CN201417943Y - Explosion-proof power source lightning protection box - Google Patents
Explosion-proof power source lightning protection box Download PDFInfo
- Publication number
- CN201417943Y CN201417943Y CN2009203046622U CN200920304662U CN201417943Y CN 201417943 Y CN201417943 Y CN 201417943Y CN 2009203046622 U CN2009203046622 U CN 2009203046622U CN 200920304662 U CN200920304662 U CN 200920304662U CN 201417943 Y CN201417943 Y CN 201417943Y
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- lightning protection
- explosion
- lightning
- power source
- proof power
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Abstract
The utility model relates to a lightning protection technique, and particularly to an explosion-proof power source lightning protection box. The explosion-proof power source lightning protection box provided by the utility model not only can prevent lightning but also can ensure the safety of using environment. The key points of the technical solution are as follows: the explosion-proof power source lightning protection box comprises a box body and a lightning protection module; the box body totally seals the lightning protection module; the lightning protection module comprises three parallelbranches; and each parallel branch is composed of a pressure-sensitive resistor and a gas discharge tube which are connected in series. The explosion-proof power source lightning protection box provided by the utility model has the following beneficial effects: good lightning prevention effect, safe use and capacity for realizing remote monitoring. The explosion-proof power source lightning protection box is particularly suitable for the lightning prevention of the place which is inflammable and explosive.
Description
Technical field
The utility model relates to shocking preventing technology, relates to explosion-proof type power lightning protection case specifically.
Background technology
In some special inflammable and explosive places, should guarantee that as chemical plant, armory, gas station etc. the power consumption equipment safety utilization of electric power exempts from thunder disaster, guarantee environment for use safety again.Using traditional lightning rod to come lightning protection in these occasions is a kind of practice of science even danger close not very, the spark that produces in the time of may releasing because of lightning current sets off an explosion, also have some to be to use arrester to realize lightning protection, when lightning current arrives, light a fire by piezo-resistance, puncture the electrode of connection live wire and the gaps between electrodes of ground wire, make lightning current can release rapidly to greatly, the spark that produces when but possibility is because of the gap between breakdown electrode equally sets off an explosion, and is very dangerous.
The utility model content
Technical problem to be solved in the utility model is: propose a kind of explosion-proof type power lightning protection case that can lightning protection can guarantee environment for use safety again.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: explosion-proof type power lightning protection case, comprise casing and lightning-protection module, described casing seals lightning-protection module fully, described lightning-protection module comprises three parallel branches, and every parallel branch is put pipe by a piezo-resistance and a gas and connected and constitute.
Further, described lightning-protection module also comprises 3 trip gears, described 3 trip gears respectively with three corresponding series connection of parallel branch.
Further, described casing is an aluminium die casting casing, and casing is provided with the remote signalling port.
Described trip gear adopts the eutectic welding soldering to connect spring leaf and piezo-resistance one end.
The beneficial effects of the utility model are: lightning protection effect is good, safe in utilization, and can realize remote monitoring.
Description of drawings
Fig. 1 is the structural representation of embodiment.
Among the figure, 1 is casing, and 2 is piezo-resistance, and 3 put pipe for gas, and 4 is trip gear, and 5 are the remote signalling port.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
There is the deficiency of very big hazards in the utility model at use lightning rod or arrester to come lightning protection in the prior art in inflammable and explosive place, a kind of explosion-proof type power lightning protection case has been proposed, lightning-protection module is sealed in the casing, even producing spark can not work the mischief to environment for use yet, lightning-protection module is put by piezo-resistance and gas and is formed in parallel low residual voltage, no leakage current, Uc height after pipe is connected again.
Embodiment:
As shown in Figure 1, the explosion-proof type power lightning protection case in this example comprises casing 1 and lightning-protection module, and described casing 1 seals lightning-protection module fully.Casing 1 is the casing that adopts aluminium die casting to have EX (lightning protection safety certification), and is safe and reliable, can use under inflammable and explosive environment.The inner lightning-protection module of installing is put pipe 3 by the piezo-resistance 2 of 3 40KA/450V with the gas of 3 40KA/600V and is formed, and piezo-resistance 2 and gas are put and managed 3 and connect, and carry out the matrix parallel connection after the series connection again.Piezo-resistance 2 belongs to the votage limit type device, and advantage is that no afterflow, residual voltage are 2.5-3 times of starting resistor, is approximately 1125V-1350V, can protect the safety of power consumption equipment fully, but exists the shortcoming of leakage current, easy deterioration; Gas is put pipe 3 and is belonged to the switching mode device, and advantage is no leakage current, and residual voltage is exactly its firing voltage, and shortcoming is that afterflow is arranged, and can not directly be applied on the electrical network live wire; Adopt two kinds of device tandem compounds, coordinate mutual restriction mutually, given full play to the advantage of two kinds of devices, overcome the shortcoming that exists separately, can obtain high Uc, can obtain low residual voltage again.
Its operation principle is: whole lightning protection box device can be used between the live wire and ground wire of electrical network the inlet wire port being set on lightning protection box, directly carries out plug wire and can use, as the L termination live wire among the figure, PE termination ground wire; When no lightning current arrived, the pressure drop on the electrical network was mainly fallen at gas and is put on the pipe 3, and the firing voltage that it has a 600V therefore can conducting, therefore also leakage current.When lightning current acts on the electrical network, piezo-resistance 2 rapid conductings, high voltage also impels gas to put the pipe conducting, lightning current on the live wire is released to ground wire rapidly, piezo-resistance 2 is supported gas to put pipe 3 blow-outs to close, gas is put pipe 3 and is supported piezo-resistances 2 slow deteriorations, has so both obtained higher Uc, has also obtained the C level and has protected (≤1200V) level.Owing to adopted three pairs of piezo-resistances to put the in parallel of pipe with gas, total power has reached 120KA, under the lightning current of 100KA impacts, still can protect the safety of power consumption equipment, has reached the lightning protection capability of B level.
In addition; three trip gears 4 have also been designed; trip gear 4 adopts the eutectic welding soldering to connect spring leaf and piezo-resistance 2 one ends; put pipe 3 deteriorations or damage and can't operate as normal the time at piezo-resistance 2 or gas like this; low temperature scolding tin dissolves under high temperature action; disconnection is connected with electrical network; play the effect of safeguard protection; also on casing, be provided with remote signalling port 5; can connect supervising device at a distance, in case the dropout situation appears in the internal lighting protection module, signal changes; supervising device place at a distance will obtain alarm, and is very convenient.
Claims (4)
1. explosion-proof type power lightning protection case, it is characterized in that: comprise casing and lightning-protection module, described casing seals lightning-protection module fully, and described lightning-protection module comprises three parallel branches, and every parallel branch is put pipe by a piezo-resistance and a gas and is connected and constitute.
2. explosion-proof type power lightning protection case as claimed in claim 1 is characterized in that: described lightning-protection module also comprises 3 trip gears, described 3 trip gears respectively with three corresponding series connection of parallel branch.
3. explosion-proof type power lightning protection case as claimed in claim 2 is characterized in that: described trip gear adopts the eutectic welding soldering to connect spring leaf and piezo-resistance one end.
4. as any described explosion-proof type power lightning protection case of claim 1 to 3, it is characterized in that: described casing is an aluminium die casting casing, and casing is provided with the remote signalling port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203046622U CN201417943Y (en) | 2009-06-18 | 2009-06-18 | Explosion-proof power source lightning protection box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203046622U CN201417943Y (en) | 2009-06-18 | 2009-06-18 | Explosion-proof power source lightning protection box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201417943Y true CN201417943Y (en) | 2010-03-03 |
Family
ID=41794372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203046622U Expired - Fee Related CN201417943Y (en) | 2009-06-18 | 2009-06-18 | Explosion-proof power source lightning protection box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201417943Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683247A (en) * | 2012-09-12 | 2014-03-26 | 中国铁道科学研究院通信信号研究所 | Power lighting protection box |
-
2009
- 2009-06-18 CN CN2009203046622U patent/CN201417943Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683247A (en) * | 2012-09-12 | 2014-03-26 | 中国铁道科学研究院通信信号研究所 | Power lighting protection box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100303 Termination date: 20180618 |