CN201038735Y - Locking and interlocking device for coal mine main draught fan and down-hole power supply - Google Patents
Locking and interlocking device for coal mine main draught fan and down-hole power supply Download PDFInfo
- Publication number
- CN201038735Y CN201038735Y CNU2007201015014U CN200720101501U CN201038735Y CN 201038735 Y CN201038735 Y CN 201038735Y CN U2007201015014 U CNU2007201015014 U CN U2007201015014U CN 200720101501 U CN200720101501 U CN 200720101501U CN 201038735 Y CN201038735 Y CN 201038735Y
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- CN
- China
- Prior art keywords
- power supply
- coal mine
- draught fan
- serially connected
- undermine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The utility model relates to a power supplying control device under coal mine, in particular to a wind and electricity closing device between the main draught fan of the coal mine and the undermine power supply, which solves the problem that closing interlocking device is lacked between the main draught fan of the prior coal mine and the undermine power supply line. The utility model comprises a shell which is internally positioned with a control circuit; tripping signal output terminals, current signal output terminals and a power supply wire incoming terminal are arrange on the shell; the control circuit comprises current relays which are serially connected between each pairs of current signal output terminals; the parallelly connected spur track of the normally closed contact which is connected with the power supply wire incoming terminal though a power switch, the serially connected spur track of a middle relay, the normally open contact of the middle relay which is parallelly connected with the two ends of the spur track, an alarming device, and the serially connected spur track of a return switch are serially connected with the normally open contact of the middle relay which is serially connected between the tripping signal output terminals. The utility model is simple and rational in structure, simple and convenient in operation, and good in use effect, which closes the operation states of the undermine power supply and the main draught fan so as to improve the safety factor of the undermine work environment.
Description
Technical field
The utility model relates to power supply control apparatus under a kind of coal mine, specifically is a kind of coal master's blower fan and underground power supply used fan stoppage breaker.
Background technology
Coal master's blower fan is the capital equipment that ventilates under the coal mine, will cause as its shutdown: fire damp gathers generation gas explosion, the fresh distinguished and admirable deficiency personnel that cause suffocate; And in its running, situations such as mechanical breakdown, electric fault, voltage ripple of power network all can cause the main air blower shutdown; At present; mainly monitor by the blower fan driver whether blower fan causes shutting down owing to breaking down; in time do not find that as the blower fan driver blower fan breaks down, will cause the unexpected blowing-out in down-hole, but because the supply line and the underground power supply used circuit of blower fan are not same supply lines; underground power supply used circuit is normal power supply still; cause the workman under unwitting situation, to continue to produce, under no wind condition, cause methane accumulation, cause personnel to suffocate; must cause gas explosion if any electric spark, cause casualties.
Summary of the invention
The utility model lacks locking and coupled system in order to solve between present coal master's blower fan and the underground power supply used circuit, can't ensure the problem of underground work personnel life security, and a kind of coal master's blower fan and underground power supply used fan stoppage breaker are provided.
The utility model is to adopt following technical scheme to realize: coal master's blower fan and underground power supply used fan stoppage breaker, the housing that comprises built-in control circuit, housing is provided with a pair of trip signal lead-out terminal, two pairs of current signal input terminals and a pair of electric power incoming line terminal, and described control circuit comprises and is series at every couple of current relay KI between the current signal input terminal respectively
1, KI
2The current relay KI that is connected with the electric power incoming line terminal through mains switch QS
1, KI
2Normally-closed contact KI
1-1, KI
2-1Parallel branch and the series arm of auxiliary relay KA; And the normally opened contact KA of the auxiliary relay KA in parallel with these branch road two ends
1, warning device HA, reset switch K series arm (warning branch road); Be series at the normally opened contact KA of the auxiliary relay KA between the trip signal lead-out terminal
2Reset switch K and mains switch QS are arranged on the housing.
During use, respectively with the current transformer TA in two pairs of current signal input terminals and the main air blower power supply high voltage cabinet
1, TA
2Secondary circuit series connection (described current transformer TA
1, TA
2Be existing equipment in the main air blower power supply high voltage cabinet), the electric power incoming line terminal links to each other with power supply, and the trip signal lead-out terminal is connected in the trip(ping) circuit of underground power supply used high-voltage board, normally moves current transformer TA as blower fan
1, TA
2Electric current output is arranged, current relay KI
1, KI
2Get electric adhesive, its normally-closed contact KI
1-1, KI
2-1Disconnect, disconnect auxiliary relay KA loop, auxiliary relay KA dead electricity, the normally opened contact KA of auxiliary relay KA
1, KA
2Disconnect, disconnect the trip(ping) circuit of warning branch road and underground power supply used high-voltage board; As current transformer TA
1, TA
2When no current output (being that blower fan is shut down) or output drop to certain value, current relay KI
1, KI
2Dead electricity, its normally-closed contact KI
1-1, KI
2-1Closure, conducting auxiliary relay KA loop, auxiliary relay KA gets electric, the normally opened contact KA of auxiliary relay KA
1, KA
2Closed, the trip(ping) circuit of triggering/conducting warning branch road and underground power supply used high-voltage board, thereby close automatically/cut off to underground power supply used circuit, and send alarm signal, notice underground work in time personnel note, at this moment, disconnects reset switch K and can remove warning, the reset switch K that closes again after troubleshooting finishes restPoses device.Coal master's blower fan and underground power supply used locking control have finally been realized.Wherein, the purpose that two pairs of current signal input terminals are set is in order to satisfy the requirement of existing electricity consumption standard.
Compared with prior art, the utility model is simple and reasonable for structure, and is easy and simple to handle, and result of use is good, carries out locking with underground power supply used with the main air blower operation conditions, improves underground work environmentAL safety coefficient.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model;
1,2,3,4-current signal input terminal among the figure:; 5,6-trip signal lead-out terminal; 7,8-electric power incoming line terminal.
Embodiment
Coal master's blower fan and underground power supply used fan stoppage breaker, the housing that comprises built-in control circuit, housing is provided with 5,6, two pairs of current signal input terminals 1,2,3,4 of a pair of trip signal lead-out terminal and a pair of electric power incoming line terminal 7,8, and described control circuit comprises the current relay KI that is series at respectively between every pair of current signal input terminal 1,2 and 3,4
1, KI
2The current relay KI that is connected with electric power incoming line terminal 7,8 through mains switch QS
1, KI
2Normally-closed contact KI
1-1, KI
2-1Parallel branch and the series arm of auxiliary relay KA; And the normally opened contact KA of the auxiliary relay KA in parallel with these branch road two ends
1, warning device HA, reset switch K series arm (warning branch road); Be series at the normally opened contact KA of the auxiliary relay KA between the trip signal lead- out terminal 5,6
2Reset switch K and mains switch QS are arranged on the housing.
During concrete enforcement, it is the current relay of DL-10 that current relay KI adopts model, and its setting current is 0.1-3A, and setting value is by the watt level decision of main air blower.
Claims (1)
1. coal master's blower fan and underground power supply used fan stoppage breaker, the housing that comprises built-in control circuit, it is characterized in that housing is provided with a pair of trip signal lead-out terminal (5,6), two pairs of current signal input terminals (1,2,3,4) and a pair of electric power incoming line terminal (7,8), described control circuit comprises and is series at every couple of current relay KI between the current signal input terminal respectively
1, KI
2The current relay KI that is connected with electric power incoming line terminal (7,8) through mains switch QS
1, KI
2Normally-closed contact KI
1-1, KI
2-1Parallel branch and the series arm of auxiliary relay KA; And the normally opened contact KA of the auxiliary relay KA in parallel with these branch road two ends
1, warning device HA, reset switch K series arm; Be series at the normally opened contact KA of the auxiliary relay KA between the trip signal lead-out terminal (5,6)
2Reset switch K and mains switch QS are arranged on the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201015014U CN201038735Y (en) | 2007-05-29 | 2007-05-29 | Locking and interlocking device for coal mine main draught fan and down-hole power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201015014U CN201038735Y (en) | 2007-05-29 | 2007-05-29 | Locking and interlocking device for coal mine main draught fan and down-hole power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201038735Y true CN201038735Y (en) | 2008-03-19 |
Family
ID=39211259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201015014U Expired - Fee Related CN201038735Y (en) | 2007-05-29 | 2007-05-29 | Locking and interlocking device for coal mine main draught fan and down-hole power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201038735Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101650021B (en) * | 2009-08-25 | 2011-05-04 | 广州粤能电力科技开发有限公司 | Primary air fan tripping set run back control method and system |
| CN101672130B (en) * | 2009-07-31 | 2012-01-25 | 上海颐坤自动化控制设备有限公司 | Code lock for coal mine switch maintenance |
| CN107884665A (en) * | 2017-11-28 | 2018-04-06 | 中国大唐集团科学技术研究院有限公司西北分公司 | Prevent the device and method of generator outlet voltage transformer turn-to-turn short circuit false tripping machine |
-
2007
- 2007-05-29 CN CNU2007201015014U patent/CN201038735Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672130B (en) * | 2009-07-31 | 2012-01-25 | 上海颐坤自动化控制设备有限公司 | Code lock for coal mine switch maintenance |
| CN101650021B (en) * | 2009-08-25 | 2011-05-04 | 广州粤能电力科技开发有限公司 | Primary air fan tripping set run back control method and system |
| CN107884665A (en) * | 2017-11-28 | 2018-04-06 | 中国大唐集团科学技术研究院有限公司西北分公司 | Prevent the device and method of generator outlet voltage transformer turn-to-turn short circuit false tripping machine |
| CN107884665B (en) * | 2017-11-28 | 2024-03-08 | 大唐西北(西安)电力试验研究院有限公司 | Device and method for preventing turn-to-turn short circuit of generator outlet voltage transformer from mistakenly tripping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 Termination date: 20100529 |