CN106895872A - Concrete pump plugging detecting system - Google Patents
Concrete pump plugging detecting system Download PDFInfo
- Publication number
- CN106895872A CN106895872A CN201710185728.XA CN201710185728A CN106895872A CN 106895872 A CN106895872 A CN 106895872A CN 201710185728 A CN201710185728 A CN 201710185728A CN 106895872 A CN106895872 A CN 106895872A
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- CN
- China
- Prior art keywords
- photoelastic
- otch
- detecting system
- body portion
- display piece
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention relates to a kind of concrete pump plugging detecting system, for the detection to Concrete Pumping Construction plugging phenomenon, including photoelastic display piece, it is characterized in that, described photoelastic display piece includes body portion 1, otch 4 is offered in body portion 1, photoelastic material layer is coated with the outer surface of body portion 1, inner surface fits with the outer surface of the conveyance conduit to be detected, multiple photoelastic display pieces are separately fixed at the different parts of conveyance conduit, described detecting system also includes light source, polarizer 5 and analyzer 6, the light that light source sends after polarizer 5 by being radiated on certain photoelastic display piece, light from this photoelastic display piece reflection after analyzer 6 by projecting.
Description
Technical field
The invention belongs to technical field of civil engineering, it is related to a kind of concrete pump plugging detecting system.
Background technology
Due to many environmental factors and human factor, concrete plugging phenomenon happens occasionally.The method for judging whether plugging
Have：Plugging typically has obvious phenomenon during Concrete Pumping Construction, from terms of pumping oil pressure, if the pressure peak of each pump stroke
Rise rapidly with the alternating of stroke, and quickly reach setting pressure, normal pumping circulation is automatically stopped, working connection overflow valve
Overflow sound is sent, plugging is indicated that.Another aspect observable conveyance conduit situation, pipeline and pump machine during normal pumping
Slight vibrations are produced, if producing strenuous vibration suddenly, although pumping operation is still being carried out, the mouth of pipe loses concrete stream
Go out, also indicate that and there occurs plugging.Delivery pipe sometimes because of plugging when the crunch spalling that produces.Judge pipe where plugging point
Section：It is believed that the pipeline vibrations exported to from pump machine at plugging are violent, there is disengagement joint, and at plugging after
Pipeline is then geo-stationary, and the position of plugging can be found according to this phenomenon；Tube wall can also be tapped with iron staff, according to sound
Sound judges the position of plugging.But this method accuracy rate is not high, and is overly dependent upon the experience of executor.Actually building site one
Denier occur plugging, workman technical staff cannot quick and precisely find plugging section position, will influence efficiency of construction and construct into
Degree, or even delay the duration, in turn result in huge economic loss.
The content of the invention
For the plugging problem during concrete pumping, it is an object of the invention to provide the with low cost, Ke Yiyong of one kind
In the detecting system for quick and precisely finding plugging fragment position.Technical scheme is as follows：
A kind of concrete pump plugging detecting system, it is for the detection to Concrete Pumping Construction plugging phenomenon including photoelastic
Display piece, it is characterised in that described photoelastic display piece includes body portion 1, otch 4 is offered in body portion 1, in matrix
The outer surface of part 1 is coated with photoelastic material layer, and inner surface fits with the outer surface of the conveyance conduit to be detected, Duo Geguang
Bullet display piece is separately fixed at the different parts of conveyance conduit, and described detecting system also includes light source, polarizer 5 and analyzer
6, the light that light source sends passes through by being radiated at after polarizer 5 on certain photoelastic display piece from the light of this photoelastic display piece reflection
Projected after analyzer 6.
Described otch is cross-cut, slit otch, elliptical incision, rectangular slits, half open form otch, triangle
Otch, circular incision, narrow rectangular slits, trapezoidal cut, inverted trapezoidal otch, rhombic.
