CN114110289B - Large-compensation compact compensator - Google Patents
Large-compensation compact compensator Download PDFInfo
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- CN114110289B CN114110289B CN202210093126.2A CN202210093126A CN114110289B CN 114110289 B CN114110289 B CN 114110289B CN 202210093126 A CN202210093126 A CN 202210093126A CN 114110289 B CN114110289 B CN 114110289B
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- compensation
- shaped
- pressing strip
- pressing
- layer
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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
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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
- F16L51/026—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with interior reinforcement
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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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
Abstract
The invention relates to the field of thermal compensation for environmental wind tunnels, and discloses a large-compensation compact compensator which comprises an installation component and a flexible compensation ring, wherein the compensation ring is installed between sections needing to be connected and is fixed on the connecting sections in a clamping manner through the installation component; the compensation ring comprises an inner V-shaped compensation layer with an edge pressing function and an outer arc-shaped protection layer with the edge pressing function, and the inner V-shaped compensation layer with the edge pressing function and the outer arc-shaped protection layer with the edge pressing function are vulcanized into a whole; the invention can be installed in a small space, realizes large compensation, is convenient to maintain, can be arranged in the hole body for replacement by utilizing the flexibility characteristic of the compensator, and is convenient to maintain.
Description
Technical Field
The invention relates to a thermal compensation device for an environmental wind tunnel, belongs to the technical field of temperature stress release of wind tunnel pipelines, and is used for ground simulation tests of vehicles and the like.
Background
In an environmental wind tunnel related to temperature change, certain measures must be taken to release temperature stress, and because the drift diameter of a wind tunnel pipeline is large, the following measures are generally taken:
1. a metal corrugated pipe compensator. The deformation through the ripple festival releases temperature stress, nevertheless because the restriction of ripple festival self rigidity and creep, when pipeline axial, horizontal and angle displacement all need compensate, the length of bellows can be very long, has restricted its use, simultaneously, to the pipeline of square cross section, if adopt metal bellows compensator, must consider the fillet transition, the problem of bringing is that the latus rectum of bellows will increase, the pipeline of butt joint with the bellows must be designed into variable cross section's changeover portion, it is loaded down with trivial details to implement.
2. A rubber compensator. The flexibility of available rubber can provide great multidimension direction compensation volume in relatively little within range, but need the customization to the pipeline of big latus rectum especially square cross-section, and the mould expense is higher, and the combined cost is not lower than metal bellows compensator, and simultaneously, rubber compensator must be connected through flange and front and back section, considers that the pipeline of thermal environment wind-tunnel need carry out outer heat preservation and handles, and rubber compensator and maintenance are inconvenient.
3. Expansion joint + lap joint metal sheet structure. The metal plate fatigue test device is widely used in a low-speed wind tunnel in a normal-temperature and pressurized working environment, but is easy to generate fatigue damage to the metal plate in a hot environment wind tunnel.
Disclosure of Invention
Therefore, in order to overcome the above disadvantages, the present invention provides a compact compensator which is installed in a small space, realizes large compensation, and is convenient to maintain, and particularly, the compact compensator comprises a mounting assembly and a compensating ring, wherein the compensating ring is installed between the sections to be connected and is fixed on the connecting section in a clamping manner through the mounting assembly;
the compensation ring comprises an inner V-shaped compensation layer with an edge pressing and an outer arc-shaped protection layer with an edge pressing,
the V-shaped compensation layer with the edge pressing and the arc-shaped protection layer with the edge pressing are vulcanized into a whole.
Preferably, the V-shaped compensation layer with the edge pressing and the arc-shaped protection layer with the edge pressing are internally laid with fabric enhancement layers, and the purpose of the arrangement is to improve the bearing capacity of the compensation ring.
Preferably, the V-shaped compensation layer in the belt edge pressing is provided with 9V-shaped grooves, so that the clearance compensation of 100mm of axial displacement and 40mm of transverse displacement is realized.
Preferably, the depth of the V-shaped groove is 6.7 mm.
