KR100955704B1 - Capacitive fire pump system - Google Patents

Abstract

PURPOSE: A capacitive fire pump system is provided to set a power in small in comparison with a conventional engine pump by simultaneously operating a main pump and a sub pump and to minimize an installation area of a basement machine room. CONSTITUTION: A capacitive fire pump system comprises: a main pump(11) of a grain form and a sub pump(12); one pipe(10) which is installed in parallel; and a controller(13) which supplies power to the pump and drives the pump in uninterruptible state for constant hours when fire power outage and power fail are generated. The controller includes a rectifier, a storage battery part, an inverter part, and a controller.

Description

[0001] The present invention relates to a capacitive fire pump system,

The present invention relates to a chargeable fire pump system, and more particularly, to a chargeable fire pump system in which a main pump and an auxiliary pump are arranged in parallel in a single pipe to operate as a main pump at an initial stage, ≪ / RTI >

Generally, a fire truck used for fire suppression, lifesaving, and drainage work in an immersion area is equipped with a fire pump device for lifting water from a water source and storing water in the water tank or for radiating it immediately.

Such a fire pump apparatus includes a priming means for reducing the internal air for initial pumping, a water tank for storing pumped water, a check valve for preventing back flow, and a fire pump for radiating water .

Generally, a fire pump uses a power-driven pump generated by an engine. It has a simpler structure than a conventional motor pump, and can provide a high-capacity and high-capacity firepower to supply fire water required for fire extinguishing Widely used.

These fire-fighting engine pumps are powered by a battery to be able to use a rechargeable emergency power source in preparation for the power that can be cut off in case of fire, and are usually installed under the multi-layered building, It is indispensable to be equipped with a high-output engine pump.

In addition, the reliability of operation is very important because it must be operated accurately in case of fire to minimize damage.

However, in the conventional engine pump, since the main pump and the engine for driving it are integrally formed, when the fire occurs, the main pump is operated at a rate of 100%, so a large capacity pump and a corresponding capacity engine are required. If the pump fails, it will not function as a fire pump.

In addition, since the conventional engine pump is a cast molding method, the surface of the rotating car is rough, the efficiency is low by 20 to 30%, and a high output engine is required. Due to the nature of the engine, And occupation of the space.

Conventional engine pumps are applied with gray cast iron or bronze materials and only operate in case of fire, which causes rust when not used for a long time. It can cause big property damage.

The main pump and the auxiliary pump are arranged in parallel in one pipe, and when the main pump is operated at a rate of 50% at the beginning, , It is possible to set the power to be smaller than that of the engine pump and to operate the auxiliary pump even if the main pump fails. The present invention relates to an accumulator type fire pump system.

Further, the present invention can reduce the starting torque by using the high-efficiency type pump and inverter manufactured by the press molding method, and can select the power of the motor used in the pump to be low, It is a further object to provide a storage-type fire pump system capable of maximizing the space utilization, such as minimizing the installation area.

The present invention also relates to a method and apparatus for preventing rusting of a rotating car by applying a stepped pump of a stainless steel product and performing automatic test operation of the pump periodically under the control of a controller, There is another purpose in providing a fire pump system.

Still another object of the present invention is to provide a battery capable of supplying an emergency power in the event of a power failure and a controller for controlling the same, so that the pump is normally operated by a general power supply, and if a power failure or power failure occurs in the event of a fire, The present invention provides a fire-extinguishing system for a fire-extinguishing system.

In order to achieve the above object, the present invention provides a charge-accumulation-type fire-fighting pump system in which a main pump and a sub-pump are connected in parallel to a single pipe, and the main pump and the sub- The controller supplies the normal power to the pump at normal times and supplies the battery power to the pump when a power failure or power failure occurs in the event of a fire so that the pump can be operated in an unsteady state for a predetermined period of time.

Here, in the case of the controller, the normal power supply is normally supplied to the pump to supply the battery power to the pump in the event of a power failure or power failure in the event of a fire, so that the pump can be operated in an unsteady state for a predetermined time, It is desirable that the automatic test operation of the fire-fighting pump be carried out regularly even at a normal time.

