CN204313990U - Pipe flange stress monitoring system - Google Patents
Pipe flange stress monitoring system Download PDFInfo
- Publication number
- CN204313990U CN204313990U CN201420726007.7U CN201420726007U CN204313990U CN 204313990 U CN204313990 U CN 204313990U CN 201420726007 U CN201420726007 U CN 201420726007U CN 204313990 U CN204313990 U CN 204313990U
- Authority
- CN
- China
- Prior art keywords
- flange
- pipeline
- stress
- monitoring system
- measured
- 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.)
- Expired - Fee Related
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of pipe flange stress monitoring system, it comprises left pipeline, right pipeline, and connects the flange of left pipeline and right pipeline, and described flange adopts pad to seal, and left pipeline, right pipeline, flange form flange cavity to be measured; Left pipeline is connected with pump by valve, and right pipeline welds with blind plate; Temperature sensor, pressure transducer is provided with in flange cavity to be measured; Described system also comprises stress test mechanism, and described stress test mechanism comprises foil gauge, and foil gauge is connected with strainmeter and computing machine by winding displacement.The utility model is applied to industrial flange, the distribution of the outer wall stress of energy Real-Time Monitoring flange; And stress determination is accurate, all has stronger directive significance to scientific research and engineering.
Description
Technical field
The utility model relates to a set of flange test macro, is specifically related to a kind of pipe flange stress monitoring system.
Background technology
Flange joint is connected mode conventional in petrochemical equipment, because it has the advantage being easy to remove and install, in the pressure vessel being widely used in the industries such as petrochemical industry, nuclear power, metallurgy, pharmacy and pipeline.Along with the contradiction of economic development and energy supply, oil refining and Chemical Engineering Technology develop rapidly, and pipe flange is generally applied in various refinery device.In production, construction, the changes such as flange may deflect, warpage, creep, Crack Extension, flange each several part STRESS VARIATION is complicated; Flange leakage is the one of the main reasons that major accident occurs in the enterprises such as petrochemical complex.Therefore, we are necessary that designing a kind of pipe flange stress monitoring system carries out monitoring analysis, to ensure the security that pipeline connects to stress complicated on flange.
Utility model content
The purpose of this utility model is to provide a kind of pipe flange stress monitoring system, and described test macro is applied to industrial flange, the distribution of the outer wall stress of Real-Time Monitoring flange, can accurate measurements flange stress, ensures to produce, the carrying out smoothly of construction.
The utility model is achieved in that a kind of pipe flange stress monitoring system, it comprises left pipeline, right pipeline, and connecting the flange of left pipeline and right pipeline, described flange adopts pad to seal, and left pipeline, right pipeline, flange form flange cavity to be measured;
Described left pipeline is connected with pump by valve, and described right pipeline welds with blind plate; Temperature sensor, pressure transducer is provided with in described flange cavity to be measured;
Described system also comprises stress test mechanism, and described stress test mechanism comprises foil gauge, and foil gauge is connected with strainmeter and computing machine by winding displacement.
Described foil gauge is evenly distributed on left pipeline cylindrical section, right pipeline cylindrical section, flange cone cervical part of esophagus and ring flange outer wall.
In this pipe flange stress monitoring system, the left end of flange cavity to be measured is provided with a pump, the export pipeline of pump has a valve, export pipeline is directly connected with left pipeline, with pump by medium transport in flange cavity to be measured, and pressure transducer and temperature sensor being set in flange cavity to be measured, the temperature of medium in this temperature sensor monitors flange cavity to be measured, the pressure in flange cavity to be measured measured by this pressure transducer; The below of pipeline is provided with supporting bracket (bearing), is provided with vent valve above pipeline; Flange adopts bolt to connect, and seals with pad.
Described flange stress mechanism for testing mainly comprises foil gauge, strainmeter, and described foil gauge is distributed on pipeline cylindrical section, flange cone cervical part of esophagus and ring flange outer wall, and is uniformly distributed circumferentially; The change in electric of described foil gauge is sent in strainmeter and computing machine by winding displacement.
This pipe flange stress monitoring system forms primarily of pipe flange bindiny mechanism (pipe flange bindiny mechanism is made up of pump, pipeline, flange, blind plate etc.), stress test mechanism, pump manufactures hyperbaric environment in flange cavity to be measured, and temperature, pressure transducer measure temperature, the pressure of flange cavity to be measured.
The utility model utilizes pump or air compressor to provide hyperbaric environment for pipe flange bindiny mechanism, can do the test under many group pressure condition, to guarantee that test result is accurate.The utility model is applicable to liquid medium and gas medium.The utility model can accurately testing conduit cylindrical section, cone cervical part of esophagus and ring flange outer wall on stress, the stress level on the flange under Real-Time Monitoring different pressures condition, has judged whether underbead crack and Crack Extension situation.The utility model is applied to industrial flange, the distribution of the outer wall stress of energy Real-Time Monitoring flange; And stress determination is accurate, all has stronger directive significance to scientific research and engineering.
