CN102315523A - Earthing method and device of pipeline station instrument equipment - Google Patents
Earthing method and device of pipeline station instrument equipment Download PDFInfo
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- CN102315523A CN102315523A CN2010102270897A CN201010227089A CN102315523A CN 102315523 A CN102315523 A CN 102315523A CN 2010102270897 A CN2010102270897 A CN 2010102270897A CN 201010227089 A CN201010227089 A CN 201010227089A CN 102315523 A CN102315523 A CN 102315523A
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Abstract
The invention relates to an earthing method and device of pipeline station instrument equipment and a construction method of the earthing device. The earthing device is characterized in that: a gland earthing ring (1) is additionally arranged between an electric port (13) of the instrument equipment and an anti-explosion gland (2), the bottom of the gland earthing ring (1) is connected with a cable lug I (9) through a bolt I (7) and a nut (8), the cable lug I (9) is connected with an earthing conductor (5), the other end of the earthing conductor (5) is connected with a cable lug II (10), the cable lug II (10) is connected to instrument earthing flat steel (11) through a bolt (15) and a nut, the instrument earthing flat steel (11) is connected with electric grounding net flat steel (12), and the grounding conductor (5) is fixed with an instrument protection tube (4) through a cable binding strip I (6), a cable binding strip II (16) and a cable binding strip III (17). According to the invention, the precision and the stability of the instrument equipment are improved safely, the operation and maintenance are convenient, and the equipment investment and the construction cost are reduced.
Description
Technical field
The present invention is field, a kind of pipeline station instrumentation earthing method and device.Relate to the pipe-line system technical field.
Background technology
Ground connection for field, pipeline station instrumentation; Engineering all adopted ground connection being directly connected to of instrumentation was buried on the instrument protection pipe on ground in the past; The method that is grounded through instrument protection pipe and contacting of the earth, or the method that is grounded of the ground connection of the process pipelines through being connected, process equipment with instrument.
If the employing of the ground connection of instrumentation is directly connected on the instrument protection pipe that buries ground; Realize the method for instrumentation ground connection through the instrument protection pipe with contacting of the earth; Because the floor space of field, pipeline station is big; Instrumentation distributes wide, and the earthing potential of region is different, then certainly will produce potential difference between the zones of different instrumentation; With regard to being easy to the instrumentation at scene is caused damage when the heavy current that thunderstorm hour produced takes place, the field instrument equipment that is not installed on the process pipelines then is easy to directly receive the attack of thunder and lightning and under the situation that electric current is released fast, not damage instrumentation; If adopt through the process pipelines that is connected with instrumentation or the ground connection of process equipment and realize the method for instrumentation ground connection; Owing to link to each other through the lead cross-over connection between process pipelines and the process equipment; And with process equipment ground connection, and then the ground connection of realizing instrumentation is if the cross-over connection lead is owing to connecting insecure or with the passing of time reason disconnection such as corrosion; Same owing to produce potential difference, when taking place, the heavy current that thunderstorm hour produced the instrumentation at scene is caused damage with regard to being easy to; Simultaneously since much be installed in instrumentation on the process pipelines because process pipelines is long away from process equipment; So just cause field instrument equipment just far through the ground connection of process equipment; When taking place, the heavy current that thunderstorm hour produced just can not release as early as possible with regard near point; Rush of current causes damage with regard to being easy to the instrument at scene for a long time, therefore no matter adopts above-mentioned which kind of earthing method, all can have influence on fail safe, reliability, stability and the accuracy of instrumentation.
Summary of the invention
The objective of the invention is invention a kind ofly makes safe, the accuracy and the stability that improve field instrument equipment that pipe-line construction more is tending towards standardization, modularization, hommization, the instrumentation that keeps the scene intact, makes it reduce working procedure and material, makes things convenient for operation maintenance, reduces field, the pipeline station instrumentation earthing method and the device of equipment investment and operating expenses.
Deficiency to the instrumentation earthing method existence of existing field, pipeline station; Earthing method of the present invention is that the housing ground with the instrumentation electric interfaces 13 of station instrumentation 14 is connected with instrumentation grounding band steel 11 usefulness leads, and instrumentation grounding band steel 11 welds with band steel 12 power ground again.
The present invention adopts the equipotential grounding requirement function that can realize all instrumentations behind the instrumentation earthing method for field, pipeline station.This equipment adopt explosion-proof at a distance from blue 2, at a distance from blue ground loop 1, earth lead 5 and instrumentation grounding band steel 11, instrument protection pipe 4, cable tie band, bolt, nut and line nose 1. 9, line nose 2. 10, and be applicable to the instrumentation ground connection at all stations.Can carry out the scene adjustment according to the size of the instrumentation of each engineering and setting height(from bottom), installation site.
The formation of apparatus of the present invention is as shown in Figure 1, by at a distance from blue ground loop 1, explosion-proof at a distance from blue 2, line nose 1. 9, the line nose 2. 10, bolt 1. 7, bolt 2. 15, nut 8, earth lead 5, instrumentation grounding band steel 11, cable tie band 1. 6, the cable tie band 2. 16, the cable tie band 3. 17, instrument protection pipe 4 forms.Usually the instrumentation electric interfaces 13 of field, pipeline station instrumentation 14 patches the place with instrument cable 3, and instrument cable 3 is outer to be with explosion-proofly at a distance from blue 2, and epimere is enclosed within 4 li of instrument protection pipes to instrument cable 3 to ground from underground; This device is instrumentation electric interfaces 13 and explosion-proof installing additional between blue 2 at a distance from blue ground loop 1; At a distance from the bottom of blue ground loop 1 through bolt 1. 7 and nut 8 connecting line noses 1. 9; The line nose is 9 earth leads 5 1.; The other end wiring nose of earth lead 5 2. 10; 2. the line nose 10 is connected to instrumentation grounding band steel 11 through bolt 15 and nut, and instrumentation grounding band steel 11 connects electric power grounding grid band steels 12, earth lead 5 through the cable tie band 1. 6, the cable tie band 2. 16, the cable tie band is 3. 17 fixing with instrument protection pipe 4.
Wherein:
At a distance from blue ground loop 1 is to be used to connect explosion-proof electric interfaces 13 at a distance from blue 2 inlet wires and instrumentation 14 ground connection connection is provided; At a distance from the size of blue ground loop 1 and the instrumentation electric interfaces 13 and explosion-proof separated blue 2 consistent size of the instrumentation that is connected 14; Is brass nickel plating at a distance from blue ground loop 1 with explosion-proof material at a distance from blue 2; Explosive-proof grade EXdII BT4, degree of protection are IP65;
Bolt 1. 7, bolt 2. 15 and nut 8 be supporting bolt and nut.
Instrumentation adopts the equipotential grounding requirement function that can realize all instrumentations behind the earthing device, and safe, the accuracy and the stability that improve field instrument equipment of the instrumentation that can keep the scene intact, makes pipe-line construction more be tending towards standardization, modularization, hommization, minimizing working procedure and material, makes things convenient for operation maintenance, reduces equipment investment and operating expenses.
The present invention is applicable to the earthing mode of all field, pipeline station field instrument equipment.Ground connection for the field instrument equipment of long-distance transport pipes engineering, oil-gas field surface engineering, oil depot engineering has huge application space and good economic benefit.
Description of drawings
Field, Fig. 1 pipeline station instrumentation earthing device
Wherein 1-is explosion-proof at a distance from blue at a distance from blue ground loop 2-
3-instrument cable 4-instrument cable protection tube
5-earth lead 6-cable tie band 1.
The 7-bolt is the 8-nut 1.
1. 10-line nose is 2. for 9-line nose
11-instrumentation grounding band steel 12-is band steel power ground
13-instrumentation electric interfaces 14-instrumentation
2. 16-cable tie band is 2. for the 15-bolt
17-cable tie band is 18-ground 3.
Embodiment
Embodiment. this example be in Lanzhou-Zhengzhou-field instrument equipment ground method and apparatus that Changsha processed oil pipeline engineering test is used.This routine earthing method is that the housing ground with the instrumentation electric interfaces 13 of station instrumentation 14 is connected with instrumentation grounding band steel 11 usefulness leads, and instrumentation grounding band steel 11 welds with band steel 12 power ground again.
Its formation is as shown in Figure 1, by at a distance from blue ground loop 1, explosion-proof at a distance from blue 2, line nose 1. 9, the line nose 2. 10, bolt 1. 7, bolt 2. 15, nut 8, earth lead 5, instrumentation grounding band steel 11, cable tie band 1. 6, the cable tie band 2. 16, the cable tie band 3. 17, instrument protection pipe 4 forms.This example is instrumentation electric interfaces 13 and explosion-proof installing additional between blue 2 at a distance from blue ground loop 1; At a distance from the bottom of blue ground loop 1 through bolt 1. 7 and nut 8 connecting line noses 1. 9; The line nose is 9 earth leads 5 1.; The other end wiring nose of earth lead 5 2. 10; 2. the line nose 10 is connected to instrumentation grounding band steel 11 through bolt 15 and nut, and instrumentation grounding band steel 11 connects electric power grounding grid band steels 12, earth lead 5 through the cable tie band 1. 6, the cable tie band 2. 16, the cable tie band is 3. 17 fixing with instrument protection pipe 4.
Major parameter:
The size of ground loop 1 and electric interfaces of the instrumentation that is connected 14 13 and explosion-proof separated blue 2 consistent size are brass nickel plating at a distance from blue ground loop 1 with explosion-proof material at a distance from blue 2, and explosive-proof grade EXdII BT4, degree of protection are IP65;
Bolt 1. 7, bolt 2. 15 and the specification of nut 8 be the supporting bolt and nut of M6 of standard, the line nose 1. 9, the line nose 2. 10 specification be with the bolt of M6 1. 7, bolt 2. 15 and nut 8 supporting, material is brass nickel plating;
Instrumentation grounding band steel 11 and electric power adopt brazing power ground and do preservative treatment between the band steel 12, instrumentation grounding band steel 11 is the zinc-coated flat steel sheet of ∠ 40 * 4, and during installation, basset 18 height of instrumentation grounding band steel 11 is 50mm.
This example is through on probation; Can realize the equipotential grounding requirement function of all field instrument equipment, and safe, the accuracy and the stability that improve field instrument equipment of the instrumentation that can keep the scene intact, make pipe-line construction more be tending towards standardization, modularization, hommization, minimizing working procedure and material, make things convenient for operation maintenance, reduce equipment investment and operating expenses.
Claims (5)
1. field, pipeline station instrumentation earthing method; A housing ground of the instrumentation electric interfaces (13) of instrumentation (14) that it is characterized in that standing is connected with earth lead (5) with instrumentation grounding band steel (11), and instrumentation grounding band steel (11) welds with band steel (12) power ground again.
2. device of field, pipeline station instrumentation earthing method according to claim 1; Instrumentation electric interfaces (13) at instrument cable (3) and field, pipeline station instrumentation (14) patches the place; Instrument cable (3) is outer to be with explosion-proofly at a distance from blue (2), and epimere is enclosed within instrument protection pipe (4) lining to instrument cable (3) to ground from underground; It is characterized in that it is by at a distance from blue ground loop 91), the line nose 1. (9), line nose 2. (10), bolt 1. (7), bolt 2. (15), nut (8), earth lead (5), instrumentation grounding band steel (11), cable tie band 1. (6), cable tie band 2. (16), cable tie band 3. (17) form; Instrumentation electric interfaces (13) and explosion-proof between blue (2), installing additional at a distance from blue ground loop (1); At a distance from the bottom of blue ground loop (1) through bolt 1. (7) and nut (8) connecting line nose 1. (9); Line nose 1. (9) connects earth lead (5); The other end wiring nose of earth lead (5) is (10) 2.; Line nose 2. (10) is connected to instrumentation grounding band steel (11) through bolt (15) and nut, and instrumentation grounding band steel (11) connects electric power grounding grid band steel (12), earth lead (5) through the cable tie band 1. (6), cable tie band 2. (16), cable tie band 3. (17) fixing with instrument protection pipe (4).
3. according to field, claim 2 said pipeline station instrumentation earthing device, it is characterized in that said earth lead (5) voltage withstand class: rated voltage 0.6/1kV.
4. according to field, claim 2 said pipeline station instrumentation earthing device, it is characterized in that said instrumentation grounding band steel (11) is the zinc-coated flat steel sheet of ∠ 40 * 4, during installation, the basset height of (18) of instrumentation grounding band steel (11) is 50mm.
5. according to field, claim 2 said pipeline station instrumentation earthing device; It is characterized in that said at a distance from the size of blue ground loop (1) and instrumentation electric interfaces (13) and explosion-proof separated blue (2) consistent size of the instrumentation that is connected (14); Material at a distance from blue ground loop (1) and explosion-proof separated blue (2) is brass nickel plating; Explosive-proof grade EXdIIBT4, degree of protection are IP65.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102270897A CN102315523A (en) | 2010-07-06 | 2010-07-06 | Earthing method and device of pipeline station instrument equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102270897A CN102315523A (en) | 2010-07-06 | 2010-07-06 | Earthing method and device of pipeline station instrument equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102315523A true CN102315523A (en) | 2012-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102270897A Withdrawn CN102315523A (en) | 2010-07-06 | 2010-07-06 | Earthing method and device of pipeline station instrument equipment |
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| CN (1) | CN102315523A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108459540A (en) * | 2017-02-20 | 2018-08-28 | 横河电机株式会社 | Field instrumentation and information providing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2247878Y (en) * | 1995-12-26 | 1997-02-19 | 钱根源 | Corrosion-proof earthing protection device |
| JP2003050000A (en) * | 2001-08-06 | 2003-02-21 | Nippon Steel Corp | Pressure transmitting device for pipeline |
| CN101512300A (en) * | 2006-07-26 | 2009-08-19 | 恩德斯+豪斯流量技术股份有限公司 | Apparatus for measuring the volume or mass flow of a medium in a pipeline |
| CN102315524A (en) * | 2010-07-06 | 2012-01-11 | 中国石油天然气集团公司 | Pipeline station instrument equipment grounding method and device, and device construction method |
-
2010
- 2010-07-06 CN CN2010102270897A patent/CN102315523A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2247878Y (en) * | 1995-12-26 | 1997-02-19 | 钱根源 | Corrosion-proof earthing protection device |
| JP2003050000A (en) * | 2001-08-06 | 2003-02-21 | Nippon Steel Corp | Pressure transmitting device for pipeline |
| CN101512300A (en) * | 2006-07-26 | 2009-08-19 | 恩德斯+豪斯流量技术股份有限公司 | Apparatus for measuring the volume or mass flow of a medium in a pipeline |
| CN102315524A (en) * | 2010-07-06 | 2012-01-11 | 中国石油天然气集团公司 | Pipeline station instrument equipment grounding method and device, and device construction method |
Non-Patent Citations (1)
| Title |
|---|
| 中华人民共和国国家发展和改革委员会: "SH/T 3081－2003 石油化工仪表接地设计规范", 《中华人民共和国石油化工行业标准》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108459540A (en) * | 2017-02-20 | 2018-08-28 | 横河电机株式会社 | Field instrumentation and information providing method |
| CN108459540B (en) * | 2017-02-20 | 2021-06-11 | 横河电机株式会社 | On-site instrument and information providing method |
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Application publication date: 20120111 |