CN112082031A - Large-scale assembled straight tube pressure balance type expansion joint - Google Patents
Large-scale assembled straight tube pressure balance type expansion joint Download PDFInfo
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- CN112082031A CN112082031A CN202011004330.XA CN202011004330A CN112082031A CN 112082031 A CN112082031 A CN 112082031A CN 202011004330 A CN202011004330 A CN 202011004330A CN 112082031 A CN112082031 A CN 112082031A
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- 210000002445 nipple Anatomy 0.000 claims abstract description 30
- 238000003466 welding Methods 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
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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
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/03—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube comprising two or more bellows
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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
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/025—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with several corrugations
Abstract
The invention discloses a large-scale assembled straight pipe pressure balance type expansion joint, which comprises: the guide cylinder I is detachably connected with an annular inlet short section; the guide cylinder II is detachably connected with an annular outlet nipple; a gap is reserved between the guide cylinder I and the guide cylinder I; the two ends of the inlet working corrugated pipe are respectively fixedly connected with the annular inlet short section and the balance ring I; the two ends of the balance corrugated pipe are respectively fixedly connected with the balance ring I and the balance ring II; the two ends of the outlet working corrugated pipe are respectively fixedly connected with the balance ring II and the annular outlet short section; the inlet connecting rod and the outlet connecting rod are arranged in the expansion joint, and two ends of the inlet connecting rod are detachably connected with the annular inlet short section and the balance ring II respectively; two ends of the outlet connecting rod are detachably connected with the annular outlet nipple and the balance ring I respectively. The expansion joint adopts an assembly type structure, is more compact in layout, realizes independent replacement of any corrugated pipe, and greatly saves maintenance period and cost.
Description
Technical Field
The invention belongs to the technical field of wind tunnel pipelines, and particularly relates to a large-scale assembled straight pipe pressure balance type expansion joint.
Background
The expansion joint is a common structure on a thermal pipeline system and a pressure vessel shell, is used for compensating thermal expansion stress caused by temperature difference and displacement compensation, has the functions of vibration reduction, noise reduction and sealing, and is widely applied to equipment such as thermal pipeline process piping, machines, pumps, pressure vessels and the like in various industrial departments of metallurgy, oil refining, petrochemical industry, electric power, heat supply networks, ships, buildings, cement, aerospace, machinery and the like at present. The expansion joint mainly comprises a corrugated pipe and other bearing structural members, absorbs the transverse, axial and angular thermal deformation of a pipe system or a pressure container by utilizing the effective telescopic deformation of the corrugated pipe, and has certain bearing capacity.
The straight pipe pressure balance type expansion joint mainly comprises an outer pull rod and an inner pull plate. For a large-caliber pipeline system, after the internal size of the expansion joint is increased to cause the damage of the corrugated pipe and other faults, the time cost and the economic cost of equipment maintenance are greatly increased. The inner pull plate type expansion joint has a compact structure and small occupied space of equipment, but the expansion joint can only be integrally replaced after the corrugated pipe is damaged, so that the maintenance period is long and the replacement cost is high; the corrugated pipe of the external pull rod type expansion joint can be independently replaced, but the expansion joint integrally occupies a large space, and provides higher requirements for the strength and rigidity design of structures such as a pull rod, an end plate and the like. The invention combines the advantages of two straight pipe pressure balance type expansion joints, not only ensures the compact structure, but also can independently replace any corrugated pipe, and has short equipment maintenance period and low cost.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a large fabricated straight pipe pressure balanced type expansion joint, comprising:
the guide cylinder I is detachably connected with an annular inlet short section;
the guide cylinder II is detachably connected with an annular outlet nipple; a gap is reserved between the guide cylinder I and the guide cylinder II, and the central axes of the guide cylinder I and the guide cylinder II are coincided;
the inlet working corrugated pipe is sleeved outside the guide cylinder I, one end of the inlet working corrugated pipe is fixedly connected with the annular inlet short section, and the other end of the inlet working corrugated pipe is fixedly connected with the balance ring I; the balance corrugated pipe is sleeved outside the guide cylinder I and the guide cylinder II, one end of the balance corrugated pipe is fixedly connected with the balance ring I, and the other end of the balance corrugated pipe is fixedly connected with the balance ring II; the outlet working corrugated pipe is sleeved outside the guide cylinder II, one end of the outlet working corrugated pipe is fixedly connected with the balance ring II, and the other end of the outlet working corrugated pipe is fixedly connected with the annular outlet short section;
the inlet connecting rod and the outlet connecting rod are arranged in the expansion joint, and two ends of the inlet connecting rod are detachably connected with the annular inlet short section and the balance ring II respectively; and two ends of the outlet connecting rod are detachably connected with the annular outlet nipple and the balance ring I respectively.