Accompanying drawing explanation
Fig. 1 is the structural representation of this pipe flange stress monitoring system.
Fig. 2 is the enlarged drawing of D in Fig. 1.
In figure: 1-pump, 2-valve, the left pipeline of 3-, 4-winding displacement, 5-bolt, 6-pad, 7-flange, 8-drain tap, 9-blind plate, 10-underflow opening valve, 11-bearing, 12-temperature sensor, 13-pressure transducer, 14-computing machine, 15-strainmeter, 16-foil gauge, the right pipeline of 17-.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1 and Figure 2, a kind of pipe flange stress monitoring system, it comprises left pipeline 3, right pipeline 17, and connect the flange 7 of left pipeline 3 and right pipeline 17, described flange 7 is connected by bolt 5, and adopt pad 6 to seal, left pipeline 3, right pipeline 7, flange 7 form flange cavity to be measured, and described right pipeline 17 is provided with underflow opening valve 10 and drain tap 8:
Described left pipeline 3 is connected with pump 1 by valve 2, and described right pipeline 17 is welded to connect with blind plate 9; Be provided with temperature sensor 12, pressure transducer 13 in described flange cavity to be measured, the temperature of medium in flange cavity to be measured monitored by this temperature sensor 12, and the pressure in flange cavity to be measured measured by this pressure transducer 13;
Described system also comprises stress test mechanism, described stress test mechanism comprises foil gauge 16, computing machine 14 and strainmeter 15, described foil gauge 16 as on Fig. 2 is distributed in left pipeline cylindrical section, right pipeline cylindrical section, flange cone cervical part of esophagus and ring flange outer wall, and is uniformly distributed circumferentially.Described foil gauge 26 is connected with strainmeter 15 and computing machine 14 by winding displacement 4.
In order to ensure the accuracy measured, described left pipeline 3 and right pipeline 17 have bearing 11.
Described pump 1, for being transported in flange cavity to be measured by medium (liquid or gas), forms hyperbaric environment in flange cavity to be measured, and the pipeline of flange cavity to be measured is provided with drain tap 8, for exhaust when being filled with medium in flange cavity to be measured; Temperature sensor 12 and pressure transducer 13 is provided with, temperature, the pressure of Real-Time Monitoring flange cavity medium to be measured in flange cavity to be measured.Blind plate 9 is welded on right pipeline 17 end, its good sealing effect.
As shown in Figure 2, outer wall along ring flange, cone neck, left pipeline and right pipeline evenly posts foil gauge 16, and foil gauge is uniformly distributed circumferentially, the change of foil gauge 16 power on signal is delivered to strainmeter 15 by wire (winding displacement 4), foil gauge 16 measures the stress at each position on flange, and in strainmeter 15 and computing machine 14, show in real time strain, stress and rule over time thereof.
Temperature sensor 12, pressure transducer 13, signal can be delivered in computing machine 14 and show, also can be delivered in single-chip microcomputer and show.
Work process of the present utility model:
(1) before the work of pipe flange stress monitoring system, computing machine 14 is started shooting stand-by, and strainmeter 15 is started shooting preheating, check valve 2, drain tap 8, underflow opening valve 10 on off state;
(2), during the work of pipe flange stress monitoring system, medium is filled with flange cavity to be measured by pump 1, shows flange empty cavity pressure to be measured, pressure is adjusted to testing pressure by pressure transducer 13; Show flange empty cavity temperature to be measured by means of temperature sensor 12, under this operating mode, the pressurize sufficiently long time, jointly monitored the STRESS VARIATION on flange by strainmeter 15 and computing machine 14.
Claims (4)
1. a pipe flange stress monitoring system, it comprises left pipeline, right pipeline, and connects the flange of left pipeline and right pipeline, and described flange adopts pad to seal, and left pipeline, right pipeline, flange form flange cavity to be measured, it is characterized in that:
Described left pipeline is connected with pump by valve, and described right pipeline welds with blind plate; Temperature sensor, pressure transducer is provided with in described flange cavity to be measured;
Described system also comprises stress test mechanism, and described stress test mechanism comprises foil gauge, and foil gauge is connected with strainmeter and computing machine by winding displacement; Described foil gauge is evenly distributed on left pipeline cylindrical section, right pipeline cylindrical section, flange cone cervical part of esophagus and ring flange outer wall.
2. pipe flange stress monitoring system as claimed in claim 1, is characterized in that: described foil gauge is uniformly distributed along left pipeline cylindrical section, right pipeline cylindrical section, flange cone cervical part of esophagus and ring flange outer wall circumference.
3. pipe flange stress monitoring system as claimed in claim 1, is characterized in that: described right pipeline is provided with drain tap and underflow opening valve.
4. pipe flange stress monitoring system as claimed in claim 3, is characterized in that: described right pipeline and left pipeline have bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420726007.7U CN204313990U (en) | 2014-11-28 | 2014-11-28 | Pipe flange stress monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420726007.7U CN204313990U (en) | 2014-11-28 | 2014-11-28 | Pipe flange stress monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204313990U true CN204313990U (en) | 2015-05-06 |
Family
ID=53136297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420726007.7U Expired - Fee Related CN204313990U (en) | 2014-11-28 | 2014-11-28 | Pipe flange stress monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204313990U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990654A (en) * | 2015-07-06 | 2015-10-21 | 长安大学 | Remote online large-diameter heat supply pipeline strain monitoring device and remote online large-diameter heat supply pipeline strain detection method |
| CN106442637A (en) * | 2016-08-19 | 2017-02-22 | 北京必创科技股份有限公司 | Flange crack monitoring device and method |
| CN110261030A (en) * | 2019-07-15 | 2019-09-20 | 重庆大学 | A kind of wind power generation stepped connection bolt failure diagnostic system based on wireless piezoelectric strain monitoring |
| CN113128000A (en) * | 2021-05-13 | 2021-07-16 | 江南造船(集团)有限责任公司 | Method for evaluating stress and rigidity of double-wall pipe flange |
| CN113127999A (en) * | 2021-05-13 | 2021-07-16 | 江南造船(集团)有限责任公司 | Stress and strength evaluation method of double-wall pipe flange |
| CN114993519A (en) * | 2022-06-07 | 2022-09-02 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Stress measuring method |
-
2014
- 2014-11-28 CN CN201420726007.7U patent/CN204313990U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990654A (en) * | 2015-07-06 | 2015-10-21 | 长安大学 | Remote online large-diameter heat supply pipeline strain monitoring device and remote online large-diameter heat supply pipeline strain detection method |
| CN106442637A (en) * | 2016-08-19 | 2017-02-22 | 北京必创科技股份有限公司 | Flange crack monitoring device and method |
| CN106442637B (en) * | 2016-08-19 | 2020-01-03 | 北京必创科技股份有限公司 | Flange crack monitoring device and method |
| CN110261030A (en) * | 2019-07-15 | 2019-09-20 | 重庆大学 | A kind of wind power generation stepped connection bolt failure diagnostic system based on wireless piezoelectric strain monitoring |
| CN113128000A (en) * | 2021-05-13 | 2021-07-16 | 江南造船(集团)有限责任公司 | Method for evaluating stress and rigidity of double-wall pipe flange |
| CN113127999A (en) * | 2021-05-13 | 2021-07-16 | 江南造船(集团)有限责任公司 | Stress and strength evaluation method of double-wall pipe flange |
| CN113128000B (en) * | 2021-05-13 | 2023-01-13 | 江南造船(集团)有限责任公司 | Method for evaluating stress and rigidity of double-wall pipe flange |
| CN114993519A (en) * | 2022-06-07 | 2022-09-02 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Stress measuring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204313990U (en) | Pipe flange stress monitoring system | |
| CN204314032U (en) | High-temperature pipe flange compactedness test macro | |
| CN204314001U (en) | Pipe flange stress monitoring system under Moments effect | |
| CN103954441A (en) | Device and method for detecting and testing high-temperature valve based on air heating system | |
| CN104406751A (en) | System for testing high-temperature pipeline flange under action of outer bending moment | |
| CN202442117U (en) | Leakage point detection location system for liquid pipeline | |
| CN206708736U (en) | A kind of multisensor heat supply network leaks warning monitoring system | |
| CN103247358A (en) | High-energy pipeline local leakage monitoring test bed for nuclear power station | |
| CN102944482A (en) | High-temperature high-pressure wedge-shaped expansion load presplitting grain stress corrosion test device | |
| CN108278497A (en) | Study the experimental provision of steel gas pipe underground Release and dispersion | |
| CN201417215Y (en) | On-line check meter of servo protection valve | |
| CN202092842U (en) | Sleeve monitoring device | |
| CN203824830U (en) | Auxiliary pipeline pressure test device | |
| CN204313991U (en) | High-temperature pipe flange stress monitoring system | |
| CN206787778U (en) | Valve gas cylinder test device for air tightness | |
| CN105699023A (en) | Measuring device and method suitable for carbon dioxide pipeline exhaust and leakage test | |
| CN204359610U (en) | A kind of full-automatic gas cylinder internal test method water test unit | |
| CN206555717U (en) | A kind of online detection means of pressure pipeline | |
| CN203337341U (en) | Connection tube sealing mechanism detecting exhaust manifold air tightness | |
| CN103398825A (en) | Detection mechanism for exhaust manifold pipe air tightness | |
| CN203298885U (en) | Temperature-measurement and pressure-measurement data acquisition head | |
| CN210268994U (en) | On-site gas pressure test detection device of special packer for casing gas tightness detection | |
| CN202255463U (en) | Pressure and flow test system | |
| CN206787759U (en) | Pressure sensor hydraulic pressure fatigue testing equipment | |
| CN204314007U (en) | High-temperature pipe flange stress monitoring system under Moments effect |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20161128 |