CN109186536A - A kind of device and method for monitoring pipeline elevator sunpender tilt angle on-line - Google Patents
A kind of device and method for monitoring pipeline elevator sunpender tilt angle on-line Download PDFInfo
- Publication number
- CN109186536A CN109186536A CN201811319802.3A CN201811319802A CN109186536A CN 109186536 A CN109186536 A CN 109186536A CN 201811319802 A CN201811319802 A CN 201811319802A CN 109186536 A CN109186536 A CN 109186536A
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- steel ball
- support ring
- hanger
- cylinder
- lifting rope
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 230000005484 gravity Effects 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims description 5
- 241001442234 Cosa Species 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 abstract description 4
- 239000000725 suspension Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
-
- 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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a kind of device and methods for monitoring pipeline elevator sunpender tilt angle on-line, which includes cylinder, support ring and steel ball etc.；Wherein, cylinder is axially arranged in an axially parallel mode with sunpender, and cylinder and sunpender fit closely together, support ring is arranged in cylinder, its circumferential inner wall with cylinder links together, steel ball is sleeved in support ring, and is connected by lifting rope with the data processor that top outside cylinder is arranged in, and data processor is used for the pulling force of real-time reception lifting rope.This method comprises: tilt angle a is also tilted therewith between cylinder, support ring and steel ball at this time and angle is identical, and steel ball is by three power: the pulling force F of gravity G, lifting rope when sunpender run-off the straightIt drawsWith the support force F of support ringBranch, according to the forst law of motion: the resultant force of these three power is zero；And then sunpender tilt angle is calculated.It is the configuration of the present invention is simple, easy to operate, only by the force analysis of steel ball, sunpender tilt angle can be obtained in real time.
Description
Technical Field
The invention belongs to the technical field of thermal power generation, and particularly relates to a device and a method for monitoring an inclination angle of a hanger rod of a pipeline hanger on line.
Background
There are various large diameter pipelines in thermal power plants, including steam pipelines, water pipelines. The support hanger is used as an important accessory of the pipeline and is used for bearing the weight of the pipeline, so that the self-weight stress of the pipeline is in an allowable range; the rigidity of the pipe is increased, and excessive deflection and vibration are avoided; the size and the direction of the thermal displacement of the pipe system are controlled, and the safe operation of the pipeline and the equipment connected with the pipeline is ensured. Therefore, the normal service of the support and hanger has important significance for the safe and stable operation of the large-diameter pipeline of the thermal power plant.
In the cold and hot state change, the large-diameter pipeline can move, so that the hanger of the large-diameter pipeline deviates. The pipeline can bear larger additional bending stress due to an overlarge inclination angle, so that the stable and safe operation of the pipeline is related to the inclination condition of the hanger rod, and relevant standards and specifications are provided for the inspection time and the qualified standards of the inclination angle of the hanger rod. According to the part regulation of DL/T616-2006 maintenance adjustment guide rule for steam-water pipelines and supporting and hanging frames of thermal power plant 3.8.6: when the swing angle of the rigid hanger exceeds 3 degrees and the swing angle of the elastic hanger exceeds 4 degrees under various working conditions by the pull rod of the hanger, the reason should be found out and processed. Therefore, the method is particularly important for evaluating the safety state of the pipeline and the hanger system thereof by accurately measuring the inclination angle of the hanger rod.
At present, the dip angle measurement of a hanger rod of a pipeline hanger is mainly carried out by using methods such as a total station, a theodolite method, a macroscopic estimation method and the like, but the defects of large error, inaccurate measurement, complex measurement process and the like exist due to more pipeline hangers, pipeline shielding and the like; in addition, the measurement means can only be carried out regularly, and real-time monitoring cannot be achieved.
Disclosure of Invention
The invention aims to provide a device and a method for monitoring the inclination angle of a hanger rod of a pipeline hanger on line.
The invention is realized by adopting the following technical scheme:
a device for monitoring the inclination angle of a hanger rod of a pipeline hanger on line comprises a cylinder, a support ring, a steel ball and a data processor; wherein,
the cylinder body is axially arranged in parallel with the suspension rod in an axial direction, the cylinder body is tightly attached to the suspension rod, the support ring is arranged in the cylinder body, the circumferential direction of the support ring is connected with the inner wall of the cylinder body, the steel ball is sleeved in the support ring and is connected with a data processor arranged at the outer top of the cylinder body through a suspension rope, and the data processor is used for receiving the tension of the suspension rope in real time.
The invention is further improved in that the barrel and the hanger rod are welded together.
The invention has the further improvement that a gap is reserved between the steel ball and the support ring, and the gap is smaller than 1 mm.
