CN103174461A - Intelligent anti-explosive interlocking device - Google Patents
Intelligent anti-explosive interlocking device Download PDFInfo
- Publication number
- CN103174461A CN103174461A CN2011104624636A CN201110462463A CN103174461A CN 103174461 A CN103174461 A CN 103174461A CN 2011104624636 A CN2011104624636 A CN 2011104624636A CN 201110462463 A CN201110462463 A CN 201110462463A CN 103174461 A CN103174461 A CN 103174461A
- Authority
- CN
- China
- Prior art keywords
- alarm device
- trigger alarm
- module
- interlock
- explosive
- 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.)
- Pending
Links
Images
Landscapes
- Alarm Systems (AREA)
Abstract
The invention relates to an intelligent anti-explosive interlocking device which comprises a trigger alarm device and a receiving interlocking device. The trigger alarm device is correspondingly opened and closed by adoption of a special tool and interlocked on a seal cover screw, and the receiving interlocking device is arranged in a power distribution room or a control room. A controlled circuit is monitored through the trigger alarm device, and after a controlled electrical appliance is uncovered, radio-frequency signals are sent out, and voices including high voltage, a danger, a power failure and electricity testing are sent out simultaneously. The received radio-frequency signals are converted into voltage signals through a receiving module in the receiving interlocking device so as to instruct an anti-explosive power switch and an intrinsically-safe power switch to connect electricity or disconnect electricity, and lockout is carried out after electricity disconnection. The intelligent anti-explosive interlocking device has the remarkable advantages of high intelligent degree, stable anti-explosive performance, sensitive lockout motion, sonorous alarm voice, wide coverage and explicit alarm places and the like.
Description
Technical field
The present invention relates to a kind of flame proof interlock, particularly a kind of flame proof safety type interlock that adopts intellectuality, modular technology to ensure the downhole coal mine Electrical Safety, belong to the coal mine equipment safety technics.
Background technology
The traditional safety measure of the explosion-proof electric apparatus that downhole coal mine adopts is to adopt explosion-resistant enclosure, intrinsicallysafecircuit and various protective device.Operation is for many years put into practice and is shown, these safety measures are to preventing that electric fire from igniting, igniting mine gas and ensureing that life has played safely important function.Yet the imperfection of product design has certain limitation, exists very big potential safety hazard, and these measures can not be controlled the generation of the gas explosion accident that fault electricity fire causes.the flame-proof mine explosion-proof electric apparatus is electric equipment indispensable under coal mine, at present the blast resistant construction form of China's explosion-proof electric apparatus continues 20th century 60-70 age former Soviet Union technology always, be wire connection cavity and main chamber two chamber flame proof forms, main chamber has the mechanical latching structure, wire connection cavity is without any mechanical electric closedown structure, because the place to use is explosive geographical environment, being uncapped, it checks, maintenance and " safety regulations in coal mine " the 445th clear down-hole must not hotline maintenance when changing load, the resettlement electric equipment, maintenance, the resettlement electric equipment is necessary: 1, cut off the electricity supply, 2, check gas density (lower than 1%), 3, electrical verification (appropriate view on politics is without electricity), 4, to conductive discharge.Only just allow to open the electric equipment flameproof enclosure lower than 1% the time in gas density.But in the coal production process, be subjected to the restriction of existence conditions and quality of workers situation, down-hole electrician's maloperation or operate against regulations happens occasionally, and not only causes the life injury, and the accident that livewire work for several times produces the electric spark actuation gas also occurs.As on May 13rd, 2003, the gas explosion accident that Mining Group Lu Ling down-hole, the Huaibei, Anhui Province two levels occur was opened the operation of starter wire connection cavity because the workman is charged exactly, produces the electric spark actuation gas, causes 86 people dead.Deep analysis electric spark causes the reason of gas explosion and life electric shock casualty accident, mainly has the problem of two aspects: 1, China's coal-mine underground labour lacks moral fiber, and awareness of safety is not strong, has the phenomenon of operating against regulations of maloperation; 2, also there is major defect in the China's coal-mine down-hole in the flame-proof mine explosion-proof electric apparatus anti-explosion safety performance of use.The flame-proof type explosion-proof electrical equipment that China now uses, explosion-proof chamber has mechanical locking device, does not cut off the electricity supply and just not opens; But just there is no blocking device in wire connection cavity, only have a notice board, can open wire connection cavity yet under charged condition.Just because of the flame-proof mine explosion-proof electric apparatus exists this defective, just make the individual work personnel that the possibility of violating the regulations or maloperation band electric-opening wire connection cavity is arranged.Thus, stipulate in the GB3836.1-2010 standard: be the interlock that keeps special-purpose type of explosion proof construc tion to use, its structure should guarantee that non-special tool can not remove its effect easily, and be marked with 1, screwdriver, tweezers or similar instrument, interlock was lost efficacy; 2, the interlocking of uncapping can be realized the rear outage of uncapping, and after outage, the interlock such as locking (locking: as can not to this power devices), also can realize relevant warning function in case of necessity as required simultaneously.According to standard-required, the manufacturer of explosion-proof electric apparatus has dropped into certain human and material resources, flame proof function to explosion-proof electric apparatus has been carried out bold exploration, extension, basically satisfied in the GB3836.1-2010 standard about its structure to guarantee that non-special tool can not remove the requirement of its effect easily, some explosion-proof electric apparatus products have also been realized: the high request that also can realize simultaneously as required in case of necessity relevant warning function.But these products often all do not reach tight requirement safe against all possibilities, namely allow to send alarm signal, and its signal volume is also minimum, can not make alarm signal in time be communicated to related fields, and make fast reaction.At present, progressively product reliability is good, easy to maintenance, high-power, the future development of the high and low pollution low-power consumption of degree of intelligence to pursuing from traditional user demand of satisfying for the explosion-proof electric apparatus industry, and therefore intelligent, modularization is the main direction of explosion-proof electric apparatus.
Summary of the invention
For strengthening explosion-proof electric apparatus flame proof function, the invention provides a kind of intelligent flame proof interlock.Realize all standing, the thin division, and the locking setting is more accurately sensitive, reliable and stable, reports to the police more timely, clear.
To achieve these goals, the present invention implements by the following technical programs: a kind of intelligent flame proof interlock, it comprises the trigger alarm device and receives interlock.The trigger alarm device adopts the corresponding switching of special tool, and trigger alarm device interlocking is on the capping screw; Receiving interlock is arranged in power distribution room or control room.
Described trigger alarm device comprises: trigger module, audio alert module;
Described reception interlock comprises: transformer, switch power module, isolation module, receiver module, solid-state relay, passive relay;
In described trigger alarm device, the output of trigger module is connected with the audio alert module, and sends the radiofrequency signal of uncapping, release reset signal, warning voice by the contact displacement;
In described reception interlock, the power input of receiver module is provided with transformer, switch power module, isolation module successively, the output of receiver module is provided with flame proof output control circuit and essential safe type control loop, the flame proof output control circuit is comprised of isolation module, solid-state relay, it directly controls the flame proof power switch, the essential safe type control loop is comprised of passive relay, and it is exported, and one or more is passively opened, break signal is controlled the intrinsically safe power supply switch.
Described trigger alarm device is many and can be divided into some groups, group with organize between radiofrequency signal, the reset signal sent different;
The face version of described receiver module is provided with many indicator lamps, and bright, radiofrequency signal, the reset signal of being sent by corresponding one group of trigger alarm device of going out of every indicator lamp are controlled.
The present invention is by monitoring, the detection of trigger alarm device enforcement to institute's control electrical equipment, when find institute's control electric equipment run into uncap after, send immediately the radiofrequency signal of setting, simultaneously the audio alert module is sent the voice up to " high pressure, danger, please have a power failure, electrical verification " more than 70 decibels, sends the reset signal of unlocking after capping.
