CN103002695A - Electronic device's sealed cabin body in pipeline operation equipment - Google Patents

Electronic device's sealed cabin body in pipeline operation equipment Download PDF

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Publication number
CN103002695A
CN103002695A CN2011102760513A CN201110276051A CN103002695A CN 103002695 A CN103002695 A CN 103002695A CN 2011102760513 A CN2011102760513 A CN 2011102760513A CN 201110276051 A CN201110276051 A CN 201110276051A CN 103002695 A CN103002695 A CN 103002695A
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China
Prior art keywords
resistant cabin
pressure
cabin cylinder
cylinder
hole
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CN2011102760513A
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Chinese (zh)
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CN103002695B (en
Inventor
李锴
李海川
于达
李振林
李波
姜永涛
郑宏伟
张仕民
吴岩
段冲
江辉
彭忍社
左汝宽
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Petrochina Co Ltd
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Petrochina Co Ltd
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Abstract

The invention discloses a sealed cabin of an electronic device in pipeline operation equipment, and belongs to the field of natural gas transportation. The sealed cabin comprises a dynamic sealed pressure-resistant cabin cylinder, a small pressure-resistant cabin cylinder and a large pressure-resistant cabin cylinder which are fixedly connected in sequence, an output shaft is mounted on the dynamic sealed pressure-resistant cabin cylinder, one end of the output shaft extends into the dynamic sealed pressure-resistant cabin cylinder, the other end of the output shaft extends out of the dynamic sealed pressure-resistant cabin cylinder, a dynamic sealed O-shaped ring is arranged at the contact position of the output shaft and the dynamic sealed pressure-resistant cabin cylinder, the small pressure-resistant cabin cylinder is used for mounting a power system, and the large pressure-resistant cabin cylinder is used for mounting electronic components. The invention provides a sealed pressure-resistant cabin body which is simple in structure and convenient to install and maintain, static seal and dynamic seal of a rotating shaft and a reciprocating shaft are realized, and safe and reliable operation of pipeline operation equipment such as a pipe cleaner, a magnetic flux leakage detector, a pipeline robot and the like is guaranteed.

