CN102606877B - Liquid level measuring device of liquefied natural gas cylinder - Google Patents
Liquid level measuring device of liquefied natural gas cylinder Download PDFInfo
- Publication number
- CN102606877B CN102606877B CN201210093239.9A CN201210093239A CN102606877B CN 102606877 B CN102606877 B CN 102606877B CN 201210093239 A CN201210093239 A CN 201210093239A CN 102606877 B CN102606877 B CN 102606877B
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- China
- Prior art keywords
- side wall
- outer side
- wiring terminal
- sleeved
- measuring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 24
- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 18
- 210000004907 gland Anatomy 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a liquid level measuring device of liquefied natural gas cylinder, it relates to a liquid level measuring device, concretely relates to liquid level measuring device of liquefied natural gas cylinder. The invention aims to solve the problems that the acoustic wave liquid level meter has a complex structure, high manufacturing cost, difficult maintenance, difficult popularization and promotion, and the float type liquid level meter is easy to damage, poor in reliability and large in maintenance amount. The wiring terminal is inserted into a shell assembly, a first insulating sleeve is sleeved on the outer side wall of the wiring terminal, a guide sleeve, a support sleeve and a second insulating sleeve are sequentially sleeved on the outer side wall of the lower portion of the wiring terminal from inside to outside, an inner pipe is sleeved on the second insulating sleeve, an outer pipe is sleeved on the inner pipe, a plurality of first through holes are formed in the outer side wall of the inner pipe, a plurality of second through holes are formed in the outer side wall of the outer pipe, a positioning nut is arranged at the lower end of the wiring terminal, and a compression nut is sleeved on the outer side wall of the upper end. The device is used for measuring the height change of the liquid level in the liquefied natural gas cylinder.
Description
Technical field
The present invention relates to a kind of liquid surface measuring device, be specifically related to a kind of liquid surface measuring device of liquefied natural gas bottle.
Background technique
At present, the device that is used to measure liquid level is a lot, extensive use have ultrasonic type level meter, float level meter, a capacitance level gauge.Ultrasonic type level meter complex structure, involve great expense, maintenance difficult, be difficult for universal and promote; Float level meter test section is movable member, thereby very easily damage, poor reliability, amount of maintenance are large.
Summary of the invention
In order to solve, ultrasonic type level meter complex structure, cost are high, maintenance difficult in the present invention, are difficult for universal and promote, and float level meter is fragile, poor reliability, problem that amount of maintenance is large, and then propose a kind of liquid surface measuring device of liquefied natural gas bottle.
The present invention addresses the above problem the technological scheme of taking to be: the present invention includes wiring terminal, frame set, gland nut, the first insulating bush, guide sleeve, supporting sleeve, the second insulating bush, setscrew nut, inner and outer tubes, wiring terminal is inserted in frame set, and is exposed at outside frame set outside the upper end of wiring terminal, and the first insulating bush is sleeved on the outer side wall of wiring terminal, and the first insulating bush is between the outer side wall of wiring terminal and the madial wall of frame set, guide sleeve, supporting sleeve, the second insulating bush is sleeved on the outer side wall of wiring terminal bottom from inside to outside successively, and guide sleeve, supporting sleeve, the second insulating bush is all between the outer side wall of wiring terminal and the madial wall of frame set, inner tube is sleeved on the upper of the second insulating bush, outer tube sleeve dress on inner pipe, and leave gap between the madial wall of outer tube and the outer side wall of inner tube, on the outer side wall of inner tube, have several the first through holes, several second through holes on the outer side wall of outer tube, the lower end of wiring terminal is provided with setscrew nut, and setscrew nut is positioned at inner tube, gland nut is sleeved on the outer side wall of frame set upper end.
The invention has the beneficial effects as follows: the present invention is highly sensitive, dynamic response characteristic good, strong adaptability, anti-overload ability are strong, can under low temperature environment, measure liquid level; When the present invention works, without movable member, reliable operation, seal and good insulation preformance, and whole measuring device is detachable, convenient for maintaining.
