CN211424014U - Vacuum anti-leakage corrugated pipe - Google Patents
Vacuum anti-leakage corrugated pipe Download PDFInfo
- Publication number
- CN211424014U CN211424014U CN201922437388.2U CN201922437388U CN211424014U CN 211424014 U CN211424014 U CN 211424014U CN 201922437388 U CN201922437388 U CN 201922437388U CN 211424014 U CN211424014 U CN 211424014U
- Authority
- CN
- China
- Prior art keywords
- air bag
- corrugated pipe
- gasbag
- vacuum
- pipe body
- 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
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 4
- 239000002737 fuel gas Substances 0.000 abstract description 5
- 239000000295 fuel oil Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 238000012423 maintenance Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses a bellows is prevented leaking in vacuum, including the ripple body, the bellows external cover is equipped with one deck ripple outer tube, forms a vacuum cavity between ripple body and the ripple outer tube, the vacuum cavity is connected with a pressure sensor, pressure sensor is connected with an alarm device, its characterized in that: the leakage plugging device comprises a corrugated pipe body, and is characterized in that a leakage plugging component is arranged at the inlet end of the corrugated pipe body, the leakage plugging component comprises an air bag I, a support, an air bag II and a circular supporting plate body, the circular supporting plate body is installed in the corrugated pipe body through the support, the air bag I and the air bag II are both in an annular structure, the air bag I is fixedly installed in a groove formed in the inner wall of the corrugated pipe body, the air bag II is sleeved on the side surface of the circular supporting plate body, and the air bag I and the air bag; the corrugated pipe not only has the function of leakage alarm, but also can be plugged after leakage, so that the leakage of fuel oil and gas is reduced.
Description
Technical Field
The utility model relates to a bellows is prevented leaking in vacuum belongs to bellows technical field.
Background
The corrugated pipe is a tubular elastic sensitive element which is formed by connecting foldable corrugated sheets along the folding and stretching direction. The corrugated pipe has wide application in instruments and meters, and is mainly used as a measuring element of a pressure measuring instrument to convert pressure into displacement or force. The corrugated pipe has thin pipe wall and high sensitivity, and the measurement range is from tens of Pa to tens of MPa. Its open end is fixed, its sealed end is in free state, and its elasticity is increased by using auxiliary helical spring or reed. When working, the pipe is extended along the length direction under the action of internal pressure, so that the movable end generates displacement in a certain relation with the pressure. The movable end drives the pointer to directly indicate the pressure. Bellows are often combined with displacement sensors to form pressure sensors that output an electrical quantity, sometimes also acting as isolation elements.
The corrugated pipe mainly comprises a metal corrugated pipe, a corrugated expansion joint, a corrugated heat exchange pipe, a diaphragm capsule, a metal hose and the like. The metal corrugated pipe is mainly applied to the effects of compensating the thermal deformation of a pipeline, damping, absorbing the settlement deformation of the pipeline and the like, and is widely applied to the industries of petrifaction, instruments, aerospace, chemical industry, electric power, cement, metallurgy and the like. The corrugated pipe made of other materials such as plastics has irreplaceable effects in the fields of medium conveying, electric power threading, machine tools, household appliances and the like.
Thereby current bellows can appear the damage of bellows because long-term use when using in oil, gas and lead to leaking, but current bellows only is provided with the warning setting when leaking, does not have specific anti-leakage setting, and the staff has certain blank time between accepting the alarm that leaks and send to taking measures, for leading to a large amount of leakages of oil, gas.
