.
In a specific embodiment, when the pipe is used for a flanged pipe, the pipe connection port is a flange short pipe, the flange short pipe comprises an elbow 3-A and a plane flange 13, one end of the elbow is arranged at the lower end of the short pipe 1, the other end of the elbow is provided with the plane flange 13, and the axis of the end of the elbow welded with the plane flange is vertical to the plane flange.
In a specific embodiment, when the pipeline connecting device is used for a pipeline without a flange, the pipeline connecting port is a Stewart joint 3-B, and the Stewart joint is a mature product, is convenient to install and is suitable for a pipeline with a large pipe diameter.
In a specific embodiment, the short pipe 1 is a straight pipe.
In the specific embodiment, the short pipe 1 is a bent pipeline.
In a particular embodiment, a plurality of said pipe stubs 1 can be welded in combination.
Part of pipelines are arranged at the bottom of an isolation cabin or a floor frame or the top area of the cabin, the space is narrow, personnel can get in and out and operate extremely difficultly, two ends of the pipelines can be limited by the space of a cabin, and the traditional method requires that constructors need to ascend every time or difficultly drill into the narrow space for aeroelastic filling launching or air tightness test, is limited by the space, is difficult to operate and has low efficiency; the angle and the length can be adjusted through welding and combining the straight pipeline or the bent pipeline or the straight pipeline and the bent pipeline, the operation position is extended to a wide space according to flexible adjustment of actual demands, operation in a narrow space is avoided, safety and quickness of personnel are facilitated, air-bullet filling emission and air-tightness tests are carried out, and construction efficiency is improved.
In the specific embodiment, a handle 11 is fixed on the upper end face of the tenon blind flange 2, so that a person can conveniently open and close the mortise flange.
In a specific embodiment, as shown in fig. 8, the annular boss 2-1 and the annular groove 4-1 are in clearance fit, the gas bomb is filled repeatedly, the opening and closing frequency of the tongue-and-groove flange is high, if no clearance is provided, the annular boss and the annular groove can collide and wear, and a clearance is left for a person to operate conveniently.
The method has the advantages that feasibility verification is obtained in a real ship, practical operation of bullet striking and cleaning is achieved, the outer diameter of the maximum pipe reaches 219mm, and the longest pipeline reaches 150 meters; the pressure range of the air tightness test can be 1.0-1.5MPa, and the pipe diameter parameters are set according to actual requirements and are not limited to the pipe diameter and the length in the experiment of the embodiment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides a clean and gas tightness test device of marine heavy-calibre piping system aeroelastic which characterized in that includes: the device comprises short pipes (1), tongue-and-groove flanges, a quick-release locking mechanism, hinges (9), an air inlet quick connector (10) and a pipeline connecting port;
the lower end of the short pipe (1) is provided with a pipeline connecting port, the outer side of the short pipe (1) is provided with an air inlet quick connector (10), and the upper end of the short pipe (1) is provided with a mortise flange;
the mortise flange comprises a mortise blind flange (2) and a mortise flange (4), the mortise flange (4) is fixed at the upper end of the short pipe (1), the mortise blind flange (2) and the mortise flange (4) are hinged through a hinge (9) and can rotate around a hinge shaft of the hinge (9), an annular boss (2-1) is arranged on the end face of the mortise blind flange (2), an annular groove (4-1) is arranged on the end face of the mortise flange (4), the annular boss (2-1) of the mortise blind flange (2) is inserted into the annular groove (4-1) of the mortise flange (4), a sealing ring (12) is arranged between the annular boss (2-1) and the annular groove (4-1), and a plurality of openings used by adaptive locking mechanisms are circumferentially and uniformly distributed at the edge of the mortise blind flange (2) and the mortise flange (4);
it is a plurality of quick detach locking mechanism circumference is laid, quick detach locking mechanism includes butterfly nut (5), swing bolt (6), bolt (7) and supporting seat (8), establish in the nozzle stub (1) outside supporting seat (8), hole installation bolt (7) on supporting seat (8), swing bolt is established to bolt (7) cover, swing bolt (6) upper portion connects butterfly nut (5) soon, swing bolt (6) are around bolt (7) rotatory drive butterfly nut (5), cooperate the fixed tenon face blind flange of opening (2) and groove face flange (4).
2. The marine large-diameter piping system gas-bomb cleaning and gas-tightness test device according to claim 1, wherein when used for flanged pipelines, the pipeline connecting port is a flange short pipe, the flange short pipe comprises a bent pipe (3-A) and a plane flange (13), one end of the bent pipe is arranged at the lower end of the short pipe (1), and the other end of the bent pipe is provided with the plane flange (13).
3. The apparatus for testing the gas-bomb cleaning and gas-tightness of marine large-caliber pipe system according to claim 1, wherein the pipeline connecting port is a Strobo joint (3-B) when used for a pipeline without a flange.
4. The marine large-caliber piping system bomb cleaning and air-tightness test device according to claim 1, wherein the short pipe (1) is a straight pipe.
5. The marine large-caliber piping system aeroelastic cleaning and air-tightness test device according to claim 1, wherein the short pipe (1) is a bent pipeline.
6. The marine large-diameter piping system aeroelastic cleaning and air-tightness test device according to claim 1, wherein a handle (11) is fixed on the upper end face of the tenon face blind flange (2).
