CN215609960U

CN215609960U - Gas-water separation device and fuel cell automobile with same

Info

Publication number: CN215609960U
Application number: CN202120638254.1U
Authority: CN
Inventors: 董小杨; 刘焕东
Original assignee: Weichai Power Co Ltd; Weichai New Energy Technology Co Ltd
Current assignee: Weichai Power Co Ltd; Weichai New Energy Technology Co Ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2022-01-25
Anticipated expiration: 2031-03-29

Abstract

The utility model relates to a gas-water separation device and a fuel cell automobile with the same, and belongs to the field of fuel cell automobiles, wherein the gas-water separation device comprises a gas-water separator main body and a silencing porous plate, the gas-water separator main body comprises a cylindrical barrel and a cyclone barrel which are coaxially arranged, the top end of the cylindrical barrel is a closed end, the bottom end of the cylindrical barrel is an open end, the closed end is provided with an exhaust port, and meanwhile, the side wall of the cylindrical barrel is also provided with an air inlet; the cyclone cylinder is arranged in an inverted cone shape, the large opening end of the cyclone cylinder is fixedly connected with the open end, and the small opening end of the cyclone cylinder is a water outlet; the silencing porous plate is coaxially arranged inside the cylindrical barrel and fixedly connected with the inner side wall of the cylindrical barrel. The utility model has the effects of solving the gas-water separation of tail exhaust and integrating noise reduction.

Description

Gas-water separation device and fuel cell automobile with same

Technical Field

The utility model relates to the technical field of fuel cell automobiles, in particular to a gas-water separation device and a fuel cell automobile with the same.

Background

This section provides background information related to the present disclosure only and is not necessarily prior art.

Most of the existing domestic hydrogen fuel cell buses generally adopt a fuel cell overhead scheme or a fuel cell rear cabin arrangement scheme. The fuel cell top-mounted structure has the advantages of compact structure, reduction of pipelines between the fuel cell and the radiator, large space of the residual rear cabin and the like. If the scheme of fuel cell top-mounted is adopted, because the reaction product of the fuel cell stack is water, high-pressure water vapor is discharged through the tail exhaust pipe, a device with a water diversion function needs to be installed at the front end of the tail exhaust pipe, otherwise, a large amount of water is sprayed out through the tail exhaust pipe, and exhaust is not facilitated. The fuel cell rear cabin arrangement scheme generally has a certain water diversion function with a matched impedance combination type silencer, but a device special for gas-water separation is not provided.

And current gas-water separation device is all to separate hydrogen and moisture, does not involve the gas-water separation of tail row, also does not have integrated amortization function simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to at least solve the problems of gas-water separation and integrated silencing of tail gas. The purpose is realized by the following technical scheme:

the utility model provides a gas-water separation device, which comprises a gas-water separator main body and a silencing porous plate, wherein the gas-water separator main body comprises a cylindrical barrel and a cyclone barrel which are coaxially arranged, the top end of the cylindrical barrel is a closed end, the bottom end of the cylindrical barrel is an open end, the closed end is provided with an exhaust port, and meanwhile, the side wall of the cylindrical barrel is also provided with an air inlet; the cyclone cylinder is arranged in an inverted cone shape, the large opening end of the cyclone cylinder is fixedly connected with the open end, and the small opening end of the cyclone cylinder is a water outlet;

the silencing porous plate is coaxially arranged inside the cylindrical barrel and fixedly connected with the inner side wall of the cylindrical barrel.

According to the gas-water separation device, the gas-water mixture enters the cylindrical barrel through the air inlet of the cylindrical barrel in a tangential direction, the mixed air flow is changed from linear motion to rotary motion, liquid drops in the mixed air are thrown to the wall surface of the gas-water separator body due to large mass under the action of centrifugal force, and then flow down to the water outlet along the inner wall of the inverted cone-shaped cyclone barrel under the action of gravity. Meanwhile, the gas in the mixed gas continuously rotates downwards along the inverted cone-shaped cyclone cylinder, and when the mixed gas moves to a position below the cyclone cylinder, the gas upwards performs internal spiral motion along the direction of the central line and enters the cylindrical cylinder. At the moment, the air flow is subjected to noise elimination treatment through the noise elimination porous plate, meanwhile, residual liquid drops collide on the plate and are condensed into water drops which flow down along the inner wall of the cylindrical barrel, and the relatively dry tail gas is discharged to the atmosphere through the exhaust port under the action of low specific gravity and pressure. Can effectively separate the moisture in the tail exhaust gas mixture, separation efficiency is high, and the device has water diversion and noise elimination function concurrently simultaneously, and the structure is retrencied, and the integrated level is high.

