CN110645437A - Corrugated pipe type plugging ball applied to slurry shield machine pipeline extension system - Google Patents
Corrugated pipe type plugging ball applied to slurry shield machine pipeline extension system Download PDFInfo
- Publication number
- CN110645437A CN110645437A CN201910814661.0A CN201910814661A CN110645437A CN 110645437 A CN110645437 A CN 110645437A CN 201910814661 A CN201910814661 A CN 201910814661A CN 110645437 A CN110645437 A CN 110645437A
- Authority
- CN
- China
- Prior art keywords
- corrugated pipe
- thickness
- pipe
- wave
- metal corrugated
- 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
- 239000002002 slurry Substances 0.000 title claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000002356 single layer Substances 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims abstract description 4
- 229920003225 polyurethane elastomer Polymers 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 6
- 238000012946 outsourcing Methods 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 230000000903 blocking effect Effects 0.000 description 9
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Images
Classifications
-
- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to a corrugated pipe type plugging ball applied to a slurry shield machine pipeline extension system, which comprises a metal corrugated pipe (1), wherein a layer of polyurethane elastomer material (2) is coated outside the metal corrugated pipe (1). For the metal corrugated pipe (1), the wave pitch t, the wave thickness a and the single-layer thickness h of the corrugated pipe are0Wave height H and connecting head thickness H1Is calculated based on the inner diameter of the pipe. Mainly solves the technical defects in the prior research of the slurry shield machine pipeline extending and plugging device, and solves the problems of inconvenient operation, heavier mass, small deflection, larger friction force and the like.
Description
Technical Field
The invention relates to a corrugated pipe plugging device for plugging muddy water in a muddy water balance shield machine pipeline extension system.
Background
In the process of tunneling of the slurry shield machine, the slurry feeding pipe and the slurry discharging pipe are fixed, and slurry is continuously supplied to the cutter head and discharged to the ground. However, the lengths of the mud inlet pipe and the mud discharge pipe are limited, and the mud inlet pipe and the mud discharge pipe need to be stopped for pipe connection every several meters. If the connected pipe flanges are disassembled during pipe connection, a large amount of muddy water in the steel pipes must flow into the tunnel, so that the construction environment is damaged, muddy water resources are wasted, and the requirements of civilized environment-friendly construction and resource saving are not met. In addition, the process of repeatedly taking over the shield machine is complex and time-consuming, and serious adverse effects are generated on the efficient propulsion of the whole shield machine. At present, an entity blocking cylinder type blocking ball is already available in the market, for example, in patent CN104390090A, when a pipeline leaks, the blocking ball in the hemispherical tube cavity of the pipe joint is pressed against the small hole channel under the action of water pressure, so as to block the pipeline on one side, thereby preventing water loss in the pipeline. This type of ball has low stiffness, is not easy to handle, is more worn severely, and is limited by the existing materials. For another example, patent CN206936667U discloses a pipeline plugging ball and a pipeline plugging structure. The equator radial expansion of the plugging ball in the pipe can be isolated and controlled by utilizing a magnetic field outside the pipe, so that the plugging ball is in interference fit with the pipe right when the equator radially expands, and the plugging effect is achieved. However, the blocking ball of this type has the disadvantages of heavy weight, large frictional resistance, difficulty in passing through the three-way reversing valve due to small deflection, and the like, and the middle of the blocking column body collapses with the increase of the number of uses, so that the blocking effect is deteriorated.
Disclosure of Invention
The invention aims to provide a corrugated pipe plugging ball for plugging muddy water in a muddy water balance shield machine pipeline extension system, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a be applied to balanced shield of muddy water machine pipeline and extend blocking ball of system includes: the metal corrugated pipe is made of a polyurethane elastomer material.
Mainly based on the calculation of the inner diameter of the pipeline, the specific method is as follows:
the corrugated pipe type plugging ball is applied to a slurry shield machine pipeline extension system, and the wave distance t and the wave thickness a of the metal corrugated pipe are calculated according to the following formula:
t＝0.068Din；
a＝0.0408Din；
in the formula: dinIs the inner diameter of the slurry bypass pipe, mm;
t is the wave pitch of the corrugated pipe, and t is 0.12d and mm;
d is the inner diameter of the metal corrugated pipe,
mm；
d is the outer diameter of the metal corrugated pipe, and D is 0.85Din，mm；
and a is the wave thickness of the metal corrugated pipe, and a is 0.6t and mm.
Be applied to slurry shield machine pipeline and extend bellows formula shutoff ball of system, metal corrugated pipe's single thickness h0And the wave height H of the metal bellows is calculated as follows:
in the formula: h is0The thickness of the single-layer wall of the metal corrugated pipe is mm;
h is the wave height of the metal corrugated pipe, mm;
p is the maximum bearing pressure of the corrugated pipe, MPa;
Dinis the inner diameter of the slurry bypass pipe, mm;
[ sigma ] is the allowable stress of the material, MPa.
Corrugated pipe type plugging ball applied to slurry shield machine pipeline extension system, wherein the thickness h of connecting end socket of metal corrugated pipe is1The wave number n is calculated as follows:
in the formula: h is1The thickness of the connecting end socket is mm;
L0is the effective length, L, of the metal bellows0＝1.275Din；
a is the wave thickness of the metal corrugated pipe, and a is 0.6 t;
[ sigma ] is allowable stress of material, MPa
Compared with the prior art, the invention has the beneficial effects that:
1. the weight is light, and the deflection is large;
2. the use is convenient and the plugging performance is good;
3. the installation and the disassembly are convenient, the structure is simple, and the realization is easy.
Drawings
FIG. 1 is a schematic view of a normal working state of a mud conveying pipeline;
figure 2 is a schematic diagram of the water pressure applied to the plugging device in the by-pass pipe 3.
Fig. 3 is a structural view of a metal bellows.
Fig. 4 is a structural view of a bellows type blocking ball.
Fig. 5 is a welded joint of a metal bellows and a head.
In the figure: 1. the device comprises a main slurry pipe before a valve, a main slurry pipe after the valve, a bypass pipe, a blocking ball and a three-way reversing valve with the angle of 5-135 degrees, wherein the main slurry pipe is 2.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: a corrugated pipe type plugging ball applied to a slurry shield machine pipeline extension system comprises a metal corrugated pipe 1, wherein a layer of polyurethane elastomer material 2 is coated outside the metal corrugated pipe 1. The method is characterized in that: for the metal corrugated pipe 1, the wave pitch t, the wave thickness a and the single-layer thickness h of the corrugated pipe0Wave height H and connecting head thickness H1Is calculated based on the inner diameter of the pipeline;
the wave pitch t and the wave thickness a of the metal corrugated pipe 1 are calculated according to the following formula:
t＝0.068Din；
a＝0.0408Din。
in the formula: dinIs the inner diameter of the slurry bypass pipe, mm;
t is the wave pitch of the corrugated pipe, and t is 0.12d and mm;
d is the inner diameter of the metal corrugated pipe,
mm；
d is the outer diameter of the metal corrugated pipe, and D is 0.85Din，mm；
a is the wave thickness of the metal corrugated pipe, and a is 0.6t, mm;
the single-layer thickness h of the metal corrugated pipe 10And the wave height H of the metal corrugated pipe (1) is calculated by the following formula:
in the formula: h is0The thickness of the single-layer wall of the metal corrugated pipe is mm;
Dinis the inner diameter of the slurry bypass pipe, mm;
p is the maximum bearing pressure of the corrugated pipe, MPa;
[ sigma ] is the allowable stress of the material, MPa;
h is the wave height of the metal corrugated pipe, mm;
the thickness h of the connecting end socket of the metal corrugated pipe (1)1Calculated as follows:
in the formula: h is1The thickness of the connecting end socket is mm;
Dinis the inner diameter of the slurry bypass pipe, mm;
p is the maximum bearing pressure of the corrugated pipe, MPa;
L0is the effective length, L, of the metal bellows0＝1.275Din。
The invention will be further described with reference to the accompanying drawings:
FIG. 1 shows the normal working state of a mud conveying pipeline, a three-way reversing valve is rotated after a connecting pipe command is received, and a mud main pipe 1 and a bypass pipe 3 before the valve are connected.
Figure 2 shows the water pressure on the plugging device in the by-pass pipe 3 to push the plugging ball to the proper position of the main mud pipe 1 before the valve to start the pipe connection. After the pipe connection is finished, the plugging ball returns to the initial position in the bypass pipe 3 under the action of the slurry, the three-way reversing valve is rotated, the slurry main pipe 1 in front of the valve and the slurry main pipe 2 behind the valve are communicated, and the slurry conveying work is normally carried out.