The present invention has advantages below：
1) it is scientific and effective：Photoelastic method has been obtained for being widely applied in stress measurement, and long-term facts have proved use
STRESS VARIATION in photoelastic method reflection material is scientific and effective.The present invention is improved to existing photoelastic method, in light
Otch is opened up on bullet display sheet matrix, such that it is able to produce stress concentration phenomenon, is reflected by polarizing light irradiation to photoelastic material
The interference fringe for being formed afterwards judge the point of observation where tube coupling whether plugging.So as to reach rapid discovery, change in time, it is ensured that
The unimpeded purpose of conveying.
2) strong applicability：Without particular/special requirement, various engineering-environments are applied on the premise of effectively protection.
3) it is fast and convenient：Can only complete to judge with vision, be compared to tap the mode more rapid and convenient for judging.
4) low cost：Due to not needing accurate measurement, the reflection polariscope that the light path of this detecting system is more traditional has
Simplify, eliminate quarter-wave slide, further reduces cost, it is extremely cheap that cost is compared to photoelastic equipment, fits
Largely using in together in pumping procedure.
Brief description of the drawings
Photoelastic display piece and one meter long of pump line connection diagram of Fig. 1 with half open form otch
Fig. 2 thin portion pictures
Fig. 3 device light path principles
Photoelastic display piece top views of Fig. 4 with exemplary cut
Fig. 5 cross-cuts
Fig. 6 slit otch
Fig. 7 elliptical incisions
Fig. 8 rectangular slits
The open form otch of Fig. 9 half
Figure 10 triangular incisions
Figure 11 circular incisions
The narrow rectangular slits of Figure 12
Figure 13 trapezoidal cuts
Figure 14 inverted trapezoidal otch
Figure 15 rhombics
Specific embodiment
In fig. 1 and 2,1 is photoelastic display chip base body portion, and 2 is pump pipe body, and 3 illustrate for welding position, and 4 is to cut
Mouthful.Photoelastic display piece is made up of its body portion and elastooptic mateiral.It is good from stainless steel material or surface reflection performance
Plastics, photoelastic display chip base body portion 1 is accurately processed according to Diameter of pump tube, its lower surface is brought into close contact with pump line.
Otch shape is accurately processed according to design drawing, required otch is cut out in the photoelastic up/down perforation of display chip base body portion 1.
Its upper surface coats photoelastic material or bonding photoelastic Coatings, and standard is to fill or stick complete upper surface.So far, complete
To the processing and fabricating of photoelastic display piece.The photoelastic display piece that will be processed is welded on pump line, welding position and connection side
Formula is as depicted in figs. 1 and 2.After generation plugging phenomenon, rise because pipe pressure is rapid, photoelastic display sector-meeting becomes together with tube wall
Shape, light source 5 is beaten on photoelastic material by the polarised light that polarizer 6 is generated and is observed using analyzer 6, can form interference
Striped.Light path principle figure is as shown in Figure 3.Due to excessively need not accurately measure, more traditional anti-of the light path of this detecting system
The formula photoelastic equipment of penetrating is simplified, eliminates the slide of 1/4 λ, further reduces cost.Because polarization in practical engineering application
Angle between light and analyzer is undesirable may to cause interference fringe to be difficult to be observed, now only need to adjust the angle of light source or
The angle of person's analyzer can become apparent from interference fringe, it is easy to observe.By the interference bar between the point of observation on pipeline section
The comparing of line, you can judge tube coupling where plugging point and changed in time.
In addition, otch is only for example shown in Fig. 5-15, it is any to make photoelastic display piece that stress collection is produced in stress
The incision design of middle phenomenon meets the design requirement of this device.For example, according to calculating, slit otch is received at body portion two ends
To the stress concentration that maximum can be produced during pulling force, other form of cut or cuts can also apply in engineering, lift and example is for otch
The patent protection of form.
Claims (2)
1. a kind of concrete pump plugging detecting system, it is for the detection to Concrete Pumping Construction plugging phenomenon including photoelastic aobvious
Show piece, it is characterised in that described photoelastic display piece includes body portion (1), and otch (4) is offered in body portion (1),
The outer surface of body portion (1) is coated with photoelastic material layer, and inner surface fits with the outer surface of the conveyance conduit to be detected,
Multiple photoelastic display pieces are separately fixed at the different parts of conveyance conduit, and described detecting system also includes light source, polarizer (5)
With analyzer (6), the light that light source sends by be radiated at after polarizer (5) certain it is photoelastic display piece on, from this photoelastic display piece
The light of reflection is projected by after analyzer (6).
