CN103878067A - Electric-bag dust remover and electric field manhole door safety device - Google Patents

Electric-bag dust remover and electric field manhole door safety device Download PDF

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Publication number
CN103878067A
CN103878067A CN201410090622.8A CN201410090622A CN103878067A CN 103878067 A CN103878067 A CN 103878067A CN 201410090622 A CN201410090622 A CN 201410090622A CN 103878067 A CN103878067 A CN 103878067A
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China
Prior art keywords
manhole door
lock
electric field
key
main
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Pending
Application number
CN201410090622.8A
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Chinese (zh)
Inventor
黄星
赖栋文
林荷
刘颖
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Fujian Longking Co Ltd.
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Fujian Longking Co Ltd.
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Application filed by Fujian Longking Co Ltd. filed Critical Fujian Longking Co Ltd.
Priority to CN201410090622.8A priority Critical patent/CN103878067A/en
Publication of CN103878067A publication Critical patent/CN103878067A/en
Priority to CN201510108585.3A priority patent/CN104722404B/en
Pending legal-status Critical Current

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Abstract

The invention discloses an electric field manhole door safety device for an electric-bag dust remover. The electric field manhole door safety device comprises a manhole door lock, a plurality of manhole door keys, a main electric lock, a main electric lock key and an interlocking disc, wherein the manhole door lock is used for locking or unlocking an electric field manhole door, the manhole door keys are matched with the manhole door lock, the main electric lock is used for controlling on-off states of an electric field, and the main electric lock key is matched with the main electric lock; a main lock core and auxiliary lock cores are formed in the interlocking disc, the main lock core is matched with the main electric lock key, the auxiliary lock cores are in one-to-one matching with the manhole door keys, and a main circuit is controlled to be disconnected by the main electric lock when any auxiliary lock core and the manhole door key are in a separable state. According to the electric field manhole door safety device, the occurrence rate of security incidents is further reduced, and the safety performance of the electric field is improved. The invention further discloses the electric-bag dust remover including the electric field manhole door safety device.

Description

A kind of electrostatic fabric filter and electric field manhole door safety device thereof
Technical field
The present invention relates to cleaner technical field, particularly a kind of electric field manhole door safety device for electrostatic fabric filter.
Background technology
Along with economic fast development, the raising day by day of living standards of the people, country requires more and more tighter to air quality control, and also the performance to cleaner and reliability are had higher requirement simultaneously.Electrostatic fabric filter is two kinds of technology of electric precipitation and bag-type dust to be organically combined and the cleaner of new generation that forms, and becomes gradually main cleaner with its advantage such as efficient, reliable.
For convenience of the inner anode and cathode overhaul of the equipments of electric field, need manhole door be set the each electric field region in electrostatic fabric filter system; But electric field region is high voltage discharge field, and voltage can reach thousands of volts, extremely dangerous.The manhole door electric field manhole door safety device of traditional electrostatic fabric filter is generally that corresponding switch elements switching system is set between each electric field high voltage control cabinet and electric cleaner circuit, this system being opened or being closed by key control switching value contact, when key is extracted, respective electric field circuit is obstructed, maintainer can enter deduster maintenance, overhaul and completely key is inserted to switch make circuit turn-on, deduster puts into operation.But, field service personnel and operation personnel often control disconnection, at the scene when maintainer's electric field internal overhaul, do not know whether electric field high voltage rectification equipment moves, operation personnel are in the time of operated from a distance high voltage rectification equipment, and whether the scene of also not knowing has maintainer, accidentally enter electric field once field service personnel in electric field operation, or operation personnel open electric field in the time of internal overhaul, all can cause casualties, and consequence is hardly imaginable.
In order to prevent the generation of above-mentioned condition, can on the basis of above-mentioned installation, make interlocking switch and same key for manhole door, in the time that key is extracted from interlocking switch, respective electric field circuit is obstructed, maintainer just can open manhole door and enter deduster maintenance, overhaul and completely interlocking switch is extracted and inserted to key from manhole door make circuit turn-on, deduster just can put into operation.
But the electric field region of electrostatic fabric filter may be formed by the electric field of multiple connections, electric field region also may arrange multiple manhole doors in all directions; And in above-mentioned electric field manhole door safety device, each interlocking switch is only controlled the high-tension circuit of an electric field, in the time that one of them manhole door is opened, the interlocking switch of other electric field may be in the state of conducting; Or likely the switch contact of electric interlock switch damages, and does not extract from interlocking switch no matter can cause key to have, circuit is all normal open, these exist high pressure to get an electric shock danger while all making to overhaul.
Therefore, how to avoid further preventing the generation of security incident, improve the security performance of electric field, need 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 electrostatic fabric filter, its key by multiple manhole doors is integrated on inter-locking panel, and it is same as pairing key to make inter-locking panel and the main electric locking of controlling main circuit folding use, with key and the interlock of this pairing key of each one hole door in season, only in the time that the key of each manhole door is all inserted on inter-locking panel, pairing key can be pulled up from inter-locking panel, thereby keep away the further incidence that reduces security incident, improved 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 electrostatic fabric filter, comprise the manhole door key that the manhole door locking of control electric field or opener hole door lock, some and described manhole door lock mate, and the main electric lock of the main circuit break-make of control electric field, and the main electric lock key mating with described main electric lock; Also comprise inter-locking panel, on described inter-locking panel, offer the main lock core mating with described main electric lock key, with point lock core mating one by one with each described manhole door key, arbitrary described point lock core with described manhole door key in the time of separable state, main circuit disconnection described in described main electric lock control.
Preferably, described main circuit is in the time of channel status, and 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 the first lock core that is arranged at described the first base and rotates under the driving of described main electric lock key, described the first lock core is connected with the first expansion link by the first rocking arm, and described the first lock core drives described the first expansion link stretch out or retract with respect to described the first base while rotation.
Preferably, described manhole door lock comprises the second base, with the second lock core that is arranged at described the second base and rotates under the driving of described manhole door key, when described the second lock core turns to precalculated position, described manhole door lock and described manhole door key are separable.
Preferably, described inter-locking panel comprises the guide rod that offers some grooves, and the second rocking arm is installed on described guide rod, and flexible piece and the described groove of each described point lock core are oppositely arranged, and described the second rocking arm is fixedly connected with described main lock core.
