CN104006864B - A kind of electrode pulling device of the capacitive liquid level sensor for high pressure storage tank - Google Patents
A kind of electrode pulling device of the capacitive liquid level sensor for high pressure storage tank Download PDFInfo
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- CN104006864B CN104006864B CN201410266076.9A CN201410266076A CN104006864B CN 104006864 B CN104006864 B CN 104006864B CN 201410266076 A CN201410266076 A CN 201410266076A CN 104006864 B CN104006864 B CN 104006864B
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- fairlead
- electrode
- high pressure
- storage tank
- pressure storage
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- 239000007788 liquid Substances 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 239000000523 sample Substances 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000000605 extraction Methods 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000008393 encapsulating agent Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a kind of electrode pulling device of the capacitive liquid level sensor for high pressure storage tank, including the first fairlead being made up of conducting metal, described first fairlead one end mutually passes to permission first electrode and is passed into first fairlead and from the other end from the end with the inside of the high pressure storage tank tank body, and first fairlead and electrically connected with the second electrode of the probe tank body electrical connection, there is insulating seal between the inwall and the first electrode of first fairlead, the insulating seal is cast between the inwall of first fairlead and the first electrode and is combined into one with the inwall and first electrode of first fairlead.Present invention solves the technical problem that being that the electrode pulling device for overcoming existing high pressure storage tank seals the easy shortcoming for failing in the presence of high pressure, there is provided a kind of sealing property is higher and seals the electrode pulling device of the more reliable capacitive liquid level sensor for high pressure storage tank.
Description
Technical field
The present invention relates to level gauging field.The electrode of specially a kind of capacitive liquid level sensor for high pressure storage tank draws
Go out device.
Background technology
Liquid sensor is the instrument for realizing that Liquid level is essential, and the application of capacitance level transducer therein is non-
It is often universal.Current condenser type liquid sensor has monoblock type and split type two kinds.Integral capacitance sensor is immersed in liquid,
For the circuit element for protecting it internal, the requirement to sealing property is very high.Split type capacitive liquid level sensor is divided into and being located at
Probe in storage tank and the circuit part being located at outside tank, the signal that will be popped one's head in by the electrode leads to client or lead through tank body
It is sent to the circuit part outside tank.Entered by sealing ring or other encapsulants between electrode leads to client or lead and tank body
Row sealing.But this electrode pulling device is applied in high pressure storage tank, because the hydraulic pressure in high pressure storage tank is very high, sealing ring or
Person's encapsulant can deform in the presence of long-term high pressure, and cause seal failure, and therefore liquid be susceptible to leakage.
The content of the invention
Present invention solves the technical problem that being the electrode pulling device for overcoming existing high pressure storage tank in the effect of high pressure
The shortcoming that lower sealing is easily failed, there is provided a kind of sealing property is higher and seals the more reliable capacitance liquid level for high pressure storage tank
The electrode pulling device of sensor.
The electrode pulling device of the capacitive liquid level sensor for high pressure storage tank of the invention, including be made up of conducting metal
The first fairlead, described first fairlead one end mutually passes to the inside of the high pressure storage tank tank body and allows to be located at the tank body
The first electrode of interior probe is passed from the end into first fairlead and from the other end of first fairlead, and institute
State the first fairlead and the tank body electrical connection electrically connected with the second electrode of the probe, the inwall of first fairlead and institute
Stating has insulating seal between first electrode, and the insulating seal is cast in the inwall of first fairlead with described the
It is combined into one between one electrode and with the inwall and first electrode of first fairlead.
Preferably, the part that first fairlead is combined with the insulating seal is near one end of the tank body
Internal diameter of the internal diameter more than the other end.
Preferably, having on the inwall of part that is combined with the insulating seal of first fairlead towards described
The step surface of high pressure storage tank.
Preferably, the step surface draws inside pipe wall one week around described first.
Preferably, the electrode pulling device also includes being communicated with the tank interior and one end seals with the tank body
Second fairlead and the locking nut with locking screw for connecting first fairlead and the second fairlead of connection,
Second fairlead is made up of conducting metal and is electrically connected with the tank body, the other end of second fairlead and described
One fairlead is respectively provided with the first outer locking screw thread coordinated with the internal locking screw thread of locking nut near one end of the tank body, and
One end that first fairlead is connected with the locking nut has the primary sealing area of taper, second fairlead and institute
The one end for stating locking nut connection has taper or spherical secondary sealing area, when the first fairlead and the second fairlead are installed to
During position, the primary sealing area cooperatively forms face and seals with the secondary sealing area.
Preferably, first fairlead away from one end of the tank body have for be connected with low pressure pipeline the
Two outer locking screw threads, and the end of first fairlead is provided with for playing sealing between first fairlead and low pressure pipeline
The sealing gasket of effect.
Compared to the prior art the electrode pulling device of the capacitive liquid level sensor for high pressure storage tank of the invention, has
Following beneficial effect：
1st, in the present invention, by the tube wall of the first fairlead and it is internal realize two extractions of electrode of probe, and the
The inwall and first electrode of casting insulated seal between the inwall and first electrode of one fairlead, insulator and the first fairlead
It is combined into one.Compared with prior art, the stability of gas sealing ability and sealing is greatly improved, extends the longevity of sealing
Life.
2nd, internal diameter internal diameter more than the other end of the part that the first fairlead is combined with insulating seal near one end of tank.
So insulator can be bound more closely in the presence of highly pressurised liquid with the inwall and electrode of the first fairlead, so that further
Improve the stability of sealing property and sealing.
3rd, there is the step towards high pressure storage tank on the inwall of the part that the first fairlead is combined with the insulating seal
Face.That is the inwall of the first fairlead is provided with step, in the presence of high pressure, insulating seal and towards between the step surface of tank body
Combination it is tightr.
4th, the present invention is additionally provided with the second fairlead, and the first fairlead has the first conical seal (contact) face, and the second fairlead has
Second conical seal (contact) face, when the first fairlead and the second fairlead are installed in place, the first conical seal (contact) face is close with the second taper
Front cover cooperatively forms face sealing.Can improve between the first fairlead and the second fairlead in the sealing perpendicular to axially direction
Energy.
Brief description of the drawings
Fig. 1 is cutd open for the electrode pulling device of the capacitive liquid level sensor for high pressure storage tank of one embodiment of the invention
View.
Fig. 2 is the of the electrode pulling device of the capacitive liquid level sensor for high pressure storage tank of one embodiment of the invention
The amplification view of one fairlead.
Reference
The fairleads of 1- first, 2- first electrodes, 3- insulating seals, 4- steps, 5- step surfaces, 6- the first outer locking spiral shells
Line, 7- the second outer locking screw threads, 8- sealing gaskets, 9- primary sealing areas, the fairleads of 10- second, 11- secondary sealing areas, 12- lockings
Nut, 13- ring-shaped steps, 14- tank bodies.
Specific embodiment
Fig. 1 is the structural representation of the electrode pulling device of the capacitive liquid level sensor for high pressure storage tank of the invention.
The probe of capacitive liquid level sensor is located in tank body 14, and tank body 14 itself is made up of conducting metal.The first electrode 2 of probe is passed through
The wall of tank body 14 is drawn, and second electrode (not shown) is electrically connected with tank body 14 and guided via tank body 14.
Fig. 2 is the of the electrode pulling device of the capacitive liquid level sensor for high pressure storage tank of one embodiment of the invention
The amplification view of one fairlead, as depicted in figs. 1 and 2, the electricity of the capacitive liquid level sensor for high pressure storage tank of the invention
Pole ejector, including the first fairlead 1 being made up of conducting metal, described one end of first fairlead 1 and the high pressure storage tank
The first electrode 2 that the inside of tank body 14 mutually passes to the probe for allowing to be located in the tank body 14 enters the described first extraction from the end
Pipe 1 is simultaneously passed from the other end.First fairlead 1 and the tank body 14 electrically connected with the second electrode of the probe are electrically connected simultaneously
Connect, the first fairlead 1 and and the electrical connection between the second electrode of the probe can be directly connected to, or in succession
Connect.The first electrode 2 and second electrode of probe are brought out, first electrode 2 and second electrode and fluid level transmitter after extraction
With the connection of display instrument (not shown), the monitoring to liquid level in high pressure storage tank is realized.
In the present invention, there is insulating seal 3, absolutely between the inwall and the first electrode 2 of first fairlead 1
The inside division of first fairlead 1 is turned into high-pressure side and low-pressure side by edge seal 3, as shown in Figure 2.The insulating seal 3 is poured
Note the inwall and the first electricity between the inwall and the first electrode 2 of first fairlead 1 and with first fairlead 1
Pole 2 is combined into one.The material of insulating seal 3 can be organosilicate dielectric material or insulating materials commonly used in the art,
Poured into a mould by high temperature, insulating seal 3 is combined into one with the inwall of the first fairlead 1, and the combination that improve the two is strong
Degree.Compared with prior art, the stability of gas sealing ability and sealing is greatly improved, extends the life-span of sealing.