In order to explain the design content of the metal bellows type plugging ball in detail, the following description is made in detail with reference to the accompanying drawings.
Take a plugging device in a mud conveying pipeline (with the inner diameter of 450mm) as an example.
The method comprises the following steps of firstly, determining the outer diameter and the inner diameter of the metal corrugated pipe and the effective length of the metal corrugated pipe.
Outer diameter: d is 0.85Din＝0.85×450＝382.5mm；
Inner diameter:
taking the inner diameter as 260 mm;
effective length of metal bellows: l is01.2D ═ 1.2 × 382.5 ═ 459mm, L0＝460mm。
And secondly, determining the wave pitch and the wave thickness of the metal corrugated pipe.
Wave pitch t of the metal corrugated pipe:
t＝0.068Din＝0.068×450＝31.2mm；
wave thickness a:
a＝0.0408Din＝0.0408×450＝18.72mm；
the thickness of the wave was taken to be 20 mm.
And thirdly, determining the thickness of the metal corrugated pipe and the wave height of the metal corrugated pipe.
Selecting a metal corrugated pipe material of 06Cr19Ni10, the maximum bearing pressure of 3MPa and the single-layer thickness h of the corrugated pipe0Comprises the following steps:
upward rounding h0The number of layers was 5, 0.9mm each, 4.5 mm.
Wave height H of the metal bellows:
and fourthly, determining the thickness of the metal corrugated pipe end socket.
Taking the additional allowance into consideration, the thickness of the seal head is 8mm
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a be applied to mud shield and construct bellows formula shutoff ball of quick-witted pipeline extension system, it includes metal bellows (1), and metal bellows (1) outsourcing is a layer of polyurethane elastomer material (2). The method is characterized in that: for the metal corrugated pipe (1), the wave pitch t, the wave thickness a and the single-layer thickness h of the corrugated pipe are0Wave height H and connecting head thickness H1Is calculated based on the inner diameter of the pipeline;
the wave distance t and the wave thickness a of the metal corrugated pipe (1) are calculated according to the following formula:
t＝0.068Din；
a＝0.0408Din。
in the formula: dinIs the inner diameter of the slurry bypass pipe, mm;
t is the wave pitch of the corrugated pipe, and t is 0.12d and mm;
d is the inner diameter of the metal corrugated pipe,
d is the outer diameter of the metal corrugated pipe, and D is 0.85Din，mm；
a is the wave thickness of the metal corrugated pipe, and a is 0.6t, mm;
the single-layer thickness h of the metal corrugated pipe (1)0And the wave height H of the metal corrugated pipe (1) is calculated by the following formula:
in the formula: h is0The thickness of the single-layer wall of the metal corrugated pipe is mm;
Dinis the inner diameter of the slurry bypass pipe, mm;
p is the maximum bearing pressure of the corrugated pipe, MPa;
[ sigma ] is the allowable stress of the material, MPa;
h is the wave height of the metal corrugated pipe, mm;
the thickness h of the connecting end socket of the metal corrugated pipe (1)1Calculated as follows:
in the formula: h is1The thickness of the connecting end socket is mm;
Dinis the inner diameter of the slurry bypass pipe, mm;
p is the maximum bearing pressure of the corrugated pipe, MPa;
L0is the effective length, L, of the metal bellows0＝1.275Din。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910814661.0A CN110645437B (en) | 2019-08-30 | 2019-08-30 | Corrugated pipe type plugging ball applied to slurry shield machine pipeline extension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910814661.0A CN110645437B (en) | 2019-08-30 | 2019-08-30 | Corrugated pipe type plugging ball applied to slurry shield machine pipeline extension system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110645437A true CN110645437A (en) | 2020-01-03 |
| CN110645437B CN110645437B (en) | 2021-07-02 |
Family
ID=69010010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910814661.0A Active CN110645437B (en) | 2019-08-30 | 2019-08-30 | Corrugated pipe type plugging ball applied to slurry shield machine pipeline extension system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110645437B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2251046C2 (en) * | 2003-04-10 | 2005-04-27 | Елисеев Александр Анатольевич | Folding plug for pipeline |
