CN111458401B - Portable manifold magnetic flux leakage detector and manifold magnetic flux leakage detection equipment - Google Patents
Portable manifold magnetic flux leakage detector and manifold magnetic flux leakage detection equipment Download PDFInfo
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- CN111458401B CN111458401B CN202010466895.3A CN202010466895A CN111458401B CN 111458401 B CN111458401 B CN 111458401B CN 202010466895 A CN202010466895 A CN 202010466895A CN 111458401 B CN111458401 B CN 111458401B
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 19
- 238000010586 diagram Methods 0.000 description 10
- 230000007547 defect Effects 0.000 description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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- 239000003345 natural gas Substances 0.000 description 2
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
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Abstract
The invention provides a portable manifold magnetic flux leakage detector and manifold magnetic flux leakage detection equipment. The detector comprises a coil mechanism, a sensing mechanism, a walking supporting mechanism, a displacement collector, a first connecting piece, a second connecting piece and a traction piece, wherein the coil mechanism comprises an annular coil frame and an electromagnetic coil; the sensing mechanism comprises an annular box body and a magnetic leakage sensor; the walking supporting mechanism comprises a supporting frame, a walking piece and a displacement collector; the displacement collector is fixedly arranged on the support frame, the walking piece, the annular box body or the annular coil frame and can collect displacement information; the traction piece is fixedly arranged on the support frame, the walking piece, the annular box body or the annular coil frame, and can provide traction force moving along the length extending direction of the manifold under the condition of bearing external force. The invention can detect and cover the whole circumferential area of the detected manifold at one time, thereby improving the detection efficiency; and the detection accuracy is high, the degree of automation is high, and the operation stability is high.
Description
Technical Field
The invention relates to manifold detection, in particular to the field of petroleum and natural gas manifold detection, and particularly relates to a portable manifold magnetic flux leakage detector and manifold magnetic flux leakage detection equipment.
Background
At present, petroleum or natural gas is widely used as an important energy source not only in the transportation industry but also in the field of engineering machinery. In the oil and gas industry, manifolds have an indispensable position.
Active manifolds can cause damage to the manifold body to varying degrees due to the corrosiveness, erosion, vibration, manufacturing, etc. of the internal media. The accident of thorny leakage caused by the defect of the pipe body is happened, which not only threatens the life safety of personnel and the surrounding environment, but also causes great loss to the national production economy. Therefore, the manifold must be detected according to the specification to eliminate the potential safety hazard existing in the manifold and ensure the safe operation of the manifold.
The manifold magnetic flux leakage detection can identify the type of manifold defects, quantify the sizes of the defects, is beneficial to early maintenance, reduces accidents, has high operation efficiency and accurate detection data, is convenient for comprehensively knowing the conditions of manifold corrosion, mechanical damage and the like, and has important significance for evaluating the service life of the manifold.
As a result of studies, the inventors found that: the manifold magnetic flux leakage detection generally only can cover a certain area with a certain fixed size in the circumferential direction of the manifold, and is difficult to comprehensively detect the whole circumferential direction of the manifold, so that the position of the detector in the circumferential direction of the manifold is required to be continuously moved manually, and the full coverage detection of the circumferential area can be achieved.
Disclosure of Invention
The present invention aims to address at least one of the above-mentioned deficiencies of the prior art. For example, it is an object of the present invention to provide a magnetic flux leakage detection device that can travel automatically and can cover the entire circumferential area of a manifold at one time.
