CN103884399B - Fluid level transmitter - Google Patents
Fluid level transmitter Download PDFInfo
- Publication number
- CN103884399B CN103884399B CN201210563489.4A CN201210563489A CN103884399B CN 103884399 B CN103884399 B CN 103884399B CN 201210563489 A CN201210563489 A CN 201210563489A CN 103884399 B CN103884399 B CN 103884399B
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- Prior art keywords
- fluid level
- level transmitter
- probe
- gauge outfit
- adpting flange
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- 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.)
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of fluid level transmitter, described fluid level transmitter includes: a sensor and a junction part；One instrument gauge outfit is connected with described sensor by a right angle transit joint；Wherein, arranging an amplifying circuit in described instrument gauge outfit, described amplifying circuit is electrically connected with described sensor.This fluid level transmitter is rational in infrastructure, easy for installation, the problem preferably solving large-scale liquid storage tank level gauging.
Description
Technical field
The present invention relates to a kind of sensing equipment, a kind of level transmitting being applied to large-scale liquid storage tank level gauging
Device.
Background technology
Along with the development of Chemical Engineering Technology, measure sensing technology in industrial engineering, play the most important effect.At liquid
In the measurement technology of position, generally require sensor and draw current liquid reserves by measuring the pressure of liquid.Piezoelectric sensing
Device be utilize some dielectric medium stress after the sensor made of piezoelectric effect that produces.So-called piezoelectric effect refers to some electrolyte
When deforming upon (including bending and telescopic shape change) at the External Force Acting by a direction, owing to the polarization of internal charge is existing
As, the phenomenon of electric charge can be produced on its surface.Piezoelectric can be divided into piezoelectric monocrystal, piezoelectricity polycrystalline and organic piezoelectric materials.Pressure
Quartz crystal in all kinds of piezoelectric ceramics being belonging to piezoelectricity polycrystalline with the most use in electric-type sensor and piezoelectric monocrystal.Work as biography
When sensor is output as the standard signal of regulation, the most referred to as transmitter.
In prior art, the fluid level transmitter that large-scale liquid storage tank uses often does not has explosion prevention function, and volume is relatively big simultaneously, with
The sealing property of tank body is poor.Those skilled in the art develops a kind of piezoelectric transducer urgently and applies its transmitter
Solve the problems referred to above.
Summary of the invention
The technical problem to be solved in the present invention is that fluid level transmitter does not has explosion prevention function in order to overcome in prior art, seals
Property poor, the deficiency such as unreasonable structure, it is provided that a kind of fluid level transmitter.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of fluid level transmitter, its feature is, described fluid level transmitter includes:
One sensor and a junction part；
One instrument gauge outfit is connected with described sensor by a right angle transit joint；Can be effective by right angle transit joint
Optimize fluid level transmitter space structure, make technical staff convenient when design system.
Wherein, arranging an amplifying circuit in described instrument gauge outfit, described amplifying circuit is electrically connected with described sensor.
Preferably, described instrument gauge outfit includes explosion-resistant enclosure, so that instrument gauge outfit possesses explosion prevention function.
Preferably, described connection member is a flange.To strengthen the sealing property of transmitter.
Preferably, described sensor includes a probe and the back-up ring being arranged on its front end and a diaphragm.
Preferably, described diaphragm is connected by the pressure transmission medium in described probe and a core body, and described core body leads to
Too much root silicon rubber lead is connected with described amplifying circuit.
Preferably, described pressure transmission medium is silicone oil.
Preferably, described probe arranging a pouring orifice, described pouring orifice steel ball encapsulates.
Preferably, described instrument gauge outfit is fixed on described right angle transit joint by a fillister head screw.
Preferably, described probe and right angle transit joint are 304 stainless steel materials.
Preferably, described probe and right angle transit joint are 316L stainless steel material.
The most progressive effect of the present invention is: this fluid level transmitter is rational in infrastructure, easy for installation, preferably solves big
The problem that type liquid tank level is measured.
Accompanying drawing explanation
Fig. 1 is the structural representation of the fluid level transmitter under one specific embodiment of the present invention.
Detailed description of the invention
Embodiments of the invention will be described with reference to the drawings.In Figure of description, there is similar structures or function
Element will represent with identical component symbol.Accompanying drawing is only to facilitate each embodiment of the explanation present invention, and it is right to be not intended to
The present invention carries out the explanation of exhaustive, is not to limit the scope of the present invention.
Fig. 1 shows the schematic structure of the fluid level transmitter under one specific embodiment of the present invention.In this embodiment,
Fluid level transmitter includes sensor, adpting flange 4 and instrument gauge outfit 14.Instrument gauge outfit 14 is by right angle transit joint 12 and sensing
Device connects.
Sensor includes popping one's head in 7 and be arranged on the back-up ring 1 of its front end, diaphragm 2 and be arranged on the chip of its rear end.Probe 7
Front end is welded to connect with sealing wallboard 3.Including medium transmission pipeline 6 in the middle of probe 7,7 rear ends of popping one's head in arrange a receiving chamber, this appearance
Intracavity of receiving arranges diffusion silicon core body 8.
Diffusion silicon core body 8 is communicated with the diaphragm 2 of front end by medium transmission pipeline 6.Medium transmission pipeline 6 central filler silicon
Oil or other suitable medium.Probe 7 arranges pouring orifice 62, and pouring orifice 62 communicates with medium transmission pipeline 6, and technical staff is in peace
Can be packaged with steel ball subsequently from pouring orifice by Silicone oil injection medium transmission pipeline 6 during dress.
Adpting flange 4 is enclosed within the rear end sealing wallboard 3, is connected with the flange (not shown) stretched out bottom fluid reservoir.
In a pre-installation, adpting flange 4 can circumferentially rotate on probe 7.When two flanges are tightened, seal wallboard 3 and adpting flange 4
Frictional force increases, and probe 7 relative adpting flange 4 positions are fixed.
Diffusion silicon core body 8 is fixed on receiving intracavity by O 9 and clamping cap 10.Diffusion silicon core body 8 is by four silicone rubber
Wire 11 is connected with the amplifying circuit in instrument gauge outfit 14.So, diffusion silicon core body 8 produces millivolt voltage signal, and signal passes through
Wire reaches amplifying circuit, is transformed into voltage signal or current signal thus is further exported.
Right angle transit joint 12 is fixedly connected by welding with probe 7.In a preferred embodiment, right angle transit joint
12 are connected with probe 7, to reduce welding temperature by the way of laser welding, it is ensured that the quality of product.
Instrument gauge outfit 14 can threadedly be connected with right angle transit joint 12, it is also possible to is inserted directly into, by circle
Chapiter screw 13 fixes.Instrument gauge outfit 14 includes explosion-resistant enclosure 15, so makes instrument gauge outfit possess explosion-proof capabilities.
In a general case, from the point of view of cost, probe 7, right angle transit joint 12 and instrument gauge outfit 14 are permissible
It is 304 stainless steel materials.In a preferred embodiment, probe 7, right angle transit joint 12 and instrument gauge outfit 14 can be 316L
Stainless steel material.
It will be understood to those skilled in the art that this fluid level transmitter can be used in Large Copacity liquid tank level and measure
On, equally it is used in other any occasion needing liquid level is measured.
Although the foregoing describing the detailed description of the invention of the present invention, it will be appreciated by those of skill in the art that these
Being merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
On the premise of the principle and essence of the present invention, these embodiments can be made various changes or modifications, but these change
Protection scope of the present invention is each fallen within amendment.
Claims (7)
1. a fluid level transmitter, it is characterised in that described fluid level transmitter includes:
One sensor and a junction part；
One instrument gauge outfit is connected with described sensor by a right angle transit joint；
Wherein, arranging an amplifying circuit in described instrument gauge outfit, described amplifying circuit is electrically connected with described sensor；
Described connection member is an adpting flange；
Described sensor includes a probe and the back-up ring being arranged on its front end and a diaphragm；
Described diaphragm is connected by the pressure transmission medium in described probe and a core body, and described core body passes through many silicone rubber
Wire is connected with described amplifying circuit；
The front end of described probe seals wallboard with one and is welded to connect, and described adpting flange is enclosed within the rear end of described sealing wallboard, with
The flange stretched out bottom one fluid reservoir is connected, and in a pre-installation, described adpting flange can circumferentially rotate on described probe, when
When described adpting flange and described flange are tightened, described sealing wallboard increases with described adpting flange frictional force, described probe phase
The position of described adpting flange is fixed.
2. fluid level transmitter as claimed in claim 1, it is characterised in that described instrument gauge outfit includes explosion-resistant enclosure.
3. fluid level transmitter as claimed in claim 1, it is characterised in that described pressure transmission medium is silicone oil.
4. fluid level transmitter as claimed in claim 3 a, it is characterised in that pouring orifice, described oiling are set on described probe
Mouth steel ball encapsulates.
5. fluid level transmitter as claimed in claim 1, it is characterised in that described instrument gauge outfit is fixed by a fillister head screw
On described right angle transit joint.
6. the fluid level transmitter as according to any one of claim 1-5, it is characterised in that described probe and right angle transit joint
It is 304 stainless steel materials.
7. the fluid level transmitter as according to any one of claim 1-5, it is characterised in that described probe and right angle transit joint
For 316L stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563489.4A CN103884399B (en) | 2012-12-21 | 2012-12-21 | Fluid level transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563489.4A CN103884399B (en) | 2012-12-21 | 2012-12-21 | Fluid level transmitter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103884399A CN103884399A (en) | 2014-06-25 |
| CN103884399B true CN103884399B (en) | 2016-12-28 |
Family
ID=50953418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210563489.4A Active CN103884399B (en) | 2012-12-21 | 2012-12-21 | Fluid level transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103884399B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106468611A (en) * | 2015-08-19 | 2017-03-01 | 上海朝辉压力仪器有限公司 | The pressure gauge of flange drum type brake |
| CN106468612A (en) * | 2015-08-25 | 2017-03-01 | 上海朝辉压力仪器有限公司 | The transmitter of flange drum type brake |
| CN108005666A (en) * | 2016-11-02 | 2018-05-08 | 上海朝辉压力仪器有限公司 | Native storehouse soil pressure transmitter |
| CN107505026A (en) * | 2017-08-31 | 2017-12-22 | 安徽禾禾自动化科技有限公司 | A kind of single flange capacitive liquid level transmitter |
| CN107505079B (en) * | 2017-08-31 | 2020-10-30 | 安徽禾禾自动化科技有限公司 | High-voltage transmitter |
Citations (7)
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|---|---|---|---|---|
| CN2223485Y (en) * | 1995-05-25 | 1996-03-27 | 段祥照 | Liquid level sensor for pressure container |
| US5870695A (en) * | 1993-09-20 | 1999-02-09 | Rosemount Inc. | Differential pressure measurement arrangement utilizing remote sensor units |
| CN2566247Y (en) * | 2002-09-10 | 2003-08-13 | 胡泽民 | Intelligent passive digital display liquid level gauge |
| CN1877266A (en) * | 2006-06-30 | 2006-12-13 | 中国科学院合肥物质科学研究院 | Liquid level transmitter for sealed oil tank |
| CN201041506Y (en) * | 2007-04-29 | 2008-03-26 | 孙大勇 | Ground buried oil tank test device |
| CN202229806U (en) * | 2011-10-11 | 2012-05-23 | 济宁市同创工矿设备有限公司 | Explosion-proof radio frequency admittance material level meter |
| CN202974380U (en) * | 2012-12-21 | 2013-06-05 | 上海朝辉压力仪器有限公司 | Liquid level transmitter |
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2012
- 2012-12-21 CN CN201210563489.4A patent/CN103884399B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5870695A (en) * | 1993-09-20 | 1999-02-09 | Rosemount Inc. | Differential pressure measurement arrangement utilizing remote sensor units |
| CN2223485Y (en) * | 1995-05-25 | 1996-03-27 | 段祥照 | Liquid level sensor for pressure container |
| CN2566247Y (en) * | 2002-09-10 | 2003-08-13 | 胡泽民 | Intelligent passive digital display liquid level gauge |
| CN1877266A (en) * | 2006-06-30 | 2006-12-13 | 中国科学院合肥物质科学研究院 | Liquid level transmitter for sealed oil tank |
| CN201041506Y (en) * | 2007-04-29 | 2008-03-26 | 孙大勇 | Ground buried oil tank test device |
| CN202229806U (en) * | 2011-10-11 | 2012-05-23 | 济宁市同创工矿设备有限公司 | Explosion-proof radio frequency admittance material level meter |
| CN202974380U (en) * | 2012-12-21 | 2013-06-05 | 上海朝辉压力仪器有限公司 | Liquid level transmitter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103884399A (en) | 2014-06-25 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Liquid level transmitter Effective date of registration: 20220623 Granted publication date: 20161228 Pledgee: Industrial and Commercial Bank of China Limited Shanghai Songjiang sub branch Pledgor: SHANGHAI ZHAOHUI PRESSURE APPARATUS Co.,Ltd. Registration number: Y2022310000081 |