RU2435621C2 - Telemechanical fire fighting installation with fire extinguishing means transportation to seat of fire by weight handling equipment - Google Patents

Abstract

FIELD: medicine, fire-fighting means.

SUBSTANCE: invention relates to fire-fighting equipment. An installation comprises an operator's control panel, a fire controller equipped with computers with installed software, an emergency video control system for evaluation of the parameters of a seat of fire, a fire and fire-fighting mode warning system. Also, it contains a remote controlled beam crane for moving a flexible hose with sprays, fire extinguishing means equipped with remote controlled actuators, a pipeline with remote controlled switch-gears for connecting fire fighting modules and a fire line to the flexible hose with one or more sprays equipped with a pressure alarm for fire extinguishing agent release control and delivered in a zone of the twisted long flexible hose with sprays for telemechanical fire suppression, a pipeline branch.

EFFECT: invention allows fire fighting operations in hire fire risk environment by telemechanical motion of the primary fire extinguishing means to a seat of fire.

2 dwg

Description

The invention relates to fire fighting equipment, namely to "uninhabited" methods of fighting fire in the initial stage of its development at hazardous production facilities without the constant presence of maintenance personnel. Designed for local fire extinguishing in conditions of increased fire risk by telemechanical (remote) movement of the primary fire extinguishing means to the detected fire source, for the operational casting of fire extinguishing substances (OTV) directly into the fire center with minimal OTV costs.

Various devices are known for extinguishing a fire locally at a remote distance from a fire source. For example, normative documents on fire safety (see. "Technical regulation on fire safety requirements" No. 123-F3, Code of rules SP 5.13130.2009 "Fire protection systems. Automatic fire alarm and fire extinguishing systems. Norms and design rules") for detection, the elimination or limitation of the spread of fire beyond the outbreak without the direct presence of a person in the installation area, under the influence of fire or explosion factors dangerous to humans, the use of botanized fire extinguishing installations and remotely controlled fire monitors using water or a foaming agent as an extinguishing agent and designed to form and direct a continuous or atomized stream of an extinguishing agent to the fire site. only one type of extinguishing agent is used - either water or foam solutions. In addition, for stationary installations of remote stem-type fire extinguishing, it is significantly difficult to organize local extinguishing in production facilities cluttered with equipment (since they are most effective only in the line of sight). As a result, additional equipment is required to organize local extinguishing of each of the "shaded" zones, which increases the cost of fire protection of the facility.

The disadvantages described above do not allow the effective use of robotic fire extinguishing installations and remotely controlled fire monitors to organize local (with minimal extinguishing agent costs) fire extinguishing equipment for large shelters of hazardous production facilities cluttered with equipment. For example, stem installations are difficult to use instead of gas pumping units (GPU) used for protecting large hangars, volumetric gas fire extinguishing installations that provide effective fire extinguishing, do not leave marks on equipment outside the fire zone, but require a large amount of extinguishing agent.

The closest analogue of the claimed technical solution is the barrel type fire extinguishing installation described in patent RU 2179048. The known fire extinguishing installation is made telescopic, has a fire extinguishing device with the ability to rotate and extend the barrel in space at various distances with distance from the fire. But this installation is also the most effective only in the line of sight of the guided gun mount, which makes it difficult to use it in production facilities cluttered with equipment.

The objective of the invention is to provide remote movement of fire extinguishing means to the identified local fire source and their subsequent safe and operational use for local fire extinguishing in the initial stage of development of a fire with minimal cost of extinguishing agent. Telemechanical fire extinguishing installation is offered as an economical and safe alternative to standard automatic installations of volumetric carbon dioxide fire extinguishing, used for fire protection of large (more than 1200 m ³ ) fire and explosion hazard hangars of gas turbine gas pumping units (GPU) located in hard-to-reach areas. The need to find an alternative technical solution is due to the fact that although the use of a large amount of liquid carbon dioxide (several tons) provides effective volumetric extinguishing even with partial damage to the GPU shelter and leaves no traces on equipment outside the fire zone, the cost of expeditious delivery of fire extinguishing gas to inaccessible areas is high where most of the year the only means of delivery is a helicopter. At the same time, maintenance personnel are not at the working gas compressor unit around the clock, which complicates the use of primary fire extinguishing means to fight a fire in the initial stage of its development, and the use of primary fire extinguishing means by people to eliminate a developed fire is unjustified, given the low fire resistance of the equipment and the high rate of fire development, increases the likelihood human exposure to hazardous fire / explosion factors.

This problem is solved through the use of standard handling equipment used at the protected hazardous production facility. At the same time, as a "delivery vehicle" of fire-fighting equipment, a crane, for example a crane-beam in a protected room, has an advantage in terms of reliability, because It is located in the upper zone of the object, remote from the potential fire source, and moves along separate paths, thus increasing the likelihood that the path to the fire source will not be blocked and the automation of the fire fighting process is facilitated. In addition, the ability to move the payload in two planes gives the crane an additional advantage in terms of mobility compared to other means for transporting goods (for example, electric vehicles). This is the technical result of the claimed technical solution.

A telemechanical fire extinguishing installation is declared, including a computer-based operator console (one for several installations), a fire controller equipped with a computer with software installed on it, an emergency video monitoring system for determining the parameters of a fire source, a fire and fire extinguishing warning system, and a remote control crane a beam for moving a flexible hose with spray guns, fire extinguishing equipment equipped with remote-controlled triggering elements, a pipeline with remote-controlled spray switchgear for connecting fire extinguishing modules and fire water supply to a flexible hose with one or more spray guns, equipped with a pressure signaling device for controlling the release of fire extinguishing substance and brought to the deployment area of a rolled long flexible hose with a spray gun for telemechanical extinguishing, pipe branches, also brought into the hangar zones near evacuation exits for connecting hoses with spray guns for manual extinguishing; pipeline exits are equipped with shut-off equipment.

Extinguishing is carried out by supplying a fire extinguishing agent through a flexible hose through “barrage” spray guns, when a longitudinal beam is moved with a crane-beam with simultaneous transverse reciprocating movements over the fire in remote, automated or automatic control mode. After extinguishing, the equipment is cooled by water. Water is supplied through a flexible hose from a fire water supply system.

Figure 1 presents a block diagram of a system based on telemechanical fire extinguishing installations with the transportation of fire extinguishing means to the fire source with telecontrolled lifting and transport equipment of the protected facility, where:

1 - fire extinguishing means;

2 - remote-controlled starting elements;

3 - remote control switchgear;

4 - stationary pipeline for the supply of extinguishing agent;

5 - pressure extinguishing agent pressure switch;

6 - locking equipment with a position sensor;

7- flexible hose;

8 - block spraying extinguishing agent;

9 - fire controller;

10 - handling equipment;

11 - installation of a fire alarm;

12 - installation of emergency video monitoring;

13 - operator panel.

Figure 2 presents in the form of a flowchart of the sequence of actions of the telemechanical method of extinguishing, where:

1st stage - fire detection by installation of a fire alarm;

2nd stage - emergency shutdown of technological equipment;

3rd stage - warning personnel about a fire;

4th stage - determination of the parameters of the fire source (coordinates, size) by installing emergency video monitoring;

5th stage - the choice of fire extinguishing means;

6th stage - moving the spray guns of the extinguishing agent to the fire;

7th stage - the use of fire extinguishing means;

The 8th stage is a re-evaluation of the fire situation and the remaining life of the fire extinguishing equipment.

The claimed invention is as follows. Fire extinguishing without the direct presence of people in a danger zone where exposure to hazardous fire factors is possible is ensured by the sequence of actions shown in the flowchart (see Figure 2).

After the fire alarm installation 11 detects a fire in the protected area, an emergency stop of the processing equipment and personnel warning about the fire are made. The installation of emergency video monitoring 12 determines the dimensions and coordinates of the fire source for further fire fighting. Depending on the parameters of the fire source, the fire controller 9 determines the sequence of operations - fire extinguishing algorithm. Based on the adopted fire extinguishing algorithm, the fire controller 9 promptly selects the fire extinguishing means 1 and the remote transportation of the fire extinguishing agent sprayer unit 8 to the selected fire site by lifting and handling equipment 10. When the fire source enters the zone of effective action (extinguishing) of the transported fire extinguishing means by the fire controller 9, remote-controlled starting elements 2 and distribution devices 3 of the selected fire extinguishing means 1 for extinguishing are activated in accordance with the accepted algorithm. Remote control of the extinguishing agent output is carried out by the pressure alarm 5. After extinguishing, a re-evaluation of the fire situation in the protected area and the remaining life (condition) of the fire extinguishing agent is carried out. Based on the state of the fire situation and fire extinguishing means, further actions are determined, and if necessary, the actions are repeated first. Remote monitoring and control of the telemechanical installation is performed using the operator console 13.

When using fire extinguishing means 1 and pipe 4 for manual extinguishing, the remotely movable flexible hose 8 is turned off by locking equipment 6 with a position sensor (the sensor signal blocks the algorithm of the telemechanical extinguishing method).

Remote-controlled crane-beam is designed to move a flexible hose 7 with spray guns of extinguishing agent 8. Fire extinguishing equipment 1 is equipped with remote-controlled triggering elements 2. A stationary pipeline for supplying fire-extinguishing agent 4 with remote-controlled dispensers 3 for connecting fire extinguishing modules and fire water supply to a flexible hose 7 with one or several sprayers 8 is equipped with an extinguishing agent pressure switch 5 to control the release of the extinguishing agent and is brought into the zone once premises rolled up a long flexible hose 7 with a spray of extinguishing agent 8 for telemechanical extinguishing. Branches of the pipeline 4 are also led into the hangar zones near the evacuation exits for connecting manual flexible hoses with extinguishing agent spray guns for manual extinguishing, all exits of the stationary extinguishing agent supply pipe 4 are equipped with shut-off apparatus 6 with a position sensor.

Extinguishing is carried out by supplying a fire extinguishing agent through a flexible hose 7 through a block of fire extinguishing agent sprayers 8, which are “barrage” sprayers, when longitudinal movements with simultaneous transverse reciprocating movements above the fire in a remote, automated or automatic control mode are performed by a beam crane. After extinguishing, the equipment is cooled by water. The water supply is carried out through a flexible hose 7 from the fire water supply.

The claimed technical solution is based on the operational transportation of fire extinguishing means to the fire source with telecontrolled lifting and transport equipment (PTO) of the protected facility and remote control of the specified fire extinguishing means for supplying the extinguishing agent directly to the local flame center at the initial stage of the fire. The cost of extinguishing agent for fire protection of large shelters (hangars) of hazardous production facilities without the constant presence of maintenance personnel is reduced.

Fire extinguishing using the inventive installation has advantages when:

- the simultaneous extinguishing of the entire protected zone (volume) by standard (designed taking into account current regulatory documents) automatic / robotic fire extinguishing systems is deemed technically inappropriate (fire extinguishing agent may damage the protected equipment outside the fire zone) or economically (costs exceed the possible economic effect);

- the maintenance staff is at the operating facility around the clock, which makes it difficult to use primary fire extinguishing means to fight the fire in the initial stage of its development, and the use by people of primary fire extinguishing means to eliminate the developed fire unjustifiably increases the likelihood of exposure to a person from dangerous fire / explosion factors (in terms of exceeding established by law of individual fire risks).

Fire extinguishing, built on the use of fire-fighting means of fire fighting equipment of a protected facility as a telecontrolled “delivery vehicle”, has versatility, reliability, mobility, ease of automation and cost-effectiveness without compromising safety.

1) Fire extinguishing with the help of a telemechanical fire extinguishing installation on the basis of a fire fighting system is universal in terms of using various fire fighting means in the initial stage of its development:

- allows you to extinguish a fire with various types of fire extinguishers (water, air-foam, air-emulsion, gas, powder, combined). The moved fire extinguisher fire extinguisher (fire extinguisher atomizer on a flexible hose) is remotely activated when a fire has hit the zone of its effective action (extinguishing);

- allows you to isolate (cover) the fire source with a fireproof blanket (a compactly rolled fire-resistant fabric moved by the fire protection system to the flame unfolds (is released from the elements fixing the fabric) and is used to isolate the fire site from oxygen)

- allows you to isolate (cover) the fire with fire-resistant bulk material (sand) from the tank (moved VET in the fire of the tank with sand lose their tightness, and the sand falls asleep).

2) VET-based fire extinguishing is universal in terms of the use of various telecontrol schemes:

- allows you to provide "remote control" when the operator himself remotely (using video surveillance and remote control) remotely controls the VET and uses fire extinguishing means;

- allows to provide “automated control” when the operator selects and indicates one of the programmed fire extinguishing zones from the “picture” on the video surveillance system monitor. After that, the automation itself moves the fire protection system with a fire extinguisher (a fire extinguisher atomizer on a flexible hose) to the specified area and activates fire extinguishing means;

- allows for "automatic control" when the fire alarm automatically selects one of the programmed extinguishing zones. After that, the automation moves the fire-fighting equipment with a fire extinguisher (a fire extinguisher atomizer on a flexible hose) to the specified area and uses fire extinguishing means.

3) Reliable, because used "delivery vehicles" (such as a crane beam) are located in the upper zone of the object remote from the potential fire source (which reduces the likelihood of damage to the fire protection system) and moves along separate paths (it increases the likelihood that the path to the fire source will not be blocked in the event of an accident). Moreover, moving along the selected paths facilitates the task of automating the process of transporting fire extinguishing means to the fire source.

4) Mobile, because VET (unlike other means of transportation) has the ability to move the payload in two planes (vertically and horizontally), which makes it easier to avoid obstacles and implement fire extinguishing at several levels.

5) Economical, as when supplying an extinguishing agent only directly to the zone of a local fire source, it (less extinguishing substance as a consumable material) requires less than when extinguishing the entire shelter to be protected.

In addition, the efficiency of using the standard technological VET available at the protected hazardous industrial facility for servicing / repairing stopped equipment (when the fire hazard is reduced and personnel are constantly present at the facility, which makes it possible to use primary fire extinguishing means) and equipment not used during normal operation ( when the fire hazard is increased and the personnel are absent). The economical consumption of extinguishing agent and the “double” use of fire fighting equipment (for routine maintenance of stopped equipment and additionally for transporting fire extinguishing equipment at a working facility) can reduce the cost of fire protection of a hazardous industrial facility without unreasonably increasing the likelihood of exposure to a person from dangerous fire / explosion factors (excluded use of primary fire extinguishing means by people in case of increased fire hazard at a working facility).

Claims (1)

A telemechanical fire extinguishing installation, including an operator console, a fire controller, equipped with computers with software installed on it, an emergency video monitoring system for determining the parameters of a fire source, a fire warning system and fire extinguishing modes, characterized in that it contains a remote control crane for moving a flexible hose with spray guns, fire extinguishing equipment equipped with remote-controlled triggering elements, piping with remote-controlled distribution devices and for connecting fire extinguishing modules and fire water supply to a flexible hose with one or more spray guns, equipped with a pressure signaling device for controlling the release of extinguishing agent and brought to the deployment area of a rolled up long flexible hose with spray guns for telemechanical extinguishing, pipe branches, also brought into the hangar area near the evacuation exits for connecting hoses with spray guns for manual extinguishing, while the exits of the pipeline are equipped with shut-off equipment.

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