Preferably, wherein draft tube I and draft tube II divide the setting in the circumference into blocks, and draft tube I and draft tube II include the guide plate of a plurality of circumference arrangements promptly.
Preferably, the detachable connection mode between the inlet connecting rod and the annular inlet short section and between the inlet connecting rod and the balance ring II is bolt or screw connection, and an adjusting base plate is arranged between the inlet connecting rod and the balance ring II; the detachable connection mode between the outlet connecting rod and the annular outlet short section and between the outlet connecting rod and the balance ring I is bolt or screw connection, and an adjusting base plate is arranged between the outlet connecting rod and the balance ring I.
Preferably, the detachable connection mode between the inlet connecting rod and the annular inlet short section and between the inlet connecting rod and the balance ring II is bolt or screw connection, and an adjusting shim plate is arranged between the inlet connecting rod and the annular inlet short section; the detachable connection mode between the outlet connecting rod and the annular outlet short section and between the outlet connecting rod and the balance ring I is bolt or screw connection, and an adjusting base plate is arranged between the outlet connecting rod and the annular outlet short section.
Preferably, the inlet working bellows and the annular inlet nipple, the inlet working bellows and the balance ring I, the balance bellows and the balance ring II, the outlet working bellows and the balance ring II, and the outlet working bellows and the annular outlet nipple are fixedly connected by welding.
Preferably, the detachable connection mode between the guide cylinder I and the annular inlet short section and between the guide cylinder II and the annular outlet short section is screw connection.
Preferably, the inlet and outlet connecting rods are in a frame-type plate welding structure.
Preferably, flange backing plates used as mounting surfaces of the inlet connecting rod and the outlet connecting rod are welded on the circular ring surfaces of the annular inlet short joint, the balance ring I, the balance ring II and the annular outlet short joint.
Preferably, a section of transition cylinder is reserved on the annular inlet nipple, the balance ring I, the balance ring II and the annular outlet nipple.
The invention at least comprises the following beneficial effects: the assembled straight pipe pressure balance type expansion joint provided by the invention adopts an assembled structure, the corrugated pipe can be independently replaced after the inlet connecting rod and the outlet connecting rod are removed, the replacement period is short, and the maintenance cost is low; the inlet connecting rod and the outlet connecting rod adopt frame type plate welding structures, so that the overall rigidity and structural strength of the expansion joint are enhanced; the inlet connecting rod and the outlet connecting rod are arranged in the expansion joint in a staggered mode, the structural layout is compact, and the installation space is saved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Description of the drawings:
FIG. 1 is a schematic sectional view of a large fabricated straight pipe pressure-balanced expansion joint according to the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
fig. 3 is an enlarged view at B in fig. 1.
The specific implementation mode is as follows:
the present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
It is to be understood that in the description of the present invention, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are used only for convenience in describing the present invention and for simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, unless otherwise specifically stated or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, or a communication between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention specifically.
Further, in the present invention, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacted with the first and second features, or indirectly contacted with the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1-3: the invention relates to a large-scale assembled straight pipe pressure balance type expansion joint, which comprises:
the guide cylinder I15 is detachably connected with an annular inlet nipple 1;
the guide cylinder II 12 is detachably connected with an annular outlet nipple 7; a gap is reserved between the guide cylinder I15 and the guide cylinder II 12, and the central axes of the guide cylinder I15 and the guide cylinder II 12 are coincided;
the inlet working corrugated pipe 2 is sleeved outside the guide cylinder I15, one end of the inlet working corrugated pipe 2 is fixedly connected with the annular inlet short section 1, and the other end of the inlet working corrugated pipe is fixedly connected with a balance ring I3; the balance corrugated pipe 4 is sleeved outside the guide cylinder I15 and the guide cylinder II 12, one end of the balance corrugated pipe 4 is fixedly connected with the balance ring I3, and the other end of the balance corrugated pipe 4 is fixedly connected with the balance ring II 5; an outlet working corrugated pipe 6 is sleeved outside the guide cylinder II 12, one end of the outlet working corrugated pipe 6 is fixedly connected with the balance ring II 5, and the other end of the outlet working corrugated pipe is fixedly connected with the annular outlet short section 7;
the inlet connecting rod 11 and the outlet connecting rod 13 are arranged inside the expansion joint, and two ends of the inlet connecting rod 11 are detachably connected with the annular inlet short section 1 and the balance ring II 5 respectively; and two ends of the outlet connecting rod 13 are detachably connected with the annular outlet nipple 7 and the balance ring I5 respectively.