2. detecting system according to claim 1, it is characterised in that described otch be cross-cut, slit otch,
Elliptical incision, rectangular slits, half open form otch, triangular incision, circular incision, narrow rectangular slits, trapezoidal cut, inverted trapezoidal
Otch, rhombic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710185728.XA CN106895872A (en) | 2017-03-26 | 2017-03-26 | Concrete pump plugging detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710185728.XA CN106895872A (en) | 2017-03-26 | 2017-03-26 | Concrete pump plugging detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106895872A true CN106895872A (en) | 2017-06-27 |
Family
ID=59193522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710185728.XA Pending CN106895872A (en) | 2017-03-26 | 2017-03-26 | Concrete pump plugging detecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106895872A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109579903A (en) * | 2018-11-16 | 2019-04-05 | 中联重科股份有限公司 | Concrete equipment plugging diagnostic method and device |
| CN111060401A (en) * | 2020-01-02 | 2020-04-24 | 西南石油大学 | Method for selecting fractured stratum plugging material based on photoelastic experiment method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204064546U (en) * | 2014-08-29 | 2014-12-31 | 重庆建工新型建材有限公司 | Concrete pumping pipe plugging pick-up unit |
| CN105181459A (en) * | 2015-09-22 | 2015-12-23 | 天津城建大学 | Pressure measurement system with photo-elasticity pressure sensor |
| CN205175964U (en) * | 2015-11-30 | 2016-04-20 | 中建商品混凝土西安有限公司 | Concrete pumping pipe blockage position detection device |
| CN205592555U (en) * | 2016-05-09 | 2016-09-21 | 李翠亮 | Concrete pumping pipe blockage position detection device |
| CN206002086U (en) * | 2016-06-13 | 2017-03-08 | 上海建工集团股份有限公司 | The monitoring device of ultra-high pump concrete conveying blockage |
| CN206695823U (en) * | 2017-03-26 | 2017-12-01 | 天津大学 | Concrete pump plugging detecting system |
-
2017
- 2017-03-26 CN CN201710185728.XA patent/CN106895872A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204064546U (en) * | 2014-08-29 | 2014-12-31 | 重庆建工新型建材有限公司 | Concrete pumping pipe plugging pick-up unit |
| CN105181459A (en) * | 2015-09-22 | 2015-12-23 | 天津城建大学 | Pressure measurement system with photo-elasticity pressure sensor |
| CN205175964U (en) * | 2015-11-30 | 2016-04-20 | 中建商品混凝土西安有限公司 | Concrete pumping pipe blockage position detection device |
| CN205592555U (en) * | 2016-05-09 | 2016-09-21 | 李翠亮 | Concrete pumping pipe blockage position detection device |
| CN206002086U (en) * | 2016-06-13 | 2017-03-08 | 上海建工集团股份有限公司 | The monitoring device of ultra-high pump concrete conveying blockage |
| CN206695823U (en) * | 2017-03-26 | 2017-12-01 | 天津大学 | Concrete pump plugging detecting system |
Non-Patent Citations (1)
| Title |
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| 黎小毛等: "基于光弹性贴片法的材料表面应变场测量研究", 《应用光学》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109579903A (en) * | 2018-11-16 | 2019-04-05 | 中联重科股份有限公司 | Concrete equipment plugging diagnostic method and device |
| CN111060401A (en) * | 2020-01-02 | 2020-04-24 | 西南石油大学 | Method for selecting fractured stratum plugging material based on photoelastic experiment method |
| CN111060401B (en) * | 2020-01-02 | 2020-10-30 | 西南石油大学 | Method for selecting fractured stratum plugging material based on photoelastic experiment method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170627 |