CN107228652B - Photovoltaic grounding grid with subsidence alarm system - Google Patents
Photovoltaic grounding grid with subsidence alarm system Download PDFInfo
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- CN107228652B CN107228652B CN201710454699.2A CN201710454699A CN107228652B CN 107228652 B CN107228652 B CN 107228652B CN 201710454699 A CN201710454699 A CN 201710454699A CN 107228652 B CN107228652 B CN 107228652B
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 66
- 239000010959 steel Substances 0.000 claims abstract description 66
- 238000001514 detection method Methods 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 239000003245 coal Substances 0.000 description 6
- 238000005065 mining Methods 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000010247 contact dermatitis Diseases 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
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- Remote Sensing (AREA)
- Alarm Systems (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention provides a photovoltaic grounding grid with a subsidence alarm system, which comprises a plurality of criss-cross connected flat steels and also comprises: the settlement monitor is arranged at the joint of the two flat steels and comprises a first contact and a second contact which are arranged at intervals, the first contact and the second contact are respectively connected with two openings of a circuit, and the circuit is also connected with an alarm system; when the two flat steels move relatively, the first contact and the second contact are closed to enable the circuit to form a passage, and the alarm system works. The invention can accurately detect the change condition of the geology in real time, has high precision, and the mesh points cover the whole photovoltaic power station, and utilizes the original grounding flat steel network, thereby greatly saving the investment cost and realizing the subsidence monitoring without dead angles.
Description
Technical Field
The invention relates to the field of building settlement monitoring systems, in particular to a photovoltaic grounding grid with a settlement alarm system.
Background
The government of China encourages the construction of photovoltaic power stations in coal mining subsidence areas, and the national photovoltaic leaders are mostly in the coal mining subsidence areas. In the coal mining subsidence area, because of the opening of a low coal seam, an underground cavity is caused, and further unstable geology is formed, and the problem of irregular collapse is caused. The coal mining subsidence area can not be built, subsidence endangers people safety, and a photovoltaic power station is proposed for improving the utilization of land. Due to unscheduled collapse, the photovoltaic power station needs to monitor the collapse situation of the land all the time to take measures as early as possible to avoid loss. Under this big background, require photovoltaic power plant to carry out real time monitoring to the subsidence geology, have the early warning function of subsidence. The existing foundation settlement monitoring is mostly based on a GPS positioning function, the altitude is measured, the error is large, the sensitivity is insufficient for the tiny geological settlement, the cost is high, the distribution is complex, and the popularization is difficult. And the photovoltaic power station generally occupies a large area, thousands of acres of land are frequently occupied, and the traditional settlement monitoring method cannot be achieved at all.
Disclosure of Invention
In order to solve the technical problem, the invention provides a photovoltaic grounding grid with a subsidence alarm system, which is used for solving the problems of low sensitivity to tiny geological subsidence, high cost, complex distribution and limited detection area in the prior art.
In order to solve the above problems, the invention provides a photovoltaic grounding grid with a subsidence alarm system, which comprises a grounding grid comprising a plurality of criss-cross connected flat steels, and further comprises:
the settlement monitor is arranged at the joint of the two flat steels and comprises a first contact and a second contact which are arranged at intervals, the first contact and the second contact are respectively connected with two openings of a circuit, and the circuit is also connected with an alarm system; when the two flat steels move relatively, the first contact and the second contact are closed to enable the circuit to form a passage, and the alarm system works.
The settlement monitor is arranged at the joint of the photovoltaic grounding grid, when the foundation is in a normal state, the alarm system is in a dormant state, the foundation is settled, the first contact and the second contact of the settlement monitor are closed, current is generated in a circuit, and the alarm system starts to give an alarm.
The invention is further improved in that the two flat steels forming the joint are respectively a first flat steel and a second flat steel, the first flat steel is connected with the first contact, and the second flat steel is connected with the second contact; when the first contact is positioned between the first flat steel and the second contact and the first flat steel and the second flat steel are relatively close to each other, the first contact and the second contact are closed; when the first contact is positioned between the second contact and the second flat steel, and the first flat steel and the second flat steel are relatively far away, the first contact and the second contact are closed.
