CN112524363A - Acid liquor exhaust pipe installs connection structure - Google Patents
Acid liquor exhaust pipe installs connection structure Download PDFInfo
- Publication number
- CN112524363A CN112524363A CN202011550320.6A CN202011550320A CN112524363A CN 112524363 A CN112524363 A CN 112524363A CN 202011550320 A CN202011550320 A CN 202011550320A CN 112524363 A CN112524363 A CN 112524363A
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- CN
- China
- Prior art keywords
- fixed
- connecting plate
- air pipe
- ventilation pipeline
- screw hole
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/12—Flanged joints specially adapted for particular pipes
- F16L23/14—Flanged joints specially adapted for particular pipes for rectangular pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/14—Hangers in the form of bands or chains
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
Abstract
The invention discloses an acid liquor exhaust pipeline installation and connection structure which comprises a first ventilation pipeline, wherein a first connection plate is fixed on the outer side of the first ventilation pipeline, a second ventilation pipeline is arranged on the inner side of the first ventilation pipeline, a second connection plate is fixed on the outer side of the second ventilation pipeline, a third ventilation pipeline is arranged on the outer side of the second ventilation pipeline, a fourth connection plate is fixed on the outer side of the third ventilation pipeline, and the first ventilation pipeline and the second ventilation pipeline are in clamping connection. This acidizing fluid exhaust pipe installs connection structure, acidic gas flows in from the right-hand member of first air pipe left, and the acidic liquid that flows down flows in first air pipe along second air pipe from third air pipe, flows in collecting the box from the collection mouth of the inboard bottom of first air pipe, has realized preventing the corruption of acidizing fluid to the pipeline and has handled the collection of acidizing fluid.
Description
Technical Field
The invention relates to the technical field of exhaust pipeline equipment, in particular to an acid liquor exhaust pipeline installation and connection structure.
Background
The air exhaust pipeline equipment is a metal or composite pipeline for ventilation and air conditioning engineering of industrial and civil buildings, is a municipal infrastructure for circulating air and reducing the concentration of harmful gas, and is characterized in that plates, sections and other main finished product materials used for manufacturing and installing air pipes meet the current national standards of design and related products, and are certified by factory inspection.
Disclosure of Invention
The invention aims to provide an acid liquor exhaust pipeline installation and connection structure, which aims to solve the problem that the acid liquor is easy to accumulate and drip from a flange due to the fact that the acid liquor exhaust pipeline device in the prior art is easy to cause.
In order to achieve the purpose, the invention provides the following technical scheme: an acid liquor exhaust pipeline installation and connection structure comprises a first ventilation pipeline, a first connection plate is fixed on the outer side of the first ventilation pipeline, a second ventilation pipeline is arranged at the inner side of the first ventilation pipeline, a second connecting plate is fixed at the outer side of the second ventilation pipeline, a third connecting plate is fixed on the outer side of the second vent pipeline, a third vent pipeline is arranged on the outer side of the second vent pipeline, a fourth connecting plate is fixed on the outer side of the third ventilation pipeline, the first ventilation pipeline and the second ventilation pipeline are in clamping connection, the second ventilation pipeline is connected with the third ventilation pipeline in a clamping way, a fifth connecting plate is fixed on the outer side of the third ventilation pipeline, the fifth connecting plate is the same as the fourth connecting plate in size, a first sealing strip is arranged at the upper end of the third ventilation pipeline, and a second sealing strip is arranged on the outer side of the second ventilation pipeline.
Preferably, the width of the left end of the second ventilation pipeline is greater than that of the right end of the second ventilation pipeline, the bottom end of the inner side of the second ventilation pipeline is of an inclined structure, and the first sealing strip and the second sealing strip are made of rubber materials.
Preferably, a first threaded hole is formed in the outer side of the first connecting plate, a second threaded hole is formed in the outer side of the second connecting plate, the first threaded hole and the second threaded hole are the same in size, a first fixing screw is arranged on the outer side of the first threaded hole, the first threaded hole is in threaded connection with the first fixing screw, and the second threaded hole is in threaded connection with the first fixing screw.