The application numbers are: CN201520300237.1, publication no: the utility model discloses a CN204739355U utility model discloses a vacuum leakage-proof corrugated pipe, which comprises a metal corrugated pipe body, wherein the metal corrugated pipe body comprises an outer metal corrugated pipe layer, an inner metal corrugated pipe layer and a vacuum cavity positioned between the two layers, the outer metal corrugated pipe layer, the inner metal corrugated pipe layer and the vacuum cavity form a closed cavity, a valve and a pressure sensor are arranged on the outer metal corrugated pipe layer, the valve and the pressure sensor are respectively connected with the outer metal corrugated pipe layer in a sealing manner, a flanging sleeve is welded at the end of a straight section of the metal corrugated pipe body, and a flange is sleeved on the periphery of the flanging sleeve; the utility model discloses a prevent leaking effectually, do benefit to the material that needs to prevent leaking such as carrying fuel gas, can keep corrugated pipe compensator absorbed vibration's effect, and product life is long, and the equipment maintenance is also comparatively convenient.
However, the utility model mainly detects the change of the pressure value by adopting the pressure sensor, when the inner layer or the outer layer corrugated pipe is broken, the alarm of the pressure sensor can be triggered, so as to achieve the alarm purpose, but the leakage still occurs at the stage of maintenance after the staff receives the alarm signal; namely: the medium (fuel oil and gas) leakage still occurs in the blank time.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art, appear leaking when the bellows takes place to damage, receive the shortcoming that its medium still can leak of this blank stage of on-the-spot maintenance of police at the staff, provide a bellows are prevented leaking in vacuum, and this bellows not only has the function of leaking the warning, simultaneously, can carry out the shutoff after leaking, reduces the leakage of fuel gas.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a bellows is prevented leaking in vacuum, includes the ripple body, and the bellows body overcoat is equipped with one deck ripple outer tube, forms a vacuum cavity between ripple body and the ripple outer tube, the vacuum cavity is connected with a pressure sensor, pressure sensor is connected with an alarm device, its characterized in that: the leakage plugging device comprises a corrugated pipe body, and is characterized in that a leakage plugging component is arranged at the inlet end of the corrugated pipe body, the leakage plugging component comprises an air bag I, a support, an air bag II and a circular supporting plate body, the circular supporting plate body is installed in the corrugated pipe body through the support, the air bag I and the air bag II are both in an annular structure, the air bag I is fixedly installed in a groove formed in the inner wall of the corrugated pipe body, the air bag II is sleeved on the side surface of the circular supporting plate body, the air bag I and the air bag II are both communicated with a vacuum cavity, the air bag I and the air bag II are in a compression state when the vacuum cavity; when the vacuum cavity is relieved from the vacuum state, the medium flow channel is plugged after the air bag I and the air bag II reset.
Further optimize, the one side that contacts with gasbag II on the gasbag I is equipped with the concave line, be equipped with corresponding burr with it on the gasbag II, when gasbag I contacts with gasbag II, concave line and the mutual block of burr.
The cross sections of the concave grains and the convex grains are conical or trapezoidal.
The support is a cylinder with a flow hole at the cylinder bottom, a flange which can be matched with a mounting groove arranged on the corrugated pipe body is arranged at the opening end of the cylinder, and the circular support plate body is mounted at the cylinder bottom of the cylinder through a connecting rod.
The length of the connecting rod is 1-2cm, a limiting plate is arranged on the right side of the circular supporting plate body in the corrugated pipe body, a through hole is formed in the limiting plate, and a limiting channel is formed between the limiting plate and the bottom of the cylinder.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model can alarm after being damaged, and inform the staff to maintain, and meanwhile, the leakage plugging component arranged after leakage can automatically plug the corrugated pipe, thereby reducing the leakage of fuel gas and being safer when in use; carry out the block through the burr that sets up and concave line, it is better to cut the medium effect after can making gasbag I, gasbag II reset, and then avoids taking place lasting leakage.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is the state diagram of the air bag I and the air bag II after the damage of the utility model occurs.
Reference numerals: 1 corrugated pipe body, 2 corrugated outer pipe, 3 vacuum cavitys, 4 gasbag I, 5 supports, 6 gasbag II, 7 circular supporting plate bodies, 8 recesses, 9 medium circulation passageways, 10 mounting grooves, 11 flanges, 12 connecting rods, 13 discharge orifices, 14 flange connections, 15 limiting plates, 16 through-holes, 17 spacing passageway, 18 pipelines.