The working principle is as follows: when any one of the inlet working corrugated pipe 2, the balance corrugated pipe 4 and the outlet working corrugated pipe 6 is damaged, the inlet connecting rod 11, the outlet connecting rod 13, the guide cylinder I15 and the guide cylinder II 12 are firstly removed during maintenance, the damaged corrugated pipe is cut off, a new corrugated pipe is installed, and two ends of the new corrugated pipe are welded and fixed, for example, if the inlet working corrugated pipe 2 is replaced, two ends of the replaced inlet working corrugated pipe are respectively welded and fixed with the annular inlet short section 1 and the balance ring I3, and finally the inlet connecting rod 11, the outlet connecting rod 13, the guide cylinder I15 and the guide cylinder II 12 are installed again, so that the purpose of maintenance can be achieved. A gap is reserved between the guide cylinder I15 and the guide cylinder II 12, so that when the inlet working corrugated pipe 2, the balance corrugated pipe 4 and the outlet working corrugated pipe 6 stretch, the guide cylinder I15 and the guide cylinder II 12 can move relatively.
In above-mentioned technical scheme, draft tube I and draft tube II are the piecemeal setting in circumference, and draft tube I and draft tube II include the guide plate that a plurality of circumference were arranged promptly, and the air current can be followed and passed through between the guide plate.
In the above technical solution, as shown in fig. 1 and 3, the inlet connecting rod 11 is detachably connected with the annular inlet nipple 1, the inlet connecting rod 11 is detachably connected with the balance ring ii 5 by bolts, and an adjusting shim plate 14 is arranged between the inlet connecting rod 11 and the balance ring ii 5; the detachable connection mode between the outlet connecting rod 13 and the annular outlet short section 7 and between the outlet connecting rod 13 and the balance ring I3 is bolt connection, and an adjusting cushion plate 14 is arranged between the outlet connecting rod 13 and the balance ring I3. In actual manufacturing, the axial lengths of the inlet connecting rod 11 and the outlet connecting rod 13 may have deviation, and the inlet connecting rod 11 and the balance ring II 5 and the outlet connecting rod 13 and the mounting surface of the balance ring I3 are firmly connected by grinding the thickness of the adjusting backing plate 14.
In the technical scheme, the inlet connecting rod 11 is detachably connected with the annular inlet short section 1 and the inlet connecting rod 11 is detachably connected with the balance ring II 5 through bolts, and an adjusting shim plate is arranged between the inlet connecting rod 11 and the annular inlet short section 1; the detachable connection mode between the outlet connecting rod 13 and the annular outlet short section 7 and between the outlet connecting rod 13 and the balance ring I3 is bolt connection, and an adjusting cushion plate is arranged between the outlet connecting rod 13 and the annular outlet short section 7. The thickness of the pad plates is adjusted through grinding, so that the inlet connecting rod 11 and the mounting surfaces of the annular inlet short joint 1 and the outlet connecting rod 13 and the annular outlet short joint 7 are firmly connected
In the technical scheme, the inlet working corrugated pipe 2 and the annular inlet short section 1, the inlet working corrugated pipe 2 and the balance ring I3, the balance corrugated pipe 4 and the balance ring II 5, the outlet working corrugated pipe 6 and the balance ring II 5, and the outlet working corrugated pipe 6 and the annular outlet short section 7 are fixedly connected by welding. During welding, it is to be ensured that the inlet working bellows 2 and the annular inlet nipple 1, the inlet working bellows 2 and the balance ring I3, the balance bellows 4 and the balance ring II 5, the outlet working bellows 6 and the balance ring II 5, and the outlet working bellows 6 and the annular outlet nipple 7 are welded completely and sealed, and the whole expansion joint is ensured to have good sealing performance.
In the technical scheme, the detachable connection mode between the guide cylinder I15 and the annular inlet short section 1, between the guide cylinder II 12 and the annular outlet short section 7 is screw connection. As shown in fig. 2, 16 is a screw for connecting the annular inlet nipple 1 and the guide cylinder i 15.
In the above technical solution, the inlet connecting rod 11 and the outlet connecting rod 13 are in a frame-type plate welding structure. The frame type plate welding structure replaces a pull plate structure of a conventional welding type straight pipe pressure balance type expansion joint, and the integral rigidity of the structure is enhanced.