The present invention by receive in interlock receiver module with the different radio frequency signal that receives be converted to varying voltage signal instruction flame proof power switch, intrinsically safe power supply switch circuit breaking or electric, locking after outage.
Compare with traditional flame proof interlock, beneficial effect of the present invention is: its intellectuality degree of holding is high, explosion insulation performance is stable, block action is sensitive and accurate, clear loud and clear, the broad covered area of alarm voice, place of alarm segmentation clearly wait remarkable advantage.
Description of drawings
Fig. 1 is trigger alarm device schematic diagram of the present invention;
Fig. 2 is that the present invention receives the interlock schematic diagram.
In Fig. 1 and Fig. 2: 1 trigger module, 2 transmitting antennas, 3 audio alert modules, 4 constant open contacts, 5 transformers, 6 switch power modules, 7 isolation modules, 8 receiver modules, 9 passive relays, 10 isolation modules, 11 intrinsically safe power supply switches, 12 solid-state relays, 13 flame proof power switches, 14 constant open contacts, 15 constant close contacts, 16 reception antennas, 17 constant open contacts, 18 indicator lamps.
The specific embodiment
As shown in Figure 1, the trigger alarm device is comprised of trigger module 1, audio alert module 3, trigger module 1 is provided with transmitting antenna 2, and the input of trigger module 1 is dc source, and audio alert module 3 is sent instruction by the displacement signal on trigger module 1 and made the closed warning of constant open contact 4.The trigger alarm device is many, and can be divided into some groups, and radiofrequency signal, the reset signal sent between group and group are different.
As shown in Figure 2, receiving interlock is comprised of transformer 5, switch power module 6, isolation module 7, receiver module 8, passive relay 9, isolation module 10, intrinsically safe power supply switch 11, solid-state relay 12, flame proof power switch 13.The power input of receiver module 8 is provided with transformer 5, switch power module 6, isolation module 7 successively.The output of receiver module 6 is provided with flame proof output control circuit and essential safe type control loop, and the flame proof output control circuit is comprised of isolation module 10, solid-state relay 12, and it directly controls flame proof power switch 13; The essential safe type control loop is comprised of passive relay 9, and it is passively opened to export, break signal form control intrinsically safe power supply switch 11.The face version of receiver module 6 is provided with many indicator lamps 18, and every indicator lamp corresponds respectively to a group in the trigger alarm device.
The transformer 5 that receives in interlock can be transformed into the 220V alternating voltage with 127V, 380V, 660V, 1140V alternating voltage; Switch power module 6 can change the 220V alternating voltage that conversion from transformer 5 comes into the 12V DC voltage again; Isolation module 7 can be made the isolation response to short trouble in the loop bus that receives interlock; Isolation module 10 is arranged on the front end of duplexure, it is transformed into the 3V DC voltage for the action of constant open contact 14 in solid-state relay 12 with the 12V DC voltage, simultaneously when thereafter flame proof output control circuit is short-circuited, isolation module 10 can be with flame proof output control circuit and Bus isolation, guarantee that the essential safe type control loop can work, after fault was got rid of, it is normal that isolation module 10 recovers automatically, automatically resumes work with the flame proof output control circuit of Bus isolation.
The present invention can be by monitoring, the detection of many groups trigger alarm device enforcement to electrical equipment that multiple location is controlled.In actual use, the form of structure that the trigger alarm device can not be opened with non-special tool is interlocked on the screw of electrical equipment capping, when finding that wherein institute's control electric equipment at a position is uncapped inspection, maintenance and replacing load, contact in the trigger alarm device at this position, place in trigger module 1 is subjected to displacement, emitter in the trigger alarm device is exported the radiofrequency signal that this position is set immediately, and be transported to transmitting antenna 2 by feeder line (cable), radiate with the electromagnetic wave form by transmitting antenna 2.Meanwhile, trigger module 1 sends close command to constant open contact 4, and audio alert module 3 is sent the voice up to " high pressure, danger, please have a power failure, electrical verification " more than 70 decibels, sends the radiofrequency signal that resets of unlocking after capping.
the receiver module 8 that receives in interlock is converted to varying voltage signal with the different radio frequency signal that receives, amplify through AGC, disturb and suppress, the bandpass filter frequency-selecting, improve signal to noise ratio, further improve anti-interference in comparator, pass through again integrator, Schmidt trigger, last exit point demodulates frequency and also carries out frequency-selecting through decoding circuit for the former modulation signal of setting hertz, when only having centre frequency when certain indicator lamp 18 inside circuits self on the frequency of input signal and receiver module 8 consistent, this indicator lamp 18 is bright, and circuit output low level, otherwise output high level.When circuit output low level or high level, constant open contact 14 on solid-state relay 12, the constant close contact 15 on passive relay 9, constant open contact 17 leave or close, thereby make flame proof power switch 13,11 outages of intrinsically safe power supply switch or get electric, locking after outage, maintenance finishes back light goes out, and line related is opened.Uncapping and checking or whether maintenance and maintenance finish in the clear and equipment loop that learn particularly which position of the indicator lamp 18 that the staff just can be by on receiver module 8 panels like this, realizes thus the flame proof, explosion-proof of people, machine duality.
Claims (4)
1. intelligent flame proof interlock, it comprises the trigger alarm device and receives interlock, it is characterized in that the trigger alarm device adopts that special tool is corresponding to be opened and closed, and trigger alarm device interlocking is on the capping screw; Receiving interlock is arranged in power distribution room or control room.
2. intelligent flame proof interlock according to claim 1, it is characterized in that the trigger alarm device is comprised of trigger module, audio alert module, receive interlock and formed by transformer, switch power module, isolation module, receiver module, solid-state relay, passive relay.
3. intelligent flame proof interlock according to claim 1 and 2, is characterized in that the trigger alarm device can send the radiofrequency signal of uncapping, release reset signal, warning voice.
4. intelligent flame proof interlock according to claim 1 and 2, is characterized in that the trigger alarm device can be set to a plurality of, but and used aloned or be used in combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104624636A CN103174461A (en) | 2011-12-26 | 2011-12-26 | Intelligent anti-explosive interlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104624636A CN103174461A (en) | 2011-12-26 | 2011-12-26 | Intelligent anti-explosive interlocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103174461A true CN103174461A (en) | 2013-06-26 |
Family
ID=48634594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104624636A Pending CN103174461A (en) | 2011-12-26 | 2011-12-26 | Intelligent anti-explosive interlocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103174461A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594942A (en) * | 2013-10-18 | 2014-02-19 | 濮阳市正一恒业机械电子有限公司 | Oil-field field-operation security isolation power supply device and application method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2046153U (en) * | 1988-03-18 | 1989-10-18 | 王怀旭 | Small mine methane alarm and current breaking instrument |
| CN2603465Y (en) * | 2003-02-18 | 2004-02-11 | 王宏杰 | Wireless alarm for preventing high-voltage transmission line from being cut illegally |
| CN2651791Y (en) * | 2003-08-10 | 2004-10-27 | 中国矿业大学 | Passenger and conveyer linked controller in declined lane of coal mine |
| CN201003413Y (en) * | 2007-01-23 | 2008-01-09 | 包头奥普德电子科技有限公司 | Down-hole safe alarming and personnel management device for coal mine |
| CN101256705A (en) * | 2008-03-31 | 2008-09-03 | 王炳国 | Equipment control system alarming device with voice and remote prompting control |
| CN101581932A (en) * | 2009-06-23 | 2009-11-18 | 北京旺斯达科技有限公司 | Coal mine safety monitoring system |
| CN101806228A (en) * | 2010-02-01 | 2010-08-18 | 南京紫淮矿用电子高科技有限公司 | Coal bed gas radio frequency spectrum direction finding early warning system |
| CN202451220U (en) * | 2011-12-26 | 2012-09-26 | 盐城中煤亚太机电设备制造有限公司 | Intelligent anti-explosive interlocking device |
-
2011
- 2011-12-26 CN CN2011104624636A patent/CN103174461A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2046153U (en) * | 1988-03-18 | 1989-10-18 | 王怀旭 | Small mine methane alarm and current breaking instrument |
| CN2603465Y (en) * | 2003-02-18 | 2004-02-11 | 王宏杰 | Wireless alarm for preventing high-voltage transmission line from being cut illegally |
| CN2651791Y (en) * | 2003-08-10 | 2004-10-27 | 中国矿业大学 | Passenger and conveyer linked controller in declined lane of coal mine |
| CN201003413Y (en) * | 2007-01-23 | 2008-01-09 | 包头奥普德电子科技有限公司 | Down-hole safe alarming and personnel management device for coal mine |
| CN101256705A (en) * | 2008-03-31 | 2008-09-03 | 王炳国 | Equipment control system alarming device with voice and remote prompting control |
| CN101581932A (en) * | 2009-06-23 | 2009-11-18 | 北京旺斯达科技有限公司 | Coal mine safety monitoring system |
| CN101806228A (en) * | 2010-02-01 | 2010-08-18 | 南京紫淮矿用电子高科技有限公司 | Coal bed gas radio frequency spectrum direction finding early warning system |
| CN202451220U (en) * | 2011-12-26 | 2012-09-26 | 盐城中煤亚太机电设备制造有限公司 | Intelligent anti-explosive interlocking device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594942A (en) * | 2013-10-18 | 2014-02-19 | 濮阳市正一恒业机械电子有限公司 | Oil-field field-operation security isolation power supply device and application method |
| CN103594942B (en) * | 2013-10-18 | 2016-02-10 | 濮阳市正一恒业机械电子有限公司 | Oil field field work Secure isolation supply unit and application process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205941759U (en) | Arc light protective device | |
| CN204130930U (en) | A kind of remote operation controls movable switching cabinet | |
| CN102868104A (en) | Low-voltage distribution cabinet with pre-alarm device | |
| CN205246133U (en) | A intelligent monitoring device for joining in marriage power -grid switch cabinet | |
| CN105119246B (en) | Arc light protection system | |
| CN202451220U (en) | Intelligent anti-explosive interlocking device | |
| CN109347068A (en) | A kind of switchgear end flame proection | |
| CN103174461A (en) | Intelligent anti-explosive interlocking device | |
| CN105244854B (en) | A kind of electric arc light protection method with 360 degree of omnidirectional's monitorings and NFC monitoring functions | |
| CN205092661U (en) | High tension switchgear remote monitering system | |
| CN205246134U (en) | Power -grid switch is intelligent monitoring device for cabinet | |
| CN111707913A (en) | Partial discharge detection device of power switch cabinet | |
| CN204104029U (en) | A kind of for the fool proof visual device of switch cubicle | |
| CN202929096U (en) | Inductive high-voltage live detection device | |
| CN203151230U (en) | Mine explosive-proof and intrinsically-safe type vacuum feed switch | |
| CN207351939U (en) | A kind of micro- water density on-line monitoring system of sulfur hexafluoride gas | |
| CN104464188A (en) | Alarm device for electrification door opening of distribution box | |
| CN102735989A (en) | Mining wireless power failure indicator | |
| CN104377664B (en) | Mesolow arc light busbar protective device group | |
| CN103454042A (en) | High voltage circuit breaker SF6 charged gas leakage detection device | |
| CN203645226U (en) | Pressure protection structure of ring main unit | |
| CN209264877U (en) | A kind of direct-current grounding monitoring device | |
| CN203164278U (en) | Transformer substation switch chamber high-voltage equipment grounding step voltage detecting device | |
| CN105119245B (en) | A kind of 360 degrees omnidirection ring network arc light protection system | |
| CN204144761U (en) | Mobile substation unit switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130626 |