CN116086727A - Device and method for detecting tightness of concrete pumping pipeline - Google Patents

Abstract

The invention discloses a device and a method for detecting the tightness of a concrete pumping pipeline, comprising the following steps: the device comprises advancing equipment, sealing equipment, air pressure detection equipment and pressurizing equipment, wherein the sealing equipment is arranged at two ends of the advancing equipment, when the advancing equipment moves, the sealing equipment is in a compressed state, when the advancing equipment moves to a detection position, the sealing equipment is inflated to form a sealing area, the pressurizing equipment and the air pressure detection equipment are used for pressurizing the sealing area and collecting air pressure values, the sealing performance detection of the whole pumping pipeline in a segmented mode is realized, the probability of concrete leakage or pump pipe blockage is reduced, the safety risk is reduced, liability disputes are avoided, and the detection result is more accurate. The detection result is judged by comparing the slope K of the linear equation with the standard slope K, so that the method has more statistical significance than that of directly comparing the air pressure value, avoids the possibility of error of data such as the air pressure value in the processes of acquisition, transmission and analysis, and further ensures the accuracy of the tightness detection result.

Description

A leak detection device and method for a concrete pumping pipeline

technical field

The invention relates to the technical field of pipeline detection, in particular to a leak detection device and method for a concrete pumping pipeline.

Background technique

More than 80% of concrete construction projects in our country are completed by concrete pumping construction. During the construction process, there are high requirements for the sealing of the pumping pipeline, but the concrete pumping pipeline is composed of several If the seal of the pump pipe connection is not good or the pump pipe is damaged, concrete leakage or pump pipe blockage may occur, and the pump pipe will rub against the concrete during the long-term pumping process. It will make the inner wall of the pump tube thinner and produce cracks, which requires testing the sealing of the cracks. If the sealing of the pump tube cannot meet the requirements, it will cause construction quality accidents and delay the construction period, so that the project cannot be completed within the specified time, resulting in resources. waste.

At present, there are some devices and methods for detecting the tightness of pipelines in the industry, but none of them can be applied to the complex working conditions of concrete pumping pipelines. The existing device and method for detecting pipeline tightness, inserts the detection device into the entrance of the pipeline to be tested to inflate and seal the pipeline entrance with airbags, and then judges the pipeline seal by comparing the values of the pressure detection sensors after adding two fluids respectively. goodness of sex. Although this method can accurately detect the tightness of the pipeline, it can only be limited to the entrance of the pipeline, and cannot enter the concrete pumping pipeline for long-distance detection, and this method is judged by manually comparing the values of the two pressure detection sensors Pipeline tightness, relative lack of accuracy, and less intelligence. There is an existing pipeline tightness positioning monitoring system and pipeline tightness detection method. This method continuously pressurizes the entire pipeline, and proposes a method of real-time monitoring of air pressure changes during the movement of the detection trolley in the pipeline to detect pipeline tightness. . Although this method is more accurate than the previous method, it cannot be applied to concrete pumping pipelines by pressurizing the entire pipeline. The continuous pressurization of the concrete pump pipe cannot meet the ideal pressurization requirements, which will affect the accuracy and be time-consuming and labor-intensive.

Therefore, how to detect the leakiness of the concrete pumping pipeline, reduce the probability of concrete leakage or pump pipe blockage, reduce safety risks and avoid liability disputes are technical problems to be solved urgently by those skilled in the art.

Contents of the invention

In view of this, the present invention provides a leak detection device and method for concrete pumping pipelines, which can accurately and efficiently detect the leakiness of concrete pumping pipelines, reduce the probability of concrete leakage or pump pipe clogging, reduce the Minor security risk.

The concrete technical scheme that the present invention adopts is as follows:

A leak detection device for concrete pumping pipelines, comprising: traveling equipment, sealing equipment, air pressure testing equipment and pressurizing equipment;

There are two groups of sealing devices, which are respectively fixedly installed at the front end and rear end of the traveling device; when the traveling device moves in the pumping pipeline, the sealing device is in a retracted state, and the traveling device moves to When the position is detected, the sealing device is inflated, and a sealing area is formed between the two sets of sealing devices;

The air pressure detection device and the pressurization device are arranged in the middle of the travel device, and when the sealing device is inflated, the air pressure detection device and the pressurization device are located in the sealing area.

Further, the sealing device includes a blocking air bag, a sealing air delivery tube and an air pump; the air pump is used to inflate the blocking air bag through the sealing air delivery tube.

Further, the pressurization equipment is connected with a pressurized air pipe, and the other end of the pressurized air pipe extends into the sealed area to pressurize the sealed area; the pressurized equipment and the The air pressure detection device is coupled and connected through an integrated circuit.

Further, the pressurizing device includes an electric pump or a pneumatic pump or an electromagnetic pump; the air pressure detection device includes an air pressure sensor or a piezoresistive air pressure sensor.

Further, the traveling equipment includes a pipe pumping robot or a pipe dredging machine or a pipe repair vehicle.

Further, it also includes: a remote terminal device and a data transmission device; the remote terminal device is set outside the pumping pipeline, the data transmission device is set on the traveling device, and the remote terminal device receives the data The detection data of the transmission equipment is used for risk judgment and data display and alarm according to the detection data.

Further, the remote terminal device and the data transmission device use wired communication for data transmission.

A method for detecting the tightness of a concrete pumping pipeline, using the above-mentioned tightness detection device, comprising:

S1. The moving equipment moves to the connection of the pumping pipeline or the crack risk point defined by the remote terminal equipment, and starts the sealing equipment to form a sealing area;

S2. Start the pressurizing device, pressurize the sealed area, and collect the air pressure value in the sealed area through the air pressure detection device, and the data transmission device transmits the air pressure value according to a preset time interval to remote terminal equipment;

S3. The remote terminal equipment fits the air pressure values into a linear equation of air pressure value and time according to the order of time, and obtains the slope k of the linear equation; and compares the slope k with the standard slope K, if the difference If the difference is not within the allowable range, the crack risk point will be marked on the display screen of the remote terminal device and an alarm signal will be issued;

S4. After the sealing test at the current position is completed, the blocking airbag deflates and shrinks, and the traveling device continues to move to the next testing position, and steps S1 to S3 are repeated until the testing of the entire pumping pipeline is completed.

Further, in step S2, the preset time interval is 1 second.

Further, in step S3, the standard slope K is obtained according to the pressurization linear equation of the pressurization equipment, and the allowable range of the difference is ±10%K.

Beneficial effect:

(1) A leak detection device for a concrete pumping pipeline, comprising: traveling equipment, sealing equipment, air pressure testing equipment and pressurizing equipment, the sealing equipment is arranged at both ends of the traveling equipment, and when the traveling equipment moves, the sealing The equipment is in a compressed state. When the traveling equipment moves to the detection position, the sealing equipment is inflated to form a sealing area, and then the sealing area is pressurized and the air pressure value is collected through the pressurization equipment and the air pressure detection equipment, which can realize the segmentation of the entire The pumping pipeline is tested for tightness to reduce the probability of concrete leakage or pump pipe blockage, reduce safety risks and avoid liability disputes, and the detection results are more accurate through segmented air pressure detection.

(2) In the process of leak detection, the collected air pressure data and time are fitted into a linear equation, and the detection result is judged by comparing the slope k of the linear equation with the standard slope K, compared to directly comparing the air pressure value In other words, it is more statistically significant, and the slope k can only be obtained through time accumulation. In this way, the airtightness test is judged based on the data within a period of time, instead of judging the result of the airtightness test by using the air pressure value at a certain moment alone. It avoids the possibility of accidental errors in the process of collecting, transmitting and analyzing data such as air pressure, and further ensures the accuracy of the sealing test results.

(3) The connection of the pumping pipeline or the crack risk point defined by the remote terminal equipment is used as the detection position, and the detection is performed one by one, instead of detecting every part of the pumping pipeline, which improves the detection efficiency.

Description of drawings

Fig. 1 is the structural representation of the leak detection device of concrete pumping pipeline of the present invention;

Among them, 1-pumping pipeline, 2-advancing equipment, 3-blocking air bag, 4-sealed air pipeline, 5-air pressure detection equipment, 6-pressurizing equipment, 7-inflator pump, 8-data transmission equipment, 9 - Remote terminal equipment.

Detailed ways

The invention provides a leak detection device and method for a concrete pumping pipeline, comprising: traveling equipment, sealing equipment, air pressure testing equipment and pressurizing equipment, the sealing equipment is set at both ends of the traveling equipment, At the same time, the sealing device is in a compressed state. When the traveling device moves to the detection position, the sealing device is inflated to form a sealing area, and then the sealing area is pressurized and the air pressure value is collected through the pressurization device and the air pressure detection device, which can realize segmentation The tightness test of the entire pumping pipeline can reduce the probability of concrete leakage or pump pipe blockage, reduce safety risks and avoid liability disputes, and through segmented air pressure testing, the test results are more accurate. In the process of leak detection, the collected air pressure data and time are fitted into a linear equation, and the slope k of the linear equation is compared with the standard slope K, which is more effective than directly comparing the air pressure value Statistical significance, and the slope k can only be obtained through time accumulation. In this way, the airtightness test is judged through the data within a period of time, instead of using the air pressure value at a certain moment alone to determine the airtightness test result, avoiding the air pressure value. The possibility of accidental errors in the process of data collection, transmission, and analysis further ensures the accuracy of the sealing test results.

