CN106958712A - A kind of Impulse force of concrete pump pipe abatement device - Google Patents
A kind of Impulse force of concrete pump pipe abatement device Download PDFInfo
- Publication number
- CN106958712A CN106958712A CN201710236965.4A CN201710236965A CN106958712A CN 106958712 A CN106958712 A CN 106958712A CN 201710236965 A CN201710236965 A CN 201710236965A CN 106958712 A CN106958712 A CN 106958712A
- Authority
- CN
- China
- Prior art keywords
- outer tube
- concrete
- inner sleeve
- bead
- pipe
- 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.)
- Pending
Links
- 239000011324 bead Substances 0.000 claims abstract description 30
- 238000003825 pressing Methods 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 229920000728 polyester Polymers 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000011737 fluorine Substances 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- -1 fluorine ester Chemical class 0.000 claims 1
- 238000005086 pumping Methods 0.000 abstract description 6
- 230000003014 reinforcing effect Effects 0.000 abstract description 5
- 238000005266 casting Methods 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000009415 formwork Methods 0.000 abstract description 3
- 230000001687 destabilization Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/041—Devices damping pulsations or vibrations in fluids specially adapted for preventing vibrations
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a kind of Impulse force of concrete pump pipe abatement device, including inner sleeve, outer tube and a plurality of dampers, described damper is telescopic damper；The front portion of inner sleeve is inserted in the endoporus of overcoat pipe sleeve, is slidably matched with outer tube；The rear portion of inner sleeve includes bead, and the rear portion of outer tube also includes bead；The front end of a plurality of described dampers and the bead of outer tube are connected, and the bead of rear end and inner sleeve is connected.The present invention is cleared up by damper and telescoping tube collaboration coupling to axial pulse push-pull effort, the vibration of concrete duct is set to reach minimum, so as to be prevented effectively from concrete when pouring the influence to form work engineering and reinforcing bar colligation of concrete duct and its support and reduce pipe of concrete because of the frictional dissipation produced by reciprocating motion and due to the concrete pumping pipe of cantilever it is long caused by destabilization problems, can significantly lift the safety guarantee in the pouring quality and casting process of concrete component.
Description
[technical field]
The present invention relates to concrete pumping system, more particularly to a kind of Impulse force of concrete pump pipe abatement device.
[background technology]
In construction, the application of pump concrete is more and more extensive.There to be certain fluidity by concrete pump
Concrete conveyance to predetermined position.Current concrete pump typically uses hydraulic-driven twin-cylinder reciprocating form, passes through two
Oil cylinder alternating action, promotes the working piston force feed concrete in concrete cylinder, realizes the continuous conveying of concrete.
During the two-piston cylinder alternation of concrete pump, hydraulic shock phenomenon can be produced.Pipeline is typically directly located at template
On support frame, when carrying out transport and casting concrete by delivery pipe, the pipeline horizontal pulse power produced is moved by concrete
The top of template supporting pillar is will act at, causes Bracing Systems to vibrate and support may be caused to produce wild effect.
" concrete " the 2nd phase in 2008 (total 220th phase)《The experimental study of Impulse force of concrete pump pipe》Indicate coagulation
Native pulse push-pull effort is in corresponding relation with pipe of concrete length, push frequency and strength grade of concrete.
The pulse push-pull effort that hydraulic action can be produced, with the extension of concrete duct, pulse push-pull effort gradually increases, when
This pulse push-pull effort can produce different journeys to pipe of concrete support reliability and template offset deviation etc. after reaching to a certain degree
The influence of degree.When pump pipe impulse force is very big, it is possible to cause the destruction of template or the good reinforcing bar of colligation and plate, cause pump line branch
Frame loosens and ftractureed, or even caves in.
Patent No. CN201420281853.2 utility model discloses a kind of system for reducing reciprocating pump pipe vibration,
The technical scheme used is, including feed liquid storage tank and reciprocating pump, the suction inlet pipeline connection of feed liquid storage tank and reciprocating pump is described
Feed liquid is delivered on feeding point, the pipeline of the reciprocal pump discharge and is also communicated with pulse by the outlet of reciprocating pump by pipeline
Damper, the feed liquid storage tank is also connected by bypass duct with the pipeline of reciprocal pump discharge, the bypass duct, reciprocal
The tie point of pump discharge pipeline is located between pulse damper and reciprocating pump, and safety valve is also equipped with bypass duct.The reality
It can be used for common fluid with new technical scheme, but can not be applied in the pumping system of concrete,
[content of the invention]
The technical problem to be solved in the present invention is to provide a kind of concrete pump pipe that can be applied in concrete pumping system
Impulsive force abatement device.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is that a kind of Impulse force of concrete pump pipe is cut down
Device, including inner sleeve, outer tube and a plurality of dampers, described damper is telescopic damper；The front portion of inner sleeve
In the endoporus for being inserted in overcoat pipe sleeve, it is slidably matched with outer tube；The rear portion of inner sleeve includes bead, and the rear portion of outer tube also includes
Bead；The front end of a plurality of described dampers and the bead of outer tube are connected, and the bead of rear end and inner sleeve is connected.
Above-described Impulse force of concrete pump pipe abatement device, including carbon shoe and pressing plate, overcoat pipe orifice
Rear end includes the packing groove of annular, and carbon shoe is seated in packing groove, and described pressing plate is fixed on the rear of outer tube, will
Carbon shoe is compressed.
Above-described Impulse force of concrete pump pipe abatement device, including complex root slide bar, the front end of the slide bar includes
External screw thread；Pressing plate includes bead, and the bead of pressing plate includes a plurality of sliding rod holes；The bead of outer tube includes a plurality of sliding rod holes,
The front end of slide bar is screwed on the external screw thread of the front end of slide bar through the sliding rod hole of outer tube and the sliding rod hole of pressing plate, two nuts
Pressing plate is fixed on to the rear of outer tube bead；The bead of inner sleeve includes a plurality of sliding rod holes, and the rear portion of slide bar passes through inner sleeve
The sliding rod hole of pipe, is slidably matched with the sliding rod hole of inner sleeve；The rear end of slide bar is fixed with stop nut.
Above-described Impulse force of concrete pump pipe abatement device, including fluorinated polyesters sealing ring, the front portion of inner sleeve includes
Annular groove, fluorinated polyesters sealing ring is arranged in annular groove.
Above-described Impulse force of concrete pump pipe abatement device, described damper is piston type viscous damper, multiple
Several dampers are uniform along the circumference of inner sleeve.
Above-described Impulse force of concrete pump pipe abatement device, including universal compensator, inner sleeve pass through universal compensation
Device is connected with the outlet of concrete pump.
Above-described Impulse force of concrete pump pipe abatement device, universal compensator includes inner and outer tubes, and inner tube is anterior
Including bulb, the rear portion of outer tube includes being embedded with fluorinated polyesters seal rubber sleeve, the endoporus of fluorinated polyesters seal rubber sleeve in shoulder hole, shoulder hole
It is adapted to the bulb of inner tube；The rear end of inner tube is connected by pipe joint with the outlet of concrete pump, the front end of outer tube by pipe joint with
The rear end connection of inner sleeve.
Above-described Impulse force of concrete pump pipe abatement device, including support, support include tripod, balance weight iron and branch
Seat, the bottom of bearing is fixed on the platform at the top of tripod, and balance weight iron is suspended on the lower section of tripod platform；Outer tube
Middle part is fixed in the endoporus of bearing.
Above-described Impulse force of concrete pump pipe abatement device, including frequency determinator, frequency determinator are fixed on interior
On the outer wall of sleeve pipe.