The present invention also provides a kind of electrostatic fabric filter, comprises the manhole door that is 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 for electrostatic fabric filter, this electric field manhole door safety device comprises controls the manhole door key that the locking of electric field manhole door or opener hole door lock, some and described manhole door lock mate, and the main electric lock of the main circuit break-make of control electric field, and the main electric lock key mating with described main electric lock; Also comprise inter-locking panel, on described inter-locking panel, offer the main lock core mating with described main electric lock key, with point lock core mating one by one with each described manhole door key, arbitrary described point lock core with described manhole door key in the time of separable state, main circuit disconnection described in described main electric lock control.
In the electrostatic fabric filter course of work, if arbitrary point of lock core can separate with manhole door key, the manhole door corresponding with this separable manhole door key is in can opening time, and main electric lock control main circuit disconnects; Also, only have when all people hole door is all when the state in opening, main power source can be communicated with, and electric field can be charged; Like this, this manhole door safety device is integrated in the key of multiple manhole doors on inter-locking panel, and it is same as pairing key to make inter-locking panel and the main electric locking of controlling main circuit folding use, with key and the interlock of this pairing key of each one hole door in season, only in the time that the key of each manhole door is all inserted on inter-locking panel, pairing key can be pulled up from inter-locking panel, thereby has further reduced the incidence of security incident, has improved the security performance of electric field.
One preferred embodiment in, main electric lock provided by the present invention comprises the first base, with the first lock core that is arranged at the first base and rotates under the driving of described main electric lock key, the first lock core is connected with the first expansion link by the first rocking arm, and the first lock core drives the first expansion link stretch out or retract with respect to the first base while rotation; In the time that main electric lock key inserts the first lock core and drive the first lock core to rotate, the first rocking arm just can drive the first expansion link to stretch out or retraction shell, and in the time that the first expansion link stretches out shell, the first expansion link blocks main power switch, it can not closed be switched on, and now manhole door key just can be extracted; In the time that the first expansion link is retracted, the first expansion link can not block main power switch, makes it can open energising; The break-make that realizes main power source by above-mentioned main electric lock is simple in structure, and can realize preferably the interlock of main power source break-make and main electric lock key action, and reliability is higher.
In another preferred embodiment, inter-locking panel provided by the present invention comprises the guide rod that offers some grooves, and the second rocking arm is installed on guide rod, and flexible piece and the groove of each point of lock core are oppositely arranged, and the second rocking arm is fixedly connected with main lock core; In the time that the flexible piece of arbitrary point of lock core stretches out, this point of manhole door key corresponding to lock core can be pulled out, corresponding manhole door can be opened, flexible piece stretches out and enters the groove on guide rod, guide rod shaft to motion be subject to the restriction of this flexible piece stretching out, guide rod cannot move, the rocking arm being driven by guide rod cannot move, the main lock core being connected with rocking arm cannot rotate and extract main electric lock key, main circuit power-off; Only has the flexible piece of working as all points of lock cores all in retracted mode, be that 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 flexible piece, guide rod can move and drive rocking arm to drive main lock core to rotate and extract main electric lock key, could open main electric lock energising with it; The main lock core that this structure realizes is higher with the linkage structure reliability of point lock core, and mechanical linkage has fundamentally avoided the misconnection of main circuit logical, has improved the security performance of electrostatic fabric filter.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of specific embodiment of main electric lock in electric field manhole door safety device provided by the present invention;
Fig. 2 is that in the safety device of electric field manhole door shown in Fig. 1, a kind of structural representation of the specific embodiment is coiled in interlock.
The specific embodiment
Core of the present invention is to provide a kind of electric field manhole door safety device for electrostatic fabric filter, its key by multiple manhole doors is integrated on inter-locking panel, and it is same as pairing key to make inter-locking panel and the main electric locking of controlling main circuit folding use, with key and the interlock of this pairing key of each one hole door in season, only in the time that the key of each manhole door is all inserted on inter-locking panel, pairing key can be pulled up from inter-locking panel, thereby keep away the further incidence that reduces security incident, improved the security performance of electric field.
In order to make those skilled in the art person understand better technical scheme of the present invention, 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 specific embodiment of main electric lock in electric field manhole door safety device provided by the present invention; Fig. 2 is that in the safety device of electric field manhole door shown in Fig. 1, a kind of structural representation of the specific embodiment is coiled in interlock.
In a kind of specific embodiment, electric field manhole door safety device provided by the present invention is for electrostatic fabric filter, this electric field manhole door safety device comprises controls the manhole door key that the locking of electric field manhole door or opener hole door lock, some and described manhole door lock mate, and the main electric lock 1 of the main circuit break-make of control electric field, and the main electric lock key mating with described main electric lock 1; Also comprise inter-locking panel 2, on described inter-locking panel 2, offer the main lock core 21 mating with described main electric lock key, with point lock core 22 mating one by one with each described manhole door key, arbitrary described point lock core 22 is with described manhole door key in the time of separable state, and described main electric lock 1 is controlled described main circuit and disconnected.
It should be understood that the number of above-mentioned manhole door lock and the number of manhole door key should equate, the corresponding outfit one of each manhole door lock is manhole door key; The number that specifically arranges of manhole door lock should be definite according to actual service condition, can be equipped with one manhole door lock by each manhole door, also can be equipped with many manhole door lock by each manhole door.
Further, above-mentioned main circuit is in the time of channel status, and each described point lock core 22 is all in the lock state with described manhole door key, to guarantee main lock core 21 and the strict interlock that divides lock core 22, further improves security performance.
In the electrostatic fabric filter course of work, if arbitrary point of lock core 22 can separate with manhole door key, the manhole door corresponding with this separable manhole door key is in can opening time, and main electric lock 1 is controlled main circuit and disconnected; Also, only have when all people hole door is all when the state in opening, main power source can be communicated with, and electric field can be charged; Like this, this manhole door safety device is integrated in the key of multiple manhole doors on inter-locking panel 2, and it is same as pairing key to make inter-locking panel 2 and the main electric lock 1 of controlling main circuit folding use, with key and the interlock of this pairing key of each one hole door in season, only in the time that 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, thereby has further reduced the incidence of security incident, has improved the security performance of electric field.
Preferably, above-mentioned main electric lock 1 comprises the first base 11, with the first lock core 12 that is arranged at the first base 11 and rotates under the driving of described main electric lock key, the first lock core 12 is connected with when the first expansion link 14, the first lock cores 12 rotate and is driven the first expansion link 14 stretch out or retract with respect to the first base 11 by the first rocking arm 13; In the time that main electric lock key inserts the first lock core 12 and drive the first lock core 12 to rotate, the first rocking arm 13 just can drive the first expansion link 14 to stretch out or retraction shell, in the time that the first expansion link 14 stretches out shell, the first expansion link 14 blocks main power switch, it can not closed be switched on, and now manhole door key just can be extracted; In the time that the first expansion link 14 is retracted, the first expansion link 14 can not block main power switch, makes it can open energising; The break-make that realizes main power source by above-mentioned main electric lock 1 is simple in structure, and can realize preferably the interlock of main power source break-make and main electric lock key action, and reliability is higher.
For realizing the interlock between main electric lock 1 and main circuit, be also not limited to above-mentioned specific implementation, from theory, also can adopt automatic control mode to realize.Particularly, detect the lock-out state of main electric lock 1, and status signal is reached to control element, control element judges the state of main electric lock 1, and in the time that main electric lock 1 is in the lock state, control element control main circuit disconnects, when main electric lock 1 is during in opening, the energising of control element control main circuit.
In the above-mentioned specific embodiment, manhole door lock provided by the present invention comprises the second base, with the second lock core that is arranged at described the second base and rotates under the driving of described manhole door key, when described the second lock core turns to precalculated position, described manhole door lock and described manhole door key are separable; By the auto-lock function of manhole door lock, guarantee that manhole door key only can pull up in the time of preposition, guarantee the safe opening of manhole door.
Preferably, above-mentioned inter-locking panel 2 comprises the guide rod 24 that offers some grooves 23, and the second rocking arm 25 is installed on guide rod 24, and flexible piece 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; In the time that the flexible piece of arbitrary point of lock core 22 stretches out, the manhole door key of this point of lock core 22 correspondences can be pulled out, corresponding manhole door can be opened, flexible piece stretches out and enters the groove 23 on guide rod 24, the axial motion of guide rod 24 is subject to the restriction of this flexible piece stretching out, and guide rod 24 cannot move, and the rocking arm being driven by guide rod 24 cannot move, the main lock core 21 being connected with rocking arm cannot rotate and extract main electric lock key, main circuit power-off; Only has the flexible piece of working as all points of lock cores 22 all in retracted mode, be that 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 flexible piece, guide rod 24 can move and drive rocking arm to drive main lock core 21 to rotate and extract main electric lock key, could open main electric lock 1 with it and switch on; The main lock core 21 that this structure realizes is higher with the linkage structure reliability of point lock core 22, and mechanical linkage has fundamentally avoided the misconnection of main circuit logical, has improved the security performance of electrostatic fabric filter.
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 electrostatic fabric filter that comprises above-mentioned electric field manhole door safety device, and other each several part structures of this electrostatic fabric filter please refer to prior art, do not repeat them here.
Above a kind of electrostatic fabric filter provided by the present invention and electric field manhole door safety device thereof and safety detection method are described in detail.Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.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 improvement and modification also fall in the protection domain of the claims in the present invention.

Claims (6)

1. the electric field manhole door safety device for electrostatic fabric filter, comprise the manhole door key that the manhole door locking of control electric field or opener hole door lock, some and described manhole door lock mate, and the main electric lock (1) of the main circuit break-make of control electric field, and the main electric lock key mating with described main electric lock (1); It is characterized in that, also comprise inter-locking panel (2), on described inter-locking panel (2), offer the main lock core (21) mating with described main electric lock key, with point lock core (22) mating one by one with each described manhole door key, arbitrary described point lock core (22) is with described manhole door key in the time of separable state, and described main electric lock (1) is controlled described main circuit and disconnected.
2. electric field manhole door safety device according to claim 1, is characterized in that, described main circuit is in the time of channel status, and 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 the first lock core (12) that is arranged at described the first base (11) and rotate under the driving of described main electric lock key, described the first lock core (12) is connected with the first expansion link (14) by the first rocking arm (13), and described the first lock core (12) drives described the first expansion link (14) stretch out or retract with respect to described the first base (11) while rotation.
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 the second lock core that is arranged at described the second base and rotates under the driving of described manhole door key, when described the second lock core turns to precalculated position, described manhole door lock and described manhole door key are separable.
5. according to the electric field manhole door safety device described in claim 1 to 4 any one, it is characterized in that, described inter-locking panel (2) comprises the guide rod (24) that offers some grooves (23), the second rocking arm (25) is installed on described guide rod (24), flexible piece and the described groove (23) of each described point lock core (22) are oppositely arranged, and described the second rocking arm (25) is fixedly connected with described main lock core (21).
6. an electrostatic fabric filter, comprises the manhole door that is 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 claim 1 to 5 any one.
CN201410090622.8A 2014-03-12 2014-03-12 Electric-bag dust remover and electric field manhole door safety device Pending CN103878067A (en)

Priority Applications (2)

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
CN201510108585.3A CN104722404B (en) 2014-03-12 2015-03-12 Electric dust collector and electric field manhole door safety device for same

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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

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CN201510108585.3A Active CN104722404B (en) 2014-03-12 2015-03-12 Electric dust collector and electric field manhole door safety device for same

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CN201510108585.3A Active CN104722404B (en) 2014-03-12 2015-03-12 Electric dust collector and electric field manhole door safety device for same

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Cited By (2)

* Cited by examiner, † Cited by third party
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CN104722404A (en) * 2014-03-12 2015-06-24 福建龙净环保股份有限公司 Electric dust collector and electric field manhole door safety device for same
CN115178377A (en) * 2022-06-28 2022-10-14 武汉钢铁有限公司 Gas electrostatic dust removal safety interlocking system and working method thereof

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CN110485830B (en) * 2019-08-06 2021-02-19 中国电建集团华东勘测设计研究院有限公司 Safety lock system suitable for offshore 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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
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
CN102606008B (en) * 2012-03-19 2016-03-02 深圳市禾望电气股份有限公司 A kind of cabinet type device door lock system control method
CN103551006B (en) * 2013-11-13 2015-06-24 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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104722404A (en) * 2014-03-12 2015-06-24 福建龙净环保股份有限公司 Electric dust collector and electric field manhole door safety device for same
CN104722404B (en) * 2014-03-12 2017-04-12 福建龙净环保股份有限公司 Electric dust collector and electric field manhole door safety device for same
CN115178377A (en) * 2022-06-28 2022-10-14 武汉钢铁有限公司 Gas electrostatic dust removal safety interlocking system and working method thereof
CN115178377B (en) * 2022-06-28 2024-07-05 武汉钢铁有限公司 Gas electrostatic dust-removing safety interlocking system and working method thereof

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Application publication date: 20140625