CN110307827A - A kind of hydrostatic level and its measurement method with double fast-response probes - Google Patents
A kind of hydrostatic level and its measurement method with double fast-response probes Download PDFInfo
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- CN110307827A CN110307827A CN201910690393.6A CN201910690393A CN110307827A CN 110307827 A CN110307827 A CN 110307827A CN 201910690393 A CN201910690393 A CN 201910690393A CN 110307827 A CN110307827 A CN 110307827A
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- Prior art keywords
- tank body
- level
- liquid
- flowmeter
- liquid level
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
- G01C5/04—Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points
Abstract
A kind of hydrostatic level and its measurement method with double fast-response probes disclosed by the invention, tank body is mounted on the base, one block level is installed on pedestal simultaneously, the liquid level in tank body is adjusted to horizontality by block level, liquid level area change is avoided to influence measurement accuracy, flowmeter is further installed on pedestal, the amount of flow of liquid is determined by flowmeter, liquid level sensor is set at the top of tank body simultaneously, liquid level sensor is connect with the buoy in tank body, when liquid flows, rising or falling for measurement point can be obtained in data by observing liquid level sensor, then the height that liquid level rises or falls is calculated by the parameter of flowmeter.Horizontal positioned reduce of tank body is measured accidentally survey, the change in elevation of liquid level can be accurately calculated by flowmeter, improves measurement accuracy by the hydrostatic level of double fast-response probes.
Description
Technical field
It is specially a kind of with the quiet of double fast-response probes the present invention relates to the monitoring device technical field of building settlement
Power level and its measurement method, the settlement monitoring suitable for buildings such as bridge, dam, tunnel, houses.
Background technique
It constructs on the ground, such as building, bridge, dam can cause settlement of foundation, hydrostatic level is prison at present
Survey the capital equipment of this kind of sedimentation.Currently, most of hydrostatic levels are all the principles using linker, pass through measurement liquid level
Variation obtains the change in location of measurement two o'clock, and then obtains the relative settlement of the two.Nowadays this kind of sensor substantially has
Common disadvantage is easy to be influenced by external environment, influences its using effect.
Most of existing hydrostatic level is using the displacement of the lifting performance measuring point of liquid levels, in range of temperature
The biggish north frequently results in the result fluctuations of measurement due to the thermal expansion and cold contraction effect of liquid, it is difficult to which it is final heavy to determine
Drop.Development test it can be found that the monitoring effect of hydrostatic level to very temperature sensitive, for the measuring point of requirements for high precision,
In one day temperature highest and when minimum temperature as a result, a thousand li of difference；In addition, being generally difficult in actual installation so that static(al)
Level is in a vertical state, if hydrostatic level is in heeling condition, the fluid change amplitude of two measuring points is difficult equally,
Influence the measurement accuracy of hydrostatic level.To sum up, the operating condition high for measurement accuracy demand, existing hydrostatic level are difficult to reach
To its required precision, it is badly in need of a kind of high-precision hydrostatic level.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provide a kind of hydrostatic level with double fast-response probes and
Its measurement method, solves existing hydrostatic level measurement accuracy by temperature change, caused by measurement accuracy difference problem.
The present invention is to be achieved through the following technical solutions:
A kind of hydrostatic level with double fast-response probes, including the identical level of two structures, two levels
It is respectively used to be mounted on measurement point and datum mark；
Level includes tank body, liquid level sensor, block level, buoy, flowmeter and the pedestal of constant temperature；
Tank body and block level are respectively provided at the top of the base, and liquid is filled in tank body, and buoy is arranged in tank body,
The top of tank body is arranged in liquid level sensor, is provided with buoy measuring staff at the top of buoy, the upper end of buoy measuring staff pass through tank body with
Liquid level sensor connection；
The bottom of pedestal is arranged in flowmeter, and flowmeter is connected to tank body, in use, two flowmeters of two levels
It is connected to by liquid line.
Preferably, the side wall of the tank body is hollow structure, including outer wall and inner wall, is formed and is used between outer wall and inner wall
The thermal insulation layer of liquid is perfused.
Preferably, anti-icing fluid is perfused in the thermal insulation layer.
Preferably, the outer wall of the tank body is coated with insulating layer.
Preferably, top cover is provided at the top of the tank body, liquid level sensor is arranged on top cover.
Preferably, it is additionally provided with stomata on the top cover, stomata is connected to tank body, in use, by the gas of two levels
Hole passes through pipeline connection.