Detailed Description
The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
A vacuum leakage-proof corrugated pipe comprises a corrugated pipe body 1, wherein a layer of corrugated outer pipe 2 is sleeved outside the corrugated pipe body 1, a vacuum cavity 3 is formed between the corrugated pipe body 1 and the corrugated outer pipe 2, namely the corrugated outer pipe 2 is sleeved on the corrugated pipe body 1, the vacuum cavity 3 is connected with a pressure sensor, the pressure sensor is used for detecting the pressure value in the vacuum cavity 3, the pressure sensor is connected with an alarm device, the alarm device is used for giving an alarm, wherein a leakage plugging component is arranged at the inlet end of the corrugated pipe body 1, the leakage plugging component comprises an air bag I4, a support 5, an air bag II 6 and a circular supporting plate body 7, the circular supporting plate body 7 is arranged in the corrugated pipe body 1 through the support 5, the air bag I4 and the air bag II 6 are both in an annular structure, the air bag I4 is fixedly arranged in a groove 8, the air bag II 6 is sleeved on the side face of the circular support plate body 7, the air bag I4 and the air bag II 6 are both communicated with the vacuum cavity 3, when the vacuum cavity 3 is in a vacuum state, the air bag I4 and the air bag II 6 are in a compressed state, and a medium circulation channel 9 is formed between the air bag I4 and the air bag II 6; when the vacuum cavity 3 is released from the vacuum state, the medium flow channel 9 is blocked after the air bags I4 and II 6 are reset.
The air bag I4 is communicated with the vacuum cavity 3 through a pipeline 18, the air bag II 6 is communicated with the air bag I4, the air bag I4 is bonded on the groove 8, and the air bag II 6 is bonded on the side face of the circular support plate body 7.
Therefore, in actual use, the vacuum cavity 3 is vacuumized, and meanwhile, due to the fact that the air bags I4 and II 6 are communicated with the vacuum cavity 3, after the vacuum cavity 3 is vacuumized, the interior of the vacuum cavity 3 is in a negative pressure state, the air bags I4 and II 6 are also in a dry and flat state, and at the moment, an annular medium circulation channel 9 is formed between the air bags I4 and II 6, and medium circulation is facilitated; when the corrugated pipe body 1 or the corrugated outer pipe 2 is damaged, namely: after the corrugated pipe body 1 is damaged, as the interiors of the vacuum cavity 3, the air bag I4 and the air bag II 6 are in a negative pressure state, at the moment, a medium enters the air bag I4 and the air bag II 6 from the damaged part, so that the air bag I4 and the air bag II 6 are reset, the air bag I4 and the air bag II 6 are in mutual contact and are extruded, and the medium circulation channel 9 is blocked; when the corrugated outer pipe 2 is damaged, external air can enter the air bag I4 and the air bag II 6, and the purpose of plugging the medium circulation channel 9 is achieved, so that the medium circulation channel 9 can be cut off quickly under the condition of damage, and leakage of the medium is reduced; when leakage occurs, the pressure sensor detects the change of the pressure value, the alarm device realizes the alarm function and informs maintenance personnel to maintain, and the large-scale leakage cannot occur before the maintenance personnel reach a maintenance point; the utility model discloses will be safer when using.
The support 5 is a cylinder with a flow hole 13 at the bottom, a flange 11 capable of fitting with a mounting groove 10 arranged on the corrugated pipe body 1 is arranged at the opening end of the cylinder, and the circular support plate 7 is mounted at the bottom of the cylinder through a connecting rod 12.
Like this, through flange 11 and mounting groove 10 coincide, realize the location and spacing of support 5, convenient more, swift when mounting bracket 5 in the actual use.
In practical use, the corrugated pipe body 1 may be provided with connecting flanges 14 at both ends thereof.
