CN200982881Y - Liquid level display alarming device - Google Patents
Liquid level display alarming device Download PDFInfo
- Publication number
- CN200982881Y CN200982881Y CN 200620126532 CN200620126532U CN200982881Y CN 200982881 Y CN200982881 Y CN 200982881Y CN 200620126532 CN200620126532 CN 200620126532 CN 200620126532 U CN200620126532 U CN 200620126532U CN 200982881 Y CN200982881 Y CN 200982881Y
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- CN
- China
- Prior art keywords
- cylinder
- liquid level
- fixed
- wire rope
- alarm 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
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- Level Indicators Using A Float (AREA)
Abstract
The utility model discloses a liquid level displaying alarm device used in a coal washing plant. Because of the high thickness and density of the working fluid, t he utility model applies a wire-suspending floating ball through the guide wheel. A balancing-weight hammer drives a cylinder to rotate according to the up-down of the liquid level. The cylinder drives an adjustable electric resistance on a valve location transducer by gears and converts the electrical signal to the digital signal by a digital display controller to realize automatic liquid level digital display, automatic alarm when over alert and automatic control. The alarm device is not disturbed by the extraneous and is capable of being applicable to a plurality of working liquids with different thicknesses and densities.
Description
Technical field
The utility model relates to a kind of level display and alarm device, in particular for high viscosity liquid, and the level display and alarm device of large-scale liquid storage tank.
Background technology
The liquid level gauge that coal preparation plant uses, particularly to dense medium separation, very important to liquid level control requirement, it directly has influence on the quality of coal washing product.All there are weak point in supersonic liquid level device, float-ball type liquid level gauge etc. more widely in use at present, ultrasonic level gage wherein, its signal a little less than, be subjected to other powerful device easily, especially the harmonic interference of frequency converter, cause liquid level gauge to measure the error that number is put, even measuring liquid level accurately.The float-ball type liquid level gauge all has certain requirement to concentration, the denseness of medium, and in the medium dense, that denseness is bigger, the coal grain cements to become to block with between milk-globule and the slide bar, makes liquid level gauge malfunctioning.
Summary of the invention
The utility model provides a kind of level display and alarm device, its objective is shortcoming at supersonic liquid level device, milk-globule liquid level gauge, design a kind of Floating Ball Liquid Level system with guide wheel, cylinder, with the variation of liquid level by the mimic channel collection, digital processing also shows, reports to the police automatically, and liquid level numerical value is sent to liquid level control executive system.
The utility model is realized with following technical scheme: a kind of level display and alarm device, comprise fluid reservoir, be lifted on ball float and liquid level display system in the fluid reservoir, it is characterized in that: an end of wire rope lifting ball float is put on the liquid level of fluid reservoir, and the other end is walked around guide wheel several weeks and being fixed on the cylinder in the spiral grooves of cylinder one end again; Another wire rope one end lifting weight, other end several weeks and being fixed on the cylinder in the spiral grooves of the cylinder other end; Guide wheel is fixed on the wheel frame, and the face of cylinder, lower end of wheel frame is sleeved on by the axle sleeve sliding fit in the hole of fixed cover of support upper end, places steel ball in the groove at the bottom of the hole of fixed cover; Cylinder is fixed on the support by roller shelves; Fixed gear on the roller bearing of cylinder one end, the gear that is meshed with gear are fixed on the potentiometer shaft of valve position transmitter; The numeral display controller is respectively by signal wire and valve position transmitter, and alarm and tank level control system link.
The utility model has the advantages that: traditional ball float is adopted in the collection of liquid level signal, connect and the rotation of drive cylinder with wire rope, be delivered on the variable resistor in the valve position transmitter, convert electric signal input digit display control program again to, be transported to alarm and tank level control system again, this system is not subjected to the influence of extraneous electric signal, and the lifting of ball float simultaneously is not subjected to the restriction of the concentration and the denseness of medium, and it is accurate to measure numerical value.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the utility model liquid level acquisition system structural representation;
Fig. 2 shows and the control system schematic diagram for signal Processing.
Among the figure: 1, fluid reservoir, 2, ball float, 3, wire rope, 4, fixed cover, 5, axle sleeve, 6, wheel frame, 7, guide wheel, 8, support, 9, cylinder, 10, gear, 11, wire rope, 12, weight, 13 gears, 14, the valve position transmitter, 15, digital display controller, 16, alarm, 17, signal wire, 18, tank level control system, 19, roller shelves, 20, steel ball.
Embodiment
As shown in Figure 1, the milk-globule 2 of wire rope 3 lower ends lifting is put on fluid reservoir 1 liquid level, the other end of wire rope 3 is walked around guide wheel 7 again in the helicla flute of cylinder 9 one ends, its end is fixed on the cylinder 9, the wire rope 11 of another lifting weight 12 is fixed in the spiral grooves of cylinder 9 other ends and with cylinder, cylinder 9 is by on roller shelves 19 fixed supports 8, and guide wheel 7 is installed in fixed cover 4 holes on the support 8 by wheel frame 6, axle sleeve 5, steel ball 20, and guide wheel 7 can freely rotate.When the liquid level in the fluid reservoir changed, ball float moved up and down, and rotated along with the motion of wire rope 3,11 at the action of gravity bottom roll 9 of weight.Fixing gear 10 drives 14 of valve position transmitters and goes up 13 rotations of fixing gear on the drum shaft, and the potentiometer resistance that changes in the valve position transmitter 14 changes, and output current signal.
As shown in Figure 2, the electric current of valve position transmitter 14 output 4-20mA is transported in the digital display controller 18 by signal wire 17, after treatment liquid level numerical value is shown.When liquid level surpassed the regulation warning line, alarm 16 can be reported to the police automatically, and tank level control system 18 is regulated and control according to liquid level numerical value simultaneously, made liquid level in the fluid reservoir reach the numerical value of process stipulation.
Claims (2)
1, a kind of level display and alarm device, comprise fluid reservoir (1), be lifted on ball float (2) and liquid level display system in the fluid reservoir (1), it is characterized in that: an end of wire rope (3) lifting ball float (2) is put on the liquid level of fluid reservoir (1), and the other end is walked around guide wheel (7) several weeks and being fixed on the cylinder (9) in the spiral grooves of cylinder (9) one ends again; Another wire rope (11) one ends lifting weight (12), other end several weeks and being fixed on the cylinder (9) in the spiral grooves of cylinder (9) other end; Guide wheel (7) is fixed on the wheel frame (6), and the face of cylinder, lower end of wheel frame (6) is sleeved on by axle sleeve (5) sliding fit in the hole of fixed cover (4) of support (8) upper end, places steel ball (20) at the bottom of the hole of fixed cover (4) in the groove; Cylinder (9) is fixed on the support (8) by roller shelves (19); Fixed gear (10) on the roller bearing of cylinder (9) one ends, the gear (13) that is meshed with gear (10) is fixed on the potentiometer shaft of valve position transmitter (14); By signal wire (17) and valve position transmitter (14), alarm (16) and tank level control system (18) link numeral display controller (15) respectively.
2, a kind of level display and alarm device according to claim 1 is characterized in that: cylinder (9) two ends are two helicla flutes of wire rope fixedly, and its hand of spiral is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620126532 CN200982881Y (en) | 2006-11-17 | 2006-11-17 | Liquid level display alarming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620126532 CN200982881Y (en) | 2006-11-17 | 2006-11-17 | Liquid level display alarming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200982881Y true CN200982881Y (en) | 2007-11-28 |
Family
ID=38910038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620126532 Expired - Fee Related CN200982881Y (en) | 2006-11-17 | 2006-11-17 | Liquid level display alarming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200982881Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353423A (en) * | 2011-07-14 | 2012-02-15 | 苏州苏控自动化设备有限公司 | Homotaxial magnetic turning column liquid level meter |
| CN101623668B (en) * | 2009-08-10 | 2012-05-02 | 山西兰花科技创业股份有限公司 | Liquid level automatic balancing device |
| CN102748582A (en) * | 2012-07-03 | 2012-10-24 | 孙照云 | Rotary drain valve |
-
2006
- 2006-11-17 CN CN 200620126532 patent/CN200982881Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101623668B (en) * | 2009-08-10 | 2012-05-02 | 山西兰花科技创业股份有限公司 | Liquid level automatic balancing device |
| CN102353423A (en) * | 2011-07-14 | 2012-02-15 | 苏州苏控自动化设备有限公司 | Homotaxial magnetic turning column liquid level meter |
| CN102353423B (en) * | 2011-07-14 | 2012-11-14 | 苏州苏控自动化设备有限公司 | Homotaxial magnetic turning column liquid level meter |
| CN102748582A (en) * | 2012-07-03 | 2012-10-24 | 孙照云 | Rotary drain valve |
| CN102748582B (en) * | 2012-07-03 | 2015-05-20 | 孙照云 | Rotary drain valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |