RU2657692C1 - Spark arrestor, flame arrestor, condenser with nozzles for regeneration (ipk 1.1) - Google Patents

Abstract

FIELD: ventilation.

SUBSTANCE: invention relates to equipment intended to prevent propagation of a fire in industrial communications, trapping solvent vapors in ventilation systems, trapping solid aerosol particles in ventilation systems in paint workshops of metallurgical, refractory, construction, machine building, woodworking, oil producing, oil refining and other industries, as well as in the ventilation emissions cleaning environmental-friendly processes. Sparks, solvent vapors, solid aerosol particles trapping and flame localization in ventilation systems device, including metal housing with the gas-and-vapor flow inlet and outlet side branch pipes, alternating sections of filled with coolant vertical and coiled metal tubes, tube connected to the refrigerant supply sections, metal container at the device upper part with a waste coolant disposal tube, horizontally installed fine mesh grating in the housing lower part for the solid particles trapping, five nozzles on each side wall and four nozzles on the top for the solvent spraying and the tubes cleaning of the colorful aerosol, a tube for the solvent vapors condensate removing.

EFFECT: device allows to carry out combined protection against possible sources of ignition and combustion products, increase the device service life by cleaning the tubes of the colorful aerosol, reduce the device aerodynamic drag.

1 cl, 1 dwg

Description

The invention relates to techniques for preventing the spread of fire in industrial communications, trapping solvent vapors in ventilation systems, trapping solid aerosol particles in ventilation systems of paint and varnish workshops of the metallurgical, refractory, construction, engineering, woodworking, oil producing, oil refining and other industries, as well as in environmental processes for cleaning ventilation emissions.

The closest in technical essence and the achieved effect is a spark arrester, flame arrester, capacitor IPK 1.0 [Patent for the invention No. 2597535. Spark arrester, flame arrester, capacitor (IPK1.0) / L.A. Morozov, E.V. Romanyuk, D.V. Kargashilov. - No. 20144150378/12; declared 12/11/2014; publ. 07/10/2016. - Bull. Number 25. - 2 p.], Which is a device for capturing sparks, solvent vapors, solid aerosol particles and flame localization in ventilation systems, including a metal casing with side inlets and outlets for gas and air flow, alternating sections of vertical and coil metal tubes filled with refrigerant, a tube connected to the refrigerant supply sections, a metal container in the upper part of the apparatus with a spent refrigerant removal tube, horizontally installed shallow a mesh grate in the lower part of the housing for trapping solid particles and a tube for removing condensate from solvent vapors.

The disadvantage of this design of the device is the gradual adhesion of the colorful aerosol to the tubes, which leads to clogging of the device and increase aerodynamic drag.

An object of the invention is to reduce the resistance in the device, increase its service life, increase efficiency by creating a spark arrester, a flame arrester and a capacitor with a system for cleaning the outer walls of vertical and coil tubes from deposits of a colorful aerosol.

The technical task of the invention is achieved by the fact that in a device including a metal casing with lateral inlet and outlet ports of the gas flow, alternating sections of vertical and serpentine metal tubes filled with refrigerant, a tube connected to the sections for supplying refrigerant, a metal container in the upper part of the apparatus with a tube for removing spent refrigerant, a horizontally installed fine-mesh grate in the lower part of the housing for trapping solid particles and a pipe for removal and the condensate of solvent vapors, it is new that five nozzles are installed in the side walls of the device body and four nozzles in the upper wall for supplying and spraying the solvent.

The technical result of the invention is to increase the efficiency and quality of cleaning exhaust vapors, protection against sparks and flame propagation, ensuring a long service life, duration of operation of the flame arrester, low aerodynamic resistance to flow, compactness of the apparatus, ease of operation.

The drawing shows a diagram and a section of the device IPC 1.1.

IPK 1.1 consists of a rectangular housing 1, inlet pipe 2 and output 3, a system of sections of vertical tubes 4, coil tubes 5, tubes for supplying refrigerant 6, fine mesh wire 9, condensate drain tubes 10, refrigerant discharge tubes 7, tank connection capacities 11 nozzles for spraying solvent 8.

IPK 1.1 works as follows.

The gas stream through the inlet pipe 2 enters the system of sections of the vertical and coil tubes 4-5, where the solvent vapor is cooled by refrigerant in the pipes, condenses and flows through the fine-mesh metal mesh 9 into the condensate drain pipe 10. The cleaned gas-air stream through the outlet pipe 3 leaves the device and continues to move through the ventilation system.

Cooling is ensured by the refrigerant circulating in the tubes 4, 5. Sparks and flame along with the gas stream through the inlet 2 enter the system of sections of the vertical 4 and coil 5 tubes, due to cooling and collision with the tubes, they are extinguished and fall down, delayed on a fine-mesh metal mesh 9. The condensate of the solvent passes through the metal mesh 9 and is removed through pipe 10.

When the device is clogged, a solvent is supplied to the nozzles 8 under high pressure, which dissolves the aerosol residue on the tubes and flows down, from where it is then removed through the pipe 10.

Using the proposed IPC 1.1 allows you to:

- carry out combined protection against possible sources of ignition and combustion products;

- increase the service life of the device by cleaning the tubes from colorful aerosol;

- reduce the aerodynamic drag of the device;

- reduce energy costs;

- increase the efficiency of spark capture;

- increase the efficiency of flame arresters;

- increase the capture of aerosol particles;

- Condensate and drain solvent from the system.

Claims (1)

A device for capturing sparks, solvent vapors, solid aerosol particles and flame localization in ventilation systems, including a metal casing with side inlets and outlets for gas and steam flow, alternating sections of vertical and serpentine metal tubes filled with refrigerant, a tube connected to sections for supplying refrigerant, a metal container in the upper part of the apparatus with a tube for removing spent refrigerant, a horizontally installed fine-mesh grate in the lower part of a housing for collecting particulate matter, five nozzles on each side wall and four nozzles on the top for spraying the solvent and cleaning the tubes from the colorful aerosol, a tube for removing condensate from solvent vapors.

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