CN113339615A - Hinge type corrugated expansion joint for preventing material abrasion - Google Patents
Hinge type corrugated expansion joint for preventing material abrasion Download PDFInfo
- Publication number
- CN113339615A CN113339615A CN202110747389.6A CN202110747389A CN113339615A CN 113339615 A CN113339615 A CN 113339615A CN 202110747389 A CN202110747389 A CN 202110747389A CN 113339615 A CN113339615 A CN 113339615A
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- Prior art keywords
- expansion joint
- pipeline
- movably connected
- sliding
- hinge type
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention relates to the technical field of expansion joints and discloses a hinge type corrugated expansion joint for preventing material abrasion, which comprises an expansion joint shell and a pipeline, and further comprises an induction mechanism, a trigger mechanism, a reminding mechanism and a compensation mechanism, wherein the outer side of the expansion joint shell is movably connected with the induction mechanism, the induction mechanism is used for detecting whether materials in the pipeline leak or not, the outer side of the expansion joint shell is movably connected with the trigger mechanism, the trigger mechanism is used for detecting whether the expansion joint is pulled off or not, and the inner part of the pipeline is movably connected with the reminding mechanism. This prevent hinge type ripple expansion joint of material wearing and tearing uses through the cooperation of response mechanism with warning mechanism, has solved the expansion joint and has caused the material to leak at the in-process that uses and cause the problem that causes the waste, has easy operation, and advantage that degree of automation is high is used through the cooperation of trigger mechanism and compensation mechanism, and it can in time be adjusted it to draw to take off when the expansion joint outside the pipeline, easy operation, and convenient to use has saved labour cost.
Description
Technical Field
The invention relates to the technical field of expansion joints, in particular to a hinge type corrugated expansion joint for preventing materials from being worn.
Background
The expansion joint is a flexible element which can effectively compensate axial deformation, for example, the expansion joint welded on a shell of a fixed tube-plate heat exchanger has large axial flexibility and is easy to deform, can compensate the thermal expansion difference generated by the tube and the shell due to different wall temperatures, and reduces the axial load of the tube and the shell, thereby reducing the temperature difference stress of the tube, the tube plate and the shell, avoiding the strength damage, the instability damage and the tube pull-off damage, wherein the sleeve expansion joint is composed of an inner sleeve and an outer sleeve which can do axial relative movement, the inner sleeve and the outer sleeve are sealed by a packing box, when in use, the tubes at two ends are kept to move on one axis for compensating the axial expansion of a pipeline and the axial rotation of any angle, and the expansion joint has the characteristics of small volume and large compensation amount and is suitable for hot water, steam and grease media, and the compensation of thermal expansion is achieved by the sliding movement of a sliding sleeve to the outer sleeve.
The existing sleeve expansion joint only adopts a single sealing structure to seal, particle impurities are easily carried in hot water, steam and grease media, the impurities are accumulated on the inner surface of the sleeve to agglomerate, when the expansion joint is telescopic, the agglomeration easily causes excessive deformation of a sealing material, so that the hot water, the steam and the grease media are leaked, therefore, the single sealing structure is difficult to ensure the sealing property of the sleeve expansion joint, the pipe can be pulled off and damaged, the waste is caused, and therefore, the hinge type corrugated expansion joint for preventing the material abrasion is provided for solving the problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a hinge type corrugated expansion joint for preventing material abrasion, which has the advantages of simple operation, convenience in use, processing cost saving and high automation degree, and solves the problems that the existing casing expansion joint is only sealed by a single sealing structure, particle impurities are easily carried in hot water, steam and grease media, the impurities are accumulated on the inner surface of a casing pipe to agglomerate, and the agglomeration easily causes excessive deformation of a sealing material when the expansion joint is telescopic, so that the hot water, steam and grease media are leaked, so that the single sealing structure is difficult to ensure the sealing property of the casing expansion joint, the pipe is pulled off and damaged, and waste is caused.