Preferably, the part that first fairlead 1 is combined with the insulating seal 3 is near one end of the tank
Internal diameter of the internal diameter more than the other end.So insulator can be with the inwall and electrode of the first fairlead 1 in the presence of highly pressurised liquid
It is bound more closely, so as to further improve the stability of sealing property and sealing.The change of the internal diameter of the first fairlead 1 can be with
It is progressively continuous change, the inwall of such as the first fairlead 1 can be taper, can also take other forms.
In the present embodiment, there is court on the inwall of the part that first fairlead 1 is combined with the insulating seal 3
To the step surface 5 of the high pressure storage tank.That is the inwall of the first fairlead 1 is provided with step 4, in the presence of high pressure, insulated enclosure
Body 3 and tightr towards the combination between the step surface 5 of tank body 14.Preferably, the step surface 5 is drawn around described first
1 inwall of pipe one week so that sealing is more stablized.Certainly, the inwall that can also surround the first fairlead 1 sets multiple steps.
Preferably, the electrode pulling device also includes and is communicated inside the tank body 14 and one end and the tank body 14
The second fairlead 10 for being tightly connected and for connect the fairlead 10 of first fairlead 1 and second with locking screw
Locking nut 12.In the present embodiment, one end that first fairlead 1 is connected with second fairlead 10 has taper
Primary sealing area 9, second fairlead 10 and one end that first fairlead 1 is connected have taper or spherical second close
Front cover 11.When the first fairlead 1 and the second fairlead 10 are installed in place, the primary sealing area 9 and the secondary sealing area
11 mutual extrusion fits form the face sealing of taper.Can improve between the first fairlead 1 and the second fairlead 10 perpendicular to axle
To direction sealing property.
Connection between first fairlead 1 and the second fairlead 10 is specifically, first fairlead 1 is near the tank body
14 one end is respectively provided with the first outer locking screw thread 6, and the second fairlead 10 has ring-shaped step 13, and locking nut 12 is enclosed within second and draws
In outlet pipe 10, the internal locking screw thread of locking nut 12 is connected with the first outer locking screw thread 6 of the first fairlead 1, when connection in place
When, the other end of locking nut 12 offsets with the ring-shaped step 13 on the second fairlead 10, meanwhile, secondary sealing area 11 and first
Sealing surface 9 is mutually extruded, and forms the sealing surface of taper, so as to the first connecting tube 1 and the second connecting tube 10 are sealedly connected on into one
Rise.The shape of the second fairlead 10 is not limited, and can be straight tube, can also be bend pipe.Second fairlead 10 is by conducting metal
It is made and is electrically connected with the fairlead 1 of the tank body 14 and first, locking nut 12 is desirably also to be made up of conducting metal.
Preferably, first fairlead 1 has for low pressure pipeline (in figure not away from one end of the tank body 14
Show) the second outer locking screw thread 7 for being connected, and the end of first fairlead 1 is provided with first fairlead 1
The sealing gasket 8 sealed and between low pressure pipeline, sealing gasket 8 can be rubber cushion.So as to realize electrode pulling device in low pressure
Side is tightly connected with electrical connection joint.
Above example is only exemplary embodiment of the invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art are in essence of the invention and protection domain, and what the present invention was made is various
Modification or equivalent are also within the scope of the present invention.
Claims (4)
1. the electrode pulling device of a kind of capacitive liquid level sensor for high pressure storage tank, it is characterised in that：Including by conductive gold
The first fairlead that category is made, described first fairlead one end mutually passes to the inside of the high pressure storage tank tank body and allows to be located at institute
The first electrode of the probe in tank body is stated to be worn from the end into first fairlead and from the other end of first fairlead
Go out, and first fairlead and electrically connected with the second electrode of the probe tank body electrical connection, first fairlead
There is insulating seal, the insulating seal is cast in the inwall of first fairlead between inwall and the first electrode
It is combined into one between the first electrode and with the inwall and first electrode of first fairlead, described first draws
Internal diameter of the part that pipe is combined with the insulating seal near one end of the tank body is more than the internal diameter of the other end, the electrode
Ejector also includes being communicated with the tank interior and the second fairlead that one end is tightly connected with the tank body and for even
The locking nut with locking screw of first fairlead and the second fairlead is connect, second fairlead is by conducting metal
It is made and is electrically connected with the tank body, the other end of second fairlead and first fairlead is near the one of the tank body
End is respectively provided with the first outer locking screw thread coordinated with the internal locking screw thread of locking nut, and first fairlead and the locking
One end of nut connection has the primary sealing area of taper, and one end that second fairlead is connected with the locking nut has
Taper or spherical secondary sealing area, when the first fairlead and the second fairlead are installed in place, the primary sealing area and institute
State secondary sealing area and cooperatively form face sealing.
2. the electrode pulling device of the capacitive liquid level sensor for high pressure storage tank according to claim 1, its feature exists
In：First fairlead with the inwall of the part that the insulating seal is combined have towards the high pressure storage tank step
Face.
3. the electrode pulling device of the capacitive liquid level sensor for high pressure storage tank according to claim 2, its feature exists
In：The step surface draws inside pipe wall one week around described first.
4. the electrode pulling device of the capacitive liquid level sensor for high pressure storage tank according to claim 3, its feature exists
In：First fairlead has the second outer locking screw thread for being connected with low pressure pipeline away from one end of the tank body,
And the end of first fairlead is provided with the sealing gasket for being sealed between first fairlead and low pressure pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410266076.9A CN104006864B (en) | 2014-06-16 | 2014-06-16 | A kind of electrode pulling device of the capacitive liquid level sensor for high pressure storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410266076.9A CN104006864B (en) | 2014-06-16 | 2014-06-16 | A kind of electrode pulling device of the capacitive liquid level sensor for high pressure storage tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104006864A CN104006864A (en) | 2014-08-27 |
| CN104006864B true CN104006864B (en) | 2017-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410266076.9A Active CN104006864B (en) | 2014-06-16 | 2014-06-16 | A kind of electrode pulling device of the capacitive liquid level sensor for high pressure storage tank |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105157788A (en) * | 2015-05-07 | 2015-12-16 | 四川科强电子技术有限责任公司 | High-speed high-pressure liquidometer for detecting oil spillage of fluid pressure type CNG gas filling substation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203881407U (en) * | 2014-06-16 | 2014-10-15 | 北京鼎力华业测控仪表有限公司 | Electrode lead-out device for capacitive liquid level sensor of high-pressure storage tank |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2120327U (en) * | 1992-04-29 | 1992-10-28 | 李德中 | Built-in high-pressure fluid level transducer |
| CN2265532Y (en) * | 1995-10-26 | 1997-10-22 | 高维信 | Electrode device for steam manifold electric contact fluviograph measuring cylinder |
| US7255002B2 (en) * | 2005-04-07 | 2007-08-14 | Rosemount, Inc. | Tank seal for guided wave radar level measurement |
| ATE521111T1 (en) * | 2008-02-20 | 2011-09-15 | Grieshaber Vega Kg | CONDUCTOR FEEDTHROUGH, HOUSING DEVICE, FIELD DEVICE AND METHOD FOR PRODUCING A CONDUCTOR FEEDTHROUGH |
| CN201765014U (en) * | 2010-02-26 | 2011-03-16 | 秦皇岛华电测控设备有限公司 | Electrode liquid level sensor |
| CN102661772B (en) * | 2012-05-15 | 2016-03-30 | 成都中核鑫星应用技术研究所 | Integration electric contact liquid level temperature measurement sensor |
| LU92018B1 (en) * | 2012-06-08 | 2013-12-09 | Luxembourg Patent Co | Capacitive level gauge assembly for a pressurized or liquefied gas container |
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- 2014-06-16 CN CN201410266076.9A patent/CN104006864B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203881407U (en) * | 2014-06-16 | 2014-10-15 | 北京鼎力华业测控仪表有限公司 | Electrode lead-out device for capacitive liquid level sensor of high-pressure storage tank |
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| CN104006864A (en) | 2014-08-27 |
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Effective date of registration: 20240118 Address after: Room 601, Building 5, No. 8 Huashan Middle Road, Xinbei District, Changzhou City, Jiangsu Province, 213022 Patentee after: Jiangsu Dingli Huaye Measurement and Control Technology Co.,Ltd. Address before: Room 307, Building B, Building 19, No. 26 West Ring South Road, Daxing District Economic and Technological Development Zone, Beijing, 100176 Patentee before: BEIJING DINGLI HUAYE MONITORING INSTRUMENT CO.,LTD. |
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