Foam Generator GPS 600. Penogenator stationary GPSS. Device, principle of operation of the foam generator

Description

MEDICAL MEDICAL PHARDS OF GPSS stationary foams are an element of stationary plants of the foam fire extinguishing of vertical tanks with a volume of more than 5000 m 3 at oil and gas enterprises and warehouses.

The foam generators of the GPSS series are mounted on the upper belt of RVS reservoirs.

Modification of the stationary foam generator GPC-2000A prevents the reduction of foam pressure at the expense of the guide cover.

Principle of action of the minogenerators of the average multiplicity of GPSS

The GPSS foam generators produce an air-mechanical foam of medium multiplicity from an aqueous solution of the foaming agent, forms a jet and foams to extinguish fire. This foam generator is suitable for a layered fire extinguishing method. When fireing in a reservoir with a stationary roof, foam is fed to the entire surface of the ignited petroleum product. In the tanks with a floating roof or pontions in the annular space between the wall of the tank and the metal diaphragm of the floating roof or pontoon.

Air-mechanical foam localizes the fire sections, reduces the evaporation of the fluid, and therefore the appearance of new combustible vapors, significantly reduces the temperature of the burning product.

Foam does not have a harmful effect on most materials and equipment, does not create an additional load on the design due to its minor bulk weight.

Construction of stationary foam generators GPSS

In the housing of the GPSS foam generator is a sprayer and cassette. At the bottom of the case is the air intake hole with a protective grid.

The solution for supplying an aqueous solution of the foaming agent of a stationary fire extinguishing system is attached to the generator through the inlet on the flange. The sprayer is a valve, which is one of the shoulders of a two-levy lever installed in the housing of the foam generator on the hinge.

At the time of extinguishing the fire, the solution of the foaming agent under pressure is supplied to the generator. Under the pressure of a jet from the sprayer, the flap turns around the axis of the hinge and removes the plug from the stop. The traction tension disappears, under pressure jet jet of the foaming agent, the lid turns around the hinge axis by 90 ° and opens the generator outlet. The sprayer creates a jet of foam in the form of a torch falling on the surface of the cassette. The mesh surface of the cassette creates a plurality of foam bubbles due to the injection of air through the intake hole at the bottom of the housing. The foam created in this way is directed into the gas-high space of the reservoir to extinguish the fire.

Diagram of the device of the stationary foam generator GPSS

1-case, 2-mount flange, 3-inlet, 4-flange for installation of the GPSS generator, 5-wall reservoir, 6 mm, 7-flange, 8-spray, 9-cover, 10-hinge, 11-valve , 12, 13-hinges, 14-plug, 15-rope, 16-manual drive, 17-stop, 18-bolt, 19-rod, 20-stud, 21-nut, 22-locking, 23-stop cover limiter, 24-wire for the period of transportation

Specifications of generators of foam of the average multiplicity of GPSS

GPSS GPSS Middle Stationary Farms are designed to use in stationary foam fire extinguishing installations vertical steel tanks With combustible and flammable liquids.

In accordance with PB03-605-03p.8.4. Stationary foam generators GPSs are included in the mandatory automatic fire extinguishing systems for oil and petroleum products. Installed on tanks RVS of 5000 m 3 or more.

The operation of the GPSS generators is based on the receipt of air-mechanical foam from the foaming agent to extinguish fire. Foam covers the surface of the product in the tank, overlapping oxygen access, and stops the combustion process.

The device is a water-based ejector apparatus. The foaming agent under pressure is supplied to the sprayer, where it is mixed with air. When this mixture passes through the holes of the mesh at the outlet, a foam is formed, which enters the gas-air space of the tank.

GPSS foam generators are produced in the climatic execution of U and uhl the category of placement I, in the atmosphere of type P GOST 15150.

Options for the manufacture of stationary foam generators GPSS

• GPSS-600 - stationary medium multiplicity foam generator with a capacity of 600 l / s;
• GPSS-2000 - stationary alternator of medium variability foam with a capacity of 2000 l / s.

Models are identical in the design and principle of operation, with the exception of differences in the size of the sprayer and the case. The GPSS-600A and GPSS-2000A models are supplied with a guide cover that prevents the weakening of the pioneer of the foaming agent.

Technical characteristics of GPSS generators

1-case, 2-housing of the sprayer assembly, 3-cassette, 4-grid, 5-wall housing, 6-hand, 7.8-flanges, 9-cap, 10-hinge, 11-valve, 12,13- Hinge, 14-plug, 15-rope, 16-handle, 17 Pop, 18-bolt, 19-rod, 20-stud, 21-nut, 22-Kondayka, 23-stop, 24-bolt, wire.

The connecting dimensions of the flanges of foam generators GPSS-600 and GPSS-2000

Installation scheme of stationary foam generators GPSS in the RVS Reservoir

Stationary foam generators are attached to the tank using a mounting flange. The outlet of the flange is closed by a hinge lid.

1-generator, 2,3-gaskets, 4-flange, 5-tank, 6-stage maintenance, 7-fencing, 8,9-diatraries, 10-hand drive.

The digging of Gazovik-oil guarantees the compliance of the supplied GPSs generators of GOST and the technical regulations on fire safety requirements (123-ФЗ dated July 22, 2008). Equipment is certified.

Fire and technical products Foam generator stationary GPSS is used in stationary fire extinguishing installations of vertical tanks with oil (petroleum products).

Designed as equipment for non-refined, foam generators GPSS 600 and GPSS 2000 can be applied in other industrial sectors within the technical characteristics. The inlet of the generator is located on the flange to which the solution of the stationary fire extinguishing system is connected. Installation and fastening of the generator on the tank is carried out using the mounting flange, on which there is an outlet closed with a lid, which is installed on the hinge. Possible equipment with response flanges.

Climatic execution - W.

The service life of the foam generator GPSS is 10 years.

» TU 112-025-85

» Certificate of conformity C-RU.PB01.B.02124 from 03.08.2012 to 03.08.2017

Device, principle of operation of the foam generator

The sprayer forms a jet of a foaming agent solution in the form of a torch falling on the surface of the cassette. The mesh surface of the cassette contributes to the formation of a plurality of foam bubbles due to air injection through a fence hole at the bottom of the foam generator housing. The foam created in this way is directed into the gas-high space of the reservoir to extinguish the fire.

The inlet hole of the GPSS foam generator is located on the flange 3, to which the solution of the stationary fire extinguishing system is connected 6. Installation and fastening of the foam generator on the tank is carried out using the mounting flange 2, on which there is an outlet closed with a lid 9, installed on a hinge 10.

In front of the sprayer 8 is the valve 11, which is one of the shoulders of a two-levy lever installed in the foam generator housing on hinge 12. The other end of this lever is connected by hinge 13 with a fork 14. Two-dealer lever is connected to the handle 16 of the manual rope 15. Free end fork 14 is installed on the stop 17, fixed in the foam generator housing by one bolt 18. The thrust 19 is connected to its ends to the lid 9 and 20. The cover 9 is attracted to the edge of the outlet of the foam generator, 19 due to the force generated by the rotation of the nut 21 through the hairpins 20. At the same time The nut 21 of the end surface rests into the plug 14. The position of the nut 21 corresponding to the necessary force of the cover of the cover of the cover 9 and the edge of the outlet of the foam generator, is fixed on the heel 20 of the locking nut 22. The heel 20 and rod 19 is connected to the cover of the cover of the cover 9. The second end The limiter 23 is fixed by a bolt to the top of the case.

To protect the foam generator lever system from breakdown, the plug 14 is fixed during the transportation of wire 24.

PS-2 PHOSSEMEL 80 mm is designed to obtain an aqueous solution of the foaming agent used for the formation of foam in medium multiplicity foam generators according to GOST 12962-80 and air-foam trunks according to GOST 1101-93.Tuymes are produced with connecting heads on Tu 29.2-30711025- 12-2001, suction sleeves according to GOST 5398-76. The principle of operation of PS-2 The principle of work of the Penos Eastern is as follows: water under the working pressure goes into nozzle, and from it in the neck of the corps diffuser. In the cavity of the housing adjacent to the nozzle, there is a vacuum, due to which the foaming agent on the sleeve is suited to the diffuser of the case, where it is mixed with water. The resulting solution of the foaming agent is then fed by pressure hoses or pipelines to the average multiplicity of GPS-600 foam generator. To prevent water from entering a container with a foaming agent in the event of a sudden increase in pressure, at the outlet of the penny (for example, when the head of pressure hoses), a check valve is provided. Maintenance of the PS-2 PH-2 Penos Easpler PS-2 is designed to work in the sleeve lines and pipelines with a conditional PO-80 extended passage. For a penny of a pipeline with a length of at least 500 mm, after which it is allowed to install branching. When choosing the length and diameter of the sleeve Lines, as well as during the design of pipelines, should be guided specified in the water flow rate and the largest permissible subsoil. It must also be borne in mind that the total consumption of water from the foaming agent passes on the sleeves. The resistance of the pipelines connecting the phenos mixer with GPS-600 generators should be such that: - the outlet pressure from the penniesmire is not exceeded the limit values; - pressure 0.4 -0.6 MPa before all GPS-600. The limit value of the level of the penny mixer in the container: - 0.3 m below the axis of the penny - the lower level; -2m above the axis of the penny - the top level. Preparation of a penny to work in the laying of sleeve lines and connecting them to a penny mixer and GPS-600 generators. In this case, it is necessary to ensure the direction of the movement of the water, indicated by the arrow on the Penos Easser Case. Periodic verification of the health of the penalty mixer is carried out when it works on water instead of the foaming agent. The water of water should be within 0.30-0.36 l / s. Penos Easterns should be stored in conditions that exclude impacts on them atmospheric precipitation. Transportation of penniesmeters in containers and road transport Without packing in container, subject to damage protection. Foam generators, foaming agents, pencils