CN206740210U - One kind floating evaporation from water surface station liquid level device for accurately measuring - Google Patents
One kind floating evaporation from water surface station liquid level device for accurately measuring Download PDFInfo
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- CN206740210U CN206740210U CN201720540068.8U CN201720540068U CN206740210U CN 206740210 U CN206740210 U CN 206740210U CN 201720540068 U CN201720540068 U CN 201720540068U CN 206740210 U CN206740210 U CN 206740210U
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- measuring cylinder
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Abstract
The utility model provides a kind of floating evaporation from water surface station liquid level device for accurately measuring,Including installing instruction case and evaporator above deck,Suspension is provided with barrel cover in the instruction case,Measuring cylinder is installed in barrel cover,The magnetic ball float of magnetostriction type sensor is enclosed on inductive axis to change along inductive axis with the water surface and moved up and down,The signal processing unit of magnetostriction type sensor is arranged on outside measuring cylinder,Communicating pipe,Connect interface," L " shape connector and connecting tube, which are engaged, realizes that measuring cylinder mutually circulates with the aqueous phase in evaporator,The end of " L " shape connector is additionally provided with limitation measuring cylinder and evaporator water convection velocity current limliting diaphragm,This measurement apparatus technology is realized easy,Measurement accuracy is high,Measurement error can be controlled within 0.2mm,Solves floating evaporation station liquid level accurate measuring technique problem well,Monitoring effect is good,Evaporation information gathering automation is set really to become a reality.
Description
Technical field
A kind of floating evaporation from water surface station liquid level emasuring device is the utility model is related to, is specifically a kind of floating evaporation from water surface station
Liquid level device for accurately measuring.
Background technology
Evaporation is one of important channel of water circulation, accurate measurements evaporation capacity, to seeking regional water circulation law, instructs water
MRP utilizes, and service industrial and agricultural production is significant.Because evaporation discharge observation requirement is accurate to 0.1mm, by metering system
Method and sensor accuracy class limitation, water surface evaporation automatic data collection is always industry problems.Float evaporation from water surface station wind-engaging
Unrestrained fluctuating factor influences, and evaporator level monitoring is particularly difficult, and the station liquid level observing of floating evaporation at present is based on artificial, automatic prison
Survey is still in the exploratory stage.The problem of conventional liquid level high-acruracy survey is present, at present resolving power reach 0.1mm liquid level gauge it is main
There are ultrasonic liquid level meter, pressure resistance type liquid level gauge, angular coding float type level gauge, magnetostriction liquidometer etc., but practical function is all
Not ideal enough, measurement error is larger, and subject matter is as follows：
Ultrasonic liquid level meter
Because the velocity of sound is relevant with temperature, but water body or air ambient temperature distributing measuring difficulty are surveyed, therefore the velocity of sound
Compensation is inaccurate, causes measured result error very big.
Pressure resistance type liquid level gauge
Because the drift of piezoresistance liquid level meter own temperature is big, when tested water body is rocked by Lidar Equation, by the dynamic pressure shadow of water
Ring, cause measured result error very big.
Angular coding float type level gauge
Need to overcome starting torque because the measurement wheel of encoder rotates, suffering from this float movement can not completely and liquid level
Height change is synchronous, and float rocks acutely under floating evaporating field, Lidar Equation, causes measured result error very big.
Utility model content
Utility model provides a kind of floating evaporation from water surface station liquid level device for accurately measuring, this dress according to the deficiencies in the prior art
Put and be used as core measuring part from magneto strictive sensor, by hang mounting means reduce sensor sensing axle and ball float it
Between frictional force, it is ensured that ball float height change and water surface elevation change Complete Synchronization to improve measurement accuracy, former using linker
Manage and apply current limliting buffer unit to weaken wave disturbance factor to improve measurement accuracy.
The technical solution of the utility model：
One kind floating evaporation from water surface station liquid level device for accurately measuring, including instruction case and evaporator above deck is installed,
The bottom of the instruction case and evaporator is in below water surface curve, is hung in the instruction case and is provided with barrel cover, pacified in barrel cover
Measuring cylinder is filled, magnetostriction type sensor, which is arranged in barrel cover, to be used to measure the water level in measuring cylinder, magnetostriction type
The inductive axis of sensor is inserted into measuring cylinder, and the magnetic ball float of magnetostriction type sensor is enclosed on inductive axis to be changed with the water surface
Moved up and down along inductive axis, the signal processing unit of magnetostriction type sensor is arranged on outside measuring cylinder, the side of the instruction case
Interface is connected with being offered at identical height in the side wall of evaporator on wall, and the both ends of communicating pipe connect the side wall of instruction case respectively
The connection interface opened up in the upper and side wall of evaporator realizes that instruction case connects with evaporator, and measuring cylinder in instruction case side wall with opening
If connected entrance connected by connecting tube, the connection opened up on " L " the shape connector and the side wall of evaporator set in evaporator
Orifice, communicating pipe, connection interface, " L " shape connector and connecting tube are engaged and realize measuring cylinder and the water in evaporator
Mutually circulation, the end of " L " shape connector are additionally provided with limitation measuring cylinder and evaporator water convection velocity current limliting diaphragm.
The instruction case inside top is provided with lower draw-bar, and the upper extension being engaged with lower draw-bar is provided with the upper end of barrel cover
Hook, upper hook and lower draw-bar, which coordinate, causes barrel cover and measuring cylinder to be in plumbness all the time.
Connecting tube between the connected entrance opened up in the measuring cylinder and instruction case side wall is internal diameter 8mm flexible pipe, it is ensured that
Barrel cover and measuring cylinder are in plumbness all the time during instruction case run-off the straight.
The center of the magnetic ball float offers the middle through-hole for being conveniently inserted in inductive axis, and magnetic ball float freely floats
Middle through-hole keeps vertical under state.
The magnetic ball float middle through-hole diameter is bigger 1mm than sensing shaft diameter, axis keeping parallelism each other during work.
The bottom of the measuring cylinder, which offers, causes the inductive axis of magnetostriction type sensor to keep vertical positioning hole.
The external diameter of the magnetic ball float is 100mm, density 0.55g/cm3, water line is close to floating under free floating condition
In the middle part of ball, it is ensured that ball float is synchronized with the movement most sensitive with the water surface.
The current limliting diaphragm it is tight be adhered to " L " shape connector end, the current limliting diaphragm thickness is 0.5mm, current limliting
A diameter of 2mm hole, limitation measuring cylinder and evaporator water convection velocity are provided with the middle part of diaphragm.
Technique effect of the present utility model：
1) this measurement apparatus technology realizes easy that measurement accuracy is high, can control measurement error within 0.2mm,
Well solve floating evaporation station liquid level accurate measuring technique problem, in the south water to north source Danjiangkou Reservoir come into operation with
Come, monitoring effect is good, evaporation information gathering automation is really become a reality.
2) special construction of current limliting diaphragm with the ball valve with aperture, compared with the tubule of internal diameter, the mobility of water is more preferable, no
Easily there is the flowing of air embolism blocking water, be not in the not contour phenomenon of linker or so liquid level.
3) this measurement apparatus is simple in construction, easy to maintenance, and cost is cheap, has good market popularization value.
4) the magneto strictive sensor technology mature that this measurement apparatus is selected, has very high resolving power, can identify
The micro-displacement of 0.01mm sizes, meet observation criteria technical requirements, it is obvious to compare technical advantage with congenerous instrument；Mangneto is stretched
Contracting sensor construction is simple, small volume, convenient for installation and maintenance, it is only necessary to opens an aperture in container top, inserts inductive axis, so
Tightly it can be used with a nut handle afterwards.Being compared with congenerous sensor has very high price advantage, and there is good market to push away
Wide value.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the utility model instruction case mounting structure schematic diagram；
Fig. 3 is the utility model magnetic floating ball structure schematic diagram；
Fig. 4 is the utility model current limliting diaphragm structure schematic diagram；
Fig. 5 is ball float through hole vertical calibrating installation signal figure structure schematic representation；
Fig. 6 is the utility model inductive axis scheme of installation in measuring cylinder.
Label represents respectively in figure：1- instruction cases, 2- evaporators, 3- measuring cylinders, 4- communicating pipes, 5- barrel covers, 6- magnetic are floated
Ball, 7- signal processing units, 8- inductive axis, 9- current limlitings diaphragm, 10- lower draw-bars, hook on 11-, 12- through holes, 13- communicating pipes,
14- " L " shapes connector, 31- positioning holes, 91- circular holes.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings：
As Figure 1-Figure 5, a kind of floating evaporation from water surface station liquid level device for accurately measuring, including install above deck
Instruction case 1 and evaporator 2, the bottom of the instruction case 1 and evaporator 2 are in below water surface curve, suspension peace in the instruction case 1
Equipped with barrel cover 5, the installation measuring cylinder 3 in barrel cover 5, magnetostriction type sensor, which is arranged in barrel cover 5, to be used in measuring cylinder
Water level is measured, and the inductive axis 8 of magnetostriction type sensor is inserted into measuring cylinder 3, the magnetic of magnetostriction type sensor
Ball float 6 is enclosed on inductive axis 8 to change along inductive axis with the water surface and moved up and down, the signal processing unit 7 of magnetostriction type sensor
It is arranged on outside measuring cylinder 3, interface is connected with being offered at identical height in the side wall of evaporator 2 in the side wall of the instruction case 1,
The both ends of communicating pipe 4 connect realize instruction case with the interface that connects opened up in the side wall of evaporator 2 in the side wall of instruction case 1 respectively
1 is connected with evaporator 2, and measuring cylinder 3 is connected with the connected entrance opened up in the side wall of instruction case 1 by connecting tube 13, is set in evaporator 2
" L " the shape connector 14 put and the connection orifice opened up in the side wall of evaporator 2, communicating pipe 4, connection interface, " L " shape connect
Joint 14 and connecting tube 13, which are engaged, realizes that measuring cylinder 3 mutually circulates with the aqueous phase in evaporator 2, the end of " L " shape connector 14
End is additionally provided with limitation measuring cylinder 3 and the water convection velocity current limliting diaphragm 9 of evaporator 2.
Lower draw-bar 10 is installed below the upper side wall of instruction case 1, is provided with the upper end of barrel cover 5 and is engaged with lower draw-bar 10
Upper hook 11, upper hook 11 and lower draw-bar 10, which coordinate, causes barrel cover 5 and measuring cylinder 3 to be in plumbness all the time.
Connecting tube 13 between the connected entrance opened up in the measuring cylinder 3 and the side wall of instruction case 1 is internal diameter 8mm flexible pipe,
Ensure that barrel cover 5 and measuring cylinder 3 are in plumbness all the time during 1 run-off the straight of instruction case.
The inductive axis 8 of magnetostriction type sensor is caused to keep hanging down as shown in fig. 6, the bottom of the measuring cylinder 3 offers
Straight positioning hole 31.
There is the middle through-hole 12 for being conveniently inserted in inductive axis 8 at the middle part of magnetic ball float 6 of sensor as shown in Figures 2 and 3, installs
Preceding elder generation carries out posture calibration under natural floating state makes through-bore axis keep vertical.Ball float pose calibrating method such as Fig. 5, is being contained
There are a plumb line A, B by bottom surface on container in water receptacle at 2 points, ball float is swum on the water surface, and one is set in A points
The light source of high brightness, the diameter of light source is approximate with the through hole bore of ball float, and mobile ball float makes the lower end of through hole face light source, such as
Through-bore axis is not vertical when fruit floats, and light will be suitable in the adhesion of ball float lower left side from the point of view of C to a hot spot through ball float through hole
When the metallic particles of weight changes the posture of ball float, on the premise of ensureing that mouth and light source align under through hole, when seeing spot center
The through hole of ball float during B points is adjusted to regard to vertical.
So the axis of inductive axis and ball float through hole all keeps vertical, and inductive axis is parallel with the axis of ball float through hole, axle and
Pressure between ball just greatly reduces, frictional force very little during relative motion, and ball float and surface motions are synchronous, now measurement accuracy pole
It is high.
The center of magnetic ball float 6 offers the middle through-hole 12 for being conveniently inserted in inductive axis 8, and magnetic ball float 6 freely floats
Middle through-hole 12 keeps vertical under floating state.The diameter of 6 middle through-hole of magnetic ball float 12 is bigger 1mm than the diameter of inductive axis 8, during work that
This axis keeping parallelism.The external diameter of magnetic ball float 6 is 100mm, density 0.55g/cm3, water line connects under free floating condition
In the middle part of nearly ball float, it is ensured that ball float is synchronized with the movement most sensitive with the water surface.Even if there is friction to cause ball asynchronous with surface motions, Yin Ke
Taking measurement error minimum caused by frictional force, (float ball density is to increase spheroid in the steady of the water surface slightly larger than 0.50g/cm3
Degree), through-hole diameter 14mm, a diameter of 13mm of inductive axis, the average distance for so ensureing inductive axis and ball float is 0.5mm
(because the viscous force of the too near water of distance can increase measurement error, too far can be too big because of ball float and inductive axis relative position luffing,
Increase measurement error on the contrary).
As Figure 1 and Figure 4, what the current limliting diaphragm 9 was tight is adhered to the end of " L " shape connector 14, the current limliting diaphragm
9 thickness are 0.5mm, and the middle part of current limliting diaphragm 9 is provided with a diameter of 2mm hole 91, limit measuring cylinder 3 and evaporation under Lidar Equation
The water convection velocity of device 2.
The error that wave disturbance factor is brought so is reduced to greatest extent, and liquid level measurement precision is high.Experiment proves current limliting
The endoporus of diaphragm also should not be too small, and otherwise the obvious hysteresis evaporator of liquid level rise during rainfall day in measuring cylinder, causes measurement to be tied
Fruit distortion.
Claims (8)
1. one kind floating evaporation from water surface station liquid level device for accurately measuring, including instruction case and evaporator above deck, institute are installed
The bottom for stating instruction case and evaporator is in below water surface curve, it is characterised in that：Suspension is provided with barrel cover in the instruction case,
Installation measuring cylinder in barrel cover, magnetostriction type sensor, which is arranged in barrel cover, to be used to measure the water level in measuring cylinder, magnetic
Cause the inductive axis of telescopic sensor to be inserted into measuring cylinder, the magnetic ball float of magnetostriction type sensor be enclosed on inductive axis with
Water surface change is moved up and down along inductive axis, and the signal processing unit of magnetostriction type sensor is arranged on outside measuring cylinder, the instrument
Interface is connected with being offered at identical height in the side wall of evaporator in the side wall of device cabinet, and the both ends of communicating pipe connect instrument respectively
The connection interface opened up in the side wall of cabinet and in the side wall of evaporator realizes that instruction case connects with evaporator, measuring cylinder and instruction case
The connected entrance opened up in side wall is connected by connecting tube, is opened on " L " the shape connector and the side wall of evaporator set in evaporator
If connection orifice, communicating pipe, connection interface, " L " shape connector and connecting tube are engaged and realize measuring cylinder and evaporation
Aqueous phase in device mutually circulates, and the end of " L " shape connector is additionally provided with limitation measuring cylinder and evaporator water convection velocity current limliting
Diaphragm.
A kind of 2. floating evaporation from water surface station liquid level device for accurately measuring according to claim 1, it is characterised in that：The instrument
Device cabinet inside top is provided with lower draw-bar, is provided with the upper hook being engaged with lower draw-bar in the upper end of barrel cover, upper hook and under
Hook, which coordinates, causes barrel cover and measuring cylinder to be in plumbness all the time.
A kind of 3. floating evaporation from water surface station liquid level device for accurately measuring according to claim 1, it is characterised in that：The survey
Connecting tube between the connected entrance opened up on graduated cylinder and instruction case side wall is internal diameter 8mm flexible pipe.
A kind of 4. floating evaporation from water surface station liquid level device for accurately measuring according to claim 1, it is characterised in that：The magnetic
The center of property ball float offers the middle through-hole for being conveniently inserted in inductive axis, middle through-hole under magnetic ball float free floating condition
Keep vertical.
5. floating evaporation from water surface station according to claim 4 liquid level device for accurately measuring, it is characterised in that：The magnetic is floated
Ball middle through-hole diameter is bigger 1mm than sensing shaft diameter, axis keeping parallelism each other during work.
A kind of 6. floating evaporation from water surface station liquid level device for accurately measuring according to claim 1, it is characterised in that：The survey
The bottom of graduated cylinder, which offers, causes the inductive axis of magnetostriction type sensor to keep vertical positioning hole.
A kind of 7. floating evaporation from water surface station liquid level device for accurately measuring according to claim 1, it is characterised in that：The magnetic
The external diameter of property ball float is 100mm, density 0.55g/cm3, water line is close in the middle part of ball float under free floating condition.
A kind of 8. floating evaporation from water surface station liquid level device for accurately measuring according to claim 1, it is characterised in that：The limit
Stream diaphragm it is tight be adhered to " L " shape connector end, the current limliting diaphragm thickness be 0.5mm, and current limliting diaphragm middle part is provided with one
Individual a diameter of 2mm hole, limitation measuring cylinder and evaporator water convection velocity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720540068.8U CN206740210U (en) | 2017-05-16 | 2017-05-16 | One kind floating evaporation from water surface station liquid level device for accurately measuring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720540068.8U CN206740210U (en) | 2017-05-16 | 2017-05-16 | One kind floating evaporation from water surface station liquid level device for accurately measuring |
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| Publication Number | Publication Date |
|---|---|
| CN206740210U true CN206740210U (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720540068.8U Active CN206740210U (en) | 2017-05-16 | 2017-05-16 | One kind floating evaporation from water surface station liquid level device for accurately measuring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989800A (en) * | 2017-05-16 | 2017-07-28 | 长江水利委员会水文局 | One kind floating evaporation from water surface station liquid level device for accurately measuring |
| CN114360226A (en) * | 2022-01-13 | 2022-04-15 | 湖北思源水务工程技术有限公司 | Automatic sound and light alarm device for remote monitoring of equipment failure |
-
2017
- 2017-05-16 CN CN201720540068.8U patent/CN206740210U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989800A (en) * | 2017-05-16 | 2017-07-28 | 长江水利委员会水文局 | One kind floating evaporation from water surface station liquid level device for accurately measuring |
| CN114360226A (en) * | 2022-01-13 | 2022-04-15 | 湖北思源水务工程技术有限公司 | Automatic sound and light alarm device for remote monitoring of equipment failure |
| CN114360226B (en) * | 2022-01-13 | 2024-04-02 | 湖北思源水务工程技术有限公司 | Automatic audible and visual alarm device for remote monitoring of equipment faults |
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