Description

A kind of sealing cabin of electronic devices in pipeline operation equipment
Technical field
The present invention relates to a kind of sealing cabin, particularly a kind of sealing cabin of electronic devices in pipeline operation equipment.
Background technology
At present, natural gas line is cleared up by pipeline operation equipment, and common pipeline operation equipment has wiper, flux leakage detector and pipe robot etc.In the pipeline cleaning operation, generally need and at pipeline operation equipment speed regulating device to be installed, the speed of advancing at pipeline internal by speed regulating device regulation and control pipeline operation equipment.
Speed regulating device mainly comprise power supply, circuit board, direct current machine and transducer.For adapting to the characteristics of heavy caliber that natural gas line has, high pressure, high flow rate, speed regulating device must have security and stability, this just need to be installed in each electronic devices and components in the cabin body of the withstand voltage waterproof of sealing, and must solve the movable sealing problem of direct current machine rotating shaft.
But, also there is not at present a kind of sealing cabin structure that can satisfy the intraductal operation equipment of above-mentioned condition, cause the pigging work can't safe and reliable operation.
Summary of the invention
Owing to lack the sealing cabin structure of intraductal operation equipment, and cause the defective that pigging work can't safe and reliable operation in order to overcome above-mentioned prior art, the embodiment of the invention provides a kind of sealing cabin of electronic devices in pipeline operation equipment.Described technical scheme is as follows:
A kind of sealed compartment of electronic devices in pipeline operation equipment, described sealed compartment comprises the movable sealing pressure-resistant cabin cylinder that is fixedly connected with in turn, little pressure-resistant cabin cylinder and large pressure-resistant cabin cylinder, described movable sealing pressure-resistant cabin cylinder is installed with output shaft, one end of described output shaft stretches into described movable sealing pressure-resistant cabin cylinder, the other end stretches out described movable sealing pressure-resistant cabin cylinder, described output shaft and described movable sealing pressure-resistant cabin cylinder touching position are provided with movable sealing O type circle, described little pressure-resistant cabin cylinder is used for installing dynamical system, and described large pressure-resistant cabin cylinder is used for installing electronic devices and components.
Particularly, the one end sealing other end opening of described movable sealing pressure-resistant cabin cylinder, described blind end is provided with the hole, described hole is used for passing described output shaft, described hole wall is provided with the hole inner groovy, described hole inner groovy is used for placing movable sealing O type circle, the end face of described openend is provided with through hole, described through hole is used for passing bolt, and described bolt is used for fixing described movable sealing pressure-resistant cabin cylinder and described little pressure-resistant cabin cylinder, and the end face of described openend is provided with the ladder platform, the end face of described ladder platform is provided with screwed hole, described screwed hole is used for fixing described dynamical system, and the periphery of described ladder platform is provided with groove, and described groove is used for placing the first static seal O type circle.
Particularly, the wall of described little pressure-resistant cabin cylinder is provided with screw hole, and described screw hole is used for the installation high-voltage connector.
Particularly, described little pressure-resistant cabin cylinder is to be connected by screw or to be welded to connect with being fixedly connected with of described large pressure-resistant cabin cylinder.
Particularly, the two ends of described large pressure-resistant cabin cylinder are blind end, and the blind end of close described little pressure-resistant cabin cylinder is provided with high-voltage connector.
Particularly, blind end away from described little pressure-resistant cabin cylinder in the described large pressure-resistant cabin cylinder is demountable structure, described demountable structure is end cap, described end cap comprises large step and small stair, the end face of described large step circumferentially is provided with through hole uniformly, described through hole is used for passing screw, described screw is used for fixing described end cap and described large pressure-resistant cabin cylinder, the periphery of described small stair is provided with annular groove, described annular groove is used for holding the second static seal O type circle, the end face of described small stair is provided with screw hole, and described screw hole is used for fixing described electronic devices and components.
Particularly, described dynamical system is direct current machine or micro hydraulic system or pneumatic system.
The beneficial effect that the technical scheme that the embodiment of the invention provides is brought is: compared to existing technology, the embodiment of the invention provides a kind of simple in structure, sealing pressure-resistant cabin body that installation and maintenance are easy, realize static seal and rotating shaft and moved back and forth the axle movable sealing, ensured the safe and reliable operations such as pipeline operation equipment such as wiper, flux leakage detector and pipe robot.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the main cutaway view of the sealing cabin of the described electronic devices in pipeline operation equipment of the embodiment of the invention;
Fig. 2 is the stereogram of the described movable sealing pressure-resistant cabin of embodiment of the invention cylinder;
Fig. 3 is the main cutaway view of the described large pressure-resistant cabin cylinder of the embodiment of the invention;
Fig. 4 is the stereogram of the described end cap of the embodiment of the invention.
The drawing reference numeral explanation:
1 output shaft,
2 movable sealing O type circles,
3 movable sealing pressure-resistant cabin cylinders, 31 blind ends, 32 openends, 33 end faces, 34 ladder platforms, 35 holes, 36 hole inner groovies, 37 through holes, 38 screwed holes, 39 grooves,
The axostylus axostyle of 4 dynamical systems,
5 holding screws,
6 first static seal O type circles,
7 little pressure-resistant cabin cylinders,
8 high pressure plug connectors,
9 large pressure-resistant cabin cylinders, 91 first blind ends, 92 second blind ends,
10 second static seal O type circles,
11 screws,
12 end caps, 13 large steps, 14 small stairs, the through hole of 15 end caps, 16 screw holes, 17 annular grooves.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
As shown in Figure 1, the sealed compartment of the described a kind of electronic devices in pipeline operation equipment of present embodiment, described sealed compartment comprises the movable sealing pressure-resistant cabin cylinder 3 that is fixedly connected with in turn, little pressure-resistant cabin cylinder 7 and large pressure-resistant cabin cylinder 9, described movable sealing pressure-resistant cabin cylinder 3 is installed with output shaft 1, one end of described output shaft 1 stretches into described movable sealing pressure-resistant cabin cylinder 3, the other end stretches out described movable sealing pressure-resistant cabin cylinder 3, described output shaft 1 is provided with movable sealing O type circle 2 with described movable sealing pressure-resistant cabin cylinder 3 touching positions, described little pressure-resistant cabin cylinder 7 is used for installing dynamical system, and described large pressure-resistant cabin cylinder 9 is used for installing electronic devices and components.
