CN201696173U - Vehicle-mounted oil vapor recovery device - Google Patents

Abstract

The utility model relates to an oil vapor recovery device used on a gasoline car and discloses a vehicle-mounted oil vapor recovery device. The vehicle-mounted oil vapor recovery device comprises a breathing pipeline A (7), a breathing pipeline B (9), a sphere (5) and a travelling channel (8) for the sphere (5), wherein the travelling channel (8) is vertically arranged above an oil outlet of an oil tank (6), the sphere (5) is positioned in the travelling channel (8), the diameter of the sphere (5) is equal to the inner diameter of the travelling channel (8), and the breathing pipeline A (7) and the breathing pipeline B (9) are respectively positioned on two sides of the travelling channel (8). The vehicle-mounted oil vapor recovery device has the advantages of simple structure, low maintenance cost, good stability of the recovered oil vapor and high oil vapor recovery ratio.

Description

A kind of vehicle-mounted device for recovering oil and gas

Technical field

The utility model relates to the device for recovering oil and gas that uses on a kind of gasoline car, and this device can effectively reduce the discharge vaporization problem of the interior fuel oil of discharge vaporization, particularly refueling process intermediate fuel oil case of fuel oil in the fuel tank.

Background technique

Along with the continuous progress of automobile industry, the recoverable amount of automobile is in quick growth, and the consumption of gasoline is also in rapid increase.Because gasoline is a kind of light-end products, therefore be easy to volatilization, the gasoline vapour that volatilizes from oil-fired system, the waste of gasoline and the decline of gasoline quality have been caused, brought great economic loss, simultaneously also can pollutant atmosphere, in the gas station, the fuel vapor that the gasoline discharge vaporization produces also has great potential safety hazard.In order to solve the evaporative emission problem of fuel oil in the fuel tank, at home, most of automobile all is equipped with active carbon pot type fuel evaporation pollution control device, and its deficiency is to control what of volume read-out, can not control the discharging of the gasoline vapour in the refueling process simultaneously.In order to solve the discharge vaporization of fuel vapor in the refueling process intermediate fuel oil case, domestic minority gas station is equipped with gas station's device for recovering oil and gas, this device can effectively reduce the fuel evaporation discharging in the refueling process, but mounting cost and maintenance cost are too high, and vehicle-mounted device for recovering oil and gas is the improvement on original activated carbon canister fuel evaporation pollution control system, mounting cost is very low, substantially do not need maintenance expense, can effectively control the fuel evaporation discharging in the refueling process, the utility model is exactly a kind of novel vehicle-mounted device for recovering oil and gas.

At present, gasoline car device for recovering oil and gas commonly used both at home and abroad mainly contains two classes, a kind of active carbon pot type fuel evaporation pollution control device that is mounted on the automobile, this device utilizes active carbon to adsorb the fuel vapor that oil-fired system produces, oil gas enters the cylinder combustion burning in the desorption charcoal jar in engine operation, thereby realizes the recycling of fuel vapor; Vehicle-mounted device for recovering oil and gas improves active carbon pot type fuel evaporation pollution control device and designs; Another kind is gas station's device for recovering oil and gas, and this device can be divided into one-level gas recovery system for oil and secondary gas recovery system for oil again.The one-level gas recovery system for oil be at the petroleum transported car when giving the gas station emptying, escaping vapor in the control jar and designing.Adopt the sealed mode emptying when basic principle is emptying, reduce oil gas and loose, with in the defeated again oil return tank car of escape oil gas, take back oil depot and handle through modes such as condensation, absorption again being recovered to oil gas in the car with conduit to excessive.The secondary gas recovery system for oil comprises oil gas collection and two parts of oil gas reprocessing, oil gas collection: as a rubber sleeve is housed on nozzle, oilling machine refuels simultaneously to automotive oil tank, gasoline vapour in the fuel tank is recovered in gas station's oil storage tank, then the oil gas that reclaims is carried oil return storehouse oil gas recycle bin by under ground piping, then these oil gas are become fluid oil or high-concentration oil vapor by " reprocessing ".

Summary of the invention

The utility model at be that the oil gas of gasoline car fuel tank reclaims.The topmost problem that the active carbon pot type fuel evaporation pollution control device of dress usefulness exists on present most of automobile is that oil filler does not seal, thus the discharge vaporization problem in can not the Control of Automobile refueling process.

The utility model is to improve on original activated carbon canister fuel evaporation pollution control device, increased by gas pipeline, spheroid, a kind of structure that has one-way valve and Tipping valve function simultaneously that the moving conduit of spheroid is formed, the utility model comprises two gas pipelines, spheroid, the moving conduit of spheroid, moving conduit vertically is located on the fuel tank oil outlet, the internal diameter of moving conduit is greater than the bore of fuel tank oil outlet, spheroid is positioned at moving conduit, the diameter of spheroid is identical with the internal diameter of moving conduit, spheroid is solid, make by elastic material, article two, gas pipeline is positioned at the both sides of moving conduit, and gas pipeline communicates from beginning to end with moving conduit.

Also original oil filling pipe is redesigned simultaneously, oil filling pipe after the improvement by refuel to be responsible for, two sections add oil inlet pipe and form, the person in charge that refuels is two sections at the lower end bifurcated and adds oil inlet pipe, wherein one adds oil inlet pipe and is positioned at the top that another root adds oil inlet pipe, and the below adds the diameter of oil inlet pipe and diameter ratio that the top adds oil inlet pipe is 1.9-2.1.

The beneficial effects of the utility model are that simple in structure, maintenance cost is low; Reclaim the good stability of oil gas, the oil gas recovery rate height, and can effectively reduce to refuel and discharge; Can control the oiling total amount.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified.

The structural representation of Fig. 1 device when not refueling.

Fig. 2 is the structural representation of refueling process device.

The structural representation of device when Fig. 3 overturns for automobile.

Among the figure, 1. refuel and be responsible for; 2. add oil inlet pipe A; 3. add oil inlet pipe B; 4. oil filling pipe covers; 5. spheroid; 6. fuel tank; 7. gas pipeline A; 8. spheroid moving conduit; 9. gas pipeline B; 11. gas pipeline C; 12. gas pipeline D; 13. gas pipeline; 15. gas pipeline; 10. deaerator; 14. desorption valve; 16. empty filter; 17. charcoal canister; 18. one-way valve; 19. nozzle;

Embodiment

In conjunction with the accompanying drawings, below the utility model is further specified.

When not refueling, spheroid 5 is positioned at the position of being located at the fuel tank oil outlet, gas pipeline A7, gas pipeline B9, and spheroid motor path 8 is sealed by spheroid 5, all can not ventilate; When opening 4 oilings of oil filling pipe lid, carrying out along with refueling process, vapor tension in the fuel tank raises gradually, when the vapour tension of liquid level top in the fuel tank reaches certain certain value, spheroid 5 is squeezed to be reached in the pipeline 8, concrete lifting position is decided on the size of tank pressure, gas pipeline A7, gas pipeline B9 can ventilate, pipeline 8 is the spheroid moving conduit, fuel vapor in the fuel tank is through gas pipeline A7, gas pipeline B9, deaerator 10, gas pipeline C11, gas pipeline D12 enters canister 17 and is adsorbed, and cleaned air passes is discharged in the atmosphere through breathing pipe 15; In the time of engine operation, the fuel vapor that adsorbs by 14 pairs of canisters of solenoid valve carries out desorption, thereby realizes recycling; When beating oil filling pipe lid 4 and refuel, nozzle 19 stretches into to refuel is responsible for 1, the gasoline of ejection is at first by adding oil inlet pipe A2, because refuel being responsible for 1 sharply diminishes suddenly at the diameter that adds oil inlet pipe A2 place, thereby make the gasoline of nozzle ejection be obstructed adding oil inlet pipe A2 place, gasoline will spill into and add oil inlet pipe B3 from adding oil inlet pipe A2, make that adding oil inlet pipe B3 place also has gasoline to flow through, the lower end that adds oil inlet pipe B3 is near the fuel tank bottom, will soon so just be made oil gas not discharge, and add oil inlet pipe A2 by liquid seal because the liquid resistance has also been filled up by gasoline from adding oil inlet pipe B3, thereby the realization fluid-tight prevents the discharging of filler neck fuel vapor; Like this, the fuel vapor that produces in the fuel tank just can only squeeze the body 5 of kicking off and enter canister and be adsorbed through gas pipeline A7, gas pipeline B9, gas pipeline C11, deaerator 10, gas pipeline D12, and finally through gas pipeline 13, desorption valve 14 is gone into the engine air in-cylinder combustion by desorption, thereby realizes the recycling of oil gas.

By spheroid 5, gas pipeline A7, gas pipeline B9, spheroid motion pipeline 8 is formed has non-return valve function, promptly has only when the vapour tension in the fuel tank greater than certain value the time, and spheroid 5 just can be held by crowded, and gas pipeline just can be opened and ventilate; The function that also has Tipping valve simultaneously, spheroid 5 enters gas pipeline A7 through spheroid motion pipeline 8 under action of gravity when fuel tank tilts even be inverted, the intersection of gas pipeline B9 and spheroid moving conduit 8, as specification position shown in Figure 3, seal whole gas pipeline, thereby stop fuel oil to enter charcoal canister, when automobile recovers normal state, spheroid 5 is got back to initial position again under action of gravity, because this structure is an one-way passage, therefore on oil filling pipe lid 4, added individual one-way valve 18, its effect is to cross when low when tank pressure, replenishes atmosphere, trim tank external and internal pressure from the external world by oil filling pipe lid 4.

Claims (3)

1. vehicle-mounted device for recovering oil and gas, it is characterized in that, comprise gas pipeline A (7), gas pipeline B (9), spheroid (5), the moving conduit (8) of spheroid (5), moving conduit (8) vertically is located on fuel tank (6) oil outlet, the internal diameter of moving conduit (8) is greater than the bore of fuel tank (6) oil outlet, described spheroid (5) is positioned at moving conduit (8), the diameter of spheroid (5) is identical with the internal diameter of moving conduit (8), described gas pipeline A (7), gas pipeline B (9) is positioned at the both sides of moving conduit (8), gas pipeline A (7), gas pipeline B (9) communicates with moving conduit (8) head and the tail.

2. a kind of vehicle-mounted device for recovering oil and gas according to claim 1, it is characterized in that, also comprise filling conduit, described filling conduit comprises the oiling person in charge (1), adds oil inlet pipe A (2), adds oil inlet pipe B (3), be responsible for (1) lower end bifurcated for adding oil inlet pipe A (2) and adding oil inlet pipe B (3) in described oiling, add oil inlet pipe A (2) and be positioned at the top that adds oil inlet pipe B (3)

3. a kind of vehicle-mounted device for recovering oil and gas according to claim 2 is characterized in that, the described diameter that adds oil inlet pipe B (3) is 1.9-2.1 with the diameter ratio that adds oil inlet pipe A (2).

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