CN104722404A - Electric dust collector and electric field manhole door safety device for same - Google Patents
Electric dust collector and electric field manhole door safety device for same Download PDFInfo
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- CN104722404A CN104722404A CN201510108585.3A CN201510108585A CN104722404A CN 104722404 A CN104722404 A CN 104722404A CN 201510108585 A CN201510108585 A CN 201510108585A CN 104722404 A CN104722404 A CN 104722404A
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- manhole door
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Abstract
The invention discloses an electric field manhole door safety device for an electric dust collector. The electric field manhole door safety device comprises a manhole door lock for controlling the electric field manhole door to be locked or opened, a plurality of manhole door keys matched with a manhole door lock, a main electric lock for controlling the on-off of a main circuit of an electric field and a main electric lock key matched with the main electric lock; and the electric field manhole door safety device also comprises an interlock disc, the interlock disc is provided with a main lock cylinder matched with the main electric lock key and branch lock cylinders matched with each manhole door key, and when any branch lock cylinder is separated from the manhole door key, the main electric lock controls the main circuit to be switched off. By adopting the electric field manhole door safety device, the occurrence rate of safety accidents can be further reduced, and the safety performance of the electric field can be improved. The invention also discloses an electric dust collector comprising the electric field manhole door safety device.
Description
Technical field
The present invention relates to technical field of dust removal equipment, particularly a kind of electric field manhole door safety device for electric cleaner.
Background technology
Along with the fast development of economy, the raising day by day of living standards of the people, country is more and more tighter to air quality control overflow, also has higher requirement to the performance of cleaner and reliability simultaneously.
For convenience of the inner anode and cathode overhaul of the equipments of electric field, manhole door need be set each electric field region in electric dust removal system; But electric field region is high voltage discharge field, and voltage can reach thousands of volt, extremely dangerous.The manhole door electric field manhole door safety device of traditional electric cleaner be generally each electric field high voltage control cabinet to corresponding switch elements switching system is set between electric cleaner circuit, this system controls opening or closing of switching value contact by key, when key is extracted, respective electric field circuit is obstructed, maintainer can enter electric cleaner maintenance, overhaul and completely key is inserted switch make circuit turn-on, electric cleaner puts into operation.But, field service personnel and operation personnel often control to disconnect, at the scene during maintainer's electric field internal overhaul, do not know whether electric field high voltage rectification equipment runs, operation personnel, when operated from a distance high voltage rectification equipment, do not know whether scene has maintainer yet, accidentally electric field is entered in electric field operation once field service personnel, or operation personnel are threshold electric field when internal overhaul, all can cause casualties, consequence is hardly imaginable.
In order to prevent the generation of above-mentioned condition, interlocking switch and manhole door same key can be made on the basis of above-mentioned installation, when key is extracted from interlocking switch, respective electric field circuit is obstructed, maintainer just can open manhole door and enter electric cleaner maintenance, overhaul complete key is extracted from manhole door and is inserted interlocking switch make circuit turn-on, electric cleaner just can put into operation.
But the electric field region of electric cleaner may be formed by the electric field of multiple connection, and electric field region also may arrange multiple manhole door in all directions; And in above-mentioned electric field manhole door safety device, each interlocking switch only controls the high-tension circuit of an electric field, when one of them manhole door is opened, the interlocking switch of other electric field may be in the state of conducting; Or the switch contact of likely electric interlock switch damages, do not extract from interlocking switch no matter key can be caused to have, circuit is all normal open, and these all make to exist during maintenance the danger that high pressure gets an electric shock.
Therefore, how to avoid the generation preventing security incident further, improving the security performance of electric field, needing the problem of solution with regard to becoming those skilled in the art badly.
Summary of the invention
The object of this invention is to provide a kind of electric field manhole door safety device for electric cleaner, the key of multiple manhole door is integrated on inter-locking panel by it, and it is same as matching key to make inter-locking panel and the main electric locking controlling main circuit folding use, key and this pairing key of same each one hole door seasonal link, only when the key of each manhole door is all inserted on inter-locking panel, pairing key can be pulled up from inter-locking panel, thus keep away the incidence that reduce further security incident, improve the security performance of electric field.