(II) technical scheme
In order to realize the purposes of simple operation, convenient use, processing cost saving and high automation degree, the invention provides the following technical scheme: the utility model provides a prevent hinge type ripple expansion joint of material wearing and tearing, includes expansion joint shell and pipeline, still includes response mechanism, trigger mechanism, reminds mechanism and compensation mechanism, the outside swing joint of expansion joint shell has response mechanism, whether the inside material of response mechanism detection pipeline leaks, the outside swing joint of expansion joint shell has trigger mechanism, trigger mechanism detects the expansion joint and whether draws and take off, the inside swing joint of pipeline has the warning mechanism, remind the inside material leakage of mechanism suggestion pipeline, the outside swing joint of pipeline has compensation mechanism, compensation mechanism can prevent that the expansion joint shell from drawing and take off.
Furthermore, the expansion joint shell is sleeved on the outer side of the pipeline, water vapor flows through the pipeline, and the expansion joint can be pulled off along with overlarge internal pressure caused by vibration or turning inside the pipeline.
Furthermore, the induction mechanism comprises water-absorbent resin, a sliding groove, a sliding block, a conductive rod and a first sliding rheostat, the outer side of the expansion joint shell is movably connected with the water-absorbent resin, the sliding groove is formed in the expansion joint shell, the outer side of the sliding groove is movably connected with the sliding block, the outer side of the sliding block is movably connected with the conductive rod, the inner part of the sliding groove is movably connected with the first sliding rheostat, the first sliding rheostat is electrically connected with the piezoresistor, when leakage occurs in a pipeline, the water-absorbent resin expands to push the sliding block to move outwards in the sliding groove, so that the conductive rod moves in the first sliding rheostat, the resistance in the circuit is increased, the working voltage is reduced, and the working voltage is smaller than the maximum path voltage of the piezoresistor and the two paths of the piezoresistor.
Furthermore, the triggering mechanism comprises a fixed support, a connecting spring, a second sliding rheostat and a conductive column, the outer side of the pipeline is movably connected with the fixed support, the inner side of the fixed support is movably connected with the connecting spring, the inner side of the connecting spring is movably connected with the second sliding rheostat, and the bottom of the second sliding rheostat is movably connected with the conductive column.
Further, the reminding mechanism comprises a piezoresistor, a reminder and an electromagnet, the piezoresistor is movably connected inside the pipeline, the reminder is electrically connected with the piezoresistor, when the piezoresistor is connected with the pipeline, the reminder sounds to remind operators of leakage at the position, the electromagnet is movably connected inside the pipeline, the electromagnet is electrically connected with the sliding rheostat, when the internal pressure of the expansion joint shell is too high, the expansion joint and the pipeline are pulled away, the sliding rheostat is pressed at the moment, the connecting spring is compressed, the resistance inside the sliding rheostat is reduced, the working voltage of the sliding rheostat is increased, the electromagnet is electrified at the moment, and the magnetism of the electromagnet is increased along with the increase of the working voltage of the sliding rheostat.
Furthermore, the compensation mechanism comprises a magnetostrictive rod, the outer side of the pipeline is movably connected with the magnetostrictive rod, the magnetostrictive rod is magnetically connected with the electromagnet, and the magnetostrictive rod extends by a corresponding length along with the increase of the magnetism of the electromagnet, so that the shell of the expansion joint keeps balance.
Furthermore, the conductive column is fixedly connected to the outer side of the pipeline, the second slide rheostat is not in contact with the expansion joint shell, and the fixed support is perpendicular to the pipeline.
Furthermore, the diameter of the sliding block is equal to that of the sliding groove, and the outer side of the conductive rod is movably connected with the first sliding rheostat.
(III) advantageous effects
Compared with the prior art, the invention provides a hinge type corrugated expansion joint for preventing material abrasion, which has the following beneficial effects:
1. this prevent hinge type ripple expansion joint of material wearing and tearing uses through the cooperation of response mechanism with warning mechanism, has solved the expansion joint and has caused the material to leak at the in-process that uses and cause the problem that causes the waste, has easy operation, and advantage that degree of automation is high is used through the cooperation of trigger mechanism and compensation mechanism, and it can in time be adjusted it to draw to take off when the expansion joint outside the pipeline, easy operation, and convenient to use has saved labour cost.
2. This prevent hinge type ripple expansion joint of material wearing and tearing uses through reminiscences and piezo-resistor's cooperation, sounds when piezo-resistor passageway reminiscences, reminds operating personnel expansion joint to appear the damage, avoids causing bigger loss, easy operation, and convenient to use uses through the cooperation of magnetostrictive rod and slide rheostat two, adjusts it according to the angle of expansion joint slope, easy operation, and convenient to use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the moving structure of the slider according to the present invention;
FIG. 3 is a schematic view of the tilted configuration of the expansion joint housing of the present invention;
fig. 4 is an enlarged schematic structural diagram of the sensing mechanism of the present invention.
In the figure: 1. an expansion joint housing; 2. a pipeline; 3. an induction mechanism; 4. a trigger mechanism; 5. a reminder mechanism; 6. a compensation mechanism; 31. a water-absorbent resin; 32. a chute; 33. a slider; 34. a conductive rod; 35. a slide rheostat I; 41. a fixed support; 42. a connecting spring; 43. a second slide rheostat; 44. a conductive post; 51. a voltage dependent resistor; 52. a reminder; 53. an electromagnet; 61. a magnetostrictive rod.
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.
The first embodiment is as follows:
referring to fig. 1-2, a hinge type corrugated expansion joint for preventing material abrasion comprises an expansion joint shell 1 and a pipeline 2, wherein the expansion joint shell 1 is sleeved outside the pipeline 2, water vapor flows inside the pipeline 2, and the expansion joint is pulled off along with overlarge internal pressure caused by vibration or turning inside the pipeline, the hinge type corrugated expansion joint further comprises a sensing mechanism 3, a triggering mechanism 4, a reminding mechanism 5 and a compensating mechanism 6, the sensing mechanism 3 is movably connected outside the expansion joint shell 1, the sensing mechanism 3 comprises water-absorbent resin 31, a sliding chute 32, a sliding block 33, a conductive rod 34 and a sliding rheostat I35, the water-absorbent resin 31 is movably connected outside the expansion joint shell 1, the sliding chute 32 is arranged inside the expansion joint shell 1, the sliding block 33 is movably connected outside the sliding chute 32, the conductive rod 34 is movably connected outside the sliding block 33, the sliding rheostat I35 is movably connected inside the sliding chute 32, the first slide rheostat 35 is electrically connected with the piezoresistor 51, when leakage occurs in the pipeline 2, the water-absorbing resin 31 expands to push the sliding block 33 to move outwards in the sliding groove 32, so that the conductive rod 34 moves in the first slide rheostat 35, the resistance in the circuit is increased, the working voltage is reduced, the working voltage is smaller than the maximum path voltage of the piezoresistor 51, and the second piezoresistor 51 is in a path.
The induction mechanism 3 detects whether the material in the pipeline leaks, the outer side of the expansion joint shell 1 is movably connected with the trigger mechanism 4, the trigger mechanism 4 detects whether the expansion joint is pulled off, the inner part of the pipeline 2 is movably connected with the reminding mechanism 5, the reminding mechanism 5 comprises a piezoresistor 51, a reminder 52 and an electromagnet 53, the inner part of the pipeline 2 is movably connected with the piezoresistor 51, the inner part of the pipeline 2 is movably connected with the reminder 52, the reminder 52 is electrically connected with the piezoresistor 51, when the piezoresistor 51 is in a passage, the reminder 52 sounds to remind an operator that the leakage exists, the inner part of the pipeline 2 is movably connected with the electromagnet 53, the electromagnet 53 is electrically connected with the sliding rheostat 43, when the internal pressure of the expansion joint shell 1 is overlarge due to the pipeline 2, the expansion joint is pulled off from the pipeline 2, the sliding rheostat 43 is pressed at the moment, the connecting spring 42 is compressed, the resistance in the sliding rheostat 43 is reduced, through the increase of the working voltage of the second slide rheostat 43, the electromagnet 53 is electrified, and along with the increase of the working voltage of the second slide rheostat 43, the magnetism increase reminding mechanism 5 of the electromagnet 53 reminds of the leakage of the materials in the pipeline 2.
Example two:
referring to fig. 1-4, a hinge type corrugated expansion joint for preventing material abrasion comprises an expansion joint shell 1 and a pipeline 2, wherein the expansion joint shell 1 is sleeved outside the pipeline 2, water vapor flows inside the pipeline 2, and the expansion joint is pulled off along with overlarge internal pressure caused by vibration or turning inside the pipeline, the hinge type corrugated expansion joint further comprises a sensing mechanism 3, a triggering mechanism 4, a reminding mechanism 5 and a compensating mechanism 6, the sensing mechanism 3 is movably connected outside the expansion joint shell 1, the sensing mechanism 3 comprises water-absorbent resin 31, a sliding chute 32, a sliding block 33, a conductive rod 34 and a first sliding rheostat 35, the water-absorbent resin 31 is movably connected outside the expansion joint shell 1, the sliding chute 32 is arranged inside the expansion joint shell 1, the sliding block 33 is movably connected outside the sliding chute 32, the diameter of the sliding block 33 is equal to the diameter of the sliding chute 32, and the sliding rheostat 35 is movably connected outside the conductive rod 34, the outer side of the sliding block 33 is movably connected with a conductive rod 34, the inner part of the sliding groove 32 is movably connected with a first sliding rheostat 35, the first sliding rheostat 35 is electrically connected with a piezoresistor 51, when leakage occurs in the pipeline 2, the water-absorbing resin 31 expands at the moment, the sliding block 33 is pushed to move outwards in the sliding groove 32, the conductive rod 34 moves in the first sliding rheostat 35, the resistance in a circuit is increased, the working voltage is reduced, the working voltage is smaller than the maximum pass voltage of the piezoresistor 51 at the moment, and the second piezoresistor 51 passes through the circuit.
The induction mechanism 3 detects whether materials in the pipeline are leaked or not, the outer side of the expansion joint shell 1 is movably connected with the trigger mechanism 4, the trigger mechanism 4 comprises a fixed support 41, a connecting spring 42, a sliding rheostat II 43 and a conductive column 44, the outer side of the pipeline 2 is movably connected with the fixed support 41, the inner side of the fixed support 41 is movably connected with the connecting spring 42, the inner side of the connecting spring 42 is movably connected with the sliding rheostat II 43, the bottom of the sliding rheostat II 43 is movably connected with the conductive column 44, the conductive column 44 is fixedly connected to the outer side of the pipeline 2, the sliding rheostat II 43 is not in contact with the expansion joint shell 1, the fixed support 41 is perpendicular to the pipeline 2, the trigger mechanism 4 detects whether the expansion joint is pulled off or not, the inner part of the pipeline 2 is movably connected with the reminding mechanism 5, the reminding mechanism 5 comprises a, the inside swing joint of pipeline 2 has reminiscences 52, and reminiscences 52 and piezo-resistor 51 electric connection, and when piezo-resistor 51 was passed through, there was the leakage here in reminiscences 52 sounds the warning operating personnel.
The inside of the pipeline 2 is movably connected with an electromagnet 53, the electromagnet 53 is electrically connected with the sliding rheostat II 43, when the pressure inside the expansion joint shell 1 is overlarge due to the pipeline 2, the expansion joint is pulled away from the pipeline 2, the sliding rheostat II 43 is pressed at the moment, the connecting spring 42 is compressed, the resistance inside the sliding rheostat II 43 is reduced, the working voltage passing through the sliding rheostat II 43 is increased, the electromagnet 53 is electrified at the moment, the magnetism of the electromagnet 53 is increased along with the increase of the working voltage of the sliding rheostat II 43, the reminding mechanism 5 prompts the leakage of the material inside the pipeline 2, the outside of the pipeline 2 is movably connected with a compensating mechanism 6, the compensating mechanism 6 comprises a magnetostrictive rod 61, the outside of the pipeline 2 is movably connected with a magnetostrictive rod 61, the magnetostrictive rod 61 is magnetically connected with the electromagnet 53, and the magnetostrictive rod 61 extends by a corresponding length along with the increase of the magnetism of the electromagnet 53, so that the expansion joint housing 1 is balanced and the compensation mechanism 6 can prevent the expansion joint housing 1 from being pulled off.
The working principle is as follows: the hinge type corrugated expansion joint for preventing material abrasion comprises an expansion joint shell 1 and a pipeline 2, and further comprises a sensing mechanism 3, a triggering mechanism 4, a reminding mechanism 5 and a compensating mechanism 6, when the device does not work, a sliding block 33 is located inside a sliding groove 32 at the moment, the resistance value of a first sliding rheostat 35 is at the minimum value, the working voltage of the first sliding rheostat 35 is the maximum at the moment, the working voltage is larger than the maximum access voltage of a piezoresistor 51, the piezoresistor 51 is disconnected, a reminder 52 does not work, a connecting spring 42 is at the original length, and a magnetostrictive rod 61 does not work.
When the pressure in the pipeline 2 is too large, the expansion joint shell 1 is inclined, so that the expansion joint is pulled away from the pipeline 2, the sliding rheostat II 43 is pressed, the connecting spring 42 is compressed, the resistance in the sliding rheostat II 43 is reduced, the working voltage of the sliding rheostat II 43 is increased, the electromagnet 53 is electrified, the magnetism of the electromagnet 53 is increased along with the increase of the working voltage of the sliding rheostat II 43, the magnetostrictive rod 61 extends for a corresponding length along with the increase of the magnetism of the electromagnet 53, so that the expansion joint shell 1 is kept balanced, when the pipeline 2 is damaged and leaks, the water-absorbing resin 31 expands at the moment, the sliding block 33 is pushed to move outwards in the sliding groove 32, the conductive rod 34 moves in the sliding rheostat I35, the resistance in the circuit is increased, the working voltage is reduced, and the working voltage is smaller than the maximum passage voltage of the piezoresistor 51 at the moment, and the second piezoresistor 51 is connected with the reminder 52, and the reminder 52 sounds to remind a worker to check and repair the circuit.
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 a hinge type ripple expansion joint of preventing material wearing and tearing, includes expansion joint shell (1) and pipeline (2), its characterized in that: still including response mechanism (3), trigger mechanism (4), warning mechanism (5) and compensation mechanism (6), the outside swing joint of expansion joint shell (1) has response mechanism (3), whether the inside material of response mechanism (3) detection pipeline leaks, the outside swing joint of expansion joint shell (1) has trigger mechanism (4), trigger mechanism (4) detect the expansion joint and whether draw and take off, the inside swing joint of pipeline (2) has warning mechanism (5), remind the inside material leakage of mechanism (5) suggestion pipeline (2), the outside swing joint of pipeline (2) has compensation mechanism (6), compensation mechanism (6) can prevent that expansion joint shell (1) from drawing and taking off.
2. A hinge type bellows expansion joint for preventing abrasion of materials according to claim 1, wherein: the expansion joint shell (1) is sleeved on the outer side of the pipeline (2), and water vapor flows through the interior of the pipeline (2).
3. A hinge type bellows expansion joint for preventing abrasion of materials according to claim 1, wherein: the induction mechanism (3) comprises water-absorbent resin (31), a sliding groove (32), a sliding block (33), a conductive rod (34) and a first sliding rheostat (35), the water-absorbent resin (31) is movably connected to the outer side of the expansion joint shell (1), the sliding groove (32) is formed in the expansion joint shell (1), the sliding block (33) is movably connected to the outer side of the sliding groove (32), the conductive rod (34) is movably connected to the outer side of the sliding block (33), and the first sliding rheostat (35) is movably connected to the inner side of the sliding groove (32).
4. A hinge type bellows expansion joint for preventing abrasion of materials according to claim 1, wherein: the trigger mechanism (4) comprises a fixed support (41), a connecting spring (42), a second sliding rheostat (43) and a conductive column (44), the outer side of the pipeline (2) is movably connected with the fixed support (41), the inner side of the fixed support (41) is movably connected with the connecting spring (42), the inner side of the connecting spring (42) is movably connected with the second sliding rheostat (43), and the bottom of the second sliding rheostat (43) is movably connected with the conductive column (44).
5. A hinge type bellows expansion joint for preventing abrasion of materials according to claim 1, wherein: reminding mechanism (5) including piezo-resistor (51), reminiscences (52) and electro-magnet (53), the inside swing joint of pipeline (2) has piezo-resistor (51), the inside swing joint of pipeline (2) has reminiscences (52), the inside swing joint of pipeline (2) has electro-magnet (53).
6. A hinge type bellows expansion joint for preventing abrasion of materials according to claim 1, wherein: the compensation mechanism (6) comprises a magnetostrictive rod (61), and the outside of the pipeline (2) is movably connected with the magnetostrictive rod (61).
7. The hinge type bellows expansion joint for preventing abrasion of material according to claim 4, wherein: the conductive column (44) is fixedly connected to the outer side of the pipeline (2), the sliding rheostat II (43) is not in contact with the expansion joint shell (1), and the fixed support (41) is perpendicular to the pipeline (2).
8. A hinge type bellows expansion joint for preventing abrasion of materials according to claim 3, wherein: the diameter of the sliding block (33) is equal to that of the sliding groove (32), and the outer side of the conductive rod (34) is movably connected with a first sliding rheostat (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110747389.6A CN113339615A (en) | 2021-07-02 | 2021-07-02 | Hinge type corrugated expansion joint for preventing material abrasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110747389.6A CN113339615A (en) | 2021-07-02 | 2021-07-02 | Hinge type corrugated expansion joint for preventing material abrasion |
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| Publication Number | Publication Date |
|---|---|
| CN113339615A true CN113339615A (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110747389.6A Withdrawn CN113339615A (en) | 2021-07-02 | 2021-07-02 | Hinge type corrugated expansion joint for preventing material abrasion |
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| CN (1) | CN113339615A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004010232A1 (en) * | 2004-03-03 | 2005-09-29 | Mtu Friedrichshafen Gmbh | Connecting element for connecting of exhaust pipe to exhaust gas turbocharger has spring for elastic pretensioning of connecting element in relation to bend |
| CN101344205A (en) * | 2008-08-18 | 2009-01-14 | 江苏宏博机械制造有限公司 | Zero-thrust rotary compensator |
| DE202018000053U1 (en) * | 2018-01-05 | 2018-02-04 | Kai Leufker | Retrofittable pipe burst / consumption detection with shutdown |
| CN109538868A (en) * | 2018-12-30 | 2019-03-29 | 江苏恒丰波纹管有限公司 | Single axial expansion joint equipped with thickness and crack detection device |
| CN110541992A (en) * | 2019-09-19 | 2019-12-06 | 高严慧 | A kind of compensator |
-
2021
- 2021-07-02 CN CN202110747389.6A patent/CN113339615A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004010232A1 (en) * | 2004-03-03 | 2005-09-29 | Mtu Friedrichshafen Gmbh | Connecting element for connecting of exhaust pipe to exhaust gas turbocharger has spring for elastic pretensioning of connecting element in relation to bend |
| CN101344205A (en) * | 2008-08-18 | 2009-01-14 | 江苏宏博机械制造有限公司 | Zero-thrust rotary compensator |
| DE202018000053U1 (en) * | 2018-01-05 | 2018-02-04 | Kai Leufker | Retrofittable pipe burst / consumption detection with shutdown |
| CN109538868A (en) * | 2018-12-30 | 2019-03-29 | 江苏恒丰波纹管有限公司 | Single axial expansion joint equipped with thickness and crack detection device |
| CN110541992A (en) * | 2019-09-19 | 2019-12-06 | 高严慧 | A kind of compensator |
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Application publication date: 20210903 |
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