Pipeline leak detection device for pipeline detection

Abstract

The utility model relates to the technical field of petrochemical pipeline leakage detection, and discloses a pipeline leakage detection device for pipeline detection, which comprises a lower sleeve, an upper sleeve is hinged to one side of the lower sleeve, clamping plates are fixedly connected to the two ends of the lower sleeve and the two ends of the upper sleeve, clamping grooves are formed in the multiple clamping plates in a penetrating mode, and the upper clamping groove and the lower clamping groove on the same side are used for being connected with the outer side of a pipeline in a sleeved mode. According to the utility model, the lower sleeve, the upper sleeve and the plurality of clamping plates are matched with each other, the lower sleeve and the upper sleeve can be clamped at the outer side of a pipeline to be subjected to leak detection, and then the lower sleeve and the upper sleeve are fixedly connected through the threaded bolt, so that the detected area of the leaked pipeline is completely located in the internal space formed by the lower sleeve and the upper sleeve, and the leak detection is convenient. When a tiny pipeline leakage phenomenon occurs, the tiny pipeline leakage phenomenon can be blocked in a space formed by the lower sleeve and the upper sleeve and can be timely detected by the first gas sensor or the second gas sensor which is installed inside.

Description

TECHNICAL FIELD

[0001] The utility model relates to petrochemical pipeline leak detection technical field especially relates to a pipeline leak detection device for pipeline detection. BACKGROUND

[0002] In the field of oil refining, there are a large number of oil pipelines, which are usually used to transport various corrosive media or gases required for chemical synthesis. Pipeline leak detection is an important industrial safety measure. To prevent pipeline leaks and cause safety accidents, regular pipeline detection and maintenance are required, especially for outdoor pipelines, which are more susceptible to corrosion from light, water and air.

[0003] Petrochemical pipeline leak detection generally uses gas leak detection instruments to detect the pipeline periphery. Once a leak occurs, the sensor can quickly and accurately detect gas leaks in the pipeline and provide early warning. However, for small gas leaks, the existing pipeline leak detection device is usually installed on one side of the pipeline. In an open space, if a small gas leak occurs from the other side, combined with the interference of air flow, the leaked gas may not be captured by the gas sensor installed on the pipeline leak detection device in time, resulting in low leak detection sensitivity and possibly missing the best opportunity for accident handling. Based on this, a pipeline leak detection device for pipeline detection is proposed. SUMMARY

[0004] To solve the technical problem of low sensitivity of outdoor pipeline leak detection devices, the utility model provides a pipeline leak detection device for pipeline detection.

[0005] The utility model adopts the following technical scheme to realize: a pipeline leak detection device for pipeline detection, including lower sleeve, the one side of lower sleeve is hinged with upper sleeve, the both ends of lower sleeve and upper sleeve all are fixedly connected with clamping plate, the clamping groove is all set up on multiple clamping plates, the upper and lower clamping grooves of same side are used for with pipeline outside sleeve joint, the side away from hinge of lower sleeve is set up with multiple screw holes, the side away from hinge of upper sleeve is provided with multiple threaded pegs, multiple screw holes and multiple threaded pegs are respectively one to one matched setting, the inside of lower sleeve is provided with instrument installation mechanism.

[0006] As a further improvement of the above-mentioned scheme, the instrument installation mechanism includes a lower recess groove opened on the upper side of the lower sleeve, the upper side of the lower recess groove is provided with a heightening plate, the bottom side of the lower recess groove is provided with an installation groove, and the inner side of the installation groove is provided with a storage battery unit.

[0007] As a further improvement of the above-mentioned scheme, the upper side of the heightening plate is provided with a control circuit board unit.

[0008] As a further improvement of the above-mentioned scheme, the upper side of the elevated plate is provided with a water collecting groove, and the bottom side of the water collecting groove is provided with a liquid leakage sensor unit.

[0009] As a further improvement of the above-mentioned scheme, the elevated plate is provided with a gas sensor on the side away from the control circuit board unit.

[0010] As a further improvement of the above-mentioned scheme, the upper sleeve is provided with an upper groove, and the bottom side of the upper groove is provided with a second gas sensor.

[0011] Compared with the prior art, the pipe leakage detection device has the advantages that:

[0012] 1. The lower sleeve, the upper sleeve and the plurality of clamping plates are cooperated to clamp the lower sleeve and the upper sleeve on the outside of the pipeline to be detected, and then the lower sleeve and the upper sleeve are fixedly connected through the threaded bolts, so that the leakage pipeline is completely located in the internal space formed by the lower sleeve and the upper sleeve, and when the pipeline has a slight leakage phenomenon, the leakage can be blocked in the space formed by the lower sleeve and the upper sleeve, and can be detected in time by the first gas sensor or the second gas sensor installed inside.

[0013] 2. The pipe leakage detection device has the advantages that the liquid leakage sensor unit and the first gas sensor are arranged on the elevated plate, and the second gas sensor is arranged on the inner side of the upper sleeve, so that the pipeline gas medium can be detected, and the liquid medium can also be detected, and the practicability is higher. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The pipe leakage detection device is provided with an overall structure schematic view of the pipe leakage detection device.

[0015] Figure 2 The pipe leakage detection device is provided with an overall structure schematic view of the pipe leakage detection device. Figure 1 The pipe leakage detection device is provided with an overall structure schematic view of the pipe leakage detection device.

