RU2522981C1 - Fire fighting vehicle of water and foam extinguishing with storage and dispensing system of foaming agent - Google Patents

Abstract

FIELD: fire safety.

SUBSTANCE: fire fighting vehicle of water and foam extinguishing with the storage and dispensing system of foaming agent, comprising a base chassis, storage tanks for water and foaming agent, a fire pump engine driven by chassis engine for water supply and a separate pump for foaming agent, water and foam communications with the system of automatic dosing of foaming agent, compartments for storage of fire and technical equipment and the saloon type cabin. At that for storage and supplying by the pumps of fire extinguishing agents one main container (cistern or tank) for water or foaming agent is used, and at least two containers (tanks) built into it with heating device of the foaming agent and with the volume of not less than 10% each of the capacity of the main container for one or different foaming agents, as well as communication to supply foaming agents from at least two external containers.

EFFECT: increase in operational efficiency of application of fire tanker and efficiency of use.

2 cl, 2 dwg

Description

The invention relates to the field of fire fighting equipment, in particular to fire-fighting vehicles of water-based extinguishing, and is intended to extinguish large fires.

World practice has shown that in order to deal with fires at industrial enterprises, oil and gas production and processing facilities, railway and air transport, a large number of physical and technical resources are required. In this regard, much attention is paid to the development of various effective fire extinguishing agents and mobile equipment, their delivery and supply.

The most common extinguishing agents include water and foaming solutions, which are used to produce foams or wetting solutions and are used to extinguish a fire. Their use allows to reduce the consumption of extinguishing agent, to reduce the extinguishing time and losses from the fire.

Important indicators characterizing the effectiveness of a firefighting vehicle are its mobility (dynamic qualities, maneuverability, speed), stock of exported fire extinguishing substances (water, foaming agents), supply and pressure of the pumping unit, parameters of manual and especially fire monitors, on which the range of fire extinguishing substances and extinguishing efficiency, the number of places for combat crew.

Leading foreign companies in the USA, Germany, France, Austria, etc. began to master the gamut of fire engines that belong to the class of object vehicles. The supply of extinguishing agents in them is more than 4000 l and the pump flow from 5000 to 10000 l / min. These fire trucks are equipped with manual and automatic dispensing systems for various blowing agents to obtain the necessary concentrations of blowing agent solutions and foam multiplicity.

As an analogue to the proposed device of a fire truck, patent DE 3038334, cl. A62C 27/22, publ. 10/21/1982, the device for a fire engine for the introduction of foaming or film-forming active additives in the flow of fire extinguishing water. In this solution, the foaming agent is taken from only one foam tank using a foam pump due to the dispenser and microprocessor, regardless of the parameters of the main pump, and is automatically dispensed into only one common water line communications.

The disadvantage of this analogue is that when extinguishing it is impossible to supply water and solutions of foaming agents with a given concentration from the same fire engine for the formation of foams with different parameters.

Closest to the claimed invention is a fire truck AC 10-150 (631708) -01НН (test report of a standard sample of a fire truck from February 18, 2010 No. 0018 / 2.1-2010, www: http: //www.peleng. Info /) , which is taken as a prototype.

This fire truck mounted on an all-wheel drive chassis has a tank for storing 10,000 l of water and two tanks for foaming agents with a capacity of 600 and 300 l, a fire pump with a feed of 150 l / s, a fire monitor with a flow rate of 125 l / s, water-filled communications with an automatic foaming agent dosing system in two pressure pipes (Dy 80 and Dy 150) on each side of the AC. Water utilities have one pipe for collecting a foaming agent from a third-party tank. AC is equipped with compartments for fire-technical weapons and a double six-seater cabin. Engine power and other parameters of the base chassis allows you to reach speeds of up to 80 km / h.

The disadvantages of this tanker are:

1) A limited supply of various blowing agents to extinguish complex and large fires, as well as the possibility of their collection from only one external tank.

2) The limited value of the maximum speed of a fire truck is 80 km / h and the number of seats in the cabin for combat crews is 6.

The purpose of the present invention is to ensure the speed of arrival of a fire-fighting vehicle of water extinguishing to a fire site with a supply of extinguishing agents with an adapted storage and dosing system for various blowing agents and effective use in fire and rescue operations.

This goal is achieved by the fact that a fire-extinguishing fire truck with a foaming agent storage and batching system containing a four-wheel drive base chassis, water and foaming agent storage tanks, a fire engine-driven water pump for a water supply and a separate foamer pump, foam communication with an automatic system dosing of a foaming agent, compartments for storing fire-technical weapons and a cabin of a saloon type, in which for storing and supplying fire extinguishing substances by pumps, and one main tank (tank or tank) is used for water or a foaming agent and at least two tanks (tanks) built into it with a heating device for the foaming agent and a volume of at least 10% each of the capacity of the main tank for one or different foaming agents, as well as communication for supplying foaming agents from at least two external containers.

