CN109341485B - Ice thickness monitoring device and method based on water body fluid solid phase change volume change principle - Google Patents
Ice thickness monitoring device and method based on water body fluid solid phase change volume change principle Download PDFInfo
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- CN109341485B CN109341485B CN201811452129.0A CN201811452129A CN109341485B CN 109341485 B CN109341485 B CN 109341485B CN 201811452129 A CN201811452129 A CN 201811452129A CN 109341485 B CN109341485 B CN 109341485B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
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Abstract
The invention discloses an ice thickness monitoring device and method based on a water body fluid solid phase change volume change principle. The device is fixedly connected by an organic glass tube and a steel tube through waterproof threads; a protective sleeve is fixedly arranged outside the organic glass tube, and a graduated scale is engraved on the organic glass tube and a foldable tripod is arranged on the organic glass tube; a reversible top cover is arranged at the top end of the organic glass tube; the tail end of the steel pipe is fixedly provided with a ball valve; the protective sleeve consists of a heat-insulating layer, a deformation layer which does not lose elasticity in an extremely cold environment and an anti-floating layer made of a high-density material; the monitoring method comprises the following steps: placing the ice hole into equipment, injecting water, and injecting oil after the liquid level is stable; contacting the tail end of the steel pipe with the bottom of the ice layer, and fixing a tripod; the readings at time are monitored and the ice thickness is calculated. The invention has simple structure, stable and reliable operation in extremely cold weather, labor saving and convenient periodic observation of fixed monitoring stations.
Description
Technical Field
The invention belongs to the technical field of ice layer thickness measurement, and particularly relates to an ice thickness monitoring device and method based on an aqueous liquid solid-phase volume change principle.
Background
Freezing is a ubiquitous natural phenomenon in cold regions, in which river ice plays an important role in the global climate system, and polar sea ice is an indicator of global climate change. The ice layer thickness is one of the most key physical indexes in ice science and ice engineering research, is a basic parameter for describing the ice states of river ice, sea ice and reservoirs, and is also one of the key indexes of acting force of freezing on hydraulic buildings.
In the past, ice thickness is generally considered as the most difficult physical index of sea ice or fresh water ice to detect, and manual drilling measurement is the most common detection means for measuring ice thickness. The method needs to drill holes on the ice surface and measure the ice thickness by using a ruler, the intersection position of the bottom surface of the ice layer is not easy to observe, the error is large, and in addition, the low efficiency can hardly meet the requirement of continuous detection of the fixed-point ice thickness.
At present, various automatic ice thickness observation technologies are developed at home and abroad, the application of mooring sonar and ultrasonic detection technologies realizes the automatic monitoring of fixed-point ice thickness change, but the measurement precision is easily influenced by the monitoring environment and the physical properties of ice water, in addition, the sonar and ultrasonic detection technologies are relatively large in investment once, the arrangement of an ice thickness observation device in a large range is limited by observation cost, and the ice engineering is limited to be developed to be fine.
Disclosure of Invention
Aiming at the problems in the prior art, the invention designs an ice thickness monitoring device and method based on the principle of volume change of liquid-solid phase change of water body, which utilizes the volume change generated by the liquid-solid phase change of the water body to reflect the frozen thickness of an ice layer at an observation point in real time.
The technical scheme of the invention is realized as follows: an ice thickness monitoring device based on the principle of aqueous humor solid-phase volume change is fixedly installed by an organic glass tube 2 and a steel tube 1 through a waterproof threaded connection 6; a protective sleeve 8 is fixedly arranged outside the organic glass tube 2, a foldable tripod 5 is arranged on the organic glass tube 2, and a graduated scale 3 is engraved on the organic glass tube 2; the zero scale of the graduated scale 3 is flush with the outer surface of the tail end of the steel pipe 1; a reversible top cover 4 is arranged at the top end of the organic glass tube 2; the ball valve 7 is fixedly installed at the tail end of the steel pipe 1, the radius of the steel pipe 1 is larger than that of the organic glass pipe 2, and oil liquid and a water body of a measuring place need to be injected into the steel pipe 1 and the organic glass pipe 2. The protective sleeve 8 consists of a deformation layer 11, an anti-floating layer 10 and a heat insulation layer 9; the deformation layer 11 does not lose elasticity in an extremely cold environment, and the anti-floating layer 10 is made of a high-density material.
A measuring method of an ice thickness monitoring device based on the principle of solid-phase volume change of aqueous body fluid comprises the following steps:
s1: when the ice surface freezes about 10cm, chiseling out the work hole at the monitoring point ice surface, opening ball valve 7 and putting above-mentioned device into the aquatic perpendicularly, the water passes through ball valve 7 and gets into steel pipe 1, after the water liquid level in the inflow pipe is stable unchangeable, pours into the fluid of a certain volume to organic glass pipe 2 through top cap 4, after the fluid liquid level is stable no longer descends, closes ball valve 7, notes this fluidThe numerical value of the oil liquid level at the graduated scale 3 is recorded as hFirst stage；
S2: the tail end of the steel pipe 1 is contacted with the bottom of the ice layer, a tripod 5 is fixed, and the numerical value of the upper surface of the ice layer on the graduated scale 3 is read and recorded as LBeginning of ice；
S3: when the thickness of the ice layer is measured, the real-time numerical value of the oil liquid level at the position of the graduated scale 3 is read and recorded as hPowderThen, the ice layer thickness H at this time is:
wherein r is the radius of the organic glass tube; and R is the radius of the steel pipe.
The invention has novel, reasonable and simple structure, is convenient for periodic observation at a fixed monitoring station, avoids the waste of manpower and resources caused by opening ice holes for many times in long-term monitoring, and achieves the effects of simple and convenient assembly and disassembly operation, operator saving, low labor intensity and stable and reliable operation. In addition, the device uses the liquid level difference caused by the solid-phase volume change of the water body liquid to measure the ice thickness, the precision can reach millimeter level, and the requirements of scientific research and engineering can be met.
Drawings
FIG. 1 is a schematic structural diagram of an ice thickness monitoring device based on the principle of solid-phase volume change of aqueous body fluid;
fig. 2 is a sectional view of the structure of the protective sleeve.
Description of part numbers in the figures:
1. steel pipe, 2, organic glass pipe, 3, scale, 4, top cap, 5, tripod, 6, waterproof threaded connection, 7, ball valve, 8, protective sleeve, 9, heat preservation, 10, anti-floating layer, 11, deformation layer.
Detailed Description
The following detailed description of the inventive embodiments is provided in connection with the accompanying drawings. An ice thickness monitoring device based on the principle of aqueous humor solid-phase volume change is fixedly installed by an organic glass tube 2 and a steel tube 1 through a waterproof threaded connection 6; a protective sleeve 8 is fixedly arranged outside the organic glass tube 2, a foldable tripod 5 is arranged on the organic glass tube 2, and a graduated scale 3 is engraved on the organic glass tube 2; the zero scale of the graduated scale 3 is flush with the outer surface of the tail end of the steel pipe 1; a reversible top cover 4 is arranged at the top end of the organic glass tube 2; the ball valve 7 is fixedly installed at the tail end of the steel pipe 1, the radius of the steel pipe 1 is larger than that of the organic glass pipe 2, and oil liquid and a water body of a measuring place need to be injected into the steel pipe 1 and the organic glass pipe 2. The protective sleeve 8 consists of a deformation layer 11, an anti-floating layer 10 and a heat insulation layer 9; the deformation layer 11 does not lose elasticity in an extremely cold environment, and the anti-floating layer 10 is made of a high-density material.
When the operation is used, after the working hole is dug on the ice surface, open ball valve 7, put into the aquatic with above-mentioned device, the water passes through ball valve 7 and gets into steel pipe 1, treat that the water liquid level is stable back in organic glass pipe 2, pour into quantitative fluid into in organic glass pipe 2 through top cap 4, under fluid action of gravity, the water in steel pipe 1 is followed ball valve 7 and is discharged, treat that the fluid liquid level of organic glass pipe 2 department is stable after, the reading of fluid liquid level at scale 3 at this moment is taken notes for h to the recordFirst stage. Closing the ball valve 7, tightly attaching the tail end of the steel pipe 1 to the lower layer of the ice surface, opening the tripod 5 for fixing and supporting, recording the reading of the upper layer of the ice surface on the graduated scale 3, and recording the reading as LBeginning of ice. Along with the downward freezing of the water body, the water body in the steel pipe 1 and the water body outside the steel pipe 1 are kept at the same speed and are frozen downward under the good heat conduction effect of the steel pipe 1, so that the freezing thicknesses of the water bodies inside and outside the steel pipe 1 are ensured to be the same. The water body in the steel tube 1 is frozen, the volume is expanded, the oil is forced to be pressed, and the liquid level of the oil rises along the organic glass tube 2. Afterwards, when the ice thickness needs to be observed, the reading of the oil liquid level at the graduated scale 3 is read, and the reading is recorded as hPowderThen, the ice layer thickness H at this time is:
wherein r is the radius of the organic glass tube; and R is the radius of the steel pipe.
Claims (2)
1. The utility model provides an ice thickness monitoring devices based on aqueous humor solid-phase change volume change principle which characterized in that: an ice thickness monitoring device based on the principle of aqueous humor solid-phase volume change is fixedly installed by an organic glass tube (2) and a steel tube (1) through a waterproof threaded connection (6); a protective sleeve (8) is fixedly installed outside the organic glass tube (2), a foldable tripod (5) is installed on the organic glass tube (2), and a graduated scale (3) is engraved on the organic glass tube (2); the zero scale of the graduated scale (3) is flush with the outer surface of the tail end of the steel pipe (1); a reversible top cover (4) is arranged at the top end of the organic glass tube (2); the tail end of the steel pipe (1) is fixedly provided with a ball valve (7); the measuring method of the ice thickness monitoring device based on the principle of aqueous body fluid solid phase change volume change comprises the following steps:
s1: when the ice surface freezes 10cm, chiseling out the work hole at the monitoring point ice surface, open ball valve (7) and put into the aquatic perpendicularly with above-mentioned device, the water passes through ball valve (7) and gets into steel pipe (1), treat that the intraductal water liquid level of inflow is stable unchangeable after, pour into the fluid of certain volume into organic glass pipe (2) through top cap (4), treat that the fluid liquid level is stable no longer to descend the back, close ball valve (7), the numerical value of fluid liquid level at scale (3) department at this moment is maked down, mark as hFirst stage；
S2: the tail end of the steel pipe (1) is contacted with the bottom of the ice layer, a tripod (5) is fixed, and the numerical value of the upper surface of the ice layer on the graduated scale (3) is read and recorded as LBeginning of ice；
S3: when the thickness of the ice layer is measured, the numerical value of the real-time oil liquid level at the position of the graduated scale (3) is read and recorded as hPowderThen, the ice layer thickness H at this time is:
wherein r is the radius of the organic glass tube; and R is the radius of the steel pipe.
2. An ice thickness monitoring device based on the principle of solid-phase volume change of aqueous body fluid according to claim 1, wherein: the protective sleeve (8) consists of a deformation layer (11), an anti-floating layer (10) and a heat-insulating layer (9); the deformation layer (11) does not lose elasticity in an extremely cold environment, and the anti-floating layer (10) is made of a high-density material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811452129.0A CN109341485B (en) | 2018-11-30 | 2018-11-30 | Ice thickness monitoring device and method based on water body fluid solid phase change volume change principle |
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| CN201811452129.0A CN109341485B (en) | 2018-11-30 | 2018-11-30 | Ice thickness monitoring device and method based on water body fluid solid phase change volume change principle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111964640A (en) * | 2020-08-15 | 2020-11-20 | 海南海玻工程玻璃有限公司 | Glass detection device |
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| JPH08240424A (en) * | 1995-03-01 | 1996-09-17 | Hitachi Constr Mach Co Ltd | Frozen road surface cutting work vehicle |
| CN201885651U (en) * | 2010-11-30 | 2011-06-29 | 周泉清 | Accurate measuring and metering device for variable of liquid level of hydraulic container or oil cylinder |
| CN202119358U (en) * | 2011-01-25 | 2012-01-18 | 上海市青浦区华新中学 | Simple plane measuring device |
| CN203745169U (en) * | 2014-03-05 | 2014-07-30 | 河北钢铁股份有限公司承德分公司 | Main beam camber measurement apparatus of bridge type crane |
| CN205066315U (en) * | 2015-10-16 | 2016-03-02 | 河南西科电子有限公司 | System ice caliper detector |
| CN206052677U (en) * | 2016-09-14 | 2017-03-29 | 甘肃张掖生态科学研究院 | A kind of thickness of frozen earth layer measurement apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111964640A (en) * | 2020-08-15 | 2020-11-20 | 海南海玻工程玻璃有限公司 | Glass detection device |
| CN111964640B (en) * | 2020-08-15 | 2021-10-08 | 海南海玻工程玻璃有限公司 | Glass detection device |
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