CN114165652B - Fixed bolster for double-wall pipe inner tube - Google Patents
Fixed bolster for double-wall pipe inner tube Download PDFInfo
- Publication number
- CN114165652B CN114165652B CN202111303933.4A CN202111303933A CN114165652B CN 114165652 B CN114165652 B CN 114165652B CN 202111303933 A CN202111303933 A CN 202111303933A CN 114165652 B CN114165652 B CN 114165652B
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- tube
- outer tube
- inner tube
- steel outer
- 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.)
- Active
Links
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 123
- 239000010935 stainless steel Substances 0.000 claims abstract description 123
- 238000013016 damping Methods 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims abstract description 8
- 230000035939 shock Effects 0.000 claims abstract description 8
- 239000004809 Teflon Substances 0.000 abstract description 5
- 229920006362 Teflon® Polymers 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 239000000446 fuel Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material 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
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- F16L9/00—Rigid pipes
- F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
-
- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/035—Noise absorbers in the form of specially adapted hangers or supports
-
- 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
- F16L7/00—Supporting of pipes or cables inside other pipes or sleeves, e.g. for enabling pipes or cables to be inserted or withdrawn from under roads or railways without interruption of traffic
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a fixing support for a double-wall pipe inner pipe, which comprises a stainless steel inner pipe, a stainless steel outer pipe, a damping part and a fixing part, wherein the stainless steel inner pipe is arranged on the inner side of the stainless steel outer pipe, the damping part is arranged between the stainless steel inner pipe and the stainless steel outer pipe and used for improving the damping effect between the stainless steel inner pipe and the stainless steel outer pipe, and the stainless steel outer pipe and the stainless steel inner pipe are detachably and fixedly connected through the fixing part. According to the invention, the auxiliary fixing block with the clamping groove is arranged to be clamped with the fixing gasket, the Teflon gasket with good elasticity and good insulation is arranged to support the inner wall of the stainless steel outer tube, so that the shock absorption effect between the stainless steel inner tube and the stainless steel outer tube is improved, the stainless steel outer tube and the stainless steel inner tube are detachably and fixedly connected through the fixing part, when the stainless steel inner tube or the stainless steel outer tube is damaged, only one of the stainless steel inner tube or the stainless steel outer tube is required to be replaced, and the other stainless steel inner tube or the stainless steel outer tube is not damaged during the disassembly, so that the replacement cost is low.
Description
Technical Field
The invention relates to the field of double-wall pipe equipment, in particular to a fixing support for a double-wall pipe inner pipe.
Background
The double-wall pipe of the fuel supply system for the LNG ship adopts two sets of independent air supply systems, LNG fuel is introduced into the inner pipe of the double-wall pipe under the condition of constant temperature and pressure, air is introduced into the outer pipe of the double-wall pipe, and detection points are arranged on the outer pipe wall and used for carrying out safety detection and protection on LNG fuel leakage which possibly exists.
1. The double-wall pipe in the prior art comprises an inner pipe and an outer pipe, the inner pipe and the outer pipe are combined by adopting a welding process, the process is complex, more equipment is required, the shock absorption performance between the inner pipe and the outer pipe is poor, the shock is large when the fuel supply system works, and the fuel supply system is easy to break for a long time to be effective.
2. And the inner tube and the outer tube are not easy to detach, and when one of the inner tube and the outer tube leaks, the whole can not be used continuously.
The utility model provides a novel fixed bolster lies in overcoming the above-mentioned not enough that exists among the prior art, and then provides a structural design is reasonable, easy dismounting, marine gas double-wall pipe fixed bolster that shock-absorbing quality is better.
Disclosure of Invention
The invention aims to provide a fixing support for a double-wall pipe inner pipe, which is used for solving the problems of poor shock absorption performance and difficult disassembly of the inner pipe and the outer pipe.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a fixing bracket for a double-wall pipe inner pipe comprises a stainless steel inner pipe, a stainless steel outer pipe, a damping part and a fixing part;
the stainless steel outer tube is arranged at the inner side of the stainless steel outer tube, and a damping part is arranged between the stainless steel inner tube and the stainless steel outer tube and used for improving the damping effect between the stainless steel inner tube and the stainless steel outer tube;
the stainless steel outer tube and the stainless steel inner tube are detachably and fixedly connected through the fixing part and used for fixing the stainless steel outer tube and the stainless steel inner tube.