In order to achieve the above object, an aspect of the present invention provides a portable manifold magnetic flux leakage detector, which includes a coil mechanism, a sensing mechanism, a walking support mechanism, a displacement collector, a first connector, a second connector, and a traction member, wherein the coil mechanism includes: a ring-shaped coil frame having a first inner diameter, and an electromagnetic coil wound on an outer circumferential wall of the ring-shaped coil frame in a circumferential direction and connectable to a power source; the sensing mechanism includes: an annular box body with a second inner diameter, a first outer diameter and a cavity formed between the second inner diameter and the first outer diameter, and a magnetic leakage sensor arranged in the cavity and capable of collecting magnetic leakage signals of a manifold in the second inner diameter, wherein the first outer diameter is not larger than the first inner diameter, and the second inner diameter is not smaller than the outer diameter of the manifold; the walking support mechanism comprises a support frame, a walking piece and a displacement collector, wherein the support frame is connected with the coil mechanism through a first connecting piece and is connected with the sensing mechanism through a second connecting piece, and the walking piece is fixedly arranged on the support frame and can walk along the outer wall of the manifold; the displacement collector is fixedly arranged on the support frame, the walking piece, the annular box body or the annular coil frame and can collect displacement information; the traction piece is fixedly arranged on the support frame, the walking piece, the annular box body or the annular coil frame, and can provide traction force moving along the axial direction of the annular coil frame under the condition of bearing external force.
In another aspect of the invention, a manifold magnetic flux leakage detection device is provided, the manifold magnetic flux leakage detection device comprises the portable manifold magnetic flux leakage detector and a hydraulic lifting platform, the hydraulic lifting platform comprises a power unit, a lifting unit, a working platform, a twisting unit and a manifold bracket, wherein the twisting unit comprises a winch, a cable and a winch bracket, the winch bracket is mounted on the working platform, the cable is connected with a traction piece of the portable manifold magnetic flux leakage detector, and the winch is mounted on the winch bracket and can provide tension for the cable; the manifold support comprises a first supporting part and a second supporting part which are arranged on the working platform, wherein the first supporting part can extend into the manifold and support the manifold, and the second supporting part can support a coil mechanism of the portable manifold magnetic flux leakage detector; the lifting unit comprises a base and a telescopic member, and the telescopic member is arranged on the base and connected with the working platform; the power unit is arranged on the base and is respectively connected with the telescopic member and the winch so as to respectively provide power for the telescopic member and the winch.
In yet another aspect of the present invention, there is provided a manifold magnetic flux leakage detection apparatus comprising a portable manifold magnetic flux leakage detector as described above, a first hydraulic lift table and a second hydraulic lift table, the portable manifold magnetic flux leakage detector comprising two traction members, wherein the first hydraulic lift table comprises a first power unit, a first lift unit, a first work platform, a first winch unit, and a first manifold support, wherein the first winch unit comprises a first winch, a first cable and a first winch support, the first winch support is mounted on the first work platform, the first cable is connected to one traction member, the first winch is mounted on the first winch support and is capable of providing a first tension to the first cable; the first manifold support comprises a first supporting part and a second supporting part which are arranged on the first working platform, the first supporting part can extend into one end of the manifold and support the manifold, and the second supporting part can support a coil mechanism of the portable manifold magnetic flux leakage detector; the first lifting unit comprises a first base and a first telescopic member, and the first telescopic member is arranged on the first base and connected with the first working platform; the first power unit is arranged on the first base and is respectively connected with the first telescopic member and the first winch so as to respectively provide power for the first telescopic member and the first winch; the second hydraulic lifting platform comprises a second power unit, a second lifting unit, a second working platform, a second twisting unit and a second manifold bracket, wherein the second twisting unit comprises a second winch, a second cable and a second winch bracket, the second winch bracket is arranged on the second working platform, the second cable is connected with another traction piece, and the second winch is arranged on the second winch bracket and can provide a second pulling force for the second cable, and the direction of the second pulling force is opposite to that of the first pulling force; the second manifold support comprises a third supporting part and a fourth supporting part which are arranged on the second working platform, the third supporting part can extend into the other end of the manifold and support the manifold, and the fourth supporting part can support a coil mechanism of the portable manifold magnetic flux leakage detector; the second lifting unit comprises a second base and a second telescopic member, and the second telescopic member is arranged on the second base and is connected with the second working platform; the second power unit is arranged on the second base and is respectively connected with the second telescopic member and the second winch so as to respectively power the second telescopic member and the second winch.
