KR20200114743A - Fuel oil supply device for fire engine pump system and, fire engine pump including the same - Google Patents

Abstract

The present invention relates to a fire extinguisher engine pump system which is driven urgently when fire occurs to provide a water pressure to a fire extinguisher water duct. The fire extinguisher engine pump system comprises: a pump unit (110) which pumps the supplied fire extinguisher water and supplies a water pressure to the fire extinguisher water duct; a fuel tank (120) which stores gasoline therein; an engine unit (130) which uses the gasoline as the power source and drives in accordance with a control signal so as to provide the driving force needed for the pump unit (110) to pump; a carburetor (140) which mixes the injected gasoline with the air and supplies the mixture to the engine unit (130); a fuel supply apparatus (150) including a supply duct (151) connected between the fuel tank (120) and the carburetor (140), a fuel pump (152) placed on the supply duct (151) to pump and transfer the gasoline to the carburetor (140), a recovery duct (153) connected between the fuel tank (120) and the carburetor (140), and a normal open valve (154) placed on the recovery duct (153) to close the opened duct when a control signal is inputted, and to open the closed duct when a control signal is blocked; and a control module (160) which drives and controls the engine unit (130) and the normal open valve (154) so that, when an emergency signal is received from outside, the pump unit (110) operates and the recovery duct (153) is closed, and when an emergency cancellation signal is received or is manually stopped, the pump unit (110) stops and the recovery duct (153) is opened.

Description

Fuel supply device for fire fighting engine pump system and fire fighting engine pump system including the same {FUEL OIL SUPPLY DEVICE FOR FIRE ENGINE PUMP SYSTEM AND, FIRE ENGINE PUMP INCLUDING THE SAME}

The present invention relates to a fuel supply device for a firefighting engine pump system and a firefighting engine pump system including the same, and more particularly, to supply gasoline to a firefighting engine pump system that provides high-pressure firefighting water to fire water pipes by emergency driving in case of fire. It relates to a fuel supply device for a fire fighting engine pump system and a fire fighting engine pump system including the same.

In general, a fire fighting engine pump system is a system that discharges fire extinguishing water required in case of a fire at high pressure by operating the impeller of the pump with the power generated by the engine of the internal combustion engine, and a water pump using a motor pump or pulley that uses electricity as power. Compared to that, relatively high speed and large capacity can be obtained, and can be driven even when the power is cut off, so it is widely used. Since such a fire fighting engine pump system must be operated accurately in case of fire to minimize damage, reliability of operation is very important.

In addition, the fire fighting engine pump system includes a fuel tank in which gasoline is stored and a carburetor that mixes injected gasoline and air and supplies it to the engine through a supply line, and when an emergency signal is received from the integrated disaster prevention system that recognizes the occurrence of a fire, the pump A control module for driving the engine was provided to operate.

However, when the engine is stopped due to the end of the emergency situation, the gasoline injected into the carburetor or the supply line cannot be discharged to the engine, and the stored state is maintained. Due to the characteristics of the firefighting engine pump system that operates the engine only in an emergency, if this storage state is left for a long time, the gasoline inside is vaporized and tar is generated and deposited inside. The accumulated tar blocked the air hole and prevented the smooth supply of fuel in an emergency, causing the engine to not operate normally.

In addition, the conventional fire fighting engine pump system places the fuel tank at a higher position than the carburetor so that gasoline stored in the fuel tank is supplied to the carburetor side by its own weight.This fuel supply method cannot recover gasoline through the supply line. Due to the vaporization of gasoline due to long-term neglect, the above problems have been further aggravated.

Publication No. 10-2009-0098324 (2009.9.17), Flange coupling for fire fighting engine pump.

The present invention was created to solve the above-described problem, and an object of the present invention is to automatically recover gasoline residual oil injected into the carburetor to the fuel tank when the engine is stopped to prevent the occurrence of tar in the carburetor, thereby improving the operational reliability of the system in case of emergency. It is to provide a fuel supply device for a fire fighting engine pump system that can guarantee and prevent unnecessary consumption of fuel, and a fire fighting engine pump system including the same.

According to a feature of the present invention, in the fire fighting engine pump system for providing water pressure to the fire extinguishing water pipe by emergency driving when a fire occurs, the pump unit 110 for supplying water pressure to the fire extinguishing water pipe while pumping the supplied fire extinguishing water; A fuel tank 120 for storing gasoline; An engine unit 130 that uses the gasoline as a power source and drives according to a control signal to provide a driving force required for the pump unit 110 to pump operation; A carburetor 140 that mixes the injected gasoline and air and supplies it to the engine unit 130; A supply pipe 151 connected between the fuel tank 120 and the carburetor 140, and a fuel pump 152 disposed on the supply pipe 151 to pump gasoline while pumping gasoline to the carburetor 140, The recovery pipe 153 connected between the fuel tank 120 and the carburetor 140, and disposed on the recovery pipe 153 closes the open pipe when a control signal is input, and closes when the control signal is blocked. A fuel supply device 150 including a normal open valve 154 operating to open a pipeline; And when an emergency signal is received from the outside, the pump unit 110 operates and the recovery pipe 153 is closed, and when an emergency release signal is received or a manual stop operation is performed, the pump unit 110 stops and the recovery pipe 153 A fire fighting engine pump system including a; control module 160 for driving and controlling the engine unit 130 and the normal open valve 154 to be opened is provided.

According to another feature of the present invention, when the emergency signal is received, the control module 160 controls the starting motor of the engine unit 130 to be started, but when the engine unit 130 is not started Controls to perform a method of attempting to start again after the set waiting time has elapsed, and drives the normally open valve 154 so that the recovery pipe 153 is blocked at the same time as the first start attempt of the engine unit 130 There is provided a fire fighting engine pump system, characterized in that the control is controlled so that the shut off state is maintained for a set time during which the engine unit 130 attempts to start.

According to another feature of the present invention, the control module 160 is required to burn the gasoline injected into the carburetor 140 by the engine unit 130 when the emergency release signal is received or manually stopped. There is provided a fire fighting engine pump system comprising driving and controlling the normal open valve 154 so that the recovery pipe 153 is opened after a set waiting time has elapsed.

According to another feature of the present invention, the normal open valve 154 is disposed at a position H2 relatively higher than the position H1 of the fuel tank 120, and the carburetor 140 is a normal open valve 154 ) Is disposed at a relatively higher position (H3), and the recovery pipe 153 is generally disposed in a downwardly inclined form. A fire fighting engine pump system is provided.

According to another feature of the present invention, a pipe line holder 170 disposed at a relatively higher position than the carburetor 140; further includes, and the supply pipe 151 is mounted on the pipe line holder 170 while both side portions There is provided a fire fighting engine pump system, characterized in that the downward inclined arrangement.

According to another feature of the present invention, a fuel filter 190 disposed on the supply pipe 151 to filter foreign substances of gasoline injected into the carburetor 140; further comprising, the fuel filter 190 A fire fighting engine pump system is provided, characterized in that it is mounted on the pipe line holder 170 on the supply pipe line 151 or disposed close to the pipe line holder 170.

According to another feature of the present invention, a pump unit 110 for supplying water pressure to the fire water pipe while pumping the supplied fire protection water, a fuel tank 120 for storing gasoline, and the gasoline as a power source and according to a control signal The engine unit 130 that drives and provides driving force to the pump unit 110, the carburetor 140 that mixes the injected gasoline and air and supplies it to the engine unit 130, and the emergency signal received from the outside. In a fuel supply device for a fire fighting engine pump system for supplying gasoline to a fire fighting engine pump system including a control module 160 for driving and controlling the engine unit 130, between the fuel tank 120 and the carburetor 140 A supply line 151 connected; A fuel pump 152 disposed on the supply pipe 151 and pumping gasoline and pumping gasoline to the carburetor 140; A recovery pipe 153 connected between the fuel tank 120 and the carburetor 140; And a normal open valve 154 disposed on the recovery pipe 153 to close the open pipe when a control signal from the control module 160 is input and open the pipe when the control signal is blocked. A fuel supply device for a fire fighting engine pump system is provided.

According to another feature of the present invention, the normal open valve 154 is a setting required for the gasoline stored in the carburetor 140 to be burned by the engine unit 130 according to the control signal of the control module 160 There is provided a fuel supply device for a fire fighting engine pump system, characterized in that the recovery pipe 153 is closed after the waiting time has elapsed.

As described above, according to the present invention, the supply pipe 151 connected between the fuel tank 120 and the carburetor 140, and the supply pipe 151 are disposed on the supply pipe 151 to pump gasoline while being pumped to the carburetor 140. The fuel pump 152 and the recovery pipe 153 connected between the fuel tank 120 and the carburetor 140 are disposed on the recovery pipe 153 and close the open pipe when a control signal is input. And when the control signal is blocked, a fuel supply device 150 including a normally open valve 154 that operates to open a closed pipe is provided, and the control module 160 is provided with a pump unit 110 when an emergency signal is received from the outside. ) Operates and the recovery pipe 153 is closed, and when an emergency release signal is received or a manual stop operation is performed, the pump unit 110 is stopped and the recovery pipe 153 is opened so that the engine unit 130 and the normal open valve ( By controlling the drive 154, when the engine unit 130 is stopped, the gasoline injected into the carburetor 140 is automatically recovered to the fuel tank 120 along the recovery pipe 153 to improve the operational reliability of the system in an emergency even if it is not driven for a long time. Can be guaranteed.

In addition, the normal open valve 154 is disposed at a higher position than the fuel tank 120, the carburetor 140 is disposed at a higher position than the normal open valve 154, and the recovery pipe ( 153) is arranged in a downwardly inclined shape as a whole, so that gasoline is automatically recovered by its own weight to the fuel tank by simply opening the normal open valve 154 and the drain structure of residual oil is simple, so manufacturing cost can be significantly reduced. have.

1 is a rear view showing the overall configuration of a fire fighting engine pump system according to a preferred embodiment of the present invention,
2 is a partial enlarged view showing the configuration of a fuel supply device for a fire fighting engine pump built in the fire fighting engine pump system according to a preferred embodiment of the present invention;
3 is a perspective view showing the configuration of a fuel supply device for a fire fighting engine pump according to a preferred embodiment of the present invention,
Figure 4 is a perspective view for explaining the operating principle of the fuel supply device for the fire engine pump according to a preferred embodiment of the present invention,
5 is a flow chart for explaining the operating principle of the fire engine pump system according to a preferred embodiment of the present invention.

Objects, features, and advantages of the present invention described above will become more apparent through the following detailed description. Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The fire fighting engine pump system according to a preferred embodiment of the present invention is a system that provides high-pressure fire protection water to fire water pipes by emergency driving a pump receiving fire water when a fire occurs.When the engine is stopped, gasoline injected into the carburetor or supply pipe is It can be automatically and completely returned to the fuel tank to ensure the reliability of the system's operation in case of an emergency.

To this end, as shown in FIGS. 1 to 2, a pump unit 110, a fuel tank 120, an engine unit 130, a carburetor 140, a fuel supply device 150, and a control module 160 are included. .

First, the pump unit 110 receives the driving force of the engine unit 130 and pumps the fire extinguishing water supplied from the water source to provide water pressure to the fire extinguishing water pipeline, and the fuel tank 120 drives the engine unit 130. The required amount of gasoline is stored.

The engine unit 130 uses gasoline as a power source and is driven according to a control signal to provide a driving force necessary for the pump unit 110 to pump. To this end, a coupling (not shown) is disposed between the drive shaft of the engine unit 130 and the driven shaft of the pump unit 110, and an impeller (not shown) connected to the driven shaft is disposed inside the pump unit 110 When the impeller rotates with the rotational force of, the fire prevention water injected into the inside flows toward the discharge pipe, forming water pressure. Here, the pump unit 110 meets the demands of consumers who require horsepower (PS) of the engine unit 130, suction/discharge diameter (A), discharge amount of the pump (Q), and total lift height (H). The specifications are determined by this, and various multi-stage structures from 2 to 7 stages can be used.

The carburetor 140 mixes air so that gasoline can be supplied and combusted in the engine unit 130 and is provided to the engine unit 130, and the fuel supply device 150 uses gasoline stored in the fuel tank 120. Inhaled and injected into the carburetor 140.

2 to 4, the fuel supply device 150 includes a supply pipe 151 connected between the fuel tank 120 and the fuel inlet 141 of the carburetor 140, and the supply pipe. A fuel pump 152 disposed on the top of 151 and pumping gasoline and pumping gasoline to the carburetor 140, and a recovery pipe 153 connected between the fuel tank 120 and the fuel cup 142 of the carburetor 140 ), and a normal open valve 154 disposed on the recovery pipe 153 to close the open pipe when a control signal is input and open the closed pipe when the control signal is blocked.

In addition, the fuel pump 152 is connected to the engine unit 130 by a pressure pipe 155 as shown in FIG. 2 to receive the pressure generated when the engine unit 130 is driven to serve as a power source required for the pumping operation. In addition, it may be driven in the form of a motor pump using a drive motor or the like. In addition, the engine unit 130 and the fuel pump 152 are mounted on the base frame 180 horizontally disposed on the ground and installed to be spaced apart from the ground.

A magnet switch for adjusting the mixing ratio of the carburetor 140 for automatic operation of the engine unit 130, a fuel filter 190 that filters gasoline pumped from the fuel pump 152 and supplied to the carburetor 140 to filter out foreign substances ), a battery for initial starting of the engine unit 130, starting of the normal open valve 154, and starting of the magnet switch is further provided.

The control module 160 is a control panel panel that centrally controls the supply of fire extinguishing water according to an emergency signal, and when an emergency signal is received from the integrated disaster prevention system or fire detection means, the pump unit 110 operates and the recovery pipe 153 is closed. When an emergency release signal is received or a manual stop operation is performed, the engine unit 130 and the normal open valve 154 are driven and controlled so that the pump unit 110 is stopped and the recovery pipe 153 is opened.

Here, the emergency signal may be a control signal that detects the occurrence of a fire and drives the fire fighting engine pump system, and when it is set to preferentially drive the electric pump for supplying fire water that is driven by commercial power or emergency power to the integrated disaster prevention system. In an emergency situation in which the electric pump is not operated, the fire fighting engine pump system may be driven by receiving the emergency signal. In addition, if an emergency release signal is received at a time when the supply of fire extinguishing water becomes unnecessary according to the items set in the integrated disaster prevention system, the operation of the fire fighting engine pump system is stopped, or when a separate emergency release signal is not set, the user can control the module 160 ), it is possible to stop the system operation by manual stop operation using the operation button. In addition, as shown in FIGS. 1 and 3, the control module 160 may be installed at a predetermined height by being mounted on an upper portion of a post 181 that is arranged upright by being coupled to a base frame 180.

In addition, when the emergency signal is received, the control module 160 controls the starting motor of the engine unit 130 to be started, but when the engine unit 130 is not started, the set waiting time has elapsed. Controls to perform a method of attempting to start again a plurality of times, and drives and controls the normally open valve 154 so that the recovery pipe 153 is blocked at the same time as the first start attempt of the engine unit 130, but the engine unit 130 It is desirable to control so that the blocked state is maintained for a set time when attempting to start the ).

This means that only when the normally open valve 154 is kept in a closed state, the fuel pump 152 is operated by starting the engine unit 130, and when the fuel sucked from the fuel tank 120 is supplied to the carburetor 140, the carburetor ( This is because the gasoline supply state required for driving the engine unit 130 can be maintained by blocking the drain cock of the fuel cup 142 provided in 140).

Through the combined configuration of the pump unit 110, the fuel tank 120, the engine unit 130, the carburetor 140, the fuel supply device 150 and the control module 160 as described above, the engine unit 130 When the gasoline is stopped, gasoline injected into the carburetor 140 is automatically recovered to the fuel tank 120 along the recovery pipe 153 to ensure the operational reliability of the system in case of an emergency.

On the other hand, the control module 160, when the emergency release signal is received, the inside of the carburetor 140, more precisely, the fuel cup 142 and gasoline injected into each jet or nozzle by the engine unit 130 Gasoline is recovered from the carburetor 140 to the fuel tank 120 by controlling the drive to open the normal open valve 154 so that the recovery pipe 153 is opened after the set waiting time for combustion has elapsed. Here, the set waiting time may preferably be set to around 2 minutes, but may vary according to the gasoline combustion time per unit time of the engine unit 130.

In addition, as shown in FIG. 4, the normal open valve 154 is disposed at a position H2 relatively higher than the position H1 of the fuel tank 120, and the carburetor 140 is a normal open valve ( It is disposed at a relatively higher position (H3) than 154, and the recovery pipe 153 is arranged in a downwardly inclined shape, so that gasoline is transferred to the fuel tank by its own weight only by opening the normal open valve 154. It can be automatically recovered, and its simple structure can significantly reduce manufacturing costs.

In addition, as shown in Figs. 1 and 3, a pipe line holder 170 is disposed at a position relatively higher than the carburetor 140, and the supply pipe 151 is mounted on the pipe line holder 170 so that both sides are inclined downward. It is preferred to be arranged.

In addition, the fuel filter 190 disposed on the supply pipe 151 filters foreign substances of gasoline injected into the carburetor 140, and is mounted on the pipe rack 170 on the supply pipe 151 or the pipe rack ( By being disposed close to 170, a small amount of tar generated when gasoline disposed in the supply pipe 151 is evaporated may be filtered by the fuel filter 190 to prevent it from flowing into the carburetor 140.

Therefore, when the engine unit 130 is stopped and the normal open valve 154 is opened, gasoline present in the portion inclined downward toward the fuel inlet 141 on the supply pipe 151 is directed toward the carburetor 140 by its own weight. Gasoline that is introduced and inclined toward the fuel pump 152, in particular, gasoline existing between the fuel filter 190 and the fuel pump 152 is in a vacuum state due to the high pressure introduced into the fuel pump 152 and waits for a long time. Even if it is placed on the pipeline in the state, vaporization hardly occurs.

And,

Next, the operation principle of the fire fighting engine pump system according to a preferred embodiment of the present invention will be described with reference to FIG. 5.

First, when an emergency signal is received from the outside to the control module 160 (S211), the control module 160 drives the engine unit 130 (S212) and blocks the recovery pipe 153 with the normally open valve 154. Outputs a control signal for

More specifically, starting of the engine unit 130 in an emergency is performed by the command of the control module 160 when the starting motor (DC 12V, 0.6kW) of the engine unit 130 is started and the fuel and air of the carburetor 140 are The engine unit 130 can be started at the required mixing ratio at the time of initial startup by pulling a wire connected by a wire between the choke lever for adjusting the mixing ratio and the magnet switch. If the engine unit 130 does not start at the first attempt, the control module 160 attempts to start again at a waiting time (for example, 20 seconds) and the starting motor is KEY IN for the second and third consecutive times. It is desirable to set the time in the substrate. And when the engine unit 130 starts, the magnet switch is turned off after a waiting time (for example, 15 seconds), and the choke is caused by the tension of the spring between the choke lever of the carburetor 140 and the bracket on the upper part of the air cleaner body. Leba returns to its original state.

The normally open valve 154 in an open state according to the output of the control signal shuts off the recovery pipe 153 (S214) while closing (S213), and the supply pipe 151 is driven by the engine unit 130 Gasoline stored in the fuel tank 120 is supplied to the fuel inlet 141 of the carburetor 140 along the supply line 151 while the fuel pump 152 is pumped (S215) by supplying pressure through the pumping operation (S215). .

Thereafter, when an emergency release signal is received or a manual stop operation is performed, the control module 160 stops the engine unit 130, but gasoline stored in the fuel cup 142 of the carburetor 140 is transferred to the engine unit 130. During the set waiting time (for example, 2 minutes) required to be burned by the normal open valve 154, the output of the control signal continues so as to maintain the closed state.

More specifically, the normally open valve 154, which is a normally open type solenoid valve, is maintained in a closed state when electricity (control signal) is applied, and once electricity is supplied by the starting motor, the starting motor is It is preferable to set the time on the substrate of the control module 160 so that the closed state is maintained during the set waiting time even if the engine unit 130 is not started. This means that only when the normally open valve 154 is kept in a closed state, the fuel pump 152 is operated by starting the engine unit 130, and when the fuel sucked from the fuel tank 120 is supplied to the carburetor 140, the carburetor ( This is because the gasoline supply state required for driving the engine unit 130 can be maintained by blocking the drain cock of the fuel cup 142 provided in 140).

Thereafter, when the set waiting time elapses, the output of the control signal applied to the normal open valve 154 is stopped, and the closed normal open valve 154 operates to open and the recovery pipe 153 is opened.

As the recovery pipe 153 is opened, gasoline remaining in each jet or nozzle of the carburetor 140 is collected in the fuel cup 142 by its own weight, and the gasoline in the fuel cup 142 follows the recovery pipe 153 It is recovered to the fuel tank 120.

As described above, when the engine unit 130 is stopped, gasoline that has not been burned in the carburetor 140 is automatically recovered to the fuel tank 120 along the recovery pipe 153, and the stopped state of the engine unit 130 is Even if it lasts for a long time, since the normal open valve 154 is maintained in an open state, gasoline that may remain naturally falls by its own weight and is completely drained, so that the carburetor 140 is caused by tar generation due to vaporization of the residual fuel. Since the main jet, the throttle jet, and the malfunction of the carburetor 140 caused by clogging of the nozzle do not occur, the operation reliability of the system in an emergency can be guaranteed.

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and various substitutions, modifications and changes are possible within the scope of the technical spirit of the present invention. It will be obvious to those of knowledge.

100... Fire engine pump system
110... pump part 120... fuel tank
130... engine part 140... carburetor
150... fuel supply 151... supply line
152... fuel pump 153... return line
154... Normal open valve 170... Pipeline holder

Claims (4)

In the fire fighting engine pump system that provides water pressure to the fire water pipe by emergency driving in case of fire,
A pump unit 110 for supplying water pressure to the fire water pipeline while pumping the supplied fire protection water;
A fuel tank 120 for storing gasoline;
An engine unit 130 that uses the gasoline as a power source and drives according to a control signal to provide a driving force required for the pump unit 110 to pump operation;
A carburetor 140 that mixes the injected gasoline and air and supplies it to the engine unit 130;
A supply pipe 151 connected between the fuel tank 120 and the carburetor 140, and a fuel pump 152 disposed on the supply pipe 151 to pump gasoline while pumping gasoline to the carburetor 140, The recovery pipe 153 connected between the fuel tank 120 and the carburetor 140, and disposed on the recovery pipe 153 closes the open pipe when a control signal is input, and closes when the control signal is blocked. A fuel supply device 150 including a normal open valve 154 operating to open a pipeline; And
When an emergency signal is received from the outside, the pump unit 110 operates and the recovery line 153 is closed, and when an emergency release signal is received or a manual stop operation is performed, the pump unit 110 stops and the recovery line 153 is opened. A fire fighting engine pump system including; a control module 160 for driving and controlling the engine unit 130 and the normally open valve 154 so that it is possible.
The method according to claim 1,
The normal open valve 154 is disposed at a position (H2) relatively higher than the position (H1) of the fuel tank 120,
The carburetor 140 is disposed at a relatively higher position (H3) than the normal open valve 154,
The recovery pipe 153 is a fire fighting engine pump system, characterized in that the overall arrangement is inclined downward.
The method according to claim 2,
The control module 160,
When the emergency signal is received, the starting motor of the engine unit 130 is controlled to start, but if the engine unit 130 does not start, the method of attempting to start again after the set waiting time has elapsed is repeated multiple times. Control to perform,
The normal open valve 154 is driven and controlled so that the recovery pipe 153 is blocked at the same time as the engine unit 130 attempts to start the first, but the engine unit 130 is continuously blocked for a set time when attempting to start the engine unit 130 Fire fighting engine pump system, characterized in that for controlling to be maintained.
A pump unit 110 that supplies water pressure to the fire extinguishing water pipeline while pumping the supplied fire extinguishing water, a fuel tank 120 that stores gasoline, and the gasoline as a power source and driving power to the pump unit 110 by driving according to a control signal The engine unit 130 that provides a, and a carburetor 140 that mixes the injected gasoline and air and supplies it to the engine unit 130, and drives and controls the engine unit 130 according to an emergency signal received from the outside. In the fire engine pump system fuel supply device for supplying gasoline to the fire engine pump system including the control module 160,
A supply pipe 151 connected between the fuel tank 120 and the carburetor 140;
A fuel pump 152 disposed on the supply pipe 151 and pumping gasoline and pumping gasoline to the carburetor 140;
A recovery pipe 153 connected between the fuel tank 120 and the carburetor 140; And
Fire fighting including a normal open valve 154 disposed on the recovery pipe 153 to close the open pipe when a control signal from the control module 160 is input and open the pipe when the control signal is blocked. Fuel supply device for engine pump system.

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