CN206431476U - A kind of exigency stop system of slab burn off line - Google Patents
A kind of exigency stop system of slab burn off line Download PDFInfo
- Publication number
- CN206431476U CN206431476U CN201720099963.0U CN201720099963U CN206431476U CN 206431476 U CN206431476 U CN 206431476U CN 201720099963 U CN201720099963 U CN 201720099963U CN 206431476 U CN206431476 U CN 206431476U
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- Prior art keywords
- relay
- jerk
- scram button
- auxiliary contact
- load
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Abstract
The utility model provides a kind of exigency stop system of slab burn off line, including：Scram button；Jerk SR；Jerk relay group, is electrically connected with the scram button and jerk SR respectively, the break-make of the load electrically connected for the break-make control according to the two with the jerk relay group；The jerk relay group includes：First relay, is electrically connected with the scram button, the second relay, is connected in the circuit where an auxiliary contact of the jerk SR and the first relay；Each auxiliary contact of second relay set a relay respectively in circuit.By upper, when loading normal work, scram button and the equal path of jerk SR, then jerk relay group control connected load normal work.After scram button is pressed, disconnection is changed to due to jerk relay, then controls connected load jerk.
Description
Technical field
The utility model is related to a kind of exigency stop system of slab burn off line.
Background technology
, will be urgent to all devices when system jerk in the slab burn off line exigency stop system processing method of prior art
Stop, the area equipment that may so have no problem originally is also by emergent stopping, it is possible to which the equipment belt in this region is come not
Necessary trouble.
Secondly, existing exigency stop system is usually predominantly hardware jerk, and software jerk is not analyzed and processed, as long as it is that is, anxious
It is all to stop at once to stop all devices.Jerk is stopped at once, is probably proper i.e. guarantor for mini system, skinny device
Body safety ensures equipment safety again, but for metallurgy industry particularly slab burn off line, and equipment is than larger, and slab weight all exists
2nd, 30 tons of weights, in the case of technics comparing is complicated, when jerk, the parking at once of not all equipment can be suitable.Now need
Depending on actual conditions, for the region that life security implication is larger, equipment should stop at once during jerk, but for some areas
Domain will not produce influence safely to life, but need protection equipment, avoid the need for stopping at once.
In addition, conventional jerk reset function, as long as after scram button sets back, pressing jerk SR can enter
Row jerk resets, and eliminates system jerk, if so some equipment is also faulty or region is also in the state of maintenance, it is possible to shape
Into personnel or equipment safety hidden danger.
Utility model content
Main purpose of the present utility model is to provide a kind of exigency stop system of slab burn off line, including：
Scram button；
Jerk SR；
Jerk relay group, is electrically connected with the scram button and jerk SR respectively, for according to the logical of the two
The break-make for the load that disconnected control is electrically connected with the jerk relay group；
The jerk relay group includes：
First relay, is connected in series with the scram button,
Second relay, the auxiliary contact for being connected in series in the jerk SR and the first relay are connected company
In the circuit connect；
Each auxiliary contact of second relay are connected in series a relay respectively in circuit.
By upper, when loading normal work, scram button and the equal path of jerk SR, then jerk relay group control
Connected load normal work.After scram button is pressed, disconnection is changed to due to jerk relay, then control connects with it
The load jerk connect.
First relay directly receives scram button control, and on the one hand the second relay is controlled by the first relay, another
Aspect is used as extension, i.e., by multiple auxiliary contact of the second relay, can add multiple relays, multiple relays
Essence receives the control of scram button, realizes and the jerk of multiple loads is controlled.
A wherein auxiliary contact for second relay are connected in parallel with the jerk SR.
By upper, pass through the auxiliary contact being connected in parallel with jerk SR so that each contact of the second relay is real
Existing self-locking, even if after jerk SR is misused, influence is not received still for the control for loading jerk.
The jerk relay group also includes：
3rd relay, is connected in parallel with second relay；
Other auxiliary contact of the 3rd relay are connected in series a relay respectively in circuit.
By upper, when the auxiliary contact limited amount of the second relay, pass through threeth relay in parallel with the second relay
Device is realized to be expanded again for what load was controlled the size, that is, passes through the auxiliary contact of the 3rd relay, it is possible to achieve for more negative
The control of load.
The scram button is the normally closed scram button in contact.
By upper, it can overcome due to welding open circuit caused by normally opened contact or being caused due to overlong time aging circuit
Situation about can not close.Normally-closed contact make it that in normal work the state of scram button is closure, when startup jerk
When, break contact, the line fault that the normally opened contact avoided to greatest extent is easily caused.
The scram button is also connected with a PLC control centres.
By upper, correspond to the situation of different operating section respectively due to there may be multiple scram buttons, scram button is collected
To PLC control centres can so as to it is all load emergency stops same management.
Also include：
Load faulty detection module, the failure situation for detecting each load；
The PLC control centres also communicate to connect with the load faulty detection module and jerk SR.
By upper, the failure situation by load faulty detection module for load is detected, the event for load that and if only if
When barrier is excluded, just allow to be resetted pressing jerk SR.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of exigency stop system；
Fig. 2 is the auxiliary contact circuit theory diagrams of the 4th to the 7th relay；
Fig. 3 is the control principle schematic diagram of PLC control centres.
Embodiment
Slab burn off line described in the utility model is described in detail referring to Fig. 1~Fig. 3.
As shown in figure 1, including scram button, the jerk relay group (KA1~KA7) being connected electrically, and with it is described
The jerk SR of jerk relay group electrical connection.
The scram button uses normally-closed contact, i.e., the contact ES1 of scram button under normal circumstances be closure state, when by
During lower scram button, contact ES1 disconnects.
Jerk relay group, for the operation according to the scram button, controls connected load power down, so that real
Existing jerk.In the present embodiment, the load that the jerk relay group is controlled includes the devices such as the frequency converter on slab burn off line.
As shown in figure 1, in the present embodiment, the jerk relay group include 7 relay groups into, respectively KA1~
KA7.Each relay uses many-contact relay.
Wherein, the first relay KA1 is directly connected in series with the scram button.Normal work (un-activation scram button
Contact ES1) when, E24P and U24M is the both positive and negative polarity of power supply in Fig. 1, and using 24V safe power supplies, human body will not be caused
Injury.Power supply is delivered to the first relay KA1 by the normally-closed contact ES1 of scram button, and the first relay KA1 closes electric, then should
The auxiliary contact KA1_1 closures of relay.
Second relay KA2 is connected in series in the first relay KA1 auxiliary contact KA1_1 and touching for jerk SR
In the circuit that point COP1_K14 is connected in series.Include multiple auxiliary contact as Fig. 1 can be seen that second relay
(KA2_1~KA2_4), then after the second relay KA2 closes electric, aforementioned four auxiliary contact are also closed.So as to ensure point
Each relay (KA3~KA7) not with the same branch road of above-mentioned auxiliary contact is kept as electric closure.Also, the first auxiliary contact
KA2_1 and jerk SR contact COP1_K14 are connected in parallel.
3rd relay KA3 is connected in parallel with the second relay KA2, when the second relay KA2 obtains electric closure, the
Three relay KA3 also close electric.
Fourth, fifthth, auxiliary contact KA2_2, the KA2_ of six relays (KA4~KA6) respectively with the second relay KA2
After 3 and KA2_4 is connected in series, the both positive and negative polarity of the 24V power supplies is connected to, i.e. when the first relay KA1 and the second relay
When device KA2 obtains electric closure, fourth, fifth, six relays also electric closure.
After 7th relay KA7 and the 3rd relay KA3 auxiliary contact KA3_1 is connected in series, it is connected to described
The both positive and negative polarity of 24V power supplies, i.e. when the 3rd relay KA3 obtains electric closure, the 7th relay KA7 also electric closure.
The auxiliary contact schematic diagram of the 4th to the 7th relay (KA4~KA7) is illustrated in figure 2, each relay includes
Four auxiliary contact, you can be controlled with realizing to the switch of multiple loads (frequency converter).
By upper, it can be needed according to safe class or production, the load that must immediately stop after jerk control is connected
To the auxiliary contact of above-mentioned relay.And the load that can continue production under jerk state need not then connect above-mentioned relay
Auxiliary contact, so as to realize the jerk control for different loads.Relay quantity in circuit shown in the present embodiment, with
And the auxiliary contact quantity of each relay is only to illustrate in the realization principle of exigency stop system, practical application, relay quantity and auxiliary
Number of contacts is helped without restriction.
After the scram button ES1 is pressed, ES1 contacts are disconnected, and now relay KA1 is powered off, so that auxiliary is touched
Point KA1_1 disconnects.Thus, with auxiliary contact KA1_1 in same branch road, and the relay KA2 and KA3 being connected in parallel power and cut
It is disconnected.At the same time, relay KA2 auxiliary contact KA2_1~KA2_4, and relay KA3 auxiliary contact KA3_1 also with
Disconnection, the power-off of the 4th to the 7th relay (KA4~KA7), the auxiliary contact of above-mentioned relay are all off, each relay institute
The load (frequency converter) of control is stopped in emergency.
When being returned to normal production after the completion of frequency converter stops in emergency accident treatment, need first operator control by jerk by
Button adjusting is to unactivated state (the correspondence ES1 closings of contact), and now relay KA1 obtains electric, relay KA1 auxiliary contact KA1_1
Closure.Control jerk SR is pressed simultaneously, makes its contact COP1_K14 closures once, so that control relay KA2 obtains electric,
Relay KA2 auxiliary contact KA2_1~KA2_4 closes to form latching circuit, and guard relay KA2, KA3 obtain electric, and follow-up
Four to the 7th relays (KA4~KA7) are also electricly successive, eliminate jerk.
Further, the scram button may include multiple, correspondence different operating section.For example, the scram button is set
In on the workbench of each active section of slab burn off line.Each scram button is gathered to PLC control centres by hard-line cable, is united
One management and control.It is illustrated in figure 3 the control flow chart of PLC control centres.Comprise the following steps：
In real time detection jerk state, that is, detect scram button whether be pressed (whether ES1 disconnects), when scram button by by
When lower, load (frequency converter) jerk flag set that it is controlled blocks relevant action logic from the execution logic of load,
Guarantee control system safety.
Thereafter, PLC control centres detect whether to receive jerk reset instruction, when scram button is adjusted to by operator's control
Unactivated state (correspondence contact ES1 closures), while when controlling jerk SR closure (correspondence contact COP1_K14 closures),
PLC control centres need whether detection is eliminated by the state of jerk equipment, i.e. failure first, if fault-free, normal multiple
Position, otherwise refusal reset.In the present embodiment, for using existing failure detector (method) by the detection of jerk equipment state
Realize.
The above-mentioned flow of the PLC control centres can be anxious in jerk circuit and logic from the jerk control for coordinating circuit
Stop two aspects and realize that the jerk for load is controlled.
Preferred embodiment of the present utility model is the foregoing is only, not to limit the utility model, above-mentioned jerk system
Though system is applied to slab burn off line, it is not limited in practical application time, any load equipment with on-off circuit can be controlled.
It is all it is of the present utility model spirit and principle within, any modification, equivalent substitution and improvements made etc. should be included in this reality
Within new protection domain.
Claims (6)
1. a kind of exigency stop system of slab burn off line, it is characterised in that including：
Scram button；
Jerk SR；
Jerk relay group, is electrically connected with the scram button and jerk SR respectively, for the break-make control according to the two
Make the break-make of the load electrically connected with the jerk relay group；
The jerk relay group includes：
First relay, is connected in series with the scram button；
Second relay, is connected in series in what auxiliary contact of the jerk SR and the first relay were connected in series
In circuit；
Each auxiliary contact of second relay are connected in series a relay respectively in circuit.
2. system according to claim 1, it is characterised in that
A wherein auxiliary contact for second relay are connected in parallel with the jerk SR.
3. system according to claim 1 or 2, it is characterised in that the jerk relay group also includes：
3rd relay, is connected in parallel with second relay；
Other auxiliary contact of the 3rd relay are connected in series a relay respectively in circuit.
4. system according to claim 1, it is characterised in that the scram button is the normally closed scram button in contact.
5. system according to claim 1, it is characterised in that the scram button is also connected with a PLC control centres.
6. system according to claim 5, it is characterised in that also include：
Load faulty detection module, the failure situation for detecting each load；
The PLC control centres also communicate to connect with the load faulty detection module and jerk SR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720099963.0U CN206431476U (en) | 2017-01-23 | 2017-01-23 | A kind of exigency stop system of slab burn off line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720099963.0U CN206431476U (en) | 2017-01-23 | 2017-01-23 | A kind of exigency stop system of slab burn off line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206431476U true CN206431476U (en) | 2017-08-22 |
Family
ID=59591855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720099963.0U Expired - Fee Related CN206431476U (en) | 2017-01-23 | 2017-01-23 | A kind of exigency stop system of slab burn off line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206431476U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375571A (en) * | 2018-11-12 | 2019-02-22 | 楚天智能机器人（长沙）有限公司 | A kind of emergency stop device and system of products storage circulation system |
| CN111376765A (en) * | 2018-12-27 | 2020-07-07 | 江苏万帮德和新能源科技股份有限公司 | Self-reset control circuit after emergency stop and cut-off of charging pile and use method thereof |
| CN112099340A (en) * | 2020-09-27 | 2020-12-18 | 中油国家油气钻井装备工程技术研究中心有限公司 | Emergency stop redundancy control system and control method |
| CN112731893A (en) * | 2021-01-28 | 2021-04-30 | 山西云时代太钢信息自动化技术有限公司 | Unit remote emergency stop device and control method thereof |
-
2017
- 2017-01-23 CN CN201720099963.0U patent/CN206431476U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375571A (en) * | 2018-11-12 | 2019-02-22 | 楚天智能机器人（长沙）有限公司 | A kind of emergency stop device and system of products storage circulation system |
| CN111376765A (en) * | 2018-12-27 | 2020-07-07 | 江苏万帮德和新能源科技股份有限公司 | Self-reset control circuit after emergency stop and cut-off of charging pile and use method thereof |
| CN111376765B (en) * | 2018-12-27 | 2024-01-23 | 万帮数字能源股份有限公司 | Self-resetting control circuit for charging pile after emergency stop and cut-off and use method thereof |
| CN112099340A (en) * | 2020-09-27 | 2020-12-18 | 中油国家油气钻井装备工程技术研究中心有限公司 | Emergency stop redundancy control system and control method |
| CN112099340B (en) * | 2020-09-27 | 2023-08-29 | 中油国家油气钻井装备工程技术研究中心有限公司 | Emergency stop redundant control system and control method |
| CN112731893A (en) * | 2021-01-28 | 2021-04-30 | 山西云时代太钢信息自动化技术有限公司 | Unit remote emergency stop device and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170822 Termination date: 20220123 |