Portable potential detection device for ocean platform steel structure

Abstract

The utility model discloses a portable potential detection device for a steel structure of an ocean platform. Comprising a cable reel, the center of the cable reel is provided with a driving reel, a detection signal cable is wound on the driving reel, and the starting end of the detection signal cable is fixedly connected with the driving reel; the driver is arranged on the outer side of the cable reel and connected with the driving reel; the signal sensor is arranged at the tail end of the detection signal cable and is electrically connected with the detection signal cable; the intelligent controller is arranged on the outer side of the cable reel and located above the driver; one end of the loop signal cable is electrically connected with the intelligent controller, and the other end of the loop signal cable is connected with the ocean platform steel structure. The ocean platform steel structure potential detection device has the advantages of being capable of detecting potentials of different depths of an ocean platform steel structure, simple in operation, low in operation risk and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore oil engineering, in particular to a portable potential detection device for an offshore platform steel structure. Background Art

[0002] Potential is the key judgment and evaluation parameter for whether the cathodic protection of marine steel structures is in place. Marine steel structures are considered to be well protected only when the protection potential reaches the range required by the standard. According to incomplete statistics, the current protection potential of steel structures in seawater of about 70% of offshore oil and gas field platforms is basically detected through diving operations, with a detection cycle of about 5 years. The detection cost is high, the risk is high, and the cycle is long. It is impossible to detect and evaluate the protection status of marine steel structures at a low risk and low cost in a short period of time as required.

[0003] Therefore, a method with low risk, low cost and short cycle for detecting the protective potential of marine steel structures is needed to make up for the shortcomings of existing detection technology. Utility Model Content

[0004] The purpose of the utility model is to provide a portable detection device for the potential of an offshore platform steel structure, which is equipped with a cable reel, a driver, a signal sensor, an intelligent controller and a loop signal cable, and can detect the potential of the offshore platform steel structure at different depths, with simple operation, low operation risk and low cost.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions, including:

[0006] A cable reel, the center of which is provided with a driving reel, a detection signal cable is wound on the driving reel, and a starting end of the detection signal cable is fixedly connected to the driving reel;

[0007] A driver, which is arranged outside the cable reel and connected to the driving reel, and is used to output a rotational force to drive the driving reel to rotate, thereby controlling the retraction and extension of the detection signal cable;

[0008] A signal sensor, which is arranged at the end of the detection signal cable and is electrically connected to the detection signal cable, and is used to rise and fall under the drive of the detection signal cable to detect the depth and potential of the location;

[0009] An intelligent controller, which is arranged outside the cable reel and above the driver, and is electrically connected to the detection signal cable and the driver, and is used to receive an electrical signal from the detection signal cable and control the driver;

[0010] A loop signal cable has one end electrically connected to the intelligent controller and the other end connected to the offshore platform steel structure.

[0011] Preferably, it also includes:

[0012] A fixing device is arranged above the cable reel and is used for fixing the cable reel on the offshore platform.

[0013] Preferably, the fixing device comprises:

[0014] A fixing plate, which is vertically arranged on the upper edge of the cable reel, and two pairs of fixing holes are arranged on the fixing plate, and the two pairs of fixing holes are arranged orthogonally;

[0015] A U-shaped fixing tube is arranged on the back of the fixing plate; both ends of the U-shaped fixing tube can be selectively inserted into the pair of fixing holes and are detachably connected to the fixing plate.

[0016] Preferably, it also includes:

[0017] A guide tube is arranged at the cable outlet of the cable reel and extends downward, and is used for leading out the detection signal cable.

[0018] Preferably, the intelligent controller comprises:

[0019] A data acquisition instrument and an acquisition controller are arranged inside the intelligent controller, and the data acquisition instrument is electrically connected to the acquisition controller; the data acquisition instrument is used to acquire depth and potential data from the signal sensor, and the acquisition controller is used to control the driver according to the depth and potential data;

[0020] A digital display screen, which is arranged on the end surface of the intelligent controller and is used to display data information;

[0021] A control panel is arranged below the digital display screen and is used for inputting control instructions.

[0022] Preferably, the signal sensor is composed of a depth sensor and a potential sensor in an integrated package.

[0023] Preferably, the driver is an electromagnetic driver.

[0024] Preferably, the potential detection accuracy of the intelligent controller is not less than 1 mV, and the depth detection accuracy is not less than 0.1 m.