Compared to existing technology, the embodiment of the invention provides a kind of simple in structure, sealing pressure-resistant cabin body that installation and maintenance are easy, described sealed compartment can be installed static components and parts battery, circuit board etc., the dynamical system that needs rotation or mobile output can be installed again, so realized static seal and rotating shaft and moved back and forth the axle movable sealing, ensured the safe and reliable operations such as pipeline operation equipment such as wiper, flux leakage detector and pipe robot.
Particularly, described dynamical system is direct current machine or micro hydraulic system or pneumatic system.
Referring to Fig. 1, described output shaft 1 is the output shaft of described sealed compartment, and described output shaft 1 links to each other with the axostylus axostyle 4 of dynamical system, and realizes relative fixing between the axostylus axostyle 4 of output shafts 1 and dynamical system by holding screw 5.Under the driving of dynamical system, realize rotation or the traveling priority of output shaft 1.During implementation, the diameter of axle that obtains output shaft 1 according to applicable caliber and the fluid media (medium) calculation of parameter of different intraductal operations equipment and the parameter of holding screw 5.
Particularly, as shown in Figure 2, the one end sealing other end opening of described movable sealing pressure-resistant cabin cylinder 3, described blind end 31 is provided with hole 35, described hole 35 is used for passing described output shaft 1 (referring to Fig. 1), described hole wall is provided with hole inner groovy 36, described hole inner groovy 36 is used for placing movable sealing O type circle 2 (referring to Fig. 1), with the sealing that realizes described output shaft 1 (referring to Fig. 1) and withstand voltage, the end face of described openend 32 is provided with through hole 37, described through hole 37 is used for passing bolt (referring to Fig. 1), described bolt (referring to Fig. 1) is used for fixing described movable sealing pressure-resistant cabin cylinder 3 and described little pressure-resistant cabin cylinder 7 (referring to Fig. 1), the end face 33 of described openend 32 is provided with ladder platform 34, the end face of described ladder platform 34 is provided with screwed hole 38, described screwed hole 38 is used for fixing described dynamical system (not shown), and the periphery of described ladder platform 34 is provided with groove 39, and described groove 39 is used for placing the first static seal O type circle 6 (referring to Fig. 1).
During implementation, concrete thickness and the end surface thickness of described movable sealing pressure-resistant cabin cylinder 3, applicable caliber and the fluid media (medium) calculation of parameter of equipping according to different intraductal operations obtain.Described movable sealing pressure-resistant cabin cylinder 3 equips frame welding with outside intraductal operation or bolt is connected and fixed.
Particularly, as shown in Figure 1, the pressure hull that described little pressure-resistant cabin cylinder 7 is dynamical systems.The wall of described little pressure-resistant cabin cylinder 7 is provided with screw hole, and described screw hole is used for the installation high-voltage connector.Can with the sensor signal lines of intraductal operation equipment, be connected to pressure-resistant cabin inside by high pressure plug connector 8.Its mesohigh plug connector 8 is prior art, is not described further, and high pressure plug connector 8 generally comprises male and the female (a kind of structure of high pressure plug connector for example has been described in detail in detail among the patent application CN200610051255.6) of mutual-inserting type.
During implementation, the thickness parameter of described little pressure-resistant cabin cylinder 7, the pipeline inner fluid medium parameter of equipping according to different intraductal operations calculates.
Particularly, as shown in Figure 1, described little pressure-resistant cabin cylinder 7 is to be connected by screw or to be welded to connect with being fixedly connected with of described large pressure-resistant cabin cylinder 9.In order to reach better sealing, described little pressure-resistant cabin cylinder 7 is provided with static seal O type circle with described large pressure-resistant cabin cylinder 9 touching positions.In this example, described large pressure-resistant cabin cylinder 9 and described little pressure-resistant cabin cylinder 7 are by being welded to connect.
During implementation, the thickness parameter of described large pressure-resistant cabin cylinder 9, the pipeline inner fluid medium parameter of equipping according to different intraductal operations calculates.
Particularly, as shown in Figure 2, the two ends of described large pressure-resistant cabin cylinder 9 are blind end, be that described large pressure-resistant cabin cylinder 9 comprises the first blind end 91 and the second blind end 92, wherein, blind end near described little pressure-resistant cabin cylinder 7 is that the first blind end 91, the first blind ends 91 are provided with high-voltage connector.Can with the sensor signal lines of intraductal operation equipment, be connected to pressure-resistant cabin inside by high pressure plug connector 8.
Particularly, the blind end away from described little pressure-resistant cabin cylinder 7 in the described large pressure-resistant cabin cylinder 9 is that the second blind end 92, the second blind ends 92 are demountable structure, and described demountable structure is specially end cap 12.As shown in Figure 4, described end cap 12 comprises large step 13 and small stair 14, the end face of described large step 13 circumferentially evenly is provided with the through hole 15 of end cap, the through hole 15 of described end cap is used for passing screw 11, described screw 11 is used for fixing described end cap 12 and described large pressure-resistant cabin cylinder 9, the periphery of described small stair 14 is provided with annular groove 17, described annular groove 17 is used for holding the second static seal O type circle 10, the end face of described small stair 14 is provided with screw hole 16, described screw hole 16 is used for fixing described electronic devices and components, and electronic devices and components occur to roll and damage when preventing the motion of intraductal operation equipment.
Selecting hydraulic pressure or pneumatic system when the intraductal operation equipment is power source, hydraulic pressure or pneumatic components and parts and battery circuit board etc. can be installed in the sealing pressure-resistant cabin body, process the construction bolt hole of hydraulic fitting or pneumatic tube joint at the end face of large pressure-resistant cabin cylinder 9 first blind ends 91, hydraulic fitting or pneumatic tube joint are fixedly installed on large pressure-resistant cabin cylinder 9 first blind ends 91.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (7)

