CN205066888U - Novel magnetism formula level gauge - Google Patents

Novel magnetism formula level gauge Download PDF

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Publication number
CN205066888U
CN205066888U CN201520273596.2U CN201520273596U CN205066888U CN 205066888 U CN205066888 U CN 205066888U CN 201520273596 U CN201520273596 U CN 201520273596U CN 205066888 U CN205066888 U CN 205066888U
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China
Prior art keywords
liquid level
float
magnetic
level gauge
magnetism
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CN201520273596.2U
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Chinese (zh)
Inventor
陆洪波
王栋
成涛
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Shanghai Meishan Iron and Steel Co Ltd
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Shanghai Meishan Iron and Steel Co Ltd
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Abstract

The utility model relates to a novel magnetism formula level gauge, a serial communication port, magnetism formula level gauge includes magnetism liquid level changer, the DCS controller, magnetism liquid level changer top is provided with the terminal box, magnetism liquid level changer below is provided with float subassembly and backstop piece, it winds around the capillary to twine light elasticity around the magnetism liquid level changer 3, the below of terminal box is provided with solenoid valve and intake pipe joint. The utility model has the advantages that: , 1 )This technical scheme overall structure design benefit, convenient operation, safe and reliable, easy dismounting, 2 )This technical scheme realizes that single level gauge can conveniently detect out waste residue height under slag settling tank liquid level and the liquid level, 3 )This technical scheme adopts the magnetic floater design of submarine formula, makes things convenient for the float to rise and fall under liquid is middle and upper, 4 )This technical scheme passes through the logic control and the operation of DCS controller, liquid level height and waste residue height in ability intelligent judgment and the measuring cell.

