CN210464966U - Concrete pumping simulation test system - Google Patents
Concrete pumping simulation test system Download PDFInfo
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- CN210464966U CN210464966U CN201921675014.8U CN201921675014U CN210464966U CN 210464966 U CN210464966 U CN 210464966U CN 201921675014 U CN201921675014 U CN 201921675014U CN 210464966 U CN210464966 U CN 210464966U
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Abstract
The application provides a concrete pumping simulation test system, includes: the device comprises a box body, a temperature control device, at least two power devices, a pump pipe simulation device and at least two axial force transmission devices; the box body is used for isolating heat exchange inside and outside; the temperature control device is arranged in the box body and used for measuring and controlling the temperature in the box body; one end of the pump pipe simulation device is arranged outside the box body, and the other end of the pump pipe simulation device penetrates through the box body and is exposed outside the box body; the axial force transmission devices are respectively arranged at the end parts in the pump pipe simulation device, and concrete is filled between the adjacent axial force transmission devices; the power devices are arranged outside the box body, and each power device is connected with one axial force transmission device. According to the method and the device, the concrete pumping performance can be tested at different temperatures, and a more accurate pressure loss-flow relation in the whole pumping process at different temperatures is obtained.
Description
Technical Field
The utility model belongs to the technical field of the construction, especially, relate to a concrete pumping simulation test system.
Background
In the field of constructional engineering, self-compacting concrete is generally adopted for construction and construction of main structures of super high-rise buildings, and concrete is efficiently conveyed through advanced pumping equipment for pouring. In the concrete pumping construction scheme making and executing process, the pre-evaluation of pumping performance (usually expressed as the relation between pumping flow and total pressure loss) is an important content. Various studies including test methods have been developed for rheological properties and pumping performance of concrete materials.
Test devices for directly estimating pumping performance can be broadly divided into two categories: one type is a pump unit test and the other type is a full scale test.
The existing unit test generally selects a section of pumping pipeline which is actually adopted, and estimates the pressure loss-flow relation of the whole pumping process on the basis of the pressure loss-flow relation, and the estimated pressure loss-flow relation of the whole pumping process is inaccurate due to the fact that the measuring working condition is single and the influence of the environment on the pumping performance cannot be accurately captured; while the full-scale test typically represents a horizontal coil full-length test, which is close to real pumping, but has the problem of being too costly.
SUMMERY OF THE UTILITY MODEL
The application provides a concrete pumping simulation test system, which aims to solve the problems that in the prior art, the measurement working condition is single, and the estimated pumping whole-course pressure loss-flow relation is inaccurate due to the fact that the influence of the environment on the pumping performance cannot be accurately captured.
In order to achieve the above object, the present application provides a concrete pumping simulation test system, including: the device comprises a box body, a temperature control device, at least two power devices, a pump pipe simulation device and at least two axial force transmission devices;
the box body is used for isolating heat exchange inside and outside;
the temperature control device is arranged in the box body and is used for measuring and controlling the temperature in the box body;
one end of the pump pipe simulation device is arranged outside the box body, and the other end of the pump pipe simulation device penetrates through the box body and is exposed outside the box body;
the axial force transmission devices are respectively arranged at the end parts in the pump pipe simulation device, and concrete is filled between the adjacent axial force transmission devices;
the power devices are arranged outside the box body, and each power device is connected with one axial force transmission device.
Optionally, the concrete pumping simulation test system further includes: and the isolating device is arranged between the axial force transmission device and the concrete.
Optionally, in the concrete pumping simulation test system, the isolation device is a piston.
Optionally, in the concrete pumping simulation test system, the pump pipe simulation device is a single horizontal straight pipe section or a horizontal straight pipe section composed of a plurality of pipelines; or
The pump pipe simulation device is a single bent pipe section or a bent pipe section consisting of a plurality of pipelines; or
The pump pipe simulation device is a single vertical straight pipe section or a vertical straight pipe section consisting of a plurality of pipelines; or
The pump line simulation device includes: the device comprises a horizontal straight pipe section, a bent pipe section and a vertical straight pipe section which are connected in sequence.
Optionally, in the concrete pumping simulation test system, the power device is connected to the axial force transmission device through a traction unit.
Optionally, in the concrete pumping simulation test system, the axial force transmission device includes: the pump pipe simulation device comprises a plurality of rigid units, sliding units and connecting units, wherein each rigid unit is connected with the other rigid unit through the connecting unit, the sliding units are arranged on the rigid units, and the sliding units are used for sliding along the inner wall of the pump pipe simulation device.
Optionally, in the concrete pumping simulation test system, the rigid unit includes: at least 3 skeletons, the skeleton becomes circular array and distributes, and the one end of every skeleton set up in circular edge, other end cross connection in circular shape central point department.
Optionally, in the concrete pumping simulation test system, one sliding unit is disposed at an end of each framework disposed at the circular edge.
Optionally, in the concrete pumping simulation test system, the diameter of the circle is slightly smaller than the inner diameter of the pipeline of the pump pipe simulation device.
Optionally, in the concrete pumping simulation test system, the connection unit is a universal joint; or/and
the box body is a heat insulation box.
The beneficial effects of utility model are that:
the utility model provides a real concrete pumping simulation test system, through the isolated inside and outside heat exchange of box, and set up temperature control device in the box, measure and the box internal temperature through temperature control device, can test concrete pumping performance in order to realize under different temperatures, obtain the whole pressure loss of more accurate pump sending-flow relation under the different temperatures.
Drawings
The following further describes the present invention with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of a concrete pumping simulation test system of the present invention;
fig. 2 is a schematic structural diagram of another embodiment of a pump line simulation unit according to the present invention;
fig. 3 is a schematic structural diagram of another embodiment of the pump line simulation unit according to the present invention;
fig. 4 is a schematic structural diagram of another embodiment of the pump line simulation unit according to the present invention;
fig. 5 is a schematic structural diagram of another embodiment of a pump line simulation unit according to the present invention;
fig. 6 is a schematic structural view of the axial force transfer device of the present invention;
fig. 7 is a schematic structural view of the rigid unit of the present invention;
FIG. 8 is a schematic diagram showing a concrete trend structure comparison of the whole pumping process pressure loss-flow relation of the concrete pumping simulation test system of the present invention;
description of reference numerals:
the device comprises a box body 100, a temperature control device 200, a power device 300, a traction unit 310, a pump pipe simulation device 400, a horizontal straight pipe section 410, a bent pipe section 420, a vertical straight pipe section 430, an axial force transmission device 500, a rigid unit 510, a framework 511, a circle 512, a central point 513, a sliding unit 520, a connecting unit 530, an isolating device 600, a fixing device 700 and concrete 800.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings, which illustrate the basic structure of the invention only in a schematic manner, and therefore show only the components relevant to the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the utility model can be understood according to specific situations by those skilled in the art.
As shown in fig. 1, the present application provides a concrete pumping simulation test system, including: the device comprises a box body 100, a temperature control device 200, at least two power devices 300, a pump pipe simulation device 400 and at least two axial force transmission devices 500; the box body 100 is used for isolating heat exchange inside and outside; the temperature control device 200 is disposed in the case 100, and is used for measuring and controlling the temperature in the case 100; one end of the pump pipe simulation device 400 is arranged outside the box body 100, and the other end of the pump pipe simulation device passes through the box body 100 and is exposed outside the box body 100; the axial force transfer devices 500 are respectively arranged at the end parts in the pump pipe simulation device 400, and concrete 800 is filled between the adjacent axial force transfer devices 500; the power devices 300 are arranged outside the housing 100 and each power device 300 is connected to one axial force transfer device 500. The concrete pumping performance can be tested at different temperatures by isolating the heat exchange inside and outside the box body 100 and setting the temperature control device 200 in the box body 100 and measuring and controlling the temperature in the box body 100 through the temperature control device 200, so that the more accurate pumping whole-course pressure loss-flow relation at different temperatures is obtained.
As shown in fig. 1, in an embodiment of the present application, the method further includes: an isolation device 600 disposed between the axial force transfer device 500 and the concrete 800. This application can effectually avoid the contact of axial force transfer device 500 with the concrete, prevents that the concrete from permeating to in the axial force transfer device 500 to from the exit seepage of pump line analogue means 400, set up more reliably, measuring result is more accurate.
In one embodiment of the present application, the isolation device 600 is a piston. The piston has the advantages of easy installation and low cost.
The pump pipe simulation unit of this application can carry out corresponding adjustment according to the pump pipe equipment mode of planning to adopt in the actual engineering and extend, and concrete mode includes:
(1) as shown in fig. 2, the pump tube simulator 400 is a single horizontal straight tube section 410 or a horizontal straight tube section 410 composed of a plurality of tubes.
(2) The pump-line simulator 400 is a single elbow section 420 or an elbow section 420 composed of a plurality of pipes.
(3) As shown in fig. 3, the pump tube simulator 400 is a single vertical straight tube section 430 or a vertical straight tube section 430 composed of a plurality of tubes.
(4) As shown in fig. 1, 4 and 5, the pump tube simulation apparatus 400 includes: a straight horizontal pipe section 410, a bent pipe section 420 and a straight vertical pipe section 430 connected in sequence. The elbow section 420 may be an upper elbow as shown in fig. 1, a lower elbow as shown in fig. 3, or a horizontal elbow as shown in fig. 5.
In one embodiment of the present application, as shown in fig. 1, the power device 300 is connected to the axial force transfer device 500 via a traction unit 310. The traction unit 310 may be a traction rope or a traction rod.
As shown in fig. 6, in one embodiment of the present application, an axial force transfer device 500 comprises: a plurality of rigid units 510, a sliding unit 520, and a connecting unit 530, each of the rigid units 510 being connected by the connecting unit 530, the sliding unit 520 being disposed on the rigid unit 510, the sliding unit 520 being configured to slide along an inner wall of the pump tube simulation apparatus 400. Because the connecting unit 530 can be a plurality of, the rigid unit can be according to the expansion of the size freedom of pump line analogue means 400 pipe diameter, and the form is more various, can satisfy the demand of different pipe diameters. The sliding unit 520 drives the rigid unit 510 to slide on the inner wall of the pump tube simulation apparatus 400, so that the sliding is smoother.
As shown in fig. 7, in one embodiment of the present application, the rigid unit 510 includes: at least 3 skeletons 511, the skeletons 511 are distributed in a circular 512 array, and one end of each skeleton 511 is arranged at the edge of the circular 512, and the other end is connected with the central point 513 of the circular 512 in a crossing way. The rigid unit 510 is more uniformly stressed and has a firmer structure.
In one embodiment of the present application, one sliding unit 520 is disposed at an end of each bobbin 511 disposed at an edge of the circle 512. The rigid unit 510 thus provided slides more smoothly.
In one embodiment of the present application, the diameter D of the circle 512 is slightly smaller than the inner diameter of the tubing of the pump-tubing simulator 400. The rigid unit 510 thus provided can slide smoothly on the inner wall of the pump tube simulator 400, avoiding the problem of jamming.
In one embodiment of the present application, the connection unit 530 is a gimbal. The universal joint can guarantee that the rigid unit 510 extends to different directions, and the connection relation is various, can satisfy the requirement of different designs.
In one embodiment of the present application, the box 100 is a heat insulated box. Through the isolated inside and outside heat exchange of box 100, avoided the external environment to the temperature influence of box 100, temperature control device 200 need not frequent regulation temperature, operates simplyr.
As shown in fig. 1, in an embodiment of the present application, the method further includes: the fixing device 700, the power device 300 and the pump pipe simulation device 400 are all arranged on the inner wall of the box body 100 through the fixing device 700. The installation is more stable through the fixation of the fixing device 700.
As shown in fig. 8, the working process of the present application is:
firstly, preparing measurement;
horizontally connecting the power device 300, the traction unit 310, the rigid unit 510 and the isolation device 600 (the isolation device 600 is positioned at the starting point b of the bent pipe);
in the vertical direction, a sample of fresh concrete 800 is injected from a position d above the vertical pipe to fill the elbow section bc; then connecting another isolation device 600, another rigid unit 510, another traction unit 310, another power device 300 (the isolation device 600 is located at the elbow termination point c);
starting the two power devices 300 in the horizontal direction and the vertical direction, and applying a smaller initial force to ensure that each joint is well contacted and compacted with concrete; the initial force is zeroed.
The temperature control device 200 is started to stabilize the temperature in the box 100 at the environmental temperature to be simulated, and further regulation and control are performed according to the measurement requirements.
Secondly, measurement is carried out:
the concrete is moved in the curved section bc by two power means 300 pulling the rigid unit 510 at the same speed v. The forces F1 and F2 provided by the two powerplants 300 were recorded separately, resulting in a pumping global pressure loss-flow relationship at a particular temperature.
According to the arrow direction in the figure, F1 is positive, F2 is negative, namely F1 and F2 both enable the concrete to be pressed (the factors of gravity, friction and the like of the device are measured in advance, so that only the force after calibration is discussed here); from the mechanical balance analysis, it can be seen that when the isolator 600, the rigid unit 510, enters the elbow segment bc, the force provided by the power unit 300 is still transmitted to the isolator 600 along the axis and applied to the concrete 800 at the same magnitude.
And thirdly, finishing measurement:
when the power device 300 in the original horizontal direction passes through the whole elbow section bc and the initial point of the concrete becomes the end point c of the elbow, all the concrete is pushed away from the elbow section bc, and the measurement is finished.
Fourthly, cleaning:
the vertical straight pipe section 430, the traction unit 310, the rigid unit 510 and the isolation device 600 are removed, and the traction unit 310, the rigid unit 510 and the isolation device 600 in the horizontal direction are pulled out from the inlet a of the horizontal straight pipe section 410, namely: and concrete in the pipeline also flows out from the position a and is cleaned.
In light of the foregoing description of the preferred embodiments of the present invention, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A concrete pumping simulation test system is characterized by comprising: the device comprises a box body, a temperature control device, at least two power devices, a pump pipe simulation device and at least two axial force transmission devices;
the box body is used for isolating heat exchange inside and outside;
the temperature control device is arranged in the box body and is used for measuring and controlling the temperature in the box body;
one end of the pump pipe simulation device is arranged outside the box body, and the other end of the pump pipe simulation device penetrates through the box body and is exposed outside the box body;
the axial force transmission devices are respectively arranged at the end parts in the pump pipe simulation device, and concrete is filled between the adjacent axial force transmission devices;
the power devices are arranged outside the box body, and each power device is connected with one axial force transmission device.
2. The concrete pumping simulation test system of claim 1, further comprising: and the isolating device is arranged between the axial force transmission device and the concrete.
3. The concrete pumping simulation test system of claim 2, wherein the isolation device is a piston.
4. The concrete pumping simulation test system according to claim 1, wherein the pump pipe simulation device is a single horizontal straight pipe section or a horizontal straight pipe section composed of a plurality of pipes; or
The pump pipe simulation device is a single bent pipe section or a bent pipe section consisting of a plurality of pipelines; or
The pump pipe simulation device is a single vertical straight pipe section or a vertical straight pipe section consisting of a plurality of pipelines; or
The pump line simulation device includes: the device comprises a horizontal straight pipe section, a bent pipe section and a vertical straight pipe section which are connected in sequence.
5. The concrete pumping simulation test system of claim 1, wherein the power device is connected to the axial force transfer device through a traction unit.
6. The concrete pumping simulation test system of claim 1, wherein the axial force transfer device comprises: the pump pipe simulation device comprises a plurality of rigid units, sliding units and connecting units, wherein each rigid unit is connected with the other rigid unit through the connecting unit, the sliding units are arranged on the rigid units, and the sliding units are used for sliding along the inner wall of the pump pipe simulation device.
7. The concrete pumping simulation test system of claim 6, wherein the rigid unit comprises: at least 3 skeletons, the skeleton becomes circular array and distributes, and the one end of every skeleton set up in circular edge, other end cross connection in circular shape central point department.
8. The concrete pumping simulation test system of claim 7, wherein one sliding unit is disposed at an end of each frame disposed at the circular edge.
9. The concrete pumping simulation test system of claim 7, wherein the diameter of the circle is slightly smaller than the inner diameter of the pipeline of the pump pipe simulation device.
10. The concrete pumping simulation test system of claim 7, further comprising: and the power device and the pump pipe simulation device are arranged on the inner wall of the box body through the fixing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921675014.8U CN210464966U (en) | 2019-10-09 | 2019-10-09 | Concrete pumping simulation test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921675014.8U CN210464966U (en) | 2019-10-09 | 2019-10-09 | Concrete pumping simulation test system |
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| Publication Number | Publication Date |
|---|---|
| CN210464966U true CN210464966U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921675014.8U Active CN210464966U (en) | 2019-10-09 | 2019-10-09 | Concrete pumping simulation test system |
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| CN (1) | CN210464966U (en) |
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- 2019-10-09 CN CN201921675014.8U patent/CN210464966U/en active Active
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