For solving the problems of the technologies described above, the invention provides a kind of electric field manhole door safety device for electric cleaner, comprise control the locking of electric field manhole door or opener hole door lock, manhole door key that some and described manhole door lock mates, and the main electric lock of the main circuit break-make of control electric field, and the main electric lock key mated with described main electric lock; Also comprise inter-locking panel, described inter-locking panel offers the main lock core mated with described main electric lock key, and point lock core to mate one by one with each described manhole door key, when arbitrary described point lock core is in separable state with described manhole door key, described main electric lock controls the disconnection of described main circuit.
Preferably, when described main circuit is in channel status, each described point lock core and described manhole door key are all in the lock state.
Preferably, described main electric lock comprises the first base, with be arranged at described first base and the first lock core rotated under the driving of described main electric lock key, described first lock core is connected with the first expansion link by the first rocking arm, drives described first expansion link stretch out relative to described first base or retract when described first lock core rotates.
Preferably, described manhole door lock comprises the second base, with be arranged at described second base and the second lock core rotated under the driving of described manhole door key, when described second lock core turns to precalculated position, described manhole door lock and described manhole door key separable.
Preferably, described inter-locking panel comprises the guide rod offering some grooves, described guide rod is provided with the second rocking arm, and telescopic block and the described groove of each described point lock core are oppositely arranged, and described second rocking arm is fixedly connected with described main lock core.
The present invention also provides a kind of electric cleaner, comprises the manhole door being arranged on electric field higher-pressure region, and electric field manhole door safety device, and described electric field manhole door safety device is electric field manhole door safety device as above.
Electric field manhole door safety device provided by the present invention is used for electric cleaner, this electric field manhole door safety device comprise control the locking of electric field manhole door or opener hole door lock, manhole door key that some and described manhole door lock mates, and the main electric lock of the main circuit break-make of control electric field, and the main electric lock key mated with described main electric lock; Also comprise inter-locking panel, described inter-locking panel offers the main lock core mated with described main electric lock key, and point lock core to mate one by one with each described manhole door key, when arbitrary described point lock core is in separable state with described manhole door key, described main electric lock controls the disconnection of described main circuit.
In the electric cleaner course of work, if arbitrary point of lock core can be separated with manhole door key, the manhole door that namely manhole door key separable with this is corresponding be in can opening time, main electric lock controls main circuit and namely disconnects; Also namely, only have when all people hole Men Jun is in the state that cannot open, main power source can be communicated with, and electric field can be charged; Like this, the key of multiple manhole door is integrated on inter-locking panel by this manhole door safety device, and it is same as matching key to make inter-locking panel and the main electric locking controlling main circuit folding use, key and this pairing key of same each one hole door seasonal link, only when the key of each manhole door is all inserted on inter-locking panel, pairing key can be pulled up from inter-locking panel, thus reduce further the incidence of security incident, improves the security performance of electric field.
In a preferred embodiment, main electric lock provided by the present invention comprises the first base, with be arranged at the first base and the first lock core rotated under the driving of described main electric lock key, first lock core is connected with the first expansion link by the first rocking arm, drives the first expansion link stretch out relative to the first base or retract when the first lock core rotates; When main electric lock key inserts the first lock core and drives the first lock core to rotate, first rocking arm just can drive the first expansion link to stretch out or retraction shell, and when the first expansion link stretches out shell, the first expansion link blocks main power switch, make it not close energising, now manhole door key just can be extracted; When the first expansion link is retracted, the first expansion link can not block main power switch, makes it open energising; The break-make structure being realized main power source by above-mentioned main electric lock is simple, and can realize the interlock of main power source break-make and main electric lock key action preferably, and reliability is higher.
In another preferred embodiment, inter-locking panel provided by the present invention comprises the guide rod offering some grooves, guide rod is provided with the second rocking arm, and telescopic block and the groove of each point of lock core are oppositely arranged, and the second rocking arm is fixedly connected with main lock core; When the telescopic block of arbitrary point of lock core is stretched out, the manhole door key that this point of lock core is corresponding can be pulled out, corresponding manhole door can be opened, telescopic block is stretched out and is entered the groove on guide rod, guide rod shaft to motion be subject to the restriction of the telescopic block that this stretches out, guide rod cannot move, then the rocking arm driven by guide rod cannot move, the main lock core be connected with rocking arm cannot rotate and extract main electric lock key, main circuit power-off; The telescopic block when all points of lock cores is only had all to be in retracted mode, namely arbitrary manhole door key all cannot be extracted, when all manhole doors are all in the lock state, the groove of guide rod is no longer subject to the restriction of telescopic block, guide rod can move and drive rocking arm to drive main lock core rotate and extract main electric lock key, could open the energising of main electric lock with it; The main lock core that this structure realizes is higher with the linkage structure reliability of point lock core, and the misconnection that mechanical linkage fundamentally avoids main circuit is led to, and improves the security performance of electric cleaner.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of detailed description of the invention of main electric lock in electric field manhole door safety device provided by the present invention;
Fig. 2 coils a kind of structural representation of detailed description of the invention for interlock in the manhole door of electric field shown in Fig. 1 safety device.
