JPS60114275A - Jet liquid flow controller of turret nozzle for fire truck - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a turret nozzle discharge liquid 1B control device for a fire engine.

Conventionally, when emitting radioactive liquid such as water or fire extinguishing foam (a mixture of chemical and water) from the turret nozzle of a chemical fire engine used for protection at airports, etc., the amount of radiation is determined according to the scale of the fire. To achieve this, firefighters would manually adjust the throttle lever while relying on their intuition while visually checking the pump discharge pressure gauge on the instrument panel. However, the actual amount of radiation determined varies from person to person depending on the firefighter's skill level.
Not only can fire extinguishing operations not be carried out effectively and quickly, but the hit rate of the radiation liquid against the fire point is poor, and there is usually a problem in that extinguishing liquid is consumed unnecessarily. In other words, conventional manual operations have the inconvenience of not being able to effectively extinguish fires according to the size of the fire.

The present invention was made in view of such conventional problems, and an object of the present invention is to increase fire extinguishing efficiency by determining the amount of liquid emitted from a turret nozzle based on the output of a sensor that detects the scale of a fire. It is something to do.

In order to achieve this objective, the present invention uses a pressure sensor that detects the discharge pressure of the pump, a heat sensor that detects the scale of the fire, and performs calculations based on the outputs of these pressure sensors and heat sensors to determine the scale of the fire. The radiation MIN control device for the turret nozzle is composed of a calculation device that outputs optimum radiation amount data according to the calculation device, and a drive device that drives and controls the pump based on the output of this calculation device.

Embodiments of the present invention will be specifically described below with reference to the drawings.

Figure 1 shows the specific configuration of this embodiment in a block connection diagram. In the figure, (1) is a turret nozzle installed on the roof of the operating nozzle, and the nozzle elevation angle and horizontal angle can be arbitrarily set by a turret nozzle drive device (2).

(3) is a pump that sucks up water or fire extinguishing foam from a tank (not shown) and discharges it to the turret nozzle (1), and this pump (3) is driven by a drive device (4) powered by an engine or other power source. It becomes.

(5) is a discharge pipe that connects the pump (3) and the turret nozzle (1), and introduces discharged water and discharged foam into the turret nozzle (1). A pressure sensor (6) for detecting the discharge pressure of water and foam is provided in the middle of this discharge pipe (5), and the detection output from this pressure sensor (6) is inputted to the calculation device (7). It has become.

(8) is a heat sensor that outputs a signal depending on the scale of the fire.
Infrared sensors, temperature resistance elements, etc. are used. This heat sensor (8) outputs the fire point (large spread) and thermal temperature as output changes of electrical signals, and the detected data is input to the arithmetic unit (7), and both sensors (6) (
Based on the detection data of 8), the optimum radiation liquid amount data is calculated according to the scale of the fire.

(9) is a throttle control device that is driven in control 1 based on the radiation amount data, and the output of this is used to drive the drive device (4).
) is activated.

The drive device (4) is configured to adjust the pump discharge pressure by determining the rotational speed of the pump (3) based on the throttle output.

In the turret nozzle radiation liquid volume control device having such a configuration, the discharge pressure of the pump (3) driven by the drive device (4) allows a considerable amount of water and fire extinguishing to be discharged from the radiation port of the turret nozzle (1) every minute. Shoot foam or a mixture of these toward the point of fire.

In this case, when the scale of the fire changes due to the expansion of the fire point or the intensity of the fire, the heat sensor (8) detects this change and the detected data is sent to the computing device (7).
is input. The above-mentioned discharge pressure is also input to this calculation device (7), and based on these discharge pressure data and fire scale data, it outputs optimum radiated liquid amount data according to the fire scale. This optimum radiated liquid volume data is then input to the slot unit (9), which adjusts the pump throttle and automatically adjusts the drive rotation speed of the pump (3) driven by the drive unit (4). is set to Therefore, the amount of water or foam radiated from the turret nozzle (1) toward the fire point, ie, the amount of radiated liquid, is optimized in accordance with the scale of the fire point, which changes from time to time.

As a result, the conventional firefighter's level of control becomes uncomfortable when adjusting the amount of liquid emitted from the turret nozzle (1).
Fire extinguishing work can be carried out efficiently. Furthermore, it is possible to eliminate waste such as spraying a large amount of water onto a small fire point.

In addition, in the case where the turret nozzle (1) can select between fog radiation and straight radiation, the calculation device (7) controls the amount of liquid radiated and the switching of the radiation according to conditions such as the spread of the fire. It can be performed.

In addition, the discharge pressure of the pump (3) may fluctuate due to external factors regardless of the scale of the fire, which causes the amount of liquid radiated to change, but the pressure sensor (6) constantly monitors the discharge pressure. For example, when the discharge pressure becomes high, the throttle control device (9) is used to suppress the discharge pressure.
) to cause the arithmetic unit to perform control operations.

The pump (3) may be configured to emit water or fire extinguishing foam individually, or to emit a mixed liquid of water or fire extinguishing foam.

As described in detail above, according to the present invention, in a device that controls the amount of water and fire extinguishing foam emitted from the turret nozzle, the discharge pressure of the pump that discharges water and fire extinguishing foam to the turret nozzle is controlled. It is detected by a pressure sensor, and based on this detection data, the discharge pressure is calculated and output according to the scale of the fire, and the radiation amount is controlled in a self-exciting manner based on this output. Not only can the dependent radiation amount adjustment work be omitted, but also the radiation amount can be accurately set according to the scale of the fire. Further, it is possible to prevent wasteful consumption of water and fire extinguishing packages, and it is also advantageous in that it is highly economical.

[Brief explanation of the drawing]

11 is a block connection diagram showing a liquid ejection amount control device for a turret nozzle for a fire engine according to the present invention. (1)...Turret nozzle, (31...Pump, (
4)...Drive device, (6)...Pressure sensor, (7)
... Arithmetic device, (8) ... Heat sensor. Patent applicant: Tokyu Vehicle Manufacturing Co., Ltd. 1 Figure continued on page 1 0 Inventor: 1) Chapter ■ Inventor: 1) Takeo @ Inventor: Kyousei Yamashita Inventor: Akira Shizukuishi @ Inventor: Tsuboi Mo 1 Kamaritani-cho, Kanazawa-ku, Yokohama City, Tokyu Sharyo Manufacturing Co., Ltd. Head Office, Yokohama, Yokohama, Yokohama

Claims (1)

[Claims] A pump that supplies water and fire extinguishing foam to the turret nozzle, a pressure sensor that detects the discharge pressure of this pump, a heat sensor that detects the scale of the fire, and fire detection based on the outputs of these pressure sensors and heat sensors. Radiation flow rate control device for a turret nozzle for a fire engine↑, comprising a calculation device that calculates and outputs radiation amount data that is optimal according to the scale, and a drive device that drives the pump based on the output of the calculation device.