CN114699700B - Fire extinguishing system starting device capable of reducing risk of incapability of spraying and working method thereof - Google Patents
Fire extinguishing system starting device capable of reducing risk of incapability of spraying and working method thereof Download PDFInfo
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- CN114699700B CN114699700B CN202210297852.6A CN202210297852A CN114699700B CN 114699700 B CN114699700 B CN 114699700B CN 202210297852 A CN202210297852 A CN 202210297852A CN 114699700 B CN114699700 B CN 114699700B
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/04—Control of fire-fighting equipment with electrically-controlled release
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention provides a fire extinguishing system starting device capable of reducing the risk of incapability of spraying and a working method thereof, the fire extinguishing system based on a cold rolling mill comprises an alarm cabinet and a low-voltage cabinet which are connected, the alarm cabinet is connected with a fire detector and a fire extinguishing one-time starting button, and the low-voltage cabinet is connected with a valve of a fire extinguisher, and the fire extinguishing system is characterized in that: the starting device is provided with a multi-time starting button, and comprises normally open contacts B1 and B2, wherein the normally open contact B1 is connected in parallel with a loop where a normally open contact A1 of the one-time starting button is located; and the normally open contact B2 is connected with a PLC in a fire extinguisher starting loop of the low-voltage cabinet. Through the improvement to the start-up circuit of putting out a fire, solve the unable start-up of low-voltage cabinet and spray carbon dioxide defect when the warning cabinet exists unusually, reduce unable start-up risk.
Description
Technical Field
The invention belongs to the technical field of processing and manufacturing of aluminum alloy strips and fire safety, and particularly relates to a fire extinguishing system starting device capable of reducing the risk of incapability of spraying and a working method thereof.
Background
The cold rolling mill has the risk of belt breakage and fire in the production process, so the fire extinguishing system is an important component of the cold rolling mill, the fire extinguishing system generally comprises an alarm cabinet and a low-voltage cabinet, the alarm cabinet has the function of automatically detecting whether a site is on fire or not, the fire extinguishing system can be started to extinguish fire by pressing a fire extinguishing button, when a site temperature-sensitive probe detects a fire alarm or an operator beats the next starting button, the alarm cabinet sends out signals such as sound and light alarm, interlock with the rolling mill and the like, sends out a fire extinguishing instruction to the low-voltage cabinet, and the low-voltage cabinet controls the opening and spraying of a carbon dioxide tank valve. When the alarm cabinet has component failure or other abnormal conditions, the low-voltage cabinet cannot receive a fire extinguishing instruction, cannot start to spray carbon dioxide for fire extinguishing, and cannot extinguish a fire source by one-time spraying, and the system needs to be reset for secondary spraying, so that the optimal time for fire extinguishing is delayed.
Disclosure of Invention
Aiming at the defects and shortcomings in the prior art, the invention provides a starting device of a fire extinguishing system capable of reducing the risk of incapability of spraying and a working method thereof by improving the fire extinguishing starting loop.
The technical scheme is as follows:
the utility model provides a can reduce fire extinguishing systems starting drive of unable injection risk, based on the fire extinguishing systems of cold rolling mill, including alarm cabinet and the low-voltage cabinet that is connected, the alarm cabinet is connected fire detector and is put out a fire a start button, and the valve of fire extinguisher, its characterized in that are connected to the low-voltage cabinet: the starting device is provided with a multi-time starting button, and comprises normally open contacts B1 and B2, wherein the normally open contact B1 is connected in parallel with a loop where a normally open contact A1 of the one-time starting button is located; and the normally open contact B2 is connected with a PLC in a fire extinguisher starting loop of the low-voltage cabinet.
Further, the starting indicator lamp is connected with a fire extinguisher starting loop of the low-voltage cabinet.
Furthermore, the multiple starting button and the starting indicator lamp are both arranged on the cold rolling mill operating platform.
