CN109029624B - Water level monitoring and alarming system of tension line pontoon - Google Patents

Water level monitoring and alarming system of tension line pontoon Download PDF

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Publication number
CN109029624B
CN109029624B CN201810579510.7A CN201810579510A CN109029624B CN 109029624 B CN109029624 B CN 109029624B CN 201810579510 A CN201810579510 A CN 201810579510A CN 109029624 B CN109029624 B CN 109029624B
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China
Prior art keywords
rotating plate
monitoring alarm
level monitoring
shaped groove
plate
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CN201810579510.7A
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CN109029624A (en
Inventor
刘晖
朱德康
程翔
朱嘉晶
解克宇
洪建慧
桂朝晖
江宏伟
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Fuchunjiang Hydroelectric Power Plant State Grid Xinyuan Hydropower Co Ltd
STATE GRID XINYUAN HYDROPOWER CO Ltd
State Grid Corp of China SGCC
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Fuchunjiang Hydroelectric Power Plant State Grid Xinyuan Hydropower Co Ltd
STATE GRID XINYUAN HYDROPOWER CO Ltd
State Grid Corp of China SGCC
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Priority to CN201810579510.7A priority Critical patent/CN109029624B/en
Publication of CN109029624A publication Critical patent/CN109029624A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Alarm Devices (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)

Abstract

The invention discloses a tension wire pontoon liquid level monitoring alarm system, which comprises an acquisition computer and a network switch which are connected with each other, wherein the outer side of the network switch is connected with a plurality of data measurement and control units in different areas, and each data measurement and control unit is connected with a monitoring alarm device; monitoring alarm device includes the mount pad, is equipped with locating plate and spacing post on the mount pad side by side, and the locating plate both ends are rotated respectively and are connected with last rotor plate and lower rotor plate, go up the rotor plate and be equipped with micro-gap switch and micro-gap switch down respectively with the lower rotor plate outside. The invention can monitor the height of the tension wire and give an alarm, and has high working stability and good monitoring effect.

Description

Water level monitoring and alarming system of tension line pontoon
Technical Field
The invention relates to a tension wire monitoring system, in particular to a tension wire pontoon liquid level monitoring alarm system.
Background
The tension line is generally arranged in an observation corridor of the hydraulic dam and consists of an observation point, a measuring line and a measuring point box, and the horizontal displacement of the observation point is measured by periodically measuring the distance between the measuring line of the observation point and a reference line. The existing measuring point box generally comprises a floating support device and a CCD (charge coupled device) tension instrument, a floating vessel is arranged in a water tank, the tension line penetrates through the floating vessel to enable the floating vessel to lift the measuring line, the height position of the measuring line is ensured, the measuring line can freely and horizontally move, and the position of the measuring line can be dynamically measured through the CCD tension instrument when the measuring line horizontally moves, so that a required deviation value is obtained.
However, due to the fact that the water is wet in spring and autumn, the water enters the floating pontoon to cause the liquid level in the water tank to rise, and the floating pontoon causes the measuring line to collide with the top of the CCD tensile wire instrument after rising; in summer, the anti-freezing liquid in the water tank is evaporated due to overhigh temperature, so that the floating pontoon is fallen behind to cause the line measuring to collide the bottom of the CCD tension instrument, and the two conditions can cause the tension line body to be incapable of freely moving to cause abnormal data acquisition. Therefore, a device capable of monitoring and alarming the height of the tensil wire is needed, so that the height position of the tensil wire can be kept within a proper measurement height range of the CCD tensil wire instrument in real time.
Disclosure of Invention
The invention aims to provide a tension line pontoon liquid level monitoring and alarming system. The novel tension wire height monitoring device can monitor the height of the tension wire and give an alarm, and is high in working stability and good in monitoring effect.
The technical scheme of the invention is as follows: a tension line pontoon liquid level monitoring alarm system comprises an acquisition computer and a network switch which are connected with each other, wherein the outer side of the network switch is connected with a plurality of data measurement and control units in different areas, and each data measurement and control unit is connected with a monitoring alarm device; monitoring alarm device includes the mount pad, is equipped with locating plate and spacing post on the mount pad side by side, and the locating plate both ends are rotated respectively and are connected with last rotary plate and lower rotary plate, go up the rotary plate and are equipped with micro-gap switch and micro-gap switch down respectively in the rotary plate outside, go up the rotary plate tip and are equipped with trapezoidal cross-section's last U-shaped groove, go up U-shaped inslot wall and laminate each other with spacing post, lower rotary plate tip is equipped with the lower U-shaped groove that is located the spacing post outside, is equipped with the first spring that is located the spacing post outside down between U-shaped.
In the tension line pontoon liquid level monitoring and alarming system, the monitoring and alarming device is arranged in the floating support box between the floating support device and the CCD tension line instrument.
In the tension wire pontoon liquid level monitoring and alarming system, the top of the upper rotating plate, which is close to one side of the upper U-shaped groove, is provided with an upper pressing ball, and a gap is reserved between the upper pressing ball and an action reed of an upper microswitch; the lower pressing ball body is arranged at the bottom of one side, close to the lower U-shaped groove, of the lower rotating plate, and a gap is reserved between the lower pressing ball body and an action reed of the lower microswitch.
In the tension wire pontoon liquid level monitoring and alarming system, the data measurement and control unit is directly connected with the network switch through the RS-485 serial bus.
In the tension wire pontoon liquid level monitoring and alarming system, the network switch is connected with the acquisition computer through an RS-232 serial bus.
In the tension wire pontoon liquid level monitoring and alarming system, the upper rotating plate and the lower rotating plate are respectively connected with the positioning plate through the upper compensation hole and the lower compensation hole, the top of the upper rotating plate is provided with a second spring positioned in the upper compensation hole, and the bottom of the lower rotating plate is provided with a third spring positioned in the lower compensation hole.
Compared with the prior art, the invention can ensure that the upper rotating plate and the lower rotating plate are respectively positioned at the high side and the low side of the tension wire and keep the horizontal state and the free rotation state through the structure of the monitoring alarm device, when the tension wire is contacted with the upper rotating plate or the lower rotating plate due to the height lifting, the upper rotating plate or the lower rotating plate can rotate under the driving force of the tension wire and contact with the corresponding micro switch, so that the micro switch can transmit signals to the data measurement and control unit after the height of the tension wire reaches a limited position, and the alarm signal is transmitted to the user through the data measurement and control unit, the network switch and the acquisition computer which are connected in sequence, therefore, the monitoring and alarming device can monitor and alarm the height of the lead wire body, the user can be ensured to adjust the anti-freezing liquid level in the water tank at the first time, and the working stability and the monitoring effect of the invention are improved.
In addition, the structure of the monitoring alarm device can effectively avoid collision of the tension wire when the tension wire moves horizontally, so that the working stability and the offset effect of the tension wire are further improved; the upper rotating plate and the lower rotating plate can be compensated through the cooperation of the upper compensating hole, the lower compensating hole, the second spring and the third spring, the advance alarm of the monitoring alarm device caused by the fact that the tension wire is too close to the positioning plate when contacting the upper rotating plate or the lower rotating plate is avoided, and the monitoring precision of the monitoring alarm device on the tension wire is improved. Therefore, the invention can monitor the height of the tension wire and give an alarm without influencing the free movement of the tension wire, and has high working stability and good monitoring effect.
Drawings
FIG. 1 is a schematic structural view of the invention;
FIG. 2 is a schematic view of the monitoring alarm device;
fig. 3 is a view from direction a of fig. 2.
The labels in the figures are: 1-acquisition computer, 2-network switch, 3-data measurement and control unit, 5-monitoring alarm device, 7-mounting seat, 8-positioning plate, 9-limit column, 10-upper rotating plate, 11-lower rotating plate, 12-upper microswitch, 13-lower microswitch, 14-first spring, 15-second spring, 16-third spring, 101-upper U-shaped groove, 102-upper pressing sphere, 801-upper compensation hole, 802-lower compensation hole, 111-lower U-shaped groove and 112-lower pressing sphere.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Examples are given. A tension line pontoon liquid level monitoring alarm system is formed as shown in figure 1 and comprises an acquisition computer 1 and a network switch 2(HUB) which are connected with each other, wherein the outer side of the acquisition computer 1 can be respectively connected with a database server, a mobile workstation and a dam center, the outer side of the network switch 2 is connected with a plurality of data measurement and control units 3(DAU) in different areas, and each data measurement and control unit 3 is connected with a monitoring alarm device 5; monitoring alarm device 5 includes mount pad 7, is equipped with locating plate 8 and spacing post 9 on the mount pad 7 side by side, 8 both ends of locating plate rotate respectively and are connected with last rotary plate 10 and lower rotary plate 11, go up rotary plate 10 and be equipped with micro-gap switch 12 respectively with lower rotary plate 11 outside and micro-gap switch 13 down, go up micro-gap switch 12 and micro-gap switch 13 down and fix on the mount pad 7 that is close to spacing post 9 one side through the mount pad, go up micro-gap switch 12 and micro-gap switch 13 outside connection data measurement and control unit 3 down, go up the last U-shaped groove 101 that the rotary plate 10 tip is equipped with trapezoidal cross-section, go up U-shaped groove 101 inner wall and laminate each other with spacing post 9, 11 tip of lower rotary plate is equipped with the lower U-shaped groove 111 that is located the spacing post 9 outside, is equipped with the first spring 14 that is.
The mounting seat 7 is arranged in a floating box between the floating device and the CCD tensile instrument.
An upper pressing ball 102 is arranged at the top of one side of the upper rotating plate 10 close to the upper U-shaped groove 101, and a gap is reserved between the upper pressing ball 102 and an action reed of the upper microswitch 12; the bottom of the lower rotating plate 11 near the lower U-shaped groove 111 is provided with a lower pressing ball 112, and a gap is left between the lower pressing ball 112 and an action reed of the lower microswitch 13.
The data measurement and control unit 3 is directly connected with the network switch 2 through an RS-485 serial bus.
The network switch 2 is connected with the acquisition computer 1 through an RS-232 serial bus.
The upper rotating plate 10 and the lower rotating plate 11 are respectively connected with the positioning plate 8 through an upper compensation hole 801 and a lower compensation hole 802, the top of the upper rotating plate 10 is provided with a second spring 15 positioned in the upper compensation hole 801, and the bottom of the lower rotating plate 11 is provided with a third spring 16 positioned in the lower compensation hole 802.
The working principle of the invention is as follows: according to the invention, the monitoring alarm device 5 is placed in the floating device box body between the CCD tensile tester and the floating device, the positioning plate 8 and the limiting column 9 are respectively arranged at two sides of the tensile wire, the upper rotating plate 10 and the lower rotating plate 11 are respectively positioned above and below the tensile wire, and large gaps are respectively arranged among the positioning plate 8, the limiting column 9, the upper rotating plate 10, the lower rotating plate 11 and the tensile wire, so that the monitoring alarm device 5 cannot influence the normal work and movement of the tensile wire, and the measuring effect of the CCD tensile tester is ensured. Go up the rotor plate 10 at ordinary times and be in horizontal position under the limiting displacement of last U-shaped groove 101 and spacing post 9, when the rotor plate 10 is gone up because of the too high collision of height to the lead wire, go up rotor plate 10 and rotate and make and press down spheroid 102 contact on and open micro-gap switch 12 under the thrust effect that makes progress of lead wire, go up micro-gap switch 12 and open the back and transmit alarm signal for acquisition computer 1 through data measurement and control unit 3 and network switch 2, acquisition computer 1 sends respectively to removal workstation and dam center after obtaining the signal, thereby make the user adjust the liquid level of floating support device before lead wire collision CCD lead wire appearance, play stable monitoring and alarm effect. Similarly, the lower rotating plate 11 is also in a horizontal state under the action of the first spring 14 at ordinary times, and when the tension wire is lowered to a limited position, an alarm effect is played to a user through the cooperation of the lower rotating plate 11 and the lower microswitch 13, so that the monitoring alarm device 5 has a stable early warning effect under the condition that the normal work of the tension wire is not influenced. The upper rotation plate 10 can be compensated by the cooperation of the upper compensation hole 801 and the second spring 15. When the tension wire is in a position close to the positioning plate 8 when contacting the upper rotating plate 10, the tension wire can drive the upper rotating plate 10 close to one end of the positioning plate 8 to lift, and when the rotating part of the upper rotating plate 10 rises to the limit in the upper compensation hole 801, the tension wire can drive the upper pressing ball 102 to lift and contact the upper microswitch 12, so that the limit error of the horizontal moving position of the tension wire on the monitoring alarm device 5 is reduced, and the monitoring effect of the monitoring alarm device 5 is improved; similarly, the compensation effect on the lower rotating plate 11 can be achieved through the lower compensation hole 802 and the third spring 16. The invention can transmit the lead tension wire to a user in a mechanical early warning mode when the lead tension wire reaches the limit position through the monitoring alarm device 5, so that the invention can reduce the monitoring error caused by fault and improve the early warning effect on the lead tension wire, and has high working stability and good monitoring effect.

Claims (6)

1. The utility model provides a lead wire pontoon liquid level monitoring alarm system which characterized in that: the system comprises an acquisition computer (1) and a network switch (2) which are connected with each other, wherein the outer side of the network switch (2) is connected with a plurality of data measurement and control units (3) in different areas, and each data measurement and control unit (3) is connected with a monitoring alarm device (5); the monitoring alarm device (5) comprises a mounting base (7), a positioning plate (8) and a limiting column (9) are arranged on the mounting base (7) side by side, two ends of the positioning plate (8) are respectively and rotatably connected with an upper rotating plate (10) and a lower rotating plate (11), the outer sides of the upper rotating plate (10) and the lower rotating plate (11) are respectively provided with an upper micro switch (12) and a lower micro switch (13), the end part of the upper rotating plate (10) is provided with an upper U-shaped groove (101) with a trapezoidal section, the inner wall of the upper U-shaped groove (101) is mutually attached to the limiting column (9), the end part of the lower rotating plate (11) is provided with a lower U-shaped groove (111) positioned on the outer side of the limiting column (9), and a first spring (14) positioned on the outer side of the limiting column; the upper rotating plate (10) and the lower rotating plate (11) are respectively positioned above and below the tension wire.
2. The tension line vessel level monitoring alarm system of claim 1, wherein: the monitoring alarm device (5) is arranged in a floating box between the floating device and the CCD tensile instrument.
3. The tension line vessel level monitoring alarm system of claim 1, wherein: an upper pressing ball body (102) is arranged at the top of one side of the upper rotating plate (10) close to the upper U-shaped groove (101), and a gap is reserved between the upper pressing ball body (102) and an action reed of the upper microswitch (12); the bottom of one side, close to the lower U-shaped groove (111), of the lower rotating plate (11) is provided with a lower pressing ball body (112), and a gap is reserved between the lower pressing ball body (112) and an action reed of the lower microswitch (13).
4. The tension line vessel level monitoring alarm system of claim 1, wherein: the data measurement and control unit (3) is directly connected with the network switch (2) through an RS-485 serial bus.
5. The tension line vessel level monitoring alarm system of claim 1, wherein: the network switch (2) is connected with the acquisition computer (1) through an RS-232 serial bus.
6. The tension line vessel level monitoring alarm system of claim 1, wherein: the upper rotating plate (10) and the lower rotating plate (11) are connected with the positioning plate (8) through the upper compensation hole (801) and the lower compensation hole (802) respectively, the second spring (15) located in the upper compensation hole (801) is arranged at the top of the upper rotating plate (10), and the third spring (16) located in the lower compensation hole (802) is arranged at the bottom of the lower rotating plate (11).
CN201810579510.7A 2018-06-07 2018-06-07 Water level monitoring and alarming system of tension line pontoon Active CN109029624B (en)

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CN201810579510.7A CN109029624B (en) 2018-06-07 2018-06-07 Water level monitoring and alarming system of tension line pontoon

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Application Number Priority Date Filing Date Title
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CN109029624B true CN109029624B (en) 2019-12-24

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Publication number Priority date Publication date Assignee Title
CN114397931B (en) * 2021-12-08 2022-10-14 国网福建省电力有限公司 Dehumidification and liquid supplementation integrated tension wire intelligent control method and control device

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CN1560558A (en) * 2004-02-18 2005-01-05 水利部南京水利水文自动化研究所 Two-way lead wire device
KR20070032412A (en) * 2005-09-16 2007-03-22 한국건설기술연구원 System and method for measuring liquid level by image
KR100894977B1 (en) * 2008-09-17 2009-04-24 주식회사 와텍 Hydrograph apparatus in use binocular disparity
EP2736750A1 (en) * 2011-07-28 2014-06-04 Sc2N Device for measuring liquid level
CN206638317U (en) * 2017-03-27 2017-11-14 上海置信电气非晶有限公司 A kind of liquid level, temperature monitoring and pressure release set composite
CN107543486A (en) * 2017-06-26 2018-01-05 国电南京自动化股份有限公司 A kind of adaptive dynode of condenser type tensile-line instrument

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9183739B2 (en) * 2012-06-28 2015-11-10 National Applied Research Laboratories Bridge safety monitoring integrated system with full optical fiber and the method for sensing thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1560558A (en) * 2004-02-18 2005-01-05 水利部南京水利水文自动化研究所 Two-way lead wire device
KR20070032412A (en) * 2005-09-16 2007-03-22 한국건설기술연구원 System and method for measuring liquid level by image
KR100894977B1 (en) * 2008-09-17 2009-04-24 주식회사 와텍 Hydrograph apparatus in use binocular disparity
EP2736750A1 (en) * 2011-07-28 2014-06-04 Sc2N Device for measuring liquid level
CN206638317U (en) * 2017-03-27 2017-11-14 上海置信电气非晶有限公司 A kind of liquid level, temperature monitoring and pressure release set composite
CN107543486A (en) * 2017-06-26 2018-01-05 国电南京自动化股份有限公司 A kind of adaptive dynode of condenser type tensile-line instrument

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