The invention is further improved in that the steel ball is a metal ball with uniform mass, and the gravity center of the steel ball is the same point as the center of the steel ball.
The invention has the further improvement that the central connecting line of the lifting rope and the steel ball and the lifting rope are on the same straight line.
The invention is further improved in that the barrel is a rectangular barrel with a hollow cavity, and the circumferential direction of the support ring is uniformly connected with the inner wall of the barrel.
A method for on-line monitoring of the inclination angle of a hanger rod of a pipeline hanger is based on the device for on-line monitoring of the inclination angle of the hanger rod of the pipeline hanger, and comprises the following steps:
when the jib takes place to incline, inclination is a, also inclines thereupon and the angle is the same between barrel, support ring and steel ball this moment, and the steel ball receives three power: gravity G, pulling force F of lifting ropePulling deviceAnd supporting force F of the supporting ringBranch standFrom newton's first law: the total of these three forces is zero;
the relationship between the above three forces is shown as follows:
G·cosa'＝Fpulling device，G·cos(90°-a')
The boom inclination angle a ═ a' ═ acrcos (F)Pulling device/G)
Wherein a' is an included angle between the lifting rope and the vertical direction.
The invention has the following beneficial technical effects:
the device for monitoring the inclination angle of the hanger rod of the pipeline hanger on line provided by the invention comprises a cylinder, a support ring, a steel ball and a data processor, has a simple structure, is convenient to operate, and can obtain the inclination angle of the hanger rod in real time only through the stress analysis of the steel ball.
According to the method for measuring the inclination angle of the hanger rod of the pipeline hanger, the characteristic that the inclination angle of the hanger rod and the included angle between the lifting rope and the vertical direction are arranged in a diagonal manner is utilized, the included angle between the lifting rope and the vertical direction is obtained through stress analysis of the steel ball, and then the inclination angle of the hanger rod is obtained.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a state diagram of the present invention in operation.
FIG. 4 is a force analysis diagram of the steel ball during operation of the present invention.
Description of reference numerals: 1-cylinder, 2-support ring, 3-steel ball, 4-data processor, 5-hoisting ring, 6-hoisting rope.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the device for monitoring the inclination angle of the hanger rod of the pipeline hanger on line provided by the invention comprises a cylinder 1, a support ring 2, a steel ball 3 and a data processor 4; wherein, barrel 1 axial and 5 axial parallel arrangement of jib, and barrel 1 and 5 inseparable welded connection of jib are in the same place, and support ring 2 sets up in barrel 1, and its circumference links together with the inner wall of barrel 1, and steel ball 3 suit is in support ring 2 to link to each other with the data processor 4 that sets up at barrel 1 outer top through lifting rope 6, data processor 4 is used for receiving the pulling force of lifting rope 6 in real time.
Wherein, a gap is reserved between the steel ball 3 and the support ring 2, and the gap is smaller than 1 mm. The steel ball 3 is a metal ball with uniform mass, and the gravity center of the steel ball is the same point as the center of the steel ball. The central connecting line of the lifting rope 6 and the steel ball 3 is on the same straight line with the lifting rope 6. The barrel 1 is a rectangular barrel with a hollow cavity, and the circumferential direction of the support ring 2 is uniformly connected with the inner wall of the barrel 1.
The invention provides a method for monitoring the inclination angle of a hanger rod of a pipeline hanger on line, which comprises the following steps: when the suspension rod 5 inclines, the inclination angle is a, and the barrel 1 and the support are described in the inventionThe supporting ring 2 and the steel ball 3 are inclined and have the same angle, and the steel ball 3 is subjected to three forces: gravity G, pulling force F of lifting ropePulling deviceAnd supporting force F of the support ring 2Branch standAs shown in fig. 4. According to Newton's first law (the isolated particles are still or do uniform linear motion, the resultant force is zero): the total of these three forces is zero. The relationship between the above three forces is shown as follows:
G·cosa'＝Fpulling device，G·cos(90°-a')
The boom inclination angle a ═ a' ═ acrcos (F)Pulling device/G)
Wherein a' is an included angle between the lifting rope and the vertical direction.
The data processor functions as follows: receiving the pulling force F of the lifting rope in real timePulling deviceFurther using the above formula, the pulling force FPulling deviceAnd calculating with the gravity G of the known steel ball to obtain a boom inclination angle a, and transmitting the boom inclination angle a to a real-time detection system of a remote control room.