It is preferable that the discharge pressure is input to the controller in real time by the pressure transmitter on the pump discharge side so that the individual pump rotational speed can be controlled to maintain the discharge pressure constant.

The battery fire pump system provided in the present invention has the following advantages.

First, since the main pump and the auxiliary pump can be operated in parallel, the power can be set smaller than that of the conventional engine pump, and even if one pump fails, the function of the fire pump can be properly performed.

Second, by adopting the pump of the mouth type structure, the installation area of the underground machine room can be minimized, and the space utilization can be maximized.

Third, by manufacturing parts of the pump by press molding and applying stainless steel products, the power of the motor used in the pump can be set low, and the generation of rust of the rotor can be prevented originally.

Fourth, since the pump can be automatically tested and operated even under the condition that the fire pump is not operated for a long time, the problem of fixing the rotor can be solved. As a result, the pump can not be started when a fire occurs due to frequent failure of the rotor and engine. It is possible to solve the problem that does not make initial evolution.

Accordingly, the battery-operated fire pump system of the present invention is an automatic fire pump operation system using a battery. It automatically controls the accumulator and the fire pump in the controller by the program of the microprocessor so that the fire pump can be smoothly started By improving the stability and reliability of the fire pump and completing the disadvantages of the existing engine pump with the software program through the control module, it is possible to reduce the size of the apparatus and to reduce the maintenance cost, thereby bringing about economical ripple effect.

In addition, since the battery, the inverter and the rectifying part are constituted by a single circuit, they are not influenced by the commercial AC power inputted and continue to operate in an unstable state for a predetermined time even in case of power failure. Therefore, And maintenance cost, and all of them are composed of single equipment. Therefore, overall stability of power supply facilities is increased and power facilities are not large. As a result, facilities cost is low, It is safe and economic value such as normal operation of the pump.

In addition, it is possible to switch the bypass bypass without any sudden failure or maintenance even if the inverter device suddenly fails due to the bypass function of the uninterrupted or the uninterrupted power in connection with the input power or the emergency power supply. Accordingly, And it is possible to operate the fire pump safely and conveniently by easy maintenance and repair.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In the chargeable fire pump system according to the present invention, the water stored in the digestion water is composed of two pumps in a parallel structure, and when the main pump is operated at 50% and the water usage is increased, the auxiliary pump is operated at 50% .

Each pump is equipped with an individual inverter to control the number of revolutions, so that the discharge pressure can be controlled constantly, and it is possible to use it with low power by adopting the pump of the high efficiency type structure.

The main components of the controller for controlling the pump include a controller for performing PID control, an inverter for controlling the speed of the pump, and a battery for emergency power generation during power failure.

Accordingly, the stable power supply is always supplied irrespective of the momentary power generation and various power supply faults, so that the fire pump can be driven by supplying high quality power even in the uninterrupted state when a fire occurs.

For example, during normal operation, the incoming AC power is converted into a DC power by the rectifying element to charge the battery, and at the same time, the inverter unit supplied with the DC power is converted into a stable AC power of a constant voltage and a constant frequency, When the commercial power source is out of order, DC power is supplied to the inverter unit from the battery unit which was normally charged by the charging device, and high quality AC power is supplied to the fire pump during the discharging time.

When the commercial power source which has been cut off is supplied again to the charging unit, the discharge of the battery is automatically stopped, and the commercial power source supplies electric power to the fire-fighting pump by the inverter unit through the inverter unit.

In the case of the controller, the test operation can be automatically performed using a program of the microprocessor.

In particular, by providing a pressure transmitter at the pump discharge side, serial communication (RS-485 or RS-232) function that enables data to be sent to the controller by real-time sensing,

In addition, the present invention provides various functions such as a battery storage capacity monitoring function, an operation state monitoring function, an automatic return function after power failure, a rain protection operation function, a sticking prevention function, an alarm display and storage function, Since the equipment can be protected by the occurrence of abnormality, the user can smooth maintenance.

FIG. 1 is a perspective view showing the overall structure of a chargeable fire pump system according to an embodiment of the present invention. FIG.

As shown in FIG. 1, in the above-described accumulation-type fire pump system, water stored in digestion water is connected in parallel to two pumps having a mouthpiece structure, and when the main pump 11 is operated at 50% And a pump 12 is operated at 50%.

For this purpose, the piping 10 for supplying and discharging water for fire extinguishing water is constituted by a suction side pipe 10a and a discharge side pipe 10b which are arranged side by side, and between the suction side pipe 10a and the discharge side pipe 10b And a main pump 11 and an auxiliary pump 12 are installed on each of the connecting pipes 10c to be installed as described above.

A plurality of valves 19 are provided on each piping to prevent piping shutoff or prevent backflow if necessary. A low level sensing transmitter 20 is installed on the suction side piping 10a. A main pump 11 A pressure transmitter 18 including a discharge pressure gauge is provided in the connection pipe 10c.

A controller 13 for controlling the pump or the like is installed on the control panel 21 at one side of the main pump 11 and the auxiliary pump 12.

Here, reference numeral 22 denotes a common base, and reference numeral 23 denotes an uninterruptible power supply.

Accordingly, the main pump 11 and the auxiliary pump 12 can be arranged in parallel and controlled by the controller 13 to selectively and simultaneously supply fire extinguishing water for fire suppression.

That is, in the early stage of the fire, the main pump 11 is operated at 50%, and when the amount of water is insufficient, the auxiliary pump 12 can be supplied at a rate of 50%.

Particularly, in the case of the pressure transmitter 21 provided on the discharge side of the main pump 11, the pressure of the discharge side pipe is transmitted to the controller 13 in real time, and the pump rotational speed is controlled by the pump individual inverter , A constant water pressure can always be maintained.

2 is a circuit diagram showing a controller of a chargeable fire pump system according to an embodiment of the present invention.

2, the controller 13 includes a rectifying section 14, a battery section 15, an inverter section 16, a control section 17, etc., which are electrically connected to each other.

In order to compensate for the failure of the additional circuit, two switches, that is, an automatic operation switch 24 and a manual operation switch 25 are provided on the input power supply terminal side. Normally, the automatic operation circuit is operated, If it is not operated due to negative fault, manual operation can be selected and operated.

That is, it is possible to operate by manual operation according to the failure of the control system.

The rectifying unit 14 is connected to the input power terminal to rectify the commercial AC power to the DC power. The battery unit 15 is capable of charging at all times, And the inverter unit 16 performs a function of supplying a high quality power from the rectifier unit 14 and the battery unit 15 which is obtained by converting the DC power source to the AC power source, And performs the overall control according to the system operation including the control of the rectifying section 14, the battery section 15, and the inverter section 16 as well as the control of the pump while embedding the microprocessor program.

Reference numeral 26 denotes a power failure monitoring unit.

In addition, the low-level transmitter 20 and the pressure transmitter 18 provided on the side of the piping are electrically connected to the controller 17 to provide the water level information and the pressure information in real time.

Each component of the controller 13 will be described in more detail as follows.

The rectifying unit 14 is a device for rectifying a direct current power (DC voltage) using a commercial AC power source 380V AC voltage input to an input power terminal, and supplies a good power such as a constant voltage and a constant frequency to an output terminal.

It consists of an IGBT module, a fuse, a heatsink, and an assembled PCB with additional circuitry.

In the battery unit 15 and a charge control unit (not shown) for controlling the charge unit 15, the charge voltage and the charge current of the battery are controlled and the detected information (voltage, current, capacity of the battery, It is possible to prevent the battery from deteriorating and to supply it immediately in case of power failure.

The charging / discharging switch (not shown) controls the charging period according to the state of the battery. The charging / discharging switch (not shown) prevents the overcharging or the insufficient charging due to the constant charging and periodically detects the charging and discharging current Monitored and controlled.

The battery 15 is supplied with a stable power supply to the main pump 11 and the auxiliary pump 12 during a power failure of the commercial power supply or in a case where the alternating current input power supply is unstable, And a current for supplying DC power to an input terminal of the inverter unit 16 is stored.

The inverter section 16 is a device for converting the DC power from the rectifying section 14 and the battery section 15 to AC power and supplies a high quality power such as a constant voltage and a constant frequency to the main pump 11 and the auxiliary pump 12).

The AC power supply is continuously supplied within the rated output voltage range to supply an ideal AC power even when the voltage, current, and frequency change, such as the voltage fluctuation on the input side and the load fluctuation on the output side.

In addition, the control unit 17 incorporates a program by a microprocessor to display and control operation states of additional circuits such as rectification and charging devices, inverter devices, pressure monitoring, low water level monitoring, and the like, Function as the most convenient and concise control by independent program.

The pressure transmitter 18 monitors the pressure of the discharge pipe 10b in real time and transmits an electric signal of 4 to 20 mA to the controller 17 so that a constant pressure can be maintained by the controller 17 at this time , And the low-level transmitter (20) transmits the presence or absence of water to the fire extinguishing water to the control unit (17) to protect the low water level.

Accordingly, the controller 13 supplies the normal power to the pump at normal times, and supplies the battery power to the pump when a power failure or power failure occurs in the event of a fire, so that the pump can be operated in an unsteady state for a predetermined time. It can reduce property damage and perform control to be able to serve as a stable fire pump.

In particular, the controller 13 is equipped with a program for performing a sticking prevention function and a self-diagnosis function, so that the automatic test operation of the fire pump can be performed regularly even at normal times, that is, Therefore, it is possible to solve the problem that the pump can not start when the fire occurs due to frequent failure of the engine and the fixing of the rotating car which may occur due to the failure of the long-time fire pump, which is a disadvantage of the old engine pump. As a result, in case of a fire, it is possible to initialize the fire pump without failure, so it can minimize damage to the property.

In addition, it has various functions such as storage capacity and operation status monitoring, automatic return after power failure, protection of rain water, display and storage of alarm in case of abnormality, and so on. Accordingly, it is possible to maintain the fire pump according to the occurrence of the fire in the optimal state, and various safety functions for the convenience of the user can be provided to facilitate the maintenance.

1 is a perspective view showing the entire structure of a battery-driven fire pump system according to an embodiment of the present invention;

2 is a circuit diagram showing a controller of a battery-operated fire pump system according to an embodiment of the present invention;

Description of the Related Art

10: Piping 10a: Suction side piping

10b: Discharge side piping 10c: Connection piping

11: main pump 12: auxiliary pump

13: Controller 14:

15: capacitor section 16: inverter section

17: control unit 18: pressure transmitter

19: valve 20: low water level transmitter

21: control panel 22: common base

23: Uninterruptible power supply unit 24: Switch for automatic operation

25: Manual operation switch 26:

Claims (5)

In a chargeable fire pump system, The main pump 11 and the auxiliary pump 12 are connected in parallel to one piping 10 and the main pump 11 and the auxiliary pump 12 are connected to the controller The controller 13 supplies the normal power to the pump and supplies the battery power to the pump in the event of a power failure or a power failure in the event of a fire so that the pump can be operated in an unsteady state for a predetermined period of time. Wherein the pump is driven by the pump. The controller (13) according to claim 1, wherein the controller (13) comprises: a rectifier (14) connected to the input power terminal to rectify the commercial AC power to DC power; a capacitor An inverter unit 16 for supplying a high-quality power from the rectifying unit 14 and the battery unit 15, which is obtained by converting the DC power to AC power, to the pump side, and a microprocessor program built in the rectifying unit 14 And a control unit (17) for performing overall control according to the system operation including control of the pump (16), as well as the control of the pump unit (15), the battery unit (15) and the inverter unit (16). delete The controller (13) according to claim 1 or 2, wherein the controller (13) includes a program for performing a sticking prevention function and a self-diagnosis function, and the automatic test operation of the fire pump can be performed regularly even at normal times. Fire Pump System. The controller (13) according to claim 1 or 2, wherein the controller (13) receives the discharge pressure in real time by the pressure transmitter (18) installed on the pump discharge side and controls the pump individual rotation number to maintain the discharge pressure constant A battery-operated fire-fighting pump system.

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