Preferably, the outer arc-shaped protective layer with the pressure edge is provided with air holes, and the arrangement aims to prevent the cavity gas from expanding at high temperature and ensure the balance of the internal pressure and the external pressure.
Preferably, the mounting assembly comprises a first pressing strip and a second pressing strip, and the edge pressing of the two ends of the compensation ring is fixed to the connecting section in a clamping manner through the first pressing strip and the second pressing strip respectively;
the first pressing strip and the second pressing strip are fixedly connected with the connecting section through connecting screw assemblies.
Preferably, the connecting screw assembly comprises a connecting screw, a connecting nut and a rubber gasket, the first pressing strip is connected with the connecting section on one side through the connecting screw and locked through the rubber gasket and the connecting nut,
the second pressing strip is connected with the connecting section on the other side through a connecting screw and is locked through a rubber gasket and a connecting nut;
in order to improve the connection tightness, silica gel is filled in gaps among the connecting screw, the first pressing strip, the second pressing strip and the connecting section; and the first pressing strip and the corresponding connecting section are sealed by adopting metal bonding glue, and the second pressing strip and the corresponding connecting section are sealed by adopting metal bonding glue.
The invention has the following advantages:
the invention has reasonable design, can be arranged in the hole body for replacement by utilizing the flexibility characteristic of the compensator and is convenient to maintain; and the structure is ingenious, adopts the fixed compensation ring of centre gripping's mode, and is sealed effectual, and the compensation ring constitutes including 9 degree of depth 6.7 mm's V-arrangement grooves simultaneously, and the purpose is to realize axial displacement 50mm, lateral displacement 20 mm's clearance compensation.
The reasonable design area is pressed the outer arc protective layer of limit and can be prevented that foreign matter from damaging the working face of taking V type compensating layer in the limit to take V type compensating layer in the limit and take the outer arc protective layer of limit to vulcanize into one wholly, simultaneously take V type compensating layer in the limit and take the interior fabric enhancement layer of all having laid of limit outer arc protective layer, can improve the bearing capacity of compensating ring.
Drawings
FIG. 1 is a cross-sectional view of a large compensation compact compensator of the present invention;
FIG. 2 is a cross-sectional view of the compensating ring of the present invention;
in the figure: 1. a first compression bar; 2. a second pressing strip; 3. a compensation ring; 31. an inner V-shaped compensation layer with an edge pressing function; 32. an outer arc-shaped protective layer with a pressure edge; 33. air holes; 4. and a V-shaped groove.
Detailed Description
The present invention will be described in detail with reference to fig. 1-2, and the technical solutions in the embodiments of the present invention will be clearly and completely described.
A large compensation compact compensator comprises a mounting assembly and a flexible compensation ring 3, wherein the compensation ring 3 is mounted between sections needing to be connected and is fixed on the connecting sections in a clamping manner through the mounting assembly;
the compensation ring 3 comprises an inner V-shaped compensation layer 31 with an edge pressing function and an outer arc-shaped protection layer 32 with an edge pressing function;
the inner V-shaped compensation layer 31 with the edge pressing and the outer arc-shaped protection layer 32 with the edge pressing are vulcanized into a whole.
In this embodiment, a fabric reinforcing layer is laid in each of the inner V-shaped compensation layer with edge pressing 31 and the outer arc-shaped protection layer with edge pressing 32.
In the present embodiment, the inner V-shaped compensation layer 31 has 9V-shaped grooves 4, so as to realize clearance compensation of ± 50mm in axial displacement and ± 20mm in transverse displacement.
In this embodiment, the V-shaped groove 4 has a depth of 6.7 mm.
In this embodiment, the flanged outer arc-shaped protection layer 32 is generally uniformly distributed with 3 or 4 air holes 33 along the circumferential direction.
In this embodiment, the mounting assembly includes a first bead 1 and a second bead 2, and two ends of the compensation ring 3 are respectively fixed to the connecting section in a clamping manner through the first bead 1 and the second bead 2;
the first pressing strip 1 and the second pressing strip 2 are fixedly connected with the connecting section through connecting screw assemblies.