Preferably, the level is mounted on measurement point or datum mark, extension tripod and pedestal by extension tripod
Connection.
The present invention also provides the measurement methods for stating the hydrostatic level with double fast-response probes, which is characterized in that including
Following steps:
S1, two levels are separately mounted to datum mark and measurement point；
S2, pass through observation block level, two levels are adjusted to horizontality respectively；
S3, the height that two levels are adjusted by total station, make two levels be in same level；
S4, the flowmeter of two levels is connected to by pipeline, and the filling liquid in tank body；
S5, the data fed back according to the liquid level sensor of measurement point, determine that measurement point rises or falls, and it is anti-to read flowmeter
The flow parameter of feedback determines the height that liquid level rises or falls in tank body according to flow parameter, and formula is as follows:
V/s=h
Wherein, V is the liquid volume of flowmeter measurement, and S is the horizontal section area of tank body, and h is height.
Compared with prior art, the invention has the following beneficial technical effects:
A kind of hydrostatic level with double fast-response probes provided by the invention, the tank body of constant temperature are mounted on the base,
Simultaneously a block level is installed on pedestal, the liquid level in tank body is adjusted to by horizontality by block level, is avoided
Liquid level area change influences measurement accuracy, and flowmeter is further installed on pedestal, the flow of liquid is determined by flowmeter, together
When at the top of tank body, liquid level sensor is set, liquid level sensor connect with the buoy in tank body, when liquid flowing, passes through observation
Rising or falling for measurement point can be obtained in the data of liquid level sensor, then by the parameter of flowmeter calculate liquid level rise or
The height of decline.The hydrostatic level of double fast-response probes effectively avoids ambient temperature in tank body using the tank body of constant temperature
The volume of liquid influences, and solves liquid and expands with heat and contract with cold the influence caused by measurement result, then by block level to tank
The horizontality of body is calibrated, influence of the liquid level area change to measurement result caused by solving because of tank body placement position,
It solves while influence measurement result external factor, it is straight due to liquid line using the flow of the accurate metering liquid of flowmeter
Diameter is less than the diameter of tank body, therefore the variation of liquid volume that flowmeter measures is more accurate, and liquid level sensor is to liquid level
Micro variation be difficult to detect, simultaneously because the surface tension of liquid, the middle part on the surface of liquid is lower compared with marginal position,
The liquid level position of liquid level sensor detection is different, and measurement is also not close identical, and therefore, the present invention is accurately detected finally by flowmeter
The flow volume of liquid, and calculated by the flow volume of liquid, the height of measurement point sedimentation is accurately obtained, is greatly improved
Measurement accuracy.
Further, hollow structure is set by the side wall of tank body, perfusion liquid body forms thermal insulation layer in the sidewall, prevents the external world
The volume of liquid, improves measurement accuracy in temperature tank body.
Further, insulating layer is coated on the outer wall of tank body, liquid in tank body is made to be in temperature constant state.
Further, level is fixed by extension tripod, facilitates operation.
The measurement method of the hydrostatic level with double fast-response probes provided by the invention, is determined by liquid level sensor
Then the rising or sedimentation of measurement point calculate rising or settling amount by the data that flowmeter is fed back, measurement method is simple, and surveys
Amount is accurate.
Detailed description of the invention
Fig. 1 is the main view of level of the invention；
Fig. 2 is the cross-sectional view of tank body of the present invention；
Fig. 3 is the top view of tank body of the present invention；
Fig. 4 is the front view of top cover and sensor of the present invention；
Fig. 5 is the top view of invention top cover and sensor；
Fig. 6 is the top view of invention pedestal；
Fig. 7 is the connection schematic diagram of hydrostatic level at datum mark and measuring point.
In figure: 1- liquid level sensor；2- tank body；3- buoy measuring staff；4- buoy；5- flowmeter；6- block level；7- gas
Hole；8- data line；10- liquid injection hole；11- insulating layer；13- flowmeter fixation hole；14- bracket fixation hole；16- liquid guide flow hole；
17- flue；18- liquid line；19- benchmark level；20- measuring point level.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, described to be explanation of the invention rather than limit
It is fixed.
Refering to fig. 1-7, a kind of hydrostatic level with double fast-response probes, including the identical level of two structures,
Respectively benchmark level 19 and measuring point level 20；Level include one top have opening tank body 2, liquid level sensor 1,
Block level 6, buoy 4 and pedestal.
Referring to Fig.2, the setting of tank body 2 is at the top of the base, block level 6 is set on the base and is located at the one of tank body 2
Side is filled with liquid in tank body 2, and buoy 4 is arranged in tank body 2, and the top of tank body 2 is provided with top cover, and liquid level sensor 1 is arranged
In the top surface of top cover, the top of buoy 4 is provided with buoy measuring staff 3, and the upper end of buoy measuring staff 3 passes through top cover and liquid level sensor 1
Connection.
Refering to Fig. 3-5, stomata 7 is additionally provided on top cover, stomata is connected to tank body 2, in use, by the gas of two levels
Hole is connected to by flue 17.
Refering to Fig. 6, liquid guide flow hole 16 is arranged in the center of pedestal, and the upper end in liquid guide flow hole 16 and the inside of tank body 2 connect
Logical, flowmeter 5 is arranged in the lower end in liquid guide flow hole 16, and flowmeter 5 is connect with the bottom surface of pedestal, in use, passing through liquid line 18
Two flowmeters of two levels are connected.
The side wall of the tank body 2 is double-deck hollow structure, including outer wall and inner wall, is formed and is used between outer wall and inner wall
The thermal insulation layer of liquid is perfused, liquid injection hole 10 is set at the top of side wall, it is small that specific heat capacity is perfused in the sidewall by liquid injection hole 10
Liquid, so that the temperature of liquid keeps stablizing in side wall, the effects such as avoid expanding with heat and contract with cold, and improves the steady of hydrostatic level work
Definite value and measurement accuracy.Meanwhile insulating layer 11 is coated on the outer wall of tank body 2, avoid ambient temperature from influencing the liquid in tank body
Temperature, ensure that the liquid in tank body 2 is in temperature constant state.
It is preferred that insulating layer is heat-preservation cotton.
It is preferred that injecting anti-icing fluid in thermal insulation layer.
Internal screw thread is provided on the inner wall at the top of tank body 2, top cover is connect by screw thread with tank body 2.
In another embodiment, tank body 2 is the cylinder-like structure of both ends open, and being provided centrally with for base top surface is annular recessed
Slot is provided with internal screw thread on the side wall of groove, and internal screw thread is arranged on the outer wall of tank body 2, and the lower end of tank body passes through screw thread and pedestal
It connects, sealing ring is set in groove, guarantees the leakproofness of tank body；Or it is cohered in the junction of tank body and pedestal using butter etc.
Material seals its interface, and so that it will not leakages.
Flowmeter fixation hole 13 is arranged in the edge of pedestal, and flowmeter 5 is fixed on to the bottom of pedestal by bolt, pedestal
Bracket fixation hole 14 is additionally provided on edge, in use, being fixed by the bracket hole 14 is mounted on extension tripod for level
Top.
Liquid level sensor 1 is connected to power supply by external data line 8, which is battery, the number that liquid level sensor 1 acquires
According to by wireless signal transmission to terminal.The collected data wireless signal transmission of flowmeter 5 is to terminal.
Refering to Fig. 7, below to a kind of working principle of the hydrostatic level with double fast-response probes provided by the invention
It is explained in detail.
Step 1, an extension tripod is fixed respectively in basis points and point to be measured, then by benchmark level 19
It is respectively and fixedly installed on two extension tripods with measuring point level 20.
Step 2, using 6 adjustment base of block level, it is at horizontality.
Step 3, the height that two levels are adjusted by total station, is in benchmark level 19 and measuring point level 20
At same level.
Step 4, the stomata of two levels is connected by pipeline, while passes through liquid line 18 for the stream of two levels
Meter connection, is then given in two tank bodies respectively by liquid injection hole 10 and injects liquid.
Step 5, liquid level sensor and flowmeter are debugged, wireless device is made it through and is connect with terminal.
Step 6, the data that liquid level sensor and flowmeter return on terminal monitoring measuring point level 20.
When measuring point rises, the intracorporal liquid flow of 20 tank of measuring point level flows to benchmark level 19 by liquid line, surveys
The point intracorporal water level decreasing of 20 tank of level；
When measuring point decline, the intracorporal liquid flow of 19 tank of benchmark level flows to measuring point level 20 by liquid line, surveys
The intracorporal water level of point 20 tank of level rises；
According to the data that the liquid level sensor of measuring point level 20 returns, rising or falling for measurement point can be obtained.
Then the data that flowmeter 5 is fed back are read, the data fed back according to flowmeter 5 are known divided by the area of tank body 2
The variable quantity of road liquid level can accurately measure measuring point sedimentation value by the above method.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (8)
1. a kind of hydrostatic level with double fast-response probes, which is characterized in that including the identical level of two structures, two
A level is respectively used to be mounted on measurement point and datum mark；
Level includes tank body (2), liquid level sensor (1), block level (6), buoy (4), flowmeter (5) and the bottom of constant temperature
Seat；
Tank body (2) and block level (6) are respectively provided at the top of the base, and liquid, buoy (4) setting are filled in tank body (2)
In tank body (2), liquid level sensor (1) setting is provided with buoy measuring staff (3) at the top of the top of tank body (2), buoy (4),
The upper end of buoy measuring staff (3) passes through tank body (2) and connect with liquid level sensor (1)；
The bottom of pedestal is arranged in flowmeter (5), and flowmeter (5) is connected to tank body (2), in use, two of two levels
Flowmeter is connected to by liquid line (18).
2. having the hydrostatic level of double fast-response probes according to claim 1, which is characterized in that the tank body (2)
Side wall is hollow structure, including outer wall and inner wall, and the thermal insulation layer for liquid to be perfused is formed between outer wall and inner wall.
3. having the hydrostatic level of double fast-response probes according to claim 2, which is characterized in that filled in the thermal insulation layer
Infuse anti-icing fluid.
4. having the hydrostatic level of double fast-response probes according to claim 1, which is characterized in that the tank body (1)
Outer wall is coated with insulating layer.
5. having the hydrostatic level of double fast-response probes according to claim 1, which is characterized in that the tank body (2)
Top is provided with top cover, and liquid level sensor (1) is arranged on top cover.
6. having the hydrostatic level of double fast-response probes according to claim 5, which is characterized in that also set on the top cover
Stomata (7) are equipped with, stomata is connected to tank body (2), in use, the stomata of two levels is passed through pipeline connection.
7. having the hydrostatic level of double fast-response probes according to claim 1, which is characterized in that the level passes through
Extension tripod is mounted on measurement point or datum mark, and extension tripod is connect with pedestal.
8. there is the measurement method of the hydrostatic level of double fast-response probes described in a kind of -7 any one according to claim 1,
It is characterized in that, comprising the following steps:
S1, two levels are separately mounted to datum mark and measurement point；
S2, pass through observation block level (6), two levels are adjusted to horizontality respectively；
S3, the height that two levels are adjusted by total station, make two levels be in same level；
S4, the flowmeter of two levels is connected to by pipeline, and the filling liquid in tank body；
S5, the data fed back according to the liquid level sensor of measurement point, determine that measurement point rises or falls, and read flowmeter feedback
Flow parameter determines the height that liquid level rises or falls in tank body according to flow parameter, and formula is as follows:
V/s=h
Wherein, V is the liquid volume of flowmeter measurement, and S is the horizontal section area of tank body, and h is height.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910690393.6A CN110307827A (en) | 2019-07-29 | 2019-07-29 | A kind of hydrostatic level and its measurement method with double fast-response probes |
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| CN201910690393.6A CN110307827A (en) | 2019-07-29 | 2019-07-29 | A kind of hydrostatic level and its measurement method with double fast-response probes |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793500A (en) * | 2019-11-19 | 2020-02-14 | 嘉兴同禾传感技术有限公司 | Thermostatic static leveling system and use method thereof |
| CN110906905A (en) * | 2019-12-03 | 2020-03-24 | 宁波朗达工程科技有限公司 | Ultra-high precision static level gauge |
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| CN210108339U (en) * | 2019-07-29 | 2020-02-21 | 北京市政路桥股份有限公司 | Hydrostatic level with double sensitive sensors |
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| US4672842A (en) * | 1985-06-26 | 1987-06-16 | Hasselmann Detlev E M | System and method for automatically monitoring liquid volume changes in storage tanks |
| JP2010054221A (en) * | 2008-08-26 | 2010-03-11 | Mitsui Mining & Smelting Co Ltd | Fluid remaining amount measuring apparatus and method, and vehicle exhaust gas reduction apparatus and vehicle exhaust gas reduction method using them |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793500A (en) * | 2019-11-19 | 2020-02-14 | 嘉兴同禾传感技术有限公司 | Thermostatic static leveling system and use method thereof |
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| CN110906905B (en) * | 2019-12-03 | 2020-11-17 | 宁波朗达工程科技有限公司 | Ultra-high precision static level gauge |
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