CN207689563U - Online seawaterline stray current sensor - Google Patents
Online seawaterline stray current sensor Download PDFInfo
- Publication number
- CN207689563U CN207689563U CN201820106218.9U CN201820106218U CN207689563U CN 207689563 U CN207689563 U CN 207689563U CN 201820106218 U CN201820106218 U CN 201820106218U CN 207689563 U CN207689563 U CN 207689563U
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- China
- Prior art keywords
- flange
- seawaterline
- online
- measuring instrument
- cylinder
- Prior art date
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Abstract
The utility model is related to a kind of online seawaterline stray current sensors, belong to the detection device technology field that flange is characterized.The utility model aim is that sensing flange uses high temperature resistant, high mechanical properties and fire proofing, meets on-line checking test request；Sensing flange is wholely set with measuring instrument, facilitates installation and observation.The utility model includes sensing flange and measuring instrument, and sensing flange includes mainly cylinder, flange, connection structure, reference electrode, copper backing, and cylinder is hollow cylindrical structure, and cylinder both ends are coaxially fixed with flange；Copper backing is fixed on flange；Cylinder axially offers one of wire lead slot along wall outer surface, and lead is laid in wire lead slot；It is each provided with a counterbore by two close end flange in wire lead slot, reference electrode is placed in counterbore；Connection structure is fixed on wire lead slot, and measuring instrument is fixed on by connection structure on cylinder；Copper backing and reference electrode are connected to measuring instrument by lead.
Description
Technical field
The utility model is related to a kind of online seawaterline stray current sensors, belong to the detection dress that flange is characterized
Set technical field.
Background technology
Widely used A types shut-off valve in seawater pipe on ship.The sensing method made with reference to the specification of A type shut-off valves
Orchid concatenates instead of the A type shut-off valves in pipeline in pipeline, the seawater of Stray current values and flange both ends in signal piping
Potential difference leads to measuring instrument by the cable of socket, convenient for the distribution situation of analysis stray electrical current.
But above-mentioned measurement method has the following problems：(1) above-mentioned measurement method is only provisional measurement, be there is no at present
It is a kind of that sensing flange is serially connected in always the online detection method in pipeline；(2) existing sensing flange material is generally PVC
Or nylon, 80 DEG C or so of high temperature resistant, interim test is fine, and senses flange and be serially connected in always in pipeline online, is set according to peculiar to vessel
Standby related request, sensing flange require high temperature resistant (300 DEG C or more), fire protection flame retarding, high mechanical strength to prevent pipe breakage, need
It is replaced with new material；(3) sensing flange belongs to separate structure with measuring instrument at present, and connecting cable, measuring instrument is needed to need
Position is looked for place；If the two can be combined into one, form a whole more satisfactory.
Utility model content
In view of the foregoing defects the prior art has, the utility model proposes a kind of online seawaterline stray electrical currents
Sensor, it is therefore an objective to sense flange and use high temperature resistant, high mechanical properties and fire proofing, meet on-line checking test request；It passes
Sense flange is wholely set with measuring instrument, facilitates installation and observation.
Online seawaterline stray current sensor described in the utility model, including sensing flange and measuring instrument, pass
It includes cylinder, flange, connection structure, reference electrode, copper backing to feel flange mainly, and cylinder is hollow cylindrical structure, cylinder both ends
Coaxially it is fixed with flange；It senses flange material and uses polyimides；Copper backing is fixed on flange；Cylinder is along wall outer surface axis
To one of wire lead slot is offered, lead is laid in wire lead slot；In wire lead slot a counterbore, counterbore are each provided with by two close end flange
Inside it is placed with reference electrode；Connection structure is fixed on wire lead slot, and measuring instrument is fixed on by connection structure on cylinder；Copper backing
Measuring instrument is connected to by lead with reference electrode.
Preferably, the flange is disk structure, offers several circular holes along disc centre, bolt passes through circular hole real
Now with the connection of seawaterline, the copper backing being fixed with for detecting voltage is provided at circular hole.
Preferably, after reference electrode has been placed in the counterbore, having filled conducting wire in wire lead slot, by special glue seal into
Row sealing.
Preferably, the measuring instrument uses stray current measuring apparatus, with the copper backing and reference electrode in sensing flange
It is connected and is transmitted a signal on computer by interface.
Preferably, the control circuit of the stray current measuring apparatus is by analog circuit and using microcontroller as the number electricity of core
Road two parts composition, wherein artificial circuit part by input circuit, amplifying circuit, logic switching circuit, sampling hold circuit and
Analog conversion circuit forms；Digital circuits section is using microcontroller as core, and by latch, memory under program, data memory
And decoder composition.
Preferably, the connection structure includes fairlead, lead lid and socket.
Preferably, the fairlead is located above wire lead slot；Lead lid is located at the top of fairlead.
Preferably, the socket is connected with lead, and is provided with and measuring instrument is provided with mating interface.
Preferably, the socket uses the aviation socket of four cores, the lower end of measuring instrument to install corresponding aviation plug,
The two is directly docked.