In the embodiment, the connecting screw assembly comprises a connecting screw, a connecting nut and a rubber gasket,
the connecting screw component comprises a connecting screw, a connecting nut and a rubber gasket,
the first pressing strip 1 is connected with the connecting section at one side through a connecting screw and is locked through a rubber gasket and a connecting nut,
the second pressing strip 2 is connected with the connecting section on the other side through a connecting screw and is locked through a rubber gasket and a connecting nut.
In the embodiment, in order to improve the sealing effect, the gaps among the connecting screw, the first pressing strip, the second pressing strip and the connecting section are filled with silica gel; and the first pressing strip and the corresponding connecting section are sealed by adopting metal bonding glue, and the second pressing strip and the corresponding connecting section are sealed by adopting metal bonding glue.
When the compensator is used, the compensation ring is clamped between the sections needing to be connected through the first pressing strip and the second pressing strip, wherein the first pressing strip and the second pressing strip act on the blank holder of the compensation ring, and the clearance compensation of +/-50 mm of axial displacement and +/-20 mm of transverse displacement of the compensator is realized through the V-shaped compensation layer with the blank holder and with 9V-shaped grooves with the depth of 6.7 mm; the first pressing strip 1 is connected with the connecting section on one side through a connecting screw and locked through a rubber gasket and a connecting nut, and the second pressing strip 2 is connected with the connecting section on the other side through a connecting screw and locked through a rubber gasket and a connecting nut; in order to improve the sealing effect, silica gel is filled in gaps among the connecting screw, the first pressing strip, the second pressing strip and the connecting section; and the first pressing strip and the corresponding connecting section are sealed by adopting metal bonding glue, and the second pressing strip and the corresponding connecting section are sealed by adopting metal bonding glue.
The invention has reasonable design, can be arranged in the hole body for replacement by utilizing the flexibility characteristic of the compensator and is convenient to maintain; and compact structure adopts the fixed compensation circle of mode of centre gripping, and is sealed effectual.
Claims (5)
1. A large compensation compact compensator is characterized in that: the device comprises a mounting assembly and a flexible compensating ring (3), wherein the compensating ring (3) is mounted between sections to be connected and is fixed on the connecting sections in a clamping manner through the mounting assembly;
the compensation ring (3) comprises an inner V-shaped compensation layer (31) with an edge pressing function and an outer arc-shaped protection layer (32) with an edge pressing function;
the inner V-shaped compensation layer (31) with the edge pressing and the outer arc-shaped protection layer (32) with the edge pressing are vulcanized into a whole;
the inner V-shaped compensation layer (31) with the edge pressing and the outer arc-shaped protection layer (32) with the edge pressing are both internally paved with fabric enhancement layers;
the outer arc-shaped protective layer (32) with the pressure edge is provided with an air hole (33);
the inner V-shaped compensation layer (31) with the blank holder is provided with a plurality of V-shaped grooves (4);
the mounting assembly comprises a first pressing strip (1) and a second pressing strip (2), and the blank holders at two ends of the compensation ring (3) are fixed to the connecting section in a clamping mode through the first pressing strip (1) and the second pressing strip (2) respectively;
the first pressing strip (1) and the second pressing strip (2) are fixedly connected with the connecting section through connecting screw components.
2. A large compensation compact compensator according to claim 1, characterized by: the inner V-shaped compensation layer (31) with the blank holder is provided with 9V-shaped grooves (4).
3. A large compensation compact compensator according to claim 2, characterized in that: the depth of the V-shaped groove (4) is 6.7 mm.
4. A large compensation compact compensator according to claim 1, characterized by: the connecting screw component comprises a connecting screw, a connecting nut and a rubber gasket,
the first pressing strip (1) is connected with the connecting section at one side through a connecting screw and is locked through a rubber gasket and a connecting nut,
the second pressing strip (2) is connected with the connecting section on the other side through a connecting screw and is locked through a rubber gasket and a connecting nut.