Preferably, a third threaded hole is formed in the outer side of the third connecting plate, a fourth threaded hole is formed in the outer side of the fourth connecting plate, the third threaded hole and the fourth threaded hole are the same in size, a second fixing screw is arranged on the inner side of the third threaded hole, the third threaded hole is in threaded connection with the second fixing screw, and the fourth threaded hole is in threaded connection with the second fixing screw.
Preferably, the upper end of first air pipe is fixed with fixed joint, the upper end of third screw hole is provided with the rope, the upper end of rope is fixed with the baffle, the outside of rope is provided with the fixed plate, the fixed plate is sliding connection with the rope.
Preferably, the upper end of the fixing plate is provided with a first clamping groove, the baffle is connected with the first clamping groove in a clamping manner, the upper end of the fixing plate is provided with a fifth threaded hole, a third fixing screw is arranged on the inner side of the fifth threaded hole, and the fifth threaded hole is in threaded connection with the third fixing screw.
Preferably, the bottom end of the first ventilation pipeline is provided with a collecting port, the bottom end of the first ventilation pipeline is fixed with a sixth connecting plate, the bottom end of the sixth connecting plate is provided with a second clamping groove, the bottom end of the sixth connecting plate is provided with a collecting box, the upper end of the collecting box is fixed with a bottle opening, the bottle opening is connected with the collecting port in a clamping manner, the upper end of the collecting box is fixed with a fixed clamping block, and the fixed clamping block is connected with the second clamping groove in a clamping manner.
Preferably, a seventh connecting plate is fixed on the outer side of the collecting box, a sixth threaded hole is formed in the upper end of the seventh connecting plate, a fourth fixing screw is arranged on the inner side of the sixth threaded hole, and the sixth threaded hole is in threaded connection with the fourth fixing screw.
Compared with the prior art, the invention has the beneficial effects that: the acid liquor exhaust pipeline installation and connection structure comprises a first ventilation pipeline, a second ventilation pipeline, a first connecting plate, a second connecting plate, a first fixing screw, a third fixing screw, a fixing plate and a fixing plate, wherein the right end of the second ventilation pipeline is clamped into the left end of the first ventilation pipeline along the left end of the first ventilation pipeline, the first connecting plate is connected with the second connecting plate along the clamping of the second ventilation pipeline into the first threaded hole, the first ventilation pipeline and the second ventilation pipeline are stably connected, the third ventilation pipeline is clamped into the second ventilation pipeline along the inner side of the second ventilation pipeline, the third connecting plate is connected with the fourth connecting plate, the second fixing screw is rotated into the third threaded hole along the fourth threaded hole, the second ventilation pipeline and the third ventilation pipeline are fixed, the fixing plate is abutted against a ceiling, the third fixing screw is screwed into the fifth threaded hole to install the fixing plate, installation treatment on equipment is realized, and acid gas flows into the left from the, the flowing-down acidic liquid flows into the first ventilation pipeline from the third ventilation pipeline along the second ventilation pipeline and flows into the collection box from the collection port at the bottom end of the inner side of the first ventilation pipeline, so that the corrosion of the pipeline by the acid liquor and the collection treatment of the acid liquor are prevented.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic structural view of a third ventilation duct of the present invention;
FIG. 4 is a schematic view of a second vent conduit according to the present invention;
FIG. 5 is a schematic structural view of a first ventilation duct according to the present invention;
FIG. 6 is a schematic view of the structure of the collecting box of the present invention;
fig. 7 presents a schematic view of the rope structure according to the invention.