Above-described Impulse force of concrete pump pipe abatement device, impulsive force F is tried to achieve as follows：
F=0.25P+0.07S-11.45
Wherein, impulsive force F unit is KN, and P is the frequency values that frequency determinator is measured, and unit is hertz；S is concrete
Intensity after final set, unit for MPa；The specification of damper and impulsive force F numerical value match.
The present invention is cleared up by damper and telescoping tube collaboration coupling to axial pulse push-pull effort, makes pipe of concrete
The vibration in road reaches minimum, so as to be prevented effectively from concrete when pouring concrete duct and its support to form work engineering and
The influence of reinforcing bar colligation and reduction pipe of concrete are because of the frictional dissipation produced by reciprocating motion and the concrete pumping due to cantilever
Destabilization problems caused by pipeline is long, can significantly lift the safety in the pouring quality and casting process of concrete component
Ensure, may apply to the clear-water concrete engineering higher to pouring quality requirement and need the reinforcing bar of great cantilever pumping line to mix
In the construction of Xtah Crude Clay structure.
[brief description of the drawings]
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the front view of embodiment of the present invention Impulse force of concrete pump pipe abatement device main part.
Fig. 2 is A in Fig. 1 to sectional view.
Fig. 3 is the front view of embodiment of the present invention Impulse force of concrete pump pipe abatement device.
[embodiment]
The structure of embodiment of the present invention Impulse force of concrete pump pipe abatement device as shown in Figure 1 to Figure 3, including main part
100th, universal compensator 300 and support 200.
Main part 100 includes inner sleeve 1, outer tube 2, pressing plate 3,4 spacing slide bars 4,4 dampers 5.
Damper 5 is piston type viscous damper, by piston rod 501, piston 502, dust-proof sleeve 503, resisting medium
504th, spring 505 and piston/cylinder 506 are constituted.
The front portion of inner sleeve 1 is inserted in the endoporus of 2 sets of outer tube, is slidably matched with outer tube 2, constitutes telescoping tube.Inner sleeve
There is a bead 101 at the rear portion of pipe 1, and there is a bead 201 at the rear portion of outer tube 2.
The front end of 4 dampers 5 is connected with the bead of outer tube 2, and rear end is connected with the bead of inner sleeve 1；Along inner sleeve 1
It is circumferential uniform..
There is the packing groove of a ring shape rear end of the endoporus of outer tube 2, and carbon shoe 6 is seated in packing groove, and pressing plate 3 is consolidated
The rear of outer tube 2 is scheduled on, carbon shoe is compressed.
The front end of spacing slide bar 4 is threaded rod.The bead of pressing plate 3 has 4 sliding rod holes 301.The bead of outer tube 2 has 4
Sliding rod hole 202, the threaded rod of the front end of slide bar 4 passes through the sliding rod hole 202 of outer tube 2 and the sliding rod hole 301 of pressing plate 3, two nuts 7
Screw the rear that pressing plate 3 is fixed on to the bead of outer tube 2 on the nose threads bar of slide bar 4.
The bead of inner sleeve 1 has 4 sliding rod holes 102, and the rear portion of slide bar 4 passes through the sliding rod hole 102 of inner sleeve 1, with inner sleeve
The sliding rod hole 102 of pipe 1 is slidably matched, and when being easy to the damper to stretch, slide bar 4 slidably reciprocates in sliding rod hole 102.After slide bar 4
End is fixed with stop nut 8.
There is twice annular groove the front portion of inner sleeve, and two fluorinated polyesters sealing rings 9 are arranged in this twice annular groove, improve inner sleeve
Sealing property between 1 and overcoat pipe orifice 203.
Inner sleeve 1 is connected by universal compensator 300 with the outlet of concrete pump 400.
Universal compensator 300 includes inner tube 10 and outer tube 11, and there are a bulb 1001, the rear portion of outer tube 11 in the front portion of inner tube 10
Have and fluorinated polyesters seal rubber sleeve 12, the endoporus of fluorinated polyesters seal rubber sleeve 12 are embedded with the macropore of a shoulder hole, the macropore of shoulder hole
It is adapted to for sphere with the bulb 1001 of inner tube 10.The rear end of inner tube 10 is connected by pipe joint 13 with the outlet of concrete pump 400, outer tube
11 front end is connected by pipe joint 14 with the rear end of inner sleeve 1.
In order to obtain frequency determinator 15 is housed on impulsive force F, the outer wall of inner sleeve 1.
Impulsive force F is tried to achieve as follows：
F=0.25P+0.07S-11.45
Wherein, impulsive force F unit is KN, and P is the frequency values that frequency determinator is measured, and unit is hertz.S is concrete
Intensity after final set, unit for MPa.The specification of damper 5 and impulsive force F numerical value match, i.e., the maximum that damper 5 allows
Load should be slightly bigger than the impulsive force F of damper 5.
Table 1：HR viscous damper specification tables：
| Model | Maximum range | Temperature in use | Peak load |
| HR 60 | 100mm | 0-70℃ | 5.5KN |
| HR 80 | 100mm | 0-70℃ | 4.5KN |
| HR 100 | 100mm | 0-70℃ | 3.5KN |
Support includes tripod 15, balance weight iron 16 and bearing 17, and the bottom of bearing 17 is fixed on the flat of the top of tripod 15
On platform, balance weight iron 16 is suspended on the lower section of the platform of tripod 15.The middle part of outer tube 2 is fixed in the endoporus of bearing 17, overcoat
The front portion of pipe 2 is connected with output pump line.
Above example of the present invention opens pump machine without several minutes of concrete running no load, works as place before casting concrete
Obtained in the frequency determinator on flexible inner casing tube after respective value, the telescoping tube that the viscous damper of respective model is installed
Side, after being then fixed in support platform by telescoping tube and connect concreting pipe, device installation, counterweight according to
Pipe of concrete Vibration Condition takes the circumstances into consideration increase (quality of increase support platform, can increase its maximum static friction force).
Universal compensator its inner sleeve in above example of the present invention can freely adjust angle, therefore for different shaped
Number pump truck and various complicated surrounding enviroment, concrete pump pipe more can be flexibly adjusted, so as to ensure concrete delivery pipe
Levelness or perpendicularity.Avoid because pump truck can produce larger vibration during pump concrete, therefore simultaneously
Pump truck can produce the swing along caliber direction to delivery pipe, when swinging excessive because the density of coarse aggregate and mortar not
Together, the separation of inside concrete aggregate and mortar is easily caused, so as to cause the pouring quality of concrete to decline.The thick bone of isolation
Material is easily built up when by pump line corner, so as to cause concrete pump blockage even booster.
When the piston pump concrete of concrete pump, concrete be directed to in telescoping tube.When concrete is quick
When being pushed into telescoping tube to duct orientation, because the presence of the shearing stress between concrete and pipeline will drive outer tube forward, this
When viscous damper will produce opposite direction active force, cut down pipeline kinetic energy；When the piston of concrete pump is replied, pipeline
Drawn by concrete pump machine toward pump machine direction, now viscous damper provides the power opposite with the outer tube direction of motion, so as to protect
Card pipeline will not be crossed because of the reciprocating forces produced by pump machine and significantly swung, and reach that viscous damper couples telescoping tube
The bidirectional pulse push-pull effort that road is produced to concrete carries out power consumption and cleared up, and finally reaches concrete duct and reduces vibration and concrete
The purpose uniformly poured.
In summary, above example of the present invention is pushed away by viscous damper and telescoping tube collaboration coupling to axial pulse
Pulling force is cleared up, and the vibration of concrete duct is reached minimum, so as to be prevented effectively from concrete concrete when pouring
Pipeline and its support are to the influence and reduction pipe of concrete of form work engineering and reinforcing bar colligation because of the friction damage produced by reciprocating motion
Consumption (loss easily produces booster under pressure caused by pipe friction), can significantly lift pouring for concrete component
Quality, is applied in the clear-water concrete engineering higher to pouring quality requirement and extra large work engineering.
Claims (10)
1. a kind of Impulse force of concrete pump pipe abatement device, including damper, it is characterised in that including inner sleeve, outer tube and
A plurality of described dampers, described damper is telescopic damper；The front portion of inner sleeve is inserted in the endoporus of overcoat pipe sleeve
In, it is slidably matched with outer tube；The rear portion of inner sleeve includes bead, and the rear portion of outer tube also includes bead；Described in a plurality of
The front end of damper and the bead of outer tube are connected, and the bead of rear end and inner sleeve is connected.
2. Impulse force of concrete pump pipe abatement device according to claim 1, it is characterised in that including carbon shoe and
Pressing plate, the rear end of overcoat pipe orifice includes the packing groove of annular, and carbon shoe is seated in packing groove, and described pressing plate is fixed
At the rear of outer tube, carbon shoe is compressed.
3. Impulse force of concrete pump pipe abatement device according to claim 2, it is characterised in that including complex root slide bar,
The front end of the slide bar includes external screw thread；Pressing plate includes bead, and the bead of pressing plate includes a plurality of sliding rod holes；The bead of outer tube
Including a plurality of sliding rod holes, the front end of slide bar is through the sliding rod hole of outer tube and the sliding rod hole of pressing plate, and two nuts are screwed in cunning
Pressing plate is fixed on to the rear of outer tube bead on the external screw thread of the front end of bar；The bead of inner sleeve includes a plurality of sliding rod holes,
The rear portion of slide bar passes through the sliding rod hole of inner sleeve, is slidably matched with the sliding rod hole of inner sleeve；Limited location spiral shell is fixed in the rear end of slide bar
It is female.
4. Impulse force of concrete pump pipe abatement device according to claim 1, it is characterised in that including fluorinated polyesters sealing
Ring, the front portion of inner sleeve includes annular groove, and fluorinated polyesters sealing ring is arranged in annular groove.
5. Impulse force of concrete pump pipe abatement device according to claim 1, it is characterised in that described damper is living
Plug viscous damper, a plurality of dampers are uniform along the circumference of inner sleeve.
6. Impulse force of concrete pump pipe abatement device according to claim 1, it is characterised in that including universal compensator,
Inner sleeve is connected by universal compensator with the outlet of concrete pump.
7. Impulse force of concrete pump pipe abatement device according to claim 1, it is characterised in that universal compensator includes interior
Pipe and outer tube, inner tube front portion include bulb, and the rear portion of outer tube includes being embedded with fluorinated polyesters seal rubber sleeve in shoulder hole, shoulder hole, gathered
The endoporus of fluorine ester seal rubber sleeve is adapted to the bulb of inner tube；The rear end of inner tube is connected by pipe joint with the outlet of concrete pump, outer tube
Front end connected by the rear end of pipe joint and inner sleeve.
8. Impulse force of concrete pump pipe abatement device according to claim 1, it is characterised in that including support, support bag
Tripod, balance weight iron and bearing are included, the bottom of bearing is fixed on the platform at the top of tripod, and balance weight iron is suspended on tripod
The lower section of platform；It is fixed in the middle part of outer tube in the endoporus of bearing.
9. Impulse force of concrete pump pipe abatement device according to claim 1, it is characterised in that including frequency determinator,
Frequency determinator is fixed on the outer wall of inner sleeve.
10. Impulse force of concrete pump pipe abatement device according to claim 9, it is characterised in that impulsive force F presses following public affairs
Formula is tried to achieve：
F=0.25P+0.07S-11.45
Wherein, impulsive force F unit is KN, and P is the frequency values that frequency determinator is measured, and unit is hertz；S is concrete final set
Intensity afterwards, unit for MPa；The specification of damper and impulsive force F numerical value match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710236965.4A CN106958712A (en) | 2017-04-12 | 2017-04-12 | A kind of Impulse force of concrete pump pipe abatement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710236965.4A CN106958712A (en) | 2017-04-12 | 2017-04-12 | A kind of Impulse force of concrete pump pipe abatement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106958712A true CN106958712A (en) | 2017-07-18 |
Family
ID=59483757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710236965.4A Pending CN106958712A (en) | 2017-04-12 | 2017-04-12 | A kind of Impulse force of concrete pump pipe abatement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106958712A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282090A (en) * | 2018-11-25 | 2019-01-29 | 邱敏敏 | A kind of mixed mud delivery pump for building pipeline valve that can compensate wearing clearance automatically |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06213388A (en) * | 1993-01-20 | 1994-08-02 | Tokyu Constr Co Ltd | Pulsation absorbing device for concrete pressure feed pipe |
| CN102297312A (en) * | 2011-06-28 | 2011-12-28 | 北京市三一重机有限公司 | Mechanism for lowering fluid pulse impact, double-cylinder reversing pumping system and concrete pump |
| CN202691376U (en) * | 2012-05-24 | 2013-01-23 | 武汉科发膨胀节工程技术有限公司 | Wear-resistant metal telescopic pipe for pulverized coal conveying pipe of multichannel burner |
| CN203742544U (en) * | 2014-04-02 | 2014-07-30 | 成都杜特威石油科技有限公司 | Well cementing device for ultrasonically processing downhole hydraulic pulse coupled concrete slurry |
| CN104019313A (en) * | 2014-06-06 | 2014-09-03 | 江苏贝特管件有限公司 | Integrated high-pressure resistant non-leakage sleeve compensator |
| CN204005010U (en) * | 2014-08-19 | 2014-12-10 | 重庆朗福环保科技有限公司 | A kind of pipeline valve vibration damping equipment |
| CN205278785U (en) * | 2015-11-20 | 2016-06-01 | 湖南省湘衡盐化有限责任公司 | Eliminate pipeline vibration's device |
-
2017
- 2017-04-12 CN CN201710236965.4A patent/CN106958712A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06213388A (en) * | 1993-01-20 | 1994-08-02 | Tokyu Constr Co Ltd | Pulsation absorbing device for concrete pressure feed pipe |
| CN102297312A (en) * | 2011-06-28 | 2011-12-28 | 北京市三一重机有限公司 | Mechanism for lowering fluid pulse impact, double-cylinder reversing pumping system and concrete pump |
| CN202691376U (en) * | 2012-05-24 | 2013-01-23 | 武汉科发膨胀节工程技术有限公司 | Wear-resistant metal telescopic pipe for pulverized coal conveying pipe of multichannel burner |
| CN203742544U (en) * | 2014-04-02 | 2014-07-30 | 成都杜特威石油科技有限公司 | Well cementing device for ultrasonically processing downhole hydraulic pulse coupled concrete slurry |
| CN104019313A (en) * | 2014-06-06 | 2014-09-03 | 江苏贝特管件有限公司 | Integrated high-pressure resistant non-leakage sleeve compensator |
| CN204005010U (en) * | 2014-08-19 | 2014-12-10 | 重庆朗福环保科技有限公司 | A kind of pipeline valve vibration damping equipment |
| CN205278785U (en) * | 2015-11-20 | 2016-06-01 | 湖南省湘衡盐化有限责任公司 | Eliminate pipeline vibration's device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282090A (en) * | 2018-11-25 | 2019-01-29 | 邱敏敏 | A kind of mixed mud delivery pump for building pipeline valve that can compensate wearing clearance automatically |
| CN109282090B (en) * | 2018-11-25 | 2021-08-03 | 中建二局第二建筑工程有限公司 | Pipeline valve capable of automatically compensating abrasion clearance for concrete conveying pump for building |
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Application publication date: 20170718 |