Claims (7)
1. A device for monitoring the inclination angle of a hanger rod of a pipeline hanger on line is characterized by comprising a cylinder body (1), a support ring (2), a steel ball (3) and a data processor (4); wherein,
barrel (1) axial and jib (5) axial parallel arrangement, and barrel (1) and jib (5) close fit be in the same place, support ring (2) set up in barrel (1), its circumference links together with the inner wall of barrel (1), steel ball (3) suit is in support ring (2), and link to each other through lifting rope (6) and data processor (4) that set up at barrel (1) top outside, data processor (4) are used for receiving the pulling force of lifting rope (6) in real time.
2. The device for on-line monitoring the inclination angle of the hanger rod of the pipeline hanger as claimed in claim 1, wherein the barrel (1) and the hanger rod (5) are welded together.
3. The device for on-line monitoring the inclination angle of the hanger rod of the pipeline hanger as claimed in claim 1, wherein a gap is left between the steel ball (3) and the support ring (2), and the gap is less than 1 mm.
4. The device for on-line monitoring of the inclination angle of the hanger rod of the pipeline hanger as claimed in claim 1, wherein the steel ball (3) is a metal ball with uniform mass, and the center of gravity of the metal ball is the same point as the center of the metal ball.
5. The device for on-line monitoring of the inclination angle of the hanger rod of the pipeline hanger as claimed in claim 1, wherein the connecting line of the central connecting line of the lifting rope (6) and the steel ball (3) and the lifting rope (6) are on the same straight line.
6. The device for on-line monitoring the inclination angle of the hanger rod of the pipeline hanger as claimed in claim 1, wherein the cylinder (1) is a rectangular cylinder with a hollow cavity, and the support ring (2) is uniformly connected with the inner wall of the cylinder (1) in the circumferential direction.
7. A method for on-line monitoring of a tilt angle of a boom of a pipeline hanger, which is based on the device of claim 1, comprising:
when jib (5) take place to incline, inclination is a, also incline thereupon and the angle is the same between barrel (1), support ring (2) and steel ball (3) this moment, and steel ball (3) receive three power: gravity G, pulling force F of lifting ropePulling deviceAnd the supporting force F of the supporting ring (2)Branch standFrom newton's first law: the total of these three forces is zero;
the relationship between the above three forces is shown as follows:
G·cosa'＝Fpulling device，G·cos(90°-a')
The boom inclination angle a ═ a' ═ acrcos (F)Pulling device/G)
Wherein a' is an included angle between the lifting rope and the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811319802.3A CN109186536A (en) | 2018-11-07 | 2018-11-07 | A kind of device and method for monitoring pipeline elevator sunpender tilt angle on-line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811319802.3A CN109186536A (en) | 2018-11-07 | 2018-11-07 | A kind of device and method for monitoring pipeline elevator sunpender tilt angle on-line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109186536A true CN109186536A (en) | 2019-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811319802.3A Pending CN109186536A (en) | 2018-11-07 | 2018-11-07 | A kind of device and method for monitoring pipeline elevator sunpender tilt angle on-line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109186536A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201022641A (en) * | 2008-12-10 | 2010-06-16 | Inst Of Transportation Ministry Of Transp And Comm | Dual mass sensing device for measuring inclination and acceleration |
| CN103743378A (en) * | 2013-12-27 | 2014-04-23 | 北京自动化控制设备研究所 | Gesture detection system of pipeline detector |
| CN106643655A (en) * | 2017-03-06 | 2017-05-10 | 沈阳建筑大学 | Gravity type fiber grating tilt sensor |
| CN107121052A (en) * | 2017-06-23 | 2017-09-01 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of measurement apparatus of suspension bracket boom angle |
| CN108398120A (en) * | 2018-05-30 | 2018-08-14 | 广东电网有限责任公司 | Shaft tower angle monitor device and system |
-
2018
- 2018-11-07 CN CN201811319802.3A patent/CN109186536A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201022641A (en) * | 2008-12-10 | 2010-06-16 | Inst Of Transportation Ministry Of Transp And Comm | Dual mass sensing device for measuring inclination and acceleration |
| CN103743378A (en) * | 2013-12-27 | 2014-04-23 | 北京自动化控制设备研究所 | Gesture detection system of pipeline detector |
| CN106643655A (en) * | 2017-03-06 | 2017-05-10 | 沈阳建筑大学 | Gravity type fiber grating tilt sensor |
| CN107121052A (en) * | 2017-06-23 | 2017-09-01 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of measurement apparatus of suspension bracket boom angle |
| CN108398120A (en) * | 2018-05-30 | 2018-08-14 | 广东电网有限责任公司 | Shaft tower angle monitor device and system |
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Application publication date: 20190111 |
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| RJ01 | Rejection of invention patent application after publication |