CN202078685U - Glass ball sprinkler head and firefighting supervision system - Google Patents
Glass ball sprinkler head and firefighting supervision system Download PDFInfo
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- CN202078685U CN202078685U CN2011201435106U CN201120143510U CN202078685U CN 202078685 U CN202078685 U CN 202078685U CN 2011201435106 U CN2011201435106 U CN 2011201435106U CN 201120143510 U CN201120143510 U CN 201120143510U CN 202078685 U CN202078685 U CN 202078685U
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Abstract
The utility model relates to a glass ball sprinkler head. The glass ball sprinkler head comprises spray head bodies, a sealing piece, a glass ball, a controller, a resistance wire and a fastening piece, wherein the controller is fixed on the spray head bodies through the fastening piece and is used for receiving an external command and controlling heating of the resistance wire; the resistance wire is positioned at the position corresponding to the glass ball; and after the resistance wire is heated, the glass ball is burst. The utility model also provides a firefighting supervision system comprising a data monitoring center, a signal transmitting device and at least one firefighting supervision system of the glass ball sprinkler head. According to the technical scheme of the utility model, the glass ball in the spray heads are burst in advance through manual intervention, so that water spray is started to extinguish fire and the fire source can be effectively blocked. In addition, the spray head can be subjected to self detection of reliability; and when failing, the spray head can be maintained timely. Furthermore, each spray head has an only identity number, so that regionalized firefighting in advance is realized.
Description
Technical field
The utility model relates to fire-fighting domain, the fire-fighting supervisory systems that relates in particular to a kind of ripple Ryukyu's sprinkler tip and comprise this shower nozzle.
Background technology
Spraying system of fire fighting is a kind of fire fighting extinguisher, is to use at present very a kind of widely fixedly fire fighting device, and it has characteristics such as cheap, fire-fighting efficiency height, can be divided into Artificial Control and two kinds of forms of control automatically according to the function difference.Wherein controlling spraying system of fire fighting automatically comprises the temp sensing type spraying system of fire fighting and feels two kinds of cigarette formula spraying system of fire fighting.
The temp sensing type spraying system of fire fighting, the roof fire water box is filled water at ordinary times, shower nozzle (generally being 68 ° of C) explosion automatically after temperature reaches uniform temperature when breaking out of fire, water in the pipe is ejection automatically under the effect of roof fire water box, at this moment wet alarm valve can be opened automatically, pressure switch in the valve is opened automatically, and this pressure switch has root holding wire and fire pump chain, and pump has just started automatically.Fire pump is provided to fire hydrant, roof tank and shower nozzle to the water in pond by pipeline then, and whole fire-fighting system is started working.
Sense cigarette formula spraying system of fire fighting, system is equipped with cigarette sense probe flue gas is detected, when flue gas reaches finite concentration, sense cigarette probe is reported to the police, and feeds back to the audible-visual annunciator action behind host acknowledgement, sounds or the blinking light alerts people, the anti-smoke exhaust fan of linkage starts, begin smoke evacuation, start water pump simultaneously and supply water to main conduit, spray head begins water spray work.
In the temp sensing type spraying system of fire fighting, bulb sprinkler head is most important induction components and parts, is made up of the glass marble of sprayer body, seal and heat-sensitive element.Be installed on anti-the expansion in the district by pipe network, work as breaking out of fire, when environment temperature reached rated function temperature, the expansion of liquids in the glass marble broke glass marble, and seal comes off, and shower nozzle is opened sprinkling fire automatically.When adopting this mode fire-fighting fire extinguishing, have only environment temperature to reach the predetermined work temperature, glass marble just can break, and then sprinkling fire.Even like this after knowing fire condition, can not reach the effect of the good control intensity of a fire.And under this implementation, will break as long as reach the regional glass marble of operating temperature, can not realize the compartmentalization management and control, can not concentrate the serious place of the water yield control intensity of a fire.
The utility model content
The purpose of this utility model provides a kind of bulb sprinkler head that sprayed water by manual intervention, and the fire-fighting supervisory systems that comprises this bulb sprinkler head.
As the one side of technical solutions of the utility model, a kind of bulb sprinkler head is provided, comprise sprayer body, seal, glass marble, especially, also comprise controller, resistance wire, securing member,
Described controller is fixed on the described sprayer body by described securing member, described controller is used to receive external command, control the heating of described resistance wire, described resistance wire be positioned at the corresponding position of described glass marble on, make described glass marble explosion after the described resistance wire heating.