5. The large compensation compact compensator of claim 4, wherein: silica gel is filled in gaps among the connecting screw, the first pressing strip, the second pressing strip and the connecting section; and the first pressing strip and the corresponding connecting section are sealed by adopting metal bonding glue, and the second pressing strip and the corresponding connecting section are sealed by adopting metal bonding glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210093126.2A CN114110289B (en) | 2022-01-26 | 2022-01-26 | Large-compensation compact compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210093126.2A CN114110289B (en) | 2022-01-26 | 2022-01-26 | Large-compensation compact compensator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114110289A CN114110289A (en) | 2022-03-01 |
| CN114110289B true CN114110289B (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210093126.2A Active CN114110289B (en) | 2022-01-26 | 2022-01-26 | Large-compensation compact compensator |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114942117B (en) * | 2022-07-25 | 2022-10-21 | 沈阳鼓风机集团股份有限公司 | Wind tunnel displacement compensation device |
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| US5813704A (en) * | 1996-03-15 | 1998-09-29 | Sankei Giken Kogyo Kabushiki Kaisya | Flexible joint |
| CN1570453A (en) * | 2004-04-27 | 2005-01-26 | 上海大学 | Sandwich construction fiber reinforced elastic body pipe compensator and forming method thereof |
| CN104471301A (en) * | 2013-05-17 | 2015-03-25 | 烟台世杰汽车配件有限公司 | Flexible pipeline device |
| CN204785268U (en) * | 2015-02-10 | 2015-11-18 | 江苏星球防腐科技有限公司 | High pressure resistant polytetrafluoroethylene corrugated expansion joint |
| CN105299374A (en) * | 2015-10-27 | 2016-02-03 | 天津万广科技有限公司 | Novel expansion joint |
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| CN112253878A (en) * | 2020-11-10 | 2021-01-22 | 江苏九辰波纹管有限公司 | Novel semicircle formula low temperature expansion joint |
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| CN203585693U (en) * | 2013-12-13 | 2014-05-07 | 何威 | Metal corrugated tube expansion joint with limiting device |
| KR101570921B1 (en) * | 2014-01-22 | 2015-11-20 | 주식회사 에스제이엠 | Flexible Tube for Exhaust Pipe of Automobiles |
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| EP3278000B1 (en) * | 2015-03-31 | 2019-10-30 | Creon | A housing for a pipeline compensator and method for manufacturing the same |
| CN109630795B (en) * | 2018-11-15 | 2020-12-18 | 刘星 | PP/PPH/PPS/PE soft ripple compensator |
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2022
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5806899A (en) * | 1995-10-23 | 1998-09-15 | Calsonic Corporation | Flexible connection tube for automotive exhaust system |
| US5813704A (en) * | 1996-03-15 | 1998-09-29 | Sankei Giken Kogyo Kabushiki Kaisya | Flexible joint |
| CN1570453A (en) * | 2004-04-27 | 2005-01-26 | 上海大学 | Sandwich construction fiber reinforced elastic body pipe compensator and forming method thereof |
| CN104471301A (en) * | 2013-05-17 | 2015-03-25 | 烟台世杰汽车配件有限公司 | Flexible pipeline device |
| CN204785268U (en) * | 2015-02-10 | 2015-11-18 | 江苏星球防腐科技有限公司 | High pressure resistant polytetrafluoroethylene corrugated expansion joint |
| CN105299374A (en) * | 2015-10-27 | 2016-02-03 | 天津万广科技有限公司 | Novel expansion joint |
| CN205173826U (en) * | 2015-12-07 | 2016-04-20 | 诸暨市蓝天非金属工艺研究所 | Novel non -metallic expansion joint |
| CN209671858U (en) * | 2018-11-15 | 2019-11-22 | 刘星 | The soft wave compensator of V-type PP/PPH/PPS/PE connection |
| CN209370683U (en) * | 2019-01-10 | 2019-09-10 | 锐驰恩科技（大连）有限公司 | A kind of non-metal expansion joint self sealing structure for hot air duct |
| CN112253878A (en) * | 2020-11-10 | 2021-01-22 | 江苏九辰波纹管有限公司 | Novel semicircle formula low temperature expansion joint |
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| CN114110289A (en) | 2022-03-01 |
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