In the figure: 1. a first ventilation duct; 2. a first connecting plate; 3. a second vent conduit; 4. a second connecting plate; 5. a third connecting plate; 6. a third ventilation duct; 7. a fourth connecting plate; 8. a fifth connecting plate; 9. a first seal strip; 10. a second seal strip; 11. a first threaded hole; 12. a second threaded hole; 13. a first fixing screw; 14. a third threaded hole; 15. a fourth threaded hole; 16. a second fixing screw; 17. fixing the joint; 18. a rope; 19. a baffle plate; 20. a fixing plate; 21. a first card slot; 22. a fifth threaded hole; 23. a third fixing screw; 24. a collection port; 25. a sixth connecting plate; 26. a second card slot; 27. a collection box; 28. a bottle mouth; 29. fixing the fixture block; 30. a seventh connecting plate; 31. a sixth threaded hole; 32. and a fourth fixing screw.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides an acidizing fluid exhaust pipe erection joint structure, including first air pipe 1, the outside of first air pipe 1 is fixed with first connecting plate 2, the inboard of first air pipe 1 is provided with second ventilation pipeline 3, the outside of second ventilation pipeline 3 is fixed with second connecting plate 4, the outside of second ventilation pipeline 3 is fixed with third connecting plate 5, the outside of second ventilation pipeline 3 is provided with third ventilation pipeline 6, the outside of third ventilation pipeline 6 is fixed with fourth connecting plate 7, first air pipe 1 is connected for the block with second ventilation pipeline 3, second ventilation pipeline 3 is connected for the block with third ventilation pipeline 6, the outside of third ventilation pipeline 6 is fixed with fifth connecting plate 8, fifth connecting plate 8 is the same with fourth connecting plate 7 size, the upper end of third ventilation pipeline 6 is provided with first sealing strip 9, the outside of second ventilation pipeline 3 is provided with second sealing strip 10.
Furthermore, the width of the left end of the second vent pipe 3 is larger than that of the right end of the second vent pipe 3, the bottom end of the inner side of the second vent pipe 3 is of an inclined structure, and the first sealing strip 9 and the second sealing strip 10 are made of rubber materials, so that the backflow treatment of the acid liquor is realized.
Further, a first threaded hole 11 is formed in the outer side of the first connecting plate 2, a second threaded hole 12 is formed in the outer side of the second connecting plate 4, the first threaded hole 11 and the second threaded hole 12 are the same in size, a first fixing screw 13 is arranged on the outer side of the first threaded hole 11, the first threaded hole 11 is in threaded connection with the first fixing screw 13, the second threaded hole 12 is in threaded connection with the first fixing screw 13, and stable connection between the first ventilation pipeline 1 and the second ventilation pipeline 3 is achieved.
Furthermore, a third threaded hole 14 is formed in the outer side of the third connecting plate 5, a fourth threaded hole 15 is formed in the outer side of the fourth connecting plate 7, the third threaded hole 14 and the fourth threaded hole 15 are identical in size, a second fixing screw 16 is arranged on the inner side of the third threaded hole 14, the third threaded hole 14 and the second fixing screw 16 are in threaded connection, the fourth threaded hole 15 and the second fixing screw 16 are in threaded connection, and stable connection between the second ventilation pipeline 3 and the third ventilation pipeline 6 is achieved.
Furthermore, a fixed joint 17 is fixed at the upper end of the first ventilation duct 1, a rope 18 is arranged at the upper end of the third threaded hole 14, a baffle 19 is fixed at the upper end of the rope 18, a fixed plate 20 is arranged outside the rope 18, and the fixed plate 20 and the rope 18 are in sliding connection, so that the sliding processing of the fixed plate 20 is realized.
Furthermore, a first clamping groove 21 is formed in the upper end of the fixing plate 20, the baffle plate 19 is connected with the first clamping groove 21 in a clamping mode, a fifth threaded hole 22 is formed in the upper end of the fixing plate 20, a third fixing screw 23 is arranged on the inner side of the fifth threaded hole 22, the fifth threaded hole 22 is connected with the third fixing screw 23 in a threaded mode, and fixing processing of the fixing plate 20 is achieved.
Further, collection mouth 24 has been seted up to first ventilation pipe 1's bottom, first ventilation pipe 1's bottom mounting has sixth connecting plate 25, second draw-in groove 26 has been seted up to the bottom of sixth connecting plate 25, the bottom of sixth connecting plate 25 is provided with collects box 27, the upper end of collecting box 27 is fixed with bottleneck 28, bottleneck 28 is connected for the block with collection mouth 24, the upper end of collecting box 27 is fixed with fixed fixture block 29, fixed fixture block 29 is connected for the block with second draw-in groove 26, the collection of acidizing fluid is handled has been realized.
Furthermore, a seventh connecting plate 30 is fixed on the outer side of the collecting box 27, a sixth threaded hole 31 is formed in the upper end of the seventh connecting plate 30, a fourth fixing screw 32 is arranged on the inner side of the sixth threaded hole 31, and the sixth threaded hole 31 and the fourth fixing screw 32 are in threaded connection, so that the fixing treatment of the collecting box 27 is realized.
The working principle is as follows: the right end of the second ventilation pipeline 3 is clamped along the left end of the first ventilation pipeline 1, the first connecting plate 2 is connected with the second connecting plate 4 along with the clamping of the second ventilation pipeline 3 to the first ventilation pipeline 1, the first fixing screw 13 is rotated into the second threaded hole 12 along the first threaded hole 11, the first ventilation pipeline 1 and the second ventilation pipeline 3 are stably connected, the third ventilation pipeline 6 is clamped along the inner side of the second ventilation pipeline 3, the third connecting plate 5 is connected with the fourth connecting plate 7, the second fixing screw 16 is rotated into the third threaded hole 14 along the fourth threaded hole 15, the second ventilation pipeline 3 and the third ventilation pipeline 6 are fixed, the fixing plate 20 is abutted against the ceiling, the third fixing screw 23 is rotated and screwed into the fixing plate 20 along the fifth threaded hole 22, and the installation treatment of the equipment is realized, the acid gas flows into the left from the right end of the first ventilation pipeline 1, the flowing-down acid liquid flows into the first ventilation pipeline 1 from the third ventilation pipeline 6 along the second ventilation pipeline 3, and flows into the collection box 27 from the collection port 24 at the bottom end of the inner side of the first ventilation pipeline 1, so that the corrosion of acid liquor to the pipelines and the collection treatment of the acid liquor are prevented.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an acidizing fluid exhaust pipe installs connection structure, includes first air pipe (1), its characterized in that: the outside of first air pipe (1) is fixed with first connecting plate (2), the inboard of first air pipe (1) is provided with second air pipe (3), the outside of second air pipe (3) is fixed with second connecting plate (4), the outside of second air pipe (3) is fixed with third connecting plate (5), the outside of second air pipe (3) is provided with third air pipe (6), the outside of third air pipe (6) is fixed with fourth connecting plate (7), first air pipe (1) is connected for the block with second air pipe (3), second air pipe (3) is connected for the block with third air pipe (6), the outside of third air pipe (6) is fixed with fifth connecting plate (8), fifth connecting plate (8) is the same with fourth connecting plate (7) size, the upper end of the third ventilation pipeline (6) is provided with a first sealing strip (9), and the outer side of the second ventilation pipeline (3) is provided with a second sealing strip (10).
2. The acid liquor exhaust pipe installation and connection structure of claim 1, wherein: the left end width of second vent pipe way (3) is greater than the right-hand member width, the inboard bottom of second vent pipe way (3) is the slope structure, first sealing strip (9) and second sealing strip (10) are the rubber material.
3. The acid liquor exhaust pipe installation and connection structure of claim 1, wherein: first screw hole (11) have been seted up in the outside of first connecting plate (2), second screw hole (12) have been seted up in the outside of second connecting plate (4), first screw hole (11) are the same with second screw hole (12) size, the outside of first screw hole (11) is provided with first fixed screw (13), first screw hole (11) are threaded connection with first fixed screw (13), second screw hole (12) are threaded connection with first fixed screw (13).
4. The acid liquor exhaust pipe installation and connection structure of claim 1, wherein: third screw hole (14) have been seted up in the outside of third connecting plate (5), fourth screw hole (15) have been seted up in the outside of fourth connecting plate (7), third screw hole (14) are the same with fourth screw hole (15) size, the inboard of third screw hole (14) is provided with second fixed screw (16), third screw hole (14) are threaded connection with second fixed screw (16), fourth screw hole (15) are threaded connection with second fixed screw (16).
5. The acid liquor exhaust pipe installation and connection structure of claim 1, wherein: fixed joint (17) are fixed with to the upper end of first air pipe (1), the upper end of third screw hole (14) is provided with rope (18), the upper end of rope (18) is fixed with baffle (19), the outside of rope (18) is provided with fixed plate (20), fixed plate (20) and rope (18) are sliding connection.
6. The acid liquor exhaust pipe installation and connection structure of claim 5, wherein: first draw-in groove (21) have been seted up to the upper end of fixed plate (20), baffle (19) are connected for the block with first draw-in groove (21), fifth screw hole (22) have been seted up to the upper end of fixed plate (20), the inboard of fifth screw hole (22) is provided with third fixed screw (23), fifth screw hole (22) are threaded connection with third fixed screw (23).
7. The acid liquor exhaust pipe installation and connection structure of claim 1, wherein: collection mouth (24) have been seted up to the bottom of first air pipe (1), the bottom mounting of first air pipe (1) has sixth connecting plate (25), second draw-in groove (26) have been seted up to the bottom of sixth connecting plate (25), the bottom of sixth connecting plate (25) is provided with collects box (27), the upper end of collecting box (27) is fixed with bottleneck (28), bottleneck (28) are connected for the block with collection mouth (24), the upper end of collecting box (27) is fixed with fixed fixture block (29), fixed fixture block (29) are connected for the block with second draw-in groove (26).
8. The acid liquor exhaust pipe installation and connection structure of claim 7, wherein: a seventh connecting plate (30) is fixed to the outer side of the collecting box (27), a sixth threaded hole (31) is formed in the upper end of the seventh connecting plate (30), a fourth fixing screw (32) is arranged on the inner side of the sixth threaded hole (31), and the sixth threaded hole (31) is in threaded connection with the fourth fixing screw (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550320.6A CN112524363A (en) | 2020-12-24 | 2020-12-24 | Acid liquor exhaust pipe installs connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550320.6A CN112524363A (en) | 2020-12-24 | 2020-12-24 | Acid liquor exhaust pipe installs connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112524363A true CN112524363A (en) | 2021-03-19 |
Family
ID=74976186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011550320.6A Pending CN112524363A (en) | 2020-12-24 | 2020-12-24 | Acid liquor exhaust pipe installs connection structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN112524363A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669527A (en) * | 2021-08-20 | 2021-11-19 | 中国海洋石油集团有限公司 | Pipeline dislocation connecting device and method |
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| US20050224125A1 (en) * | 2002-04-01 | 2005-10-13 | Isamu Kajino | Duct unit for air-conditioner |
| US20140166144A1 (en) * | 2012-12-17 | 2014-06-19 | United Technologies Corporation | Composite Ducts and Methods |
| CN203703435U (en) * | 2013-12-10 | 2014-07-09 | 天津一能不锈钢制品有限公司 | Plug-in type ventilation pipeline |
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| JP2017120111A (en) * | 2015-12-28 | 2017-07-06 | 大阪コートロープ株式会社 | Rope body for suspension and fixation structure for duct |
| CN209385890U (en) * | 2018-12-13 | 2019-09-13 | 江苏荣泉科技发展有限公司 | A kind of glass fibre reinforced plastic blast pipe with filtration |
| CN210921715U (en) * | 2019-08-22 | 2020-07-03 | 广西鼎胜实验室设备有限责任公司 | Device for collecting condensed acid liquor of ventilation system |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050224125A1 (en) * | 2002-04-01 | 2005-10-13 | Isamu Kajino | Duct unit for air-conditioner |
| CN1619204A (en) * | 2004-12-07 | 2005-05-25 | 葛文宇 | Connection method of bayonet sealed glass fibre reinforced plastic pipe line |
| US20140166144A1 (en) * | 2012-12-17 | 2014-06-19 | United Technologies Corporation | Composite Ducts and Methods |
| CN203703435U (en) * | 2013-12-10 | 2014-07-09 | 天津一能不锈钢制品有限公司 | Plug-in type ventilation pipeline |
| CN204493964U (en) * | 2015-01-12 | 2015-07-22 | 王岚 | A kind of bend pipe structure-improved of construction engineering ventilation duct |
| CN104696635A (en) * | 2015-03-23 | 2015-06-10 | 浙江华立涂装设备有限公司 | Exhaust pipe structure |
| JP2017120111A (en) * | 2015-12-28 | 2017-07-06 | 大阪コートロープ株式会社 | Rope body for suspension and fixation structure for duct |
| CN209385890U (en) * | 2018-12-13 | 2019-09-13 | 江苏荣泉科技发展有限公司 | A kind of glass fibre reinforced plastic blast pipe with filtration |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113669527A (en) * | 2021-08-20 | 2021-11-19 | 中国海洋石油集团有限公司 | Pipeline dislocation connecting device and method |
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Application publication date: 20210319 |