CN109405930A - Magnetic double level gauge with temperature self adjusting system - Google Patents
Magnetic double level gauge with temperature self adjusting system Download PDFInfo
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- CN109405930A CN109405930A CN201811394582.0A CN201811394582A CN109405930A CN 109405930 A CN109405930 A CN 109405930A CN 201811394582 A CN201811394582 A CN 201811394582A CN 109405930 A CN109405930 A CN 109405930A
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- liquid level
- level gauge
- magnetic
- float
- temperature
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- 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
- G01F23/30—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 floats
- G01F23/64—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 floats of the free float type without mechanical transmission elements
- G01F23/72—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 floats of the free float type without mechanical transmission elements using magnetically actuated indicating means
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
本发明公开了一种具有温度自调节系统的磁翻板液位计，包括液位计本体、磁浮子、浮子液位计、标尺、阴极显示器、进水管、出水管、上液位开关、下液位开关以及温度传感器，所述的浮子液位计和标尺分别设置在液位计本体的外侧边，所述的阴极显示器设置在标尺的侧边，所述的上液位开关和下液位开关设置在液位计本体的另一侧边并与进水管和出水管的位置相对应，所述的温度传感器设置在出水管上。通过上述，本发明作了电阻的温度补偿，大大提高了检测的精度，减小偏差；精确的输出液位报警信号，防止误报警；增加了温度报警系统，有效的防止高温对设备的损坏；由于测量更精准稳定，提高产品的使用寿命和安全性。
The invention discloses a magnetic flap liquid level gauge with a temperature self-regulating system, comprising a liquid level gauge body, a magnetic float, a float liquid level gauge, a ruler, a cathode display, a water inlet pipe, a water outlet pipe, an upper liquid level switch, a lower A liquid level switch and a temperature sensor, the float level gauge and the ruler are respectively arranged on the outer side of the liquid level gauge body, the cathode display is arranged on the side of the ruler, the upper liquid level switch and the lower liquid The level switch is arranged on the other side of the liquid level gauge body and corresponds to the position of the water inlet pipe and the water outlet pipe, and the temperature sensor is arranged on the water outlet pipe. Through the above, the present invention makes the temperature compensation of the resistance, greatly improves the detection accuracy and reduces the deviation; accurately outputs the liquid level alarm signal to prevent false alarms; adds a temperature alarm system to effectively prevent the damage to the equipment due to high temperature; Because the measurement is more accurate and stable, the service life and safety of the product are improved.
Description
Technical field
The present invention relates to the fields of the instrument and meter of industrial automation more particularly to a kind of with temperature self adjusting system
Magnetic double level gauge directly applies to water process, chemical industry, ship, petroleum, bio-pharmaceuticals, environmental protection, municipal administration, food, beverage machine
Etc. industries.
Background technique
Currently, magnetic float liquidlevel meter has entered computer age, enters so-called Automated library system Process Control System
The epoch of (Computer Integrated Process System, CIPS).CIPS utilizes computer technology, to entire enterprise
The operation of industry carries out integrated management and control, including the marketing, Production Scheduling, raw material selection, product distribution,
The overall processes such as cost management and the control of technical process, optimization and management.Dcs, Advanced process control plan
Summary and network technology, database technology etc. will realize the important foundation of CIPS.It is contemplated that process control will be in China
Developed faster during socialist modernization drive.
Magnetic double level gauge used at present is designed based on buoyancy and magnetic force principle.Floating ball with magnet is (referred to as
Floating ball) position in measured medium influenced by buoyancy: the variation of liquid level leads to the variation of magnetic float position.In floating ball
Magnet and conduit in sensor (magnetic reed switch) effect, make the quantity connected in conduit into the element (fixed value resistance) of circuit
It changes, and then the electrical quantities (current value) of appliance circuit system is made to change.Namely make the change of magnetic float position
Change the variation for causing current value size, to export the also corresponding current signal of liquid level or switching signal.It is real according to customer demand
The long-range control or alarm of existing automatic equipment.
Conduit portion is immersed in detected solution, and the temperature in conduit changes with the variation of fluid temperature.It is fixed in conduit
It is worth resistance, resistance value can generate variation in temperature change, to influence to export electric current, make the output also corresponding current signal of liquid level
Or switching signal inaccuracy, corresponding level value error are too big.