Further, the damping part comprises auxiliary fixing blocks and gaskets, wherein the auxiliary fixing blocks are distributed on the outer wall of the stainless steel inner tube in surrounding type equidistantly, and one ends of the auxiliary fixing blocks are welded and fixed with the outer wall of the stainless steel inner tube;
the inner side of the auxiliary fixing block is provided with a convex clamping groove, and the gasket is of an I-shaped structure.
Further, the gasket is fixedly clamped with the clamping groove, and one side, away from the auxiliary fixing block, of the gasket is contacted with the inner wall of the stainless steel outer tube.
Further, the fixed part comprises a locating pin and a support plate, an external thread is arranged at the assembly end of the locating pin, a plurality of support plates are welded and fixed on the outer wall of the stainless steel outer tube in a surrounding mode at equal intervals, the support plate is of an L-shaped structure, and perforations are formed in one end, far away from the outer wall of the stainless steel outer tube, of the support plate.
Further, a plurality of first threaded holes are formed in the outer wall of the stainless steel outer tube in a surrounding mode at equal intervals, a plurality of second threaded holes are formed in the stainless steel inner tube in the surrounding mode at equal intervals, and the locating pin penetrates through the through holes and is in threaded connection with the first threaded holes and the second threaded holes in sequence, so that the stainless steel outer tube and the stainless steel inner tube are fixed.
Further, the auxiliary fixing block and the gasket are of arc structures, and the auxiliary fixing block is matched with the gasket.
Further, the inner diameter of the stainless steel outer tube is larger than the outer diameter of the stainless steel inner tube.
Further, the outer diameter of the locating pin is smaller than the inner diameter of the through hole.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the auxiliary fixing block with the clamping groove is arranged to be clamped with the fixing gasket, the Teflon gasket with good elasticity and good insulation is arranged to support the inner wall of the stainless steel outer tube, the shock absorption effect between the stainless steel inner tube and the stainless steel outer tube is improved, the stainless steel outer tube and the stainless steel inner tube are detachably and fixedly connected through the fixing part, and the stainless steel outer tube and the stainless steel inner tube are fixed, when the stainless steel inner tube or the stainless steel outer tube is damaged, only one of the stainless steel inner tube or the stainless steel outer tube is required to be replaced, and the other stainless steel inner tube or the stainless steel outer tube is not damaged when being disassembled, so that the replacement cost is low, the bracket in the form is suitable for all-tube diameters, and the bracket is simple to process and convenient to use.
Drawings
FIG. 1 is a schematic view of the overall front cross-sectional structure of the present invention;
FIG. 2 is a schematic diagram of the overall right-view structure of the present invention;
FIG. 3 is a schematic view of a partial enlarged structure at A in FIG. 1;
FIG. 4 is a schematic view of a partial enlarged structure at B in FIG. 1;
FIG. 5 is a schematic view of a partial enlarged structure at C in FIG. 1;
fig. 6 is a schematic view of a shock absorbing portion structure.
In the figure: 10. a stainless steel inner tube; 11. a stainless steel outer tube; 12. a first threaded hole; 13. a second threaded hole; 20. an auxiliary fixing block; 21. a gasket; 22. a clamping groove; 30. a positioning pin; 31. a support plate; 32. And (5) perforating.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides the following technical solutions:
a fixing bracket for a double-wall pipe inner pipe, which comprises a stainless steel inner pipe 10, a stainless steel outer pipe 11, a damping part and a fixing part;
wherein, the stainless steel inner tube 10 is arranged on the inner side of the stainless steel outer tube 11, and a damping part is arranged between the stainless steel inner tube 10 and the stainless steel outer tube 11 for improving the damping effect between the stainless steel inner tube 10 and the stainless steel outer tube 11;
wherein, stainless steel outer tube 11 and stainless steel inner tube 10 are through removable fixed connection of fixed part for carrying out fixed connection to stainless steel outer tube 11 and stainless steel inner tube 10.
