CN206311178U - A kind of Non-Touching Type Liquid Level Switch - Google Patents

A kind of Non-Touching Type Liquid Level Switch Download PDF

Info

Publication number
CN206311178U
CN206311178U CN201621053651.8U CN201621053651U CN206311178U CN 206311178 U CN206311178 U CN 206311178U CN 201621053651 U CN201621053651 U CN 201621053651U CN 206311178 U CN206311178 U CN 206311178U
Authority
CN
China
Prior art keywords
liquid level
level switch
type liquid
measurement plate
support
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.)
Active
Application number
CN201621053651.8U
Other languages
Chinese (zh)
Inventor
李洪涛
王文光
李开福
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hubei Chemical Fertilizer Branch Co Of China Petroleum & Chemical Corp
China Petroleum and Chemical Corp
Original Assignee
Hubei Chemical Fertilizer Branch Co Of China Petroleum & Chemical Corp
China Petroleum and Chemical Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hubei Chemical Fertilizer Branch Co Of China Petroleum & Chemical Corp, China Petroleum and Chemical Corp filed Critical Hubei Chemical Fertilizer Branch Co Of China Petroleum & Chemical Corp
Priority to CN201621053651.8U priority Critical patent/CN206311178U/en
Application granted granted Critical
Publication of CN206311178U publication Critical patent/CN206311178U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Level Indicators Using A Float (AREA)

Abstract

The utility model provides a kind of Non-Touching Type Liquid Level Switch, including:Measurement plate, ball float, support, inductance sensor, rotary shaft and signal handling equipment, the inside of testing container is fixed in one end of the support, the other end top of support is installed with inductance sensor, one end of the rotary shaft can be rotatably mounted to the other end bottom of the support, the other end of the rotary shaft is fixed in the measurement plate, the lower section of the measurement plate is fixedly connected with the ball float, and the inductance sensor is electrically connected with the signal handling equipment.The characteristics of the utility model has reasonable in design, simple structure, certainty of measurement high, low cost, long working life, the jam faults of rotating shaft can be eliminated using the self gravitation of ball float, it is easy to maintenance, cost of manufacture is cheap, is particularly well-suited to containing the liquid-level switch control under severe operating environment, the place such as solid impurity, Korrosionsmedium, easy structure.