Compared with the prior art, the invention has the beneficial effects that at least one of the following contents is included: the one-time detection covers the whole circumferential area of the detected manifold, so that the detection efficiency is improved; the detection accuracy and the automation degree are high; the running stability is high.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 illustrates a schematic structural diagram of a coil mechanism in an exemplary embodiment of a portable manifold magnetic flux leakage detector of the present invention;
FIG. 2 illustrates a schematic diagram of a sensing mechanism in an exemplary embodiment of a portable manifold magnetic flux leakage detector of the present invention;
FIG. 3 illustrates a schematic diagram of a walking support mechanism in an exemplary embodiment of a portable manifold magnetic flux leakage detector of the present invention;
FIG. 4 illustrates a schematic diagram of an exemplary embodiment of a portable manifold magnetic flux leakage detector of the present invention;
FIG. 5 illustrates a schematic view of an exemplary embodiment of a portable manifold magnetic flux leakage detector of the present invention in use;
FIG. 6 illustrates a schematic diagram of an exemplary embodiment of a manifold flux leakage detection apparatus of the present invention.
The reference numerals are explained as follows:
In fig. 1 to 5, an electromagnetic coil 1, an annular coil frame 2, a hook 3, an electromagnetic coil wiring port 4, a right sensor box 5, a bolt hole 6, a left sensor box 7, a support frame 8, a travelling wheel 9, a square hole 10, a gear 11, an encoder 12 and a bolt 13;
In fig. 6, traveling wheel 14, handle 15, support expansion bracket 16, bracket slide groove 17, hydraulic cylinder 18, distribution box 19, first work platform 20, electric winch bracket 21, electric winch 22, cable 23, cable hook 24, first manifold bracket 25, first support 26, second support 27, manifold 28, rope guide wheel 29, and portable manifold magnetic flux leakage detector 30.
Detailed Description
Hereinafter, the portable manifold magnetic flux leakage detector and the manifold magnetic flux leakage detection equipment of the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.
Example 1
FIG. 1 illustrates a schematic structural diagram of a coil mechanism in an exemplary embodiment of a portable manifold magnetic flux leakage detector of the present invention; FIG. 2 illustrates a schematic diagram of a sensing mechanism in an exemplary embodiment of a portable manifold magnetic flux leakage detector of the present invention; FIG. 3 illustrates a schematic diagram of a walking support mechanism in an exemplary embodiment of a portable manifold magnetic flux leakage detector of the present invention; FIG. 4 shows a schematic diagram of the structure of an exemplary embodiment of the portable manifold flux leakage detector of the present invention.
As shown in fig. 1 to 4, in an exemplary embodiment of the present invention, the portable manifold flux leakage detector includes a coil mechanism, a sensing mechanism, a walking support mechanism, a displacement collector, a first connection member, a second connection member, and a traction member.
As shown in fig. 1, the coil mechanism includes an electromagnetic coil 1 and a toroidal coil frame 2. The annular coil former 2 has a first inner diameter. The electromagnetic coil 1 is wound on the outer circumferential wall of the annular coil frame 2 in the circumferential direction of the annular coil frame 2 and is connectable to a power source. The magnetic field generated by the electromagnetic coil 1 magnetizes the detected manifold when the power is on. In addition, the coil mechanism can also comprise an electromagnetic coil wiring port 4 fixedly arranged on the side surface of the coil frame 2, and the electromagnetic coil 1 can be more conveniently connected with a power supply through the electromagnetic coil wiring port 4.
As shown in fig. 2, the sensing mechanism includes an annular case and a leakage magnetic sensor. The ring-shaped case may be constituted by a right sensor case 5 and a left sensor case 7 connected to each other by a hinge. The annular box may have a second inner diameter, a first outer diameter, and a cavity formed between the second inner diameter and the first outer diameter. A magnetic leakage sensor (not shown in fig. 2) may be disposed in the cavity of the annular box and configured to collect magnetic leakage signals from the manifold located in the second inner diameter. The magnetic leakage signal generated at the defect of the manifold is collected and output by the magnetic leakage sensor. For example, the leakage magnetic sensor may further include a hall element for collecting leakage magnetic signals, which is provided on an inner wall of the annular case. Here, the first outer diameter is slightly smaller or not larger than the first inner diameter; the second inner diameter is slightly larger or not smaller than the outer diameter of the manifold. In addition, bolt holes 6 may be formed in the side walls or outer walls of the annular box for connection to a support frame 8 (shown in fig. 3) of the walking support mechanism.
As shown in fig. 3 and 4, the travel support mechanism includes a support frame 8, travel wheels 9, gears 11, and an encoder 12. The support frame 8 is fixedly connected with the annular coil frame 2 of the coil mechanism through square holes 10 and bolts 13 which are matched with each other. The support frame 8 is connected to the annular box of the sensing mechanism through bolt holes 6 (shown in fig. 2). The travelling wheel 9 is fixedly arranged on the support frame 8 and can travel along the outer wall of the manifold. The number of the supporting frames 8 may be three or more (for example, 4 groups), and the number of the traveling wheels 9 may be 6 or more (for example, 8).
However, the present invention is not limited thereto. For example, the support frame may be directly fixedly connected to one side wall of the annular coil frame and the same directional side wall of the annular box body. Correspondingly, the number of the supporting frames can be two, and the supporting frames are respectively arranged on two sides. The number of the walking wheels is only 4, and the walking wheels are respectively arranged on the two supporting frames. In addition, the support frame can also be respectively connected with the coil mechanism and the sensing mechanism through other connection modes. The walking wheel can also be replaced by other walking mechanisms fixedly arranged on the supporting frame, so long as the walking along the outer wall of the manifold can be realized.
The encoder 12 is connected with one traveling wheel 9 through a gear 11, so that displacement information can be acquired when the traveling wheel 9 rotates, and the defect position of the manifold can be accurately judged in real time. However, the invention is not limited thereto, and the encoder may be other displacement acquisition means capable of positioning or displacement information acquisition, for example. In addition, the displacement acquisition device can also be fixedly arranged on the support frame, the annular box body or the annular coil frame.
As shown in fig. 1 and 4, the hooks 3 are provided on the side wall of the annular coil frame 2, and can provide an impetus for pulling the portable manifold leakage flux detector in the axial direction of the annular coil frame 2 (i.e., the length extending direction of the manifold). However, the present invention is not limited thereto, and for example, the hook may be provided as another traction member fixed to the support frame, the traveling member, the annular case, or the annular coil frame, as long as it can provide traction force for the portable manifold leakage flux detector moving in the axial direction of the annular coil frame under the condition of receiving an external force.
FIG. 5 illustrates a schematic view of an exemplary embodiment of a portable manifold magnetic flux leakage detector of the present invention in use. In use, as shown in fig. 5, the travelling wheel 9 can roll on the surface of the measured manifold, so that the portable manifold magnetic flux leakage detector can move along the axial direction of the measured manifold.
Example 2
In another exemplary embodiment of the present invention, the portable manifold magnetic flux leakage detector may adjust the traveling support mechanism based on the structure of embodiment 1 above, so as to set the traveling member in the second inner diameter of the annular box, thereby facilitating the magnetic flux leakage detection of the curved manifold with radian. For example, the road wheels are adjusted to balls and other displacement collectors are used in place of encoders and gears that mate with the road wheels.
Example 3
FIG. 6 illustrates a schematic diagram of an exemplary embodiment of a manifold flux leakage detection apparatus of the present invention.
As shown in fig. 6, in another exemplary embodiment of the present invention, the manifold flux leakage detection apparatus includes the portable manifold flux leakage detector, the first hydraulic lift table, and the second hydraulic lift table as described in embodiment 1. The portable manifold flux leakage detector 30 has two hooks 3 (shown in fig. 4) provided on both sides.
Specifically, a first hydraulic lift (which may be referred to as a hydraulic lift cart) includes a first power unit, a first lift unit, a first work platform, a first winch unit, and a first manifold support.
The first winch unit includes an electric winch 22 (which may be referred to as a first winch), a cable 23 (which may be referred to as a first cable), and an electric winch support 21 (which may be referred to as a first winch support). An electric winch support 21 is mounted on the first work platform 20. The cable 23 is wound around the electric winch 22 and connected to the left hand hook of the portable manifold flux leakage detector 30 by the cable hook 24. The electric winch 22 is mounted on the electric winch support 21 and is capable of providing a pulling force (which may be referred to as a first pulling force) to the left along the length extension direction of the manifold 28 to the cable 23, so as to pull the portable manifold leakage flux detector 30 to move to the left along the length extension direction of the manifold 28, thereby realizing the defect detection of the manifold 28. The electric winch may include a motor and a shield for the cable coil having a rectangular iron frame at the front end for limiting the swing of the cable to a limited extent. In addition, the first twisting unit further comprises a rope guiding wheel 29 which is arranged on the first manifold support 25 and matched with the rope 23, so that the moving direction of the rope 23 can be further limited, and the stability and the accuracy of detection of the portable manifold magnetic flux leakage detector are further ensured.
The first manifold support 25 includes a first support portion 26 and a second support portion 27 provided on the first work platform 20. The first support 26 is capable of extending into the left end of the manifold 28 and supporting the manifold 28; the second support 27 is capable of supporting the coil mechanism of the portable manifold magnetic flux leakage detector 30, thereby facilitating support of the initial or final detection position of the portable manifold magnetic flux leakage detector 30.
The first lifting unit includes a first base, a traveling wheel 14, a handle 15, a support expansion bracket 16, a bracket sliding groove 17, and a hydraulic cylinder 18. The travelling wheel 14 and the handle 15 are used to facilitate movement of the cart. The support expansion bracket 16 and the bracket sliding groove 17 are provided on the first base and can support the first work platform 20. The support telescoping rack 16 may be X-shaped. The support telescopic frame 16 can move in the support sliding groove 17 so as to realize lifting and lowering of the first working platform 20. Hydraulic cylinders 18 provide hydraulic power for supporting telescoping shelves 16. However, the present invention is not limited thereto, and the first elevating unit may also elevate the first work platform by other telescopic members.
The distribution box 19 provides power and is connected to the hydraulic cylinder 18 and the electric winch 22, respectively. A control system can be arranged in the distribution box 19, and a control button can be arranged outside the box body. However, the present invention is not limited thereto, and a power unit connected to the telescopic member and the first winch, respectively, and having other types or structures may be provided on the first base as long as the telescopic member and the first winch can be powered, respectively.
As shown in fig. 6, the second hydraulic lift table may be disposed symmetrically to the first hydraulic lift table. The second hydraulic lift table may have a structure corresponding to the first hydraulic lift table. The second electric winch of the second hydraulic lift can provide a right pulling force (which may be referred to as a second pulling force) to the second cable along the length extension direction of the manifold 28, so as to pull the portable manifold leakage flux detector 30 to move rightwards along the length extension direction of the manifold 28, thereby realizing the reinspection of the manifold 28.
The present exemplary embodiment can be used in the following manner.
Firstly, two hydraulic lifting trolley are respectively moved to two ends of a detected manifold 28, a hydraulic cylinder is started to enable the manifold to support a telescopic frame to be at a proper position, a coil part of a portable manifold magnetic flux leakage detector is sleeved on a second support part of a manifold support frame on one side of the hydraulic lifting trolley, two ends of the detected manifold 28 are sleeved on a first support part of the manifold support frame on the two side of the hydraulic lifting trolley, and the hydraulic cylinders of the two side of the hydraulic lifting trolley are synchronously started to be at a proper working position.
Then, a sensing mechanism of the portable manifold magnetic flux leakage detector is arranged on the detected manifold 28, the coil mechanism is assembled outside the sensing mechanism, and then the cable hook is hooked on a hook of the coil frame; the electric winch on the hydraulic lifting trolley at one side is started, the portable manifold magnetic flux leakage detector 30 is pulled to walk through a cable, and preliminary detection of the detected manifold 28 is achieved.
Subsequently, an electric winch on the hydraulic lifting trolley at the other side is started, and the portable manifold magnetic flux leakage detector 30 is pulled to walk through a cable, so that the re-inspection of the inspected manifold 28 is realized.
Example 4
In another exemplary embodiment of the present invention, the manifold leakage flux detection equipment may include the portable manifold leakage flux detector as described in embodiment 1 or 2 and the first hydraulic lift table as described in embodiment 3. The present exemplary embodiment is not as convenient as in embodiment 3 for reinspection of a manifold, but can be applied to defect detection of straight and curved manifolds.
In summary, the advantages of the portable manifold magnetic flux leakage detector and the manifold magnetic flux leakage detection device of the present invention may include one or more of the following:
(1) Through exquisite structural design, the magnetization of the electrified coil replaces the magnetization of the permanent magnet, the whole circumferential area of the detected manifold is covered by one-time detection, and the detection efficiency is improved;
(2) The stability and the accuracy of the movement of the detection equipment are improved;
(3) The automation degree of the detection process is high, and the labor intensity is low;
(4) The magnetic flux leakage detection method is suitable for magnetic flux leakage detection and reinspection of all straight pipe manifold corrosion defects, is also suitable for magnetic flux leakage detection of part of bent pipe manifold corrosion defects, and has wide application range and good application prospect.
Although the present invention has been described above with reference to the exemplary embodiments and the accompanying drawings, it should be apparent to those of ordinary skill in the art that various modifications can be made to the above-described embodiments without departing from the spirit and scope of the claims.
Claims (6)
1. A portable manifold magnetic flux leakage detector is characterized by comprising a coil mechanism, a sensing mechanism, a walking supporting mechanism, a displacement collector, a first connecting piece, a second connecting piece and a traction piece, wherein,
The coil mechanism includes: a ring-shaped coil frame having a first inner diameter, and an electromagnetic coil wound on an outer circumferential wall of the ring-shaped coil frame in a circumferential direction and connectable to a power source;
the sensing mechanism includes: an annular box body with a second inner diameter, a first outer diameter and a cavity formed between the second inner diameter and the first outer diameter, and a magnetic leakage sensor arranged in the cavity and capable of collecting magnetic leakage signals of a manifold in the second inner diameter, wherein the first outer diameter is not larger than the first inner diameter, and the second inner diameter is not smaller than the outer diameter of the manifold;
The walking support mechanism comprises a support frame, a walking piece and a displacement collector, wherein the support frame is connected with the coil mechanism through a first connecting piece and is connected with the sensing mechanism through a second connecting piece, and the walking piece is fixedly arranged on the support frame and can walk along the outer wall of the manifold;
the displacement collector is fixedly arranged on the support frame, the walking piece, the annular box body or the annular coil frame and can collect displacement information; wherein the walking parts are a plurality of walking wheels;
the traction piece is fixedly arranged on the support frame, the walking piece, the annular box body or the annular coil frame and can provide traction force moving along the axial direction of the annular coil frame under the condition of bearing external force;
The displacement collector is an encoder connected with one travelling wheel of the plurality of travelling wheels;
The leakage magnetic sensor further comprises a Hall element arranged on the inner wall of the annular box body;
The walking member is disposed in the second inner diameter.
2. A manifold magnetic flux leakage detection device, characterized in that the manifold magnetic flux leakage detection device comprises the portable manifold magnetic flux leakage detector and a hydraulic lifting platform, wherein the hydraulic lifting platform comprises a power unit, a lifting unit, a working platform, a twisting unit and a manifold bracket,
The winch is arranged on the winch support and can provide tension for the cable;
The manifold support comprises a first supporting part and a second supporting part which are arranged on the working platform, wherein the first supporting part can extend into the manifold and support the manifold, and the second supporting part can support a coil mechanism of the portable manifold magnetic flux leakage detector;
the lifting unit comprises a base and a telescopic member, and the telescopic member is arranged on the base and connected with the working platform;
The power unit is arranged on the base and is respectively connected with the telescopic member and the winch so as to respectively provide power for the telescopic member and the winch.
3. The manifold flux leakage detection equipment according to claim 2, wherein the wringing unit further comprises a rope guide wheel provided on the manifold support and engaged with the cable.
4. The manifold flux leakage detection equipment of claim 2, wherein the lifting unit further comprises a travel wheel disposed at a bottom of the base.
5. A manifold magnetic flux leakage detection device, comprising the portable manifold magnetic flux leakage detector of claim 1, a first hydraulic lift table, and a second hydraulic lift table, the portable manifold magnetic flux leakage detector comprising two traction members, wherein,
The first hydraulic lifting platform comprises a first power unit, a first lifting unit, a first working platform, a first twisting unit and a first manifold bracket, wherein,
The first winch is arranged on the first winch support and can provide first pulling force for the first cable;
The first manifold support comprises a first supporting part and a second supporting part which are arranged on the first working platform, the first supporting part can extend into one end of the manifold and support the manifold, and the second supporting part can support a coil mechanism of the portable manifold magnetic flux leakage detector;
The first lifting unit comprises a first base and a first telescopic member, and the first telescopic member is arranged on the first base and connected with the first working platform;
The first power unit is arranged on the first base and is respectively connected with the first telescopic member and the first winch so as to respectively provide power for the first telescopic member and the first winch;
The second hydraulic lifting platform comprises a second power unit, a second lifting unit, a second working platform, a second twisting unit and a second manifold bracket, wherein,
The second winch is arranged on the second winch support and can provide a second pulling force for the second cable, and the direction of the second pulling force is opposite to that of the first pulling force;
The second manifold support comprises a third supporting part and a fourth supporting part which are arranged on the second working platform, the third supporting part can extend into the other end of the manifold and support the manifold, and the fourth supporting part can support a coil mechanism of the portable manifold magnetic flux leakage detector;
The second lifting unit comprises a second base and a second telescopic member, and the second telescopic member is arranged on the second base and is connected with the second working platform;
the second power unit is arranged on the second base and is respectively connected with the second telescopic member and the second winch so as to respectively power the second telescopic member and the second winch.
6. The manifold magnetic flux leakage detection equipment according to claim 5, wherein the first stranding unit further comprises a first rope guide wheel disposed on the first manifold support and engaged with the first cable; the second twisting unit further comprises a second rope guiding wheel which is arranged on the second manifold bracket and matched with the second cable.
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| CN212083316U (en) * | 2020-05-28 | 2020-12-04 | 中国石油天然气集团有限公司 | Portable manifold magnetic leakage detector and manifold magnetic leakage detection equipment |
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| CN103604862A (en) * | 2013-11-28 | 2014-02-26 | 中国石油大学(北京) | Portable device for detecting flaws of straight pipe and bent pipe of high pressure manifold |
| CN207408346U (en) * | 2017-11-16 | 2018-05-25 | 东北石油大学 | A kind of pipe fitting Magnetic Flux Leakage Testing Instrument and apply its pipe fitting Magnetic Flux Leakage Testing System |
| CN209495994U (en) * | 2018-11-16 | 2019-10-15 | 中国石油集团川庆钻探工程有限公司 | A kind of high pressure pipe joint Magnetic Flux Leakage Testing Instrument based on omni-directional wheel |
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