CN201382232Y - Tension bar dual-layer corrugated compensator with detection connectors - Google Patents
Tension bar dual-layer corrugated compensator with detection connectors Download PDFInfo
- Publication number
- CN201382232Y CN201382232Y CN200920106688U CN200920106688U CN201382232Y CN 201382232 Y CN201382232 Y CN 201382232Y CN 200920106688 U CN200920106688 U CN 200920106688U CN 200920106688 U CN200920106688 U CN 200920106688U CN 201382232 Y CN201382232 Y CN 201382232Y
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- layer corrugated
- double
- interface
- bellows
- dual
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Abstract
A tension bar dual-layer corrugated compensator with detection connectors belongs to the field of corrugated compensation devices for pipelines and resolves the problem of monitoring and detecting leakage of dual-layer corrugated pipes. The tension bar dual-layer corrugated compensator is characterized in that straight pipe sections at two ends of an outer-layer corrugated pipe (3) of each dual-layer corrugated pipe are respectively equipped with holes (1), and the detection connectors (2) are in overhung welding on the holes (1), and the connectors are simultaneously welded with retainer rings (4) of reinforcing rings (5) on end sides. When in application, the two detection connectors (2) on each outer-layer corrugated pipe (3) are respectively used as an inlet and an outlet for detecting gas, a pressure gauge and a pressure alarm are arranged in a pipe connecting line, thereby forming a detection system. The detection system can monitor at any time and discover leakage of the outer-layer corrugated pipes or/ and inner-layer corrugated pipes, especially leakage of inner-layer corrugated pipes in time according to pressure variation of detected gas, thereby bringing convenience for operators to take measures to reduce economic loss. The tension bar dual-layer corrugated compensator is particularly adaptable to pipelines for delivering high-temperature high-pressure fluid media in the petrochemical industry.
Description
Technical field
The utility model belongs to the ripple compensation apparatus field that pipeline is used, and relates to a kind of with the double-deck FlexbleJoint of the pull rod type that detects interface.
Background technique
In the prior art, in petroleum chemical industry, carry high temperature, high-pressure fluid medium, particularly in the pipeline of liquid medium, extensively adopt the double-ply bellows compensator of pull rod type band stiffening ring, hereinafter to be referred as the double-deck FlexbleJoint of pull rod type, in order to the lateral displacement and the angular displacement of compensated bend pipeline section, its advantage is, rigidity is little, and flexible big, displacement amount is big, compensation ability is strong, deficiency is, skin or/and internal layer, the especially leakage of internal layer bellows be difficult in time being found, in case double-ply bellows leaks, mean that then compensator intensity die-offs, be easy to break, can not in time change as no spare part, can have a strong impact on production, not monitor detection method and still there is effective leakage at present to double-ply bellows.
Summary of the invention
The technical problem that solves:
For the double-ply bellows in the compensator installs the detection interface additional, and by taking over circuit formation detection system, feed the level pressure detected gas to detection system, can detect the leakage of double-ply bellows, can overcome the deficiencies in the prior art, can monitor and detect the skin of double-ply bellows at any time, in time find to leak or/and whether internal layer leaks, carry out to change and prepare, reduce economic loss.
The technological scheme that adopts:
Band detects the double-deck FlexbleJoint of pull rod type of interface, double-ply bellows and pull bar with connecting tube, band stiffening ring, it is characterized in that: perforate respectively on the two ends straight length of the outer bellows of each double-ply bellows, and the overhanging formula of welding detects interface on the hole, detects interface and passes on the outer wall that is welded in connecting tube in order to fix the ring washer of distolateral stiffening ring.
Beneficial effect:
Detection interface on the one end straight length of each outer bellows is as the detected gas import, detection interface on the other end straight length exports as detected gas, detected gas is the nitrogen of pressure 0.5～0.6MPa, nitrogen is entered by the detected gas import and behind the interlayer gap of outer, internal layer bellows, gas outlet is connected to monitoring chamber after testing, take on the circuit, pressure gauge and pressure alarm are housed, constitute detection system; In the supervision, nitrogen feeds detection system, under the normal condition, the pressure gauge indication is normal, pressure alarm is failure to actuate, if outer bellows leaks, then pressure descends, seriously leak to the low alarm setting value that makes pressure drop to pressure alarm, then pressure alarm is reported to the police at once, if the internal layer bellows leaks, then pressure rises, seriously leak to the high alarm setting value that makes pressure rise to pressure alarm, then pressure alarm is reported to the police at once; Therefore, can easily monitor at any time and in time find skin or/and internal layer that especially the leakage of internal layer bellows is in time adopted an effective measure, and prepares the compensator spare part, changing early, or regulate and produce, reduce economic loss; Simple in structure, it is convenient, effective to implement, and is particularly useful in the petroleum chemical industry, carries the pipeline of high temperature, high-pressure fluid medium.
Description of drawings
Fig. 1, main assembly structural representation;
Fig. 2, press the amplification I figure shown in Fig. 1;
Fig. 3, press the A shown in Fig. 2 to view;
The detected gas import at Fig. 4, each bellows two ends, exporter's bitmap;
Monitoring system schematic representation in Fig. 5, the application;
Embodiment
Further explanation in detail in conjunction with the accompanying drawings;
Shown in the figure: double-head arrow is shown the mobile direction of flowing medium, and single arrow is shown the detected gas flow direction; The 6-stiffening ring, 7-interface connecting tube, connecting tube among the 8-, 9-guide shell, 10-pull bar, 16-detected gas inlet valve, 17-detected gas outlet valve;
Shown in Fig. 1～3, first double-ply bellows 11 and second double-ply bellows 12 that have band stiffening ring 6 in the double-deck FlexbleJoint of pull rod type, perforate 1 respectively on the two ends straight length of the outer bellows 3 of each double-ply bellows, the overhanging formula of welding detects interface 2 on hole 1, detect interface 2 and also weld together in order to the ring washer 4 of fixing distolateral stiffening ring 5 simultaneously with on the outer wall that is welded in connecting tube, in order to improving the join strength that detects interface 2.
As shown in Figure 4, respectively there is one to detect interface 2 on the two ends straight length of the outer bellows 3 of each double-ply bellows, detection interface 2 on one end is as the detected gas import, detection interface 2 on the other end is as the detected gas outlet, and the detected gas import is 180 degree mutually with the nozzle orientation that outlet directly makes progress at double-ply bellows.
As shown in Figure 5, detection system is as follows in the application, monitoring gas is the nitrogen of pressure 0.5～0.6MPa, nitrogen is entered by the detected gas import and behind the interlayer gap of outer, internal layer bellows, gas outlet is connected to monitoring chamber after testing, takes on the circuit 13 pressure gauge 14 and pressure alarm 15 are housed; In the supervision, nitrogen feeds detection system, under the normal condition, pressure gauge 14 indications are normal, and pressure alarm 15 is failure to actuate, if outer bellows 3 leaks, then pressure descends, and seriously leaks to the low alarm setting value that makes pressure drop to pressure alarm 15, and then pressure alarm 15 is reported to the police at once; In the petroleum chemical industry, the high-pressure fluid medium that pipeline is carried, its pressure is all more than 1.0MPa, if the internal layer bellows leaks, then pressure gauge 14 indicated pressures rise, and seriously leak to the high alarm setting value that makes pressure rise to pressure alarm 15, and then pressure alarm 15 is reported to the police at once.Can each double-ply bellows constitute an independently detection system, also can two double-ply bellowss being connected in parallel constitutes a detection system.Certainly, when outer and internal layer bellows was revealed simultaneously, pressure alarm 15 also can be reported to the police according to the alarm pressure limit value at any time.
Claims (3)
1, band detects the double-deck FlexbleJoint of pull rod type of interface, double-ply bellows and pull bar with connecting tube, band stiffening ring, it is characterized in that: perforate respectively on the two ends straight length of the outer bellows of each double-ply bellows, and the overhanging formula of welding detects interface on the hole, detects interface and passes on the outer wall that is welded in connecting tube in order to fix the back-up ring of distolateral stiffening ring.
2, the double-deck FlexbleJoint of pull rod type of band detection interface according to claim 1 is characterized in that: detect interface (2) and also weld together in order to the back-up ring (4) of fixing distolateral stiffening ring (5) simultaneously with on the outer wall that is welded in connecting tube.
3, band according to claim 1 and 2 detects the double-deck FlexbleJoint of pull rod type of interface, it is characterized in that: respectively have one to detect interface (2) on the two ends straight length of the outer bellows (3) of each double-ply bellows, two are detected interfaces (2) respectively as the import and the outlet of detected gas, and are 180 degree mutually at the nozzle orientation that double-ply bellows directly makes progress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106688U CN201382232Y (en) | 2009-04-03 | 2009-04-03 | Tension bar dual-layer corrugated compensator with detection connectors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106688U CN201382232Y (en) | 2009-04-03 | 2009-04-03 | Tension bar dual-layer corrugated compensator with detection connectors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201382232Y true CN201382232Y (en) | 2010-01-13 |
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ID=41525706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920106688U Expired - Fee Related CN201382232Y (en) | 2009-04-03 | 2009-04-03 | Tension bar dual-layer corrugated compensator with detection connectors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201382232Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734588A (en) * | 2012-06-07 | 2012-10-17 | 南通曙光波纹管制造有限公司 | Double-layer pressure-balance expansion joint with monitoring device for ethylene unit |
| CN104266028A (en) * | 2014-09-24 | 2015-01-07 | 南京晨光汉森柔性管有限公司 | Instability preventing type expansion joint of metal corrugated pipe |
| CN105371045A (en) * | 2015-11-18 | 2016-03-02 | 无锡市三六九钢管有限公司 | Natural gas pipeline with warning pneumatic valve |
| CN114593302A (en) * | 2022-03-29 | 2022-06-07 | 诸暨市沣泽动力机械有限公司 | Nonmetal expansion joint capable of realizing double-layer drainage |
-
2009
- 2009-04-03 CN CN200920106688U patent/CN201382232Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734588A (en) * | 2012-06-07 | 2012-10-17 | 南通曙光波纹管制造有限公司 | Double-layer pressure-balance expansion joint with monitoring device for ethylene unit |
| CN104266028A (en) * | 2014-09-24 | 2015-01-07 | 南京晨光汉森柔性管有限公司 | Instability preventing type expansion joint of metal corrugated pipe |
| CN105371045A (en) * | 2015-11-18 | 2016-03-02 | 无锡市三六九钢管有限公司 | Natural gas pipeline with warning pneumatic valve |
| CN114593302A (en) * | 2022-03-29 | 2022-06-07 | 诸暨市沣泽动力机械有限公司 | Nonmetal expansion joint capable of realizing double-layer drainage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20150403 |
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| EXPY | Termination of patent right or utility model |