In addition, the gas-water separation device according to the present invention may further have the following additional technical features:

in some embodiments of the present invention, the air inlet is connected with an air inlet pipe, and a pipe orifice at one end of the air inlet pipe is fixedly connected with the air inlet; the exhaust port is connected with an exhaust pipe, an orifice at one end of the exhaust pipe is fixedly connected with the exhaust port, and an orifice at the other end of the exhaust pipe is provided with an elbow.

In some embodiments of the present invention, a mounting bracket is fixedly disposed on an outer side wall of the cylindrical barrel, and a fixing threaded hole for cooperating with a bolt is formed in the mounting bracket.

In some embodiments of the utility model, the outer side wall of the cyclone cylinder is further provided with an overflow pipe communicated with the interior of the cyclone cylinder, and the overflow pipe is vertically and fixedly arranged on the outer side wall of the cyclone cylinder.

In some embodiments of the present invention, the number of the silencing porous plates is multiple, and the multiple silencing porous plates are arranged at intervals along the axial direction of the cylindrical barrel.

In some embodiments of the utility model, the closed end of the cylinder is further provided with a hydrogen concentration sensor, and the hydrogen concentration sensor is connected with a controller through a wire.

In some embodiments of the present invention, the water outlet is connected to a water discharge pipe, one end of the water discharge pipe, which is away from the water outlet, is provided with a flow sensor, an inner wall of the water discharge pipe is wound with a heating wire, and both the flow sensor and the heating wire are connected to a controller through wires.

In some embodiments of the utility model, the three-way pipe is connected with the overflow pipe, the three-way pipe is connected with the drain pipe, and the three-way pipe is connected with the drain assembly rubber pipe.

In some embodiments of the present invention, the connection manner of the mounting bracket and the outer wall of the cylindrical barrel, the connection manner of the drain pipe and the drain opening, the connection manner of the air inlet pipe and the air inlet, and the connection manner of the exhaust pipe and the exhaust opening are all welded.

In another aspect of the present invention, a fuel cell vehicle is provided, which includes a fuel cell engine, a controller and the gas-water separation device.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

FIG. 1 is a schematic view of the overall structure of a gas-water separation apparatus according to the present application;

FIG. 2 is another schematic structural diagram of the gas-water separation apparatus of the present application;

FIG. 3 is a schematic view of the construction of the muffling perforated plate shown in FIG. 2;

fig. 4 is an enlarged schematic view of a portion a of fig. 1.

Reference numerals:

100. a gas-water separator body; 101. a cylindrical barrel; 1011. an air inlet; 1012. an exhaust port; 1013. an air inlet pipe; 1014. an exhaust pipe; 10141. bending the pipe; 102. a cyclone cylinder; 1021. a water outlet; 1022. a drain pipe; 103. a silencing porous plate; 200. mounting a bracket; 201. fixing the threaded hole; 300. an overflow pipe; 400. a hydrogen concentration sensor; 500. a flow sensor; 600. an electric heating wire; 700. and a power supply wire of the electric heating wire.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

With reference to fig. 1 and 2, according to an embodiment of the present invention, there is provided a gas-water separation device, including a gas-water separator main body 100 and a silencing porous plate 103, wherein the gas-water separator main body 100 includes a cylindrical barrel 101 and a cyclone barrel 102 which are coaxially arranged. The equal cavity of a cylinder 101 and a whirl section of thick bamboo 102 sets up, and the top of a cylinder 101 is the blind end, and the bottom of a cylinder 101 is the opening end, and gas vent 1012 has been seted up to the blind end, has still seted up air inlet 1011 on the lateral wall of a cylinder 101 simultaneously, and air inlet 1011 is close to the opening end and opens on the lateral wall of a cylinder 101.

The cyclone cylinder 102 is arranged in an inverted cone shape, one end of the cyclone cylinder 102 is a large opening end, and the other end is a small opening end. The large opening end of the cyclone cylinder 102 is fixedly connected with the open end, and the small opening end of the cyclone cylinder 102 is a water outlet 1021.

With reference to fig. 2 and 3, the silencing porous plate 103 is coaxially arranged inside the cylindrical barrel 101 in a disc shape, and a plurality of silencing porous plates are arranged inside the cylindrical barrel 101 at intervals of 30-50 mm along the axial direction of the cylindrical barrel 101. Through holes are uniformly formed in the surface of the silencing porous plate 103 at intervals, the edge of the silencing porous plate 103 is fixedly connected with the inner side wall of the cylindrical barrel 101, and a silencing cavity is formed between the edge of the silencing porous plate 103 and the inner cavity of the cylindrical barrel 101.

Meanwhile, the air inlet 1011 is connected with an air inlet pipe 1013, and a pipe orifice at one end of the air inlet pipe 1013 is fixedly connected with the air inlet 1011; the exhaust port 1012 is connected with an exhaust pipe 1014, and a pipe orifice at one end of the exhaust pipe 1014 is fixedly connected with the exhaust port 1012. Furthermore, an elbow 10141 is further arranged at the other end of the exhaust pipe 1014, so that liquid backflow and damage to the gas-water separator caused by falling of impurities at the pipe orifice of the exhaust pipe 1014 are prevented.