In the case where temperature change is little, actual liquid level deviation is little.But actually use very big (such as liquid of the process temperature difference
Temperature degree variation repeatedly from 0 degree to 90), the signal value of output cannot accurately be matched with actual liquid level, influence the control of equipment
Precision processed.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of magnetic double level gauges with temperature self adjusting system, make
The temperature-compensating of resistance substantially increases the precision of detection, reduces deviation；Accurate output liquid level warning signal, prevents from missing
Alarm；Temperature alarm system is increased, damage of the high temperature to equipment is effectively prevented；More precisely stablize due to measuring, improves and produce
The service life and safety of product.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: it provides a kind of with temperature self-regulating
The magnetic double level gauge of section system, including liquidometer ontology, magnetic float, float level meter, scale, cathode display, water inlet pipe,
Outlet pipe, upper liquid-level switch, lower liquid-level switch and temperature sensor, the magnetic float are arranged in liquidometer ontology
Portion, the float level meter and scale are separately positioned on the outer side edges of liquidometer ontology, and the cathode display setting exists
The side of scale, the water inlet pipe and outlet pipe are horizontally installed on a side of liquidometer ontology, the upper liquid level respectively
Another side of liquidometer ontology and corresponding with the position of water inlet pipe and outlet pipe is arranged in switch and lower liquid-level switch, described
Temperature sensor be arranged on outlet pipe.
In a preferred embodiment of the present invention, the liquidometer ontology uses hollow structure, the liquidometer sheet
It is placed with liquid in vivo.
In a preferred embodiment of the present invention, the magnetic float uses the column type floating ball with magnet.
In a preferred embodiment of the present invention, corresponding in the magnet driving cathode display in the magnetic float
Magnetic turns over pearl overturning 180 degree.
In a preferred embodiment of the present invention, the lower end of the liquidometer ontology is provided with blowdown valve.
In a preferred embodiment of the present invention, be respectively arranged on the water inlet pipe and outlet pipe connecting flange and
Lower connecting flange.
In a preferred embodiment of the present invention, the magnetic double level gauge further includes terminal box, the terminal box
Be arranged on liquidometer ontology, terminal plate in the terminal box and float level meter, upper liquid-level switch, lower liquid-level switch and
Temperature sensor is connected.
In a preferred embodiment of the present invention, the analog signal of the terminal box output alarm signal and 4-20mA.
The beneficial effects of the present invention are: a kind of magnetic double level gauge with temperature self adjusting system of the invention, makees
The temperature-compensating of resistance substantially increases the precision of detection, reduces deviation；Accurate output liquid level warning signal, prevents from reporting by mistake
It is alert；Temperature alarm system is increased, damage of the high temperature to equipment is effectively prevented；More precisely stablize due to measuring, improves product
Service life and safety.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is the structural schematic diagram of a preferred embodiment of the magnetic double level gauge that the present invention has temperature self adjusting system；
Fig. 2 is the circuit diagram of Fig. 1；
The label in accompanying drawing is: 1, liquidometer ontology, 2, magnetic float, 3, float level meter, 4, scale, 5, cathode display, 6,
Water inlet pipe, 7, outlet pipe, 8, upper liquid-level switch, 9, lower liquid-level switch, 10, temperature sensor, 11, blowdown valve, 12, upper connection method
Orchid, 13, lower connecting flange, 14, terminal box.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
As shown in Figure 1, the embodiment of the present invention includes:
A kind of magnetic double level gauge with temperature self adjusting system, including liquidometer ontology 1, magnetic float 2, float level meter 3,
Scale 4, cathode display 5, water inlet pipe 6, outlet pipe 7, upper liquid-level switch 8, lower liquid-level switch 9 and temperature sensor 10, institute
The inside of liquidometer ontology 1 is arranged in the magnetic float 2 stated, and the float level meter 3 and scale 4 are separately positioned on liquidometer sheet
The side of scale 4 is arranged in the outer side edges of body 1, the cathode display 5, and the water inlet pipe 7 and outlet pipe 8 are lateral respectively
A side of liquidometer ontology 1 is set, and the another of liquidometer ontology 1 is arranged in the upper liquid-level switch 8 and lower liquid-level switch 9
A side is simultaneously corresponding with the position of water inlet pipe 6 and outlet pipe 7, and the temperature sensor 10 is arranged on outlet pipe 7.
Among the above, the liquidometer ontology 1 uses hollow structure, is placed with liquid in the liquidometer ontology 1.
In the present embodiment, the lower end of the liquidometer ontology 1 is provided with blowdown valve 11, the water inlet pipe 6 and water outlet
Connecting flange 12 and lower connecting flange 13 are respectively arranged on pipe 7.
Further, the magnetic double level gauge further includes terminal box 14, and the terminal box 14 is arranged in liquidometer
Terminal plate (figure does not regard) and float level meter 3, upper liquid-level switch 8, lower liquid-level switch 9 on ontology 1, in the terminal box 14
It is connected with temperature sensor 10.
Function declaration is carried out in conjunction with the circuit diagram of Fig. 2:
1. terminal box
Protect circuit board having built-in.By the switch letter of the electric signal of float level meter output and upper liquid-level switch, lower liquid-level switch
Number, it connects on wiring board, is converted by line signal, the analog signal of alarm signal and 4-20mA is exported, for outer taking alarm
It is used with display.The signal that temperature sensor is inputted is converted into control signal, is external on temperature alarm system.
2. float level meter
It is acted on using the sensor (magnetic reed switch) in conduit and the magnet magnetic couplings in float, makes to connect in conduit into circuit
The quantity of element (fixed value resistance) change, and then the electrical quantities (current value) of appliance circuit system is made to change, from
And current value corresponding with liquid level is exported, it is supplied to control circuit board.
Connecting flange and lower connecting flange on 3.
Lower flange is docked with lower flange on container on liquidometer, is constituted linker, is made the liquid in the liquid level and magnetic turning plate in container
Position is contour, isobaric.
4. temperature sensor
With the variation of liquid level, also equivalent changes the current value of pressure sensor output, in this way, each liquid level has one
A corresponding current value acquires signal for control route.
5. magnetic float
Magnetic float uses the column type floating ball with magnet, is built in magnetic turning plate ontology, as the lifting of liquid level is also gone up and down, leads to
Cross magnetic coupling interaction, in magnet in float driving cathode display corresponding magnetic turn over pearl overturning 180 degree (bleached by red, or
It is red by leucismus), and with red continuous instruction liquid level.When magnetic float position is in upper and lower liquid-level switch, triggering magnetic red is opened
On-off is closed, so that it be made to export a switching signal.
6. scale
Indicate the height of liquid level, scale is usually white to turn over pearl boundary red.
7. cathode display
Cathode display turns over pearl by magnetism and forms, and when intrinsic floating ball rises or falls with liquid level, magnetic turns over pearl overturning,
It can show the height of liquid level.
Liquid-level switch and lower liquid-level switch on 8.
By with self-retaining function tongue tube and converter form, when magnetic float is with the lifting of liquid level, since magnetic coupling is made
With triggering magnetic reed switch on-off, to export a switching signal to control circuit board.
A kind of magnetic double level gauge with temperature self adjusting system of the invention has following excellent compared with prior art
Point:
(1) application range is expanded, under 40 DEG C to+125 DEG C liquid levels, can be used；
(2) due to having made the temperature-compensating of resistance, the precision of detection is substantially increased, is reduced deviation (being reduced to 0.2% from 3%)；
(3) using the switching signal of upper and lower liquid-level switch output, the analog signal of combination pressure sensor generates association interlocking,
Accurate output liquid level warning signal, prevents false alarm；
(4) temperature alarm system is increased, damage of the high temperature to equipment is effectively prevented；
(5) more precisely stablize due to measuring, improve the service life and safety of product.
Due to resistance build-in attribute (temperature drift of resistance), sampling resistor resistance value in temperature change can generate variation, utilize
Temperature sensor detection sampling fluid to be measured ambient temperature, is handled by ATMEGA8-AU processor analysis, gives figure-shift device
Instruction is issued, rectification building-out is done to output electric current or signal, is not changed with the change of temperature to reach output valve, is improved real
The measurement accuracy of border liquid level.By upper and lower liquid-level switch, Liquid level interlocking alarm system is increased；Meanwhile it is high in order to prevent
Damage of the temperature to magnetic double level gauge, external temperature alarm system.
In conclusion a kind of magnetic double level gauge with temperature self adjusting system of the invention, has made the temperature of resistance
Compensation substantially increases the precision of detection, reduces deviation；Accurate output liquid level warning signal, prevents false alarm；Increase temperature
Alarm system is spent, damage of the high temperature to equipment is effectively prevented；Due to measure more precisely stablize, improve product service life and
Safety.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394582.0A CN109405930A (en) | 2018-11-22 | 2018-11-22 | Magnetic double level gauge with temperature self adjusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394582.0A CN109405930A (en) | 2018-11-22 | 2018-11-22 | Magnetic double level gauge with temperature self adjusting system |
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| Publication Number | Publication Date |
|---|---|
| CN109405930A true CN109405930A (en) | 2019-03-01 |
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ID=65474627
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811394582.0A Pending CN109405930A (en) | 2018-11-22 | 2018-11-22 | Magnetic double level gauge with temperature self adjusting system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440670A (en) * | 2019-08-15 | 2019-11-12 | 中海石油深海开发有限公司 | A kind of production tree raising automated watch-keeping facility |
| CN113483853A (en) * | 2021-08-12 | 2021-10-08 | 西门子电站自动化有限公司 | Device and method for measuring level value of drain tank |
| CN113776626A (en) * | 2021-08-13 | 2021-12-10 | 杭州海芯达科技有限公司 | Anti-fluctuation liquid level measuring device |
| CN117091674A (en) * | 2023-10-20 | 2023-11-21 | 磐石重工(青岛)股份有限公司 | Liquid level measuring device for pressure container |
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| JPH10111165A (en) * | 1996-10-07 | 1998-04-28 | Nissan Motor Co Ltd | Magnetic liquid level gauge |
| CN203587188U (en) * | 2013-11-18 | 2014-05-07 | 新昌县大本仪表有限公司 | Magnetic reversible column liquid level gauge |
| CN204514435U (en) * | 2015-04-16 | 2015-07-29 | 甘德顺 | A kind of anti-frozen block magnetic float liquidlevel meter |
| CN106768189A (en) * | 2017-03-13 | 2017-05-31 | 苏州固宜电子科技有限公司 | Plug-in type magnetic float liquidlevel meter with temperature self-adaptation system |
| CN206430788U (en) * | 2017-02-14 | 2017-08-22 | 江苏联盟化学有限公司 | Magnetic double level gauge |
| CN209148099U (en) * | 2018-11-22 | 2019-07-23 | 苏州固宜电子科技有限公司 | Magnetic double level gauge with temperature self adjusting system |
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2018
- 2018-11-22 CN CN201811394582.0A patent/CN109405930A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10111165A (en) * | 1996-10-07 | 1998-04-28 | Nissan Motor Co Ltd | Magnetic liquid level gauge |
| CN203587188U (en) * | 2013-11-18 | 2014-05-07 | 新昌县大本仪表有限公司 | Magnetic reversible column liquid level gauge |
| CN204514435U (en) * | 2015-04-16 | 2015-07-29 | 甘德顺 | A kind of anti-frozen block magnetic float liquidlevel meter |
| CN206430788U (en) * | 2017-02-14 | 2017-08-22 | 江苏联盟化学有限公司 | Magnetic double level gauge |
| CN106768189A (en) * | 2017-03-13 | 2017-05-31 | 苏州固宜电子科技有限公司 | Plug-in type magnetic float liquidlevel meter with temperature self-adaptation system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440670A (en) * | 2019-08-15 | 2019-11-12 | 中海石油深海开发有限公司 | A kind of production tree raising automated watch-keeping facility |
| CN113483853A (en) * | 2021-08-12 | 2021-10-08 | 西门子电站自动化有限公司 | Device and method for measuring level value of drain tank |
| CN113776626A (en) * | 2021-08-13 | 2021-12-10 | 杭州海芯达科技有限公司 | Anti-fluctuation liquid level measuring device |
| CN113776626B (en) * | 2021-08-13 | 2023-10-20 | 杭州海芯达科技有限公司 | Anti-fluctuation liquid level measuring device |
| CN117091674A (en) * | 2023-10-20 | 2023-11-21 | 磐石重工(青岛)股份有限公司 | Liquid level measuring device for pressure container |
| CN117091674B (en) * | 2023-10-20 | 2024-01-30 | 磐石重工(青岛)股份有限公司 | Liquid level measuring device for pressure container |
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Application publication date: 20190301 |