阅读说明：本技术 一种用于管道建内部检修的探测方法 (Detection method for internal maintenance of pipeline construction ) 是由 黄静 于 2021-07-14 设计创作，主要内容包括：本发明提供一种用于管道建内部检修的探测方法,该方法包括以下步骤：(1)对管道内进行注水,将管道内壁吸附的杂质进行排空,同时注意管道是否出现漏水堵塞的状况,如出现堵塞漏水状况则进行加压处理,加强水压确定漏水点,同时标记漏水点,将排出的水收集到污水净化池中；(2)在排空注水后,利用风干机对管道内部进行吹风,保证管道内的干燥,同时吹出一些杂质,在管道一端设置过滤网栏,杂质留在网上进行收集；(3)在干燥处理后对管道内部下摄像头,同时在管道的一端打开灯光照射,利用摄像头确定漏水点,同时与外部的标记点进行对应,最终确定漏水点；(4)确定漏水点后,利用合适的铁丝堵住,然后标记铁丝,同时测量漏水点空洞的直径。(The invention provides a detection method for overhauling the interior of a pipeline building, which comprises the following steps: (1) injecting water into the pipeline, emptying impurities adsorbed on the inner wall of the pipeline, paying attention to whether the pipeline is blocked by water leakage or not, pressurizing if the pipeline is blocked by water leakage, enhancing the water pressure to determine a water leakage point, marking the water leakage point, and collecting the discharged water into a sewage purification tank; (2) after emptying and injecting water, blowing air into the pipeline by using an air dryer to ensure the dryness in the pipeline and blow out some impurities, arranging a filter screen fence at one end of the pipeline, and collecting the impurities on the screen; (3) after drying treatment, turning on a light to irradiate one end of the pipeline, determining a water leakage point by using the camera, and simultaneously corresponding to an external mark point to finally determine the water leakage point; (4) and after the water leakage point is determined, plugging the water leakage point by using a proper iron wire, then marking the iron wire, and simultaneously measuring the diameter of the cavity of the water leakage point.)

1. A detection method for overhauling the interior of a pipeline building is characterized by comprising the following steps:

(1) injecting water into the pipeline, emptying impurities adsorbed on the inner wall of the pipeline, paying attention to whether the pipeline is blocked by water leakage or not, pressurizing if the pipeline is blocked by water leakage, enhancing the water pressure to determine a water leakage point, marking the water leakage point, and collecting the discharged water into a sewage purification tank;

(2) after emptying and injecting water, blowing air into the pipeline by using an air dryer to ensure the dryness in the pipeline and blow out some impurities, arranging a filter screen fence at one end of the pipeline, and collecting the impurities on the screen;

(3) after drying treatment, turning on a light to irradiate one end of the pipeline, determining a water leakage point by using the camera, and simultaneously corresponding to an external mark point to finally determine the water leakage point;

(4) after the water leakage point is determined, plugging the water leakage point by using a proper iron wire, then marking the iron wire, and simultaneously measuring the diameter of a cavity of the water leakage point;

(5) recording measurement data after the water leakage diameter is determined, and bringing the measurement data back to a laboratory;

(6) and the maintenance personnel carry out repair or maintenance according to the recorded data.

2. The detection method for overhauling the interior of the pipeline building according to claim 1, wherein the water injection pressure in the step (1) is between 4.2 and 6.4 MPa.

3. The detection method for the overhaul of the interior of the pipeline building according to claim 1, wherein the blowing time of the air dryer in the step (2) is 20 min.

4. The method as claimed in claim 1, wherein the diameter of the mesh of the filter net in the step (2) is 0.150 mm.

5. The method for detecting the overhaul of the interior of the pipeline building according to claim 1, wherein the step (3) is carried out by secondary marking after the water leakage point is determined, and the color of the marker pen is different.

6. The method for detecting the internal overhaul of the pipeline building according to claim 1, wherein the color of the marking iron wire in the step (4) is different from the color of the marking point.

Technical Field

The invention relates to the technical field of pipeline detection and maintenance, in particular to a detection method for pipeline construction internal maintenance.

Background

A pipeline is a device for transporting a gas, liquid or fluid with solid particles, connected by pipes, pipe couplings, valves, etc. Generally, a fluid is pressurized by a blower, a compressor, a pump, a boiler, etc., and then flows from a high pressure portion to a low pressure portion of a pipe, or is transported by the pressure or gravity of the fluid itself. The use of pipelines is very widespread, mainly in water supply, drainage, heating, gas supply, long-distance oil and gas delivery, agricultural irrigation, hydraulic engineering and various industrial installations. The pipeline is relatively common in industrial medium conveying, and for the sake of insurance after pipeline production, the detection before leaving the factory is usually required to avoid problems, and a general detection method is a mode of directly adopting a detector, and because some pipelines are attached by impurities, leak holes are blocked, and the detection is inaccurate.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a detection method for the internal overhaul of pipeline construction, which solves the problems in the background art.

In order to achieve the aim of the invention, the invention adopts the specific scheme that:

a detection method for overhauling the interior of a pipeline building comprises the following steps:

(1) injecting water into the pipeline, emptying impurities adsorbed on the inner wall of the pipeline, paying attention to whether the pipeline is blocked by water leakage or not, pressurizing if the pipeline is blocked by water leakage, enhancing the water pressure to determine a water leakage point, marking the water leakage point, and collecting the discharged water into a sewage purification tank;

(2) after emptying and injecting water, blowing air into the pipeline by using an air dryer to ensure the dryness in the pipeline and blow out some impurities, arranging a filter screen fence at one end of the pipeline, and collecting the impurities on the screen;

(3) after drying treatment, turning on a light to irradiate one end of the pipeline, determining a water leakage point by using the camera, and simultaneously corresponding to an external mark point to finally determine the water leakage point;

(4) after the water leakage point is determined, plugging the water leakage point by using a proper iron wire, then marking the iron wire, and simultaneously measuring the diameter of a cavity of the water leakage point;

(5) recording measurement data after the water leakage diameter is determined, and bringing the measurement data back to a laboratory;

(6) and the maintenance personnel carry out repair or maintenance according to the recorded data.

In a further description of the invention, the water injection pressure in the step (1) is between 4.2 and 6.4 MPa.

In a further description of the present invention, the air blowing time of the air dryer in the step (2) is 20 min.

As a further description of the present invention, the mesh diameter of the filter screen in the step (2) is 0.150 mm.

In a further description of the present invention, the marking is performed twice after the water leakage point is determined in step (3), and the color of the marker pen is different.

In a further description of the present invention, in the step (4), the color of the marked iron wire is different from the color of the marked point.

The invention has the beneficial effects that:

1. the problem of utilize the detector inaccurate when the pipeline is surveyed and is overhauld is solved, the influence that the pipeline blockked up and bring is avoided.

2. The problem of inaccurate spot leakage determination during detection of the pipeline is solved, and the design of combining fixed-point marking and internal and external determination is convenient and accurate.

3. The overall working efficiency is improved, and the quality of the pipeline output is improved.

Detailed Description

The present invention is further described below by way of specific examples, but the present invention is not limited to only the following examples. Variations, combinations, or substitutions of the invention, which are within the scope of the invention or the spirit, scope of the invention, will be apparent to those of skill in the art and are within the scope of the invention.

Example 1:

a detection method for overhauling the interior of a pipeline building comprises the following steps:

(1) injecting water into the pipeline, emptying impurities adsorbed on the inner wall of the pipeline, paying attention to whether the pipeline is blocked by water leakage or not, pressurizing if the pipeline is blocked by water leakage, enhancing the water pressure to determine a water leakage point, enabling the water injection pressure to be 4.2Mpa, marking the water leakage point, and collecting the discharged water into a sewage purification tank;

(2) after emptying and injecting water, blowing air into the pipeline by using an air dryer for 20min to ensure the drying in the pipeline and blow off some impurities, arranging a filter screen fence at one end of the pipeline, wherein the diameter of a mesh is 0.150mm, and collecting the impurities on the screen;

(3) after drying, turning on a light to irradiate one end of the pipeline, determining a water leakage point by using the camera, and simultaneously corresponding to an external mark point, finally determining the water leakage point, and carrying out secondary marking, wherein the marker pens are different in color;

(4) after the water leakage point is determined, plugging the water leakage point by using a proper iron wire, then marking the iron wire, and simultaneously measuring the diameter of a cavity of the water leakage point, wherein the color of the marked iron wire is different from that of the marked point;

(5) recording measurement data after the water leakage diameter is determined, and bringing the measurement data back to a laboratory;

(6) and the maintenance personnel carry out repair or maintenance according to the recorded data.

Example 2:

a detection method for overhauling the interior of a pipeline building comprises the following steps:

(1) injecting water into the pipeline, emptying impurities adsorbed on the inner wall of the pipeline, paying attention to whether the pipeline is blocked by water leakage or not, pressurizing if the pipeline is blocked by water leakage, enhancing the water pressure to determine a water leakage point, enabling the water injection pressure to be 6.4Mpa, marking the water leakage point, and collecting the discharged water into a sewage purification tank;

(2) after emptying and injecting water, blowing air into the pipeline by using an air dryer for 20min to ensure the drying in the pipeline and blow off some impurities, arranging a filter screen fence at one end of the pipeline, wherein the diameter of a mesh is 0.150mm, and collecting the impurities on the screen;

(3) after drying, turning on a light to irradiate one end of the pipeline, determining a water leakage point by using the camera, and simultaneously corresponding to an external mark point, finally determining the water leakage point, and carrying out secondary marking, wherein the marker pens are different in color;

(4) after the water leakage point is determined, plugging the water leakage point by using a proper iron wire, then marking the iron wire, and simultaneously measuring the diameter of a cavity of the water leakage point, wherein the color of the marked iron wire is different from that of the marked point;

(5) recording measurement data after the water leakage diameter is determined, and bringing the measurement data back to a laboratory;

(6) and the maintenance personnel carry out repair or maintenance according to the recorded data.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on general orientations or positional relationships, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The invention is not limited to the above embodiments, but rather should be construed as broadly as the invention can be embodied in various forms without departing from the spirit or essential characteristics thereof.