CN105006630A - In-hole emission antenna apparatus used for coal mine underground electromagnetic wave wireless transmission - Google Patents
In-hole emission antenna apparatus used for coal mine underground electromagnetic wave wireless transmission Download PDFInfo
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- CN105006630A CN105006630A CN201510425807.4A CN201510425807A CN105006630A CN 105006630 A CN105006630 A CN 105006630A CN 201510425807 A CN201510425807 A CN 201510425807A CN 105006630 A CN105006630 A CN 105006630A
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- coal mine
- hollow coupling
- electromagnetic wave
- wireless transmission
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Abstract
The invention discloses an in-hole emission antenna apparatus used for coal mine underground electromagnetic wave wireless transmission. The in-hole emission antenna apparatus is characterized in that the apparatus comprises a hollow inner pup joint, a first hollow external joint, a second hollow external joint, and a central electrode, two ends of the hollow inner pup joint are respectively connected with the first hollow external joint and the second hollow external joint, the central electrode is arranged in the center of the hollow inner pup joint, two ends of the central electrode respectively extend into the first hollow external joint and the second hollow external joint, and two ends of the central electrode are respectively connected with inner walls of the first hollow external joint and the second hollow external joint via electrode supports. According to the apparatus, the emission polar distance is no less than 40cm, the intensity is high, the external diameter is small, the apparatus is hollow, and the requirement of coal mine underground measurement while drilling is guaranteed.
Description
Technical field
The invention belongs to coal mine underground measurement while drilling technical field, be specifically related to a kind of for transmission antenna device in the hole of underground coal mine electromagnetic wave wireless transmission.
Background technology
For ensureing coal mining ore deposit safety and high efficiency and improving gas utilization rate, usually need at underground coal mine a large amount of mash gas pumping drilling of constructing.Lower drilling cost to improve drilling quality, measurement-while-drilling system starts the various directional drilling machines being applied to underground coal mine, to instruct the design and construction of mash gas pumping drilling.Drilling measuring technology is that the real-time measurement of borehole engineering parameter and transmission provide technical support.Conventional center leads to that cable formula measurement-while-drilling system cost is very high and reliability is poor, and mud-pulse formula measurement-while-drilling system message transmission rate is low and can only one-way communication, and electromagnetic transmission wireless drilling measuring system transmission rate is higher and reliability is higher.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of for transmission antenna device in the hole of underground coal mine electromagnetic wave wireless transmission.
For achieving the above object, technical scheme of the present invention is achieved in that
Embodiments provide a kind of for transmission antenna device in the hole of underground coal mine electromagnetic wave wireless transmission, this device comprises pipe nipple in hollow, the first hollow coupling, the second hollow coupling, central electrode; In described hollow, the two ends of pipe nipple are connected with the first hollow coupling, the second hollow coupling respectively, described central electrode is arranged on the center of pipe nipple in hollow and two ends extend in the first hollow coupling, the second hollow coupling respectively, and the two ends of described central electrode are connected respectively by the inwall of electrode suppor with the first hollow coupling, the second hollow coupling.
In such scheme, in described hollow, pipe nipple outer wall is coated with outer coating.
In such scheme, described electrode suppor is the annulus of a Center-to-Center electrode coupling, and the excircle of annulus is evenly provided with at least three projections, and described at least three projections connect respectively by the inwall of fixed screw first hollow coupling or the second hollow coupling.
Compared with prior art, beneficial effect of the present invention:
(1) the present invention adopts special material and technique, increases emitter distance when ensureing insulating short section intensity, and emitter is apart from being not less than 40cm.In petroleum industry existing electromagnetic transmission wireless drilling measuring equipment well, the pole span of transmitting antenna only has 1cm usually.Although emitter distance can be increased by the little pole span antenna of cascade, emission effciency can be reduced simultaneously.
(2) intensity of the present invention is high, the same with the intensity of steel drill rod; And the intensity of transmitting antenna is less than the intensity of drilling rod used in petroleum industry well used.
(3) the little and hollow of external diameter of the present invention, to ensure the requirement of coal mine underground measurement while drilling; And transmission antenna device external diameter is large in petroleum industry well used, power large, do not meet underground coal mine requirement of explosion proof.
Accompanying drawing explanation
Fig. 1 provides a kind of structural representation for transmission antenna device in the hole of underground coal mine electromagnetic wave wireless transmission for the embodiment of the present invention;
Fig. 2 provides a kind of structural representation for the electric machine support of transmission antenna device in the hole of underground coal mine electromagnetic wave wireless transmission for the embodiment of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The embodiment of the present invention provides a kind of for transmission antenna device in the hole of underground coal mine electromagnetic wave wireless transmission, and as shown in Figure 1, this device comprises pipe nipple 1, first hollow coupling 2, second hollow coupling 7, central electrode 4 in hollow; In described hollow, the two ends of pipe nipple 1 are connected with the first hollow coupling 2, second hollow coupling 7 respectively, form insulating short section; Described central electrode 4 is arranged on the center of pipe nipple 1 in hollow and two ends extend in the first hollow coupling 2, second hollow coupling 7 respectively, and the two ends of described central electrode 4 are connected respectively by the inwall of electrode suppor 5 with the first hollow coupling 2, second hollow coupling 7.
In described hollow, pipe nipple 1 is made up of nonmagnetic metal material, and in described hollow, pipe nipple 1 keeps coaxial with the first hollow coupling second hollow coupling 7, and two hollow couplings are fixedly connected with the two ends of pipe nipple in hollow 1 respectively by screw thread.
In described hollow, pipe nipple 1 outer wall is coated with outer coating 3; namely outer surface and end face are all coated with carbon fibre composite; the mixed material layer covering diamond particles and ebonite and form on carbon fibre composite; in described hollow, the external diameter of pipe nipple 1 will be slightly less than the external diameter of the first hollow coupling 2, second hollow coupling 7, to protect the mixed material layer in hollow outside pipe nipple 1.
A described coupling 7 is threaded connection with upper drilling rod, and another coupling 2 is threaded connection with the outer drilling rod of electromagnetic transmission wireless drilling measuring equipment.
As shown in Figure 2, described electrode suppor 5 is the annulus that a Center-to-Center electrode 4 mates, and the excircle of annulus is evenly provided with at least three projections, and described at least three projections connect respectively by the inwall of fixed screw 6 first hollow coupling 2 or the second hollow coupling 7.
The present invention can realize isolation and the insulation of the outer drilling rod of electromagnetic transmission wireless drilling measuring equipment and upper drilling rod, central electrode 4 is a pole of launching dipole simultaneously, launch dipole another the very outer drilling rod of electromagnetic transmission wireless drilling measuring equipment and drill bit, electromagnetic transmission wireless drilling measuring system by this dipole to electromagnetic signals in stratum.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (3)
1. for a transmission antenna device in the hole of underground coal mine electromagnetic wave wireless transmission, it is characterized in that, this device comprises pipe nipple in hollow (1), the first hollow coupling (2), the second hollow coupling (7), central electrode (4); In described hollow, the two ends of pipe nipple (1) are connected with the first hollow coupling (2), the second hollow coupling (7) respectively, described central electrode (4) is arranged on the center of pipe nipple in hollow (1) and two ends extend in the first hollow coupling (2), the second hollow coupling (7) respectively, and the two ends of described central electrode (4) are connected respectively by the inwall of electrode suppor (5) with the first hollow coupling (2), the second hollow coupling (7).
2. according to claim 1 for transmission antenna device in the hole of underground coal mine electromagnetic wave wireless transmission, it is characterized in that: in described hollow, pipe nipple (1) outer wall is coated with outer coating (3).
3. according to claim 1 and 2 for transmission antenna device in the hole of underground coal mine electromagnetic wave wireless transmission, it is characterized in that: described electrode suppor (5) is the annulus that a Center-to-Center electrode (4) mates, and the excircle of annulus is evenly provided with at least three projections, and described at least three projections connect respectively by the inwall of fixed screw (6) first hollow coupling (2) or the second hollow coupling (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510425807.4A CN105006630A (en) | 2015-07-20 | 2015-07-20 | In-hole emission antenna apparatus used for coal mine underground electromagnetic wave wireless transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510425807.4A CN105006630A (en) | 2015-07-20 | 2015-07-20 | In-hole emission antenna apparatus used for coal mine underground electromagnetic wave wireless transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105006630A true CN105006630A (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510425807.4A Pending CN105006630A (en) | 2015-07-20 | 2015-07-20 | In-hole emission antenna apparatus used for coal mine underground electromagnetic wave wireless transmission |
Country Status (1)
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| CN (1) | CN105006630A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004051050A1 (en) * | 2002-12-02 | 2004-06-17 | Baker Hughes Incorporated | Insulative gap sub assembly and methods |
| CN101291015A (en) * | 2008-06-11 | 2008-10-22 | 中国石油集团钻井工程技术研究院 | Electromagnetic emitting antenna along with drill, down-hole data communication system and method |
| CN201144695Y (en) * | 2007-10-12 | 2008-11-05 | 中国石化集团胜利石油管理局钻井工艺研究院 | Novel signal transmission drill string |
| CN102305029A (en) * | 2011-08-12 | 2012-01-04 | 中国地质大学（武汉） | Insulating pup joint used for underground mine drilling and manufacture method thereof |
| US20150013963A1 (en) * | 2012-01-25 | 2015-01-15 | Bruce McGarian | Insulating Component |
-
2015
- 2015-07-20 CN CN201510425807.4A patent/CN105006630A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004051050A1 (en) * | 2002-12-02 | 2004-06-17 | Baker Hughes Incorporated | Insulative gap sub assembly and methods |
| CN201144695Y (en) * | 2007-10-12 | 2008-11-05 | 中国石化集团胜利石油管理局钻井工艺研究院 | Novel signal transmission drill string |
| CN101291015A (en) * | 2008-06-11 | 2008-10-22 | 中国石油集团钻井工程技术研究院 | Electromagnetic emitting antenna along with drill, down-hole data communication system and method |
| CN102305029A (en) * | 2011-08-12 | 2012-01-04 | 中国地质大学（武汉） | Insulating pup joint used for underground mine drilling and manufacture method thereof |
| US20150013963A1 (en) * | 2012-01-25 | 2015-01-15 | Bruce McGarian | Insulating Component |
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Application publication date: 20151028 |
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| RJ01 | Rejection of invention patent application after publication |