When the fuel cell is operated, the reacted water-gas mixture is led to the gas-water separator through the exhaust outlet of the fuel cell, and tangentially enters the silencing cavity from the air inlet 1011 of the cylindrical barrel 101, the mixed gas flow is changed into rotary motion in the cyclone barrel 102 from linear motion, and liquid drops in the mixed gas are thrown to the wall surface due to large mass under the action of centrifugal force, and flow down to the water outlet 1021 along the inner wall of the conical cyclone barrel 102 under the action of gravity. The gas in the mixed gas continuously rotates downwards along the inner cavity of the conical cyclone cylinder 102, the rotating radius in the cone is smaller and smaller due to the principle that the rotating distance is not changed, the tangential speed is larger and larger, and when the gas moves to a position below the inverted conical cyclone cylinder 102, the gas makes an internal spiral motion upwards along the direction of a central line and enters the silencing cavity.

At the moment, the airflow spirally upwards entering the silencing cavity passes through the plurality of silencing porous plates 103, the silencing porous plates 103 are utilized to play a role in silencing gas, meanwhile, under the action of centrifugal force, residual liquid drops collide on the silencing porous plates 103 and are condensed into water drops and flow down along the inner wall of the cylindrical barrel 101, and relatively dry tail gas is discharged to the atmosphere through the exhaust port 1012 and the exhaust pipe 1014 under the action of low specific gravity and pressure.

The device is through using toper whirl section of thick bamboo 102 structure, utilizes the centrifugal force separation liquid drop that the tangential admitted air, recycles "rotation distance" invariant principle, lets divide water back gas along central line direction spiral upwards, can effectively separate the moisture in the tail row gas mixture, and the holistic upper and lower structural design of the device simultaneously collects noise elimination and gas-water separation function integratively, and the structure is retrencied, and the integrated level is high, and top noise cancelling structure has certain water separation function concurrently, makes water separation efficiency higher.

As shown in fig. 1, in some embodiments of the present invention, a mounting bracket 200 is fixedly disposed on an outer side wall of the cylindrical barrel 101, the mounting bracket 200 is disposed in a flat plate shape, and a fixing threaded hole 201 for engaging with a bolt is formed on a surface of the mounting bracket 200. During actual installation, a fuel cell and a tail exhaust pipeline are installed on the whole vehicle, a gas-water separator is installed at the rear end of a fuel cell exhaust system, and the gas-water separator is fixed on a whole vehicle bracket by penetrating four bolts through fixing threaded holes 201 in a mounting bracket 200. The separate design of the mounting bracket 200 is suitable for the top-on-fuel cell exhaust feature.

As shown in fig. 1, in some embodiments of the present invention, an overflow pipe 300 is further disposed on an outer sidewall of the cyclone cylinder 102 and is communicated with the interior of the cyclone cylinder 102, and the overflow pipe 300 is located below the gas inlet 1011 and is vertically fixed on the outer sidewall of the cyclone cylinder 102. When the moisture in the tail exhaust gas is excessive, the water outlet 1021 of the cyclone cylinder 102 can not discharge the moisture stored in the cyclone cylinder 102 in time, and at the moment, the excessive moisture in the cyclone cylinder 102 is discharged through the overflow pipe 300. The setting of overflow pipe 300 can avoid ponding to reach the air inlet 1011 position, and then influences gas water separator's normal work.

As shown in fig. 1, in some embodiments of the present invention, the closed end of the cylindrical barrel 101 is further provided with a hydrogen concentration sensor 400, and the hydrogen concentration sensor 400 is connected to the controller through an electric wire. If hydrogen leakage occurs in the fuel cell and the concentration of hydrogen in the tail exhaust gas exceeds the standard, the separated tail gas is discharged from an exhaust pipe 1014 of the gas-water separator, at the moment, the hydrogen concentration sensor 400 measures the concentration value of hydrogen in the exhaust gas and sends an alarm signal to the automobile controller, and the automobile controller reports a corresponding fault and sends an emergency stop instruction to the fuel cell.

Referring to fig. 1 and 4, in some embodiments of the present invention, a drain pipe 1022 is connected to the drain opening 1021, and an end of the drain pipe 1022 far from the drain opening 1021 is provided with a flow sensor 500. The heating wire 600 is wound around the inner wall of the drain pipe 1022, and the flow sensor 500 and the heating wire 600 are connected to the controller through wires. When the external environment temperature is low, water in the drain pipe 1022 may be frozen, and drainage is not smooth, so the heating wire 600 is wound on the drain pipe 1022, after the fuel cell operates for a period of time, the flow sensor 500 does not monitor that water flows through the drain pipe 1022, at this moment, the flow sensor 500 sends a signal to the automobile controller, the automobile controller controls the heating wire 700 to supply power to heat the heating wire 600, the drain pipe 1022 is heated, the drainage performance of the device is guaranteed, and the device can work in a low-temperature environment in winter.

In some embodiments of the present invention, a drainage assembly hose and a three-way pipe are further included, the overflow pipe 300 is communicated with the first pipe orifice of the three-way pipe through the hose, the drainage pipe 1022 is communicated with the second pipe orifice of the three-way pipe through the hose, and the drainage assembly hose is communicated with the third pipe orifice of the three-way pipe. The water discharged from the water discharge pipe 1022 and the overflow pipe 300 is collected into the water discharge assembly rubber pipe through the three-way pipe and discharged from the water discharge assembly rubber pipe, so that the water discharged from the device can be prevented from leaking to other areas, a short circuit of a line can be avoided, and the safety of the working environment of the device can be ensured.

Further, in order to ensure the air tightness of the entire structure of the gas-water separation apparatus, the fixing bracket is welded to the outer wall of the cylindrical barrel 101, the drain pipe 1022 is welded to the drain port 1021, the intake pipe 1013 is welded to the intake port 1011, and the exhaust pipe 1014 is welded to the exhaust port 1012.

In another aspect of the present invention, a fuel cell vehicle is provided that includes a fuel cell engine, a controller, and a gas-water separation device. The fuel cell engine is used for providing power for the automobile; the controller is used for collecting signals collected by the hydrogen concentration sensor 400 and the flow sensor 500 and controlling the work of the engine and the heating wire 600; the gas-water separation device is used for separating moisture in the tail exhaust mixed gas and eliminating noise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a gas-water separation device which characterized in that: the gas-water separator comprises a gas-water separator body and a silencing porous plate, wherein the gas-water separator body comprises a cylindrical barrel and a cyclone barrel which are coaxially arranged, the top end of the cylindrical barrel is a closed end, the bottom end of the cylindrical barrel is an open end, the closed end is provided with an exhaust port, and meanwhile, the side wall of the cylindrical barrel is also provided with an air inlet; the cyclone cylinder is arranged in an inverted cone shape, the large opening end of the cyclone cylinder is fixedly connected with the open end, and the small opening end of the cyclone cylinder is a water outlet;

2. The gas-water separation device of claim 1, characterized in that: the air inlet is connected with an air inlet pipe, and a pipe orifice at one end of the air inlet pipe is fixedly connected with the air inlet; the exhaust port is connected with an exhaust pipe, an orifice at one end of the exhaust pipe is fixedly connected with the exhaust port, and an orifice at the other end of the exhaust pipe is provided with an elbow.

3. The gas-water separation device of claim 1, characterized in that: and the outer side wall of the cylindrical barrel is fixedly provided with a mounting bracket, and the mounting bracket is provided with a fixing threaded hole matched with the bolt.

4. The gas-water separation device of claim 1, characterized in that: the outer side wall of the cyclone cylinder is further provided with an overflow pipe communicated with the interior of the cyclone cylinder, and the overflow pipe is vertically and fixedly arranged on the outer side wall of the cyclone cylinder.

5. The gas-water separation device of claim 1, characterized in that: the number of the silencing porous plates is multiple, and the silencing porous plates are arranged at intervals along the axial direction of the cylindrical barrel.

6. The gas-water separation device of claim 1, characterized in that: the closed end of the cylinder is also provided with a hydrogen concentration sensor, and the hydrogen concentration sensor is connected with the controller through an electric wire.

7. The gas-water separation device of claim 4, characterized in that: the water outlet is connected with a water outlet pipe, one end of the water outlet pipe, which is far away from the water outlet, is provided with a flow sensor, the inner wall of the water outlet pipe is wound with an electric heating wire, and the flow sensor and the electric heating wire are connected with a controller through electric wires.

8. The gas-water separation device of claim 7, characterized in that: the overflow pipe is communicated with a first pipe opening of the three-way pipe, the drain pipe is communicated with a second pipe opening of the three-way pipe, and the drainage assembly rubber pipe is communicated with a third pipe opening of the three-way pipe.

9. The gas-water separation device of claim 1, characterized in that: the mounting bracket is welded with the outer wall of the cylindrical barrel in a connecting mode, the drain pipe is welded with the water outlet in a connecting mode, the air inlet pipe is welded with the air inlet in a connecting mode, and the exhaust pipe is welded with the air outlet in a connecting mode.

10. A fuel cell vehicle, characterized in that: comprising a fuel cell engine, a controller and a gas-water separation device according to any one of claims 1 to 9.