Furthermore, the multiple starting button and the one-time starting button both adopt self-locking mushroom head buttons.
Further, the working method of the device comprises the following steps: when the fire detector responds or a next starting button is clicked, the PLC receives a starting signal and controls the fire extinguisher to start and spray for 1 time;
when the starting button is pressed for multiple times for the first time, the PLC controls the fire extinguisher to start spraying for 1 time, if a starting signal or multiple starting signals are received again in the preset time, the fire extinguisher does not start spraying again, and if the starting signal or multiple starting signals are received again after the preset time is exceeded, the fire extinguisher starts spraying again.
Further, the number of times that the PLC control fire extinguisher is started corresponds to the number of the indicator lamps that light up, 1 indicator lamp will light up when starting 1 time, 2 indicator lamps will light up simultaneously when starting 2 times, and 3 indicator lamps will light up simultaneously when starting 3 times.
According to the invention and the preferred scheme, a multi-time starting button and a starting indicator lamp are additionally arranged on an operation table of the cold rolling mill, and a multi-time starting button circuit is simultaneously connected to the low-voltage cabinet and the alarm cabinet, so that a starting signal can be simultaneously sent to the low-voltage cabinet and the alarm cabinet after the multi-time starting button is pressed down, on one hand, a redundant emergency function when the alarm cabinet is abnormal is achieved, on the other hand, the limitation that only one-time spraying can be achieved by bypassing the one-time starting button can be realized, the optimal time for fire extinguishment is avoided, and meanwhile, the occurrence of misjudgment is avoided as much as possible through ingenious design.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
fig. 1 is a schematic view of the overall structure of a fire extinguishing system according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of the multiple start button connection according to the embodiment of the present invention.
FIG. 3 is a logic diagram of 3-time injection control according to an embodiment of the present invention.
Detailed Description
In order to make the features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail as follows:
referring to fig. 1, taking the fire extinguishing system of 1850mm six-roller cold rolling mill as an example, 1 is a fire extinguishing system alarm cabinet, 2 is a fire detector, 3 is a start button, 4 is an audible and visual alarm, 5 is a cold rolling mill control system, when the fire detector detects a fire or an operator presses the start button 3, the alarm cabinet will send out audible and visual alarm signals and interlocking signals to the audible and visual alarm and the cold rolling mill control system. And the fire extinguishing instruction is sent to the low-voltage cabinet 6, the valve 7 on the low-voltage cabinet control site is opened, and carbon dioxide in the storage tank 8 is sprayed to the cold rolling mill 9 to extinguish the fire after the valve is opened.
Because the low-voltage cabinet must receive the alarm cabinet instruction of putting out a fire and just can start the valve, when alarm cabinet 1 has components and parts trouble or other abnormal conditions, will lead to the low-voltage cabinet can't receive the instruction of putting out a fire, delays the opportunity of putting out a fire. To solve this hidden trouble, the present embodiment adds a multiple start button 10 and a start indicator lamp 11 to the cold rolling mill operating floor.
Wherein, the detailed electric wiring of many starting button is as shown in fig. 2, A is a starting button in the picture, its normally open contact signal A1 receives the alarm cabinet, B is a many starting button, its normally open contact signal B1 connects in parallel to a starting button A1 contact circuit, PLC in the fire extinguisher starting loop in the middle of the low-voltage cabinet is received to normally open contact signal B2, in this electric topological structure, will send signal to alarm cabinet and low-voltage cabinet simultaneously after beating many starting button down, consequently many starting button possesses a starting button function, will send audible and visual alarm simultaneously after beating many starting button down, the function that a starting button such as interlocking possessed.
In order to realize that the start button has the injection function many times, this embodiment adjusts the program command that low-voltage cabinet PLC wrote in advance: when the start button is pressed next time, the low-voltage cabinet only receives a start signal once and starts to spray for 1 time; when the start button is pressed for multiple times, the low-voltage cabinet firstly receives multiple start signals to start spraying for 1 time, if the start signal is received again within 2 seconds, the 2 nd time spraying is not started (according to the test, because the start button is pressed for multiple times, a signal needs to be transferred through the alarm cabinet, the low-voltage cabinet preferentially receives the multiple start signals and receives the start signal again after about 1 second), and if the start signal or the multiple start signals are received again after more than 2 seconds, the spraying is started again. Due to the limited capacity of the carbon dioxide storage tank, up to 3 injections are allowed, and 3-injection programming logic is implemented as shown in fig. 3, wherein 1 injection can be initiated by either a fire detector, a single start button, or multiple start buttons, and can be initiated by resetting and pressing the multiple start button again when 2 or 3 injections are required. The method also solves the problem that when the alarm cabinet is abnormal, the function of spraying for 3 times can be realized by pressing the starting button for 3 times.
In order to prevent an operator from forgetting to shoot a start button several times in a nervousness and confusion when the operator catches fire, 3 start indicator lamps are added to the operation console in the embodiment, and the fact that the start times correspond to the number of the turned-on indicator lamps can be achieved through PLC programming, namely 1 indicator lamp will be turned on when the operator starts the operation console 1 time, 2 indicator lamps will be turned on when the operator starts the operation console 2 times, and 3 indicator lamps will be turned on when the operator starts the operation console 3 times. The starting times can be conveniently confirmed by an operator, and the operator can restart the electric cooker according to the fire condition, so that the waste of carbon dioxide caused by pressing a starting button for many times due to tension is avoided. On the other hand, if the fire is large, the operator can conveniently confirm that the engine is started for 3 times and withdraw to a safe position in time.
This embodiment is through increasing a start button many times, but realized clapping many times start button direct control valve and spray the carbon dioxide function, and trigger audible and visual warning simultaneously, the function that interlock etc. once button possessed, solved when there is the unusual accessible of alarm cabinet clapping many times start button and spray the carbon dioxide function, the unable start-up risk of fire extinguishing system has been reduced, and can realize many times the function owing to bypassed the restriction of alarm cabinet, and increase corresponding start indicator lamp and can be convenient for operating personnel and know the start-up number of times, obtain good application at the scene.
In this embodiment design, if alarm cabinet itself does not break down, no matter beat earlier many times start button or beat earlier the start button homoenergetic start-up injection of next time, avoided operating personnel to consider that it delays the time of putting out a fire to beat earlier which button.
Preferably, for preventing that operating personnel from shaking because of nervous hand leads to triggering a lot of actuating signal mistake to press 2 times or 3 actuating signal, this embodiment can be through setting up the interlocking to PLC, for example, 2 nd injection need press a lot of actuating button and be no less than 2 seconds and just can start spraying, and 3 rd injection needs to reset a lot of actuating button and is no less than 2 seconds to press a lot of actuating button again and be no less than 2 seconds and just can start 3 rd injection.
The preferred, for make things convenient for operating personnel to confirm whether to clap down the button, the start button of once and the start button many times that this embodiment adopted are the button of the first button of self-locking type mushroom, can make operating personnel will pin after clapping down, need rotate the mushroom head just can reset.
The present invention is not limited to the above preferred embodiments, and other various fire extinguishing system starting devices and operating methods thereof for reducing the risk of misfiring can be obtained by anyone in light of the present invention.
Claims (4)
1. The utility model provides a can reduce fire extinguishing systems starting drive of unable injection risk, based on the fire extinguishing systems of cold rolling mill, including alarm cabinet and the low-voltage cabinet that is connected, the alarm cabinet is connected fire detector and is put out a fire a start button, and the valve of fire extinguisher, its characterized in that are connected to the low-voltage cabinet: the starting device is provided with a multi-time starting button, and comprises normally open contacts B1 and B2, wherein the normally open contact B1 is connected in parallel with a loop where a normally open contact A1 of the one-time starting button is located; the normally open contact B2 is connected with a PLC in a fire extinguisher starting loop of the low-voltage cabinet;
after the multi-time starting button is pressed, signals are sent to the alarm cabinet and the low-voltage cabinet at the same time, so that the multi-time starting button has the function of a one-time starting button, and after the multi-time starting button is pressed, the functions of the one-time starting button including audible and visual alarm and interlocking are sent at the same time;
the working method comprises the following steps: when the fire detector responds or a next starting button is clicked, the PLC receives a starting signal and controls the fire extinguisher to start and spray for 1 time;
when the starting button is pressed for multiple times for the first time, the PLC controls the fire extinguisher to start spraying for 1 time, if a starting signal or multiple starting signals are received again in the preset time, the fire extinguisher does not start spraying again, and if the starting signal or multiple starting signals are received again after the preset time is exceeded, the fire extinguisher starts spraying again;
the PLC is used for controlling the starting times of the fire extinguisher to correspond to the lighting quantity of the indicator lamps, namely 1 indicator lamp can be lighted after 1 time of starting, 2 indicator lamps can be lighted simultaneously after 2 times of starting, and 3 indicator lamps can be lighted simultaneously after 3 times of starting.
2. Fire suppression system activation apparatus according to claim 1, with reduced risk of misfiring, characterized by: the fire extinguisher starting circuit is characterized by further comprising a starting indicator lamp connected with the fire extinguisher starting circuit of the low-voltage cabinet.
3. Fire suppression system activation apparatus according to claim 2, with reduced risk of failure to spray, characterized by: the multiple starting button and the starting indicator lamp are both arranged on the cold rolling mill operating platform.
4. Fire suppression system activation apparatus according to claim 1, with reduced risk of misfiring, characterized by: the multiple starting button and the one-time starting button both adopt self-locking mushroom head buttons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210297852.6A CN114699700B (en) | 2022-03-25 | 2022-03-25 | Fire extinguishing system starting device capable of reducing risk of incapability of spraying and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210297852.6A CN114699700B (en) | 2022-03-25 | 2022-03-25 | Fire extinguishing system starting device capable of reducing risk of incapability of spraying and working method thereof |
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| Publication Number | Publication Date |
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| CN114699700A CN114699700A (en) | 2022-07-05 |
| CN114699700B true CN114699700B (en) | 2022-12-06 |
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| CN202210297852.6A Active CN114699700B (en) | 2022-03-25 | 2022-03-25 | Fire extinguishing system starting device capable of reducing risk of incapability of spraying and working method thereof |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1482731A (en) * | 1975-03-06 | 1977-08-10 | Tiedtke K | Method of automatically signalling and extinguishing fires and fire extinguishing equipment |
| AT10676U1 (en) * | 2008-07-21 | 2009-08-15 | Keba Ag | METHOD FOR OPERATING A MOBILE HAND CONTROL DEVICE FOR DISTRIBUTING OR RELEASING POTENTIALLY DANGEROUS CONTROL COMMANDS AND CORRESPONDING HAND CONTROL DEVICE |
| CN102294099B (en) * | 2010-06-28 | 2016-08-03 | 陕西兰德森茂消防科技有限公司 | Extinguishment control system |
| CN103977516B (en) * | 2014-05-21 | 2017-03-01 | 中国科学技术大学 | A kind of lithium system battery energy storage unit fire-fighting system |
| CN214063258U (en) * | 2020-11-03 | 2021-08-27 | 北京东方神龙环保设备制造有限公司 | Emergency starting device for full-pressure starting type fire pump |
| CN215585304U (en) * | 2021-01-21 | 2022-01-21 | 国网河北省电力有限公司雄安新区供电公司 | Full nitrogen fire extinguishing systems of city utility tunnel electric power cabin distributing type |
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| CN114699700A (en) | 2022-07-05 |
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