In the above technical solution, flange backing plates (not shown) used as mounting surfaces of the inlet connecting rod 11 and the outlet connecting rod 13 are welded on the circular ring surfaces of the annular inlet nipple 1, the balance ring i 3, the balance ring ii 5 and the annular outlet nipple 7.
In the above technical scheme, a section of transition cylinder is reserved on the annular inlet nipple 1, the balance ring I3, the balance ring II 5 and the annular outlet nipple 7, and after the outlet working bellows 2, the balance bellows 4 or the inlet working bellows 6 are cut off, a groove can be machined on the transition cylinder again for welding the inlet working bellows 2, the balance bellows 4 or the outlet working bellows 6.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (9)
1. The utility model provides a large-scale assembled straight tube pressure balance type expansion joint which characterized in that includes:
the guide cylinder I is detachably connected with an annular inlet short section;
the guide cylinder II is detachably connected with an annular outlet nipple; a gap is reserved between the guide cylinder I and the guide cylinder II, and the central axes of the guide cylinder I and the guide cylinder II are coincided;
the inlet working corrugated pipe is sleeved outside the guide cylinder I, one end of the inlet working corrugated pipe is fixedly connected with the annular inlet short section, and the other end of the inlet working corrugated pipe is fixedly connected with the balance ring I; the balance corrugated pipe is sleeved outside the guide cylinder I and the guide cylinder II, one end of the balance corrugated pipe is fixedly connected with the balance ring I, and the other end of the balance corrugated pipe is fixedly connected with the balance ring II; the outlet working corrugated pipe is sleeved outside the guide cylinder II, one end of the outlet working corrugated pipe is fixedly connected with the balance ring II, and the other end of the outlet working corrugated pipe is fixedly connected with the annular outlet short section;
the inlet connecting rod and the outlet connecting rod are arranged in the expansion joint, and two ends of the inlet connecting rod are detachably connected with the annular inlet short section and the balance ring II respectively; and two ends of the outlet connecting rod are detachably connected with the annular outlet nipple and the balance ring I respectively.
2. The large fabricated straight pipe pressure balance type expansion joint as claimed in claim 1, wherein the guide cylinder I and the guide cylinder II are arranged in blocks in the circumferential direction, that is, the guide cylinder I and the guide cylinder II comprise a plurality of guide plates arranged in the circumferential direction.
3. The large fabricated straight pipe pressure balance type expansion joint as claimed in claim 1, wherein the detachable connection mode between the inlet connecting rod and the annular inlet nipple, the detachable connection mode between the inlet connecting rod and the balance ring II are bolt or screw connection, and an adjusting shim plate is arranged between the inlet connecting rod and the balance ring II; the detachable connection mode between the outlet connecting rod and the annular outlet short section and between the outlet connecting rod and the balance ring I is bolt or screw connection, and an adjusting base plate is arranged between the outlet connecting rod and the balance ring I.
4. The large fabricated straight pipe pressure balance type expansion joint as claimed in claim 1, wherein the detachable connection between the inlet connecting rod and the annular inlet nipple, the detachable connection between the inlet connecting rod and the balance ring II are bolt or screw connections, and an adjusting shim plate is arranged between the inlet connecting rod and the annular inlet nipple; the detachable connection mode between the outlet connecting rod and the annular outlet short section and between the outlet connecting rod and the balance ring I is bolt or screw connection, and an adjusting base plate is arranged between the outlet connecting rod and the annular outlet short section.
5. The large fabricated straight pipe pressure balance type expansion joint as claimed in claim 1, wherein the inlet working bellows and annular inlet nipple, inlet working bellows and balance ring i, balance bellows and balance ring ii, outlet working bellows and balance ring ii, and outlet working bellows and annular outlet nipple are fixedly connected by welding.
6. The large fabricated straight pipe pressure balance type expansion joint as claimed in claim 1, wherein the detachable connection mode between the guide cylinder I and the annular inlet short section and between the guide cylinder II and the annular outlet short section is screw connection.
7. A large scale fabricated straight pipe pressure balanced expansion joint as claimed in claim 1 wherein said inlet and outlet tie-rods are frame-type plate welded structures.
8. The large fabricated straight pipe pressure balance type expansion joint as claimed in claim 1, wherein flange backing plates serving as mounting surfaces of the inlet connecting rod and the outlet connecting rod are welded on the circular ring surfaces of the annular inlet nipple, the balance ring I, the balance ring II and the annular outlet nipple.