The invention has the further improvement that the settlement monitor also comprises a sleeve, the sleeve is arranged on the first flat steel, a suspension rod is arranged in the sleeve, and the first contact is arranged on the suspension rod; the settlement monitor also comprises a movable rod inserted in the sleeve, the movable rod is arranged on the second flat steel, and the movable rod protrudes out of the second contact; when the first flat steel and the second flat steel move relatively, the first contact and the second contact are closed.
The invention is further improved in that the sleeve and the movable rod are connected to the flat steel by bolts and nuts.
In a further improvement of the present invention, the circuit further includes a wire connected to the first contact and the second contact, and the wire is further connected to a dc power source and a resistive load.
The invention has the further improvement that two ends of the resistance load are also connected with a current detection device in parallel, and the alarm system is electrically connected with the current detection device; when the first contact and the second contact are closed, current is generated in the circuit, the current detection device detects the current, and an alarm system is activated.
A further improvement of the invention is that the upper surface of the sedimentation monitor is covered with a protective device.
A further development of the invention is that the protective device is a copper braid. The copper braid realizes the original grounding function of the grounding grid and does not influence the normal electrical grounding function of the grounding grid.
Compared with the prior art, the invention has the beneficial effects that:
the settlement monitor is arranged in the grounding grid and used for detecting whether the foundation surface collapses, and the settlement monitor also comprises an alarm system which can give an alarm after the foundation collapses. The invention can accurately detect the change condition of the geology in real time, has high precision, and the mesh points cover the whole photovoltaic power station, and utilizes the original grounding flat steel network, thereby greatly saving the investment cost and realizing the subsidence monitoring without dead angles.
Drawings
FIG. 1 is a schematic diagram of a photovoltaic grounding grid with a subsidence warning system according to the present invention when the contacts are not closed;
FIG. 2 is a schematic view of the photovoltaic grounding grid with a subsidence warning system of the present invention with the contacts closed;
FIG. 3 is a top view of a photovoltaic grounding grid with a subsidence warning system according to the present invention;
fig. 4 is a distribution diagram of a photovoltaic grounding grid with a subsidence alarm system on a flat steel grounding grid in the invention.
Reference numerals
11. A first flat steel; 12. a second flat steel; 2. a settlement monitor; 21. a first contact; 22. a second contact; 23. an alarm system; 24. a sleeve; 25. a movable rod; 26. a current detection device; 27. a wire; 28. a direct current power supply; 29. a resistive load; 3. a bolt and a nut; 4. copper braid.
Detailed Description
The above and further features and advantages of the present invention will be apparent from the following, complete description of the invention, taken in conjunction with the accompanying drawings, wherein the described embodiments are merely some, but not all embodiments of the invention.
The invention provides a photovoltaic grounding grid with a subsidence alarm system. When the construction of the photovoltaic power station is carried out in the coal mining subsidence area, whether the foundation collapses or not needs to be noticed all the time, so that the photovoltaic power station needs to monitor the collapse condition of the land all the time to take measures as early as possible, and loss is avoided. The foundation settlement monitoring of prior art is based on GPS locate function more, and the error is big, does not have sufficient sensitivity to small geology sinks, and with high costs, and the stationing is complicated, is difficult to promote, also is difficult to the face. According to the invention, the settlement monitor is arranged at the joint of the flat steel, and when foundation subsides, an alarm system in the settlement monitor gives an alarm, so that workers can find and carry out corresponding treatment in time. The structure of the photovoltaic grounding grid with the subsidence warning system is described below with reference to the attached drawings.
Referring to fig. 1, 2 and 3, the invention relates to a photovoltaic grounding grid with a subsidence alarm system, wherein a plurality of photovoltaic grounding grids are criss-cross connected to form a woven flat steel, a subsidence monitor 2 is arranged at the joint of two flat steels, the subsidence monitor 2 comprises a first contact 21 and a second contact 22 which are arranged at intervals, the first contact 21 and the second contact 22 are respectively arranged at two openings of a circuit, and the circuit is also connected with an alarm system 23. When the foundation subsides, relative movement takes place between the band steel, and the relative position of the junction of two band steel changes, and first contact 21 and second contact 22 take place to close, make whole circuit form a communicating access state, produce the electric current in the circuit, alarm system 23 begins to report to the police.
The flat steels are respectively a first flat steel 11 and a second flat steel 12, the first flat steel 11 is connected with a first contact 21, the second flat steel 12 is connected with a second contact 22, when the first contact 21 is positioned between the first flat steel 11 and the second contact 22 and the first flat steel 11 and the second flat steel 12 are relatively close to each other, the first contact 21 and the second contact 22 are closed, and the alarm works; when the first contact 21 is located between the second contact 22 and the second flat steel 12 and the first flat steel 11 and the second flat steel 12 are relatively far away, the first contact 21 and the second contact 22 are closed and the alarm operates.
Furthermore, the sedimentation monitor 2 comprises a sleeve 24, the sleeve 24 being arranged on the first flat bar 11, and a vertically downward rod being arranged in the sleeve 24, on which rod the first contact 21 is arranged. The second flat bar 12 is connected with a movable rod 25, and the sleeve 24 and the movable rod 25 are connected with the flat bar through bolts and nuts 3. The movable rod 25 is inserted into the sleeve 24 as part of the sedimentation monitor 2 and the second contact 22 is arranged projecting on the movable rod, and when the movable rod 25 of the second flat steel 12 and the sleeve 24 on the first flat steel 11 are moved relative to each other, the first contact 21 and the second contact 22 are closed and the electrical circuit is completed. In order to ensure the contact sensitivity of the first contact 21 and the second contact 22, a limit structure is arranged in the sleeve 24, and the limit structure can limit the moving path of the movable rod 25, so that the first contact 21 and the second contact 22 are prevented from being staggered when flat steel moves relatively to each other, and the sensitivity of an alarm system is prevented from being influenced.
The first contact 21 and the second contact 22 are connected to the positive pole and the negative pole of a direct current power supply 28 through a lead 27, a resistance load 29 is connected in a circuit, a current detection device 26 is also connected in parallel to the two ends of the resistance load 29, an alarm system 23 is connected to the current detection device 26, when the first contact 21 and the second contact 22 are closed, a current is generated by the closed circuit, the current is detected by the current detection device 26 and transmitted to the alarm system 23, and the alarm system 23 generates an alarm.
As a preferred embodiment of the invention, a protection device is provided on the upper surface of the sedimentation monitor 2, which protection device is a copper braid 4. The copper braid is used for protecting a circuit device in the settlement monitor 2, and the original grounding function of the grounding grid is realized by the copper braid without influencing the normal electrical grounding function of the grounding grid. .
According to the invention, the settlement monitor is arranged at the connection position of the photovoltaic grounding grid, when the foundation is in a normal state, the alarm system is in a dormant state, the foundation is settled, the first contact and the second contact of the settlement monitor are closed, current is generated in a circuit, and the alarm system starts to alarm. The invention can accurately detect the change condition of the geology in real time, has high precision, and the mesh points cover the whole photovoltaic power station, and utilizes the original grounding flat steel network, thereby greatly saving the investment cost and realizing the subsidence monitoring without dead angles.
The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.
Claims (8)
1. The utility model provides a photovoltaic grounding net with subsidence alarm system, grounding net include many vertically and horizontally staggered connection's band steel, its characterized in that still includes:
the settlement monitor is arranged at the joint of the two flat steels and comprises a first contact and a second contact which are arranged at intervals, the first contact and the second contact are respectively connected with two openings of a circuit, and the circuit is also connected with an alarm system;
when the two flat steels move relatively, the first contact and the second contact are closed to enable the circuit to form a passage, and the alarm system works;
the two flat steels forming the connection part are respectively a first flat steel and a second flat steel, the first flat steel is connected with the first contact, and the second flat steel is connected with the second contact;
when the first contact is positioned between the first flat steel and the second contact and the first flat steel and the second flat steel are relatively close to each other, the first contact and the second contact are closed;
when the first contact is positioned between the second contact and the second flat steel, and the first flat steel and the second flat steel are relatively far away, the first contact and the second contact are closed.
2. The photovoltaic grounding grid with the subsidence alarm system of claim 1, wherein the subsidence monitor further comprises a sleeve, the sleeve is arranged on the first flat steel, a suspension rod is arranged in the sleeve, and the first contact is arranged on the suspension rod;
the settlement monitor also comprises a movable rod inserted in the sleeve, the movable rod is arranged on the second flat steel, and the movable rod protrudes out of the second contact;
when the first flat steel and the second flat steel move relatively, the first contact and the second contact are closed.
3. The photovoltaic grounding grid with the subsidence warning system of claim 2, wherein a limiting structure is arranged in the sleeve, and the limiting structure defines a moving path of the movable rod.
4. The photovoltaic grounding grid with a subsidence warning system of claim 2, wherein the sleeve and the movable rod are connected to the flat steel through bolts and nuts.
5. The photovoltaic grounding grid with the subsidence warning system of claim 1, wherein the circuit further comprises a wire connected with the first contact and the second contact, and a direct current power source and a resistive load are further connected to the wire.
6. The photovoltaic grounding grid with the subsidence alarm system as claimed in claim 5, wherein a current detection device is further connected in parallel to two ends of the resistive load, and the alarm system is electrically connected to the current detection device;
when the first contact and the second contact are closed, current is generated in the circuit, the current detection device detects the current, and an alarm system works.
7. The photovoltaic grounded grid with a settlement warning system of claim 1, wherein the upper surface of the settlement monitor is covered with a protective device.
8. The photovoltaic grounding grid with a subsidence warning system of claim 7, wherein the protection device is a copper braid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710454699.2A CN107228652B (en) | 2017-06-15 | 2017-06-15 | Photovoltaic grounding grid with subsidence alarm system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710454699.2A CN107228652B (en) | 2017-06-15 | 2017-06-15 | Photovoltaic grounding grid with subsidence alarm system |
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| Publication Number | Publication Date |
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| CN107228652A CN107228652A (en) | 2017-10-03 |
| CN107228652B true CN107228652B (en) | 2020-01-07 |
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| CN201710454699.2A Active CN107228652B (en) | 2017-06-15 | 2017-06-15 | Photovoltaic grounding grid with subsidence alarm system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108242603A (en) * | 2017-12-23 | 2018-07-03 | 河南智金网络技术有限公司 | A kind of pin connection mode grounding flat steel device |
| CN107959137A (en) * | 2017-12-23 | 2018-04-24 | 河南智金网络技术有限公司 | A kind of curve band steel strengthens the earthing or grounding means of support |
| CN107959136A (en) * | 2017-12-23 | 2018-04-24 | 河南智金网络技术有限公司 | A kind of slide rail type grounding flat steel attachment device |
| CN108288771A (en) * | 2017-12-23 | 2018-07-17 | 河南智金网络技术有限公司 | A kind of nested type band steel ground connection extending apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202083341U (en) * | 2011-04-29 | 2011-12-21 | 山西晋城无烟煤矿业集团有限责任公司 | Intelligent early warning type top plate safety detector |
| CN203759839U (en) * | 2014-03-13 | 2014-08-06 | 国家电网公司 | Pipe-through cable capable of monitoring sinking |
| CN104123434A (en) * | 2014-06-13 | 2014-10-29 | 国家电网公司 | Real-time active control method for surface subsidence generated by top pipe tunnel in penetrating expressway |
| CN105756712A (en) * | 2016-04-18 | 2016-07-13 | 长安大学 | Intelligent early warning device and early warning method for tunnel excavation deformation |
-
2017
- 2017-06-15 CN CN201710454699.2A patent/CN107228652B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202083341U (en) * | 2011-04-29 | 2011-12-21 | 山西晋城无烟煤矿业集团有限责任公司 | Intelligent early warning type top plate safety detector |
| CN203759839U (en) * | 2014-03-13 | 2014-08-06 | 国家电网公司 | Pipe-through cable capable of monitoring sinking |
| CN104123434A (en) * | 2014-06-13 | 2014-10-29 | 国家电网公司 | Real-time active control method for surface subsidence generated by top pipe tunnel in penetrating expressway |
| CN105756712A (en) * | 2016-04-18 | 2016-07-13 | 长安大学 | Intelligent early warning device and early warning method for tunnel excavation deformation |
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| CN107228652A (en) | 2017-10-03 |
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Denomination of invention: Photovoltaic grounding grid with sinking alarm system Granted publication date: 20200107 Pledgee: China Merchants Bank Co.,Ltd. Hangzhou Branch Pledgor: HANGZHOU PINNET TECHNOLOGIES Co.,Ltd. Registration number: Y2024980020140 |