CN108716942A - A kind of dual chamber is shut off negative pressure float level meter - Google Patents
A kind of dual chamber is shut off negative pressure float level meter Download PDFInfo
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- CN108716942A CN108716942A CN201810642690.9A CN201810642690A CN108716942A CN 108716942 A CN108716942 A CN 108716942A CN 201810642690 A CN201810642690 A CN 201810642690A CN 108716942 A CN108716942 A CN 108716942A
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- pressure
- stabilizing
- measuring cylinder
- tube
- liquid level
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Classifications
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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
- G01F23/74—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 for sensing changes in level only at discrete points
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The present invention discloses a kind of dual chamber and shuts off negative pressure float level meter, the measuring cylinder of magnetic float is equipped with including magnetostrictive liquid level transducer, Liquid level scale, tube of pressure-stabilizing and inner cavity, magnetostrictive liquid level transducer is mounted in measuring cylinder, Liquid level scale is arranged along measuring cylinder length direction and on the outside of measuring cylinder, the bottom of measuring cylinder is equipped with sewage draining exit, the bottom end of tube of pressure-stabilizing is connected to the lower part of measuring cylinder, the top of tube of pressure-stabilizing is connected to the top of measuring cylinder, and the upper and lower part of side of the tube of pressure-stabilizing far from measuring cylinder is equipped with opening.The present invention can solve the problems, such as liquid level gauge negative pressure measurement card ball, realize gradient cooling, be used for worst hot case occasion, liquid level, interface, output 4-20mA and HART signal are measured simultaneously, liquid level and interface when can also refer on the spot, in multifunctional measuring in the liquid level instrument of one.
Description
Technical field
The present invention relates to liquid level gauge technical fields, and in particular to a kind of dual chamber is shut off negative pressure float level meter.
Background technology
Magnetic fluid level gauge linker upper and lower port is connected with the flange of container, by the magnetic float in linker with liquid level
The generation that floats up and down magnetic coupling, drive the magnetic turning plate magnetic pole outside it to stir, show different colors, indicate tank fill level
Highly, it is directly read by the graduated scale in magnetic turning plate.In industrial applications, negative pressure is caused since technique is unstable, is used
In, so that magnetic float is stuck in the connector on linker top by suction function, liquid level gauge is caused to be unable to normal use.Some applications
Operating mode needs magnetic fluid level gauge that can measure liquid level and interface, output 4-20mA and HART signal, liquid level when can also refer on the spot simultaneously
The interface and.
Scene is allowed to disappear in the integral type level sensing instrument that magnetostriction liquidometer is used cooperatively with magnetic float liquidlevel meter
Except most cable interfaces are connected with process, has the function of live liquid level instruction and teletransmission, and magnetostriction liquidometer and magnetic
Float level meter also possesses the advantages that maintenance is simple, without demarcating after integrating use, can be greatly reduced product cost and safeguard at
This.But it is still difficult to accurately measure liquid level under worst hot case.
Invention content
In order to solve the above-mentioned technical problem the present invention provides a kind of dual chamber and shuts off negative pressure float level meter, can solve liquid
The problem of position meter negative-pressure card ball, realizes gradient cooling, more accurately measures high-temp liquid liquid level.For worst hot case occasion, together
When measure liquid level, interface, output 4-20mA and HART signal, liquid level and interface when can also refer on the spot, in multifunctional measuring in one
The liquid level instrument of body.
The technical solution that the present invention solves above-mentioned technical problem is as follows：A kind of dual chamber is shut off negative pressure float level meter, packet
Include the measuring cylinder that magnetostrictive liquid level transducer, Liquid level scale, tube of pressure-stabilizing and inner cavity are equipped with magnetic float, the magnetostriction liquid
Position transmitter is mounted in the measuring cylinder, and the Liquid level scale is arranged along the measuring cylinder length direction and is mounted on the survey
On the outside of graduated cylinder, the bottom of the measuring cylinder is equipped with sewage draining exit, and the bottom end of the tube of pressure-stabilizing is connected to the lower part of the measuring cylinder, institute
The top for stating tube of pressure-stabilizing is connected to the top of the measuring cylinder, and the top of side of the tube of pressure-stabilizing far from the measuring cylinder is under
Portion is equipped with opening.
The beneficial effects of the invention are as follows：It is allowed the liquid to after there is the spherical condition of lower negative pressure card by the way that tube of pressure-stabilizing is arranged
Into tube of pressure-stabilizing as buffering, measuring cylinder completion level gauging is entered back into after balancing pressure, solves the problems, such as negative-pressure card ball；Simultaneously
Gradient cooling can also be carried out to high-temp liquid, level gauging is more acurrate by the buffering of tube of pressure-stabilizing.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the Liquid level scale includes graduated scale and the magnetic turning plate that is coupled with the magnetic float, the graduated scale
It is fixed on the side of the magnetic turning plate, the other side of the magnetic turning plate is connect with the measuring cylinder lateral wall.
Advantageous effect using above-mentioned further scheme is simple in structure, can have been coupled by magnetic turning plate and magnetic float
At automatic instruction.
Further, the top of the tube of pressure-stabilizing is equipped with guided wave radar level transmitter.
Advantageous effect using above-mentioned further scheme is can to bundle two far transmission level meters and more than two alarm switches,
It measures relatively reliable.
Further, it is fixed with pipe flange at the top of the tube of pressure-stabilizing, lid flange is connected on the pipe flange and passes through institute
Lid flange is stated by the end sealing of the tube of pressure-stabilizing, the end of probe of the guided wave radar level transmitter is through the lid flange and institute
Pipe flange is stated to stretch into the tube of pressure-stabilizing.
Advantageous effect using above-mentioned further scheme be it is simple in structure, it is easy for installation.
Further, upper connecting leg and lower connecting leg, the top of the tube of pressure-stabilizing are equipped between the tube of pressure-stabilizing and the measuring cylinder
It is connected to by the upper connecting leg with the top of the measuring cylinder, the lower part of the lower part of the tube of pressure-stabilizing and the measuring cylinder passes through institute
State lower connecting leg connection.
Advantageous effect using above-mentioned further scheme is simple in structure.
Further, the bottom end of the voltage stabilizing tube inner chamber has up big and down small conical cavity, the bottom end of the conical cavity and institute
State lower connecting leg connection.
Advantageous effect using above-mentioned further scheme is to play the role of osculum decompression, when liquid enters surely from opening
When pressure cylinder inner cavity, allows the liquid to connecting leg under first being passed through again after buffering a period of time in tube of pressure-stabilizing and enter in measuring cylinder, gradient drop
The effect of temperature is more preferable, fully solves the problems, such as negative-pressure card ball.
Further, the measuring cylinder includes cylinder and lid, and the bottom end of the cylinder is connected to the sewage draining exit, it is described on
Connecting leg and the lower connecting leg are respectively communicated with the upper and lower part of the cylinder, and the top of the cylinder is sealed by the lid,
The magnetostrictive liquid level transducer is mounted on the side of the cylinder, the magnetostriction line of the magnetostrictive liquid level transducer
It arranges along the length direction of the cylinder and is coupled with the magnetic float.
Advantageous effect using above-mentioned further scheme be it is simple in structure, it is easy for installation.
Further, the sewage draining exit includes blow-off pipe and blowdown valve, the bottom end on the top of the blow-off pipe and the cylinder
Connection, the bottom end of the blow-off pipe and the blowdown valve flanged joint.
Advantageous effect using above-mentioned further scheme is that the liquid in liquid level gauge is discharged by blowdown valve.Further,
Two openings are respectively and fixedly provided with ring flange.
Advantageous effect using above-mentioned further scheme be by ring flange by liquid level gauge installation to the container, hold liquid into
Enter or export, connection structure is simple.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the structural schematic diagram of embodiment 2.
In attached drawing, parts list represented by the reference numerals are as follows：
1, magnetostrictive liquid level transducer, 2, lid, 3, blowdown valve, 4, Liquid level scale, 5, cylinder, 6, ring flange, 7, on
Connecting leg, 8, tube of pressure-stabilizing, 9, conical cavity, 10, lower connecting leg, 11, magnetic float, 12, guided wave radar level transmitter, 13, lid flange,
14, pipe flange, 15, blow-off pipe.
Specific implementation mode
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Embodiment 1
The negative pressure float level meter as shown in Figure 1, a kind of dual chamber is shut off, including magnetostrictive liquid level transducer 1, liquid level mark
Ruler 4, tube of pressure-stabilizing 8 and inner cavity are equipped with the measuring cylinder of magnetic float 11, and magnetostrictive liquid level transducer 1 is mounted in measuring cylinder, liquid
Position scale 4 is arranged along measuring cylinder length direction and mounted on measuring cylinder outside, the bottom of measuring cylinder is equipped with sewage draining exit, tube of pressure-stabilizing 8
Bottom end be connected to the lower part of measuring cylinder, the top of tube of pressure-stabilizing 8 is connected to the top of measuring cylinder, and tube of pressure-stabilizing 8 is far from measuring cylinder
The upper and lower part of side is equipped with opening.Upper connecting leg 7 and lower connecting leg 10 are equipped between tube of pressure-stabilizing 8 and measuring cylinder, tube of pressure-stabilizing 8
Top is connected to the top of measuring cylinder by upper connecting leg 7, and the lower part of tube of pressure-stabilizing 8 and the lower part of measuring cylinder are connected by lower connecting leg 10
It is logical.
Specifically, upper connecting leg 7 and lower connecting leg 10 are reducer pipe, reducing connects between tube of pressure-stabilizing 8 and measuring cylinder.
Two openings are respectively and fixedly provided with ring flange 6.Sewage draining exit includes that 15 and blowdown valve 3 are hung in blowdown, and 15 top is hung in blowdown
It is connected to the bottom end of measuring cylinder, 15 3 flanged joint of bottom end and blowdown valve is hung in blowdown.The bottom end of 8 inner cavity of tube of pressure-stabilizing has upper big
Under small conical cavity 9, the bottom end of conical cavity 9 is connected to lower connecting leg 10.
Liquid level scale 4 includes graduated scale and the magnetic turning plate coupled with magnetic float 11, and graduated scale is fixed on the one of magnetic turning plate
The other side of side, magnetic turning plate is connect with measuring cylinder lateral wall.
Measuring cylinder includes cylinder 5 and lid 2, and bottom end and the blowdown of cylinder 5 are hung 15 and be connected to, and upper connecting leg 7 and lower connecting leg 10 divide
Not Lian Tong cylinder 5 upper and lower part, the top of cylinder 5 sealed by lid 2, and magnetostrictive liquid level transducer 1 is mounted on cylinder
The side of body 5, the magnetostriction line of magnetostrictive liquid level transducer 1 along cylinder 5 length direction arrangement and with magnetic float 11
Coupling.
Tube of pressure-stabilizing 8 is connected by the flange of opening with container, and the liquid in container enters through flange port in tube of pressure-stabilizing 8
Chamber enters through lower connecting leg 10 and measures tube inner chamber, and the density of magnetic float 11 is less than the density of testing liquid, can swim in liquid
Surface is coupled by magnetic float 11 with magnetic turning plate, and magnetic turning plate indicates liquid level numerical value on the scale, measures in measuring cylinder
Liquid level.Magnetic float 11 is coupled with the magnetostriction line of magnetostrictive liquid level transducer 1 simultaneously, passes through magnetostrictive liquid level pick-up
Device 1 measures liquid level and by liquid level signal teletransmission, is connect with controller by magnetostrictive liquid level transducer 1, can complete to measure
Liquid level handles liquid level signal by controller and sends out the instructions such as command adapted thereto progress warning output.
Wherein, under some conditions, occur subnormal pressure even negative pressure condition, liquid in tube of pressure-stabilizing 8 and enter voltage stabilizing
Tube of pressure-stabilizing 8 is first filled primarily under low, suction function after in cylinder 8, after pressure recovery is normal in tube of pressure-stabilizing 8, then through lower connecting leg
10 measure liquid level into measuring cylinder.When fluid temperature is higher, liquid is introduced into tube of pressure-stabilizing 8, then flows into measuring cylinder, can
To realize gradient cooling, the liquid level of high-temp liquid is preferably measured.
Embodiment 2
As shown in Fig. 2, the present embodiment is with embodiment 1, difference lies in the top of tube of pressure-stabilizing 8 is equipped with guided wave radar level
Transmitter 12.
The top of tube of pressure-stabilizing 8 is fixed with pipe flange 14, and lid flange 13 is connected on pipe flange 14 and is incited somebody to action by lid flange 13
The end of probe of the end sealing of tube of pressure-stabilizing 8, guided wave radar level transmitter 12 stretches into tube of pressure-stabilizing 8 through lid flange 13 and pipe flange 14
It is interior.
Tube of pressure-stabilizing 8 is connected by the flange of opening with container, and the liquid in container enters through flange port in tube of pressure-stabilizing 8
Chamber is distributed with liquid in tube of pressure-stabilizing 8 and measuring cylinder, is become by magnetostrictive liquid level when the pressure in tube of pressure-stabilizing 8 is normal
It send device 1 and guided wave radar level transmitter 12 that can measure measuring cylinder and liquid level in tube of pressure-stabilizing 8 respectively and carries out teletransmission, pass through
It connects controller and respective handling is carried out to liquid level signal.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (9)
- The negative pressure float level meter 1. a kind of dual chamber is shut off, it is characterised in that：Including magnetostrictive liquid level transducer (1), liquid level Scale (4), tube of pressure-stabilizing (8) and inner cavity are equipped with the measuring cylinder of magnetic float (11), magnetostrictive liquid level transducer (1) installation In the measuring cylinder, the Liquid level scale (4) arranges along the measuring cylinder length direction and on the outside of the measuring cylinder, The bottom of the measuring cylinder is equipped with sewage draining exit, and the bottom end of the tube of pressure-stabilizing (8) is connected to the lower part of the measuring cylinder, the voltage stabilizing The top of cylinder (8) is connected to the top of the measuring cylinder, and the top of side of the tube of pressure-stabilizing (8) far from the measuring cylinder is under Portion is equipped with opening.
- 2. a kind of dual chamber is shut off negative pressure float level meter according to claim 1, it is characterised in that：The Liquid level scale (4) magnetic turning plate for including graduated scale and being coupled with the magnetic float (11), the graduated scale are fixed on the one of the magnetic turning plate Side, the other side of the magnetic turning plate are connect with the measuring cylinder lateral wall.
- 3. a kind of dual chamber is shut off negative pressure float level meter according to claim 1, it is characterised in that：The tube of pressure-stabilizing (8) Top guided wave radar level transmitter (12) is installed.
- 4. a kind of dual chamber is shut off negative pressure float level meter according to claim 3, it is characterised in that：The tube of pressure-stabilizing (8) Top be fixed with pipe flange (14), be connected on the pipe flange (14) lid flange (13) and by the lid flange (13) will The end sealing of the tube of pressure-stabilizing (8), the end of probe of the guided wave radar level transmitter (12) through the lid flange (13) and The pipe flange (14) is stretched into the tube of pressure-stabilizing (8).
- 5. being shut off negative pressure float level meter according to a kind of any one of the claim 1-4 dual chambers, it is characterised in that：It is described steady Upper connecting leg (7) and lower connecting leg (10), the top of the tube of pressure-stabilizing (8) and the survey are equipped between pressure cylinder (8) and the measuring cylinder The top of graduated cylinder is connected to by the upper connecting leg (7), and the lower part of the tube of pressure-stabilizing (8) and the lower part of the measuring cylinder are described in Lower connecting leg (10) connection.
- 6. a kind of dual chamber is shut off negative pressure float level meter according to claim 5, it is characterised in that：The tube of pressure-stabilizing (8) The bottom end of inner cavity has up big and down small conical cavity (9), and the bottom end of the conical cavity (9) is connected to the lower connecting leg (10).
- 7. a kind of dual chamber is shut off negative pressure float level meter according to claim 5, it is characterised in that：The measuring cylinder includes The bottom end of cylinder (5) and lid (2), the cylinder (5) is connected to the sewage draining exit, the upper connecting leg (7) and the lower connecting leg (10) it is respectively communicated with the upper and lower part of the cylinder (5), the top of the cylinder (5) is sealed by the lid (2), described Magnetostrictive liquid level transducer (1) is mounted on the side of the cylinder (5), the mangneto of the magnetostrictive liquid level transducer (1) Line stretcher is arranged along the length direction of the cylinder (5) and is coupled with the magnetic float (11).
- 8. a kind of dual chamber is shut off negative pressure float level meter according to claim 7, it is characterised in that：The sewage draining exit includes The top of blow-off pipe (15) and blowdown valve (3), the blow-off pipe (15) is connected to the bottom end of the cylinder (5), the blow-off pipe (15) bottom end and the blowdown valve (3) flanged joint.
- 9. being shut off negative pressure float level meter according to a kind of any one of the claim 1-4 dual chambers, it is characterised in that：Two institutes It states opening and is respectively and fixedly provided with ring flange (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810642690.9A CN108716942A (en) | 2018-06-21 | 2018-06-21 | A kind of dual chamber is shut off negative pressure float level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810642690.9A CN108716942A (en) | 2018-06-21 | 2018-06-21 | A kind of dual chamber is shut off negative pressure float level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108716942A true CN108716942A (en) | 2018-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810642690.9A Pending CN108716942A (en) | 2018-06-21 | 2018-06-21 | A kind of dual chamber is shut off negative pressure float level meter |
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| CN (1) | CN108716942A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320157A (en) * | 2019-08-03 | 2019-10-11 | 成都中核鑫星应用技术研究所 | A kind of on-line measurement device of crude oil water content |
| CN110346018A (en) * | 2019-08-05 | 2019-10-18 | 德州英卡纳仪表有限公司 | A kind of dedicated boiling protection liquid level emasuring device of high-pressure boiler |
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| CN208206251U (en) * | 2018-06-21 | 2018-12-07 | 迈格仪表(成都)有限公司 | A kind of dual chamber is shut off negative pressure float level meter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2789736Y (en) * | 2005-02-18 | 2006-06-21 | 杜虎荣 | Double-floating bowl |
| US20090031799A1 (en) * | 2007-07-31 | 2009-02-05 | Magnetrol International, Inc. | Float diagnostics for level measurement |
| CN202442757U (en) * | 2012-03-06 | 2012-09-19 | 长春锅炉仪表程控设备股份有限公司 | Self-compensating magnetic liquid-level meter in full temperature area |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320157A (en) * | 2019-08-03 | 2019-10-11 | 成都中核鑫星应用技术研究所 | A kind of on-line measurement device of crude oil water content |
| CN110346018A (en) * | 2019-08-05 | 2019-10-18 | 德州英卡纳仪表有限公司 | A kind of dedicated boiling protection liquid level emasuring device of high-pressure boiler |
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