9. The large fabricated straight pipe pressure balance type expansion joint as claimed in claim 1, wherein a section of transition cylinder is reserved on the annular inlet nipple, the balance ring I, the balance ring II and the annular outlet nipple.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021713162 | 2020-08-17 | ||
| CN2020217131627 | 2020-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112082031A true CN112082031A (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011004330.XA Pending CN112082031A (en) | 2020-08-17 | 2020-09-22 | Large-scale assembled straight tube pressure balance type expansion joint |
| CN202022090354.3U Active CN212319138U (en) | 2020-08-17 | 2020-09-22 | Large-scale assembled straight tube pressure balance type expansion joint |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022090354.3U Active CN212319138U (en) | 2020-08-17 | 2020-09-22 | Large-scale assembled straight tube pressure balance type expansion joint |
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| Country | Link |
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| CN (2) | CN112082031A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117189024A (en) * | 2023-10-13 | 2023-12-08 | 中国石油大学(北京) | Oil pipe passing packer with corrugated and net-shaped composite steel skeleton |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112082031A (en) * | 2020-08-17 | 2020-12-15 | 中国空气动力研究与发展中心高速空气动力研究所 | Large-scale assembled straight tube pressure balance type expansion joint |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204879240U (en) * | 2015-08-04 | 2015-12-16 | 沈阳晨光弗泰波纹管有限公司 | Full external pressure bypass pressure balance type compensator |
| CN205037019U (en) * | 2015-10-14 | 2016-02-17 | 无锡金龙石化冶金设备制造有限公司 | Straight pipe pressure balance type compensator |
| CN105650396A (en) * | 2016-04-06 | 2016-06-08 | 中科合成油工程股份有限公司 | Straight-tube pressure-balance type bellows expansion joint |
| CN107218466A (en) * | 2017-06-16 | 2017-09-29 | 张兴达 | Tipping formula pipeline |
| CN107387925A (en) * | 2017-08-16 | 2017-11-24 | 洛阳双瑞特种装备有限公司 | The used ball straight pipe pressure-balancing type expansion joint of HTGR |
| CN207349672U (en) * | 2017-11-01 | 2018-05-11 | 沈阳晨光弗泰波纹管有限公司 | A kind of straight pipe pressure-balancing type expansion joint and its component |
| CA3046640A1 (en) * | 2016-12-13 | 2018-06-21 | Monsanto Technology Llc | Flange joint assembly for flammable liquid |
| CN211175867U (en) * | 2019-12-11 | 2020-08-04 | 江苏祥荣机械制造有限公司 | High-pressure balance type compensator |
| CN212319138U (en) * | 2020-08-17 | 2021-01-08 | 中国空气动力研究与发展中心高速空气动力研究所 | Large-scale assembled straight tube pressure balance type expansion joint |
-
2020
- 2020-09-22 CN CN202011004330.XA patent/CN112082031A/en active Pending
- 2020-09-22 CN CN202022090354.3U patent/CN212319138U/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204879240U (en) * | 2015-08-04 | 2015-12-16 | 沈阳晨光弗泰波纹管有限公司 | Full external pressure bypass pressure balance type compensator |
| CN205037019U (en) * | 2015-10-14 | 2016-02-17 | 无锡金龙石化冶金设备制造有限公司 | Straight pipe pressure balance type compensator |
| CN105650396A (en) * | 2016-04-06 | 2016-06-08 | 中科合成油工程股份有限公司 | Straight-tube pressure-balance type bellows expansion joint |
| CA3046640A1 (en) * | 2016-12-13 | 2018-06-21 | Monsanto Technology Llc | Flange joint assembly for flammable liquid |
| CN107218466A (en) * | 2017-06-16 | 2017-09-29 | 张兴达 | Tipping formula pipeline |
| CN107387925A (en) * | 2017-08-16 | 2017-11-24 | 洛阳双瑞特种装备有限公司 | The used ball straight pipe pressure-balancing type expansion joint of HTGR |
| CN207349672U (en) * | 2017-11-01 | 2018-05-11 | 沈阳晨光弗泰波纹管有限公司 | A kind of straight pipe pressure-balancing type expansion joint and its component |
| CN211175867U (en) * | 2019-12-11 | 2020-08-04 | 江苏祥荣机械制造有限公司 | High-pressure balance type compensator |
| CN212319138U (en) * | 2020-08-17 | 2021-01-08 | 中国空气动力研究与发展中心高速空气动力研究所 | Large-scale assembled straight tube pressure balance type expansion joint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117189024A (en) * | 2023-10-13 | 2023-12-08 | 中国石油大学(北京) | Oil pipe passing packer with corrugated and net-shaped composite steel skeleton |
Also Published As
| Publication number | Publication date |
|---|---|
| CN212319138U (en) | 2021-01-08 |
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