Example 2
The embodiment is further optimized on the basis of embodiment 1, in this embodiment, the length of the connecting rod 12 is 1-2cm, a limiting plate 15 is arranged on the right side of the circular supporting plate body 7 in the corrugated pipe body 1, a through hole 16 is formed in the limiting plate 15, and a limiting channel 17 is formed between the limiting plate 15 and the bottom of the cylinder.
In this embodiment, the connecting rod 12 is 1.5cm in length.
Like this, when actual use, the medium passes through flow hole 13 and through-hole 16 flow, and the spacing passageway 17 that forms will play spacing effect to gasbag I4 and II 6 of gasbag, after I4 of gasbag and II 6 of gasbag reset, can avoid gasbag I4 and II 6 of gasbag to take place great skew under the effect of medium, lead to the extrusion state of gasbag I4 and II 6 of gasbag to remove or appear great gap, and limiting plate 15 will support I4 of gasbag and II 6 of gasbag with the bobbin base of drum, and then guarantee to cut the effect of medium circulation after I4 of gasbag and II 6 of gasbag extrude.
Example 3
The implementation is further optimized on the basis of embodiment 1 or 2, in this embodiment, the side, in contact with II 6 of gasbag, of gasbag I4 is equipped with the concave line, be equipped with the burr that corresponds with it on II 6 of gasbag, when gasbag I4 and II 6 of gasbag contact, concave line and burr block each other.
Like this, taking place the damage after, gasbag I4 resets with II 6 of gasbag and makes the mutual block of dimpled grain and burr, it cuts the effect better, take place the damage after, the pressure transition in the pipeline 18 just leads to the pressure value difference at I4 of gasbag and II 6 both ends of gasbag like this, the medium will promote I4 of gasbag and II 6 of gasbag, and set up after dimpled grain and the burr, it is firmer when can making I4 of gasbag and II 6 extrusion contact of gasbag, guarantee the effect that the medium cuts, and then avoid appearing great leakage.
Preferably, the cross sections of the concave lines and the convex lines are conical or trapezoidal.
In this embodiment, the cross sections of the concave grains and the convex grains are trapezoidal, so that the matching effect of the air bag I4 and the air bag II 6 after restoration is further improved, and the sealing effect during contact is better.
Claims (5)
1. The utility model provides a bellows is prevented leaking in vacuum, includes the ripple body, and the bellows body overcoat is equipped with one deck ripple outer tube, forms a vacuum cavity between ripple body and the ripple outer tube, the vacuum cavity is connected with a pressure sensor, pressure sensor is connected with an alarm device, its characterized in that: the leakage plugging device comprises a corrugated pipe body, and is characterized in that a leakage plugging component is arranged at the inlet end of the corrugated pipe body, the leakage plugging component comprises an air bag I, a support, an air bag II and a circular supporting plate body, the circular supporting plate body is installed in the corrugated pipe body through the support, the air bag I and the air bag II are both in an annular structure, the air bag I is fixedly installed in a groove formed in the inner wall of the corrugated pipe body, the air bag II is sleeved on the side surface of the circular supporting plate body, the air bag I and the air bag II are both communicated with a vacuum cavity, the air bag I and the air bag II are in a compression state when the vacuum cavity; when the vacuum cavity is relieved from the vacuum state, the medium flow channel is plugged after the air bag I and the air bag II reset.
2. A vacuum leak prevention bellows as defined in claim 1, wherein: the one side that contacts with gasbag II on the gasbag I is equipped with the dimpled grain, be equipped with corresponding burr with it on the gasbag II, when gasbag I contacts with gasbag II, the dimpled grain blocks with the burr each other.
3. A vacuum leak prevention bellows as defined in claim 2, wherein: the cross sections of the concave lines and the convex lines are conical or trapezoidal.
4. A vacuum leak prevention bellows as defined in claim 1, wherein: the support is a cylinder with a flow hole at the cylinder bottom, a flange which can be matched with a mounting groove arranged on the corrugated pipe body is arranged at the opening end of the cylinder, and the circular support plate body is mounted at the cylinder bottom of the cylinder through a connecting rod.
5. A vacuum leak prevention bellows as defined in claim 4, wherein: the length of the connecting rod is 1-2cm, a limiting plate is arranged on the right side of the circular supporting plate body in the corrugated pipe body, a through hole is formed in the limiting plate, and a limiting channel is formed between the limiting plate and the bottom of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922437388.2U CN211424014U (en) | 2019-12-30 | 2019-12-30 | Vacuum anti-leakage corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922437388.2U CN211424014U (en) | 2019-12-30 | 2019-12-30 | Vacuum anti-leakage corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211424014U true CN211424014U (en) | 2020-09-04 |
Family
ID=72252521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922437388.2U Active CN211424014U (en) | 2019-12-30 | 2019-12-30 | Vacuum anti-leakage corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211424014U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739081A (en) * | 2021-09-13 | 2021-12-03 | 芜湖中燃城市燃气发展有限公司 | Liquefied gas pipeline interface protection device and method |
-
2019
- 2019-12-30 CN CN201922437388.2U patent/CN211424014U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739081A (en) * | 2021-09-13 | 2021-12-03 | 芜湖中燃城市燃气发展有限公司 | Liquefied gas pipeline interface protection device and method |
| CN113739081B (en) * | 2021-09-13 | 2023-08-08 | 芜湖中燃城市燃气发展有限公司 | Liquefied gas pipeline interface protection device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105241614A (en) | Detection apparatus of pressure pipeline | |
| CN102072406B (en) | Device and method for detecting product pipeline leakage condition | |
| CN201503332U (en) | Packing box for hydraulic test on floating tube sheet end of floating head type heat exchanger | |
| CN211424014U (en) | Vacuum anti-leakage corrugated pipe | |
| CN206648790U (en) | A kind of calibrating installation of airtight leak detector | |
| CN110906091B (en) | Full-drift-diameter and leak-proof vacuum bellows | |
| CN206361328U (en) | A kind of oil drilling it is special can self-check type Pressurized plugging clamp | |
| CN203131012U (en) | Air inflation type high-precision welded corrugated pipe | |
| CN211042340U (en) | Nozzle flowmeter | |
| CN208397543U (en) | A kind of rapid-maintenance pipeline leakage device | |
| CN209214866U (en) | Air tightness tester suitable for ship piping system | |
| CN208333772U (en) | Pipeline thread tightness detection tool and pipeline thread tightness detection device | |
| CN215985068U (en) | High-temperature high-humidity air duct sealing performance detection device | |
| CN216050548U (en) | Testing device for sealing element | |
| CN220102479U (en) | Pipeline sealing and clamping device | |
| CN212158969U (en) | Inner leakage detection device of hydraulic blowout preventer | |
| CN213579655U (en) | Bell jar type gas meter detection device | |
| CN211423679U (en) | Anti-leakage vacuum corrugated pipe | |
| CN214889581U (en) | Corrugated pipe convenient to connect | |
| CN212131694U (en) | Low-pressure water supply expansion joint for power station | |
| CN214744010U (en) | Novel sewage pipes for municipal administration sewage treatment | |
| CN213779377U (en) | A just, tear joint open for manometer examination | |
| CN210003605U (en) | detection hydraulic cylinder device | |
| CN216050555U (en) | Air tightness detection device for corrugated pipe production | |
| CN218297525U (en) | Air tightness detection device for building engineering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 637200 Duofu Industrial Park, Xichong County, Nanchong City, Sichuan Province Patentee after: SICHUAN JIUTIAN VACUUM TECHNOLOGY CO.,LTD. Country or region after: China Address before: 637200 Duofu Industrial Park, Xichong County, Nanchong City, Sichuan Province Patentee before: SICHUAN JIUTIAN VACUUM TECHNOLOGY Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |