CN204963890U - Liquid level of simultaneous measurement liquid and device of proportion - Google Patents
Liquid level of simultaneous measurement liquid and device of proportion Download PDFInfo
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- CN204963890U CN204963890U CN201390000926.XU CN201390000926U CN204963890U CN 204963890 U CN204963890 U CN 204963890U CN 201390000926 U CN201390000926 U CN 201390000926U CN 204963890 U CN204963890 U CN 204963890U
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/10—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials
- G01N9/12—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by observing the depth of immersion of the bodies, e.g. hydrometers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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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
- G01F23/56—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 using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements
- G01F23/62—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 using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements using magnetically actuated indicating means
Abstract
The utility model relates to a liquid level of simultaneous measurement liquid and device of proportion to visiting after needle shaft applys the pulse, utilizes magnetic induced shrinkage or elongation (Magnetostriction) to measure liquid level and proportion, a serial communication port, including liquid level measure with the float with than float for the remeasurement, liquid level measures and includes with the float: the cylinder main part, the center is formed with the perforating hole to its upper portion is formed with to the inboard supports the edge, go up the guide, install in support the edge, make it pastes tightly herein to visit needle shaft to prevent to produce surface tension, liquid level measures and uses the permanent magnet, and it pastes the fastening and schedules go up the guide, produce the elastic wave that is used for showing liquid level, and lower guide, insert the lower part of main part to prevent and than producing surface tension for the remeasurement between the float, and include than float for the remeasurement: the main part, and lower part drum that length little and external diameter little and length big upper portion drum integrated into one piece big by the external diameter, go up the guide, insert in the upper portion of upper portion drum makes it pastes tightly herein to visit needle shaft to prevent to produce surface tension, lower guide, insert in the inboard of lower part drum makes it pastes tightly herein to visit needle shaft to prevent to produce surface tension, and than magnet for the remeasurement, be fixed in the inside of lower part drum produces the elastic wave that is used for showing liquid level.
Description
Technical field
The utility model relates to a kind ofly measures the liquid level of liquid and the device of proportion by magnetostriction mode simultaneously, more specifically, relate to and a kind ofly measure the liquid level of liquid and the device of proportion simultaneously, it is made into external diameter size for being less than or equal to 50mm, the storage tank that peristome is little can be applicable to, and the surface tension minimized between float and probe shaft, thus improve precision.
Background technology
Generally speaking, the device measuring the storage tank internal liquid level height as storage tank in order to calculated flow rate is called storage tank liquid level gauge (TankLevelGauge).The method that liquid level measured by storage tank liquid level gauge (TLG) has multiple, wherein, utilizes the magnetostriction method of magnetostriction (Magnetostriction) phenomenon to be used widely.Magnetostriction (Magnetostriction) phenomenon refers to and applies that magnetic field molecular configurational is arranged to magnetic material material and length of material changes thus occur the phenomenon of elastic deformation.
Utilize the level gauging device of magnetostriction (Magnetostriction), generally permanent magnet is configured in swimming in float (Floater) inside on the water surface and producing axial magnetic field on magnetostriction line, pulse (Pulse) is applied to magnetostriction line, and produces the magnetic field of circumferencial direction.Now, occur field distortion (Distortion) phenomenon because of the synthesis between axial magnetic field and circumferencial direction magnetic field, this is a kind of mechanical vibration, and therefore elastic wave (ultrasound wave) is propagated along magnetostriction line.Further, storage tank liquid level gauge calculates the position (namely, liquid level) of permanent magnet by the time of measuring from applying pulse (Pulse) to magnetostriction line to reception ultrasound wave.
On the other hand, as the technology measuring liquid level and proportion at fluid reservoir simultaneously, there will be a known " liquid level and the density measuring equipment " disclosed in patent application publication number 10-2008-0090539.Described liquid level and density measuring equipment, as shown in Figure 1, manufactured by liquid density measurement float 10 and have the cylindrical of cavity (cavity), level measuring float 20 to be inserted in cavity and and to insert the structure of probe shaft (30).
But, the density measure float of this structure, as shown in Fig. 2 (a), in order to eliminate liquid level gauging float close to each other with specific gravity test float or contact time the surface tension of liquid that occurs and friction factor, make liquid level gauging float and specific gravity test float is non-touching needs to keep enough spacing " d1 ", and enough lengthen the region " d2 " contacted with probe shaft 30 in the bottom of specific gravity test float.If the spacing of d1 is narrow or the length of d2 is short, then in the liquid of dynamic mobile, as shown in Fig. 2 (b), level gauging float 20 and specific gravity test float 20 contact with each other and are subject to the impact of surface tension of liquid and friction factor, and measuring error appears in result.
Therefore, in order to eliminate level gauging float 20 close to each other with specific gravity test float 10 or contact time the surface tension of liquid that occurs and friction factor, make level gauging float 20 and specific gravity test float 10 non-touching fully floating, but there is the problem that external diameter cannot be manufactured within 50mm in the device disclosed in patent application publication number 10-2008-0090539.Namely, the pipeline specifications of the peristome that the manhole place that the top of the fluid reservoir used in refuelling station etc. is positioned at offers, be 100A (internal diameter: 105mm) in the U.S. and European countries' pipeline specifications by convention, but be 50A (internal diameter: 54mm) or pipeline specifications in oriental countries pipeline specifications such as Korea S be 40A (internal diameter: 42mm), therefore, when using in Korea S or oriental storage tank, there is the problem needing the engineering of carrying out enlarged openings portion.
In addition, be enclosed within the measurement float 40 on probe shaft 30, as shown in Figure 3, due to probe shaft 30 and float 40 near to or in contact with, so during surface tension effects, although water level decreasing, the float swum on liquid surface can not decline the degree of water level decreasing, thus there is the problem occurring measuring error.With reference to Fig. 3, water level is the h1 float 40 swum on liquid when being highly d1, although water level decreasing is to h2, float 40 can not decline the degree of water level decreasing, occurs that d2 is greater than the situation of d1, that is surface tension effects " d2-d1 " degree.
Utility model content
The problem that utility model will solve
The utility model proposes to solve described problem, the purpose of this utility model is that provide a kind of measures the liquid level of liquid and the device of proportion simultaneously, the size of external diameter is made into and is less than or equal to 50mm, the little storage tank of peristome can be applicable to and without the need to additional work, and the surface tension between float and probe shaft can be minimized.
In addition, another object of the present utility model is that provide a kind of measures the liquid level of liquid and the device of proportion simultaneously, the specific gravity test float of core form will be made into, make the thinner thickness from external diameter to internal diameter, thus the proportion sensitive of liquid is reacted, and level gauging float is made thicker than specific gravity test float, thus it is insensitive that its proportion to liquid is changed, make them on susceptibility, there is the difference of more than three times, thus improve precision.
For the method for dealing with problems
In order to achieve the above object, liquid level of the present utility model and specific weight measurer, after applying pulse, utilize magnetostriction to measure liquid level and proportion, it is characterized in that the probe shaft running through level gauging float and specific gravity test float,
Described level gauging float comprises: cylindrical-shaped main body, has wherein been formed centrally through hole, and top is formed with edge to the inside; Upper guide, it is fixed on the top of described cylindrical-shaped main body, produces surface tension for preventing between described level gauging float and described probe shaft; Level gauging permanent magnet, it is fixed on described level gauging float, for showing liquid level; And lower guide, it is fixed on the bottom of described cylindrical-shaped main body, produces surface tension for preventing between described level gauging float and described specific gravity test float,
Described specific gravity test float comprises: cylinder-shaped body, its by top cylinder and bottom cylinder one-body molded, but the external diameter of described bottom cylinder is greater than the external diameter of described top cylinder, the length of described top cylinder is greater than the length of described bottom cylinder; Upper guide, it is fixed on the top of described cylinder-shaped body, produces surface tension for preventing between described specific gravity test float and described probe shaft; Lower guide, it is fixed on the bottom of described cylinder-shaped body, produces surface tension for preventing between described specific gravity test float and described probe shaft; And specific gravity test magnet, it is fixed on described specific gravity test float, for display position,
The top cylinder with the cylinder-shaped body of described specific gravity test float is inserted into the integrated structure of the cylindrical-shaped main body of described level gauging float.
Described specific gravity test float can also comprise counterweight, described counterweight is attached on described cylinder-shaped body, for adjusting the buoyancy of described specific gravity test float, and, the upper guide of described level gauging float or described specific gravity test float and lower guide are the copper coin shapes of aluminium, the guide internal production of copper coin shape is become clathrate, makes the area minimization that this guide contacts with probe shaft.
In order to achieve the above object, the liquid level that another embodiment of the present utility model relates to and specific weight measurer, after applying pulse, utilize magnetostriction to measure liquid level and proportion to the probe shaft running through level gauging float and specific gravity test float, it is characterized in that
Described level gauging float comprises: cylindrical-shaped main body, has wherein been formed centrally through hole, and its top is formed with edge to the inside; Upper guide, it is fixed on the top of described cylindrical-shaped main body, produces surface tension for preventing between described level gauging float and described probe shaft; Level gauging permanent magnet, it is fixed on described level gauging float, for showing liquid level; And lower guide, it is fixed on the bottom of described cylindrical-shaped main body, produces surface tension for preventing between described level gauging float and described specific gravity test float,
Described specific gravity test float comprises: cylinder-shaped body, its by top cylinder and bottom cylinder one-body molded, but the external diameter of described bottom cylinder is greater than the external diameter of described top cylinder, the length of described top cylinder is greater than the length of described bottom cylinder; Upper guide, it is fixed on the top of described cylinder-shaped body, produces surface tension for preventing between described specific gravity test float and described probe shaft; Lower guide, it is fixed on the bottom of described cylinder-shaped body, produces surface tension for preventing between described specific gravity test float and described probe shaft; And specific gravity test magnet, it is fixed on described specific gravity test float, for display position,
Thick more than three times of the thickness of specific gravity test float described in the Thickness Ratio of described level gauging float.
The effect of utility model
Generally, liquid level and specific weight measurer are inserted into be mounted to be through to described tank being positioned at opening that the manhole on fluid reservoir top is offered inner, and external diameter can be designed to be less than or equal to 50mm by unique structure by the device that the utility model relates to, therefore, time on the peristome being arranged at present conventional pipeline specifications 50A (internal diameter: 54mm), engineering without the need to carrying out enlarged openings portion in addition just can easily be installed, thus can reduce erected cost.
In addition, general specific weight measurer, if the precision of physical phenomenon is lower, the tipped of electronic installation is needed in order to improve precision, thus there is the problem of manufacturing cost rising, but, the utility model utilizes and changes insensitive level gauging float and the specific gravity test float to proportion sensitive to the proportion of liquid, poor to expand according to the relative distance of proportion change, thus improve precision with physical phenomenon, precision can be improved with low cost while therefore reducing manufacturing cost.Such as, the external diameter of specific gravity test float is in the past 95mm, and internal diameter is 82mm, and the thickness of external diameter-internal diameter is 6.5mm, and the external diameter of specific gravity test float of the present utility model is 29mm, and internal diameter is 23mm, and the thickness of external diameter-internal diameter is 3mm.Therefore, the area of section of specific gravity test float is in the past 1806m
2left and right, and the area of section of specific gravity test float of the present utility model is 245 ㎡, so the precision being shown as physical phenomenon can be improved about 730%.
And, the liquid level that the utility model relates to and specific weight measurer, add the guide of aluminium at the internal run-through hole place of level gauging float and specific gravity test float, make to minimize with the contact area of probe shaft, thus the measuring error that surface tension causes can be prevented.
Accompanying drawing explanation
Fig. 1 be illustrate in the past while measure the skeleton diagram of the device of liquid level and proportion;
Fig. 2 be illustrate shown in Fig. 1 while measure the schematic diagram of the problem of the device of liquid level and proportion;
Fig. 3 be for illustration of probe shaft and measurement float near to or in contact with time surface tension effects the schematic diagram of problem;
Fig. 4 illustrates the sectional view measuring the device of liquid level and proportion while the utility model relates to;
Fig. 5 is the schematic diagram of the level gauging float shown in Fig. 4;
Fig. 6 is the schematic diagram of the specific gravity test float shown in Fig. 4;
Fig. 7 be the proportion of the liquid level that relates to of the utility model and specific weight measurer constant time the schematic diagram of action case;
Fig. 8 is the schematic diagram of the action case of the proportion of the liquid level that relates to of the utility model and specific weight measurer when rising;
Fig. 9 is the schematic diagram of the action case of the proportion of the liquid level that relates to of the utility model and specific weight measurer when declining;
Figure 10 is the schematic diagram of the effect of the guide related to for illustration of the utility model.
Embodiment
By the technical task that the utility model reaches with enforcement the utility model, become clearer by preferred embodiments of the present utility model described below.But embodiment is only and the utility model is described and exemplifies below, is not intended to limit scope of the present utility model.
First, in order to measure liquid level and proportion according to the utility model simultaneously, level gauging float is reacted proportion change is insensitive, and specific gravity test float is reacted proportion sensitive, the larger precision of difference of the susceptibility of level gauging float and the susceptibility of specific gravity test float is higher.In addition, considering that the peristome internal diameter major part of the storage tank arranged in Korea S or oriental countries is 54mm, also can be applicable to these storage tank to not carry out other extension project, within needing that the external diameter of measurement mechanism is limited to 50mm.
The utility model is for meeting these requirement conditions, as shown in Figure 4, make device have specific gravity test float 120 and be inserted into integrated structure on the downside of the relatively large level gauging float 110 of internal diameter, and make the thickness T1 of level gauging float 110 different from the thickness T2 of specific gravity test float 120, make to there are differences on susceptibility.That is, the structure of device that relates to of the utility model, cylindrical shape level gauging float 110 is positioned at top, and the cylindrical specific gravity test float 120 that inside is formed with through hole is positioned at bottom.The internal diameter of cylindrical specific gravity test float 120 is greater than the external diameter of probe shaft 104, there is the structure that probe shaft 104 runs through, the internal diameter of cylindrical shape level gauging float 110 is greater than the upside external diameter of specific gravity test float 120, has the structure on the top of top penetration probe axle 104 and bottom parcel specific gravity test float 120.
In embodiment of the present utility model, the rate of specific gravity of the liquid that measure is mainly 0.65 to 1.0, and general provision water is 1.0, and light oil is 0.82, and gasoline is 0.72, and nucleic acid is 0.66, and the rate of specific gravity of measurement float is 0.55.Therefore, level gauging float 110 and specific gravity test float 120 all easily float on the liquid that will measure.
The sensitivity of picnometer, the thickness T ((external diameter-internal diameter)/2) of specific gravity test float is more little more responsive, and thickness T is more large more insensitive.In embodiment of the present utility model, in order to improve the precision of picnometer, the thickness T1 of level gauging float 110 ((external diameter-internal diameter)/2) is made to be thicker than the upside thickness T2 of specific gravity test float 120, make the proportion sensitive ground action of specific gravity test float 120 pairs of liquid, and the proportion of level gauging float 110 pairs of liquid change insensitive ground action.
More specifically, in embodiment of the present utility model, the thickness T1 being designed to level gauging float 110 is 8mm, and the upside thickness T2 of specific gravity test float 120 is 3mm.If level gauging float 110 is identical with the rate of specific gravity of specific gravity test float 120 (such as, 0.55) time, more about than the volume of specific gravity test float 120 three times of the unit area of level gauging float 110, therefore, the remolding sensitivity specific gravity test float 120 of level gauging float 110 is low about three times.Such as, in normal state the proportion of liquid decline 0.1 time, level gauging float 110 declines about 7mm, the about 21mm but specific gravity test float 120 declines.
Further, in the utility model, specific gravity test scope can be adjusted by counterweight 129, but in embodiment of the present utility model, type value centered by 0.7,0.8 and 0.9 of specific gravity test float 120 is distinguished.Preferably, setting measurement lower limit is " central value-0.05 ", and higher limit is " central value+0.1 ".Such as, steam oil ratio (SOR) weight values is 0.72, therefore, when measuring the proportion of gasoline, specific gravity test float 120 can adopt 0.7 centered by value and measuring.
In addition, the utility model is the problem that the existing surface tension of solution causes, and is minimized the surface tension of specific gravity test float 120 and level gauging float 110 by method below.
Specific gravity test float 120 is made up of bottom cylinder (122a of accompanying drawing 6) and top cylinder (122b of accompanying drawing 6) one and inside has the cylindrical formation of through hole, there is the structure that probe shaft 104 runs through cylindrical center, be attached with copper coin shape guide 126,128 on the top of cylinder-shaped body and bottom.The material of guide 126,128 is aluminium, and the internal diameter of guide is greater than the external diameter of probe shaft 104 and is less than the internal diameter of specific gravity test float 120, and thickness is 1mm.In addition, the internal production of copper coin shape guide 126,128 is become clathrate, thus make the area minimization that guide 126,128 contacts with probe shaft 104.The specific gravity test float 120 being attached with guide 126,128 according to the utility model makes probe shaft 104 freely move up and down, and is subject to the capillary impact that acts between specific gravity test float 120 and probe shaft 104 hardly.Namely, there is in inside the cylindrical specific gravity test float 120 of through hole, the length of girth is at least 100mm, but specific gravity test float does not have the situation of guide, as shown in Figure 10 (a), the length 100mm of cylinder-shaped body 122 all contacts with probe shaft 104, result is subject to the impact of surface tension and friction factor deeply, but be attached with guide 126 according to the utility model specific gravity test float, the situation of 128, as shown in Figure 10 (b), thickness is only had to be the aluminium guide 126 of two copper coin shapes of 1mm, 128 contact with probe shaft 104, therefore capillary impact is subject to hardly.In addition, because the material of specific gravity test float 120 is NBR, on manufacturing characteristics, the friction factor on specific gravity test float surface is larger than aluminium.But, the device that the utility model relates to, although specific gravity test float 120 is made by NBR (NitrileButadieneRubber: nitrile butadiene rubber) material, but the part contacted with probe shaft 104 is the guide 126,128 of aluminium, therefore also can reduce the impact of friction factor to greatest extent.
Level gauging float 110 is also configured to cylindrical shape, there is probe shaft 104 and run through columnar central upper portion and specific gravity test float 120 runs through the structure of lower central, but the top of level gauging float 110 is attached with copper coin shape guide 116 according to the utility model, thus solve the capillary problem acted between level gauging float 110 top and probe shaft 104.
Fig. 4 illustrates the sectional view measuring the device of liquid level and proportion while the utility model relates to, and Fig. 5 is the schematic diagram of the level gauging float shown in Fig. 4, and Fig. 6 is the schematic diagram of the specific gravity test float shown in Fig. 4.
As shown in Figures 4 to 6, the liquid level that the utility model relates to and specific weight measurer 100 comprise: level gauging float 110, and the liquid level along measuring object liquid floats; Specific gravity test float 120, according to the change in depth that the proportion of measuring object liquid floats from liquid level; And probe shaft 104, run through level gauging float 110 and specific gravity test float 120, if when applying pulse from measurement main body, detect the floating position of level gauging float 110 and the floating position of specific gravity test float 120 by magnetostriction (Magnetostriction).
With reference to Fig. 4, probe shaft 104 runs through level gauging float 110 with specific gravity test float 120 propagates the pulse applied from the measurement main body that head capsule 102 is interior or other, flexible elastic wave is produced by level gauging permanent magnet 114 or specific gravity test permanent magnet 124, the ultrasonic wave reception unit then measuring main body receives elastic wave (ultrasound wave) from probe shaft 104, and locate the position of level gauging permanent magnet 114 and specific gravity test permanent magnet 124, and calculate liquid level and proportion.For this reason, the magnetostriction line (MagnetrostrictiveWire) as electric device is built-in with at probe shaft 104.
As shown in Figure 5, level gauging float 110 comprises: cylindrical-shaped main body 112, has wherein been formed centrally through hole, and its top is formed with edge 112a to the inside; Upper guide 116, it is installed on described edge 112a, and probe shaft 104 is closely attached on this, for preventing surface tension; Level gauging permanent magnet 114, it is adjacent to and is fixed on guide 116, produces the elastic wave for showing liquid level; And lower guide 118, it is inserted into the bottom of main body, produces surface tension for preventing between specific gravity test float 120.
With reference to the stereographic map that Fig. 5, Fig. 5 (a) are level gauging float, Fig. 5 (b) is sectional view, and Fig. 5 (c) is the schematic diagram of upper guide, and Fig. 5 (d) is the schematic diagram of lower guide.
In embodiment of the present utility model, the NBR material that cylindrical-shaped main body 112 is 0.55 by buoyancy is formed, and its internal diameter is 34 Φ, and external diameter is 50 Φ, and thickness T is 8mm.The height of main body is 110mm, and wherein, magnet areas is 12mm.Upper guide 116 is made up of aluminium, and thickness is 1mm and internal diameter is the copper coin shape of 20 Φ, is formed with the hole run through by probe shaft 104 therein, and in inner side with cruciform arrangement four grooves.Lower guide 118 is that thickness is 1mm and internal diameter is the copper coin shape of 30 Φ, is formed with the hole run through by specific gravity test float 120 therein, and is formed with multiple groove in inner side.
As shown in Figure 6, specific gravity test float 120 comprises: cylinder-shaped body 122, and it is large by external diameter and bottom cylinder 122a that length is little and external diameter is little and length is large top cylinder 122b is one-body molded; Upper guide 126, it is inserted into the top of top cylinder 122b, and probe shaft 104 is closely attached on this, for preventing surface tension; Lower guide 128, it is inserted into the inner side of bottom cylinder 122a, and probe shaft 104 is closely attached on this, for preventing surface tension; Specific gravity test magnet 124, it is closely attached on lower guide 128, and is fixed on the inside of bottom cylinder 122a, produces the elastic wave being used for display position; And counterweight 129, it is inserted in the boundary surface of bottom cylinder 122a and top cylinder 122b, for adjusting buoyancy.
With reference to the stereographic map that Fig. 6, Fig. 6 (a) are specific gravity test float, Fig. 6 (b) is sectional view, and Fig. 6 (c) is the schematic diagram of upper guide, and Fig. 6 (d) is the schematic diagram of lower guide.
In embodiment of the present utility model, main body 122 comprises bottom cylinder 122a and top cylinder 122b, the NBR material being 0.55 by buoyancy is formed, the bearing edge for guide 128 under supporting is formed in the inner side of bottom cylinder 122a, the internal diameter of bottom cylinder 122a is 31 Φ, 28 Φ, external diameter is 48 Φ, and length is 25mm.Top cylinder 122b internal diameter is 23 Φ, and external diameter is 29 Φ, and thickness is 3mm, and length is 95mm.The washer-shaped of upper guide 126 to be internal diameters be 20 Φ, is upwards formed with projection and inside is formed with the hole run through by probe shaft 104, has four grooves in inner side with cruciform arrangement.Lower guide 128 is that thickness is 1mm and internal diameter is the washer-shaped of 20 Φ, is formed with the hole run through by probe shaft 104, and has four grooves in inner side with cruciform arrangement in inside.
Next, the action of the liquid level that the utility model that the following describes formation as mentioned above relates to and specific weight measurer.
First, the liquid level that the utility model relates to and specific weight measurer measure liquid level and the proportion height of liquid by magnetostriction method, liquid level is calculated the tank farm stock of storage tank inside with the volume computing to storage tank volume, and the rate of specific gravity that proportion height substitutes into as liquid in conversion table is calculated.
Fig. 7 be the proportion of the liquid level that relates to of the utility model and specific weight measurer unchanged time the schematic diagram of action case.
With reference to Fig. 7, when the proportion of liquids in general is constant, even if the liquid level of liquid changes, level gauging float 110 and specific gravity test float 120 are also floating unchangeably on liquid level.Namely, if proportion does not change, even if the distance " a1 " from head capsule 102 to the permanent magnet 114 being attached to level gauging float 110 changes, the spacing " d=a2-a1 " between the permanent magnet 114 of level gauging float and the permanent magnet 124 of specific gravity test float also can not change.
In addition, relevant liquid level, can by measuring the liquid level measuring liquid from head capsule 102 to the distance " a1 " of the permanent magnet 114 being attached to level gauging float 110, proportion elevation carrection can by measurement level gauging value " a1 " and the proportion height " d=a2-a1 " calculating liquid from head capsule 102 to the distance " a2 " of the permanent magnet 124 being attached to specific gravity test float 120.That is, the proportion height " d " of liquid is the spacing between the permanent magnet 114 of level gauging float 110 and the permanent magnet 124 of specific gravity test float 120.
Fig. 8 is the schematic diagram of the action case of the proportion of the liquid level that relates to of the utility model and specific weight measurer when rising, Fig. 8 (a) represent proportion rise before normal condition, and Fig. 8 (b) represent proportion rise after state.
With reference to Fig. 8, the proportion of liquid is than (such as, when changing to 0.8 from 0.7) when normally rising, and level gauging float 110 and specific gravity test float 120 also rise than time normal.Such as, the thickness T of level gauging float 110 is 8mm, when the thickness T of specific gravity test float is 3mm, if the rate of specific gravity of level gauging float 110 and specific gravity test float 120 is set as that equivalence (such as, 0.55), then the unit area of specific gravity test float 120 less than the volume of level gauging float 110 about 1/3 is accompanied, and therefore specific gravity test float 120 is accompanied than level gauging float rising more than 110 about 3.Thus, the distance between the permanent magnet 114 of level gauging float and the permanent magnet 124 of specific gravity test float shortens to b3 from a3, and amplitude of variation shortens " d=a3-b3 ".
About liquid level, can by measuring the liquid level measuring liquid from head capsule 102 to the distance of the permanent magnet 114 being attached to level gauging float, liquid level before the proportion change of liquid is " a1 ", and the liquid level after the proportion change of liquid is " b1 ".
About proportion height, can by measurement level gauging value and the proportion height measuring liquid from head capsule 102 to the distance of the permanent magnet 124 being attached to specific gravity test float, proportion height before the proportion change of liquid is " a3=a2-a1 ", and the proportion height after change is " b3=b2-b1 ".Proportion height shortens to b3 from a3, and amplitude of variation shortens " d=a3-b3 ".
Fig. 9 is the schematic diagram of the action case of the proportion of the liquid level that relates to of the utility model and specific weight measurer when declining, Fig. 9 (a) represent proportion decline before normal condition, and Fig. 9 (b) represent proportion decline after state.
With reference to Fig. 9, the proportion of liquid is than (such as, when changing to 0.7 from 0.8) when normally declining, and level gauging float 110 and specific gravity test float 120 are also than normal decline.The thickness T of level gauging float 110 is 8mm, the thickness T of specific gravity test float 120 is 3mm, and when the rate of specific gravity of level gauging float 110 and specific gravity test float 120 is set as equivalence (such as 0.55), the unit area less than the volume of level gauging float 110 about 1/3 of specific gravity test float 120 is accompanied, and therefore specific gravity test float 120 is accompanied than level gauging float decline more than 110 about 3.Thus, the distance between the permanent magnet 114 of level gauging float 110 and the permanent magnet 124 of specific gravity test float 120 is elongated to " b3 " from " a3 ", amplitude of variation elongated " d=b3-a3 ".
About liquid level, can by measuring the liquid level measuring liquid from head capsule (102) to the distance of the permanent magnet 114 being attached to level gauging float 110, liquid level before the proportion change of liquid is " a1 ", and the liquid level after the proportion change of liquid is " b1 ".
About proportion height, can by measurement level gauging value and the proportion height measuring liquid from head capsule 102 to the distance of the permanent magnet 124 being attached to specific gravity test float 120, proportion height before the proportion change of liquid is " a3=a2-a1 ", and the proportion height after change is " b3=b2-b1 ".Proportion height is elongated to b3 from a3, amplitude of variation elongated " d=b3-a3 ".
Above, the embodiment shown in reference is illustrated the utility model, but person of an ordinary skill in the technical field should be appreciated that other embodiments can carrying out various distortion and equalization from above-described embodiment.
Claims (5)
1. measure the liquid level of liquid and a device for proportion simultaneously, it is characterized in that,
Described level gauging float comprises:
Cylindrical-shaped main body, has wherein been formed centrally through hole, and its top is formed with edge to the inside;
Upper guide, it is fixed on the top of described cylindrical-shaped main body, produces surface tension for preventing between described level gauging float and described probe shaft;
Level gauging permanent magnet, it is fixed on described level gauging float, for showing liquid level; And
Lower guide, it is fixed on the bottom of described cylindrical-shaped main body, produces surface tension for preventing between described level gauging float and described specific gravity test float,
Described specific gravity test float comprises:
Cylinder-shaped body, its by top cylinder and bottom cylinder one-body molded, the external diameter of described bottom cylinder is greater than the external diameter of described top cylinder, and the length of described top cylinder is greater than the length of described bottom cylinder;
Upper guide, it is fixed on the top of described cylinder-shaped body, produces surface tension for preventing between described specific gravity test float and described probe shaft;
Lower guide, it is fixed on the bottom of described cylinder-shaped body, produces surface tension for preventing between described specific gravity test float and described probe shaft; And
Specific gravity test magnet, it is fixed on described specific gravity test float, for display position,
The top cylinder with the cylinder-shaped body of described specific gravity test float is inserted into the integrated structure of the cylindrical-shaped main body of described level gauging float.
2. according to claim 1ly measure the liquid level of liquid and the device of proportion, it is characterized in that, described specific gravity test float also comprises simultaneously:
Counterweight, it is attached on described cylinder-shaped body, for adjusting the buoyancy of described specific gravity test float.
3. according to claim 2ly measure the liquid level of liquid and the device of proportion simultaneously, it is characterized in that,
The upper guide of described level gauging float or described specific gravity test float and lower guide are the copper coin shapes of aluminium, the guide internal production of copper coin shape is become clathrate, makes the area minimization that this guide contacts with probe shaft.
4. according to claim 1ly measure the liquid level of liquid and the device of proportion simultaneously, it is characterized in that,
The upper guide of described level gauging float or described specific gravity test float and lower guide are the copper coin shapes of aluminium, the guide internal production of copper coin shape is become clathrate, makes the area minimization that this guide contacts with probe shaft.
5. measure the liquid level of liquid and a device for proportion simultaneously, it is characterized in that,
Described level gauging float comprises:
Cylindrical-shaped main body, has wherein been formed centrally through hole, and its top is formed with edge to the inside;
Upper guide, it is fixed on the top of described cylindrical-shaped main body, produces surface tension for preventing between described level gauging float and described probe shaft;
Level gauging permanent magnet, it is fixed on described level gauging float, for showing liquid level; And
Lower guide, it is fixed on the bottom of described cylindrical-shaped main body, produces surface tension for preventing between described level gauging float and described specific gravity test float,
Described specific gravity test float comprises:
Cylinder-shaped body, its by top cylinder and bottom cylinder one-body molded, the external diameter of described bottom cylinder is greater than the external diameter of described top cylinder, and the length of described top cylinder is greater than the length of described bottom cylinder;
Upper guide, it is fixed on the top of described cylinder-shaped body, produces surface tension for preventing between described specific gravity test float and described probe shaft;
Lower guide, it is fixed on the bottom of described cylinder-shaped body, produces surface tension for preventing between described specific gravity test float and described probe shaft; And
Specific gravity test magnet, it is fixed on described specific gravity test float, for display position,
Thick more than three times of the thickness of specific gravity test float described in the Thickness Ratio of described level gauging float.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2012-0132895 | 2012-11-22 | ||
| KR1020120132895A KR101245268B1 (en) | 2012-11-22 | 2012-11-22 | Liquid level and density measurement apparatus |
| PCT/KR2013/002457 WO2014081087A1 (en) | 2012-11-22 | 2013-03-25 | Device for simultaneously measuring surface height and specific gravity of liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204963890U true CN204963890U (en) | 2016-01-13 |
Family
ID=48182192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201390000926.XU Expired - Fee Related CN204963890U (en) | 2012-11-22 | 2013-03-25 | Liquid level of simultaneous measurement liquid and device of proportion |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6013618B2 (en) |
| KR (1) | KR101245268B1 (en) |
| CN (1) | CN204963890U (en) |
| WO (1) | WO2014081087A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928825A (en) * | 2016-04-18 | 2016-09-07 | 张立臣 | Portable instrument for detecting liquid level and density of medium |
| CN113640176A (en) * | 2021-07-30 | 2021-11-12 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Lime milk specific gravity measuring method, device and system and computer readable storage medium |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101877889B1 (en) * | 2016-11-07 | 2018-07-12 | 한국전력기술 주식회사 | Indication type level indicator using total reflection prism |
| KR102312175B1 (en) | 2020-03-31 | 2021-10-13 | 주식회사 플렉스로직 | Specific gravity automatic meter |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0673087B2 (en) * | 1984-07-23 | 1994-09-14 | ホシザキ電機株式会社 | Liquid level controller |
| US4939457A (en) * | 1989-05-03 | 1990-07-03 | Mts Systems Corporation | Flexible tube sonic waveguide for determining liquid level |
| JP3307610B2 (en) * | 1999-06-23 | 2002-07-24 | 株式会社タツノ・メカトロニクス | Tank liquid level measurement device |
| ATE471500T1 (en) | 2006-01-30 | 2010-07-15 | Franklin Fueling Systems Inc | LIQUID LEVEL AND DENSITY MEASUREMENT DEVICE |
| US8539828B2 (en) * | 2009-01-06 | 2013-09-24 | Veeder-Root Company | Magnetostrictive liquid density detector |
| JP5257625B2 (en) | 2010-06-16 | 2013-08-07 | 株式会社タツノ | Liquid level measuring device with density measuring function |
| JP5618187B2 (en) * | 2010-06-16 | 2014-11-05 | 株式会社タツノ | Liquid level measuring device with density measuring function |
| KR101141961B1 (en) * | 2012-01-12 | 2012-05-04 | (주) 다인레벨 | Liquid level and density measurement apparatus |
-
2012
- 2012-11-22 KR KR1020120132895A patent/KR101245268B1/en active IP Right Grant
-
2013
- 2013-03-25 JP JP2015543948A patent/JP6013618B2/en not_active Expired - Fee Related
- 2013-03-25 WO PCT/KR2013/002457 patent/WO2014081087A1/en active Application Filing
- 2013-03-25 CN CN201390000926.XU patent/CN204963890U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928825A (en) * | 2016-04-18 | 2016-09-07 | 张立臣 | Portable instrument for detecting liquid level and density of medium |
| CN105928825B (en) * | 2016-04-18 | 2019-03-01 | 张立臣 | A kind of portable medium liquid level density tester |
| CN113640176A (en) * | 2021-07-30 | 2021-11-12 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Lime milk specific gravity measuring method, device and system and computer readable storage medium |
| CN113640176B (en) * | 2021-07-30 | 2024-02-20 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Lime milk specific gravity measuring method, device, system and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016503505A (en) | 2016-02-04 |
| WO2014081087A1 (en) | 2014-05-30 |
| JP6013618B2 (en) | 2016-10-25 |
| KR101245268B1 (en) | 2013-03-19 |
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