The present invention will be described in detail below with reference to the accompanying drawings and examples.

An embodiment of the present invention provides a leak detection device for a concrete pumping pipeline. FIG. 1 is a schematic structural diagram of a leak detection device for a concrete pumping pipeline according to the present invention. As shown in FIG. 1 , it includes: traveling equipment 2 , sealing equipment, air pressure detection equipment 5 and pressurization equipment 6;

The number of sealing devices is two groups, which are fixedly installed on the front end and rear end of the traveling device 2 respectively; when the traveling device 2 moves in the pumping pipeline 1, the sealing device is in a shrinking state, and when the traveling device 2 moves to the detection position, the sealing device Inflated and expanded, a sealed area is formed between the two sets of sealing devices;

The air pressure detection device 5 and the pressurization device 6 are arranged in the middle of the traveling device, and when the sealing device is inflated, the air pressure detection device 5 and the pressurization device 6 are located in the sealing area.

In a specific embodiment, the sealing device includes a sealing air bag 3 , a sealing air delivery tube 4 and an air pump 7 ; the air pump 7 is used to inflate the sealing air bag 3 through the sealing air delivery tube 4 . As shown in FIG. 1 , it is the inflated and expanded state of the blocking air bag 3 .

In the actual implementation process, the sealing equipment is used to test the tightness of the pipeline. Among them, the conditions that may affect the tightness of the pipeline include: cracks in the pipeline, loose joints of the pipeline, and perforation of the pipeline.

In a specific embodiment, the pressurizing device 6 is connected with a pressurized air pipe, and the other end of the pressurized air pipe extends into the sealed area to pressurize the sealed area; the pressurized device 6 and the air pressure detection device 5 pass through IC coupling connection.

In a specific embodiment, the pressurizing device 6 includes an electric pump or a pneumatic pump or an electromagnetic pump; the air pressure detection device 5 includes an air pressure sensor or a piezoresistive air pressure sensor.

In a specific embodiment, the traveling equipment 2 includes a pipe pumping robot or a pipe dredging machine or a pipe repair vehicle.

In the actual implementation process, the form of traveling equipment 2 is not limited to the above three types, as long as it can carry other equipment and move in the pumping pipeline 1, any equipment can be used in the present invention.

In a specific embodiment, as shown in FIG. 1 , it also includes: a remote terminal device 9 and a data transmission device 8; the remote terminal device 9 is arranged outside the pumping pipeline 1, and the data transmission device 8 is arranged on the traveling device 2 , the remote terminal device 9 receives the detection data from the data transmission device 8, and performs risk judgment and data display and alarm according to the detection data.

In a specific embodiment, the remote terminal device 9 and the data transmission device 8 use wired communication for data transmission. In an actual implementation process, the communication mode between the remote terminal device 9 and the data transmission device 8 is not limited to the above-mentioned one, and data transmission may also be performed in other ways such as wireless. In an actual implementation process, the remote terminal device 9 may include a display screen for displaying detection data and image data.

The embodiment of the present invention also provides a method for detecting the airtightness of a concrete pumping pipeline, using the above-mentioned airtightness detection device, including:

S1. The traveling device 2 moves to the connection of the pumping pipeline 1 or the crack risk point defined by the remote terminal device 9, and starts the sealing device to form a sealing area;

In an actual implementation process, the crack risk point may also be a seam risk point or a perforation risk point.

S2. Start the pressurization device 6, pressurize the sealed area, and collect the air pressure value in the sealed area through the air pressure detection device 5, and the data transmission device 8 transmits the air pressure value to the remote terminal device 9 according to the preset time interval;

In a specific embodiment, in step S2, the preset time interval is 1 second.

S3. The remote terminal device 9 fits the air pressure values into a linear equation of air pressure value and time in chronological order, and obtains the slope k of the linear equation; and compares the slope k with the standard slope K, and if the difference is within the allowable range If the difference is not within the allowable range, the risk point of the crack will be marked on the display screen of the remote terminal device 9, and an alarm signal will be sent;

In a specific embodiment, in step S3, the standard slope K is obtained according to the pressurization linear equation of the pressurization device 6, and the allowable range of the difference is ±10%K.

S4. After completing the tightness test at the current position, the blocking air bag 3 deflates and shrinks, and the travel device 2 continues to move to the next test position, and steps S1 to S3 are repeated until the test of the entire pumping pipeline 1 is completed.

In the actual implementation process, before step S1 of the above detection method, it is necessary to prepare a traveling device that can travel in the pumping pipeline and is equipped with a tightness detection device, so that it can freely travel in the pumping pipeline .

To sum up, the embodiments of the present invention provide a leak detection device and method for concrete pumping pipelines, which are especially suitable for testing the leakiness of concrete pumping pipelines with a length of hundreds to thousands of meters, and the size of the traveling equipment is adopted. It can be changed, and it is more practical to be able to adjust the volume of the traveling equipment and other equipment according to the diameter change of the actual pumping pipeline. The airtightness detection device and method provided by the embodiments of the present invention are especially suitable for segmental detection of super-long concrete pumping pipelines formed by splicing multiple sections, and can perform one-by-one airtightness at joints or designated crack risk points Compared with the method of directly testing the entire pumping pipeline, the detection is more efficient, more accurate and more flexible.

The above specific embodiments only describe the design principle of the present invention, and the shapes and names of the components in the description may be different and are not limited. Therefore, those skilled in the field of the present invention can modify or equivalently replace the technical solutions recorded in the foregoing embodiments; and these modifications and replacements do not deviate from the inventive spirit and technical solutions of the present invention, and all should belong to the protection scope of the present invention.

Claims (10)

1. The utility model provides a leakproofness detection device of concrete pumping pipeline which characterized in that includes: a traveling device, a sealing device, an air pressure detecting device, and a pressurizing device;

the sealing devices are two groups and are respectively and fixedly arranged at the front end and the rear end of the travelling device; the sealing device is in a contracted state when the travelling device moves in the pumping pipeline, and the sealing device is inflated when the travelling device moves to a detection position, so that a sealing area is formed between the two groups of sealing devices;

the air pressure detecting device and the pressurizing device are arranged at the middle part of the travelling device, and the air pressure detecting device and the pressurizing device are positioned in the sealing area when the sealing device is inflated.

2. The apparatus of claim 1, wherein the sealing device comprises a blocking balloon, a sealing gas line, and an inflator;

the inflator pump is used for inflating the blocking air bag through the sealing air pipe.

3. The apparatus of claim 1, wherein the pressurizing device is connected to a pressurized gas conduit, the other end of the pressurized gas conduit extending into the sealing region to perform a pressurizing operation on the sealing region;

the pressurizing device and the air pressure detecting device are coupled and connected through an integrated circuit.

4. The apparatus of claim 1, wherein the pressurizing device comprises an electric or pneumatic or electromagnetic pump; the air pressure detection device comprises an air pressure sensor or a piezoresistive air pressure sensor.

5. The apparatus of claim 1, wherein the traveling device comprises a pump tube robot or a pipe dredge or a pipe repair vehicle.

6. The apparatus as recited in claim 1, further comprising: remote terminal equipment and data transmission equipment;

the remote terminal equipment is arranged outside the pumping pipeline, the data transmission equipment is arranged on the advancing equipment, the remote terminal equipment receives detection data of the data transmission equipment, risk judgment is carried out according to the detection data, and data display and alarm are carried out.

7. The apparatus of claim 1, wherein the remote terminal device and the data transmission device employ wired communication for data transmission.

8. A method for detecting tightness of a concrete pumping pipeline, characterized in that the tightness detection device according to any one of claims 1 to 7 is adopted, comprising:

s1, the travelling equipment moves to a joint of a pumping pipeline or a crack risk point defined by remote terminal equipment, and the sealing equipment is started to form a sealing area;

s2, starting the pressurizing equipment, pressurizing the sealed area, collecting the air pressure value in the sealed area through the air pressure detecting equipment, and transmitting the air pressure value to a remote terminal device through a data transmission device according to a preset time interval;

s3, the remote terminal equipment fits the air pressure values into a linear equation of the air pressure values and time according to time sequence, and obtains a slope k of the linear equation; comparing the slope K with a standard slope K, if the difference is within an allowable range, considering that the tightness is good, if the difference is not within the allowable range, marking crack risk points in a display screen of the remote terminal equipment, and sending out an alarm signal;

s4, after the tightness detection of the current position is completed, the plugging air bag is deflated and contracted, the advancing equipment continues to move to the next detection position, and the steps S1 to S3 are repeated until the detection of the whole pumping pipeline is completed.

9. The method of claim 8, wherein in step S2, the preset time interval is 1 second.

10. The method of claim 8, wherein in step S3, the standard slope K is obtained according to a pressurization linear equation of a pressurization device, and the allowable range of the difference is ±10%k.

Images