Description

A kind of Non-Touching Type Liquid Level Switch
Technical field
The utility model belongs to measuring instrumentss field, more particularly to a kind of to be opened for measuring the contact-free level of liquid level Close.
Background technology
Liquid-level switch is used to measure liquid level, when liquid level reaches a certain control position, liquid-level switch then output contact signal.
At present, it is usually used main to have floating-ball level switch, capacitor hydraulic switch, infrared ray liquid-level switch etc. several Class.These liquid-level switches are risen or dropped with liquid level using magnetic float, make the dry spring of setting position in sensor detection pipe Pipe or microswitch action, send contact and open (pass) conversion signal.
However, there is problems with these liquid level switch structures:
1st, the mechanical contact of tongue tube or microswitch big, oxidizable, service life affected by environment is short;
2nd, the mechanical twisting structure of magnetic float, perishable and fouling, cause float bite to make measurement failure, measure failure Rate is high;
3rd, condenser type, infrared ray liquid level switch structure are complicated, the easy contaminated influence certainty of measurement of probe, maintenance difficult.
In consideration of it, to overcome disadvantages described above, inventor of the present utility model designs a kind of Non-Touching Type Liquid Level Switch.
Utility model content
The purpose of this utility model is to provide a kind of Non-Touching Type Liquid Level Switch, and it is applied to containing solid impurity, corrosivity Liquid-level switch control under severe operating environment, the place such as medium, easy structure.
It is that, up to above-mentioned purpose, the utility model provides a kind of Non-Touching Type Liquid Level Switch, and it includes:Measurement plate, ball float, branch The inside of testing container, support are fixed in frame, inductance sensor, rotary shaft and signal handling equipment, one end of the support Other end top be installed with inductance sensor, one end of the rotary shaft can be rotatably mounted to the another of the support One end bottom, the other end of the rotary shaft is fixed in the measurement plate, and the lower section of the measurement plate is fixed with the ball float Connection, the inductance sensor is electrically connected with the signal handling equipment.
Described Non-Touching Type Liquid Level Switch, wherein, spacing between the inductance sensor and measurement plate for 0~ 15mm。
Described Non-Touching Type Liquid Level Switch, wherein, the diameter of the width more than inductance sensor of the measurement plate.
Described Non-Touching Type Liquid Level Switch, wherein, the extended line of the measurement plate passes through the center of gravity of the ball float.
Described Non-Touching Type Liquid Level Switch, wherein, the measurement plate is connected with the ball float by way of welding Connect.
Described Non-Touching Type Liquid Level Switch, wherein, the measurement plate top higher than inductance sensor top at least 40mm。
Described Non-Touching Type Liquid Level Switch, wherein, the inductance sensor is current vortex sensor.
Described Non-Touching Type Liquid Level Switch, wherein, the cross section of the support is T-shaped, and with horizontal segment and vertically Section, wherein horizontal segment is fixedly connected on inside the testing container, and the vertical section is vertical with horizontal segment to be fixedly connected, the branch The top of the vertical section of frame offers the mounting hole for installing inductance sensor, and the vertical pars infrasegmentalis of the support offers use In the perforate for installing rotary shaft.
Described Non-Touching Type Liquid Level Switch, wherein, the mounting hole site is at vertical section top 1/4.
Described Non-Touching Type Liquid Level Switch, wherein, the inductance sensor is fixed in the mounting hole using nut.
Described Non-Touching Type Liquid Level Switch, wherein, the ball float is preferably metal ball float.
Described Non-Touching Type Liquid Level Switch, wherein, the measurement plate top higher than inductance sensor top at least 40mm。
The beneficial effects of the utility model are:With reasonable in design, simple structure, certainty of measurement high, low cost, work longevity The characteristics of ordering long, the jam faults of rotating shaft can be eliminated using the self gravitation of ball float, and easy to maintenance, cost of manufacture is cheap, especially Suitable for containing the liquid-level switch control under severe operating environment, the place such as solid impurity, Korrosionsmedium, easy structure.
Brief description of the drawings
The utility model will be hereinafter described in more detail based on embodiment and refer to the attached drawing.Wherein:
Fig. 1 is integrally-built front view of the present utility model;
Fig. 2 is integrally-built side view of the present utility model.
Description of reference numerals:1- measurement plates;2- ball floats;3- supports;4- inductance sensors;5- rotary shafts;6- signal transactings Equipment.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not according to actual ratio.
Specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As depicted in figs. 1 and 2, it is respectively integrally-built front view of the present utility model and side view.This practicality is new Type provides a kind of Non-Touching Type Liquid Level Switch, and it mainly includes:Measurement plate 1, ball float 2, support 3, inductance sensor 4, rotary shaft 5 And signal handling equipment 6.
The liquid level that the support 3 is controlled as needed, is fixed on inside testing container.The cross section of the support 3 It is substantially t-shaped, and with horizontal segment 31 and vertical section 32, wherein horizontal segment 31 is fixedly connected on inside the testing container, institute State that vertical section 32 is then vertical with horizontal segment 31 to be fixedly connected.
Preferably, to be about 150mm, width about 70mm, the size of vertical section 32 is to be about to the size of the horizontal segment 31 200mm, width about 70mm, and the vertical welding of the horizontal segment 31 is in the middle part of the vertical section 32.Preferably, the support 3 The firm on-deformable material such as the 316L stainless steel plates using 4mm thickness makes, in the hope of ensureing anticorrosion effect.
The top of the vertical section 32 of the support 3 offers the mounting hole 33 for installing inductance sensor 4, it is preferable that The mounting hole 33 is located at the top of the vertical section 32 1/4, and the aperture of the mounting hole 33 is preferablyIt is preferred that Ground, the inductance sensor 4 can be current vortex sensor.The diameter of the inductance sensor 4 is aboutAnd inductance is passed Sensor 4 can be fixed in the mounting hole 33 using nut (such as back tightening nut).
The measurement plate 1 is fixedly connected on the top of the ball float 2, and the measurement plate 1 extended line through described The center of gravity of ball float 2.Preferably, the measurement plate 1 is attached with the ball float 2 by way of welding.Preferably, it is described floating Ball 2 is metal ball float, and its diameter is aboutPreferably, the size of the measurement plate 1 is to be about 200mm, width about 40mm.Ball float 2 needs to be made of corrosion-resistant material.
The bottom of vertical section 32 of the support 3 offers the perforate 34 for installing rotary shaft 5, and the rotary shaft 5 can Neatly rotated in the perforate 34.The position of wherein described perforate 34 should be according to inductance sensor 4 and the top of measurement plate 1 Difference in height determines that the top of measurement plate 1 should be higher than that the top at least 40mm of inductance sensor 4.Preferably, the aperture of the perforate 34 PreferablyAdditionally, the spacing between the inductance sensor 4 and measurement plate 1 is preferably from about 0~15mm, such as 5mm, In the hope of ensureing certainty of measurement.The rotary shaft 5 is fixedly connected with the measurement plate 1, preferably by being welded to connect, and preferably Ground, the spacing between the rotary shaft 5 and the bottom of the measurement plate 1 is preferably from about 20mm.Preferably, the measurement plate 1 Diameter of the width slightly larger than inductance sensor 4.
The inductance sensor 4 is electrically connected (such as cable connection) with the signal handling equipment 6.Inductance sensor 4 is leaned on Voltage can change during close or remote from measurement plate 1, electric signal output switch amount contact signal after treatment, with noncontact side Formula measures liquid level, can accurately reflect liquid level situation of change.Preferably, the inductance sensor 4 can select NCN4-12GM35-NO Type 12mm sensors;The signal handling equipment 6 can select KFD2-SR2-EX1.WLB type guard gratings.The specific mode of connection For:14 (+) of guard grating, 15 (-) terminals connect 24VDC power supplys;The output of inductance sensor 4 connects 1 (+) of guard grating, 3 (-) ends Son;Contact signal output has two groups:Opened point 7/8 and normally closed point 7/9.
Operation principle of the present utility model is:
When an alternating magnetic field can be produced after inductance type transducer energization, when metal object close to this magnetic field, and reach During distance of reaction, current vortex is produced in metal object, its alternating magnetic field is with outer magnetic field direction conversely, inductance type sensing can be changed The effective impedance of device, the change of its voltage is converted into switch contact signal by signal handling equipment, so as to reach non-cpntact measurement The purpose of liquid level.
Not up to the working condition of alarm liquid level when, measurement plate 1 near inductance sensor 4, the output voltage of inductance sensor 4 Signal 7.7V or so.When liquid level slowly rises, ball float 2 is gradually flooded, due to buoyancy increase, ball float 2 will enclose together with measurement plate 1 Rotated around rotary shaft 5.When measurement plate 1 is away from inductance sensor 4, the output voltage signal of inductance sensor 4 by 7.7V saltus steps to 3V, The contact of the output of signal handling equipment 6 is then by opened point saltus step to normally closed, then matches corresponding display instrument or by contact signal Introducing DCS can just realize the switching value alarm of liquid level or control.
In sum, the beneficial effects of the utility model are:This device is compared with setting with existing industrial level switch Meter rationally, simple structure, certainty of measurement high, low cost, long working life the characteristics of, using the self gravitation of ball float can eliminate turn The jam faults of axle, easy to maintenance, cost of manufacture is cheap, is particularly well-suited to be disliked containing solid impurity, Korrosionsmedium, easy structure etc. Liquid-level switch control under bad operating environment, place.
Although being described to the utility model by reference to preferred embodiment, model of the present utility model is not being departed from In the case of enclosing, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as not depositing The every technical characteristic being previously mentioned in structural hazard, each embodiment can combine in any way.The utility model It is not limited to specific embodiment disclosed herein, but all technical schemes including falling within the scope of the appended claims.

Claims (10)

1. a kind of Non-Touching Type Liquid Level Switch, it is characterised in that including:Measurement plate, ball float, support, inductance sensor, rotary shaft And signal handling equipment, the inside of testing container, the other end top fixed installation of support are fixed in one end of the support The one end for having inductance sensor, the rotary shaft can be rotatably mounted to the other end bottom of the support, the rotary shaft The other end be fixed in the measurement plate, the lower section of the measurement plate is fixedly connected with the ball float, the inductance sensor It is electrically connected with the signal handling equipment.
2. Non-Touching Type Liquid Level Switch according to claim 1, it is characterised in that the inductance sensor and measurement plate it Between spacing be 0~15mm.
3. Non-Touching Type Liquid Level Switch according to claim 1, it is characterised in that the width of the measurement plate is more than inductance The diameter of sensor.
4. Non-Touching Type Liquid Level Switch according to claim 1, it is characterised in that the extended line of the measurement plate passes through institute State the center of gravity of ball float.
5. Non-Touching Type Liquid Level Switch according to claim 1, it is characterised in that the measurement plate passes through with the ball float The mode of welding is attached.
6. Non-Touching Type Liquid Level Switch according to claim 1, it is characterised in that the measurement plate top passes higher than inductance The top of sensor at least 40mm.
7. Non-Touching Type Liquid Level Switch according to claim 1, it is characterised in that the inductance sensor is that current vortex is passed Sensor.
8. Non-Touching Type Liquid Level Switch according to claim 1, it is characterised in that the cross section of the support is T-shaped, and With horizontal segment and vertical section, wherein horizontal segment is fixedly connected on inside the testing container, and the vertical section is hung down with horizontal segment Directly be fixedly connected, the top of the vertical section of the support offers the mounting hole for install sensor, the support it is vertical Pars infrasegmentalis offers the perforate for installing rotary shaft.
9. Non-Touching Type Liquid Level Switch according to claim 8, it is characterised in that the mounting hole site is in the vertical section At top 1/4, and the inductance sensor is fixed in the mounting hole using nut.
10. Non-Touching Type Liquid Level Switch according to claim 1, it is characterised in that the ball float is metal ball float.
CN201621053651.8U 2016-09-13 2016-09-13 A kind of Non-Touching Type Liquid Level Switch Active CN206311178U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621053651.8U CN206311178U (en) 2016-09-13 2016-09-13 A kind of Non-Touching Type Liquid Level Switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621053651.8U CN206311178U (en) 2016-09-13 2016-09-13 A kind of Non-Touching Type Liquid Level Switch

Publications (1)

Publication Number Publication Date
CN206311178U true CN206311178U (en) 2017-07-07

Family

ID=59243259

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621053651.8U Active CN206311178U (en) 2016-09-13 2016-09-13 A kind of Non-Touching Type Liquid Level Switch

Country Status (1)

Country Link
CN (1) CN206311178U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109443496A (en) * 2018-12-29 2019-03-08 海南经纬乳胶丝有限责任公司 A kind of highly sensitive liquid level alarm device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109443496A (en) * 2018-12-29 2019-03-08 海南经纬乳胶丝有限责任公司 A kind of highly sensitive liquid level alarm device

Similar Documents

Publication Publication Date Title
CN209043430U (en) A kind of water level monitoring warning device of hydraulic engineering
CN104535134B (en) A kind of grade digital water level sensor detecting method
CN207248084U (en) A kind of detection device for communication pipe interior lights slippery
CN213363937U (en) Water amount monitoring device for foundation pit support structure
CN206311178U (en) A kind of Non-Touching Type Liquid Level Switch
CN108773598B (en) Online monitoring device and method for leakage of buried oil tank
CN211375106U (en) Hydrogeological disaster monitoring devices
CN206847721U (en) A kind of coal bunker level monitoring device
CN104501911A (en) Spiral spring wire pulling liquid level measurement instrument and measurement method thereof
CN207149477U (en) A kind of new gas relay
CN105784073B (en) TDR float switch formula water level sensor and its water level measurement method
CN210803469U (en) Intelligent soil pollution monitoring system
CN204330087U (en) Spiral clockwork spring line draws fluid level measuring instrument
CN205209600U (en) Yellow phosphorus liquid level measurement device
CN106950258A (en) The sender device of measurement residual acidity or basicity in ore pulp is leached for uranium mine
CN201589646U (en) Water level and temperature induction meter
CN202304946U (en) Sewer liquid level sensor
CN113517671B (en) Lightning protection device of water level sensor
CN205785332U (en) Integration remote measurement paddy field moisture water-level instrumentation
CN208872383U (en) A kind of float-type liquid level tester
CN208537741U (en) A kind of rainfall gauge with long service life
CN113502478A (en) Steel construction sacrificial anode cathodic protection effect monitoring devices
CN212539348U (en) Ultrasonic liquid level meter for tailing slurry suction pool of concentrating mill
CN2869803Y (en) Water-level detecting instrument
CN2203444Y (en) Gravity multi-point automatic charge level measuring sensor

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant