CN213313803U

CN213313803U - Embedded gas-liquid separation structure of pipeline and fuel tank for fuel tank

Info

Publication number: CN213313803U
Application number: CN202020619351.1U
Authority: CN
Inventors: 顾峰; 朱明�; 汪昌盛; 何强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-06-01
Anticipated expiration: 2030-04-23

Abstract

The utility model provides an embedded gas-liquid separation structure of pipeline for fuel tank and fuel tank, including the impeller unit, the impeller unit arranges the vertical baffle plate that upper and lower arc terminal surface and pipeline inner wall laminating, the cross slab is arranged to vertical baffle plate one side, the vertical baffle plate intersects with the cross slab; the left and right arc-shaped end surfaces of the diaphragm plate are attached to the inner wall of the pipeline; two spiral partition plates extend from one side of the vertical partition plate, and the spiral partition plates are respectively positioned in diagonal regions formed by the intersection of the vertical partition plate and the transverse partition plate; the arc-shaped edge of the spiral clapboard is attached to the inner wall of the pipeline; the impeller units are combined in a straight line to form a pipeline embedded type gas-liquid separation structure. This technical scheme can effectively separate gas and liquid, avoids liquid fuel to get into the charcoal jar, and the structure is small and exquisite, uses with the exhaust duct cooperation, does not occupy the inside volume of fuel tank.

Description

Embedded gas-liquid separation structure of pipeline and fuel tank for fuel tank

Technical Field

The utility model relates to a motor vehicle fuel tank field, in particular to embedded gas-liquid separation structure of pipeline and fuel tank for motor vehicle fuel tank.

Background

Typically, motor vehicle fuel tanks require the placement of a plurality of valves from which fuel vapors are vented outwardly through a conduit. For the purposes of saving fuel and protecting the environment, the vapor is discharged into a carbon canister through a pipeline, and the carbon canister is filled with activated carbon with strong adsorption capacity, and the activated carbon can adsorb a large amount of fuel vapor so as to prevent the fuel vapor from being directly discharged into the atmosphere to cause environmental pollution.

However, the fuel vapor discharged from the above valve contains not only the fuel gas but also a part of the liquid fuel, which is not efficiently adsorbed and stored by the activated carbon in the canister, and thus it is necessary to separate and recover the liquid from the fuel vapor from the gas to prevent the liquid from entering the canister.

In order to reduce the risk of liquid entering the canister, it is initially applied to provide a liquid trap between the valve of the fuel tank and the canister, by separating and collecting the liquid fuel from the fuel vapour and then returning the collected liquid fuel to the fuel tank through a line. For example, chinese utility model patent with publication number CN207670186U discloses "a motor vehicle fuel tank with a liquid collector", which is provided with a liquid collector inside the fuel tank, the liquid collector is a hollow box body, connects a breathing tube and an oil filling tube, collects the liquid flowing out of the breathing valve.

However, the liquid trap provided by the prior art scheme is an independent box-shaped container, has larger volume, occupies the volume inside the fuel tank, and is additionally provided with a connecting device for the air inlet and the air outlet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of existence among above problem and the prior art, provide an embedded gas-liquid separation structure of pipeline and fuel cell for fuel cell, can effectively separate gas and liquid, avoid liquid fuel to get into the charcoal canister, the structure is small and exquisite, uses with the cooperation of exhaust duct, does not occupy the inside volume of fuel cell.

In order to achieve the above purpose, the utility model discloses an embedded gas-liquid separation structure of pipeline for fuel tank and fuel tank, including the impeller unit, the impeller unit arranges the vertical baffle plate that upper and lower arc terminal surface and pipeline inner wall laminated, vertical baffle plate one side arranges the cross slab, vertical baffle plate and cross slab intersect; the left and right arc-shaped end surfaces of the diaphragm plate are attached to the inner wall of the pipeline; two spiral partition plates extend from one side of the vertical partition plate, and the spiral partition plates are respectively positioned in diagonal regions formed by the intersection of the vertical partition plate and the transverse partition plate; the arc-shaped edge of the spiral clapboard is attached to the inner wall of the pipeline; the impeller units are combined in a straight line to form a pipeline embedded type gas-liquid separation structure.

The utility model discloses can further set up to: the vertical partition plate and the transverse partition plate are vertically intersected, and the intersection point is positioned on the axis of the exhaust pipeline.

The utility model discloses can further set up to: when the impeller units are combined in a straight line, at least one impeller unit which is not positioned at the head end and the tail end is reversely connected, so that fuel vapor must pass through the lower part of the diaphragm plate of the impeller unit.

The utility model discloses can further set up to: the included angle of spiral baffle horizontal projection and fuel vapor outflow direction is the acute angle, does benefit to liquid along the backflow of spiral baffle.

The utility model discloses can further set up to: the embedded gas-liquid separation structure of the pipeline is positioned at the starting end of the steam outflow direction in the exhaust pipeline, and the exhaust pipeline continuously extends upwards along the steam outflow direction.

The utility model also provides a fuel tank, install in the fuel tank the utility model provides an embedded gas-liquid separation structure of pipeline, the embedded gas-liquid separation structure of pipeline is installed in fuel tank exhaust duct.

Compared with the prior art, the utility model discloses following beneficial effect has been obtained: this technical scheme is embedded in the exhaust duct with the gas-liquid separation structure, constitutes circuitous formula exhaust passage with the exhaust duct inner wall, can effectively carry out gas-liquid separation, hinders liquid fuel and gets into the charcoal canister, does not occupy the fuel tank volume simultaneously.

Drawings

The present invention is further described with reference to the following drawings and examples, which are provided for reference and illustration purposes only and are not intended to be limiting of the present invention.

FIG. 1 is a schematic side view of a preferred embodiment of the present invention;

FIG. 2 is a schematic front view of a preferred embodiment of the present invention;

FIG. 3 is a schematic top view of the preferred embodiment of the present invention;

FIG. 4 is a schematic view of the installation of the preferred embodiment of the present invention;

in the figure: 100. impeller unit, 110 vertical partition, 120 horizontal partition, 130 spiral partition, 200 vapor outflow direction, 300 exhaust pipe.

Detailed Description

[ example 1 ]

As shown in fig. 1 and 2, the fuel tank and the pipeline embedded gas-liquid separation structure for the fuel tank of the present invention include an impeller unit 100, wherein the impeller unit 100 is provided with a vertical partition plate 110 whose upper and lower arc end surfaces are attached to the inner wall of an exhaust pipeline 300, one side of the vertical partition plate 110 is provided with a transverse partition plate 120, and the vertical partition plate 110 intersects with the transverse partition plate 120; the left and right arc end surfaces of the diaphragm 120 are attached to the inner wall of the exhaust pipeline 300; two spiral partition plates 130 extend from one side of the vertical partition plate 110, and the spiral partition plates 130 are respectively located in diagonal regions formed by the intersection of the vertical partition plate 110 and the transverse partition plate 120; the arc-shaped edge of the spiral clapboard 130 is attached to the inner wall of the exhaust pipeline 300; the impeller units 100 are combined in a straight line to form a pipeline embedded gas-liquid separation structure.

[ example 2 ]

As shown in fig. 2, the vertical partition 110 and the horizontal partition 120 intersect perpendicularly, and the intersection point is located on the axis of the exhaust pipe. The exhaust duct 300 is equally divided into an unobstructed portion and a flow-restraining portion, and the flow of liquid is restrained while ensuring a sufficient unobstructed path.

[ example 3 ]

As shown in fig. 1 and 3, when the impeller units 100 are combined in a straight line, at least one impeller unit 100 which is not located at the head end and the tail end is reversely connected, so that fuel vapor must pass through the lower part of the diaphragm 120 of the impeller unit 100, liquid can fall back to the lower part of the exhaust duct 300, and gas passes through the lower part of the diaphragm 120 and then is continuously discharged upwards.

[ example 4 ]

As shown in fig. 3, an included angle between the horizontal projection of the spiral partition 130 and the fuel vapor outflow direction 200 is an acute angle, which is beneficial for the liquid to flow back along the spiral partition 130, so that the liquid is not easy to accumulate inside the present embodiment.

[ example 5 ]

As shown in fig. 3 and 4, the pipe inline gas-liquid separation structure is located at the beginning of the vapor outflow direction 200 in the exhaust pipe 300, and the exhaust pipe 300 continuously extends upward along the vapor outflow direction 200.

The utility model discloses can also select two or more and combine with embodiment 1 to form new implementation mode with the technical feature described in above embodiment 2-5.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention. In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. A pipeline embedded gas-liquid separation structure for a fuel tank is characterized by comprising an impeller unit, wherein the impeller unit is provided with a vertical partition plate, the upper and lower arc-shaped end surfaces of the vertical partition plate are attached to the inner wall of a pipeline, one side of the vertical partition plate is provided with a transverse partition plate, and the vertical partition plate is intersected with the transverse partition plate; the left and right arc-shaped end surfaces of the diaphragm plate are attached to the inner wall of the pipeline; two spiral partition plates extend from one side of the vertical partition plate, and the spiral partition plates are respectively positioned in diagonal regions formed by the intersection of the vertical partition plate and the transverse partition plate; the arc-shaped edge of the spiral clapboard is attached to the inner wall of the pipeline; the impeller units are combined in a straight line to form a pipeline embedded type gas-liquid separation structure.

2. The in-line gas-liquid separation structure for a fuel tank of claim 1, wherein the vertical partition and the horizontal partition intersect perpendicularly, and the intersection point is located on an axial line of the vent line.

3. The in-line gas-liquid separation structure for a fuel tank according to claim 1, wherein at least one of the impeller units not located at the head and tail ends is reversely connected when the plurality of impeller units are combined in a straight line.

4. The in-line gas-liquid separation structure for a fuel tank according to claim 1, wherein an angle between a horizontal projection of the spiral partition plate and an outflow direction of fuel vapor is an acute angle.

5. The in-line gas-liquid separation structure for a fuel tank according to claim 4, wherein the in-line gas-liquid separation structure is located at a starting end of a vapor outflow direction in a vent pipe that continuously extends upward along the vapor outflow direction.

6. A fuel tank, characterized in that the in-line gas-liquid separation structure for a fuel tank according to any one of claims 1 to 5 is installed in a fuel tank vent line.