| JP2014156690A (en) * | 2013-02-14 | 2014-08-28 | Kumagai Gumi Co Ltd | Tunnel construction method |
| CN105473808A (en) * | 2013-07-03 | 2016-04-06 | 贺德克技术有限公司 | Device for adjusting a media pressure relative to an ambient pressure |
| CN107891969A (en) * | 2017-11-25 | 2018-04-10 | 安阳市能成农机设备销售有限公司 | A kind of dilatation reduces density increase buoyant device |
| CN208564550U (en) * | 2017-12-25 | 2019-03-01 | 辽宁三三工业有限公司 | A kind of slurry shield machine cock tool changing valve gear |
| CN109736817A (en) * | 2018-11-28 | 2019-05-10 | 安徽铜都流体科技股份有限公司 | A kind of closure control technology based on low frequency electromagnetic signals communication and ball sealer intelligent positioning |
-
2019
- 2019-08-30 CN CN201910814661.0A patent/CN110645437B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2251046C2 (en) * | 2003-04-10 | 2005-04-27 | Елисеев Александр Анатольевич | Folding plug for pipeline |
| JP2014156690A (en) * | 2013-02-14 | 2014-08-28 | Kumagai Gumi Co Ltd | Tunnel construction method |
| CN105473808A (en) * | 2013-07-03 | 2016-04-06 | 贺德克技术有限公司 | Device for adjusting a media pressure relative to an ambient pressure |
| CN107891969A (en) * | 2017-11-25 | 2018-04-10 | 安阳市能成农机设备销售有限公司 | A kind of dilatation reduces density increase buoyant device |
| CN208564550U (en) * | 2017-12-25 | 2019-03-01 | 辽宁三三工业有限公司 | A kind of slurry shield machine cock tool changing valve gear |
| CN109736817A (en) * | 2018-11-28 | 2019-05-10 | 安徽铜都流体科技股份有限公司 | A kind of closure control technology based on low frequency electromagnetic signals communication and ball sealer intelligent positioning |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110645437B (en) | 2021-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106885092B (en) | Differential pressure type underwater pipeline plugging device | |
| CN204852709U (en) | Impact modification polyvinyl chloride pipe system is used in telescopic feedwater | |
| CN201047477Y (en) | Detachable wear resistant winding pipe structure | |
| CN110645437B (en) | Corrugated pipe type plugging ball applied to slurry shield machine pipeline extension system | |
| EP1864051B1 (en) | Pressure-pulsation-damping fluid supply conduit | |
| CN204493936U (en) | The joint connecting structure of anticorrosion composite pipe | |
| CN203656411U (en) | Double-rubber-ring bell and spigot steel ring of large-diameter PCCP (prestressed concrete cylinder pipe) and large-diameter PCCP | |
| CN212107092U (en) | Novel valve structure convenient for replacing sealing ring | |
| CN204592676U (en) | Wear-resistant bend | |
| CN211475181U (en) | Novel reducing three-way joint | |
| CN216045907U (en) | Welded mud pipe tee joint | |
| CN209100707U (en) | A kind of blow-off line with anti-backflow device | |
| CN109248766B (en) | Hydraulic impact pipe expander and underground pipeline non-excavation replacement system | |
| CN208169758U (en) | A kind of combined self flange | |
| CN206754638U (en) | A kind of reusable slip casting pipe connection | |
| CN206234522U (en) | A kind of vertical shaft whitewashing pipe connection | |
| CN206054964U (en) | A kind of FRPP double-walled reinforcement bellows | |
| CN220704637U (en) | Sectional perforated mud discharging pipe | |
| CN217108708U (en) | Connecting structure of multi-channel pipeline | |
| CN204988897U (en) | Rotary joint oil circuit detection device | |
| CN212156134U (en) | Hot continuous rolling seamless steel pipe | |
| CN201047478Y (en) | Double buffering winding pipe structure | |
| CN216768561U (en) | Underground pipeline laying structure with soil discharging function | |
| CN214007156U (en) | Shield machine and muck improvement system thereof | |
| CN210571866U (en) | Water supply pipeline water pressure test pressing barrel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211215 Address after: 244000 4th floor, management committee, Shizishan hi tech Industrial Development Zone, Tongling City, Anhui Province Patentee after: YINGNUOWEI VALVE INDUSTRY Co.,Ltd. Address before: No. 188, north section of Tongling City, Anhui, Anhui Patentee before: ANHUI TONGDU FLOW TECHNOLOGY Co.,Ltd. |