[0025] The beneficial effects of the utility model are as follows: the cable reel, driver, signal sensor, intelligent controller and loop signal cable are provided, and the potential of the steel structure of the offshore platform at different depths can be detected, the operation is simple, the operation risk is low and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1It is a stereoscopic diagram of a portable detection device for electric potential of an offshore platform steel structure according to the utility model.

[0027] Figure 2 The utility model is a schematic diagram of a portable potential detection device for an offshore platform steel structure. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement it according to the description.

[0029] It should be understood that terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or other elements or combinations thereof.

[0030] like Figure 1-2 As shown, the utility model is a portable detection device 1 for the electric potential of an offshore platform steel structure, comprising:

[0031] A driving reel is provided at the center of the cable reel 110, on which a detection signal cable 111 is wound, and the starting end of the detection signal cable 111 is fixedly connected to the driving reel. As a preferred embodiment, it also includes: a guide tube 112, which is provided at the outlet of the cable reel 110 and extends downward, and is used to lead out the detection signal cable 111.

[0032] The driver 120 is disposed outside the cable reel 110 and connected to the driving reel. The driver 120 is used to output rotational power to drive the driving reel to rotate, thereby controlling the retraction and extension of the detection signal cable 111. As a preferred embodiment, the driver 120 is an electromagnetic driver.

[0033] The signal sensor 130 is arranged at the end of the detection signal cable 111 and is electrically connected to the detection signal cable 111. The signal sensor 130 is used to rise and fall under the drive of the detection signal cable to detect the depth and potential of the location. As a preferred embodiment, the signal sensor 130 is composed of an integrated packaged depth sensor 131 and a potential sensor 132.

[0034] The intelligent controller 140 is arranged outside the cable reel 110 and above the driver 120. The intelligent controller 140 is electrically connected to the detection signal cable 111 and the driver 120, and is used to receive the electrical signal from the detection signal cable and control the driver. As a preferred embodiment, the intelligent controller 140 includes: a data acquisition instrument 141 and an acquisition controller 143 are arranged inside the intelligent controller 140, and the data acquisition instrument 141 is electrically connected to the acquisition controller 142; the data acquisition instrument 141 is used to collect the depth and potential data from the signal sensor 130, and the acquisition controller 142 is used to control the driver 120 according to the depth and potential data. The digital display screen 143 is arranged on the end face of the intelligent controller 140 for displaying data information; the control panel 144 is arranged below the digital display screen 143 for inputting control instructions. As a further preferred embodiment, the potential detection accuracy of the intelligent controller 140 is not less than 1mV, and the depth detection accuracy is not less than 0.1m.

[0035] One end of the loop signal cable 150 is electrically connected to the intelligent controller 140 , and the other end is connected to the offshore platform steel structure.

[0036] As a preferred embodiment, it further includes: a fixing device 160 is arranged above the cable reel 110, and is used to fix the cable reel 110 on the offshore platform. As a further preferred embodiment, the fixing device 160 includes: a fixing plate 161 vertically arranged on the upper edge of the cable reel, and two pairs of fixing holes 162 are arranged on the fixing plate, and the two pairs of fixing holes 162 are arranged orthogonally; a U-shaped fixing tube 163, which is arranged on the back of the fixing plate 161; the two ends of the U-shaped fixing tube 163 can be selectively inserted into the pair of fixing holes 162, and are detachably connected to the fixing plate 161.

[0037] During use, the portable detection device 1 for the potential of the steel structure of the offshore platform is first fixed on the offshore platform by the fixing device 160, and the loop signal cable 150 is connected to the offshore platform. Then, the depth value to be detected is input into the intelligent controller 140 through the control panel 144, and the intelligent controller 140 instructs the driver 120 to drive the driving reel to rotate, and continuously lowers the signal sensor 130. The signal sensor 130 feeds back the detected depth value to the intelligent controller, stops lowering after being lowered to the depth to be measured, and automatically carries out potential data collection and storage. The control panel 144 can also be used to control the signal sensor 130 to be lowered. After the detection is completed, the intelligent controller 140 instructs the driver 120 to drive the driving reel to reverse and recycle the signal sensor 130.

[0038] In another embodiment, it further includes: a fixing device 160 is disposed above the cable reel 110 for fixing the cable reel 110 on the offshore platform.

[0039] In another embodiment, the fixing device 160 includes: a fixing plate 161 vertically arranged on the upper edge of the cable reel, and two pairs of fixing holes 162 are arranged on the fixing plate, and the two pairs of fixing holes 162 are arranged orthogonally; a U-shaped fixing tube 163, which is arranged on the back of the fixing plate 161; the two ends of the U-shaped fixing tube 163 can be selectively inserted into the pair of fixing holes 162, and are detachably connected to the fixing plate 161. As a further preferred embodiment, a thread is arranged at the end of the U-shaped fixing tube 163, and is detachably connected to the fixing plate 161 through a nut.

[0040] In another embodiment, it further includes: a guide tube 112 , which is disposed at the cable outlet of the cable reel 110 and extends downward, and is used to lead out the detection signal cable 111 .

[0041] In another embodiment, the intelligent controller 140 includes: a data acquisition instrument 141 and an acquisition controller 143 are arranged inside the intelligent controller 140, and the data acquisition instrument 141 is electrically connected to the acquisition controller 142; the data acquisition instrument 141 is used to collect depth and potential data from the signal sensor 130, and the acquisition controller 142 is used to control the driver 120 according to the depth and potential data. A digital display screen 143 is arranged on the end face of the intelligent controller 140 for displaying data information; a control panel 144 is arranged below the digital display screen 143 for inputting control instructions.

[0042] In another embodiment, the signal sensor 130 is composed of a depth sensor 131 and a potential sensor 132 which are integrated into a package.

[0043] In another embodiment, the driver 120 is an electromagnetic driver.

[0044] In another embodiment, the potential detection accuracy of the intelligent controller 140 is not less than 1 mV, and the depth detection accuracy is not less than 0.1 m.

[0045] In summary, the utility model is a portable detection device 1 for the potential of an offshore platform steel structure, which is provided with a cable reel 110, a driver 120, a signal sensor 130, an intelligent controller 140 and a loop signal cable 150. It can detect the potential of the offshore platform steel structure at different depths, and has simple operation, low operation risk and low cost.

[0046] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A portable detection device for potential of offshore platform steel structure, characterized in that: include: A cable reel, the center of which is provided with a driving reel, a detection signal cable is wound on the driving reel, and a starting end of the detection signal cable is fixedly connected to the driving reel; A driver, which is arranged outside the cable reel and connected to the driving reel, and is used to output a rotational force to drive the driving reel to rotate, thereby controlling the retraction and extension of the detection signal cable; A signal sensor, which is arranged at the end of the detection signal cable and is electrically connected to the detection signal cable, and is used to rise and fall under the drive of the detection signal cable to detect the depth and potential of the location; An intelligent controller, which is arranged outside the cable reel and above the driver, and is electrically connected to the detection signal cable and the driver, and is used to receive an electrical signal from the detection signal cable and control the driver; A loop signal cable has one end electrically connected to the intelligent controller and the other end connected to the offshore platform steel structure.

2. The portable detection device for potential of offshore platform steel structure according to claim 1 is characterized in that: Also includes: A fixing device is arranged above the cable reel and is used for fixing the cable reel on the offshore platform.

3. The portable detection device for potential of offshore platform steel structure according to claim 2 is characterized in that: The fixing device comprises: A fixing plate, which is vertically arranged on the upper edge of the cable reel, and two pairs of fixing holes are arranged on the fixing plate, and the two pairs of fixing holes are arranged orthogonally; A U-shaped fixing tube is arranged on the back of the fixing plate; both ends of the U-shaped fixing tube can be selectively inserted into the pair of fixing holes and are detachably connected to the fixing plate.

4. The portable detection device for potential of offshore platform steel structure according to claim 1 is characterized in that: Also includes: A guide tube is arranged at the cable outlet of the cable reel and extends downward, and is used for leading out the detection signal cable.

5. The portable detection device for potential of offshore platform steel structure according to claim 1 is characterized in that: The intelligent controller comprises: A data acquisition instrument and an acquisition controller are arranged inside the intelligent controller, and the data acquisition instrument is electrically connected to the acquisition controller; the data acquisition instrument is used to acquire depth and potential data from the signal sensor, and the acquisition controller is used to control the driver according to the depth and potential data; A digital display screen, which is arranged on the end surface of the intelligent controller and is used to display data information; A control panel is arranged below the digital display screen and is used for inputting control instructions.

6. The portable detection device for electric potential of offshore platform steel structure according to claim 1 is characterized by: The signal sensor is composed of a depth sensor and a potential sensor which are integrated into a package.

7. The portable detection device for electric potential of offshore platform steel structure according to claim 1 is characterized by: The driver is an electromagnetic driver.

8. The portable detection device for electric potential of offshore platform steel structure according to claim 5 is characterized by: The potential detection accuracy of the intelligent controller is not less than 1mV, and the depth detection accuracy is not less than 0.1m.

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