Detailed description of the invention
Core of the present invention is to provide a kind of electric field manhole door safety device for electric cleaner, the key of multiple manhole door is integrated on inter-locking panel by it, and it is same as matching key to make inter-locking panel and the main electric locking controlling main circuit folding use, key and this pairing key of same each one hole door seasonal link, only when the key of each manhole door is all inserted on inter-locking panel, pairing key can be pulled up from inter-locking panel, thus keep away the incidence that reduce further security incident, improve the security performance of electric field.
In order to make those skilled in the art person understand technical scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of a kind of detailed description of the invention of main electric lock in electric field manhole door safety device provided by the present invention; Fig. 2 coils a kind of structural representation of detailed description of the invention for interlock in the manhole door of electric field shown in Fig. 1 safety device.
In a kind of detailed description of the invention, electric field manhole door safety device provided by the present invention is used for electric cleaner, this electric field manhole door safety device comprise control the locking of electric field manhole door or opener hole door lock, manhole door key that some and described manhole door lock mates, and the main electric lock 1 of the main circuit break-make of control electric field, and the main electric lock key mated with described main electric lock 1; Also comprise inter-locking panel 2, described inter-locking panel 2 offers the main lock core 21 mated with described main electric lock key, and point lock core 22 to mate one by one with each described manhole door key, when arbitrary described point lock core 22 is in separable state with described manhole door key, described main electric lock 1 controls described main circuit and disconnects.
It should be understood that the number of above-mentioned manhole door lock should be equal with the number of manhole door key, the corresponding outfit one of each manhole door lock is manhole door key; Specifically arranging number and should determining according to actual service condition of manhole door lock, can be equipped with one manhole door lock by each manhole door, also can each manhole door outfit many manhole door lock.
Further, when above-mentioned main circuit is in channel status, each described point lock core 22 is all in the lock state with described manhole door key, to ensure main lock core 21 and the strict interlock of point lock core 22, improves security performance further.
In the electric cleaner course of work, if arbitrary point of lock core 22 can be separated with manhole door key, the manhole door that namely manhole door key separable with this is corresponding be in can opening time, main electric lock 1 controls main circuit and namely disconnects; Also namely, only have when all people hole Men Jun is in the state that cannot open, main power source can be communicated with, and electric field can be charged; Like this, the key of multiple manhole door is integrated on inter-locking panel 2 by this manhole door safety device, and it is same as matching key to make inter-locking panel 2 and the main electric lock 1 controlling main circuit folding use, key and this pairing key of same each one hole door seasonal link, only when the key of each manhole door is all inserted on inter-locking panel 2, pairing key can be pulled up from inter-locking panel 2, thus reduce further the incidence of security incident, improves the security performance of electric field.
Preferably, above-mentioned main electric lock 1 comprises the first base 11, with be arranged at the first base 11 and the first lock core 12 rotated under the driving of described main electric lock key, first lock core 12 is connected with when the first expansion link 14, first lock core 12 rotates by the first rocking arm 13 and drives the first expansion link 14 stretch out relative to the first base 11 or retract; When main electric lock key inserts the first lock core 12 and drives the first lock core 12 to rotate, first rocking arm 13 just can drive the first expansion link 14 to stretch out or retraction shell, when the first expansion link 14 stretches out shell, first expansion link 14 blocks main power switch, make it not close energising, now manhole door key just can be extracted; When the first expansion link 14 is retracted, the first expansion link 14 can not block main power switch, makes it open energising; The break-make structure being realized main power source by above-mentioned main electric lock 1 is simple, and can realize the interlock of main power source break-make and main electric lock key action preferably, and reliability is higher.
For realizing the interlock between main electric lock 1 and main circuit, being also not limited to above-mentioned specific implementation, from theory, automatic control mode also can being adopted to realize.Particularly, detect the lock-out state of main electric lock 1, and status signal is reached control element, control element judges the state of main electric lock 1, and when main electric lock 1 is in the lock state, control element controls main circuit and disconnects, when main electric lock 1 is in opening, control element controls main circuit energising.
In above-mentioned detailed description of the invention, manhole door lock provided by the present invention comprises the second base, with be arranged at described second base and the second lock core rotated under the driving of described manhole door key, when described second lock core turns to precalculated position, described manhole door lock and described manhole door key separable; By the auto-lock function of manhole door lock, ensure that manhole door key only can be pulled up when preposition, ensure that the safe opening of manhole door.
Preferably, above-mentioned inter-locking panel 2 comprises the guide rod 24 offering some grooves 23, guide rod 24 is provided with the second rocking arm 25, and telescopic block and the groove 23 of each point of lock core 22 are oppositely arranged, and the second rocking arm 25 is fixedly connected with main lock core 21; When the telescopic block of arbitrary point of lock core 22 is stretched out, the manhole door key of this point of lock core 22 correspondence can be pulled out, corresponding manhole door can be opened, telescopic block is stretched out and is entered the groove 23 on guide rod 24, the motion of guide rod 24 axis is subject to the restriction of the telescopic block that this stretches out, and guide rod 24 cannot move, then the rocking arm driven by guide rod 24 cannot move, the main lock core 21 be connected with rocking arm cannot rotate and extract main electric lock key, main circuit power-off; The telescopic block when all points of lock cores 22 is only had all to be in retracted mode, namely arbitrary manhole door key all cannot be extracted, when all manhole doors are all in the lock state, the groove 23 of guide rod 24 is no longer subject to the restriction of telescopic block, guide rod 24 can move and drive rocking arm to drive main lock core 21 rotate and extract main electric lock key, could open main electric lock 1 be energized with it; The main lock core 21 that this structure realizes is higher with the linkage structure reliability of point lock core 22, and the misconnection that mechanical linkage fundamentally avoids main circuit is led to, and improves the security performance of electric cleaner.
It is pointed out that ordinal numbers such as " first, second " described in literary composition is the different structure in order to distinguish same names, is only for convenience, does not represent certain order, more should not be construed as any restriction.
Except above-mentioned electric field manhole door safety device, the present invention also provides a kind of electric cleaner comprising above-mentioned electric field manhole door safety device, and other Each part of this electric cleaner please refer to prior art, do not repeat them here.
Above a kind of electric cleaner provided by the present invention and electric field manhole door safety device thereof and safety detection method are described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (6)
1. the electric field manhole door safety device for electric cleaner, comprise control the locking of electric field manhole door or opener hole door lock, manhole door key that some and described manhole door lock mates, and the main electric lock (1) of the main circuit break-make of control electric field, and the main electric lock key mated with described main electric lock (1); It is characterized in that, also comprise inter-locking panel (2), described inter-locking panel (2) offers the main lock core (21) mated with described main electric lock key, and point lock core (22) to mate one by one with each described manhole door key, when arbitrary described point lock core (22) is in separable state with described manhole door key, described main electric lock (1) controls described main circuit and disconnects.
2. electric field manhole door safety device according to claim 1, is characterized in that, when described main circuit is in channel status, each described point lock core (22) is all in the lock state with described manhole door key.
3. electric field manhole door safety device according to claim 2, it is characterized in that, described main electric lock (1) comprises the first base (11), with be arranged at described first base (11) and the first lock core (12) rotated under the driving of described main electric lock key, described first lock core (12) is connected with the first expansion link (14) by the first rocking arm (13), drives described first expansion link (14) stretch out relative to described first base (11) or retract when described first lock core (12) is rotated.
4. electric field manhole door safety device according to claim 2, it is characterized in that, described manhole door lock comprises the second base, with be arranged at described second base and the second lock core rotated under the driving of described manhole door key, when described second lock core turns to precalculated position, described manhole door lock and described manhole door key separable.
5. the electric field manhole door safety device according to any one of Claims 1-4, it is characterized in that, described inter-locking panel (2) comprises the guide rod (24) offering some grooves (23), described guide rod (24) is provided with the second rocking arm (25), telescopic block and the described groove (23) of each described point lock core (22) are oppositely arranged, and described second rocking arm (25) is fixedly connected with described main lock core (21).
6. an electric cleaner, comprises the manhole door being arranged on electric field higher-pressure region, and electric field manhole door safety device, it is characterized in that, described electric field manhole door safety device is the electric field manhole door safety device as described in any one of claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510108585.3A CN104722404B (en) | 2014-03-12 | 2015-03-12 | Electric dust collector and electric field manhole door safety device for same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410090622.8A CN103878067A (en) | 2014-03-12 | 2014-03-12 | Electric-bag dust remover and electric field manhole door safety device |
| CN2014100906228 | 2014-03-12 | ||
| CN201510108585.3A CN104722404B (en) | 2014-03-12 | 2015-03-12 | Electric dust collector and electric field manhole door safety device for same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104722404A true CN104722404A (en) | 2015-06-24 |
| CN104722404B CN104722404B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410090622.8A Pending CN103878067A (en) | 2014-03-12 | 2014-03-12 | Electric-bag dust remover and electric field manhole door safety device |
| CN201510108585.3A Active CN104722404B (en) | 2014-03-12 | 2015-03-12 | Electric dust collector and electric field manhole door safety device for same |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410090622.8A Pending CN103878067A (en) | 2014-03-12 | 2014-03-12 | Electric-bag dust remover and electric field manhole door safety device |
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| CN (2) | CN103878067A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485830A (en) * | 2019-08-06 | 2019-11-22 | 中国电建集团华东勘测设计研究院有限公司 | Safety lock system suitable for marine converter station valve hall |
| CN111774182A (en) * | 2020-07-29 | 2020-10-16 | 青岛鼎信工业安全设备有限公司 | Electric precipitator overhauls safety interlock system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878067A (en) * | 2014-03-12 | 2014-06-25 | 福建龙净环保股份有限公司 | Electric-bag dust remover and electric field manhole door safety device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009062127A (en) * | 2007-09-05 | 2009-03-26 | Toshiba Elevator Co Ltd | Emergency elevator control system |
| CN201375930Y (en) * | 2009-01-20 | 2010-01-06 | 清华同方(鞍山)环保设备股份有限公司 | Safety interlock control system device for electrostatic precipitator |
| KR101167979B1 (en) * | 2012-01-30 | 2012-07-23 | 동영전기 주식회사 | A safe switch-gear built-in an automatic compulsory power cut work induction function |
| CN102606008A (en) * | 2012-03-19 | 2012-07-25 | 深圳市禾望电气有限公司 | Cabinet type device door lock system and control method thereof |
| CN202497943U (en) * | 2012-01-31 | 2012-10-24 | 安徽恒意环保科技有限公司 | Novel double-layer manhole door |
| CN103551006A (en) * | 2013-11-13 | 2014-02-05 | 福建龙净环保股份有限公司 | Electric-bag dust collector, electric field manhole door safety device for same and safety detection method |
| CN103878067A (en) * | 2014-03-12 | 2014-06-25 | 福建龙净环保股份有限公司 | Electric-bag dust remover and electric field manhole door safety device |
-
2014
- 2014-03-12 CN CN201410090622.8A patent/CN103878067A/en active Pending
-
2015
- 2015-03-12 CN CN201510108585.3A patent/CN104722404B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009062127A (en) * | 2007-09-05 | 2009-03-26 | Toshiba Elevator Co Ltd | Emergency elevator control system |
| CN201375930Y (en) * | 2009-01-20 | 2010-01-06 | 清华同方(鞍山)环保设备股份有限公司 | Safety interlock control system device for electrostatic precipitator |
| KR101167979B1 (en) * | 2012-01-30 | 2012-07-23 | 동영전기 주식회사 | A safe switch-gear built-in an automatic compulsory power cut work induction function |
| CN202497943U (en) * | 2012-01-31 | 2012-10-24 | 安徽恒意环保科技有限公司 | Novel double-layer manhole door |
| CN102606008A (en) * | 2012-03-19 | 2012-07-25 | 深圳市禾望电气有限公司 | Cabinet type device door lock system and control method thereof |
| CN103551006A (en) * | 2013-11-13 | 2014-02-05 | 福建龙净环保股份有限公司 | Electric-bag dust collector, electric field manhole door safety device for same and safety detection method |
| CN103878067A (en) * | 2014-03-12 | 2014-06-25 | 福建龙净环保股份有限公司 | Electric-bag dust remover and electric field manhole door safety device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485830A (en) * | 2019-08-06 | 2019-11-22 | 中国电建集团华东勘测设计研究院有限公司 | Safety lock system suitable for marine converter station valve hall |
| CN111774182A (en) * | 2020-07-29 | 2020-10-16 | 青岛鼎信工业安全设备有限公司 | Electric precipitator overhauls safety interlock system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103878067A (en) | 2014-06-25 |
| CN104722404B (en) | 2017-04-12 |
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