CN2471937Y

CN2471937Y - IC engine exhaust gas treating and cyclic using device

Info

Publication number: CN2471937Y
Application number: CN 01239621
Authority: CN
Inventors: 熊金良; 郝营法
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-29
Filing date: 2001-03-29
Publication date: 2002-01-16
Anticipated expiration: 2011-03-29

Abstract

The utility model discloses a cyclic utilization device for processing exhaust from an internal-combustion engine, mainly comprising a converter with a transfer bed for water evaporator, a gas wave buffering separating filter cleaner with palladiumsilver separating membrane and an auxiliary tank; a filtrator outlet, which is communicated with the cylinder of the motor, is arranged on the casing body of the gas wave buffering separating filtrator; a thermocouple and a sensor are arranged on the converter; the sensor is connected with a water supply and thermal sensing switch of the auxiliary tank. The utility model has the advantages of achieving to lowering the discharge capacity of automobiles, being 30% for oil-saving rate, being 200ppm for HC content among exhaust and being 1.5% for CO content through processing and circularly utilizing exhaust gas from the internal combustion engine.

Description

Exhaust gases of internal combustion engines cycle of treatment utilized device

The utility model relates to a kind of machinery, relates in particular to a kind of device to utilizing again after the internal combustion engine locomotive vent gas treatment.

Its main harmful components of tail gas that internal combustion engine locomotive burning back produces are unburned and burning inadequate hydrocarbon HC, oxynitrides NO _x, carbon monoxide CO and be adsorbed on the sulfur dioxide in the carbon soot particles and the polycyclic aromatic hydrocarbons (PAH) of carcinogenesis arranged such as BaP etc., the generation of these tail gas not only causes the consumption of a large amount of energy, the main environment that polluted, jeopardize health, even making crop production reduction, building corrosion and traffic accident increase.For eliminating harmful tail gas, normal both at home and abroad at present three-element catalytic and the oxidation reaction apparatus of adopting utilizes the three-element catalytic reduction to make CO, HC and NO _xBy the platinum catalytic reduction is CO ₂, H ₂O, N ₂But it only uses on the internal-combustion engine that fuel electron sprays, because carbon soot particles and excess of oxygen residual in the diesel engine vent gas can make lambda sensor control insensitive, die the three-element catalytic reaction device generally without diesel engine and big displacement internal combustion machine, and only be applicable to float petrol internal-combustion engine; And the three-element catalytic reaction device also has the following disadvantages: one, three-way catalytic apparatus working life short, to the demanded fuel height, cause lead poisoning easily, effective date is generally 50,000 kilometers, simultaneously, catalytic effect is in progressively decay during 0-5 ten thousand kilometers; Two, conversion efficiency is relevant with air-fuel ratio, and promptly conversion efficiency is for the highest under 14.7: 1 situation for air fuel ratio, and conversion efficiency then obviously reduces during other air fuel ratio.Utilize the oxidation catalysis reaction device in addition, only rely on oxidation reaction to reduce CO and HC, it does not have the elimination effect to carbon soot particles, cause the damage and the inefficacy of catalytic reactor on the contrary,, cause catalyst overheating and sintering in that the exhaust gases of internal combustion engines temperature is too high again because the general non-refractory of catalyzer, the catalyst reaction device surface area is reduced rapidly, the variation of matter just takes place in performance, and catalyst function descends thereupon, does not reach the desirable effect of cleaning of off-gas; Also have the exhaust gas recirculatioon method except that three-element catalytic and oxidation reaction apparatus, adopting the exhaust gas recirculatioon method is a part of tail gas to be back to suction tude enter the firing chamber again and burn, and the exhaust gas recirculatioon of evidence 5% can make NO _x, Cmax from 2630 * 10 ^-6Drop to 1400 * 10 ^-6It is nearly 47% to descend, and along with the exhaust gas recirculation amount increases, velocity of combustion is slowed down, and the combustion stability variation causes engine knocking in I. C. engine thereby produce high wave, and heat load increases.Adopt the water mixing method in addition, be exactly, make NO to engine air admittance pipe or cylinder water spray and employing emulsion fuel _x, generation be suppressed, its shortcoming is that the water mixing meeting brings oil sump ponding dilution machine oil, parts corrosion, freezed in winter etc.In addition, the problem, particularly water spray projector system of water oil separation takes place and with the control of loading, is difficult to be put to practicality in automobile running in emulsion fuel when also having cost and storage.

The purpose of this utility model provides a kind of rational in infrastructure; can carry out purified treatment to internal combustion engine locomotive tail gas; the exhaust gases of internal combustion engines cycle of treatment utilized device that makes its regeneration and be recycled; reach the blowdown flow rate that reduces locomotive; reduction is played the protective action to physical environment, the ecological balance to the pollution of air.

The technical solution of the utility model realizes in the following manner:

A kind of exhaust gases of internal combustion engines cycle of treatment utilized device, it mainly comprises transducer, wave buffering separation filter, paying water tank three parts forms, be provided with the steam transforming bed in its transducer, the import of steam transforming bed is communicated with a pair water tank, transducer one end is the tail gas import, the other end is communicated with wave buffering separation filter, be provided with a sewage draining exit in the transducer bottom, be provided with the tail gas conversion in the wave buffering separation filter, absorb and the filtering separation film, wave buffering separation filter housing is provided with the filter cleaner outlet that is communicated with cylinder, be provided with thermocouple and sensor on transducer, sensor is connected with the hot sense switch of water supply of paying water tank.

The steam transforming bed is that a tubular type air-flow that is positioned at the transducer centre transforms bed.

It is that a coiled air-flow transforms bed that the tubular type air-flow transforms bed.

Transducer is communicated with the import of wave buffering separation filter by a transition tube.

Paying water tank is communicated with by a water pipe and the import of coiled conversion bed.

Coiled transforms the bed outlet near the import of transducer tail gas.

Be provided with control valve in the sewage draining exit.

Tail gas conversion, absorption and filtering separation film can be the alloy diffusion barriers.

The alloy diffusion barrier can be palladium-silver diffusion barrier, nickel chromium triangle diffusion barrier.

Working principle of the present utility model is: the tail gas that produces when internal combustion engine enters transducer through gas exhaust manifold, at this moment, thermosensor work is controlled and is paid a water tank and open the control valve switch and current are entered transform bed, enter and change into the supersaturation water steam from heat steam outlet ejection after the water that transforms bed is drawn a large amount of using waste heat from tail gas, reach the reduction exhaust temperature this moment, increase the humidity purpose, and the carbon soot particles in the tail gas is formed to become residual water from the water droplet as the center in the supersaturation water steam, fall into the sewage draining exit of transducer, discharge by control valve, most of in addition unburnt ingredient HC, CO is through transforming bed circulation step-down, cooling, humidification is after transition tube enters wave buffering separation filter purification filtering, enters cylinder gently and participates in multifuel combustion and improve the motor effective pressure and reach energy-conservation and the environmental protection purpose.

Good effect of the present utility model:

1, energy-conservation: this device utilizes in the exhaust gases of internal combustion engines unburned and burning inadequate HC, CO to carry out circulating combustion through effectively handling, and fuel is fully used, and is 30% through testing its fuel saving ratio.

2, environmental-protection function is remarkable: this device is tail gas processing and utilizing circularly, and carbon soot particles is formed in the supersaturation water steam with from the water droplet as the center, discharged by control valve, and HC content only is 200ppm in testing its blowdown; CO content is 1.5%.

3, the life-span is long: this device adopts alloy new material diffusion barrier, and anti-corrosion capacity is strong, and the intensity height did not lose efficacy, and once dress uses with permanent, need not to upgrade.

Masty problems such as 4, this device can solve because of the tail gas supercharging causes engine knock, and heat load increases, and the Carburetor mixed gas is restive.

The utility model is described in further detail below in conjunction with accompanying drawing:

Accompanying drawing is a theory structure schematic representation of the present utility model.

By accompanying drawing as can be seen, the utility model mainly comprises transducer 6, wave buffering separation filter 12, pays water tank 5 three parts, is provided with coiled air-flow steam transforming bed 7 in its transducer 6, and coiler transforms bed outlet 2 near the import of transducer tail gas; 7 imports of steam transforming bed are communicated with by water pipe 16 with a pair water tank 5, transducer 6 one ends are tail gas imports 1, the other end is communicated with wave buffering separation filter import 10 by a transition tube 9, be provided with a sewage draining exit 8 in transducer 6 bottoms, control valve is arranged in the sewage draining exit, be provided with the tail gas conversion in the wave buffering separation filter 12, the palladium-silver diffusion barrier 11 that absorbs and filter, wave buffering separation filter 12 housings are provided with the filter cleaner outlet 13 that is communicated with cylinder, be provided with thermocouple 3 and sensor 4 on transducer 6, sensor 4 is connected by lead 14 with the hot sense switch 15 of water supply of paying water tank.

Claims

1, a kind of exhaust gases of internal combustion engines cycle of treatment utilized device, it mainly comprises transducer (6), wave buffering separation filter (12), paying water tank (5) three parts forms, it is characterized in that being provided with in the transducer (6) steam transforming bed (7), the import of steam transforming bed is communicated with a pair water tank (5), transducer (6) one ends are tail gas import (1), the other end is communicated with wave buffering separation filter (12), be provided with a sewage draining exit (8) in transducer (6) bottom, be provided with the tail gas conversion in the wave buffering separation filter (12), absorb and filtering separation film (11), wave buffering separation filter (12) housing is provided with the filter cleaner outlet (13) that is communicated with cylinder, be provided with thermocouple (3) and sensor (4) on transducer (6), sensor (4) is connected with the hot sense switch of water supply (15) of paying water tank.

2, exhaust gases of internal combustion engines cycle of treatment utilized device according to claim 1 is characterized in that steam transforming bed (7) is that a tubular type air-flow that is positioned at transducer (6) centre transforms bed.

3, exhaust gases of internal combustion engines cycle of treatment utilized device according to claim 2 is characterized in that it is that a coiled air-flow transforms bed that the tubular type air-flow transforms bed.

4,, it is characterized in that transducer (6) is communicated with wave buffering separation filter import (10) by a transition tube (9) according to claim 1,2,3 described arbitrary exhaust gases of internal combustion engines cycle of treatment utilized devices.

5, exhaust gases of internal combustion engines cycle of treatment utilized device according to claim 4 is characterized in that paying water tank (5) and is communicated with by a water pipe (16) and (7) import of coiled conversion bed.

6, exhaust gases of internal combustion engines cycle of treatment utilized device according to claim 4 is characterized in that coiler transforms the bed outlet near the import of transducer tail gas.

7, exhaust gases of internal combustion engines cycle of treatment utilized device according to claim 6 is characterized in that tail gas conversion, absorption and filtering separation film (11) are the alloy diffusion barriers.

8, exhaust gases of internal combustion engines cycle of treatment utilized device according to claim 7 is characterized in that the alloy diffusion barrier is palladium-silver diffusion barrier, nickel chromium triangle diffusion barrier.