CN110906091A - Full-diameter and anti-leakage vacuum corrugated pipe - Google Patents
Full-diameter and anti-leakage vacuum corrugated pipe Download PDFInfo
- Publication number
- CN110906091A CN110906091A CN201911395557.9A CN201911395557A CN110906091A CN 110906091 A CN110906091 A CN 110906091A CN 201911395557 A CN201911395557 A CN 201911395557A CN 110906091 A CN110906091 A CN 110906091A
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- CN
- China
- Prior art keywords
- vacuum
- vacuum corrugated
- corrugated pipe
- feed inlet
- flashboard
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 206010003694 Atrophy Diseases 0.000 description 1
- 230000037444 atrophy Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
- F16L51/025—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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0254—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor being operated by particular means
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded
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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
- F16L29/00—Joints with fluid cut-off means
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention relates to a leakage-proof vacuum corrugated pipe. The vacuum corrugated pipe base member has, the vacuum corrugated pipe base member includes the vacuum corrugated pipe wall, the runner, feed inlet and discharge gate, the vacuum corrugated pipe wall is the vacuum corrugated outer tube, the vacuum corrugated inner tube, and the clearance that has between vacuum corrugated outer tube and the vacuum corrugated inner tube constitutes, the clearance constitutes the vacuum cavity, it has the gate valve structure that can be with the feed inlet shutoff to be close to feed inlet department fixed mounting, the gate valve structure has flashboard and flashboard operating mechanism, be provided with the disk seat in the feed inlet, the disk seat has the disk seat opening with flashboard matched with, flashboard operating mechanism has the flashboard and opens and closes the chamber, flashboard operating mechanism is located the feed inlet outer wall, the extension of feed inlet outer wall acts as the flashboard and opens and closes the chamber, the flashboard rises and closes the gasbag that. The product can not only prevent leakage when damaged, but also guarantee the full drift diameter of the flow channel under the normal state.
Description
Technical Field
The invention relates to the field of vacuum, in particular to a full-bore and leakage-proof vacuum corrugated pipe.
Background
The existing corrugated pipe is a tubular elastic sensitive element formed by connecting foldable corrugated sheets along a folding and stretching direction, and mainly comprises a metal corrugated pipe, a corrugated expansion joint, a corrugated heat exchange pipe, a diaphragm and a metal hose and the like, wherein the metal corrugated pipe is mainly applied to the functions of compensating the thermal deformation of a pipeline, damping, absorbing the settlement deformation of the pipeline and the like, is widely applied to the industries of petrifaction, instruments, spaceflight, chemical industry, electric power, cement, metallurgy and the like, and is made of other materials such as plastics in the fields of medium conveying, electric power threading, machine tools, household appliances and the like, and meanwhile, the corrugated pipe is applied to the bent end connecting part of oil and gas due to better.
However, the prior art has the following defects: when current bellows used in oil, gas, thereby because the damage of bellows can appear in long-term use leads to leaking, but current bellows only is provided with the warning setting when leaking, does not have specific setting of preventing leaking, and the staff has certain blank time between accepting the warning that the leakage was sent to taking measures, can lead to a large amount of leakages of oil, gas.
In order to prevent the oil or gas leakage of the existing corrugated pipe, not only the alarm device of the existing corrugated pipe is improved, but also a plugging device for preventing the leakage of the existing corrugated pipe is provided, the plugging device has a certain volume, when the plugging device is installed on the vacuum corrugated pipe, in order to be capable of plugging the vacuum corrugated pipe when the vacuum corrugated pipe leaks, the plugging structure of the plugging device can occupy the effective drift diameter of the vacuum corrugated pipe, and the drift diameter in the vacuum corrugated pipe is reduced in a normalized manner under the normal condition that the plugging device does not need to be plugged. Not only the flow velocity of the oil and gas passing through the vacuum bellows but also the flow rate of the oil and gas passing through the vacuum bellows are affected. Meanwhile, resistance is generated to oil and gas passing through the vacuum corrugated pipe, so that the oil and gas are not smooth to pass, and the load of an oil supply end and a gas end is directly increased.
Therefore, the existing vacuum bellows has defects and needs to be improved.
Disclosure of Invention
The invention aims to provide a vacuum corrugated pipe with full diameter and leakage prevention.
The invention relates to a full-diameter and leakage-proof vacuum corrugated pipe, which is provided with a vacuum corrugated pipe base body, wherein the vacuum corrugated pipe base body comprises a vacuum corrugated pipe wall, a flow passage, a feeding hole and a discharging hole, the feeding hole is communicated with the discharging hole through the flow passage, the vacuum corrugated pipe wall is formed by a vacuum corrugated outer pipe, a vacuum corrugated inner pipe and a gap between the vacuum corrugated outer pipe and the vacuum corrugated inner pipe, the gap forms a vacuum cavity, and the vacuum corrugated pipe is characterized in that a gate valve structure capable of plugging the feeding hole is fixedly arranged near the feeding hole, the gate valve structure is provided with a gate plate and a gate plate opening and closing mechanism, a valve seat is arranged in the feeding hole, the valve seat is provided with a valve seat opening matched with the gate plate, the gate plate opening and closing mechanism is provided with a gate plate, the utility model discloses a vacuum switch, including flashboard, gasbag, chamber.
The vacuum corrugated pipe wall is composed of a vacuum corrugated outer pipe, a vacuum corrugated inner pipe and a gap between the vacuum corrugated outer pipe and the vacuum corrugated inner pipe, wherein the gap forms a vacuum cavity, and the gap between the vacuum corrugated outer pipe and the vacuum corrugated inner pipe is normally in a vacuum state, namely the vacuum cavity is formed after the gap is vacuumized.
According to the invention, a gate valve structure capable of plugging the feeding hole is fixedly installed close to the feeding hole, the gate valve structure is provided with a gate plate and a gate plate opening and closing mechanism, a valve seat is arranged in the feeding hole, the valve seat is provided with a valve seat opening matched with the gate plate, the gate plate opening and closing mechanism can lift or put down the gate plate, and the gate plate can be matched with the valve seat opening of the valve seat to seal a flow passage when put down.
The gate plate opening and closing mechanism is provided with a gate plate opening and closing cavity, the gate plate opening and closing mechanism is positioned on the outer wall of the feeding hole, the extending part of the outer wall of the feeding hole serves as the gate plate opening and closing cavity, the gate plate opening and closing mechanism is positioned on the outer wall of the feeding hole and does not occupy the space of the cavity inside the feeding hole, and the gate plate opening and closing cavity is formed by the extending part of the outer wall of the feeding hole, so that the stability of the whole structure at the feeding. If the shutter opening and closing cavity is of a separate structure and is additionally connected to the outer wall of the feed inlet, the connection is unstable, and leakage is easily generated at the connection position.
The air bag is provided with an air bag, a spring is arranged in the air bag, the outer wall of one end of the air bag penetrates through one end of the opening and closing cavity of the gate plate and is fixedly connected with the gate plate, the other end of the air bag is fixedly connected with the inner wall of the other end of the opening and closing cavity of the gate plate, the air bag is provided with an air bag opening, the air bag opening penetrates through the opening and closing cavity of the gate plate and is communicated with the vacuum cavity, one end of the spring in the air bag is contacted with the gate plate through the air bag wall, and the other end of the spring in the air bag. That is to say, normally, the gasbag passes through gasbag opening and vacuum cavity intercommunication and keeps also being in vacuum state in the gasbag, and when gasbag vacuum state, the gasbag atrophies and oppresses the spring shrink, and the one end of gasbag is lifted rather than the flashboard of fixed connection and is let the flashboard be located the flashboard and play the closed intracavity to keep the runner unobstructed. At the moment, the flashboard is positioned in the flashboard opening and closing cavity, and the flashboard opening and closing cavity does not occupy space in the runner, so that the drift diameter of the runner is ensured. When the wall of the vacuum corrugated pipe is damaged, the pressure in the vacuum cavity can be rapidly increased, the air bag communicated with the vacuum cavity through the air bag opening can also rapidly recover the pressure, meanwhile, the air bag can extend, the spring in the air bag starts to reset, the other end of the spring pushes the flashboard to lift up and close the inner wall at the other end of the cavity, one end of the spring pushes the flashboard to rapidly put down the flashboard, and the flashboard is matched with the valve seat opening of the valve seat to seal the flow channel after being put.
The vacuum corrugated outer pipe can be welded with a pressure sensor, and the pressure sensor is communicated with a leakage alarm through a line. Therefore, when leakage occurs, the flow passage can be blocked to prevent leakage at the first time, and an alarm can be sent to inform maintenance personnel.
The opening of the feed inlet and the opening of the discharge outlet are both provided with external connecting steps with the drift diameter larger than that of the flow channel. Therefore, when the external pipeline is connected with the full-diameter and anti-leakage vacuum corrugated pipe, the external connecting step with the diameter larger than that of the flow passage can be used for transitional connection, so that the connected flow passage is ensured to have the full-diameter effect.
Compared with the prior similar products, the full-diameter and leakage-proof vacuum corrugated pipe not only can block the flow passage to prevent leakage when the vacuum corrugated pipe is damaged, but also can ensure the full diameter of the flow passage in the normal state of the pipeline.
The present invention will be further described with reference to the following examples, but the present invention is not limited to the examples.
Drawings
FIG. 1 is a schematic diagram of a vacuum bellows with a full diameter and leakage-proof structure according to an embodiment.
Fig. 2 is a schematic structural diagram of a flow channel closed after a full-diameter and leak-proof vacuum bellows is broken in the embodiment.
Detailed Description
As shown in fig. 1-2, the full-bore and leak-proof vacuum bellows described in this embodiment includes a vacuum bellows base body, the vacuum bellows base body includes a vacuum bellows wall, a flow passage 1, a feed inlet 2 and a discharge outlet 3, the feed inlet 2 is communicated with the discharge outlet 3 through the flow passage, the vacuum bellows wall is composed of a vacuum bellows outer tube 4, a vacuum bellows inner tube 5 and a gap between the vacuum bellows outer tube and the vacuum bellows inner tube, the gap constitutes a vacuum chamber 6, and is characterized in that a gate valve structure capable of plugging the feed inlet is fixedly installed near the feed inlet, the gate valve structure includes a gate plate 7 and a gate plate opening and closing mechanism, a valve seat 8 is disposed in the feed inlet, the valve seat 8 includes a valve seat opening 9 matched with the gate plate 7, the gate plate opening and closing mechanism includes a gate plate opening and closing chamber 10, and the gate, the feed inlet outer wall extension acts as the flashboard and rises and close the chamber, the flashboard rises and closes intracavity and has inside gasbag 12 that is equipped with spring 11, the outer wall of gasbag one end passes flashboard and rises and close chamber one end and flashboard fixed connection, the other end of gasbag rises and closes the inner wall fixed connection of the chamber other end with the flashboard, the gasbag has gasbag opening 13, gasbag opening 13 passes the flashboard and rises and close chamber and vacuum cavity 6 intercommunication, spring one end in the gasbag passes through gasbag wall and flashboard contact, the spring other end in the gasbag rises and closes the inner wall contact of the chamber other end through gasbag wall and flashboard.
In this embodiment, the vacuum corrugated outer pipe is welded with a pressure sensor 14, and the pressure sensor is communicated with the leakage alarm through a line.
In this embodiment, the opening of the feed inlet and the opening of the discharge outlet both have an external connecting step 15 with a drift diameter larger than that of the flow channel.
Claims (3)
1. A full-diameter and leakage-proof vacuum corrugated pipe is provided with a vacuum corrugated pipe base body, wherein the vacuum corrugated pipe base body comprises a vacuum corrugated pipe wall, a flow passage, a feed inlet and a discharge outlet, the feed inlet is communicated with the discharge outlet through the flow passage, the vacuum corrugated pipe wall is composed of a vacuum corrugated outer pipe, a vacuum corrugated inner pipe and a gap between the vacuum corrugated outer pipe and the vacuum corrugated inner pipe, the gap forms a vacuum cavity, and the vacuum corrugated pipe is characterized in that a gate valve structure capable of plugging the feed inlet is fixedly arranged near the feed inlet, the gate valve structure is provided with a gate plate and a gate plate opening and closing mechanism, a valve seat is arranged in the feed inlet, the valve seat is provided with a valve seat opening matched with the gate plate, the gate plate opening and closing mechanism is provided with a gate plate opening and closing, the utility model discloses a vacuum switch, including flashboard, gasbag, chamber.
2. A full-diameter and leak-proof vacuum bellows as claimed in claim 1, wherein a pressure sensor is welded on the outer tube of the vacuum bellows, and the pressure sensor is connected to a leak alarm through a line.
3. A full-bore and leak-proof vacuum bellows as claimed in claim 1 or 2, wherein the opening of the inlet port and the opening of the outlet port each have an external connection step having a larger bore than the flow passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911395557.9A CN110906091B (en) | 2019-12-30 | 2019-12-30 | Full-drift-diameter and leak-proof vacuum bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911395557.9A CN110906091B (en) | 2019-12-30 | 2019-12-30 | Full-drift-diameter and leak-proof vacuum bellows |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110906091A true CN110906091A (en) | 2020-03-24 |
| CN110906091B CN110906091B (en) | 2024-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911395557.9A Active CN110906091B (en) | 2019-12-30 | 2019-12-30 | Full-drift-diameter and leak-proof vacuum bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110906091B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911730A (en) * | 2020-08-13 | 2020-11-10 | 苗蓓 | Self-sealing connecting kit for stainless steel clamping-pressing type pipe fitting |
| CN113639131A (en) * | 2021-10-14 | 2021-11-12 | 尊领科技集团有限公司 | Double-flow outward pressure type compensator and implementation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5767391A (en) * | 1996-11-25 | 1998-06-16 | Taiwan Semiconductor Manufacturing Company, Ltd | Leakage detect tool for vacuum bellows |
| US20020089177A1 (en) * | 1999-10-13 | 2002-07-11 | Bonn John W. | Controlled leak cryogenic bayonet pipe spool and system |
| CN202791157U (en) * | 2012-07-11 | 2013-03-13 | 青岛绿科汽车燃气开发有限公司 | Pipeline attemperator |
| CN208816896U (en) * | 2018-06-04 | 2019-05-03 | 湖北统塑管业有限公司 | A kind of vacuum anti-leak bellows |
| CN109780357A (en) * | 2019-01-23 | 2019-05-21 | 洛阳双瑞特种装备有限公司 | A kind of External Pressure Type expansion joint with device for detecting axial displacement |
| CN211423678U (en) * | 2019-12-30 | 2020-09-04 | 四川九天真空科技股份有限公司 | Full-diameter and anti-leakage vacuum corrugated pipe |
-
2019
- 2019-12-30 CN CN201911395557.9A patent/CN110906091B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5767391A (en) * | 1996-11-25 | 1998-06-16 | Taiwan Semiconductor Manufacturing Company, Ltd | Leakage detect tool for vacuum bellows |
| US20020089177A1 (en) * | 1999-10-13 | 2002-07-11 | Bonn John W. | Controlled leak cryogenic bayonet pipe spool and system |
| CN202791157U (en) * | 2012-07-11 | 2013-03-13 | 青岛绿科汽车燃气开发有限公司 | Pipeline attemperator |
| CN208816896U (en) * | 2018-06-04 | 2019-05-03 | 湖北统塑管业有限公司 | A kind of vacuum anti-leak bellows |
| CN109780357A (en) * | 2019-01-23 | 2019-05-21 | 洛阳双瑞特种装备有限公司 | A kind of External Pressure Type expansion joint with device for detecting axial displacement |
| CN211423678U (en) * | 2019-12-30 | 2020-09-04 | 四川九天真空科技股份有限公司 | Full-diameter and anti-leakage vacuum corrugated pipe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911730A (en) * | 2020-08-13 | 2020-11-10 | 苗蓓 | Self-sealing connecting kit for stainless steel clamping-pressing type pipe fitting |
| CN113639131A (en) * | 2021-10-14 | 2021-11-12 | 尊领科技集团有限公司 | Double-flow outward pressure type compensator and implementation method thereof |
| CN113639131B (en) * | 2021-10-14 | 2021-12-21 | 尊领科技集团有限公司 | Double-flow outward pressure type compensator and implementation method thereof |
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| Publication number | Publication date |
|---|---|
| CN110906091B (en) | 2024-06-25 |
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Country or region after: China Address after: 637200 Duofu Industrial Park, Xichong County, Nanchong City, Sichuan Province Applicant after: SICHUAN JIUTIAN VACUUM TECHNOLOGY CO.,LTD. Address before: 637200 Duofu Industrial Park, Xichong County, Nanchong City, Sichuan Province Applicant before: SICHUAN JIUTIAN VACUUM TECHNOLOGY Co.,Ltd. Country or region before: China |
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