Further, described controller comprises communication module, processing module, power module, electronic switch,
Described processing module links to each other with described communication module, described power module, described electronic switch respectively, and described power module also links to each other with the two ends of described resistance wire respectively with described electronic switch;
Described communication module is used to receive external command and is sent to described processing module,
Described processing module is used to control the on off operating mode of described electronic switch,
Described power module is used to heat described resistance wire.
Further, described communication module receives external command by wire communication mode or communication.
Further, described controller also comprises temperature inductor, and described temperature inductor links to each other with described processing module;
Described temperature inductor is used to obtain the heating-up temperature of described resistance wire, be sent to described processing module, and be sent to the data monitor center of described bulb sprinkler head outside via described communication module, judge the reliability of described resistance wire by described data monitor center;
Perhaps, described temperature inductor obtains the heating-up temperature of described resistance wire, is sent to described processing module, judges the reliability of described resistance wire by described processing module, and via described communication module judged result is sent to described data monitor center.
Further, preserve the identity coding information of this bulb sprinkler head in the described processing module.
Further, described electronic switch is the NMOS pipe, and the grid of described NMOS pipe links to each other with described processing module; The drain electrode of described NMOS pipe links to each other with an end of described resistance wire; The source electrode and the substrate of described NMOS pipe join, and common ground.
As technical solutions of the utility model on the other hand, provide a kind of fire-fighting supervisory systems, comprise data monitor center, sender unit, the bulb sprinkler head that at least one is above-mentioned,
Described sender unit communicates with described data monitor center and described bulb sprinkler head respectively,
Described data monitor center is controlled described sender unit and is sent signal, starts described bulb sprinkler head and begins water spray.
Further, the fire-fighting supervisory systems also comprises at least one smoke detector, and described smoke detector links to each other with controller in the described bulb sprinkler head,
Described smoke detector is used to obtain smog information, and is sent to described controller processing; Described controller also is sent to described data monitor center with smog information processing result.
Further, comprise temperature inductor in the controller of described bulb sprinkler head,
Described data monitor center sends signal by described sender unit, controls described bulb sprinkler head and carries out from detecting.
Further, preserve the identity coding information of this bulb sprinkler head in the processing module of described bulb sprinkler head,
Described data monitor center sends signal by described sender unit, and begins water spray according to the different bulb sprinkler head of described identity coding information control.
The beneficial effects of the utility model are:
1. the technical solution of the utility model is the improvement to the enclosed fire-fighting system, do not change existing fire-fighting monitoring system, but on the basis of existing technology, realize the hard to bear manual intervention of a kind of energy, make the glass marble explosion in the shower nozzle in advance, and then open the novel glass ball sprinkler tip of sprinkling fire and the fire-fighting supervisory systems that constitutes by this shower nozzle.The technical solution of the utility model just can be blocked burning things which may cause a fire disaster effectively, and then blocks spreading of fire.
2. the technical solution of the utility model also can carry out detecting the reliability of each bulb sprinkler head from detecting.So just can when breaking down, in time safeguard in shower nozzle.
3. each shower nozzle all has unique identity coding, and data monitor center can be controlled each shower nozzle respectively, thereby realizes the purpose of compartmentalization fire-fighting in advance.That is to say, be not that shower nozzles all in the control system starts water spray simultaneously, but selectively start some regional shower nozzle, so just can reduce some unnecessary loss.
Description of drawings
Fig. 1 is the structural representation of the utility model bulb sprinkler head;
Fig. 2 is the structural representation of first kind of implementation of wireless controller in the utility model;
Fig. 3 is the structural representation of second kind of implementation of the wireless controller in the utility model;
Fig. 4 is presented as the structural representation of NMOS pipe for electronic switch in first kind of implementation of the wireless controller in the utility model;
Fig. 5 is the formation schematic diagram of fire-fighting supervisory systems of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used to explain the utility model, is not to be used to limit scope of the present utility model.
As the one side of technical solutions of the utility model, provide a kind of bulb sprinkler head.As shown in Figure 1, this bulb sprinkler head 300 comprises glass marble 1, controller 2, resistance wire 4, the securing member 3 of sprayer body, seal, heat-sensitive element.Wherein, controller 2 is fixed on the sprayer body by securing member 3, and controller 2 is used to receive external command, controlling resistance silk 4 heating, resistance wire 4 be positioned at glass marble 1 outside with glass marble 1 corresponding position on, and and glass marble 1 between be provided with a gap; Make glass marble 1 explosion after resistance wire 4 heating, and then open shower nozzle.
Existing bulb sprinkler head is made of sprayer body, seal and glass marble 1, and wherein, the sprayer body bottom is the pipe joint that connects water pipe; Described seal is set in the pipe joint, and seal links to each other with glass marble.During breaking out of fire, after environment temperature reached specified operating temperature, the expansion of liquids in the glass marble 1 broke glass marble 1, thereby seal is come off, and shower nozzle is opened and sprayed to the protection zone by the watering shape of setting and puts out a fire.The utility model has been set up controller 2, resistance wire 4 and securing member 3 on the basis of technique scheme, thereby when detecting fire, shower nozzle 300 can be according to the control instruction of outside, make environment temperature reach rated temperature as early as possible by resistive heater 4, thereby accelerate to break with the glass marble 1 of resistance wire 4 adjacent settings, realize the glass marble of explosion in advance 1 of manual intervention, and then block burning things which may cause a fire disaster effectively.
As shown in Figure 2, controller 2 comprises communication module 21, processing module 22, power module 23, electronic switch 24.Processing module 22 links to each other with communication module 21, power module 23, electronic switch 24 respectively, and power module 23 also links to each other with the two ends of resistance wire 4 respectively with electronic switch 24.Wherein, communication module 21 is used to receive external command and is sent to processing module 22, and processing module 22 is used to control the on off operating mode of electronic switch 24, and power module 23 is used for resistive heater 4.Communication module 21 can be realized itself and the communicating by letter of external equipment by wire communication mode or communication, receives external command.As shown in Figure 1, communication module 21 in the controller 2 receives external command by antenna 5, promptly realize and outside communicating by letter with communication, processing module 22 just can be conducting state according to the instruction control electronic switch 24 that receives, power module 23 beginnings make it produce heat energy to resistance wire 4 power supplies.When the heat energy of resistance wire 4 releases makes that near glass marble 1 environment temperature reaches rated temperature, glass marble 1 explosion, shower nozzle 300 begins water spray.
As shown in Figure 3, controller 2 also comprises temperature inductor 25, and temperature inductor 25 links to each other with processing module 22.Temperature inductor 25 is used to obtain the heating-up temperature of resistance wire 4, is sent to processing module 22, and is sent to bulb sprinkler head 300 outsides via communication module 21.
Further, also preserve the identity coding information of this bulb sprinkler head in the processing module 22.Thereby realize compartmentalization management and control to a plurality of shower nozzles.
Referring to Fig. 3, Fig. 4, electronic switch 24 is NMOS pipe 241, and the grid of NMOS pipe links to each other with processing module 22; The drain electrode of NMOS pipe links to each other with an end of resistance wire 4; The source electrode and the substrate of NMOS pipe join, and common ground.NMOS pipe 241 conducting or end under the control of processing module 22, thus whether control power module 23 is to resistance wire 4 power supplies.In addition, electronic switch 24 also can be the switch of the controlled realization connecting and disconnecting of the circuit of energy such as PMOS pipe or relay.
As technical solutions of the utility model on the other hand, provide a kind of fire-fighting supervisory systems, as shown in Figure 5, this system comprises data monitor center 100, sender unit 200, the bulb sprinkler head 300 that at least one is above-mentioned.Sender unit 200 communicates with data monitor center 100 and bulb sprinkler head 300 respectively.Data monitor center 100 control signal dispensing devices 200 send signal, start bulb sprinkler head 300 and begin water spray.
Further, the fire-fighting supervisory systems also can comprise at least one smoke detector, and smoke detector links to each other with controller 2 in the bulb sprinkler head.Smoke detector is used to obtain smog information, and is sent to controller 2 and carries out data and handle; Handle back judgement breaking out of fire if controller carries out data to smog information, then judged result is sent to sender unit 200 with wire communication mode or communication, and then is sent to data monitor center 100 by sender unit 200.Wherein smoke detector can be ionic formula smoke detector or photo-electric type smoke detector.
Further, when comprising temperature inductor 25 in the controller 2 of bulb sprinkler head 300, data monitor center 100 also sends signal by sender unit 200, and control bulb sprinkler head 300 carries out from detecting.Temperature inductor 25 is used to obtain the heat that resistance wire 4 heating discharge, and the heating-up temperature of obtaining is sent to data monitor center 100 via the processing module 22 of shower nozzle inside and the sender unit 200 of communication module 21 and shower nozzle outside, judge the functional reliability of this bulb sprinkler head 300 by data monitor center 100, conveniently when shower nozzle breaks down, in time safeguard.Perhaps, after temperature inductor 25 obtains the heat of resistance wire 4 heating releases, be sent to processing module 22, judge the functional reliability of shower nozzle 300 according to this heat by processing module 22, and judged result transfers to preservation in the data monitor center 100 by communication module 21 and sender unit 200 the most at last, can when accident occurring, in time equipment be safeguarded equally.
Further, when preserving the identity coding information of this bulb sprinkler head 300 in the processing module 22 of bulb sprinkler head 300, data monitor center 100 also sends signal by sender unit 200, and begins water spray according to the different bulb sprinkler head 300 of identity coding information control.Thereby realize compartmentalization management and control to a plurality of shower nozzles.
Below the bulb sprinkler head of the present utility model and the course of work that comprises the fire-fighting supervisory systems of this shower nozzle are simply introduced.
1. smoke detector obtains the smog information of scene of fire, and is sent to bulb sprinkler head, carries out data by the controller in it and handles, and judges whether breaking out of fire, and sends alarm signal by sender unit 200 to data monitor center 100.
2. after data monitor center 100 gets access to fire information, according to following steps control shower nozzle explosion in advance water spray.
At first, operating personnel selectively start shower nozzle according to the actual condition of a fire by sender unit 200.Because all preserve its identity coding information separately in each shower nozzle, the identity coding information of the shower nozzle that affix is to be started in the instruction that sends, but just the control shower nozzle of compartmentalization starts water spray.Promptly judge where need first water spray, thereby reach the purpose of blocking-up burning things which may cause a fire disaster or retardance fire spread by operating personnel.
Secondly, shower nozzle receives instruction by the communication module 21 of controller 2 inside, and be sent to processing module 22, whether judge this instruction at self by processing module 22, if not at this shower nozzle, then shower nozzle is not reacted, if at this shower nozzle, then processing module 22 control electronic switches 24 are in conducting state, and power module 23 provides electric energy to coupled resistance wire 4, by resistance wire 4 electric energy is converted into heat energy output, the environment temperature of rising glass marble 1 annex.
At last, glass marble 1 induced environment temperature, and explosion when reaching rated temperature make seal come off, and shower nozzle starts water spray.
3. when fire condition not occurring, data monitor center 100 can detect the reliability of shower nozzle according to following steps.
At first, data monitor center 100 sends instruction by sender unit 200 to shower nozzle.
Secondly, shower nozzle receives instruction by the communication module 21 of controller 2 inside, and be sent to processing module 22, processing module 22 judges whether at certainly after one's death, then control electronic switch 24 conductings, and then power module 23 is to resistance wire 4 power supply, and resistance wire 4 is converted to heat energy output, and environment temperature similarly raises.
Then, temperature sensor obtains environment temperature, and the temperature information that obtains is sent to processing module 22 in real time, and then can be sent to data monitor center 100 by communication module 21 and sender unit 200.
At last, data monitor center 100 receives temperature information, judges the functional reliability of shower nozzle.The specific implementation method is as follows.
Δ T=Δ Q/ (C*m), wherein,
Δ T for the temperature that changes [during heat absorption, Δ T=T-T0(T is the end temperature, and T0 is an initial temperature); During heat release, Δ T=T0-T]; Δ Q is the heat of emitting or absorbing; C is a specific heat capacity; M is the quality (unit is kg) of object.
The specific heat capacity C=1862.13J/ (kgK) of the liquid (ether) in the glass marble, thermal power P=V*V/R;
Heat Q ˊ=P*t that the resistance wire heating produces, wherein, resistance wire resistance R, the voltage battery voltage V that applies, consideration resistance wire and glass marble are close to, and fill the gap with heat-conducting silicone grease, if thermal power is bigger, and heat time heating time, heat loss Q 〞 was less, and can ignore than under the short situation.So, setting-up time t is heat time heating time, during as if the energy normal heating, and Δ Q ≈ Q ˊ=V*V*t/R, the temperature that is produced rises to Δ T=V*V*t/ (R*C*m), i.e. Δ T=(V
2* t)/(R * C * m)=K * t, wherein, if voltage V is constant, then K is a constant.That is to say that ascending temperature was directly proportional with heat time heating time,, just can judge whether operate as normal of resistance wire by the special time of variation of temperature and setting.For example set resistance wire 4 release heat environment temperature is raise 5 ℃, judge the functional reliability of shower nozzle by the used time of heating up.Just can detect the heating-up time of resistance wire 4, the functional reliability of resistance wire 4 by above-mentioned from detecting, whether normal whether the power supply capacity that also can detect power module 23 normally and the information of the aspect such as of communicating by letter of shower nozzle and data monitor center 100.
In above-mentioned reliability testing process, data monitor center 100 can be one by one sends instruction to shower nozzle, judge the reliability of this shower nozzle after, send instruction, the testing of all shower nozzles in finishing system to another shower nozzle again.Data monitor center 100 also can send to a plurality of shower nozzles in batches, simultaneously and instruct, and detects the reliability of shower nozzle.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (11)
1. a bulb sprinkler head comprises sprayer body, seal, glass marble, it is characterized in that, also comprises controller, resistance wire, securing member,
Described controller is fixed on the described sprayer body by described securing member, described controller is used to receive external command, control the heating of described resistance wire, described resistance wire be positioned at the corresponding position of described glass marble on, make described glass marble explosion after the described resistance wire heating.
2. according to the described bulb sprinkler head of claim 1, it is characterized in that,
Described controller comprises communication module, processing module, power module, electronic switch,
Described processing module links to each other with described communication module, described power module, described electronic switch respectively, and described power module also links to each other with the two ends of described resistance wire respectively with described electronic switch;
Described communication module is used to receive external command and is sent to described processing module,
Described processing module is used to control the on off operating mode of described electronic switch,
Described power module is used to heat described resistance wire.
3. according to the described bulb sprinkler head of claim 2, it is characterized in that described communication module receives external command by wire communication mode or communication.
4. according to the described bulb sprinkler head of claim 2, it is characterized in that,
Described controller also comprises temperature inductor, and described temperature inductor links to each other with described processing module;
Described temperature inductor is used to obtain the heating-up temperature of described resistance wire, be sent to described processing module, and be sent to the data monitor center of described bulb sprinkler head outside via described communication module, judge the reliability of described resistance wire by described data monitor center;
Perhaps, described temperature inductor obtains the heating-up temperature of described resistance wire, is sent to described processing module, judges the reliability of described resistance wire by described processing module, and via described communication module judged result is sent to described data monitor center.
5. according to claim 2,3 or 4 described bulb sprinkler heads, it is characterized in that, preserve the identity coding information of this bulb sprinkler head in the described processing module.
6. according to claim 2,3 or 4 described bulb sprinkler heads, it is characterized in that described electronic switch is the NMOS pipe,
The grid of described NMOS pipe links to each other with described processing module; The drain electrode of described NMOS pipe links to each other with an end of described resistance wire; The source electrode and the substrate of described NMOS pipe join, and common ground.
7. according to the described bulb sprinkler head of claim 5, it is characterized in that described electronic switch is the NMOS pipe,
The grid of described NMOS pipe links to each other with described processing module; The drain electrode of described NMOS pipe links to each other with an end of described resistance wire; The source electrode and the substrate of described NMOS pipe join, and common ground.
8. a fire-fighting supervisory systems is characterized in that, comprises data monitor center, sender unit, at least one is as each described bulb sprinkler head of claim 1 to 7,
Described sender unit communicates with described data monitor center and described bulb sprinkler head respectively,
Described data monitor center is controlled described sender unit and is sent signal, starts described bulb sprinkler head and begins water spray.
9. according to the described fire-fighting supervisory systems of claim 8, it is characterized in that, also comprise at least one smoke detector, described smoke detector links to each other with controller in the described bulb sprinkler head,
Described smoke detector is used to obtain smog information, and is sent to described controller processing; Described controller also is sent to described data monitor center with smog information processing result.
10. according to claim 8 or 9 described fire-fighting supervisory systems, it is characterized in that, comprise temperature inductor in the controller of described bulb sprinkler head,
Described data monitor center sends signal by described sender unit, controls described bulb sprinkler head and carries out from detecting.
11., it is characterized in that according to claim 8 or 9 described fire-fighting supervisory systems, preserve the identity coding information of this bulb sprinkler head in the processing module of described bulb sprinkler head,
Described data monitor center sends signal by described sender unit, and begins water spray according to the different bulb sprinkler head of described identity coding information control.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011201435106U CN202078685U (en) | 2011-05-09 | 2011-05-09 | Glass ball sprinkler head and firefighting supervision system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011201435106U CN202078685U (en) | 2011-05-09 | 2011-05-09 | Glass ball sprinkler head and firefighting supervision system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104492017A (en) * | 2014-11-26 | 2015-04-08 | 山西新思备科技股份有限公司 | Mutual-operation automation double-control type water spray system opening technology |
| CN108371774A (en) * | 2018-04-24 | 2018-08-07 | 诸暨市海王消防设备有限公司 | A kind of spray prewarning controller |
| CN110152230A (en) * | 2019-01-15 | 2019-08-23 | 沈阳飞龙达智能科技有限公司 | A kind of fire-fighting automatic shower nozzle |
| CN110755795A (en) * | 2019-11-05 | 2020-02-07 | 广州供电局有限公司 | Fire extinguishing device and fire extinguishing system |
| CN111388931A (en) * | 2020-03-17 | 2020-07-10 | 福建天广消防有限公司 | Glass ball integrity testing device and method for glass ball water spray nozzle |
| CN111544819A (en) * | 2020-06-01 | 2020-08-18 | 中国中元国际工程有限公司 | Intelligent automatic fire-fighting water spraying method |
| CN112312976A (en) * | 2018-12-05 | 2021-02-02 | 马里奥夫有限公司 | Crack detection function for fire protection sprinklers with frangible bubbles |
| CN112351824A (en) * | 2018-07-16 | 2021-02-09 | 马里奥夫有限公司 | Sprinkler and spraying system comprising the same |
| CN112535828A (en) * | 2019-09-20 | 2021-03-23 | 马里奥夫有限公司 | Fire extinguishing system |
| CN115054857A (en) * | 2022-08-18 | 2022-09-16 | 江苏国荣安防装备科技有限公司 | Special remote control actuating mechanism of indoor fire hydrant of intelligence |
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2011
- 2011-05-09 CN CN2011201435106U patent/CN202078685U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104492017A (en) * | 2014-11-26 | 2015-04-08 | 山西新思备科技股份有限公司 | Mutual-operation automation double-control type water spray system opening technology |
| CN108371774A (en) * | 2018-04-24 | 2018-08-07 | 诸暨市海王消防设备有限公司 | A kind of spray prewarning controller |
| CN112351824B (en) * | 2018-07-16 | 2023-08-04 | 马里奥夫有限公司 | Sprinkler and sprinkler system comprising the same |
| CN112351824A (en) * | 2018-07-16 | 2021-02-09 | 马里奥夫有限公司 | Sprinkler and spraying system comprising the same |
| CN112312976B (en) * | 2018-12-05 | 2023-05-23 | 马里奥夫有限公司 | Crack detection function for fire sprinklers with fragile bubbles |
| CN112312976A (en) * | 2018-12-05 | 2021-02-02 | 马里奥夫有限公司 | Crack detection function for fire protection sprinklers with frangible bubbles |
| CN110152230A (en) * | 2019-01-15 | 2019-08-23 | 沈阳飞龙达智能科技有限公司 | A kind of fire-fighting automatic shower nozzle |
| CN112535828A (en) * | 2019-09-20 | 2021-03-23 | 马里奥夫有限公司 | Fire extinguishing system |
| CN110755795A (en) * | 2019-11-05 | 2020-02-07 | 广州供电局有限公司 | Fire extinguishing device and fire extinguishing system |
| CN111388931A (en) * | 2020-03-17 | 2020-07-10 | 福建天广消防有限公司 | Glass ball integrity testing device and method for glass ball water spray nozzle |
| CN111544819A (en) * | 2020-06-01 | 2020-08-18 | 中国中元国际工程有限公司 | Intelligent automatic fire-fighting water spraying method |
| CN115054857A (en) * | 2022-08-18 | 2022-09-16 | 江苏国荣安防装备科技有限公司 | Special remote control actuating mechanism of indoor fire hydrant of intelligence |
| CN115054857B (en) * | 2022-08-18 | 2023-01-06 | 江苏龙力神安防装备科技有限公司 | Special remote control actuating mechanism of indoor fire hydrant of intelligence |
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