CN212416737U - Fire control unit allies oneself with accuse system - Google Patents
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- CN212416737U CN212416737U CN202020763576.4U CN202020763576U CN212416737U CN 212416737 U CN212416737 U CN 212416737U CN 202020763576 U CN202020763576 U CN 202020763576U CN 212416737 U CN212416737 U CN 212416737U
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Abstract
The utility model discloses a fire control unit allies oneself with accuse system, include: the system comprises a premixing type foam fire-fighting component, an on-site mixing type foam fire-fighting component, a spray head and a controller; mix formula foam fire control subassembly in advance includes: the outlet of the synthetic foam tank is communicated with the inlet of the spray head through a first pipeline; the now-mixed foam fire fighting module comprises: the system comprises a water fire-fighting pipe network, a water pump, a foam stock tank and a foam pump, wherein an outlet of the water fire-fighting pipe network is communicated with an inlet of the water pump through a second pipeline, and an outlet of the water pump is communicated with a first pipeline through a third pipeline; a first pressure sensor, a normally open valve and a partition valve are sequentially arranged on the first pipeline according to the flow direction; a second pressure sensor and a first electric valve are sequentially arranged on the second pipeline according to the flow direction; and a third pressure sensor, a second electric valve and a normally closed valve are sequentially arranged on the third pipeline according to the flow direction. The utility model discloses can in time realize the valve and switch, automatic start now mixes formula foam fire control subassembly, improves conflagration processing speed.
Description
Technical Field
The utility model relates to an extra-high voltage transformer substation/convertor station's fire control safety technical field especially relates to a fire control unit allies oneself with accuse system.
Background
PWZ/SP synthetic foam spray fire extinguishing equipment (namely premixed foam) is mostly adopted as fire prevention and control equipment in the ultra-high voltage transformer substation/converter station. In order to enhance the continuous spraying time of the foam, the on-site mixed foam fire-fighting equipment is introduced on the basis of the premixed foam fire-fighting equipment so as to improve the fire-fighting capacity of the extra-high voltage transformer substation/converter station. However, the premixing type foam fire fighting equipment and the mixing type foam fire fighting equipment in the prior art are independent of each other, so that the two sets of equipment cannot realize automatic combined control and can only be manually operated by operators in a stepping manner. Under the condition of sudden fire, the operator manually operates the fire extinguishing device step by step, and the processing time and the initial effective fire extinguishing time of electric network and equipment accidents are greatly wasted.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a fire control unit allies oneself with accuse system to solve prior art and lead to the problem of extravagant effective time of putting out a fire through manual control mixes formula foam fire-fighting equipment in advance and now mixes formula foam fire-fighting equipment.
The embodiment of the utility model discloses following technical scheme:
a fire-fighting device joint control system is used for an extra-high voltage transformer substation or a converter station, and comprises: the system comprises a premixing type foam fire-fighting component, an on-site mixing type foam fire-fighting component, a spray head and a controller; the pre-mixing type foam fire-fighting component comprises: the device comprises a synthetic foam tank and a driving part for driving foam in the synthetic foam tank to be sprayed out, wherein an outlet of the synthetic foam tank is communicated with an inlet of the spray head through a first pipeline; the ready-mix foam fire fighting assembly comprises: the system comprises a water fire-fighting pipe network, a water pump, a foam raw liquid tank and a foam pump, wherein an outlet of the water fire-fighting pipe network is communicated with an inlet of the water pump through a second pipeline, an outlet of the water pump is communicated with a first pipeline through a third pipeline, an outlet of the foam raw liquid tank is communicated with an inlet of the foam pump through a fourth pipeline, an outlet of the foam pump is communicated with the third pipeline through a fifth pipeline, and a liquid level sensor is arranged at the bottom of the foam raw liquid tank; a first pressure sensor, a normally open valve and a partition valve are sequentially arranged on the first pipeline according to the flow direction, the normally open valve is positioned on the upstream of the communication port of the first pipeline and the third pipeline, and the partition valve is positioned on the downstream of the communication port of the first pipeline and the third pipeline; a second pressure sensor and a first electric valve are sequentially arranged on the second pipeline according to the flow direction; a third pressure sensor, a second electric valve and a normally-closed valve are sequentially arranged on the third pipeline according to the flow direction, the second electric valve is positioned at the upstream of a communication port of the third pipeline and the fourth pipeline, and the normally-closed valve is positioned at the downstream of the communication port of the third pipeline and the fourth pipeline; the controller is electrically connected to the driving unit, the partition valve, the water pump, the foam pump, the first pressure sensor, the second pressure sensor, the third pressure sensor, the first electrically operated valve, the second electrically operated valve, the normally open valve, the normally closed valve, and the liquid level sensor, respectively.
Further, the fire fighting device joint control system further comprises: the first battery and the second battery are both electrically connected with the controller.
Further: the cathode of the first battery is electrically connected with the drain electrode of the first field effect transistor, and the source electrode of the first field effect transistor is electrically connected with the drain electrode of the second field effect transistor; the cathode of the second battery is electrically connected with the drain electrode of a third field effect transistor, and the source electrode of the third field effect transistor is electrically connected with the drain electrode of a fourth field effect transistor; one end of the controller is electrically connected with the source electrode of the second field effect transistor and the source electrode of the fourth field effect transistor respectively, and the other end of the controller is electrically connected with the anode of the first battery and the anode of the second battery.
Further: the number of the water pump and the first electric valve is two, and the second pipeline comprises: the inlet of the first main path is communicated with the outlet of the fire-fighting water pipe network, the outlet of each first branch path is communicated with the inlet of each water pump, the second pressure sensor is arranged on the first main path, and each first electric valve is arranged on each first branch path.
Further, the third duct includes: the second main path and two second branches communicated with the second main path, an inlet of each second branch is communicated with an outlet of each water pump, an outlet of the second main path is communicated with the first pipeline, a check valve is arranged on each second branch, the third pressure sensor, the second electric valve and the normally-closed valve are arranged on the second main path, and the fourth pipeline is communicated with the second main path.
Therefore, the embodiment of the utility model provides an increase the subassembly such as pressure sensor, valve in order to realize automatic coordinated control between mixing formula foam fire control subassembly and mixing formula foam fire control subassembly in advance, can spray the back that finishes in mixing formula foam fire control subassembly synthetic foam liquid in advance, in time realize the valve and switch, automatic start mixes formula foam fire control subassembly in advance, improves conflagration processing speed, also can avoid the artifical risk that the mistake leaks and brings simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic view of the overall structure of a fire fighting device joint control system according to an embodiment of the present invention;
fig. 2 is a schematic view of a connection structure of a first battery, a second battery and a controller of a fire fighting device joint control system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model discloses fire control unit allies oneself with accuse system. The joint control system is used for an extra-high voltage transformer substation or a converter station. As shown in fig. 1, the fire fighting device joint control system includes: the system comprises a premixing type foam fire-fighting component, a mixing type foam fire-fighting component, a spray head 1 and a controller 2.
Wherein, the premixing type foam fire-fighting component can adopt the prior PWZ/SP synthetic type foam spray fire-fighting equipment. Mix formula foam fire control subassembly in advance includes: a synthetic foam tank 3 and a driving section for driving the foam in the synthetic foam tank 3 to be discharged. The driving part is composed of a control panel 4, a driving device 5 and a power bottle group 6. The control panel 4 is connected with a driving device 5, and the driving device 5 is connected with a power bottle group 6. The power bottle group 6 is connected with the inlet of the synthetic foam tank 3. The outlet of the synthetic foam tank 3 communicates with the inlet of the spray head 1 via a first conduit 7.
The now-mixed foam fire fighting module comprises: a water fire-fighting pipe network 8, a water pump 9, a foam stock tank 10 and a foam pump 11. The outlet of the water fire-fighting pipe network 8 is communicated with the inlet of the water pump 9 through a second pipeline 12. The outlet of the water pump 9 communicates with the first conduit 7 via a third conduit 13. The outlet of the foam concentrate tank 10 communicates with the inlet of the foam pump 11 via a fourth conduit 14. The outlet of the foam pump 11 communicates with the third conduit 13 via a fifth conduit 15. The bottom of the foam concentrate tank 10 is provided with a liquid level sensor 16.
The first pipe 7 is provided with a first pressure sensor 17, a normally open valve 18, and a partition valve 19 in this order. The normally open valve 18 is located upstream of the communication opening of the first duct 7 with the third duct 13. The partition valve 19 is located downstream of the communication opening of the first conduit 7 with the third conduit 13. The second pipe 12 is provided with a second pressure sensor 20 and a first motor-operated valve 21 in this order in the flow direction. The third pipe 13 is provided with a third pressure sensor 22, a second motor-operated valve 23, and a normally closed valve 24 in this order. The second motor-operated valve 23 is located upstream of the communication port of the third duct 13 and the fourth duct 14. The normally-closed valve 24 is located downstream of the communication port of the third duct 13 and the fourth duct 14.
The controller 2 is electrically connected to the driving unit, the partition valve 19, the water pump 9, the foam pump 11, the first pressure sensor 17, the second pressure sensor 20, the third pressure sensor 22, the first electric valve 21, the second electric valve 23, the normally open valve 18, the normally closed valve 24, and the liquid level sensor 16, respectively. The controller 2 may include: PLC sub-controller, water pump sub-controller, foam pump sub-controller and solenoid valve sub-controller. The water pump 9 is electrically connected with the water pump sub-controller, the foam pump 11 is electrically connected with the foam pump sub-controller, the first electric valve 21, the second electric valve 23, the normally open valve 18 and the normally closed valve 24 are electrically connected with the electromagnetic valve sub-controller, and the driving part, the partition valve 19, the first pressure sensor 17, the second pressure sensor 20, the third pressure sensor 22 and the liquid level sensor 16 are electrically connected with the PLC sub-controller.
Preferably, in order to avoid the situation that the combined fire extinguishing cannot be realized due to the failure of one water pump 9, the number of the water pumps 9 and the number of the first electric valves 21 are two, so that one water pump 9 and one first electric valve 21 are used as a standby. The second duct 12 includes: the main circuit comprises a first main circuit and two first branches communicated with the first main circuit. The inlet of the first main path is communicated with the outlet of the water fire-fighting pipe network 8. The outlet of each first branch is communicated with the inlet of each water pump 9. A second pressure sensor 20 is arranged on the first main circuit. Each first electric valve 21 is disposed on each first branch.
Preferably, in order to cooperate with two water pumps 9, the third conduit 13 comprises: a second main path and two second branches communicating with the second main path. The inlet of each second branch is communicated with the outlet of each water pump 9. The outlet of the second main path communicates with a first conduit 7. A check valve 25 is disposed on each second branch to prevent water from flowing backwards. A third pressure sensor 22, a second electrically operated valve 23 and a normally closed valve 24 are provided on the second main passage. The fourth duct 14 communicates with the second main path.
Thus, when fire is extinguished through the water fire fighting pipe network 8, one water pump 9 can be started to extinguish the fire, and when one water pump 9 or the first electric valve 21 breaks down, the other water pump 9 and the first electric valve 21 can be started in time.
Specifically, as shown in fig. 2, the fire fighting device joint control system further includes: a first battery V1 and a second battery V2. The first battery V1 and the second battery V2 are both electrically connected with the controller 2 for supplying power to the controller 2 so that the controller 2 operates normally. Generally, one of the first battery V1 and the second battery V2 serves as a main battery to supply power to the controller 2, and the other battery serves as a backup battery, so that when the main battery is low in charge, the backup battery can be switched to supply power to the controller 2, and the controller 2 is prevented from being incapable of working normally.
Specifically, the cathode of the first battery V1 is electrically connected to the drain of a first field effect transistor (MOSFET) M1, and the source of the first field effect transistor M1 is electrically connected to the drain of a second field effect transistor M2. The cathode of the second battery V2 is electrically connected with the drain of the third field effect transistor M3, and the source of the third field effect transistor M3 is electrically connected with the drain of the fourth field effect transistor M4. One end of the controller 2 is electrically connected to the source of the second fet M2 and the source of the fourth fet M4, respectively. The other end of the controller 2 is electrically connected to the positive electrode of the first battery V1 and the positive electrode of the second battery V2. The positive electrode of the first cell V1 and the positive electrode of the second cell V2 are electrically connected. When the first battery V1 is required to operate, the first fet M1 and the second fet M2 are turned on, and the third fet M3 and the fourth fet M4 are turned off. When the controller 2 detects that the electric quantity of the first battery V1 is too low, for example, only 10% of electric quantity remains, the controller 2 controls the second fet M2 to turn off, at this time, the second fet M2 is equivalent to a diode, the first battery V1 continues to supply power, the third fet M3 is turned on, so that the first battery V1 and the second battery V2 supply power together, the first fet M1 is turned off, the first battery V1 no longer supplies power to the controller 2, the second battery V2 continues to supply power, the third fet M3 is equivalent to a diode, the fourth fet M4 is turned on, and the power of the second battery V2 reaches a maximum value. Similarly, if the second battery V2 supplies power first and the first battery V1 supplies power later, the third fet M3 and the fourth fet M4 are turned on, the first fet M1 and the second fet M2 are turned off, the fourth fet M4 is turned off first, the first fet M1 is turned on, the third fet M3 is turned off, and the second fet M2 is turned on. By the structure, smooth switching of the batteries is realized, the risks of battery power failure and short circuit are avoided, and the field effect tube is safe and not easy to burn; the problem of reverse charging of the battery is solved, a parallel controller is not required to be additionally arranged, and the cost is reduced.
The working process of the fire fighting device joint control system is as follows: when a fire is detected, the controller 2 sequentially opens the driving part and the partition valve 19 to deliver the synthetic foam liquid in the synthetic foam tank 3 to the spray head 1 to extinguish a fire using the synthetic foam liquid. Specifically, the fire can be monitored by the control panel 4 of the driving part. After the fire condition is monitored, the premixed foam fire-fighting assembly is adopted to extinguish the fire. After the driving part is opened, under the condition that the partition valve 19 is not opened, the power cylinder group 6 is opened to enable nitrogen to be filled into the synthetic foam tank 3, the pressure of the synthetic foam liquid is increased, the pressure value detected by the first pressure sensor 17 is increased from 0, and for the PWZ/SP synthetic type foam spray fire-extinguishing equipment, the pressure is generally increased to 0.5MPa, namely the stable spray condition pressure is reached, so that after the partition valve 19 is opened, the synthetic foam liquid in the synthetic foam tank 3 is used for spray fire-extinguishing. In the course of extinguishing a fire, the pressure value detected by the first pressure sensor 17 is gradually reduced from 0.5MPa as the synthetic foam liquid in the synthetic foam tank 3 is reduced. If the pressure value detected by the first pressure sensor 17 is not greater than the first preset threshold value, the controller 2 closes the normally open valve 18 and opens the normally closed valve 24. The utility model discloses the first predetermined threshold value of preferred embodiment is 0.1 MPa. When the pressure value detected by the first pressure sensor 17 is reduced to the first preset threshold value, it indicates that the synthetic foam liquid in the synthetic foam tank 3 is basically sprayed, and the pre-mixing type foam fire-fighting module cannot perform the function of extinguishing fire. Thus, the normally open valve 18 is closed and the normally closed valve 24 is opened to switch to the now-mixed foam fire fighting module to extinguish the fire from the now-mixed foam fire fighting module. If the pressure value detected by the second pressure sensor 20 is not less than the second preset threshold value, the controller 2 sequentially starts the first electric valve 21 and the water pump 9 to convey water in the water fire-fighting pipe network 8 to the spray head 1 so as to extinguish fire by using water. The second preset threshold of the preferred embodiment of the present invention is 0.4 MPa. If the pressure value that second pressure sensor 20 detected risees to the second and predetermines the threshold value, then reached and started the condition that now mixes formula foam fire control subassembly and put out a fire, can open first motorised valve 21 and water pump 9 in proper order, put out a fire by water delivery by water fire control pipe network 8. If the pressure value detected by the third pressure sensor 22 is not less than the third preset threshold, the controller 2 starts the foam pump 11 to deliver the foam raw liquid in the foam raw liquid tank 10 to the spray head 1, so as to extinguish a fire by using a mixed liquid of water and the foam raw liquid. The utility model discloses the third preset threshold value of preferred embodiment is 0.4MPa to avoid the flow to lead to the protection action inadequately and can't put out a fire. If the pressure value detected by the third pressure sensor 22 rises to a third preset threshold value, the foam pump 11 is started, the foam pump 11 outputs the foam raw liquid in the foam raw liquid tank 10, and the foam raw liquid and water are mixed in the pipeline and then are used as fire extinguishing media to carry out fire extinguishing operation. If the liquid level sensor 16 detects that the liquid level in the foam raw liquid tank 10 is lower than a fourth preset threshold, the controller 2 turns off the foam pump 11 to extinguish the fire with water. The fourth threshold value may be determined according to the size and shape of the foam raw liquid tank 10 or the like. If the liquid level sensor 16 detects that the liquid level in the foam raw liquid tank 10 is lower than the fourth preset threshold, it indicates that the foam raw liquid in the foam raw liquid tank 10 is depleted, and the foam raw liquid can not be provided any more. Thus, the foam pump 11 can be switched off and only water can be used as extinguishing medium for extinguishing the fire. If the pressure value detected by the second pressure sensor 20 is not greater than the fifth preset threshold, the controller 2 turns off the water pump 9 and the foam pump 11. The fifth preset threshold of the preferred embodiment of the present invention is 0.2 MPa. If the pressure value detected by the second pressure sensor 20 is not greater than the fifth preset threshold, it indicates that the flow rate is insufficient, and the water pump 9 and the foam pump 11 should be turned off, so as to avoid damage to the water pump 9 and the foam pump 11.
To sum up, the utility model discloses fire control unit allies oneself with accuse control system increases assemblies such as pressure sensor, valve in order to realize automatic coordinated control between mixing formula foam fire control subassembly and mixing formula foam fire control subassembly in advance, can spray the back that finishes in mixing formula foam fire control subassembly synthetic foam liquid in advance, in time realizes the valve and switches, and automatic start mixes formula foam fire control subassembly in advance, improves conflagration processing speed, also can avoid the risk that artifical mistake hourglass brought simultaneously.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a fire control unit allies oneself with accuse system for extra-high voltage transformer substation or converter station, its characterized in that, fire control unit allies oneself with accuse system and includes: the system comprises a premixing type foam fire-fighting component, an on-site mixing type foam fire-fighting component, a spray head and a controller;
the pre-mixing type foam fire-fighting component comprises: the device comprises a synthetic foam tank and a driving part for driving foam in the synthetic foam tank to be sprayed out, wherein an outlet of the synthetic foam tank is communicated with an inlet of the spray head through a first pipeline;
the ready-mix foam fire fighting assembly comprises: the system comprises a water fire-fighting pipe network, a water pump, a foam raw liquid tank and a foam pump, wherein an outlet of the water fire-fighting pipe network is communicated with an inlet of the water pump through a second pipeline, an outlet of the water pump is communicated with a first pipeline through a third pipeline, an outlet of the foam raw liquid tank is communicated with an inlet of the foam pump through a fourth pipeline, an outlet of the foam pump is communicated with the third pipeline through a fifth pipeline, and a liquid level sensor is arranged at the bottom of the foam raw liquid tank;
a first pressure sensor, a normally open valve and a partition valve are sequentially arranged on the first pipeline according to the flow direction, the normally open valve is positioned on the upstream of the communication port of the first pipeline and the third pipeline, and the partition valve is positioned on the downstream of the communication port of the first pipeline and the third pipeline; a second pressure sensor and a first electric valve are sequentially arranged on the second pipeline according to the flow direction; a third pressure sensor, a second electric valve and a normally-closed valve are sequentially arranged on the third pipeline according to the flow direction, the second electric valve is positioned at the upstream of a communication port of the third pipeline and the fourth pipeline, and the normally-closed valve is positioned at the downstream of the communication port of the third pipeline and the fourth pipeline;
the controller is electrically connected to the driving unit, the partition valve, the water pump, the foam pump, the first pressure sensor, the second pressure sensor, the third pressure sensor, the first electrically operated valve, the second electrically operated valve, the normally open valve, the normally closed valve, and the liquid level sensor, respectively.
2. A fire fighting device joint control system according to claim 1, further comprising: the first battery and the second battery are both electrically connected with the controller.
3. A fire fighting device joint control system according to claim 2, characterized in that: the cathode of the first battery is electrically connected with the drain electrode of the first field effect transistor, and the source electrode of the first field effect transistor is electrically connected with the drain electrode of the second field effect transistor; the cathode of the second battery is electrically connected with the drain electrode of a third field effect transistor, and the source electrode of the third field effect transistor is electrically connected with the drain electrode of a fourth field effect transistor; one end of the controller is electrically connected with the source electrode of the second field effect transistor and the source electrode of the fourth field effect transistor respectively, and the other end of the controller is electrically connected with the anode of the first battery and the anode of the second battery.
4. A fire fighting device joint control system according to claim 1, characterized in that: the number of the water pump and the first electric valve is two, and the second pipeline comprises: the inlet of the first main path is communicated with the outlet of the fire-fighting water pipe network, the outlet of each first branch path is communicated with the inlet of each water pump, the second pressure sensor is arranged on the first main path, and each first electric valve is arranged on each first branch path.
5. A fire fighting device joint control system as defined in claim 4, wherein the third conduit includes: the second main path and two second branches communicated with the second main path, an inlet of each second branch is communicated with an outlet of each water pump, an outlet of the second main path is communicated with the first pipeline, a check valve is arranged on each second branch, the third pressure sensor, the second electric valve and the normally-closed valve are arranged on the second main path, and the fourth pipeline is communicated with the second main path.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020763576.4U CN212416737U (en) | 2020-05-09 | 2020-05-09 | Fire control unit allies oneself with accuse system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020763576.4U CN212416737U (en) | 2020-05-09 | 2020-05-09 | Fire control unit allies oneself with accuse system |
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| CN212416737U true CN212416737U (en) | 2021-01-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113198130A (en) * | 2021-05-25 | 2021-08-03 | 西安理工大学 | Fire extinguishing system with injection type compressed air foam metering function and using method thereof |
| CN113359416A (en) * | 2021-06-11 | 2021-09-07 | 西安理工大学 | Multi-input single-output compressed air foam system based on PLC and control method |
-
2020
- 2020-05-09 CN CN202020763576.4U patent/CN212416737U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113198130A (en) * | 2021-05-25 | 2021-08-03 | 西安理工大学 | Fire extinguishing system with injection type compressed air foam metering function and using method thereof |
| CN113359416A (en) * | 2021-06-11 | 2021-09-07 | 西安理工大学 | Multi-input single-output compressed air foam system based on PLC and control method |
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