Description

A kind of novel magnetic formula liquid level gauge
Technical field
The utility model relates to a kind of liquid level gauge, particularly a kind of novel magnetic formula liquid level gauge, is applied in the magnetic fluid level gauge for liquid level in measuring cell and substrate position, pond such as Industry Waste pond, detritus tank, belongs to level gauging equipment technical field.
Background technology
The height of liquid medium is called liquid level in a reservoir, and measure the instrument of liquid level liquid level gauge, liquid level counts the one of level meter.The type of liquid level gauge has tuning fork vibrating type, maglev type, pressure type, ultrasound wave, sonar ripple, magnetic turnover panel, radar etc., in industrial and mining enterprises as detritus tank, the level gauging in flushing cinder pond etc., mostly can only detect its liquid level, but can not the real height of waste residue below tracer liquid, its deslagging can only lean on technological process and experience to carry out deslagging, often there will be deslagging not in time, or bed drain purge is very few, cause the undesirable and energy dissipation of deslagging effect, for this technician, those skilled in the art is also in trial solution, the patent No. is 201120449210.0, name is called, oneplant the magnetic flap level gauge improved ,the magnetic flap level gauge improved, comprise liquid level gauge, the joint flange on liquid level gauge top and a relief tube, described relief tube is connected to the upper flange junction of described liquid level gauge, and is connected with the top of described liquid level gauge.Described relief tube is provided with a valve.Although this liquid level gauge improves the accuracy of measurement to a certain extent, the accuracy of measuring for sediment does not provide too greatly, and root problem does not solve.Therefore, a kind of new scheme of exigence solves the problems of the technologies described above.
Utility model content
The utility model, just for the technical matters existed in prior art, provides a kind of novel magnetic formula liquid level gauge, and this device is can the on-the-spot intelligent detection device automatically detecting and judge pond liquid level and substrate position, pond height.
To achieve these goals, the technical solution adopted in the utility model is as follows, a kind of novel magnetic formula liquid level gauge, it is characterized in that, described magnetic liquid level gauge comprises magnetic level transmitter, DCS controller, is provided with terminal box above described magnetic level transmitter, is provided with float assembly and stop block below described magnetic level transmitter, surrounding's winding lightweight flexible of described magnetic level transmitter curls up kapillary, and the below of described terminal box is provided with solenoid valve and draft tube joint.This Technical Design is ingenious compact, can detect the novel magnetic formula liquid level gauge of waste residue height under detritus tank liquid level and liquid level easily, and can provide real-time sediment weight, solves deslagging not in time preferably, or the problem that bed drain purge is very few.
Improve as one of the present utility model, described float assembly comprise magnetic float, be arranged on the magnet of magnetic float inside, float-type cork, described float-type cork is through float paddle hole.
Improve as one of the present utility model, described float-type cork two ends are all set to mushroom.
Improve as one of the present utility model, the diameter that described lightweight flexible curls up kapillary is 2-3mm.
Relative to prior art, advantage of the present utility model is as follows, 1) this technical scheme overall construction design is ingenious, easy to operate, safe and reliable, easy accessibility; 2) this technical scheme realizes single liquid level gauge and can detect waste residue height under detritus tank liquid level and liquid level easily; 3) this technical scheme adopts the magnetic float design of submarine formula, facilitates float to rise and fall up and down in a liquid; 4) this technical scheme is by the logic control of DCS controller and computing, can liquid level and waste residue height in intelligent decision and measuring cell.
5) this device have that structure is simple, cost is lower, long service life, replacing and the feature such as easy to maintenance, whole technical scheme is convenient to promote the use of on a large scale.
Accompanying drawing explanation
Fig. 1 is magnetic liquid level gauge structural drawing
Fig. 2 is magnetic float sectional view:
Fig. 3 is DCS measuring principle block scheme;
Fig. 4 is magnetic liquid level gauge wiring diagram;
Fig. 5 is waste residue process of measurement process flow diagram;
Fig. 6 is liquid level measuring procedure process flow diagram.
In figure: 1-terminal box, 2-lightweight flexible curl up kapillary, 3-magnetic level transmitter, 4-magnetic float, 5-stop block, 6-draft tube joint, 7-solenoid valve; 8-capillary tube connector, 9-magnet, 10-float-type cork, 11-float paddle hole.
Embodiment
In order to deepen understanding and cognition of the present utility model, below in conjunction with accompanying drawing the utility model be further described and introduce.
embodiment 1: see Fig. 1, a kind of novel magnetic formula liquid level gauge, described magnetic liquid level gauge comprises magnetic level transmitter 3, DCS controller, terminal box 1 is provided with above described magnetic level transmitter 3, float assembly and stop block 5 is provided with below described magnetic level transmitter 3, surrounding's winding lightweight flexible of described magnetic level transmitter 3 curls up kapillary 2, the diameter that lightweight flexible curls up kapillary is 2-3mm, the below of described terminal box is provided with solenoid valve and draft tube joint, described float assembly comprises magnetic float 4, be arranged on the magnet of magnetic float inside, float-type cork 10, described float-type cork 10 is through float paddle hole 11.In this technical scheme lightweight flexible curl up that the effect of kapillary 2 is following, the rising of magnetic float 4 or decline, because its elastic reaction can guarantee that lightweight flexible curls up kapillary 2 and fitly curls up on the sounding rod of magnetic level transmitter 3; Lightweight flexible curls up the flow that kapillary 2 effectively can control pressurized air air inlet and exhaust, reaches the object in low discharge turnover magnetic float 4 cavity.Low discharge air inlet can prevent pressurized air to the impact of magnetic float 4, causes magnetic float 4 side not on the sounding rod of magnetic level transmitter 3, and low discharge air inlet simultaneously can make fluid removal in magnetic float 4 cavity more stable, more thoroughly; Primary exhaust flow can make magnetic float 4 slowly intake, and float is little on the impact of float surrounding water, prevents particle suspensions from sucking; In this technical scheme, float-type cork 10 is when pressurizeing to magnetic float 4 cavity, is suspended in the liquid in cavity due to float-type cork 10, can effectively by the fluid removal in magnetic float 4 cavity, until closed float paddle hole 11 completely; When reducing pressure to magnetic float 4 cavity, due to the Action of Gravity Field of magnetic float 4, the liquid magnetropism float 4 in pond is slowly intake, and float-type cork 10 rises with liquid level in cavity and rises, until float-type cork 10 downward obstruction float paddle hole 11, prevent particle at the bottom of pond from entering in cavity.This Technical Design is ingenious compact, can detect the novel magnetic formula liquid level gauge of waste residue height under detritus tank liquid level and liquid level easily, and can provide real-time sediment weight, solves deslagging not in time preferably, or the problem that bed drain purge is very few.
embodiment 2: see Fig. 1, Fig. 2, improve as one of the present utility model, described float-type cork 10 two ends are all set to mushroom.
Principle of work:
With reference to Fig. 1, Fig. 4, compressed air hose is accessed the draft tube joint 6 of magnetic level transmitter 3; The level gauging 4-20mA simulating signal that magnetic level transmitter 3 exports accesses DCS input end from terminal box 1; The output switch parameter of DCS is connected on solenoid valve 7 coil of magnetic level transmitter 3, opens compressed air inlet valve door, DCS power transmission, can carry out the level gauging of detritus tank.
See Fig. 1-Fig. 3, the principle of its level gauging: when carrying out level gauging, DCSDO output contact closure signal, power supply is powered to two-bit triplet solenoid valve 7 by DCS circuit-closing contacts, pressurized air is by solenoid valve 7, lightweight flexible curls up kapillary 2, magnetropism float 4 is inflated, magnetic float 4 internal pressure is raised gradually, the float paddle hole 11 of liquid in cavity by magnetic float 4 is slowly forced out, float-type cork 10 declines with liquid level in cavity and declines, until complete closed float paddle hole 11, in magnetic float 4, pressure acts on float-type cork 10 simultaneously, strengthen its sealing property, now magnetic float 4 density declines, and buoyancy rises, and magnetic float 4 floats up to liquid level, and water-level gauge carries out Real-time Liquid Level Measurement.
When carrying out pond bottom waste residue elevation carrection, DCSDO output contact open circuit signaling, two-bit triplet solenoid valve 7 dead electricity, magnetic float 4 internal pressure curls up kapillary 2 by lightweight flexible, solenoid valve 7 is slowly vented to sky, due to the Action of Gravity Field of magnetic float 4, liquid in pond begins through the inner slowly water inlet of float paddle hole 11 magnetropism float 4 of magnetic float 4, magnetic float 4 inside liquid level is caused to rise, float-type cork 10 rises with liquid level in cavity and rises, until float-type cork 10 downward obstruction float paddle hole 11, magnetic float 4 density slowly rises simultaneously, magnetic float 4 declines pond bottom waste residue upper surface, water-level gauge carries out real-time waste residue elevation carrection.
Compressed-air actuated pressure is generally set as 2 times of liquid level gauge range, minimumly can not be less than 100KPa, and it act as: 1, can effectively by the fluid removal in magnetic float 4 cavity; 2, after the liquid in magnetic float 4 cavity is discharged, the pressure in cavity acts on float-type cork 10, increases its sealing property.
DCS surveying work principle, shown in Fig. 3:
MAV moving average module, the input H1 of MAV is input signal, and P1 is the min(time) export formula and be:
The physical significance of this formula is to 16 clapping H1 data and average within forward direction P1 minute, a smoothing processing of carrying out sampled data.The general value of P1 is 10-30 second.The input signal of signal comparator is respectively MAV moving average module output signal and level gauging signal, and its difference > 2% exports high level, and difference≤2% exports low and high level.K1, K2, K6 are high level conducting, and low level disconnects; K3, K4, K5 are low level 0-1 conducting, high level 0-2 conducting.Signal latch is that rising edge triggers.
Timer high level triggers, output low level in timing, and DCS enters the level gauging stage; Timing then exports high level, and DCS enters waste residue height measuring phase; Timing time is adjustable, is generally set within the scope of 30 ~ 240 minutes according to technique.
See Fig. 6, when level gauging, timer output low level, a road makes K6 closed electrical through reverser F1, and solenoid valve 7 obtains electric, and magnetic float rises; The rising edge that reverser F1 exports triggers waste residue latch, makes it latch instant thing position signal, through K1 in the display of DCS picture waste residue altitude signal display position, and keeps.The input end with door is removed on one tunnel.One tunnel makes K2 disconnect, the 0-1 conducting of K3, K5.Because solenoid valve 7 obtains electric, magnetic float slowly rises, cause level gauging signal ascending velocity much larger than moving average module output signal, signal comparator exports high level, make the 0-2 conducting of K4, now the signal that exports of level gauging signal latch is through the 0-1 of 0-2, K5 of 0-1, K4 of K3 in DCS picture level gauging Signal aspects position display, and keeps.When float rises to liquid level top, level gauging signal and moving average module output signal basically identical, signal comparator output low level, makes the 0-1 conducting of K4, now level gauging signal through the 0-1 of 0-1, K5 of K4 at DCS picture level gauging Signal aspects position display real-time level.
, timer exports high level, and a road makes K6, K1 disconnect through reverser, solenoid valve 7 dead electricity see Fig. 5, when waste residue is measured, during timer then, and magnetic float declines; One tunnel makes K2 conducting, the 0-2 conducting of K3, K5.The rising edge that timer exports triggers liquid level latch, makes it latch instant thing position signal, through K2 in DCS picture level gauging Signal aspects position display, and keeps.The input end with door is removed on one tunnel.Due to solenoid valve 7 dead electricity, magnetic float slowly declines, cause level gauging signal decline rate much larger than moving average module output signal, signal comparator exports high level, make the 0-2 conducting of K4, the signal that now waste residue altitude signal latch exports shows at DCS picture waste residue altitude signal display position through the 0-2 of 0-2, K5 of 0-2, K4 of K3, and keeps.When float drops to waste residue top, level gauging signal and moving average module output signal basically identical, signal comparator output low level, make the 0-1 conducting of K4, now level gauging signal through the 0-2 of 0-1, K5 of K4 at the real-time waste residue height of DCS picture level gauging Signal aspects position display.The low level of signal comparator exports high level through reverser F2 and timer and sends into the input end with door, and now export the timing of high level triggered timer with door and start, timer output low level, DCS enters the level gauging stage.
At least one in technical characteristic described in embodiment 2,3 and embodiment 1 can also combine by the utility model, form new embodiment.
It should be noted that above-described embodiment, be not used for limiting protection domain of the present utility model, equivalents done on the basis of technique scheme or the alternative scope all falling into the utility model claim and protect.

Claims (3)

1. a novel magnetic formula liquid level gauge, it is characterized in that, described magnetic liquid level gauge comprises magnetic level transmitter, DCS controller, terminal box is provided with above described magnetic level transmitter, be provided with float assembly and stop block below described magnetic level transmitter, surrounding's winding lightweight flexible of described magnetic level transmitter curls up kapillary, and the below of described terminal box is provided with solenoid valve and draft tube joint.
2. novel magnetic formula liquid level gauge according to claim 1, is characterized in that, described float assembly comprises magnetic float, is arranged on the magnet of magnetic float inside, float-type cork, and described float-type cork is through float paddle hole.
3. novel magnetic formula liquid level gauge according to claim 2, is characterized in that, the diameter that described lightweight flexible curls up kapillary is 2-3mm.
CN201520273596.2U 2015-04-30 2015-04-30 Novel magnetism formula level gauge Active CN205066888U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111029210A (en) * 2019-12-10 2020-04-17 安庆中船柴油机有限公司 Multifunctional marine fuel liquid level switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111029210A (en) * 2019-12-10 2020-04-17 安庆中船柴油机有限公司 Multifunctional marine fuel liquid level switch
CN111029210B (en) * 2019-12-10 2022-03-15 安庆中船柴油机有限公司 Multifunctional marine fuel liquid level switch

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