The damping part comprises an auxiliary fixing block 20 and a liner 21, wherein the auxiliary fixing blocks 20 are distributed on the outer wall of the stainless steel inner tube 10 in a surrounding mode at equal intervals, and one end of each auxiliary fixing block 20 is welded and fixed with the outer wall of the stainless steel inner tube 10;
wherein the auxiliary fixing block 20 is made of stainless steel material, and the gasket 21 is a teflon gasket with good insulation.
The inner side of the auxiliary fixing block 20 is provided with a convex clamping groove 22, and the gasket 21 is of an I-shaped structure.
Wherein, the liner 21 is fixed with the clamping groove 22 in a clamping way, and one side of the liner 21 away from the auxiliary fixing block 20 is contacted with the inner wall of the stainless steel outer tube 11.
When in use, the auxiliary fixing block 20 with the clamping groove 22 is arranged to be clamped with the fixing gasket 21, and the Teflon gasket with good elasticity and good insulation is arranged to support the inner wall of the stainless steel outer tube 11, so that the damping effect between the stainless steel inner tube 10 and the stainless steel outer tube 11 is improved
Wherein, fixed part includes locating pin 30 and extension board 31, and the assembly end of locating pin 30 is provided with the external screw thread, and encircling equidistance welded fastening has a plurality of extension boards 31 on the stainless steel outer tube 11 outer wall, and extension board 31 is L shape structure, and perforation 32 has all been seted up to the one end that stainless steel outer tube 11 outer wall was kept away from to extension board 31.
Wherein, the outer wall of the stainless steel outer tube 11 is provided with a plurality of first threaded holes 12 in a surrounding type equidistant way, the stainless steel inner tube 10 is provided with a plurality of second threaded holes 13 in a surrounding type equidistant way, and the locating pin 30 passes through the perforation 32 and is in threaded connection with the first threaded holes 12 and the second threaded holes 13 in sequence, so that the stainless steel outer tube 11 and the stainless steel inner tube 10 are fixed.
Wherein, auxiliary fixed block 20 and liner 21 are arc structure, auxiliary fixed block 20 and liner 21 looks adaptation.
Wherein the inner diameter of the stainless steel outer tube 11 is larger than the outer diameter of the stainless steel inner tube 10.
The outer diameter of the positioning pin 30 is smaller than the inner diameter of the through hole 32, the positioning pin 30 is of a T-shaped structure, and the top end of the positioning pin 30 of the T-shaped structure can be convenient for a worker to rotate.
Working principle: when the stainless steel inner tube 10 is used, firstly, one end of the stainless steel outer tube 11 is penetrated, then, the second threaded hole 13 is vertically aligned with the first threaded hole 12, the locating pin 30 penetrates through the through hole 32 and is sequentially connected with the first threaded hole 12 and the second threaded hole 13 in a threaded mode, so that the stainless steel outer tube 11 and the stainless steel inner tube 10 are fixed, the auxiliary fixing block 20 with the clamping groove 22 is arranged to be clamped with the fixing gasket 21, the inner wall of the stainless steel outer tube 11 is supported by the Teflon gasket 21 with good elasticity, the good insulation is arranged, the shock absorption effect between the stainless steel inner tube 10 and the stainless steel outer tube 11 is improved, the stainless steel outer tube 11 and the stainless steel inner tube 10 are fixedly connected through the fixing part in a detachable mode, and the locating pin 30 penetrates through the through hole 32 and is sequentially connected with the first threaded hole 12 and the second threaded hole 13 in a threaded mode, so that the stainless steel outer tube 11 and the stainless steel inner tube 10 are fixed, and when the stainless steel inner tube 10 or the stainless steel outer tube 11 is damaged, only one of the stainless steel inner tube 11 needs to be replaced.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a fixed bolster for double-walled intraductal pipe, includes stainless steel inner tube (10), stainless steel outer tube (11), shock attenuation portion and fixed part, its characterized in that:
the stainless steel outer tube (11) is internally provided with a stainless steel inner tube (10), and a damping part is arranged between the stainless steel inner tube (10) and the stainless steel outer tube (11) and used for improving the damping effect between the stainless steel inner tube (10) and the stainless steel outer tube (11);
the stainless steel outer tube (11) and the stainless steel inner tube (10) are detachably and fixedly connected through the fixing part and are used for fixing the stainless steel outer tube (11) and the stainless steel inner tube (10);
the damping part comprises auxiliary fixing blocks (20) and a gasket (21), wherein the auxiliary fixing blocks (20) are distributed on the outer wall of the stainless steel inner tube (10) in a surrounding mode at equal intervals, and one ends of the auxiliary fixing blocks (20) are welded and fixed with the outer wall of the stainless steel inner tube (10);
a convex clamping groove (22) is formed in the inner side of the auxiliary fixing block (20), and the liner (21) is of an I-shaped structure;
the gasket (21) is clamped and fixed with the clamping groove (22), and one side of the gasket (21) away from the auxiliary fixing block (20) is contacted with the inner wall of the stainless steel outer tube (11);
the fixed part comprises a locating pin (30) and a support plate (31), an external thread is arranged at the assembly end of the locating pin (30), a plurality of support plates (31) are welded and fixed on the outer wall of the stainless steel outer tube (11) in a surrounding mode at equal intervals, the support plates (31) are of L-shaped structures, and perforations (32) are formed in one ends, far away from the outer wall of the stainless steel outer tube (11), of the support plates (31).
2. A double-walled tube-in-tube fixing bracket as defined in claim 1, wherein:
the stainless steel outer tube (11) is provided with a plurality of first screw holes (12) in surrounding mode equidistance departure, the stainless steel inner tube (10) is provided with a plurality of second screw holes (13) in surrounding mode equidistance departure, the locating pin (30) penetrates through the through hole (32) and is connected with the first screw holes (12) and the second screw holes (13) in screw in sequence, and therefore the stainless steel outer tube (11) and the stainless steel inner tube (10) are fixed.
3. A double-walled tube-in-tube fixing bracket as defined in claim 1, wherein:
the auxiliary fixing block (20) and the gasket (21) are of arc-shaped structures, and the auxiliary fixing block (20) is matched with the gasket (21).
4. A double-walled tube-in-tube securing bracket as defined in claim 2, wherein:
the inner diameter of the stainless steel outer tube (11) is larger than the outer diameter of the stainless steel inner tube (10).
5. A double-walled tube-in-tube fixing bracket as defined in claim 1, wherein: the outer diameter of the locating pin (30) is smaller than the inner diameter of the through hole (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111303933.4A CN114165652B (en) | 2021-11-05 | 2021-11-05 | Fixed bolster for double-wall pipe inner tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111303933.4A CN114165652B (en) | 2021-11-05 | 2021-11-05 | Fixed bolster for double-wall pipe inner tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114165652A CN114165652A (en) | 2022-03-11 |
| CN114165652B true CN114165652B (en) | 2024-02-02 |
Family
ID=80478051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111303933.4A Active CN114165652B (en) | 2021-11-05 | 2021-11-05 | Fixed bolster for double-wall pipe inner tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114165652B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114471439A (en) * | 2022-02-28 | 2022-05-13 | 茂名重力石化装备股份公司 | Series pipe reactor with static fit jacket |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546232A (en) * | 2016-02-01 | 2016-05-04 | 中航鼎衡造船有限公司 | Double-wall pipe for dual-fuel propelling ship |
| CN206368808U (en) * | 2016-12-21 | 2017-08-01 | 张军 | A kind of single-screw (single screw) pump for being applicable high temperature |
| CN208024961U (en) * | 2018-03-28 | 2018-10-30 | 浙江鹏业不锈钢有限公司 | A kind of novel stainless steel seamless steel tube |
| CN208540313U (en) * | 2018-07-25 | 2019-02-22 | 武汉所为科技有限公司 | A kind of low-power consumption internet of things data acquisition terminal with damping and radiator structure |
| CN210860138U (en) * | 2019-09-16 | 2020-06-26 | 烟台中集来福士海洋工程有限公司 | Double-wall pipe structure |
| CN112797250A (en) * | 2021-01-19 | 2021-05-14 | 招商局重工(深圳)有限公司 | Double-wall pipe |
| CN113090824A (en) * | 2021-05-11 | 2021-07-09 | 晟瑞船舶科技工程(上海)有限公司 | Double-wall pipe is carried to marine gas |
| CN214093392U (en) * | 2020-12-07 | 2021-08-31 | 安徽天使虹丽科技发展有限公司 | CFRTP-PP high temperature resistant composite pipe |
-
2021
- 2021-11-05 CN CN202111303933.4A patent/CN114165652B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546232A (en) * | 2016-02-01 | 2016-05-04 | 中航鼎衡造船有限公司 | Double-wall pipe for dual-fuel propelling ship |
| CN206368808U (en) * | 2016-12-21 | 2017-08-01 | 张军 | A kind of single-screw (single screw) pump for being applicable high temperature |
| CN208024961U (en) * | 2018-03-28 | 2018-10-30 | 浙江鹏业不锈钢有限公司 | A kind of novel stainless steel seamless steel tube |
| CN208540313U (en) * | 2018-07-25 | 2019-02-22 | 武汉所为科技有限公司 | A kind of low-power consumption internet of things data acquisition terminal with damping and radiator structure |
| CN210860138U (en) * | 2019-09-16 | 2020-06-26 | 烟台中集来福士海洋工程有限公司 | Double-wall pipe structure |
| CN214093392U (en) * | 2020-12-07 | 2021-08-31 | 安徽天使虹丽科技发展有限公司 | CFRTP-PP high temperature resistant composite pipe |
| CN112797250A (en) * | 2021-01-19 | 2021-05-14 | 招商局重工(深圳)有限公司 | Double-wall pipe |
| CN113090824A (en) * | 2021-05-11 | 2021-07-09 | 晟瑞船舶科技工程(上海)有限公司 | Double-wall pipe is carried to marine gas |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114165652A (en) | 2022-03-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114165652B (en) | Fixed bolster for double-wall pipe inner tube | |
| CN217384388U (en) | Glass level gauge protective cradle | |
| CN209214431U (en) | Convenient for the Pipe bundle structure of pressure testing | |
| CN207961741U (en) | One seed nucleus measurement pipe channel fixing device | |
| CN220039711U (en) | Direct-mounted instrument fixing structure | |
| CN218845422U (en) | Split type flange for connecting plastic pipe flange head | |
| CN215928722U (en) | Seamless steel pipe for high-pressure chemical fertilizer equipment | |
| CN211904902U (en) | Bellows pressure test frock | |
| CN216952157U (en) | Three-way structure with alarm device for high-pressure pipeline | |
| US2995028A (en) | Apparatus for testing heat exchangers | |
| CN205118512U (en) | Flange convenient to installation and dismantlement | |
| CN111515888A (en) | Concatenation formula respirator assembly and disassembly tools | |
| CN215635396U (en) | Construction protection device for pipeline installation | |
| CN110966483A (en) | Pipeline inner wall inspection device | |
| CN215060274U (en) | Corrosion-resistant pipeline connecting flange | |
| CN214064198U (en) | Stainless steel lining tetrafluoro compensator | |
| CN218936054U (en) | Movable link and detection device for liquid hydrogen storage tank | |
| CN215673935U (en) | Novel single-shaft damping pipe clamp | |
| CN220452993U (en) | Corrosion-resistant steel pipe | |
| CN212719821U (en) | Propane gas flow adjusting device | |
| CN217484967U (en) | Combustible gas monitoring facilities | |
| CN210892269U (en) | Condenser assembly for new energy automobile air conditioner | |
| CN216899443U (en) | Pressure-bearing special equipment connecting pipe sealing measuring device | |
| CN213575752U (en) | Fire retardant buffering device for formaldehyde production | |
| CN220320521U (en) | High-temperature-resistant single-screw PE (polyethylene) pipe |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |