CN208588642U - An ultra-high pumping concrete flow pattern monitoring device - Google Patents

Abstract

The utility model belongs to the technical field of building construction, in particular to an ultra-high pumping concrete flow pattern monitoring device, which is used for monitoring the cross-sectional flow pattern of concrete during the pumping process and accurately judging whether a lubricating layer actually exists. It includes a concrete pumping simulation transparent pipeline, a transparent box and a concrete conveying pipeline that are connected to each other, and also includes a high-definition camera system and a thrust system; the hollow transparent box of the transparent box is respectively provided with a top plate connection hole and a bottom plate connection hole. The diameter matches the diameter of the concrete pumping simulation transparent pipeline, the diameter of the connecting hole of the bottom plate matches the diameter of the concrete conveying pipeline, the thrust system provides thrust for the concrete transportation, and the high-definition camera system is placed in front of the concrete pumping simulation transparent pipeline. Used to observe and record the flow pattern of concrete.

Description

An ultra-high pumping concrete flow pattern monitoring device

technical field

The utility model belongs to the technical field of building construction, in particular to a device for monitoring the flow form of ultra-high pumping concrete.

Background technique

In view of the correlation between yield stress τ ₀ and slump, expansion and plastic viscosity μ and T50, the study of concrete rheological properties has become an important part of the field of concrete ultra-high pumping technology. As a key link in the study of rheological properties, the study of concrete flow morphology has gradually attracted the attention of scholars at home and abroad. A typical research method is to install a transparent plastic pipe of the same diameter at the outlet/inlet of the pipe, and install an ultrasonic flow meter on the plastic pipe to detect the velocity profile of the concrete cross-section at a depth of 15mm in the pipe wall, and to study the concrete during the pumping process. flow form. However, this method is difficult to control the positioning of the ultrasonic flowmeter, which will greatly affect the measurement accuracy. At the same time, this method can only detect the velocity profile within 15mm of the pipeline, which has certain research limitations.

Therefore, there is an urgent need for a scientific, accurate and highly applicable ultra-high pumping concrete flow pattern monitoring device.

Utility model content

The utility model provides an ultra-high pumping concrete flow form monitoring device, which is used for monitoring the cross-sectional flow form of concrete during the pumping process, and accurately judging whether a lubricating layer actually exists .

In order to solve the above technical problems, the utility model includes the following technical solutions:

An ultra-high pumping concrete flow pattern monitoring device, which includes a concrete pumping simulation transparent pipeline, a transparent box and a concrete conveying pipeline that are connected to each other, and also includes a high-definition camera system and a thrust system; wherein, the transparent box includes four feet The hollow transparent box is provided with a top plate connecting hole and a bottom plate connecting hole, the diameter of the top plate connecting hole is matched with the diameter of the concrete pumping simulated transparent pipe, and the bottom plate connecting hole The diameter of the concrete conveying pipeline matches the diameter of the concrete conveying pipeline, the thrust system provides thrust for the conveying of concrete, and the high-definition camera system is placed in front of the concrete pumping simulation transparent pipeline to observe and record the flow of concrete form.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The ultra-high pumping concrete flow pattern monitoring device of the present invention includes concrete pumping simulation transparent pipes and concrete conveying pipes respectively arranged at the top and bottom ends of the transparent box, and also includes a thrust system and a high-definition camera system. Under the action of the thrust system, the concrete conveying pipeline at the lower end enters the transparent box and fills it up, and the concrete in the transparent box is transported to the concrete pumping simulation transparent pipeline until it is close to the top of the concrete. The box is pumped into the concrete to simulate the flow pattern of the entire process of transparent pipes and filling to the top of them. Finally, by performing image processing on the photographic images obtained by the high-definition camera system, and fitting the flow shape curve of the concrete section, the flow shape of the concrete under the simulated pumping action can be analyzed, and it can be judged whether the lubricating layer actually exists or in what form during the conveying process. It exists to provide technical support for the research on the rheological properties of ultra-high pumping concrete.

(2) The ultra-high pumping concrete flow pattern monitoring device of the present invention is simple and convenient to operate, and the components involved can be disassembled and assembled for many times and applied flexibly, which is suitable for routine experimental research and has good popularization value.

Further, the concrete pumping simulation transparent pipe is made of plexiglass or plastic.

Further, the height of the four foot supports is greater than or equal to 0.5 meters.

Further, the concrete pumping simulation transparent pipe and the connection hole of the top plate, and the concrete conveying pipe and the connection hole of the bottom plate are connected by screw connection or snap connection.

Further, the hollow transparent box is made of plexiglass or plastic.

Description of drawings

FIG. 1 is a schematic structural diagram of a device for monitoring the flow pattern of ultra-high pumping concrete in an embodiment of the present invention.

In the picture:

10-Concrete pumping simulation transparent pipeline; 20-Transparent box, 21-Hollow transparent box, 22-Foot support; 31-Top plate connection hole, 32-Bottom plate connection hole; 40-Concrete conveying pipeline; 50-HD camera system; 60- Thrust system.

Detailed ways

The following describes a device for monitoring the flow pattern of ultra-high pumping concrete provided by the present invention in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that, the accompanying drawings are all in a very simplified form and in inaccurate scales, and are only used to facilitate and clearly assist the purpose of explaining the embodiments of the present invention. For the convenience of description, the "upper" and "lower" described below are consistent with the upper and lower directions of the drawings, but this cannot be a limitation of the technical solution of the present invention.

Example 1

Referring to FIG. 1 , the structure and composition of the ultra-high pumping concrete flow pattern monitoring device of the present invention will be described in detail below with reference to FIG. 1 .

As shown in FIG. 1 , an ultra-high pumping concrete flow pattern monitoring device includes a concrete pumping simulation transparent pipeline 10 , a transparent box 20 and a concrete conveying pipeline 40 that are connected to each other, and also includes a high-definition camera system 50 and a thrust system 60 . ; Wherein, the transparent box 20 includes four foot supports 22 and a hollow transparent box body 21, the hollow transparent box body 21 is respectively provided with a top plate connecting hole 31 and a bottom plate connecting hole 32, the diameter of the top plate connecting hole 31 and the concrete pumping simulation transparent pipeline The diameter of the bottom plate 10 is matched with the diameter of the connecting hole 32 of the bottom plate and the diameter of the concrete conveying pipe 40. The thrust system 60 provides thrust for the conveying of concrete. Observe and record the flow pattern of concrete.

Specifically, under the action of the thrust system 60, the concrete enters the transparent box 20 through the concrete conveying pipeline 40 located at the lower end and fills it up, and the concrete in the transparent box 20 is transported to the concrete pumping simulation transparent pipeline 10 until it is close to the top, At the same time, the high-definition camera system 50 is used to observe and record the flow pattern of the whole process of the concrete pumping from the transparent box 20 into the concrete pumping simulating transparent pipe 10 and filling to the top thereof. Finally, by performing image processing on the photographic images obtained by the high-definition camera system 50, and fitting the flow shape curve of the concrete section, the flow shape of the concrete under the simulated pumping action can be analyzed, and it can be judged whether the lubricating layer actually exists during the conveying process or in what form. It exists in form and provides technical support for the research on the rheological properties of ultra-high pumping concrete.

Please continue to refer to Fig. 1, the monitoring steps of the ultra-high pumping concrete flow pattern of the present invention are as follows:

(1) Pour the concrete into the concrete conveying pipeline 40, start the thrust system 60, and transport the concrete to the transparent box 20 through the concrete conveying pipeline 40, until it is fully filled, and stop continuing to advance;

(2) starting the high-definition camera system 50;

(3) Start the thrust system 60 again, transport the concrete to the concrete pumping simulation transparent pipe 10, and stop and continue to advance until it is close to the top;

(4) Turn off the high-definition camera system 50, and clean the flow pattern monitoring device;

(5) Perform image processing on the photographic images obtained by the high-definition camera system, fit the flow shape curve of the concrete section, analyze the flow shape of the concrete under the action of simulated pumping, and determine whether the lubricating layer actually exists or in what form during the transportation process. , to provide technical support for the research on the rheological properties of ultra-high pumping concrete.

In this embodiment, more preferably, for the convenience of material acquisition and cost saving, the concrete pumping simulation transparent pipe 10 and the hollow transparent box 21 are both made of plexiglass or plastic.

In this embodiment, more preferably, in order to ensure that the concrete enters the hollow transparent box 21 through the concrete conveying pipeline 40 smoothly, the height of the four foot supports 22 is ≥0.5 meters.

In this embodiment, more preferably, in order to ensure the firmness of the connection between the pipeline and the box, the concrete pumping simulation transparent pipeline 10 and the connecting hole 31 of the top plate, and between the concrete conveying pipeline 40 and the connecting hole 32 of the bottom plate, pass the screw connection or snap connection.

The above-mentioned embodiments only represent several embodiments of the present utility model, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (5)

1. The ultrahigh pumping concrete flow form monitoring device is characterized by comprising a concrete pumping simulation transparent pipeline, a transparent box, a concrete conveying pipeline, a high-definition camera system and a thrust system, wherein the concrete pumping simulation transparent pipeline, the transparent box and the concrete conveying pipeline are communicated with each other; wherein,

the transparent box comprises four foot supports and a hollow transparent box body, the hollow transparent box body is respectively provided with a top plate connecting hole and a bottom plate connecting hole, the diameter of the top plate connecting hole is matched with that of the concrete pumping simulation transparent pipeline, the diameter of the bottom plate connecting hole is matched with that of the concrete conveying pipeline, the thrust system provides thrust for conveying of concrete, and the high-definition camera system is arranged in front of the concrete pumping simulation transparent pipeline and used for observing and recording the flowing form of the concrete.

2. The ultra-high pumping concrete flow form monitoring device of claim 1, wherein the concrete pumping analog transparent pipe is made of plexiglas or plastic.

3. The ultra-high pumpable concrete flow pattern monitoring device of claim 1, wherein the height of said four foot supports is greater than or equal to 0.5 m.

4. The ultra-high pumpable concrete flow configuration monitoring device of claim 1, wherein said concrete pumping analog transparent conduit is in threaded or snap-fit connection with said top plate connection hole and said concrete conveying conduit is in snap-fit connection with said bottom plate connection hole.

5. The ultra-high pumpable concrete flow form monitoring device of claim 1, wherein said hollow transparent tank is made of plexiglas or plastic.