CN103453869A - Heat transmission bridge type sensor for measuring erosion and deposition depth on periphery of bridge steel pipe pile - Google Patents

Heat transmission bridge type sensor for measuring erosion and deposition depth on periphery of bridge steel pipe pile Download PDF

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Publication number
CN103453869A
CN103453869A CN2013103743660A CN201310374366A CN103453869A CN 103453869 A CN103453869 A CN 103453869A CN 2013103743660 A CN2013103743660 A CN 2013103743660A CN 201310374366 A CN201310374366 A CN 201310374366A CN 103453869 A CN103453869 A CN 103453869A
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housing
heat
bridge
pipe pile
erosion
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CN2013103743660A
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CN103453869B (en
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丁勇
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Hubei Xinchenguang Construction Engineering Co Ltd
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Abstract

The invention discloses a heat transmission bridge type sensor for measuring erosion and deposition depth on the periphery of a bridge steel pipe pile. The heat transmission bridge type sensor for measuring the erosion and deposition depth on the periphery of the bridge steel pipe pile is based on the principle that a heat source and temperature sensing points are located at the two ends of a heat transmission bridge respectively, the heat emitted by the heat source is transmitted to the temperature sensing points through the heat transmission bridge, and when the heat transmission bridge is located in a water body, the heat loss is in positive correlation with the water velocity and is larger than that in a soil body obviously. The heat transmission bridge type sensor for measuring the erosion and deposition depth on the periphery of the bridge steel pipe pile comprises a shell body, a heat emitting block, temperature probes and other components. The heat emitting block is arranged in the center of the side wall of the inner side of the shell body, and the temperature probes are arranged on the middle points of the four edges of the shell body respectively. The heat emitting block is served as the heat source, and the shell body is served as the heat transmission bridge and transmits heat to the temperature sensors (the temperature sensing points). Rated currents are input to enable the heating block to emit heat continuously, and whether the environment where the sensor located is the water body or the soil body can be distinguished simply by measuring the temperature changing speed and the temperature changing range of the temperature probes in the heating process. A plurality of sensors are arranged at the positions of different depths on the pile body of the steel pipe pile, the boundary surface of the water body and the soil body can be distinguished, and the erosion and deposition depth on the periphery of the bridge steel pipe pile can be determined finally.

Description

Measure the heat transfer bridge type magnetic sensor of the bridge steel pile tube periphery erosion and deposition degree of depth
Technical field
The present invention relates to a kind of hydraulic engineering monitoring device, be specifically related to a kind of heat transfer bridge type magnetic sensor of measuring the bridge steel pile tube periphery erosion and deposition degree of depth.
Background technology
Steel-pipe pile is as a kind of base form of bridge, be widely used in the middle of the construction of all kinds of bridges, and, for the monitoring of the bridge steel pile tube periphery erosion and deposition degree of depth, also still rest on the very low stages of automatization level such as water-level gauge, can't realize round-the-clock automatic monitoring.The erosion and deposition sensor that some are novel, although the possibility of automatic monitoring is provided, the installation of sensors complexity, be unfavorable for the spread of technology.
Heat loss speed and environment of living in are closely related, and water body environment more easily dispels the heat than soil body environment, and radiating rate and being proportionate property of water velocity.In the difference aspect heat dispersion, the invention provides a kind of novel sensor according to the soil body and water body, measure the erosion and deposition degree of depth of bridge steel pile tube periphery, and then realize the auto-real-time monitoring of erosion and deposition state.
Summary of the invention
The object of the present invention is to provide a kind of heat transfer bridge type magnetic sensor of measuring the bridge steel pile tube periphery erosion and deposition degree of depth, principle based on heat loss degree difference in water body and the soil body, heat loss degree by survey sensor environment of living in is distinguished water body and the soil body, change the advantage such as there is pinpoint accuracy, high-durability, making is simple, cost is low in order to monitor under water erosion and deposition.
The technical solution that realizes the object of the invention is:
Sensor comprises power lead, signal wire, housing, temp probe, heating block, thermal insulation material, pointed cone, seal pad.Housing is that tile shape, two ends are that semicircular stainless steel substrates is welded by sidewall.Pointed cone is half solid conical, and the pointed cone end face is connected with housing underrun bolt.Housing inside side walls center is heating block, and four limit mid points respectively have a temp probe.The power lead of heating block and the signal wire of temp probe are drawn from the housing top.In housing, its complementary space is filled with the thermal insulation material, and seal pad is embedded to shell nozzle end welded seal.
The curvature of the sidewall of above-mentioned housing and pointed cone is identical with the curvature of steel-pipe pile outer wall.
The sensor method for making comprises following step:
(a1) housing bottom surface and pointed cone end face are bolted;
(a2) heating block is installed at housing inside side walls center, on heating block, connecting power line is drawn from the housing top;
(a3) at housing inside side walls four limit mid points, a temp probe respectively is installed, is guaranteed that four temp probes and heating block are equidistant, and respectively connect a signal wire on temp probe, draw from the housing top with the power lead doubling;
(a4) in housing, its complementary space is filled with the thermal insulation material;
(a5) seal pad is embedded to shell nozzle end welded seal.
Working sensor principle of the present invention and method are as follows:
Thermal source and temperature-sensitive point lay respectively at the heat bridge two ends, the heat that thermal source gives out reaches the temperature-sensitive point through heat bridge, heat bridge has heat in diabatic process, and environment is lost towards periphery, according to environment difference of living in, the speed of heat loss is also different---when the residing environment of heat bridge is water body, heat loss speed and being proportionate property of water velocity, and obviously be greater than soil body environment.In the present invention, heating block is used as thermal source, and housing, as heat bridge, transfers heat to temp probe (temperature-sensitive point).The input rated current makes the heating block persistent fever, and the heat of heating block passes to temp probe by housing.In heating process, heat loss speed is larger, and the temperature variation of temp probe is just slower, and range of temperature is also less; By measuring temperature changing speed and the amplitude of temp probe in heating process, can distinguishing sensor environment of living in be just water body or the soil body.Different depth position by some installation of sensors at the steel-pipe pile pile body, can distinguish the interphase of water body and the soil body, finally determines the erosion and deposition degree of depth of bridge steel pile tube periphery.
The present invention compared with prior art, its remarkable advantage:
(1) measuring principle of the present invention is simple and reliable: sensor of the present invention can be sensed temperature variation, the size of the temperature data rate of change by temp probe gained in sensor, can determine that sensor is in water body or in the soil body, finally determine mud face position; This monitoring method, do not disturbed by the factors such as current variation, and data are precise and stable;
(2) sensing device manufacture craft of the present invention is simple, easy for installation, is particularly suitable for using on steel-pipe pile, avoids traditional sensors to need the trouble of piling in addition, has broad application prospects and good economic benefit;
(3) measuring accuracy of the present invention is high, and its measuring accuracy can reach 0.2m, and can change precision according to specific requirement, and its precision mainly can be by changing number of sensors and the realization of spacing size;
(4) the present invention is without installation site is limited, as long as have at least the sensor of two different depths can determine respectively mud face position while guaranteeing to monitor in water body and the soil body;
(5) on sensor of the present invention, four temp probes and heating block are equidistant, and heat-transfer path length is consistent, guarantee the validity of data;
(6) the present invention can carry out flushing monitoring to a plurality of monitoring points simultaneously, can in a plurality of monitoring points, sensor of the present invention be installed according to monitoring requirements, the whole flushing monitoring of feasible region.
The accompanying drawing explanation
Fig. 1 is the sensor construction schematic diagram, and wherein Fig. 1 (a) is the sensor construction front view, and Fig. 1 (b) is the sensor construction side view, and Fig. 1 (c) is the sensor construction vertical view.
Fig. 2 is the schematic diagram of installation of sensors on steel-pipe pile.
Each label in figure: steel-pipe pile 11, sensor 12, power lead 121, signal wire 122, housing 123, temp probe 124, heating block 125, thermal insulation material 126, pointed cone 127, seal pad 128.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
In conjunction with Fig. 1 and Fig. 2, sensor 12 comprises power lead 121, signal wire 122, housing 123, temp probe 124, heating block 125, thermal insulation material 126, pointed cone 127, seal pad 128.Housing 123 is that tile shape, two ends are that semicircular stainless steel substrates is welded by sidewall.Pointed cone 127 is half solid conical, and pointed cone 127 end faces are connected with housing 123 underrun bolts.Housing 123 inside side walls centers are that heating block 125, four limit mid points respectively have a temp probe 124.The power lead 121 of heating block 125 and the signal wire 122 of temp probe 124 are drawn from housing 123 tops.In housing 123, its complementary space is filled with thermal insulation material 126, and seal pad 128 is embedded to housing 123 openend welded seals.
The curvature of above-mentioned housing 123 and the sidewall of pointed cone 127 is identical with the curvature of steel-pipe pile 11 outer walls.
The sensor 12 method for makings comprise following step:
(a1) housing 123 bottom surfaces and pointed cone 127 end faces are bolted;
(a2) at housing 123 inside side walls centers, heating block 125 is installed, on heating block 125, connecting power line 121 is drawn from housing 123 tops;
(a3) at housing 123 inside side walls four limit mid points, a temp probe 124 respectively is installed, is guaranteed that four temp probes 124 and heating block 125 are equidistant, and respectively connect a signal wire 122 on temp probe 124, draw from housing 123 tops with power lead 121 doublings;
(a4) in housing 123, its complementary space is filled with thermal insulation material 126;
(a5) seal pad 128 is embedded to housing 123 openend welded seals.
Sensor 12 principle of work of the present invention and method are as follows:
Thermal source and temperature-sensitive point lay respectively at the heat bridge two ends, the heat that thermal source gives out reaches the temperature-sensitive point through heat bridge, heat bridge has heat in diabatic process, and environment is lost towards periphery, according to environment difference of living in, the speed of heat loss is also different---when the residing environment of heat bridge is water body, heat loss speed and being proportionate property of water velocity, and obviously be greater than soil body environment.In the present invention, heating block 125 is used as thermal source, and housing 123, as heat bridge, transfers heat to temp probe 124(temperature-sensitive point).The input rated current makes heating block 125 persistent fevers, and the heat of heating block 125 passes to temp probe 124 by housing 123.In heating process, heat loss speed is larger, and the temperature variation of temp probe 124 is just slower, and range of temperature is also less; By measuring temperature changing speed and the amplitude of temp probe 124 in heating process, can distinguishing sensor 12 environment of living in be just water body or the soil body.Some sensors 12 are arranged on to the different depth position of steel-pipe pile 11 pile bodies, can distinguish the interphase of water body and the soil body, finally determine the erosion and deposition degree of depth of bridge steel pile tube 11 peripheries.
According to the monitoring needs, sensor 12 of the present invention provides a kind of installation method that submerged structure is steel-pipe pile 11 that is applicable to.
Above-mentioned installation method comprises steel-pipe pile 11 and sensor 12, and the housing 123 of sensor 12 and pointed cone 127 edge joint welds are on steel-pipe pile 11.
Above-mentioned installation method comprises following step:
(b1) by several sensors 12 by certain being welded on steel-pipe pile 11 apart from equi-spaced apart;
(b2) steel-pipe pile 11 that will be welded with sensor 12 is placed on monitoring point;
(b3) the hammering steel-pipe pile 11, and the steel-pipe pile 11 that is welded with sensor 12 is inserted in soil, until steel-pipe pile 11 is got to the absolute altitude of appointment, complete the final installation of sensor 12.
Above demonstration and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (3)

1. a heat transfer bridge type magnetic sensor of measuring the bridge steel pile tube periphery erosion and deposition degree of depth, it is characterized in that: sensor (12) comprises power lead (121), signal wire (122), housing (123), temp probe (124), heating block (125), thermal insulation material (126), pointed cone (127), seal pad (128); Housing (123) is that tile shape, two ends are that semicircular stainless steel substrates is welded by sidewall; Pointed cone (127) is half solid conical, and pointed cone (127) end face is connected with housing (123) underrun bolt; Housing (123) inside side walls center is heating block (125), and four limit mid points respectively have a temp probe (124); The power lead (121) of heating block (125) and the signal wire (122) of temp probe (124) are drawn from housing (123) top; In housing (123), its complementary space is filled with thermal insulation material (126), and seal pad (128) is embedded to housing (123) openend welded seal.
2. the heat transfer bridge type magnetic sensor based on the measurement bridge steel pile tube claimed in claim 1 periphery erosion and deposition degree of depth, it is characterized in that: the curvature of described housing (123) and the sidewall of pointed cone (127) is identical with the curvature of steel-pipe pile (11) outer wall.
3. the heat transfer bridge-type sensor production method based on the measurement bridge steel pile tube periphery erosion and deposition degree of depth claimed in claim 1, is characterized in that, comprises following step:
A1, housing (123) bottom surface and pointed cone (127) end face are bolted;
A2, heating block (125) is installed at housing (123) inside side walls center, is drawn from housing (123) top at the upper connecting power line (121) of heating block (125);
A3, at housing (123) inside side walls four limit mid points, a temp probe (124) respectively is installed, guarantee that four temp probes (124) and heating block (125) are equidistant, and respectively connect a signal wire (122) on temp probe (124), with power lead (121) doubling, from housing (123) top, draw;
In a4, housing (123), its complementary space is filled with thermal insulation material (126);
A5, seal pad (128) is embedded to housing (123) openend welded seal.
CN201310374366.0A 2013-08-24 2013-08-24 Measure the heat transfer bridge type magnetic sensor of the bridge steel pile tube periphery erosion and deposition degree of depth Expired - Fee Related CN103453869B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105538221A (en) * 2016-02-26 2016-05-04 武汉市中邦博尔高新科技有限公司 Tubular pile type underwater magnetic sensor mounting device
CN106248029A (en) * 2016-08-29 2016-12-21 南京理工大学 A kind of modular isolation heat bridge type erosion and deposition depth transducer
CN106405760A (en) * 2016-08-31 2017-02-15 南京理工大学 Optical ribbon cable for measuring underwater erosion and deposition depth
CN112216068A (en) * 2020-09-02 2021-01-12 广东电网有限责任公司 Submarine cable scouring monitoring early warning protection system and method
WO2023222758A1 (en) * 2022-05-18 2023-11-23 Nantes Université Biocolonization sensor

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Publication number Priority date Publication date Assignee Title
CN87209272U (en) * 1987-06-14 1988-06-22 唐作安 Differential liquid level sensor with thermoelement string
CN1696620A (en) * 2005-06-21 2005-11-16 金仲和 Sensor for monitoring position of fluid level
CN1800792A (en) * 2005-05-26 2006-07-12 郭豫生 Heat conduction sensor and measuring method thereof
US20110242309A1 (en) * 2010-04-06 2011-10-06 National Applied Research Laboratories Multi-lens monitoring system for bed elevation around a pier
CN102288147A (en) * 2011-05-10 2011-12-21 大连理工大学 Device for measuring scouring depth monitored based on active temperature control distributed temperature
CN103076063A (en) * 2013-01-21 2013-05-01 南京理工大学 Optical fiber grating water and soil interface sensor and manufacturing and installation method thereof
CN203405193U (en) * 2013-08-24 2014-01-22 丁勇 Heat transfer bridge type sensor for measuring erosion and deposition of bridge steel pipe pile

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87209272U (en) * 1987-06-14 1988-06-22 唐作安 Differential liquid level sensor with thermoelement string
CN1800792A (en) * 2005-05-26 2006-07-12 郭豫生 Heat conduction sensor and measuring method thereof
CN1696620A (en) * 2005-06-21 2005-11-16 金仲和 Sensor for monitoring position of fluid level
US20110242309A1 (en) * 2010-04-06 2011-10-06 National Applied Research Laboratories Multi-lens monitoring system for bed elevation around a pier
CN102288147A (en) * 2011-05-10 2011-12-21 大连理工大学 Device for measuring scouring depth monitored based on active temperature control distributed temperature
CN103076063A (en) * 2013-01-21 2013-05-01 南京理工大学 Optical fiber grating water and soil interface sensor and manufacturing and installation method thereof
CN203405193U (en) * 2013-08-24 2014-01-22 丁勇 Heat transfer bridge type sensor for measuring erosion and deposition of bridge steel pipe pile

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105538221A (en) * 2016-02-26 2016-05-04 武汉市中邦博尔高新科技有限公司 Tubular pile type underwater magnetic sensor mounting device
CN105538221B (en) * 2016-02-26 2017-04-19 武汉市中邦博尔高新科技有限公司 Tubular pile type underwater magnetic sensor mounting device
CN106248029A (en) * 2016-08-29 2016-12-21 南京理工大学 A kind of modular isolation heat bridge type erosion and deposition depth transducer
CN106405760A (en) * 2016-08-31 2017-02-15 南京理工大学 Optical ribbon cable for measuring underwater erosion and deposition depth
CN106405760B (en) * 2016-08-31 2019-05-07 南京理工大学 A kind of optical fiber ribbon cable measuring underwater erosion and deposition depth
CN112216068A (en) * 2020-09-02 2021-01-12 广东电网有限责任公司 Submarine cable scouring monitoring early warning protection system and method
CN112216068B (en) * 2020-09-02 2022-03-29 广东电网有限责任公司 Submarine cable scouring monitoring early warning protection system and method
WO2023222758A1 (en) * 2022-05-18 2023-11-23 Nantes Université Biocolonization sensor

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Inventor after: Fang Rui

Inventor after: Ding Yong

Inventor before: Ding Yong

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Effective date of registration: 20191014

Address after: 441000 no.3-1, Tanxi Road, Xiangcheng District, Xiangfan City, Hubei Province

Patentee after: Fang Rui

Address before: 1104, room 4, building 137, higher education village, 210036 Main Street, Gulou Avenue, Gulou District, Jiangsu, Nanjing

Patentee before: Ding Yong

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Effective date of registration: 20191104

Address after: 441000 Fancheng highway section, Tuanshan road management office, high tech Zone, Xiangyang City, Xiangfan City, Hubei Province

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Granted publication date: 20151202

Termination date: 20200824