Auxiliary tool for scanning and detecting refinery pipe fittings

Abstract

The utility model relates to an auxiliary tool for scanning and detecting refinery pipe fittings, which comprises a placement box, the placement box is a cube with an upper opening, the top of the placement box is open and is provided with a separable cover plate, and a cable gland, namely a cable fixing head, is arranged on the right side of the placement box and is mainly used for fastening and sealing a cable; a replaceable bottom support is detachably arranged at the bottom of the placement box, the detachable mode is a plug-pull type plug-and-unplug mode, an insertion block is arranged at the bottom of the placement box, an insertion groove is formed in the upper portion of the replaceable bottom support, and the insertion block is matched with the insertion groove; an arc-shaped groove with a downward opening is formed in the lower part of the replaceable bottom support; and the replaceable bottom support is provided with various specifications. According to the utility model, pipe fittings with different pipe diameters can be adapted through the replaceable collet; the device is simple in structure, free of hands of detection personnel, suitable for various narrow detection environments, capable of reducing detection blind areas, avoiding leakage detection risks and capable of improving detection efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fitting detection, in particular to an auxiliary tooling for scanning and detecting pipe fittings in refineries. Background Art

[0002] Pulsed eddy current testing technology can detect defects inside pipelines in real time, quickly and accurately by utilizing the characteristics of pulsed eddy current induced electromagnetic fields and combining signal acquisition and image processing technology. It passes a pulse current into the excitation coil to excite a pulse magnetic field, generating induced transient eddy currents (pulsed eddy currents) in the conductor specimen in the magnetic field. The magnetic field generated by the pulsed eddy current induces a voltage signal that changes with time on the detection coil, thereby achieving the purpose of detection.

[0003] Some small-diameter pipe fittings (diameter below DN50) in refineries such as CNPC and Sinopec need to be tested with pulsed eddy current sensors. Generally, if the space where the pipe fittings are located is small and there are blind spots, such as extreme positions such as the connection near the weld, the connection with another pipe fitting, and the connection with the valve, the inspection personnel cannot hold the sensor and stick it to the pipeline for inspection; in addition, even if there is enough space, if the handheld sensor is attached to the pipeline for inspection, the inspection distance may fluctuate due to hand shaking, the inspection efficiency is slow, and the effect is poor; in addition, different pipe fittings have different diameters, and the detection sensor needs to be adapted to pipe fittings of different diameters for inspection, which is also a problem.

[0004] Therefore, auxiliary tooling for scanning and testing refinery pipe fittings is designed to solve the above problems. Summary of the invention

[0005] In order to overcome the above shortcomings, the utility model provides an auxiliary tooling for scanning and detecting refinery pipe fittings, including a placement box, which is a cubic shape with an upper opening, the top of the placement box is open and is provided with a detachable cover plate, and a cable gland, i.e., a cable fixing head, is provided on the right side of the placement box, which mainly functions to fasten and seal the cable; a replaceable base bracket is detachably provided at the bottom of the placement box, and the detachability is plug-in and unplug-in, and an insert block is provided at the bottom of the placement box, and the upper part of the replaceable base bracket is a slot, and the insert block is adapted to the slot; the lower part of the replaceable base bracket is a circular arc groove opening downward; the replaceable base bracket is provided with a variety of specifications, and the size and curvature of the circular arc groove at the lower part of the replaceable base bracket of each specification are different, in order to cater to pipelines to be tested with different diameters.

[0006] Preferably, a handle is provided on the top surface of the cover plate to facilitate installation and removal of the cover plate.

[0007] Preferably, the front side and the rear side of the placement box are inwardly concave arc surfaces, which are convenient for holding and prevent from slipping.

[0008] Preferably, the cover plate is snapped onto the top of the placement box and is fastened and fixed by nuts.

[0009] Preferably, a rubber ring groove is provided in the cable gland to prevent cable wear.

[0010] The beneficial effects of the utility model are:

[0011] The auxiliary tooling for scanning and inspecting refinery pipe fittings of the utility model can adapt to pipe fittings of different diameters through replaceable bases; it frees the hands of inspectors, adapts to various narrow inspection environments, reduces inspection blind spots, avoids the risk of missed inspections, and improves inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A three-dimensional diagram of the auxiliary tooling used for scanning and testing refinery pipe fittings;

[0013] Figure 2 This is the main view of the auxiliary tooling used for scanning and testing refinery pipe fittings;

[0014] Figure 3 This is the left view of the auxiliary tooling used for scanning and testing refinery pipe fittings;

[0015] Figure 4 This is the right side view of the auxiliary tooling used for scanning and testing refinery pipe fittings;

[0016] Figure 5 A three-dimensional diagram of the auxiliary tooling used for scanning and testing refinery pipe fittings;

[0017] Figure 6 A three-dimensional diagram of a replaceable base;

[0018] in:

[0019] 1-cover plate; 2-placement box; 21-insert block; 3-replaceable base; 31-slot; 4-cable head. DETAILED DESCRIPTION

[0020] Example

[0021] like Figure 1 and Figure 2 As shown, the auxiliary tooling for scanning and detecting refinery pipe fittings includes a placement box 2, which is a cubic shape with an upper opening, used to place instruments such as sensors, and the top of the placement box 2 is open and is provided with a detachable cover plate 1;

[0022] The top surface of the cover plate 1 is provided with a handle to facilitate installation and removal of the cover plate.

[0023] like Figure 3 and Figure 4 As shown, the front side and the rear side of the placement box 2 are inwardly concave arc surfaces, which are convenient for holding and prevent from slipping.

[0024] like Figure 5 and Figure 6 As shown, a gland 4, i.e., a cable fixing head, is arranged on the right side of the placement box 2, and its main function is to fasten and seal the cable; a replaceable base support 3 is detachably arranged at the bottom of the placement box 2, and the detachability is plug-in and unplug-in, and an insert block 21 is arranged at the bottom of the placement box 2, and the upper part of the replaceable base support 3 is a slot 31, and the insert block 21 and the slot 31 are adapted; the lower part of the replaceable base support 3 is an arc-shaped groove opening downward; the replaceable base support 3 is arranged in a variety of specifications, and the size and curvature of the arc-shaped groove at the lower part of the replaceable base support 3 of each specification are different, in order to cater to the different diameters of the pipes to be tested.

[0025] The cover plate 1 is buckled on the top of the placement box 2 and is fastened and fixed by nuts.

[0026] The cable gland 4 is provided with a rubber ring groove to prevent the cable from being worn.

[0027] Directions:

[0028] Place the sensor in the placement box 2, cover the cover plate 1, and fix the cover plate 1 and the placement box 2 by nuts. According to the diameter of the pipe to be tested, select a suitable replaceable base 3, and install the replaceable base 3 at the bottom of the placement box 2 by fitting the plug block 21 and the slot 31; the arc-shaped groove at the bottom of the replaceable base 3 is adapted to the pipe to be tested; the cable gland 4 fixes the cable.

[0029] When the present application is used, it can be used in conjunction with a magnetic suction device and / or a walking device.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An auxiliary tool for scanning and testing refinery pipe fittings, comprising a placement box (2), wherein the placement box (2) is a cubic shape with an upper opening, and is characterized in that: The top of the placement box (2) is open and provided with a detachable cover plate (1); the right side of the placement box (2) is provided with a cable gland (4), i.e., a cable fixing head, which mainly functions to fasten and seal the cable; the bottom of the placement box (2) is detachably provided with a replaceable base bracket (3), the detachability is plug-in and unplug-out, the bottom of the placement box (2) is provided with an insert block (21), the upper part of the replaceable base bracket (3) is a slot (31), and the insert block (21) and the slot (31) are adapted; the lower part of the replaceable base bracket (3) is a circular arc groove opening downward; the replaceable base bracket (3) is provided with a plurality of specifications, and the size and curvature of the circular arc groove at the lower part of each specification of the replaceable base bracket (3) are different, in order to cater to pipelines to be tested with different pipe diameters.

2. The auxiliary tooling for scanning and detecting refinery pipe fittings according to claim 1 is characterized in that: The top surface of the cover plate (1) is provided with a handle.

3. The auxiliary tooling for scanning and detecting refinery pipe fittings according to claim 2 is characterized in that: The front side surface and the rear side surface of the placement box (2) are inwardly concave arc surfaces.

4. The auxiliary tooling for scanning and testing refinery pipe fittings according to claim 3 is characterized in that: The cover plate (1) is snapped onto the top of the placement box (2) and is fastened and fixed by nuts.

5. The auxiliary tooling for scanning and testing refinery pipe fittings according to claim 4 is characterized in that: The cable gland (4) is provided with a rubber ring groove to prevent the cable from being worn.

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