Accompanying drawing explanation
Fig. 1 is main sectional view of the present invention.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1, described in present embodiment, a kind of liquid surface measuring device of liquefied natural gas bottle comprises wiring terminal 1, frame set 2, gland nut 3, the first insulating bush 4, guide sleeve 5, supporting sleeve 6, the second insulating bush 7, setscrew nut 8, inner tube 9 and outer tube 10, wiring terminal 1 is inserted in frame set 2, and outside the upper end of wiring terminal 1, be exposed at outside frame set 2, the first insulating bush 4 is sleeved on the outer side wall of wiring terminal 1, and the first insulating bush 4 is between the outer side wall of wiring terminal 1 and the madial wall of frame set 2, guide sleeve 5, supporting sleeve 6, the second insulating bush 7 is sleeved on the outer side wall of wiring terminal 1 bottom from inside to outside successively, and guide sleeve 5, supporting sleeve 6, the second insulating bush 7 is all between the outer side wall of wiring terminal 1 and the madial wall of frame set 2, inner tube 9 is sleeved on the upper of the second insulating bush 7, outer tube 10 is sleeved in inner tube 9, and leave gap between the outer side wall of the madial wall of outer tube 10 and inner tube 9, on the outer side wall of inner tube 9, have several first through holes 9-1, several second through holes 10-1 on the outer side wall of outer tube 10, the lower end of wiring terminal 1 is provided with setscrew nut 8, and setscrew nut 8 is positioned at inner tube 9, gland nut 3 is sleeved on frame set 2 upper end outer side walls.
The external negative pole in the top of inner tube 9 in present embodiment, the external anode in bottom of outer tube 10.
Embodiment two: present embodiment is described in conjunction with Fig. 1, described in present embodiment, a kind of liquid surface measuring device of liquefied natural gas bottle also comprises locking nut 11 and locking swivel nut 12, described frame set 2 comprises upper shell 2-1 and lower shell body 2-2, upper shell 2-1 and lower shell body 2-2 from top to bottom set gradually, locking swivel nut 12 is sleeved on the outer side wall of lower shell body 2-2 upper end, the outer side wall of the madial wall on the top of locking nut 11 and upper shell 2-1 lower end is threaded connection, the madial wall of locking nut 11 bottoms is threaded connection with the outer side wall of locking swivel nut 12.Other composition and annexation are identical with embodiment one.
Embodiment three: in conjunction with Fig. 1, present embodiment is described, a kind of upper shell 2-1 of liquid surface measuring device and joint of lower shell body 2-2 of liquefied natural gas bottle is provided with seal washer 13 described in present embodiment.Other composition and annexation are identical with embodiment two.
Working principle
When the present invention uses, on the top of inner tube 9, connect a negative pole, in the bottom of outer tube 10, connect an anode, the present invention is put into liquefied natural gas bottle, the bottom of outer tube 10 is inserted under LNG Liquefied natural gas liquid level, when in gas cylinder, liquid level changes, liquefied natural gas liquid enters in inner tube 9 by the second through hole 10-1 on outer tube 10 and the first through hole 9-1 in inner tube 9, the interior liquid volume of inner tube 9 and outer tube 10 increases, gas volume reduces, permittivity in inner tube 9 and outer tube 10 changes, thereby cause the variation of Capacity, by the negative pole in inner tube 9 and outer tube 10 Anodics, spread out of electrical signal.
Claims (3)
1. the liquid surface measuring device of a liquefied natural gas bottle, it is characterized in that: the liquid surface measuring device of described a kind of liquefied natural gas bottle comprises wiring terminal (1), frame set (2), gland nut (3), the first insulating bush (4), guide sleeve (5), supporting sleeve (6), the second insulating bush (7), setscrew nut (8), inner tube (9) and outer tube (10), wiring terminal (1) is inserted in frame set (2), and outside the upper end of wiring terminal (1), be exposed at outside frame set (2), the first insulating bush (4) is sleeved on the outer side wall of wiring terminal (1), and the first insulating bush (4) is positioned between the outer side wall of wiring terminal (1) and the madial wall of frame set (2), guide sleeve (5), supporting sleeve (6), the second insulating bush (7) is sleeved on the outer side wall of wiring terminal (1) bottom from inside to outside successively, and guide sleeve (5), supporting sleeve (6), the second insulating bush (7) is all positioned between the outer side wall of wiring terminal (1) and the madial wall of frame set (2), inner tube (9) is sleeved on the upper of the second insulating bush (7), outer tube (10) is sleeved in inner tube (9), and leave gap between the outer side wall of the madial wall of outer tube (10) and inner tube (9), on the outer side wall of inner tube (9), have several the first through holes (9-1), several second through holes (10-1) on the outer side wall of outer tube (10), the lower end of wiring terminal (1) is provided with setscrew nut (8), and setscrew nut (8) is positioned at inner tube (9), gland nut (3) is sleeved on the outer side wall of frame set (2) upper end, on the top of inner tube (9), connect a negative pole, in the bottom of outer tube (10), connect an anode.
2. a kind of liquid surface measuring device of liquefied natural gas bottle according to claim 1, it is characterized in that: described measuring device also comprises locking nut (11) and locking swivel nut (12), described frame set (2) comprises upper shell (2-1) and lower shell body (2-2), upper shell (2-1) and lower shell body (2-2) from top to bottom set gradually, locking swivel nut (12) is sleeved on the outer side wall of lower shell body (2-2) upper end, the outer side wall of the madial wall on the top of locking nut (11) and upper shell (2-1) lower end is threaded connection, the madial wall of locking nut (11) bottom is threaded connection with the outer side wall of locking swivel nut (12).
3. a kind of liquid surface measuring device of liquefied natural gas bottle according to claim 2, is characterized in that: upper shell (2-1) is provided with seal washer (13) with the joint of lower shell body (2-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210093239.9A CN102606877B (en) | 2012-03-31 | 2012-03-31 | Liquid level measuring device of liquefied natural gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210093239.9A CN102606877B (en) | 2012-03-31 | 2012-03-31 | Liquid level measuring device of liquefied natural gas cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102606877A CN102606877A (en) | 2012-07-25 |
| CN102606877B true CN102606877B (en) | 2014-02-12 |
Family
ID=46524512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210093239.9A Expired - Fee Related CN102606877B (en) | 2012-03-31 | 2012-03-31 | Liquid level measuring device of liquefied natural gas cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102606877B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353326A (en) * | 2013-07-01 | 2013-10-16 | 苏州赛智达智能科技有限公司 | Double-tube capacitive type liquid level sensor capable of preventing short circuiting |
| CN103353325A (en) * | 2013-07-01 | 2013-10-16 | 苏州赛智达智能科技有限公司 | Three-tube capacitive type liquid level sensor capable of preventing short circuiting |
| CN103836329B (en) * | 2014-03-12 | 2016-01-06 | 中国科学院电工研究所 | A kind of vacuum vessel coaxial center pipe localization method |
| LU92639B1 (en) * | 2015-01-22 | 2016-07-25 | Luxembourg Patent Co | Body of level gauge with electrical lead extending therethrough |
| 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 |
| CN113091850B (en) * | 2021-03-25 | 2023-07-21 | 北京航天试验技术研究所 | Capacitance liquid level meter based on liquid container |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1372283A (en) * | 1971-01-12 | 1974-10-30 | Air Liquide | Method and device for measuring the level of a liquefied gas |
| US3930411A (en) * | 1972-03-17 | 1976-01-06 | Linde Aktiengesellschaft | Fluid measuring device |
| EP0303221A1 (en) * | 1987-08-13 | 1989-02-15 | Nitto Machinery Co., Ltd. | Liquid level indicator using laser beam |
| CN1276519A (en) * | 1999-06-08 | 2000-12-13 | 赵明旭 | Self-calibrating capacitor-type liquid level gauge |
| JP2004150952A (en) * | 2002-10-30 | 2004-05-27 | Osaka Gas Co Ltd | Liquid level gage and replacement method therefor |
| CN101408450A (en) * | 2007-10-10 | 2009-04-15 | 罗明 | Full operating condition continuous measuring boiler drum liquid-level meter and liquid level computation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010019801A (en) * | 2008-07-14 | 2010-01-28 | Cryovac Corp | Liquid level meter for cryogenic liquid and reservoir container with liquid level meter |
-
2012
- 2012-03-31 CN CN201210093239.9A patent/CN102606877B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1372283A (en) * | 1971-01-12 | 1974-10-30 | Air Liquide | Method and device for measuring the level of a liquefied gas |
| US3930411A (en) * | 1972-03-17 | 1976-01-06 | Linde Aktiengesellschaft | Fluid measuring device |
| EP0303221A1 (en) * | 1987-08-13 | 1989-02-15 | Nitto Machinery Co., Ltd. | Liquid level indicator using laser beam |
| CN1276519A (en) * | 1999-06-08 | 2000-12-13 | 赵明旭 | Self-calibrating capacitor-type liquid level gauge |
| JP2004150952A (en) * | 2002-10-30 | 2004-05-27 | Osaka Gas Co Ltd | Liquid level gage and replacement method therefor |
| CN101408450A (en) * | 2007-10-10 | 2009-04-15 | 罗明 | Full operating condition continuous measuring boiler drum liquid-level meter and liquid level computation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2004－150952A 2004.05.27 |
| JP特开2010－19801A 2010.01.28 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102606877A (en) | 2012-07-25 |
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