CN113546359A - Anti-interference digital intelligent inspection control equipment - Google Patents
Anti-interference digital intelligent inspection control equipment Download PDFInfo
- Publication number
- CN113546359A CN113546359A CN202110674786.5A CN202110674786A CN113546359A CN 113546359 A CN113546359 A CN 113546359A CN 202110674786 A CN202110674786 A CN 202110674786A CN 113546359 A CN113546359 A CN 113546359A
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- Prior art keywords
- fire
- pump
- inspection control
- fire hydrant
- water
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/50—Testing or indicating devices for determining the state of readiness of the equipment
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
-
- 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
Abstract
The invention discloses anti-interference digital intelligent inspection control equipment, which belongs to the technical field of fire inspection control and comprises a fire inspection control cabinet and a water pump output loop, wherein the fire inspection control cabinet is connected with the water pump output loop, a pressure gauge and a main valve are arranged between the fire inspection control cabinet and the water pump output loop, the fire inspection control cabinet comprises a programmable controller, a variable frequency speed regulator, a human-computer interface, a plurality of operating switches and a plurality of indicating lamps, the water pump output loop comprises a fire hydrant main control pump system, a fire hydrant voltage stabilizing pump system and a water replenishing system, the fire hydrant main control pump system, the fire hydrant voltage stabilizing pump system and the fire inspection control cabinet are all connected with the water replenishing system, and the water replenishing system comprises a water tank and a water replenishing valve. The fire-fighting inspection control cabinet is matched with the water pump output loop, so that water is supplied to the water pump completely when a fire disaster happens, and the fire disaster is prevented in time.
Description
Technical Field
The invention belongs to the technical field of fire-fighting inspection control, and particularly relates to anti-interference digital intelligent inspection control equipment.
Background
The fire-fighting patrol inspection is very important for the whole fire-fighting system, and the aim of 'soldiers for nourishing the arms for thousands of days' is realized. The fire pump is normally in a stop-standby state.
Over time, the impeller in a fire pump can become wet, rusty, corroded, shorted, etc. in the wet environment of the pump chamber. Therefore, according to the requirements of fire-fighting specifications, in order to avoid the fire pump from having the faults, the fire pump needs to be regularly patrolled, and the aim of 'cultivating soldiers for thousands of days for one time' is really achieved. Therefore, the intelligent fire-fighting patrol inspection control electrical equipment is an indispensable component in a fire-fighting system.
Fire control feed pump group control system among the prior art, though can play the effect of fire control, but neglected the cooperation degree and the information transmission speed between every module for when the conflagration takes place, degree of automation is low, and the reaction is slow, and the cooperation between every module is not in place, receives external interference easily, thereby can not be timely when can causing the conflagration play the effect of fire control and enlarge the consequence of loss.
Therefore, the anti-interference capability and the adaptability between the control systems of the fire-fighting water feed pump set are extremely important.
Disclosure of Invention
The invention aims to: the anti-interference digital intelligent inspection control equipment is provided for solving the problems that the existing fire-fighting water supply pump control system is easy to be interfered, and the coordination degree among all modules cannot play a fire-fighting role in time.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an anti-interference digital intelligence patrols and examines controlgear, patrols and examines switch board and pump output circuit including the fire control, the fire control is patrolled and examined the switch board and is connected pump output circuit, the fire control patrol and examine the switch board with be provided with manometer and main valve between the pump output circuit, the fire control patrol and examine the switch board and include programmable controller, frequency conversion speed regulator, human-computer interface, a plurality of operating switch and a plurality of pilot lamp, pump output circuit includes fire hydrant master control pump system, fire hydrant steady voltage pump system and moisturizing system, the fire hydrant master control pump system the fire hydrant steady voltage pump system with the fire control patrol and examine the switch board all with moisturizing system connects, moisturizing system includes water tank and moisturizing valve.
As a further description of the above technical solution:
the fire hydrant master control pump system and the fire hydrant pressure stabilizing pump system are connected in parallel.
As a further description of the above technical solution:
the fire-fighting inspection control cabinet adopts an MODBUS communication protocol.
As a further description of the above technical solution:
and the speed regulation frequency converter is provided with an RS485 communication interface.
As a further description of the above technical solution:
the device is provided with a SIM300 industrial grade transceiver module.
As a further description of the above technical solution:
the equipment adopts a double-circuit power supply for power supply.
As a further description of the above technical solution:
adopt electric interlocking and mechanical interlocking to combine together the mode among the fire control inspection control cabinet.
As a further description of the above technical solution:
the fire hydrant master control pump system comprises a fire hydrant master control pump, a fire hydrant standby pump, a spray pump and a spray standby pump.
As a further description of the above technical solution:
the fire hydrant pressure stabilizing pump system comprises a fire hydrant pressure stabilizing pump, a fire hydrant pressure stabilizing standby pump, a spraying pressure stabilizing pump and a spraying pressure stabilizing standby pump.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. in the invention, the anti-interference digital intelligent inspection control equipment adopts control technologies such as a programmable controller, a variable frequency speed regulator, a human-computer interface and the like to perform periodic, timed and constant-speed inspection on the fire-fighting water pump, the fire-fighting water pump is kept in a reliable running state for a long time through automatic detection, the inspection is stopped immediately when fire-fighting fire occurs during inspection, the 0.4S internal switch is made to a fire-fighting running mode, and the fire-fighting pump is started at full speed.
2. In the invention, the design of double insurance of electrical interlocking and mechanical interlocking is adopted, so that the risk of false start of automatic inspection in a fire-fighting operation mode is avoided; the functions are complete, and low-speed non-pressure inspection of a fire fighting main circuit, a line selection dual-power switch ATSE and a fire pump can be completed; the protection functions of overvoltage, overcurrent, short circuit, phase failure and the like are realized; when a fire pump fault is found in the polling process, the equipment generates an acousto-optic alarm signal, and temporarily memorizes polling data, so that the equipment is convenient to overhaul and maintain and has the functions of on-site acousto-optic alarm, remote RS485 communication alarm, remote short message alarm and the like; the system has functions of routing inspection fault data derivation and local printing; the intelligent fire pump system is provided with a visual intelligent control module, and information such as system state, power type, fire pump state and the like is displayed in real time.
3. In the invention, the inspection control equipment is compatible with all inspection types in the current control industry, can not only realize inspection in a PID (proportion integration differentiation) regulation mode in the traditional sense, but also realize inspection at low frequency or any specified frequency, and can realize non-pressure inspection so as to meet various inspection requirements. The system has a manual and automatic inspection mode, and the inspection state is synchronously prompted; the inspection automatically avoids the fire fighting state, and automatically changes into a power frequency mode to put into fire fighting. The automatic monitoring power supply over-voltage and under-current, open-phase, over-cut, short circuit, abnormal starting and other fault alarm functions, the automatic monitoring system is safe and easy to use, displays and controls digital intelligent fire-fighting patrol inspection control equipment through a high-fidelity 10-inch human-computer interface, and is simple and convenient to operate.
4. In the invention, the human-computer interface is provided with the touch screen, and the touch screen adopts 800X480 high resolution, is bright in color, supports 65000 colors for display, and has stable and reliable performance. The system can display a real-time curve, simulate functions of field water pump action, fault recording, user login and the like, and has a freely selectable standby picture and good expansibility.
5. In the invention, the fire-fighting inspection control cabinet adopts a cascade control mode, and when the single machine operation can not meet the use requirement, the cascade control mode can be adopted in the system of a plurality of fire-fighting pumps, and the application object range is expanded through the master-slave relation.
6. In the invention, the programmable controller is provided with the storage chip, the pressure of the water outlet, the real-time and type of fault and alarm sounding, the working state of the fire pump set and the like are automatically recorded in the operation process of the equipment, the recording and acquisition period is accurate to 1 hour/2 times, and the recording and storage functions can exceed 200 days.
7. In the invention, the equipment is provided with the SIM300 industrial-grade transceiver module, through which a user or a management organization can remotely control the start and stop of the fire pump or send the polling command of the fire pump, and the execution condition fed back by the field action can be received while sending the command. The operation can be carried out in a place with a mobile phone signal, the efficiency of an operator is greatly improved, the operator can conveniently control the working condition of the site, a wireless automatic trigger mode can be realized in an automatic mode due to the real-time monitoring function, the flexible function can immediately make an emergency response when the fire-fighting working condition occurs, and even if the fire condition is serious, the site has various inconveniences and does not influence the response to the fire working condition at all. Meanwhile, the SIM300 industrial-grade transceiver module is used, so that system upgrading can be conveniently carried out in the aspect of connection with the Internet, and urban fire-fighting intelligent networking is realized.
8. In the invention, the RS485 communication interface is arranged on the speed-regulating frequency converter, and the RS485 communication interface is matched with an MODBUS communication protocol, so that remote control and centralized management can be realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a circuit diagram of an anti-interference digital intelligent inspection control device.
Fig. 2 is a working principle diagram of an anti-interference digital intelligent inspection control device.
Illustration of the drawings:
1-fire-fighting inspection control cabinet; 2-water pump output loop; 21-a hydrant master pump system; 22-a hydrant surge pump system; 23-a water replenishing system; 231-a water tank; 232-water replenishing valve; 3-a pressure gauge; 4-main valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the terms "upper", "inner", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides an anti-interference digital intelligence patrols and examines controlgear, patrols and examines 1 and 2 with water pump output circuit including the fire control, the fire control patrols and examines 1 connection of switch board 2 water pump output circuit, the fire control patrols and examines switch board 1 with be provided with manometer 3 and main valve 4 between the water pump output circuit 2, the fire control patrols and examines switch board 1 and include programmable controller, frequency conversion speed regulator, human-computer interface, a plurality of operating switch and a plurality of pilot lamp, water pump output circuit 2 includes fire hydrant master control pump system 21, fire hydrant voltage stabilizing pump system 22 and water charging system 23, fire hydrant master control pump system 21 fire hydrant voltage stabilizing pump system 22 with the fire control patrols and examines switch board 1 all with water charging system 23 connects, water charging system 23 includes water tank 231 and moisturizing valve 232.
The fire hydrant main control pump system 21 and the fire hydrant pressure stabilizing pump system 22 are connected in parallel. Fire hydrant master control pump system mainly adopts manual operation switch to patrol and examine, fire hydrant voltage stabilizing system mainly patrols and examines for the automation, with the two parallel connection, avoid fire control controlgear automatic start system trouble in the use, can't control water pump output circuit through human-computer interface and fight fire, open fire hydrant master control pump system through manual operation, control water pump output circuit, start fire hydrant master control pump, fire hydrant reserve pump, spray pump and spray reserve pump carry out the fire control, this simulation is patrolled and examined controlgear and is used for carrying out the simulation of fire control start-up process through the analog control circuit, when accomplishing to catch fire, 100% operation of water pump output circuit, in time stop the conflagration, under the big condition of intensity of a fire if meetting, can open fire hydrant master control pump system and fire hydrant voltage stabilizing pump system simultaneously, further improve the speed of putting out a fire.
The fire-fighting inspection control cabinet 1 adopts MODBUS communication protocol. The standard MODBUS communication protocol is adopted, so that the method has wide compatibility and stable anti-interference effect, and can achieve the transmission rate of 19200bits in an industrial control field.
The speed regulation frequency converter is provided with an RS485 communication interface, and the RS485 communication interface is matched with an MODBUS communication protocol through the RS485 communication interface arranged on the speed regulation frequency converter, so that remote control and centralized management can be realized.
The device is provided with a SIM300 industrial grade transceiver module. The equipment is provided with an SIM300 industrial grade transceiver module, and through the module, a user or a management organization can remotely control the starting and stopping of the fire pump or send the polling command of the fire pump. And the execution condition fed back by the field action can be received while the command is sent. The operation can be carried out in a place with a mobile phone signal, the efficiency of an operator is greatly improved, the operator can conveniently control the working condition of the site, the equipment has a real-time monitoring function, a wireless automatic trigger mode can be realized in an automatic mode, the flexible function can immediately make an emergency response when the fire-fighting working condition occurs, and even if the fire condition is serious, the site has various inconveniences and does not influence the response to the fire working condition at all. Meanwhile, the SIM300 industrial-grade transceiver module is used, so that system upgrading can be conveniently carried out in the aspect of connection with the Internet, and urban fire-fighting intelligent networking is realized.
The equipment adopts a double-circuit power supply for power supply.
The fire-fighting inspection control cabinet 1 is internally provided with an electric interlocking and mechanical interlocking combined mode. The double-insurance design of electrical interlocking and mechanical interlocking is adopted, and the risk of automatic inspection and false start in a fire-fighting operation mode is avoided.