[0016] Figure 3 The pipe leakage detection device is provided with an overall structure schematic view of the pipe leakage detection device. Figure 1

[0017] MAIN SYMBOL DESCRIPTION:

[0018] 1. Lower sleeve; 2. Upper sleeve; 3. Threaded hole; 4. Threaded bolt; 5. Clamping plate; 6. Clamping groove; 7. Lower groove; 8. Elevated plate; 9. First gas sensor; 10. Liquid leakage sensor unit; 11. Control circuit board unit; 12. Mounting groove; 13. Storage battery unit; 14. Upper groove; 15. Second gas sensor. DETAILED DESCRIPTION

[0019] ​The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0020] Example:

[0021] Please combine Figures 1-3 This embodiment of a pipe leak detection device includes a lower sleeve 1, an upper sleeve 2 hinged to one side of the lower sleeve 1, and clamping plates 5 fixedly connected to both ends of the lower sleeve 1 and the upper sleeve 2. Figure 1 As shown, both the lower sleeve 1 and the upper sleeve 2 are semi-cylindrical. Each of the four clamping plates 5 has a through groove 6. The upper and lower clamping grooves 6 on the same side are used to fit with the outside of the pipe. The outline of the groove 6 is adapted to the pipe size. The groove 6 is lined with a rubber pad, which has a certain toughness. The lower sleeve 1 has two threaded holes 3 on the side away from the hinge. The upper sleeve 2 has two threaded bolts 4 on the side away from the hinge. The two threaded holes 3 and multiple threaded bolts 4 are paired one by one. Through the threaded connection of the threaded bolts 4, the leak detection device can be quickly installed and removed from the pipe, making the leak detection work more convenient. The lower sleeve 1 has an instrument installation mechanism inside.

[0022] Please combine Figure 1 As shown, the instrument mounting mechanism includes a lower groove 7 opened on the upper side of the lower sleeve 1, an elevating plate 8 is provided on the upper side of the lower groove 7, the elevating plate 8 is detachably installed on the bottom side of the lower groove 7, an installation groove 12 is opened on the bottom side of the lower groove 7, and a storage battery unit 13 is installed inside the installation groove 12. The storage battery unit 13 supplies power to the electrical components of the leak detection device.

[0023] Please combine Figure 1 As shown, a control circuit board unit 11 is installed on the upper side of the raised platform 8.

[0024] Please combine Figure 1 As shown, a water collection groove is provided on the upper side of the raised plate 8, and a leakage sensor unit 10 is installed on the bottom side of the water collection groove. When the oil pipeline transporting liquid medium leaks, the liquid medium can be collected inside the water collection groove. The leakage sensor unit 10 forms a passage under the action of the liquid medium, detects the leakage signal, and generates a production early warning signal.

[0025] Please combine Figure 1 As shown, a first gas sensor 9 is installed on the side of the raised plate 8 away from the control circuit board unit 11. The first gas sensor 9 can be used to detect gas leaks with a density greater than air, and can detect them immediately. An upper groove 14 is provided on the upper sleeve 2, and a second gas sensor 15 is installed on the bottom side of the upper groove 14. The second gas sensor 15 is used to detect gas leaks with a density less than air.

[0026] The implementation principle of a pipeline leak detection device for pipeline inspection in this embodiment is as follows: For a pipeline that needs to be leak detected, the lower sleeve 1 and the upper sleeve 2 are placed on the outside of the pipeline. Then, the lower sleeve 1 and the upper sleeve 2 are fixedly connected by threaded bolt 4 and threaded hole 3. Then, the control circuit board unit 11 automatically controls the first gas sensor 9, the second gas sensor 15 and the leakage sensor unit 10 to monitor the leakage inside the lower sleeve 1 and the upper sleeve 2 in real time. The operator can push the leak detection device from the outside to move it to one side along the outer wall of the pipeline to expand the leakage detection area.

[0027] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A pipe leak detection device for pipe inspection, comprising a lower sleeve (1), characterized in that, The lower sleeve (1) is hinged to an upper sleeve (2) on one side. Both ends of the lower sleeve (1) and the upper sleeve (2) are fixedly connected to a retaining plate (5). A retaining groove (6) is opened through the multiple retaining plates (5). The upper and lower retaining grooves (6) on the same side are used to fit with the outside of the pipe. A plurality of threaded holes (3) are opened on the side of the lower sleeve (1) away from the hinge. A plurality of threaded bolts (4) are provided on the side of the upper sleeve (2) away from the hinge. The plurality of threaded holes (3) and the plurality of threaded bolts (4) are respectively paired one by one. An instrument mounting mechanism is provided inside the lower sleeve (1).

2. The pipe leak detection device for pipe inspection as described in claim 1, characterized in that, The instrument mounting mechanism includes a lower groove (7) opened on the upper side of the lower sleeve (1), a support plate (8) is provided on the upper side of the lower groove (7), and an installation groove (12) is opened on the bottom side of the lower groove (7). A storage battery unit (13) is installed on the inner side of the installation groove (12).

3. A pipe leak detection device for pipe inspection as described in claim 2, characterized in that, A control circuit board unit (11) is installed on the upper side of the raised platform (8).

4. A pipe leak detection device for pipe inspection as described in claim 2, characterized in that, The upper side of the raised plate (8) is provided with a water collection groove, and a leakage sensor unit (10) is installed on the bottom side of the water collection groove.

5. A pipe leak detection device for pipe inspection as described in claim 3, characterized in that, A gas sensor (9) is installed on the side of the raised plate (8) away from the control circuit board unit (11).

6. A pipe leak detection device for pipe inspection as described in claim 1, characterized in that, The upper sleeve (2) has an upper groove (14), and a second gas sensor (15) is installed on the bottom side of the upper groove (14).

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