CN105403283A - Non-contact liquid level detection device - Google Patents
Non-contact liquid level detection device Download PDFInfo
- Publication number
- CN105403283A CN105403283A CN201511012710.7A CN201511012710A CN105403283A CN 105403283 A CN105403283 A CN 105403283A CN 201511012710 A CN201511012710 A CN 201511012710A CN 105403283 A CN105403283 A CN 105403283A
- Authority
- CN
- China
- Prior art keywords
- seat
- flange
- steel tube
- liquid level
- container
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a non-contact liquid level detection device, which comprises a container, a flange seat, a sealing pad, a sensor mounting seat, and a pressure sensor. The lower portion of the container is provided with the flange seat. The flange seat is prepared through welding a lower flange with a first stainless steel tube. The other end seat of the stainless steel tube is welded on the container. The sensor mounting seat is arranged on the flange seat. The sealing pad is arranged between the flange seat and the sensor mounting seat. A second stainless steel tube is extended into the container. An upper flange is provided with a threaded hole matched with a sensor. The pressure sensor is screwed on the upper flange. The non-contact liquid level detection device conducts the liquid level detection in the non-contact manner, so that the sensor is prevented from getting blocked and corroded. Meanwhile, the non-contact liquid level detection device is simple in structure, high in measurement accuracy and long in service life.
Description
Technical field
The present invention relates to a kind of liquid level detection device, particularly a kind of Non-contact type liquid level detecting device.
Background technology
Existing liquid level detection device has a lot, for different media and environment, the sensors such as pressure, tongue tube, ultrasound wave, laser can be adopted to detect.But in a special case, directly use above method not reach target.
As shown in Figure 1, in figure, 1 is motor, and 2 is container, and 3 is liquid medium, and 4 is stirrer, carrying liquid medium 3 in container 2, and motor 1 drives stirrer 5 agitated liquid medium.The solid particle of (5 > φ > 0.5) not of uniform size is had in liquid medium; Liquid can produce acid mist.Be arranged on A place with contactless ultrasonic sensor and detect liquid level, there are two problems: hyperacoustic vertebra shape ripple is formed to be measured by mistake; Fluctuation and the acid mist of liquid level affect measuring accuracy.Be arranged on A place with contactless laser sensor and detect liquid level, there are two problems: price is higher; Fluctuation and the acid mist of liquid level affect measuring accuracy.Be arranged on A place with contact type dry reed pipe sensor and detect liquid level, there are three problems: due to the particle in liquid, cause magnet ring and tongue tube clamping stagnation; When container 101 is darker, add the motion of liquid medium 103, measure unstable; Sensor is easily denuded.Be arranged on B place with contact pressure sensor and detect liquid level, there are three problems: the easy jam detection hole of the solid particle in liquid, even buries; Sensor is easily denuded.
Summary of the invention
In order to solve the above-mentioned technical matters that level sensing exists, the invention provides the Non-contact type liquid level detecting device that a kind of structure is simple, cost is low, measuring accuracy is high.
The technical scheme that the present invention solves the problems of the technologies described above is: a kind of liquid level detection device, comprise container, flange seat, sealing gasket, sensor installation seat, pressure transducer, flange seat is provided with at lower vessel portion, flange seat is welded by lower flange and the first stainless-steel tube, and the other end seat of stainless-steel tube is welded on container; Sensor installation seat is welded by upper flange and the second stainless-steel tube; Sensor installation seat is installed on flange seat, is provided with sealing gasket between sensor installation seat and flange seat, and the second stainless-steel tube extend in container, and upper flange is provided with the threaded hole with sensor matching, and pressure transducer is screwed on upper flange.
The invention has the beneficial effects as follows: the present invention is at container side wall bottom mounting flange seat, sensor installation mount pad again on flange seat, pressure transducer is arranged on sensor installation seat, stainless-steel tube on sensor installation seat extend in container, air compressing sensing is utilized to carry out level sensing like this, be contactless, avoid blocking and the corrosion of sensor.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing level sensing.
Fig. 2 is structural drawing of the present invention.
Fig. 3 is the partial enlarged drawing of " I " in Fig. 2.
Embodiment
As shown in Figure 2, the present invention includes container 101, liquid inlet 105, liquid outlet 106, flange seat, sealing gasket 111, sensor installation seat, pressure transducer 113, flange seat is provided with in container 101 bottom, flange seat is welded by lower flange 107 and stainless-steel tube 108, the other end seat of stainless-steel tube 108 is welded on container, lower flange 107 is porose to communicate with stainless-steel tube 108 (hole dimension and stainless-steel tube consistent), the hole flow through container 101 of stainless-steel tube 108, all weld seams require sealing, can not leak.Sensor installation seat is welded by upper flange 109 and stainless-steel tube 110, the external diameter of stainless-steel tube 110 is less than the internal diameter 10mm of stainless-steel tube 108, upper flange 109 is provided with the threaded hole mated with pressure transducer 113, this threaded hole and stainless-steel tube 110 lead directly to, all weld seams require sealing, can not leak.Silicone rubber seal gasket 111 is provided with between upper flange 109 and lower flange 107, sensor installation seat is inserted flange mount pad, overlap with screw 112(4) connect, clamp flange seat and sensor installation seat, pressure transducer 113 is screwed on sensor installation seat and (is wound around band before installing, ensures sealing).
level sensing principle of work of the present invention:when container 101 does not have liquid, the pressure that sensor detects is equal with atmospheric pressure, and output pressure signal is 0; When container 101 adds liquid to stainless-steel tube 110 mouthfuls, liquid closes stainless-steel tube 110, now, stainless-steel tube 110 inner sealing air, along with the not only increase of liquid, in stainless-steel tube 110, air is compressed, pressure raises, when liquid level declines, and pressure drop, pressure transducer 113 detects the change of pressure, exports corresponding pressure signal.
Claims (3)
1. a liquid level detection device, it is characterized in that: comprise container, flange seat, sealing gasket, sensor installation seat, pressure transducer, be provided with flange seat at lower vessel portion, flange seat is welded by lower flange and the first stainless-steel tube, and the other end seat of stainless-steel tube is welded on container; Sensor installation seat is welded by upper flange and the second stainless-steel tube; Sensor installation seat is installed on flange seat, is provided with sealing gasket between sensor installation seat and flange seat, and the second stainless-steel tube extend in container, and upper flange is provided with the threaded hole with sensor matching, and pressure transducer is screwed on upper flange.
2. the liquid level detection device according to claim, is characterized in that: described sealing gasket is silicone rubber seal gasket.
3. the liquid level detection device according to claim, is characterized in that: the second described stainless-steel tube external diameter is less than the internal diameter 5-10mm of the first stainless-steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511012710.7A CN105403283A (en) | 2015-12-31 | 2015-12-31 | Non-contact liquid level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511012710.7A CN105403283A (en) | 2015-12-31 | 2015-12-31 | Non-contact liquid level detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105403283A true CN105403283A (en) | 2016-03-16 |
Family
ID=55468911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511012710.7A Pending CN105403283A (en) | 2015-12-31 | 2015-12-31 | Non-contact liquid level detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105403283A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726140A (en) * | 1971-06-07 | 1973-04-10 | Caterpillar Tractor Co | Liquid level indicating means |
| JPS60165519A (en) * | 1984-02-08 | 1985-08-28 | Automob Antipollut & Saf Res Center | Oil level sensor for internal combustion engine |
| CN1570597A (en) * | 2003-07-14 | 2005-01-26 | 四川大学 | Method for measuring density and liquid level of strong corrosivity, high temperature and high vicidity slime |
| CN2704828Y (en) * | 2004-06-18 | 2005-06-15 | 安徽工业大学 | High viscosity media level meters |
| CN200996853Y (en) * | 2006-12-31 | 2007-12-26 | 泰山玻璃纤维股份有限公司 | Liquid-level gauge |
| CN202002700U (en) * | 2011-01-05 | 2011-10-05 | 漳州新立基沥青有限公司 | Asphalt liquid level sensor |
| CN203534667U (en) * | 2013-08-04 | 2014-04-09 | 四川锦美环保科技有限公司 | Non-contact liquid level detection apparatus |
| CN104344867A (en) * | 2013-08-04 | 2015-02-11 | 四川锦美环保科技有限公司 | Indirect contact liquid level detecting method and indirect contact liquid level detecting equipment |
-
2015
- 2015-12-31 CN CN201511012710.7A patent/CN105403283A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726140A (en) * | 1971-06-07 | 1973-04-10 | Caterpillar Tractor Co | Liquid level indicating means |
| JPS60165519A (en) * | 1984-02-08 | 1985-08-28 | Automob Antipollut & Saf Res Center | Oil level sensor for internal combustion engine |
| CN1570597A (en) * | 2003-07-14 | 2005-01-26 | 四川大学 | Method for measuring density and liquid level of strong corrosivity, high temperature and high vicidity slime |
| CN2704828Y (en) * | 2004-06-18 | 2005-06-15 | 安徽工业大学 | High viscosity media level meters |
| CN200996853Y (en) * | 2006-12-31 | 2007-12-26 | 泰山玻璃纤维股份有限公司 | Liquid-level gauge |
| CN202002700U (en) * | 2011-01-05 | 2011-10-05 | 漳州新立基沥青有限公司 | Asphalt liquid level sensor |
| CN203534667U (en) * | 2013-08-04 | 2014-04-09 | 四川锦美环保科技有限公司 | Non-contact liquid level detection apparatus |
| CN104344867A (en) * | 2013-08-04 | 2015-02-11 | 四川锦美环保科技有限公司 | Indirect contact liquid level detecting method and indirect contact liquid level detecting equipment |
Non-Patent Citations (2)
| Title |
|---|
| 洪霞等: "《水电站机组自动化运行与监控》", 30 September 2013, 中国电力出版社 * |
| 陈斐明等: "《现代管道工实用实训》", 28 February 2015 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI507665B (en) | Ultrasonic flow meter | |
| US9267833B2 (en) | Fluid measurement sensor attachment structure | |
| EP3488192B1 (en) | Vortex flowmeter with reduced process intrusion | |
| CN104685333A (en) | Leak detection device, and fluid controller having same | |
| CN202916035U (en) | Water pressure detection device based on ceramic pressure sensor | |
| CN203585695U (en) | Wind pipe assembly and pressure measuring device thereof | |
| CN208206239U (en) | A kind of ultrasonic water level measuring arrangement | |
| CN208383199U (en) | A kind of bigbore flowmeter | |
| US11125641B1 (en) | Gas leakage sensing device | |
| CN210464567U (en) | Electromagnetic flowmeter | |
| CN205670004U (en) | A kind of water-pipe type settlement instrument | |
| CN105403283A (en) | Non-contact liquid level detection device | |
| CN205373806U (en) | Noncontact type liquid level measuring device | |
| CN101762297B (en) | Sensing device for flow meter | |
| CN208795408U (en) | A kind of membrane type pipeline pressure instrumentation attachment device | |
| CN104005946B (en) | Reactor coolant pump flow speed controller | |
| CA2511748C (en) | Flow measuring method and device | |
| CN201653457U (en) | Sensor for flow meter | |
| CN204881965U (en) | Pressure transmitter's installation device among sewage treatment | |
| CN203489926U (en) | Ultrasonic flow meter | |
| CN2557927Y (en) | Medium isolated insertion type ultrasonic sensor | |
| RU120221U1 (en) | MEMBRANE PRESSURE SENSOR - DDM | |
| CN111121989A (en) | Fluid detection device | |
| EP4090915B1 (en) | Magnetic flow sensor | |
| CN212007367U (en) | Integrated flow and pressure measuring water meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160316 |