The fire hydrant master control pump system 21 comprises a fire hydrant master control pump, a fire hydrant standby pump, a spray pump and a spray standby pump. If a main pump and a standby pump of the fire hydrant are adopted, if the main control pump of the fire hydrant breaks down, the standby pump of the fire hydrant is started, the normal water spraying and discharging of the water pump is ensured to extinguish fire, and 100% timely fire extinguishing on site is realized.
The fire hydrant pressure stabilizing pump system 22 comprises a fire hydrant pressure stabilizing pump, a fire hydrant pressure stabilizing standby pump, a spraying pressure stabilizing pump and a spraying pressure stabilizing standby pump. If a main pump and a standby pump are adopted, if the fire hydrant pressure stabilizing pump fails, the programmable controller automatically starts the fire hydrant pressure stabilizing standby pump to ensure that the water pump normally sprays water to extinguish fire, and 100% of on-site timely fire extinguishment is realized.
The working principle is as follows: by arranging a fire-fighting inspection control cabinet and a water pump output loop, a programmable controller, a variable-frequency speed regulator, a human-computer interface, a plurality of operating switches and a plurality of indicating lamps are arranged on the fire-fighting inspection control cabinet, the operating switches comprise a manual/automatic switch, a fire hydrant main control pump manual inspection switch, a fire hydrant standby pump manual inspection switch, a spray standby pump manual inspection switch and a starting inspection switch, the indicating lamps comprise an automatic state indicator, a power indicator, a fire-fighting linkage indicator, a fire hydrant voltage-stabilizing main control pump inspection operation indicator, a fire hydrant voltage-stabilizing standby pump inspection operation indicator, a spray voltage-stabilizing standby pump inspection operation indicator, an inspection fault indicator and a power frequency operation indicator, the fire-fighting inspection control cabinet is matched with the water pump output loop, and a touch screen in the human-computer interface is connected with the programmable controller, the programmable controller is provided with a pressure sensor, the pressure sensor is connected with a pressure gauge, the pressure gauge is connected with a main valve, the main valve is connected with a water pump output loop, the programmable controller sends out a simulation fire-fighting starting signal according to the time set by a human-computer interface so as to automatically inspect the fire hydrant pressure stabilizing pump system and make corresponding simulation records so as to inspect whether the flow of fire-fighting spraying through the fire hydrant pressure stabilizing pump system is normal or not, after the automatic system inspects, the corresponding operating switch is manually opened to inspect the fire hydrant main control pump system, the information is fed back to the programmable controller through the water pump output loop, the programmable controller displays the information through the human-computer interface so as to inspect whether the flow of fire-fighting spraying through the fire hydrant main control pump system is normal or not, and the equipment adopts the double-insurance design of electrical interlocking and mechanical interlocking, the risk of starting by mistake in automatic inspection under the fire-fighting operation mode is completely eradicated, low-speed non-pressure inspection of a fire-fighting main circuit, a line-selecting dual-power switch ATSE and a fire pump can be completed, meanwhile, the equipment adopts a photoelectric isolation high anti-interference circuit, the isolation voltage reaches 5000V, each part is communicated with an SIM300 and an external expansion unit in a bus mode, the control effect of points, lines and surfaces can be achieved, in the aspect of openness, a standard MODBUS communication protocol is adopted, the compatibility and the stable anti-interference effect are wide, the 19200bits transmission rate can be achieved in an industrial control field, the good matching degree among modules is guaranteed, the fire-fighting effect is achieved in time, and the loss is reduced;
the equipment designs a water pump output loop into a fire hydrant main control pump system and a fire hydrant pressure stabilizing pump system, and ensures the normal operation of the fire hydrant main control pump system and the fire hydrant pressure stabilizing pump system by inspecting whether the fire hydrant pressure stabilizing pump system which is automatically started is normal or not, so that in the fire fighting process, when the fire hydrant pressure stabilizing pump system automatic starting system fails, the fire hydrant main control pump system can be manually opened to carry out fire fighting on the site and put out fire on the site in time, and simultaneously, the fire hydrant main control pump system and the fire hydrant pressure stabilizing pump system are both designed into a main pump and a standby pump, if the main pump fails, the standby pump is automatically started to carry out fire fighting, so that each module in the water pump output circuit has good matching degree, the water pump is ensured to normally spray water for fire fighting, the site is put out fire in time, in addition, the equipment adopts a standard MODBUS communication protocol to communicate with an SIM300 and an external expansion unit, the system has good anti-interference capability, and can realize remote control and centralized management.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. An anti-interference digital intelligent inspection control device comprises a fire inspection control cabinet (1) and a water pump output loop (2), wherein the fire inspection control cabinet (1) is connected with the water pump output loop (2), a pressure gauge (3) and a main valve (4) are arranged between the fire inspection control cabinet (1) and the water pump output loop (2), the fire inspection control cabinet (1) comprises a programmable controller, a variable-frequency speed regulator, a human-computer interface, a plurality of operating switches and a plurality of indicator lamps, the water pump output loop (2) comprises a fire hydrant main control pump system (21), a fire hydrant voltage stabilizing pump system (22) and a water supplementing system (23), the fire hydrant main control pump system (21), the fire hydrant voltage stabilizing pump system (22) and the fire inspection control cabinet (1) are all connected with the water supplementing system (23), the water replenishing system (23) comprises a water tank (231) and a water replenishing valve (232).
2. The anti-interference digital intelligent inspection control device according to claim 1, wherein the fire hydrant master pump system (21) and the fire hydrant pressure stabilizing pump system (22) are connected in parallel.
3. The anti-interference digital intelligent inspection control equipment according to claim 1, wherein the fire inspection control cabinet (1) adopts MODBUS communication protocol.
4. The anti-interference digital intelligent inspection control device according to claim 1, wherein the speed-regulating frequency converter is provided with an RS485 communication interface.
5. The anti-jamming digital intelligent inspection control device according to claim 1, wherein a SIM300 industrial-grade transceiver module is provided on the device.
6. The anti-jamming digital intelligent inspection control device according to claim 1, wherein the device is powered by a dual power supply.
7. The anti-interference digital intelligent inspection control equipment according to claim 1, wherein the fire inspection control cabinet (1) is electrically interlocked and mechanically interlocked.
8. The anti-interference digital intelligent inspection control device according to claim 1, wherein the fire hydrant master pump system (21) comprises a fire hydrant master pump, a fire hydrant stand-by pump, a spray pump and a spray stand-by pump.
9. The anti-interference digital intelligent inspection control equipment according to claim 1, wherein the fire hydrant pressure stabilizing pump system (22) comprises a fire hydrant pressure stabilizing pump, a fire hydrant pressure stabilizing standby pump, a spraying pressure stabilizing pump and a spraying pressure stabilizing standby pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110674786.5A CN113546359A (en) | 2021-06-17 | 2021-06-17 | Anti-interference digital intelligent inspection control equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110674786.5A CN113546359A (en) | 2021-06-17 | 2021-06-17 | Anti-interference digital intelligent inspection control equipment |
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| CN113546359A true CN113546359A (en) | 2021-10-26 |
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| CN202110674786.5A Pending CN113546359A (en) | 2021-06-17 | 2021-06-17 | Anti-interference digital intelligent inspection control equipment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203494089U (en) * | 2013-09-03 | 2014-03-26 | 上海人民企业集团水泵有限公司 | Digital low-frequency automatic fire control patrolling control cabinet |
| CN205068134U (en) * | 2015-10-21 | 2016-03-02 | 北京东方神龙环保设备制造有限公司 | Fire control water feed pump set intelligence centralized control system |
| CN205759329U (en) * | 2016-05-20 | 2016-12-07 | 武汉裕生智能节能设备有限公司 | A kind of fire supply system intelligent controlling device |
| CN109847249A (en) * | 2019-03-07 | 2019-06-07 | 胡亨华 | Have both the fire-fighting fire extinguishing water system of automatic detecting and pump motor startup function |
-
2021
- 2021-06-17 CN CN202110674786.5A patent/CN113546359A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203494089U (en) * | 2013-09-03 | 2014-03-26 | 上海人民企业集团水泵有限公司 | Digital low-frequency automatic fire control patrolling control cabinet |
| CN205068134U (en) * | 2015-10-21 | 2016-03-02 | 北京东方神龙环保设备制造有限公司 | Fire control water feed pump set intelligence centralized control system |
| CN205759329U (en) * | 2016-05-20 | 2016-12-07 | 武汉裕生智能节能设备有限公司 | A kind of fire supply system intelligent controlling device |
| CN109847249A (en) * | 2019-03-07 | 2019-06-07 | 胡亨华 | Have both the fire-fighting fire extinguishing water system of automatic detecting and pump motor startup function |
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Application publication date: 20211026 |
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