CN102255419B - Power station generating set oil groove signal extension apparatus - Google Patents
Power station generating set oil groove signal extension apparatus Download PDFInfo
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- CN102255419B CN102255419B CN 201110212279 CN201110212279A CN102255419B CN 102255419 B CN102255419 B CN 102255419B CN 201110212279 CN201110212279 CN 201110212279 CN 201110212279 A CN201110212279 A CN 201110212279A CN 102255419 B CN102255419 B CN 102255419B
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- signal
- panel
- oil groove
- conduit
- cable
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- 238000007789 sealing Methods 0.000 claims abstract description 19
- 238000012856 packing Methods 0.000 claims description 15
- 229920000459 Nitrile rubber Polymers 0.000 claims description 5
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 3
- 230000005672 electromagnetic field Effects 0.000 abstract description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 3
- 230000035939 shock Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The invention relates to a power station generating set oil groove signal extension apparatus which comprises a pedestal and a panel. The pedestal and the panel are in sealed connection to form internal space. A central section of the pedestal extends a conduit which communicates with the internal space. An end of the conduit is in threaded connection with a first cable jacket. The panel is provided with a plurality of second cable jackets. A plurality of signal cables fixed by the first cable jacket go through the conduit and the internal space, and go out from the second cable jackets. The signal lead out apparatus of the present invention has the advantages of novel design, vibration proof, impact resistance, high grade of sealing pressure, high reliability, reduction of interference to an oil groove sensor signal by electromagnetic field, reduction of site construction difficulty, improvement of site construction efficiency and cost saving. Thereby, the signal extension apparatus of the present invention is especially suitable for extension of a power station generating set large bearing oil groove sensor signal.
Description
Technical field
The present invention relates to the signal ejector, more particularly, relate to the isolated plant when sensor signal is drawn in each big bearing oil groove of plant generator unit.
Background technology
Each big bearing oil groove of plant generator unit like thrust bearing oil groove, guide bearing oil groove etc., all is airtight environment.Various transducers in the oil groove are for example measured the temperature sensor of thrust bearing, guide bearing, the vibration ferry-boat transducer of measurement generator's motor shaft vibration ferry-boat amount etc., all need from the closed environment of oil groove, the parameter signal of set state operation be drawn.These signal sections are used for generator protection, and the accuracy of these signals, stability concern safety, stable operation and the life-span of unit.
Plant generator unit oil groove signal ejector need meet the following conditions:
(1) this device is installed on the unit oil groove wall, owing to can produce bigger vibration in the unit running process, so this device must be shockproof.
(2) this device is installed on the unit oil groove wall; Because the rotation of macro-axis can drive the inner oil stream impact signal cable of oil groove in the unit running process; Therefore this device must be shock-resistant; Can fine guard signal cable, reduce of the impact of oil stream, the possibility of erasure signal cable broken string to signal cable.
(3) this device is installed on the unit oil groove wall, and there is the pressure less than 5KG general oil groove inside, so this device must be withstand voltage, and sensor signal must solve the problem of long term seal when this device is drawn.
(4) because the signal cable in the oil groove is in highfield and the magnetic field environment, so this device can not break the shielding that ring sensor is drawn signal cable when drawing sensor signal, prevents in the interference signal entering test macro.
(5) because generating set oil groove surrounding environment is moist, and the space is narrow and small, so this device must be antirust, and structure is wanted rationally to make things convenient for site operation.
The signal ejector that present most of power station unit oil groove adopts such as Fig. 1 are to shown in Figure 3, and perforate 102 on oil groove wall 101, and 55 pin quick connectors are installed, and are used for the inside and outside switching of signal cable.Specifically as shown in Figure 1; Over on the oil groove wall 101 is the hole 102 of 36.5mm directly; The M3 screw hole 103 that it is 34mm that hole 102 is provided with 4 spacings on every side; Four screw holes 103 are used for fixing the socket 104 and the gasket seal of 55 pin quick connectors, and are as shown in Figure 2, and the contact pin 105 that socket is 104 li adopts the inner signal cable of soldering welding oil groove.The plug 106 of quick connector is as shown in Figure 3, and is connected fast between the socket 104, and plug 106 outer contact pins 107 adopt the outside signal cable of solderings welding oil grooves.
Adopt the shortcoming of this spininess quick connector to be: unit runs up; The generating unit speed that has reaches 750 rpms; Oil stream is under the drive of unit macro-axis; Sensor signal cable generation to arranging in the oil groove is impacted greatly, fixes 55 pin quick connectors through four M3 screws, and its fixation power can not satisfy unit vibration and the oily at a high speed impact of flowing signal cable and connector connecting portion of unit; Adopt the sealing means of four M3 screw in compression gasket seals,,, have the phenomenon of leakage of oil in unit long-time running process because thrust is less; The spininess quick connector adopts the inside and outside soldered sensor signal cable of soldering, need in 36mm, weld 50 multiple conducting wires, and it is big that difficulty of construction is deposited at the scene; And under the big situation of unit vibration; Cause the signal saltus step easily, directly cause unit to jump machine, electrical network is produced bigger impact; Adopt the spininess quick connector, the shielding of signal cable is disconnected, and electromagnetic interference can influence the transmission of signal.
Summary of the invention
The technical problem that the present invention will solve is, to the above-mentioned defective of prior art, provide a kind of against shock, shock-resistant, the sealing load grade high, the integrated signal ejector of good reliability.
The technical solution adopted for the present invention to solve the technical problems is: propose a kind of signal ejector; Comprise be tightly connected with form an inner space base and panel; The middle part of said base extends outward the conduit that connects with said inner space; The end thread of said conduit connects first cable jacket; Said panel is provided with a plurality of second cable jackets that are threaded, and many signal cables fix and pass said conduit by said first cable jacket and draw from corresponding a plurality of second cable jackets on the said panel said inner space.
In signal ejector of the present invention; Said base comprises base plate and along the extended sidewall of the periphery of base plate; And on the outer face of said sidewall, extend a flange; Said conduit stretches out from the middle part of said base plate, and said panel is installed in the step of said sidewall outer face upper flange formation.Among the embodiment, between the outer face of said panel and said sidewall gasket seal is installed, and said panel is connected through a plurality of bolted with said sidewall.Said gasket seal is the acrylonitrile-butadiene rubber pad.Said bolt is a hexagon socket head cap screw, and flat shim and spring shim are installed between bolt head and panel.
In signal ejector of the present invention; Said first cable jacket comprises the chuck body and the packing nut of hollow; Said chuck body comprises stage portion and first external thread part and second external thread part that are formed on said stage portion two ends; Said first external thread part be connected with said packing nut thread and said first external thread part in coaxial clamping ring and the clamp jaw of being provided with, the inner conical surface of said clamp jaw and said packing nut offsets, said second external thread part is threaded with said conduit.
In signal ejector of the present invention; Said second cable jacket comprises the chuck body and the packing nut of hollow; Said chuck body comprises stage portion and first external thread part and second external thread part that are formed on said stage portion two ends; Said first external thread part be connected with said packing nut thread and said first external thread part in coaxial clamping ring and the clamp jaw of being provided with, the inner conical surface of said clamp jaw and said packing nut offsets, said second external thread part is threaded with said panel.
In signal ejector of the present invention, between said second external thread part and the said stage portion sealing ring is installed.Said sealing ring is the O RunddichtringO.
In signal ejector of the present invention, said clamping ring and clamp jaw are processed by elastomeric material.
The signal ejector of embodiment of the present invention has following beneficial effect:
1, signal ejector of the present invention adopts integrated outlet scheme, does not cut off the sensor signal cable shield, and oil groove internal sensor signal cable extension is come out, and solves the influence of electromagnetic interference to sensor signal.
2, the mode of employing of the present invention and oil groove wall welding is installed the signal ejector, realizes and the oil groove positiver sealing, realizes compression resistance, shock-resistant.
3, signal ejector of the present invention is threaded with the conduit of signal ejector at the inner metallic cable chuck that adopts of oil groove, and cable jacket can fix to clamp tens groups of signal cables together, plays anti-oil stream percussion.
When 4, signal ejector of the present invention was drawn signal cable in the oil groove outside, every signal cable passed from the corresponding metal cable jacket, can realize the long term seal of IP68.
5, signal ejector head of the present invention adopts similar flange arrangement; Adopt the sealing of oil resistant butadiene-acrylonitrile rubber sheet gasket between base and the panel; And through the bolt seals connection; Screwed hole and each be set on panel the metallic cable chuck is supporting and be tightly connected, improve sealing grade and reliability, prevent oil groove leakage problems in the long-term work.
6, the whole material of signal ejector of the present invention can be stainless steel, is applicable to on-the-spot moist environment, plays good rust inhibition.
Signal ejector modern design of the present invention, vibration proof, shock-resistant, the sealing load grade high, good reliability, reduces the interference of electromagnetic field to sensor signal in the oil groove, reduces the site operation difficulty, improves site operation efficient, practices thrift cost.Thereby signal ejector of the present invention is particularly useful for drawing of sensor signal in each big bearing oil groove of plant generator unit.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the sketch map that the oil groove wall of quick connector is installed in the prior art;
Fig. 2 is the structural representation of the socket part of the quick connector that adopts of prior art;
Fig. 3 is the structural representation of the plug portion of the quick connector that adopts of prior art;
Fig. 4 is the structural representation of signal ejector according to an embodiment of the invention;
Fig. 5 is the structural representation of the panel of signal ejector shown in Figure 4;
Fig. 6 is the structural representation according to the cable jacket of one embodiment of the invention employing.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Fig. 4 is the structural representation of signal ejector according to an embodiment of the invention.As shown in Figure 4, signal ejector 200 comprises base 210 and panel 220, and base 210 is tightly connected with panel 220 and forms an inner space 214.Specifically, base 210 is drum shape, comprises circular bottom plate 211 and along the extended sidewall 212 of the periphery of base plate 211, and on the outer face of sidewall 212, extends flange 213.Panel 220 is installed in the step that the sidewall 212 outer face upper flanges 213 of base 210 form, and between panel 220 and sidewall 212 outer faces, gasket seal 270 is installed.The acrylonitrile-butadiene rubber pad of sealing pad 270 preferred oil resistants.In conjunction with Fig. 4 and shown in Figure 5; Panel 220 evenly is provided with eight counterbores 222 near its periphery; Through eight for example the sidewall 212 of M6 hexagon socket head cap screw 260 and base 210 be fastenedly connected; And between bolt head and panel 220 supporting flat shim 261 and the spring shim 262 of being equipped with, so that good pretightning force to be provided.
As shown in Figure 4 again, base plate 211 middle parts of base 210 extend outward a conduit 230 vertically.Conduit 230 is integrated with base 210, and conduit 230 connects with base inner space 214.Whole signal ejector 200 passes the installing hole 102 on the oil groove wall 101 through conduit 230 and fixes with oil groove wall welding.The end thread that stretches in the oil groove of conduit 230 connects first cable jacket 240.First cable jacket 240 is used for the oil groove inner 301 of many signal cables is fixed to clamp together.Signal cable can pass the inner space 214 that conduit 230 gets in the base 210 then, draws from panel 220 then.
Further combine Fig. 4 and shown in Figure 5, panel 220 is provided with a plurality of second cable jackets 250, and wherein each second cable jacket 250 is used for the outer end of a corresponding signal cable 302 is fixing and draw.Specifically as shown in Figure 5, be evenly distributed with a plurality of screwed holes 223 on the panel 220, be threaded with corresponding a plurality of second cable jackets 250.And, sealing ring 280 (for example O RunddichtringO) is set between panel 220 and each second cable jacket 250 realizes positiver sealing.
Fig. 6 is the structural representation according to the cable jacket of one embodiment of the invention employing.As shown in Figure 6, this cable jacket 600 is made up of chuck body 610, packing nut 620, clamping ring 630, the clamp jaw 640 of hollow.Chuck body 610 comprises stage portion 612 and first external thread part 611 and second external thread part 613 that are formed on stage portion 612 two ends.Wherein, second external thread part 613 is used for being connected with other parts that match, and, be provided with sealing ring 650 (for example O RunddichtringO) between second external thread part 613 and the stage portion 612, be used to realize with its parts that are connected between sealing.For example, when cable jacket 600 during as first cable jacket 240 shown in Fig. 4, second external thread part 613 is threaded with the screw-internal thread fit realization of conduit 102.When cable jacket 600 during as second cable jacket 250 shown in Fig. 4, second external thread part 613 is threaded with screwed hole 223 on the panel 220.
First external thread part 611 of the chuck body 610 packing nut 620 that is used to be threaded.And first external thread part, 611 inside are coaxial to be provided with clamping ring 630 and clamp jaw 640, and the inner conical surface 621 of the outer end of clamp jaw 640 and packing nut 620 offsets.Clamping ring 630 and clamp jaw 640 are processed by elastomeric material, and for example, clamping ring 630 can be the acrylonitrile-butadiene rubber material, and clamp jaw 640 is a nylon material.After signal cable is passed by chuck body 610, clamp jaw 640, clamping ring 630 and packing nut 620 inside; Tighten packing nut 620; The inner conical surface 621 compression clamp jaws 640 of packing nut 620; Make clamp jaw 640 hold clamping ring 630 tightly and do radial contraction, thereby be locked signal cable.
Signal ejector of the present invention can be installed at the scene very easily, and detailed process is following:
During on-the-spot the installation, earlier the conduit 230 of base 210 rear ends of signal ejector 200 is penetrated in the oil groove and stretches into the position of about 5mm in the oil groove from oil groove wall 101, outside oil groove wall 101, adopt arc weldings to weld on conduit 230 and oil groove wall 101 then.Welded and to have carried out the welded seal performance test with the dye penetrant test agent.Then, the many sensor signal cables that oil groove is inner concentrate in together from first cable jacket 240 and pass, and penetrate in the inner space 214 of base 210 along the conduit 230 of signal ejector 200 always.To be installed on the panel 220 with corresponding a plurality of second cable jackets 250 of signal cable quantity but do not lock, each the root signal cable in the base 210 will be passed from corresponding second cable jacket 250.Then, movable panel 220 is to base 210 and with hexagon socket head cap screw 260 lockings.Then, first cable jacket 240 of locking in the oil groove with many sensor signal cables at the oil groove internal fixation.At last, lock each second cable jacket 250 with fixing and positiver sealing with the signal cable of drawing.
Signal ejector modern design of the present invention, vibration proof, shock-resistant, the sealing load grade high, good reliability, reduces the interference of electromagnetic field to sensor signal in the oil groove, reduces the site operation difficulty, improves site operation efficient, practices thrift cost.And signal ejector integral body of the present invention can adopt stainless steel to process, and is applicable to on-the-spot moist environment, plays good rust inhibition.Thereby signal ejector of the present invention is particularly useful for drawing of sensor signal in each big bearing oil groove of plant generator unit.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. signal ejector; It is characterized in that; Comprise the base and the panel that are tightly connected to form an inner space; The middle part of said base extends outward the conduit that connects with said inner space; The end thread of said conduit connects first cable jacket, and said panel is provided with a plurality of second cable jackets that are threaded, and many signal cables fix and pass said conduit by said first cable jacket and draw from corresponding a plurality of second cable jackets on the said panel said inner space;
Wherein, Said first cable jacket and second cable jacket include the chuck body and the packing nut of hollow; Said chuck body comprises stage portion and first external thread part and second external thread part that are formed on said stage portion two ends; Said first external thread part be connected with said packing nut thread and said first external thread part in coaxial clamping ring and the clamp jaw of being provided with, the inner conical surface of said clamp jaw and said packing nut offsets;
Wherein, second external thread part of said first cable jacket is threaded with said conduit, and second external thread part of said second cable jacket is threaded with said panel.
2. signal ejector according to claim 1; It is characterized in that; Said base comprises base plate and along the extended sidewall of the periphery of base plate; And on the outer face of said sidewall, extend a flange, said conduit stretches out from the middle part of said base plate, and said panel is installed in the step of said sidewall outer face upper flange formation.
3. signal ejector according to claim 2 is characterized in that, between the outer face of said panel and said sidewall gasket seal is installed, and said panel is connected through a plurality of bolted with said sidewall.
4. signal ejector according to claim 3 is characterized in that, said gasket seal is the acrylonitrile-butadiene rubber pad.
5. signal ejector according to claim 3 is characterized in that, said bolt is a hexagon socket head cap screw, and flat shim and spring shim are installed between bolt head and panel.
6. signal ejector according to claim 1 is characterized in that, between said second external thread part and the said stage portion sealing ring is installed.
7. signal ejector according to claim 6 is characterized in that, said sealing ring is the O RunddichtringO.
8. signal ejector according to claim 1 is characterized in that said clamping ring and clamp jaw are processed by elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110212279 CN102255419B (en) | 2011-07-27 | 2011-07-27 | Power station generating set oil groove signal extension apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110212279 CN102255419B (en) | 2011-07-27 | 2011-07-27 | Power station generating set oil groove signal extension apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102255419A CN102255419A (en) | 2011-11-23 |
| CN102255419B true CN102255419B (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110212279 Expired - Fee Related CN102255419B (en) | 2011-07-27 | 2011-07-27 | Power station generating set oil groove signal extension apparatus |
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| Country | Link |
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| CN (1) | CN102255419B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904374A (en) * | 2012-11-02 | 2013-01-30 | 江苏大全封闭母线有限公司 | Wire leading device for cable |
| CN103388710A (en) * | 2013-07-30 | 2013-11-13 | 南通米兰特电气有限公司 | Porous angle iron jacket of cable |
| CN106451899B (en) * | 2016-12-07 | 2018-11-09 | 深圳市泰士特科技股份有限公司 | Generating set signal draws switching device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4702710A (en) * | 1986-06-20 | 1987-10-27 | Georgia Tech Research Corporation | Waterproof seal assembly for electrical connector |
| JPH0282403A (en) * | 1988-09-17 | 1990-03-23 | Toshiba Lighting & Technol Corp | Luminaire |
| US5113101A (en) * | 1991-02-11 | 1992-05-12 | Oil Dynamics, Inc. | Watertight seal for plug-in type pothead |
| JP2893374B2 (en) * | 1994-05-13 | 1999-05-17 | 三菱電線工業株式会社 | Connector cable protection member fixing device |
| JPH0982403A (en) * | 1995-09-07 | 1997-03-28 | Yazaki Corp | Cable terminal connector and waterproofing unit |
| US6443780B2 (en) * | 1999-08-23 | 2002-09-03 | Baker Hughes Incorporated | Conductor assembly for pothead connector |
| US6482036B1 (en) * | 2002-06-13 | 2002-11-19 | Blaine L. Broussard | Waterproof electrical connector |
| CN101521333A (en) * | 2009-04-10 | 2009-09-02 | 湖南中科电气股份有限公司 | High-current, waterproof and high-temperature resisting cable connector |
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| CN102255419A (en) | 2011-11-23 |
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Address after: Nanshan District science and Technology Park Ma Liuzhou Industrial District of Shenzhen City, Guangdong province 518052 78 2 floor Patentee after: SHENZHEN TESTECK TECHNOLOGY CO.,LTD. Address before: Nanshan District science and Technology Park Ma Liuzhou Industrial District of Shenzhen City, Guangdong province 518052 78 2 floor Patentee before: SHENZHEN CITY TESTECK TECHNOLOGY Co.,Ltd. |
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Denomination of invention: Power station generating set oil groove signal extension apparatus Effective date of registration: 20181226 Granted publication date: 20121205 Pledgee: Shenzhen high tech investment and financing Company limited by guarantee Pledgor: SHENZHEN TESTECK TECHNOLOGY CO.,LTD. Registration number: 2018990001263 |
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Granted publication date: 20121205 |