1. the sealed compartment of an electronic devices in pipeline operation equipment, it is characterized in that, described sealed compartment comprises the movable sealing pressure-resistant cabin cylinder that is fixedly connected with in turn, little pressure-resistant cabin cylinder and large pressure-resistant cabin cylinder, described movable sealing pressure-resistant cabin cylinder is installed with output shaft, one end of described output shaft stretches into described movable sealing pressure-resistant cabin cylinder, the other end stretches out described movable sealing pressure-resistant cabin cylinder, described output shaft and described movable sealing pressure-resistant cabin cylinder touching position are provided with movable sealing O type circle, described little pressure-resistant cabin cylinder is used for installing dynamical system, and described large pressure-resistant cabin cylinder is used for installing electronic devices and components.
2. the sealed compartment of electronic devices in pipeline operation equipment as claimed in claim 1, it is characterized in that, the one end sealing other end opening of described movable sealing pressure-resistant cabin cylinder, described blind end is provided with the hole, described hole is used for passing described output shaft, described hole wall is provided with the hole inner groovy, described hole inner groovy is used for placing movable sealing O type circle, the end face of described openend is provided with through hole, described through hole is used for passing bolt, described bolt is used for fixing described movable sealing pressure-resistant cabin cylinder and described little pressure-resistant cabin cylinder, the end face of described openend is provided with the ladder platform, and the end face of described ladder platform is provided with screwed hole, and described screwed hole is used for fixing described dynamical system, the periphery of described ladder platform is provided with groove, and described groove is used for placing the first static seal O type circle.
3. the sealed compartment of electronic devices in pipeline operation equipment as claimed in claim 1 is characterized in that the wall of described little pressure-resistant cabin cylinder is provided with screw hole, and described screw hole is used for the installation high-voltage connector.
4. the sealed compartment of electronic devices in pipeline operation equipment as claimed in claim 1 is characterized in that described little pressure-resistant cabin cylinder is to be connected by screw or to be welded to connect with being fixedly connected with of described large pressure-resistant cabin cylinder.
5. such as the sealed compartment of electronic devices in pipeline operation equipment as described in each claim of claim 1-4, it is characterized in that the two ends of described large pressure-resistant cabin cylinder are blind end, be provided with high-voltage connector near the blind end of described little pressure-resistant cabin cylinder.
6. the sealed compartment of electronic devices in pipeline operation equipment as claimed in claim 5, it is characterized in that, blind end away from described little pressure-resistant cabin cylinder in the described large pressure-resistant cabin cylinder is demountable structure, described demountable structure is end cap, described end cap comprises large step and small stair, the end face of described large step is provided with through hole, described through hole is used for passing screw, described screw is used for fixing described end cap and described large pressure-resistant cabin cylinder, the periphery of described small stair is provided with annular groove, described annular groove is used for holding the second static seal O type circle, and the end face of described small stair is provided with screw hole, and described screw hole is used for fixing described electronic devices and components.
7. such as the sealed compartment of electronic devices in pipeline operation equipment as described in each claim of claim 1-6, it is characterized in that described dynamical system is direct current machine or micro hydraulic system or pneumatic system.
CN201110276051.3A 2011-09-16 2011-09-16 Electronic device's sealed cabin body in pipeline operation equipment Active CN103002695B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104015013A (en) * 2014-06-16 2014-09-03 万泰机电工业(昆山)有限公司 Machining technology of metal pipe with end cover and manufactured metal pipe with end cover
CN107255676A (en) * 2017-07-11 2017-10-17 中国石油大学(北京) Pipeline exciting pigging experimental rig and method based on frequency sweep
CN108057693A (en) * 2016-11-08 2018-05-22 通用电气公司 Deposit removal device and method, deposit removal system
CN112484771A (en) * 2019-09-12 2021-03-12 中国石油天然气股份有限公司 Monitoring method of pipe cleaner
CN112550647A (en) * 2020-12-25 2021-03-26 中船重工西安东仪科工集团有限公司 Deep sea watertight pressure-resistant cabin
CN114932999A (en) * 2022-05-26 2022-08-23 中国科学院长春光学精密机械与物理研究所 Underwater signal intercommunicating type sealed cabin

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5975587A (en) * 1996-04-01 1999-11-02 Continental Industries, Inc. Plastic pipe repair fitting and connection apparatus
CN2539020Y (en) * 2002-05-22 2003-03-05 中国科学院沈阳自动化研究所 High-pressure sealer
CN2758194Y (en) * 2004-12-30 2006-02-15 中国科学院沈阳自动化研究所 Underwater control cabin
CN101028859A (en) * 2007-03-30 2007-09-05 哈尔滨工程大学 Reconfigured underwater robot structure
CN101087498A (en) * 2007-07-04 2007-12-12 中国科学院海洋研究所 Cylinder type waterproof pressure-endurable ballasting
CN201065181Y (en) * 2007-07-07 2008-05-28 中国科学院海洋研究所 Watertight pressure resistant cabin body
CN202262173U (en) * 2011-09-16 2012-05-30 中国石油天然气股份有限公司 Electronic device's sealed cabin body in pipeline operation equipment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5975587A (en) * 1996-04-01 1999-11-02 Continental Industries, Inc. Plastic pipe repair fitting and connection apparatus
CN2539020Y (en) * 2002-05-22 2003-03-05 中国科学院沈阳自动化研究所 High-pressure sealer
CN2758194Y (en) * 2004-12-30 2006-02-15 中国科学院沈阳自动化研究所 Underwater control cabin
CN101028859A (en) * 2007-03-30 2007-09-05 哈尔滨工程大学 Reconfigured underwater robot structure
CN101087498A (en) * 2007-07-04 2007-12-12 中国科学院海洋研究所 Cylinder type waterproof pressure-endurable ballasting
CN201065181Y (en) * 2007-07-07 2008-05-28 中国科学院海洋研究所 Watertight pressure resistant cabin body
CN202262173U (en) * 2011-09-16 2012-05-30 中国石油天然气股份有限公司 Electronic device's sealed cabin body in pipeline operation equipment

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104015013A (en) * 2014-06-16 2014-09-03 万泰机电工业(昆山)有限公司 Machining technology of metal pipe with end cover and manufactured metal pipe with end cover
CN104015013B (en) * 2014-06-16 2015-05-13 万泰机电工业(昆山)有限公司 Machining technology of metal pipe with end cover and manufactured metal pipe with end cover
CN108057693A (en) * 2016-11-08 2018-05-22 通用电气公司 Deposit removal device and method, deposit removal system
CN107255676A (en) * 2017-07-11 2017-10-17 中国石油大学(北京) Pipeline exciting pigging experimental rig and method based on frequency sweep
CN112484771A (en) * 2019-09-12 2021-03-12 中国石油天然气股份有限公司 Monitoring method of pipe cleaner
CN112550647A (en) * 2020-12-25 2021-03-26 中船重工西安东仪科工集团有限公司 Deep sea watertight pressure-resistant cabin
CN112550647B (en) * 2020-12-25 2024-06-04 中船重工西安东仪科工集团有限公司 Deep sea watertight pressure-resistant cabin
CN114932999A (en) * 2022-05-26 2022-08-23 中国科学院长春光学精密机械与物理研究所 Underwater signal intercommunicating type sealed cabin

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