CN208571558U - The lightning protection device of tower crane before hydroelectric dam - Google Patents
The lightning protection device of tower crane before hydroelectric dam Download PDFInfo
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- CN208571558U CN208571558U CN201820630682.8U CN201820630682U CN208571558U CN 208571558 U CN208571558 U CN 208571558U CN 201820630682 U CN201820630682 U CN 201820630682U CN 208571558 U CN208571558 U CN 208571558U
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- tower crane
- lightning
- lightning protection
- protection device
- surge
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Abstract
The utility model discloses a kind of lightning protection devices of tower crane before hydroelectric dam; it includes direct lighting stroke protective device and the secondary lightning protection device of control system; the direct lighting stroke protective device includes 4 contour lightning rods for being set to tower crane surrounding, and 4 lightning rods are in a center of symmetry with the tower crane；The secondary lightning protection device of control system includes: to be set to the low three phase mains surge protecting box at cabinet, the three phase mains surge protection module being set at frequency conversion tank, the DC power supply surge protector and AC power source surge protector being set at middle control cabinet.Large-scale tower crane is by lightning stroke before solving the problems, such as hydroelectric dam, it is therefore prevented that lightning stroke improves tower crane reliability of operation to the damage of the mechanically and electrically system of large-scale tower crane before hydroelectric dam and to the injury of personnel.
Description
Technical field
The utility model relates to power station lightning-protection engineering fields, and in particular to large-scale tower crane before a kind of hydroelectric dam
The secondary lightning protection of lightning protection and its control system.
Background technique
On the building sites such as power station, the position of large-scale tower crane is usually located at all construction equipments and waterwork
The highest point of object, thus be highly susceptible to be struck by lightning, the power stations such as domestic Goupitan, silk screen, Xi Luodu, Burner zone, Da Gang Mountain are built
If the large-scale tower crane in building site repeatedly by lightning stroke, causes electrical, communication and control system equipment damage, tower crane is thereby resulted in
It shuts down and influences to construct, additionally can cause personal injury to tower crane operator.It is struck by lightning in order to prevent to large-scale before hydroelectric dam
The damage of the mechanically and electrically system of tower crane and injury to personnel improve tower crane reliability of operation, need hydroelectric dam
The lightning-protection method of preceding large-scale tower crane.Less, Er Qiefang is studied about the lightning protection of large-scale tower crane before hydroelectric dam at present
Method is all not perfect.
Utility model content
The utility model overcomes the deficiencies in the prior art, provides the lightning protection of tower crane before a kind of hydroelectric dam of lightning protection effect
Protective device.
In view of the above problem of the prior art, according to one aspect disclosed by the utility model, the utility model is used
Following technical scheme:
The lightning protection device of tower crane before a kind of hydroelectric dam, it includes that direct lighting stroke protective device and control system are secondary anti-
Thunder device, the direct lighting stroke protective device include 4 contour lightning rods for being set to tower crane surrounding, 4 lightning rods with
The tower crane is in a center of symmetry；The secondary lightning protection device of control system includes: to be set to the low three phase mains surge at cabinet
Guard box, the three phase mains surge protection module being set at frequency conversion tank, the DC power supply surge protection being set at middle control cabinet
Device, DB9/RS232 interface surge protector and TNC interface antenna feeder lightning protection device.
In order to which the utility model is better achieved, further technical solution is:
Another embodiment according to the present utility model also sets up AC power source surge protector at the middle control cabinet.
The height of another embodiment according to the present utility model, the tower crane meets: h1≤h0=h-D/7P, wherein h
It is the distance between lightning rod, h for the height of lightning rod, D0For the minimum point height of lightning rod protection scope top edge, h1For tower
The height hung, P influence coefficient for height.
The utility model may also is that
Another embodiment according to the present utility model, the low installation side with the three phase mains surge protecting box at cabinet
Method:
1. designing suitable installation site by the power supply that need to install three-phase surge protecting box to be installed；
2. needing installation site to install plastic expansion screw according to the hole sizes of guard box using electric hand drill；
3. three-phase alternating current surge guard box is mounted on plastic expansion screw and is fastened and fixed screw；
4. the three-phase phase line and zero of three-phase surge protecting box and air switch and air switch and protector access point is accordingly
Multiply single condctor is respectively adopted to be reliably connected；
5. the ground line of three-phase surge protecting box is reliably connected on grounding point using multiply single condctor.
Another embodiment according to the present utility model, the installation side of the three phase mains surge protection module at frequency conversion tank
Method includes:
1. designing suitable installation site by the power supply that need to install three phase mains surge protection module to be installed；
2. needing installation site to install guide rail according to the hole sizes of guide rail using electric hand drill；
3. three phase mains surge protection module is mounted on guide rail and is fastened and fixed screw；
4. the three-phase phase line and zero of three phase mains surge protection module and air switch and air switch and protection access point
Multiply single condctor is mutually respectively adopted to be reliably connected；
5. the ground line of three phase mains surge protection module should be reliably connected on grounding point using multiply single condctor.
Another embodiment according to the present utility model, the middle installation method for controlling the DC power supply surge protector at cabinet
Include:
1. designing suitable installation site by the power supply that need to install DC power supply surge protector to be installed；
2. needing installation site to install guide rail according to the hole sizes of guide rail using electric hand drill；
3. DC power supply surge protector is mounted on guide rail and is fastened and fixed screw；
4. anode, the cathode of DC power supply surge protector and air switch and air switch and protection access point should be distinguished
It is reliably connected using multiply single condctor；
5. the ground line of DC power supply surge protector should be reliably connected on grounding point using multiply flexible circuit conductor.
Another embodiment according to the present utility model, the installation method of DB9/RS232 interface surge protector:
1. correspondence with foreign country signal wire line to be connected to the input terminal of DB9/RS232 interface surge protector；
2. the output of DB9/RS232 interface surge protector is terminated to PLC signal circuit；
3. should be using not less than 4mm by the ground terminal on DB9/RS232 interface surge protector panel2Double-colored multiply
Flexible circuit conductor is reliably connected on grounding point.
Another embodiment according to the present utility model, the installation method of TNC interface antenna feeder lightning protection device:
1. external antenna feeder signal wire to be connected to the input terminal of TNC interface surge protector；
2. the output of TNC interface surge protector is terminated to MDS radio signals circuit；
3. by the ground terminal on TNC interface surge protector surface and earth mat good connection.
4. the ground connection of TNC interface antenna feeder lightning protection device should be reliably connected on grounding point using multiply flexible circuit conductor.
Compared with prior art, the beneficial effects of the utility model first is that:
The lightning protection device of tower crane, solves large-scale tower crane before hydroelectric dam before a kind of hydroelectric dam of the utility model
The problem of by lightning stroke, it is therefore prevented that lightning stroke is to the damage of the mechanically and electrically system of large-scale tower crane before hydroelectric dam and to personnel
Injury, improve tower crane reliability of operation.The utility model considers direct lightning strike protection simultaneously and control system is secondary anti-
Thunder, scheme is more perfect, safe and reliable to the lightning protection of large-scale tower crane before hydroelectric dam.
Detailed description of the invention
Illustrate present specification embodiment or technical solution in the prior art in order to clearer, it below will be to embodiment
Or attached drawing needed in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the reference to embodiments some in present specification, for those skilled in the art, what is do not made the creative labor
In the case of, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the protection scope main view of lightning rod in the protection of the utility model direct lightning strike；
Fig. 2 is the protection scope top view of lightning rod in the protection of the utility model direct lightning strike；
Fig. 3 is that three-phase alternating current surge guard box installs wiring schematic diagram in the secondary lightning protection of the utility model control system；
Fig. 4 is that three phase mains surge protection module installs wiring schematic diagram in the secondary lightning protection of the utility model control system；
Fig. 5 is that DC lightning prevention module installs wiring schematic diagram in the secondary lightning protection of the utility model control system；
Fig. 6 is DB9/RS232 interface surge protector installation wiring signal in the secondary lightning protection of the utility model control system
Figure；
Fig. 7 is that TNC interface antenna feeder lightning protection device installs wiring schematic diagram in the secondary lightning protection of the utility model control system.
Specific embodiment
The utility model is described in further detail below with reference to embodiment, but the embodiments of the present invention is not
It is limited to this.
The lightning protection of large-scale tower crane is divided into two parts before hydroelectric dam, and first part is the protection of direct lightning strike, and second
It is divided into the secondary lightning protection of control system.It is specific as shown in Figure 1 and Figure 2, the lightning protection device of tower crane before a kind of hydroelectric dam, it is wrapped
Direct lighting stroke protective device and the secondary lightning protection device of control system are included, the direct lighting stroke protective device includes 4 and is set to tower crane 2 four
The contour lightning rod Isosorbide-5-Nitrae lightning rod 1 in week is in a center of symmetry with the tower crane 2；The height of the tower crane 2 meets: h1
≤ h0=h-D/7P, wherein h is the height of lightning rod, D is the distance between lightning rod, h0 is lightning rod protection scope upper edge
The minimum point height of edge, h1 is the height of tower crane 2, P is that height influences coefficient；To avoid tower crane not by the infringement of direct lightning strike.
The secondary lightning protection device of control system includes: to be set to the low three phase mains surge protecting box at cabinet, setting
Three phase mains surge protection module at frequency conversion tank, the DC power supply surge protector being set at middle control cabinet and AC power source
Surge protector also sets up DB9/RS232 interface surge protector and TNC interface antenna feeder lightning protection device at middle control cabinet.
DGBS-IV three-phase alternating current surge guard box, DGBS-IV three-phase alternating current surge can be used in three phase mains surge protecting box
Guard box is used for the thunder and lightning and surge protection in three phase mains circuit；BY4-80/4-385 can be used in three phase mains surge protection module
Three phase current lightning protection module, BY4-80/4-385 three phase current lightning protection module are used for the lightning protection of AC power source control loop, direct current
DGBZ-II DC lightning prevention module can be used in power surge protector, and DGBZ-II DC lightning prevention module is used for DC power control
The lightning protection in circuit, DB9/RS232 interface surge protector, TNC interface antenna feeder lightning protection device are used for the thunder and lightning and wave of signal circuit
Gush protection.
Fig. 3 is that three-phase alternating current surge guard box installs wiring schematic diagram, and the thunder and lightning and surge for three phase mains circuit are protected
Shield, the low installation method with the three phase mains surge protecting box at cabinet:
1. designing suitable installation site by the power supply that need to install three-phase surge protecting box to be installed；
2. needing installation site to install plastic expansion screw according to the hole sizes of guard box using electric hand drill；
3. three-phase alternating current surge guard box is mounted on plastic expansion screw and is fastened and fixed screw；
4. the three-phase phase line and zero of three-phase surge protecting box and air switch (32A) and air switch and protector access point
10mm is accordingly respectively adopted2Yellowish green red and black multiply single condctor be reliably connected；
5. the ground line of three-phase surge protecting box uses 10mm2Yellow and green multiply single condctor be reliably connected ground connection
Point on.
Fig. 4 is that three phase mains surge protection module installs wiring schematic diagram, for the lightning protection of AC power source control loop, is become
The installation method of three phase mains surge protection module at frequency cabinet includes:
1. designing suitable installation site by the power supply that need to install three phase mains surge protection module to be installed；
2. needing installation site to install guide rail according to the hole sizes of guide rail using electric hand drill；
3. three phase mains surge protection module is mounted on guide rail and is fastened and fixed screw；
4. the three-phase phase line and zero of three phase mains surge protection module and air switch and air switch and protection access point
6mm is mutually respectively adopted2Yellowish green red and black multiply single condctor be reliably connected；
5. the ground line of three phase mains surge protection module should use 6mm2Yellow and green multiply single condctor reliably connect
It is connected on grounding point.
Fig. 5 is that DC lightning prevention module installs wiring schematic diagram, for the lightning protection in DC power control circuit, at middle control cabinet
The installation method of DC power supply surge protector includes:
1. designing suitable installation site by the power supply that need to install DC power supply surge protector to be installed；
2. needing installation site to install guide rail according to the hole sizes of guide rail using electric hand drill；
3. DC power supply surge protector is mounted on guide rail and is fastened and fixed screw；
4. anode, the cathode of DC power supply surge protector and air switch and air switch and protection access point should be distinguished
Using 4mm2Red and black multiply single condctor be reliably connected；
5. the ground line of DC power supply surge protector should use 4mm2Double-colored multiply flexible circuit conductor be reliably connected ground connection
Point on.
Fig. 6 is that DB9/RS232 interface surge protector installs wiring schematic diagram, and the thunder and lightning and surge for signal circuit are protected
Shield, the installation method of DB9/RS232 interface surge protector:
1. correspondence with foreign country signal wire line to be connected to the input terminal of DB9/RS232 interface surge protector；
2. the output of DB9/RS232 interface surge protector is terminated to PLC signal circuit；
3. should be using not less than 4mm by the ground terminal on DB9/RS232 interface surge protector panel2Double-colored multiply
Flexible circuit conductor is reliably connected on grounding point.
Fig. 7 is that TNC interface antenna feeder lightning protection device installs wiring schematic diagram, for the thunder and lightning and surge protection of signal circuit,
The installation method of TNC interface antenna feeder lightning protection device:
1. external antenna feeder signal wire to be connected to the input terminal of TNC interface surge protector；
2. the output of TNC interface surge protector is terminated to MDS radio signals circuit；
3. by the ground terminal on TNC interface surge protector surface and earth mat good connection；
4. the ground connection of TNC interface antenna feeder lightning protection device should be using not less than 4mm2Double-colored multiply flexible circuit conductor be reliably connected
On grounding point.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with it is other
The difference of embodiment, the same or similar parts in each embodiment cross-reference.
" one embodiment " for being spoken of in the present specification, " another embodiment ", " embodiment ", etc., refer to tying
Specific features, structure or the feature for closing embodiment description include at least one embodiment described in the application generality
In.It is not centainly to refer to the same embodiment that statement of the same race, which occur, in multiple places in the description.Appoint furthermore, it is understood that combining
When one embodiment describes a specific features, structure or feature, to be advocated be realized in conjunction with other embodiments it is this
Feature, structure or feature are also fallen in the scope of the utility model.
Although reference be made herein to the utility model is described in multiple explanatory embodiments of the utility model, still,
It should be understood that those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations
It will fall within scope and spirit disclosed in the present application.More specifically, it is disclosed and the scope of the claims in the application
It is interior, can building block to theme combination layout and/or layout carry out a variety of variations and modifications.In addition to building block and/
Or outside the variations and modifications of layout progress, to those skilled in the art, other purposes also be will be apparent.
Claims (3)
1. the lightning protection device of tower crane before a kind of hydroelectric dam, it is characterised in that including direct lighting stroke protective device and control system
Secondary lightning protection device, the direct lighting stroke protective device include 4 contour lightning rods (1) for being set to tower crane (2) surrounding, and 4
The lightning rod (1) is in a center of symmetry with the tower crane (2)；The secondary lightning protection device of control system includes: to be set to low match
Three phase mains surge protecting box at cabinet, the three phase mains surge protection module being set at frequency conversion tank are set at middle control cabinet
DC power supply surge protector, DB9/RS232 interface surge protector and TNC interface antenna feeder lightning protection device.
2. the lightning protection device of tower crane before hydroelectric dam according to claim 1, it is characterised in that at the middle control cabinet
Also set up AC power source surge protector.
3. the lightning protection device of tower crane before hydroelectric dam according to claim 1, it is characterised in that the tower crane (2)
Height meets: h1≤h0=h-D/7P, wherein h is the height of lightning rod, D is the distance between lightning rod, h0For lightning conductor protection
The minimum point height of range top edge, h1It is that height influences coefficient for the height of tower crane (2), P.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820630682.8U CN208571558U (en) | 2018-04-28 | 2018-04-28 | The lightning protection device of tower crane before hydroelectric dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820630682.8U CN208571558U (en) | 2018-04-28 | 2018-04-28 | The lightning protection device of tower crane before hydroelectric dam |
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| Publication Number | Publication Date |
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| CN208571558U true CN208571558U (en) | 2019-03-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108390348A (en) * | 2018-04-28 | 2018-08-10 | 中国三峡建设管理有限公司 | The lightning protection device of tower crane before hydroelectric dam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108390348A (en) * | 2018-04-28 | 2018-08-10 | 中国三峡建设管理有限公司 | The lightning protection device of tower crane before hydroelectric dam |
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