In the proposed device, foaming agents of different classes can be stored, if necessary, in three tank containers: with a reserve of 10,000 liters and in two tanks of 1000 l each (when water is supplied from an external source) or with a reserve in two tanks of 1000 l (when water is supplied from its own tank and a third-party source) with a standard margin of at least 6% of the capacity of the water tank. Autonomous foaming tanks have a foaming agent heating and are structurally placed inside the water tank, which ensures adaptability at low temperatures.

Figure 1 shows a fire-extinguishing fire truck with a storage system and a batch of foaming agent, such as a fire truck AC 10-150, developed on the basis of the chassis KamA3-65225, figure 2 shows a schematic diagram of the water communications of a fire truck.

The car consists of the following main parts (Fig. 1): prepared chassis 1, cab 2, combat crew cabin heating system 3, body 4, pump compartment 5, pump compartment heating system 6, vessels for extinguishing agents: water (or foaming agent) 7 , foaming agents 8 and 9, heating systems for foam tanks 10, a pumping unit 11, a fixed fire monitor 12, electrical equipment 13, light and sound signaling devices, communications equipment 14, fire-fighting equipment 15, and installation of a spare wheel 16.

In the proposed fire engine, the powerful engine and the design of the vehicle allow it to reach speeds of up to 90 km / h and freely transport 7 members of the fire brigade in a cabin with 3 rows of seats.

The technical effect realized by the claimed fire extinguishing vehicle with a storage system and dispensing foaming agent, allows to obtain the following.

This fire truck has a pumping unit 11 with a pump 17, a water system with a system for storing and dispensing large stocks of water and foaming agents and their foam system (Fig. 2), which has a self-priming gear pump 18 and works on all types of foaming agents in the flow range of the fire pump 17 from 3 to 150 l / s, injecting a foaming agent into the pressure nozzles of the pumping unit through control valves 19, 20, 21 at least at 3 injection points. It allows you to simultaneously apply a foam solution to one pressure line, and water to another. The electronic foam mixing system, using the linear foaming agent dispenser control unit 22, 23, 24, provides the foaming agent to the pressure nozzles with an accuracy of 5% to the volume of the used foaming agent in the entire pump supply range and allows foaming agents to be set at a given concentration, while the foaming agent can be taken from the foam tanks 8 and 9 or from the tank 7 and from two third-party tanks 25 and 26, and the water through the suction hoses 27, 28, 29, 30. The supply of extinguishing agents from the tanks of the fire truck 7, 8, 9 on the fire monitor 12 and manual and portable fire monitors 31, 32, 33, 34, 35, 36 are carried out by opening the corresponding valves 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55.

The pump installation can be controlled both in automated (from the cab or pump compartment) and in manual (from the pump compartment) modes. The pump provides operation on PA in sea and fresh water.

High-performance fire pumping unit and foam system with 3. Provision with 3 injection points of a foaming agent, through regulators 19, 20, 21 and electronic control valves: electromagnetic flowmeters 37, 38, 39, foaming agent 40, 41, 42 and control units for linear foaming agent dispensers 22, 23, 24, with automatic maintenance of the foaming agent dispensing in accordance with the flow rate of water in the discharge pipe, independently at each injection point, it allows optimally spending the various brands of foaming agent used lei with the effective supply of extinguishing agents of the specified output parameters for the flow of extinguishing agents is carried out by selecting pumping units, with the appropriate characteristics, and the size of water lines.

The proposed design indicators make it possible, in comparison with the prototype, to increase the efficiency of the arrival of a fire truck and make more efficient use of the existing supply of fire extinguishing substances and other fire-technical weapons during fire-rescue operations.

A water-fire extinguishing vehicle with a foam storage and dosing system can be used for fire and rescue operations during the elimination of complex and large fires at critical and other facilities.

Claims (2)

1. Fire-extinguishing vehicle with a foaming agent storage and dosing system, including a base chassis, storage tanks for water and a foaming agent, a fire engine-driven fire pump for a water supply and a separate pump for a foaming agent, water-filled communications with an automatic foaming agent dosing system, compartments for storage of fire-technical weapons and cabin cabin type, characterized in that for the storage and supply of pumps of fire extinguishing substances one main tank is used (cis a turn or tank) for water or a foaming agent and at least two built-in containers (tanks) with a heating device for the foaming agent and a volume of at least 10% each of the capacity of the main tank for one or different foaming agents, as well as communications for supplying foaming agents not less than two external containers. 2. Fire-extinguishing vehicle with a foam storage and dosing system according to claim 1, characterized in that the ratio between the parameters of the quality indicators of the tank (tank or tank) for water or foam, tanks for foam, the supply of the main pump, the flow rate of the gun barrel and speed fire engine and the number of places for combat crew is in any ratio of these indicators not less than:
10000 (l) :( 1000 + 1000) (l): 150 (l / s): 125 (l / s): 90 (km / h): 7 (pcs.).

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