7. The marine large-caliber pipe system bomb cleaning and air-tightness test device according to claim 1, wherein the annular boss (2-1) and the annular groove (4-1) are in clearance fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210726572.2A CN115156212A (en) | 2022-06-23 | 2022-06-23 | Marine large-diameter piping system aeroelastic cleaning and air tightness test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210726572.2A CN115156212A (en) | 2022-06-23 | 2022-06-23 | Marine large-diameter piping system aeroelastic cleaning and air tightness test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115156212A true CN115156212A (en) | 2022-10-11 |
Family
ID=83488050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210726572.2A Pending CN115156212A (en) | 2022-06-23 | 2022-06-23 | Marine large-diameter piping system aeroelastic cleaning and air tightness test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115156212A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355427A (en) * | 2022-10-24 | 2022-11-18 | 中国航空工业集团公司北京长城计量测试技术研究所 | Anti-toppling support and support system for flow field test of test workshop |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105480385A (en) * | 2015-12-15 | 2016-04-13 | 广船国际有限公司 | Anti-loosing device for scuttle hatchcover |
| CN106733952A (en) * | 2016-12-27 | 2017-05-31 | 沪东中华造船(集团)有限公司 | The process of oil cleaning is thrown in rolling ship roll-on/roll-off facilities fluid pressure line depressed place for collecting |
| CN113682441A (en) * | 2021-06-30 | 2021-11-23 | 沪东中华造船(集团)有限公司 | Method for cleaning large-caliber long pipeline of ship by using cleaning foam bomb |
| CN216279373U (en) * | 2021-12-13 | 2022-04-12 | 北京中科宇航技术有限公司 | Flange sealing structure |
| CN114396511A (en) * | 2021-11-02 | 2022-04-26 | 安徽省生宸源材料科技实业发展股份有限公司 | Double-walled corrugated pipe self-sealing connecting flange joint |
| CN216743403U (en) * | 2021-11-10 | 2022-06-14 | 大连船舶重工集团有限公司 | Hinge type inert gas shore connection joint for ship |
-
2022
- 2022-06-23 CN CN202210726572.2A patent/CN115156212A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105480385A (en) * | 2015-12-15 | 2016-04-13 | 广船国际有限公司 | Anti-loosing device for scuttle hatchcover |
| CN106733952A (en) * | 2016-12-27 | 2017-05-31 | 沪东中华造船(集团)有限公司 | The process of oil cleaning is thrown in rolling ship roll-on/roll-off facilities fluid pressure line depressed place for collecting |
| CN113682441A (en) * | 2021-06-30 | 2021-11-23 | 沪东中华造船(集团)有限公司 | Method for cleaning large-caliber long pipeline of ship by using cleaning foam bomb |
| CN114396511A (en) * | 2021-11-02 | 2022-04-26 | 安徽省生宸源材料科技实业发展股份有限公司 | Double-walled corrugated pipe self-sealing connecting flange joint |
| CN216743403U (en) * | 2021-11-10 | 2022-06-14 | 大连船舶重工集团有限公司 | Hinge type inert gas shore connection joint for ship |
| CN216279373U (en) * | 2021-12-13 | 2022-04-12 | 北京中科宇航技术有限公司 | Flange sealing structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355427A (en) * | 2022-10-24 | 2022-11-18 | 中国航空工业集团公司北京长城计量测试技术研究所 | Anti-toppling support and support system for flow field test of test workshop |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115156212A (en) | Marine large-diameter piping system aeroelastic cleaning and air tightness test device | |
| CN101637769A (en) | Blowing method of pipeline | |
| CN107588280B (en) | Natural gas line expansive cylinder stopping transportation pressure method for blocking | |
| CN210770990U (en) | Open-air patching device of small-bore steel pipeline and repair structure | |
| RU2753714C1 (en) | Flushing system of dust collector with hose damage protection and dust collector | |
| CN210830997U (en) | Anti-leakage safety plugging device for pressure fluid pipeline | |
| CN101265829B (en) | Heat exchanger utilizing diesel tail gas thermal quantity and its valve control method | |
| RU2701811C1 (en) | Method of cutting and closing pipeline under pressure | |
| RU2732253C1 (en) | Combustion chamber burner device cleaning method and installation for its application | |
| CN216143218U (en) | Top-mounted floating ball valve | |
| KR101893861B1 (en) | Sealing closure for fixing filter strainer | |
| CN113682441A (en) | Method for cleaning large-caliber long pipeline of ship by using cleaning foam bomb | |
| KR101039255B1 (en) | Large caliber pipiline management system | |
| CN112878434A (en) | Fire hydrant convenient to quick connection hosepipe connects | |
| CN220697715U (en) | Flange type connecting ball receiving and transmitting cylinder with balance valve | |
| CN115739863B (en) | Matching equipment for lithium sulfate mixed solution crystallization system | |
| CN221003797U (en) | Novel stainless steel butterfly valve with blowing device | |
| CN114517862B (en) | Temporary communication device and method for dismantling transformer gas relay | |
| CN220828633U (en) | Heating and ventilation pipeline connection structure capable of being quickly connected | |
| CN221097817U (en) | Liquid discharge pipeline | |
| CN209909944U (en) | Industrial steam pipeline target practice equipment | |
| CN221482746U (en) | Flue check valve | |
| CN219472998U (en) | Partition control valve for water mist fire extinguishing equipment | |
| CN209943751U (en) | Pipeline blasting sweeps joint design | |
| CN110006061B (en) | Steam pipeline targeting device for chemical production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |