CN206638188U - The device of detecting shaft chamber interior drainage pipeline in the case of a kind of water level is higher - Google Patents

Abstract

The utility model provide a kind of water level it is higher in the case of detecting shaft chamber interior drainage pipeline device, including support (1), the sonar cylinder (2) for from top to bottom using steel wire rope (3) to connect, the sonar cylinder (2) is connected by cable (4) with cable disc (5), the cable disc (5) shows that the report control platform (6) of sonar image is connected with being used for, and the report control platform (6) electrically connects with power supply (7).It need not be manually entered in well, you can solve the problems, such as ponding depth and be difficult to accurately ascertain the data such as draining pipe size, buried depth inside the relatively deep larger inspection shaft in well room.

Description

A device for detecting the drainage pipe inside the well chamber under the condition of high water level

technical field

The utility model belongs to the technical field of pipeline detection, and in particular relates to a device for detecting drainage pipes inside a well chamber when the water level is high, which can detect larger and deeper wells without manually entering the well when the water level of the drainage pipe is high. drainage pipes.

Background technique

In the detection process of underground pipelines, rainwater and sewage pipelines account for more than 40% of underground pipelines, especially the specific size of main pipes, which is a key data, which has a great impact on later reconstruction design and maintenance.

In the detection process of the drainage pipe network, common L-shaped measuring rods are commonly used in the industry. For the inspection wells with large rainwater and sewage inspection wells, due to the angle problem, the drainage pipes in the inspection well wall cannot be touched at the same time. The upper and lower walls of the (culvert) cannot effectively ascertain the pipe diameter and buried depth of the drainage pipe (culvert).

For larger wells, when there is no water, CCTV and other video camera methods can be used to determine the pipe diameter and other parameters. However, due to the limitation of underground space, most drainage pipes are getting deeper and higher, and the operating water level is getting higher and higher. The pipe size can be measured by divers going down the well.

According to engineering experience, divers have limited time to go down the well, and there are safety risks, and basically they can only rely on the sense of touch, and the accuracy of the measured pipe diameter and buried depth data is poor.

Utility model content

In view of this, the utility model provides a measuring device for detecting the drainage pipe inside the well chamber when the water level is high, which solves the problem that the drainage pipe (culvert) cannot be accurately identified inside the inspection well with deep water accumulation and a deep and large well chamber. ) size, buried depth and other data issues.

The utility model provides a device for detecting the drainage pipe inside the well chamber under the condition of high water level, which comprises a bracket connected by a steel wire rope from top to bottom, a sonar tube, and the sonar tube includes a sonar probe and a sonar probe outside The sonar tube is connected to the cable reel through cables, the cable reel is connected to the control platform for displaying sonar images, and the control platform is electrically connected to the power supply.

Preferably, a pulley is provided at the top of the bracket, and the steel wire rope is wound on the pulley.

Further preferably, the bracket includes four support rods, and the top ends of the support rods are all connected with the pulleys.

Preferably, a counterweight is provided at the bottom of the sonar tube.

Further preferably, the weight of the counterweight is 5kg.

The beneficial effects of the utility model are:

1. It can find out the pipe diameter and buried depth of the drainage pipes inside all wells with deep water accumulation, and the data is more reliable and accurate than conventional detection methods.

2. There is no need for divers to go down the well, and the safety risk is low.

3. It can quickly find out the pipe diameter, which saves 80% of the time compared with divers going down to measure the pipe diameter, and improves the efficiency.

4. At the same time, it can effectively detect the well chamber size of the inspection well.

Description of drawings

Fig. 1 is the schematic diagram of the detection device of the drainage pipeline inside the well chamber described in the utility model;

Figure 2 is a schematic diagram of imaging of the manipulation platform;

Among them, 1 is the bracket, 2 is the sonar tube, 3 is the steel wire rope, 4 is the cable, 5 is the cable reel, 6 is the control platform, 7 is the power supply, 8 is the pulley, 9 is the counterweight, 10 is the shaft, 11 is the outer contour imaging of the inspection well, and 12 is the drainage pipe imaging.

detailed description

The detection device and detection method for the drainage pipe inside the well chamber provided by the utility model will be further described below in combination with specific embodiments.

A kind of device that detects the internal drainage pipeline of well chamber under the high situation of water level, as accompanying drawing 1, comprises support 1, sonar tube 2 connected with wire rope 3 from top to bottom, and described sonar tube 2 comprises sonar probe and The protective device on the outside of the sonar probe, specifically, the protective device is a protective tube that can accommodate the sonar probe inside, to protect the sonar probe from a free fall of 5 meters, and to facilitate the counterweight. The bottom end of the sonar tube 2 is provided with a counterweight 9 with a weight of 5 kg, and the counterweight 9 is connected to the sonar tube 2 through a wire rope. The top of the support 1 is provided with a pulley 8, and the steel wire rope 3 is wound on the pulley 8. Specifically, the support 1 includes four support rods, and the top ends of the support rods are all connected to the pulley 8.

The sonar tube 2 is connected to the cable reel 5 through the cable 4, specifically, the top of the sonar tube 2 is connected to the cable 4 through a screw, and there is a standard cable for signal transmission in the screw. line port.

The cable 4 is connected to the cable reel 5, and the advancing length of the cable is controlled by the rotation of the cable reel 5, and the counter of the cable reel can accurately control the advancing length of the cable.

The cable reel 5 is electrically connected to the control platform 6 for displaying sonar images through a standard data line, and the sonar images are observed in real time through the control platform, and the control platform 6 is electrically connected to the power supply 7 .

The method for detecting the drainage pipe inside the well with deep water accumulation by using the above-mentioned drainage pipe detection device inside the well chamber mainly includes the following steps:

S1. Fix the bracket above the wellbore, place the sonar tube below the water surface in the well, and control the vertical descent of the sonar tube through the pulling of the wire rope and the shaking of the cable reel at a speed of 0.05-0.1m/s;

S2. Observe the sonar image of the sonar control platform. When the drainage pipe image appears in the outer contour of the inspection well, adjust the descending speed of the sonar tube to 0-0.05m/s;

S3. When the image of the drainage pipe changes from small to large, and then gradually becomes smaller again, the sonar tube stops moving forward; adjust the position of the sonar tube by lifting and lowering it, and stop adjusting the position of the sonar tube when the image of the drain pipe is at its maximum; read the image on the control platform The size of the frame is the inner size of the well, the imaging size of the drainage pipe is the size of the drainage pipe, and the total length of the cable line is the buried depth of the center of the pipe.

Specifically, the detailed steps of the detection process are as follows:

1. Prepare for detection, open the manhole cover for ventilation, and take safety protection measures.

2. Connect the sonar tube 2 and the counterweight 9 through a steel wire rope, and give the sonar tube 2 a counterweight, and the counterweight is about 5kg.

3. Connect the cable 4 and the sonar tube 2 through the screw, and there is a standard cable port in the screw for signal transmission.

4. Connect the cable 4 to the cable reel 5, and control the cable 4 through the rotation of the cable reel 5, and the counter of the cable reel 5 can control the exact length of the cable 4.

5. Connect the cable reel 5 and the control platform 6 through a standard data cable conversion interface, and use the control platform 6 to observe the sonar image in real time.

6. Connect the control platform 6 to the power supply 7, power on the control platform 6, and perform instrument debugging.

7. Connect the sonar tube 2 and the wire rope 3 with a wire rope buckle.

8. Fix the pulley 8 on the top of the bracket 1, fix the bracket 1 directly above the shaft 10, and wrap the wire rope 3 around the pulley 8.

9. Turn on the switches of all instruments and equipment, put the sonar tube 2 into the well, and control the traveling speed of the sonar tube 2 to be no more than 0.1 meters per second after being submerged below the water surface through the pulling of the wire rope 3 and the shaking of the cable reel 5. Seconds, the sonar tube 2 is vertically and slowly put into the inspection well.

10. Observe the sonar image of the sonar control platform 6. When there is a gap in the outer contour imaging 11 of the inspection well, slow down the speed of the sonar tube and drop it to within 0.05 m/s. The gap is the drainage pipe image 12;

11. When the gap on the screen changes from small to large, and then gradually becomes smaller again, the sonar tube 2 stops moving forward, slowly lifts the sonar tube 2, finds the image when the gap is the largest, and the sonar tube 2 stops moving forward;

12. Pull the cable 4 to be perpendicular to the wellhead of the inspection well, mark the position of the wellhead, measure the length of the cable outside the inspection well (marked to the cable reel), read the total length of the cable, and calculate the center of the pipeline Buried deep.

13. Use the measuring tool on the screen of the sonar control software to measure the specific size of the gap. As shown in Figure 2, when the gap represented by 12 is the largest, the width of the gap measured on the image is the diameter of the drainage pipe; At the same time, measure the size of the outer frame of the image, which is the inner size of the inspection well.

14. Continue to control the sonar tube 2 to descend to the bottom of the well, find the diameters of all connected drainage pipes, and measure the bottom elevation.

The above-mentioned device and detection method for detecting the drainage pipe inside the well chamber under the condition of high water level can detect the drainage pipe in the larger and deeper well chamber without manual entry into the well when the water level of the drainage pipe is running at a high level, so as to solve the problem of deep water accumulation and In the interior of the inspection well with a deep and large well chamber, it is impossible to accurately find out the size and depth of the drainage pipe (culvert) and other data.

It can be understood that, for those skilled in the art, various other corresponding changes and deformations can be made according to the technical concept of the present utility model, and all these changes and deformations should belong to the protection of the claims of the present utility model. scope.

Claims (5)

1. A device for detecting the internal drainage pipeline in the well under the relatively high situation of a water level is characterized in that: it comprises a support (1) connected with a wire rope (3) from top to bottom, a sonar tube (2), and the sonar The tube (2) includes a sonar probe and a protective device outside the sonar probe, and the sonar tube (2) is connected to the cable reel (5) through a cable (4), and the cable reel (5) is connected to the The control platform (6) of the sonar image is connected, and the control platform (6) is electrically connected with the power supply (7). 2. The device for detecting the drainage pipe inside the well chamber when the water level is high according to claim 1, characterized in that: a pulley (8) is arranged on the top of the support (1), and the wire rope (3) is looped around the pulley (8) up. 3. The device for detecting the drainage pipe inside the well chamber when the water level is high according to claim 2, characterized in that: the support (1) includes four support rods, and the top ends of the support rods are connected with the pulley (8) connected. 4. The device for detecting the drainage pipe inside the well chamber when the water level is high according to claim 1, characterized in that: the bottom end of the sonar tube (2) is provided with a counterweight (9). 5. The device for detecting the drainage pipe inside the well chamber when the water level is high according to claim 4, characterized in that: the weight of the counterweight (9) is 5 kg.