The utility model has the beneficial effects that：It is sensed using online seawaterline stray electrical current described in the utility model
Device, sensing flange realize detection on-line operation, due to sensing high temperature resistant, high mechanical properties and the flame-retarding characteristic of flange, ensure
On-line Product reliable and secure operation；Connection structure uses socket mode simultaneously, and sensing flange is made to can make up with measuring instrument
One, facilitates installation and observation.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
In figure：1, measuring instrument；2, socket；3, lead lid；4, fairlead；5, flange；6, copper backing；7, reference electrode；8、
Wire lead slot.
Specific implementation mode
In order to make the utility model aim, technical solution be more clearly understood, with reference to embodiment, to the utility model
It is described in further detail.
Online seawaterline stray current sensor described in the utility model, seawater flows in metal tubes to be easy
Stray electrical current is generated, stray electrical current easily causes corrosion of piping, corresponding guarantor can be taken according to the distribution situation of stray electrical current
Shield measure.The sensor is can to provide data with the stray electrical current and potential difference numerical value in on-line checking pipeline for safeguard measure
It supports.
Online seawaterline stray current sensor described in the utility model substitutes shut-off valve, for supervising online
Survey the current potential and electric current of seawaterline.Relative to the provisional measurement of shut-off valve, the utility model is long-term to go here and there after removing shut-off valve
It is connected in seawaterline, realizes that long-term putting type measures.
As shown in Figure 1, the utility model includes integrally two large divisions：Sense flange and measuring instrument 1.Sense flange the purpose of be
It is serially connected in the current potential and electric current that its two lateral line is monitored in seawaterline.Measuring instrument 1 uses stray current measuring apparatus 1, with biography
Sensor in sense flange is connected and is transmitted a signal on server by 485 interfaces.
It includes cylinder, flange 5, attachment device, reference electrode 7, copper backing 6 etc. to sense flange.Cylinder is hollow circuit cylinder knot
Structure, cylinder both ends are coaxially fixed with flange 5, and flange 5 is separately connected the corresponding construction for the seawaterline for needing to measure.Flange 5 is
Disk structure offers several circular holes along disc centre, and bolt passes through the connection of circular hole and seawaterline, set at circular hole
It is equipped with the copper backing 6 being fixed with for detecting voltage.Sensing flange material is polyimides (PI).Polyimides (PI) this be one
Kind high molecular material has high temperature resistant (400 DEG C or more), without sharp melting point, high insulating property, high mechanical strength, corrosion-resistant etc.
Advantage is ideal online sensing flange material.
Cylinder axially offers one of wire lead slot 8 along wall outer surface, and wire lead slot 8 is for being laid with lead.It is leaned in wire lead slot 8
It is each provided with a counterbore at two close end flange 5, reference electrode 7 is placed in counterbore.Reference electrode 7 directly with the seawater in cylinder
It is connected.After having placed reference electrode 7 in counterbore, having filled conducting wire in wire lead slot 8, it is sealed using special glue sealing.Even
Connection device is fixed on wire lead slot 8, for measuring instrument 1 to be fixed on cylinder.Attachment device includes fairlead 4,3 and of lead lid
Socket 2.Fairlead 4 is located at 8 top of wire lead slot, the outlet as conducting wire；Lead lid 3 is located at 4 top of fairlead, for fixing
Socket 2；Socket 2 is connected with lead, and is provided with and measuring instrument 1 is provided with mating interface.For example, socket 2 is using 4 cores
The lower end of aviation socket 2, measuring instrument 1 is also installed by the directly docking of both corresponding aviation plugs.
Online sensing flange described in the utility model realizes detection on-line operation, due to sensing the resistance to height of flange
Temperature, high mechanical properties and flame-retarding characteristic, ensure that the reliable and secure operation of On-line Product.Connection structure uses counterparty simultaneously
Formula makes sensing flange can make up one with measuring instrument 1, facilitates installation and observation.
The utility model use process is as follows shown, the shut-off valve being connected on seawaterline is dismantled, and replaces
The wide online seawaterline stray current sensor with shut-off valve.The flange 5 of cylinder both sides is connected to seawaterline pair
The position answered.Before on installation seawaterline, online seawaterline stray current sensor is by measuring instrument 1 and sensing
Device flange 5 is fixed together by socket 2.When turn on sensor, the copper backing 6 on flange 5 detects two by bolt
The voltage of seawaterline is held, the reference electrode 7 at cylinder counterbore detects the electric current of seawater in real time, accurately detects in pipeline
Stray electrical current and potential difference numerical value, after being transmitted to measuring instrument 1, handling result is sent to computer by measuring instrument 1 again, is arranged for protection
It applies and data support is provided.The control circuit of stray current measuring apparatus 1 is by analog circuit and using microcontroller as the digital circuit of core
Two parts form, and wherein artificial circuit part is by input circuit, amplifying circuit, logic switching circuit, sampling hold circuit and mould
Quasi- conversion circuit composition；Digital circuits section using microcontroller as core, and by latch, memory under program, data memory and
Decoder forms.Pressure drop, the electric current that measuring instrument 1 acquires will be generated on the pipeline of cylinder when there is stray electrical current to flow through pipeline
Signal is sent into channel selection switch after amplification, then is input to sampling holder, usual sampling holder be in sampling with
With state, before starting A/D, retainer is arranged to export hold mode, and to ensure the stabilization of input signal, voltage signal is most
It is sent to A/D converter eventually, converts analog signals into digital signal, then handled by microcontroller, result exports over the display,
Stray electrical current is measured.
The utility model can be widely used in the stray electrical current on-line checking occasion of seawaterline peculiar to vessel.
The above is only the preferred embodiment of the present invention and oneself, not with the utility model be limitation, it is all this
Impartial modifications, equivalent substitutions and improvements etc., should be included in the utility model made by within the spirit and principle of utility model
Patent covering scope in.
Claims (9)
1. a kind of online seawaterline stray current sensor, including sensing flange and measuring instrument (1), which is characterized in that pass
It includes cylinder, flange (5), connection structure, reference electrode (7), copper backing (6) to feel flange, and cylinder is hollow cylindrical structure, cylinder
Both ends are coaxially fixed with flange (5)；Copper backing (6) is fixed on flange (5)；Cylinder axially offers together along wall outer surface
Wire lead slot (8), wire lead slot (8) is interior to be laid with lead；In wire lead slot (8) counterbore, counterbore are each provided at two close end flange (5)
Inside it is placed with reference electrode (7)；Connection structure is fixed on wire lead slot (8), and measuring instrument (1) is fixed on cylinder by connection structure
On；Copper backing (6) and reference electrode (7) are connected to measuring instrument (1) by lead.
2. online seawaterline stray current sensor according to claim 1, which is characterized in that the flange (5)
For disk structure, several circular holes are offered along disc centre, bolt passes through the connection of circular hole and seawaterline, at circular hole
It is provided with the copper backing (6) being fixed with for detecting voltage.
3. online seawaterline stray current sensor according to claim 1, which is characterized in that put in the counterbore
It has set after having filled conducting wire in reference electrode (7), wire lead slot (8), has been sealed by special glue sealing.
4. online seawaterline stray current sensor according to claim 1, which is characterized in that the measuring instrument
(1) stray current measuring apparatus (1) is used, is connected and by 485 with the copper backing (6) and reference electrode (7) sensed in flange
Interface transmits a signal on computer.
5. online seawaterline stray current sensor according to claim 4, which is characterized in that the stray electrical current
The control circuit of measuring instrument (1) is made of analog circuit and digital circuit two parts by core of microcontroller, wherein simulation electricity
Road part is made of input circuit, amplifying circuit, logic switching circuit, sampling hold circuit and analog conversion circuit；Digital electricity
Road part is made of using microcontroller as core latch, memory under program, data memory and decoder.
6. online seawaterline stray current sensor according to claim 1, which is characterized in that the connection structure
Including fairlead (4), lead lid (3) and socket (2).
7. online seawaterline stray current sensor according to claim 6, which is characterized in that the fairlead
(4) it is located above wire lead slot (8)；Lead lid (3) is located at the top of fairlead (4).
8. online seawaterline stray current sensor according to claim 7, which is characterized in that the socket (2)
It is connected with lead, and is provided with and measuring instrument (1) is provided with mating interface.
9. online seawaterline stray current sensor according to claim 7, which is characterized in that the socket (2)
Using the aviation socket (2) of four cores, corresponding aviation plug is installed in the lower end of measuring instrument (1), and the two is directly docked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820106218.9U CN207689563U (en) | 2018-01-22 | 2018-01-22 | Online seawaterline stray current sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820106218.9U CN207689563U (en) | 2018-01-22 | 2018-01-22 | Online seawaterline stray current sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207689563U true CN207689563U (en) | 2018-08-03 |
Family
ID=62991917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820106218.9U Expired - Fee Related CN207689563U (en) | 2018-01-22 | 2018-01-22 | Online seawaterline stray current sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207689563U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254443A (en) * | 2020-03-18 | 2020-06-09 | 中国船舶重工集团公司第七二五研究所 | Seawater pipeline stray current detection and control device and method |
-
2018
- 2018-01-22 CN CN201820106218.9U patent/CN207689563U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254443A (en) * | 2020-03-18 | 2020-06-09 | 中国船舶重工集团公司第七二五研究所 | Seawater pipeline stray current detection and control device and method |
| CN111254443B (en) * | 2020-03-18 | 2022-04-05 | 中国船舶重工集团公司第七二五研究所 | Seawater pipeline stray current detection and control device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201123 Address after: 471000 No. 169 Binhe South Road, Luolong District, Henan, Luoyang Patentee after: NO.725 RESEARCH INSTITUTE OF CHINA SHIPBUILDING INDUSTRY Corp. Address before: 266000 room 429, No. 52, Hechuan Road, Licang District, Qingdao, Shandong Province, room 429 Patentee before: QINGDAO JINHAO ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 Termination date: 20210122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |