CN212412099U - Gas-liquid separation device - Google Patents
Gas-liquid separation device Download PDFInfo
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- CN212412099U CN212412099U CN202022131889.0U CN202022131889U CN212412099U CN 212412099 U CN212412099 U CN 212412099U CN 202022131889 U CN202022131889 U CN 202022131889U CN 212412099 U CN212412099 U CN 212412099U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The utility model relates to a fuel cell gas-liquid separation structure field discloses a gas-liquid separation device, including once dividing the cavity and the secondary cavity that divides, the secondary divide the cavity set up in once divide the top of cavity, the secondary divides the cavity to be connected with the secondary and divides the gas-liquid mixture entry, the secondary divide the gas-liquid mixture entry set up in once divide the top of cavity, the secondary divides the cavity to pass through the secondary divide the gas-liquid mixture entry with once divide the cavity to connect, the secondary divides the cavity to be connected with gaseous mixture export. The utility model provides a gas-liquid separation of integrated form device adds the secondary cavity of dividing at once dividing water cavity top, realizes once that the gas-liquid mixture after dividing gets into the secondary once more and divides water in the cavity, improves gas-liquid separation's efficiency.
Description
Technical Field
The utility model relates to a fuel cell gas-liquid separation structure field provides a gas-liquid separation device very much.
Background
The hydrogen side of the fuel cell is usually provided with a hydrogen reflux system, i.e. the fuel cell stack-out hydrogen mixture is driven by a hydrogen circulating pump (or an ejector) to reflux to a hydrogen stack-in pipeline and is mixed with newly supplied hydrogen to enter the electric stack. The fuel cell hydrogen stack mixture mainly contains hydrogen, nitrogen, water and other components, wherein the water usually exists in a gas-liquid mixed mode, and simultaneously contains two modes of water vapor and liquid water.
If the liquid water in the discharged mixture is not separated in time, the hydrogen return flow path can bring the liquid water to the inlet of the galvanic pile again, the operation humidity control of the galvanic pile can be influenced, and the water blockage inside the galvanic pile can be caused in serious cases.
The common gas-liquid separation devices are classified into centrifugal type, inertial force/gravity separation type, filter element type, etc. according to the purpose and requirement. The inertia force/gravity separation mode mainly utilizes the difference of density characteristics of gas phase and liquid phase in a separated gas-liquid mixture, and gas phase and liquid phase flow tracks are different after the gas-liquid separation device is subjected to the action of inertia force and gravity in the flow process to form a gas gathering area and a liquid gathering area. The inertia/gravity gas-liquid separation does not need additional driving energy, has small flow loss and high operation reliability. However, the design of the inertial force and gravity gas-liquid separation device mainly depends on the inertial force and gravity of the fluid to realize gas-liquid separation, and generally, the gas-liquid separation efficiency is low, and the space for gas-liquid separation is large.
The working condition load of the vehicle fuel cell system changes greatly, the vehicle running shaking amplitude is large, and the gas-liquid separation efficiency is greatly interfered by factors such as transient change of air flow, liquid level shaking and the like. Under some severe conditions, the fuel cell needs to operate below-30 ℃, and liquid water in the water diversion structure is easy to freeze and further block a gas flow channel under the conditions. One of the solutions to this problem is to integrate the water diversion structure in the end plate of the fuel cell stack, and heat the water diversion structure by using the heat generated by the operation of the fuel cell stack.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems of large volume, high requirement on spatial arrangement, low gas-liquid separation efficiency and the like of the gas-liquid separation structure in the prior art, the utility model provides a gas-liquid separation device.
The technical scheme of the utility model as follows:
the utility model provides a gas-liquid separation device, includes once the cavity of dividing and the cavity of dividing of secondary, the secondary divide the cavity set up in the top of once dividing the cavity, the secondary divides the cavity to be connected with the secondary and divides the gas-liquid mixture entry, the secondary divide the gas-liquid mixture entry set up in the top of once dividing the cavity, the secondary divides the cavity to pass through the secondary divide the gas-liquid mixture entry with once divide the cavity to connect, the secondary divides the cavity to be connected with gaseous mixture export.
Further, a secondary water distribution baffle and a side plate are arranged at the secondary water distribution gas-liquid mixture inlet, the secondary water distribution baffle is connected with the secondary water distribution cavity, and the side plate is connected with the primary water distribution cavity.
Furthermore, the bottom of the secondary water diversion cavity is provided with a channel, an end face baffle is arranged above the channel and arranged below the gaseous mixed gas outlet, and the secondary water diversion cavity is connected with the primary water diversion cavity through the channel.
Further, the secondary water distribution cavity is provided with an inclined bottom surface which inclines towards the channel, and the inclination angle is at least larger than 15 degrees.
Furthermore, the two groups of secondary water-dividing gas-liquid mixture inlets are respectively connected to two side edges of the secondary water-dividing cavity and connected with the primary water-dividing cavity.
Furthermore, the primary water distribution cavity is connected with a primary water distribution gas-liquid mixture inlet and a liquid discharge port, the primary water distribution gas-liquid mixture inlet is formed in the top of the primary water distribution cavity, the primary water distribution gas-liquid mixture inlet is provided with a primary water distribution baffle, the primary water distribution baffle is connected with the secondary water distribution gas-liquid mixture inlet, and the liquid discharge port is formed in the bottom of the primary water distribution cavity.
Furthermore, the primary water distribution gas-liquid mixture inlets are divided into two groups, are respectively connected with the primary water distribution cavity and are arranged on two sides of the top of the primary water distribution cavity.
The utility model discloses at least, include following beneficial effect:
(1) the integrated gas-liquid separation device is provided, the secondary water distribution cavity is additionally arranged at the top of the primary water distribution cavity, so that a gas-liquid mixture subjected to primary water distribution enters the secondary water distribution cavity again to realize secondary water distribution, and the gas-liquid separation efficiency is improved;
(2) the secondary water-separating gas-liquid mixture inlet of the secondary water-separating cavity is arranged at the top of the primary water-separating cavity, the interference of liquid level shaking is small, and the gas-liquid separation effect is stable;
(3) the secondary water diversion cavity is provided with a bottom surface which is inclined downwards, so that liquid water in the secondary water diversion cavity can be collected conveniently;
(4) the primary water distribution cavity and the secondary water distribution cavity are communicated through a channel, and liquid water in the secondary water distribution cavity is converged into the primary water distribution cavity and then is discharged through a liquid outlet;
(5) the primary water distribution cavity and the secondary water distribution cavity both adopt baffle structures, and the processing technology is simple and convenient to use.
Drawings
Fig. 1 is a schematic view of the overall structure of the gas-liquid separation device of the present invention.
Fig. 2 is a schematic front view of a first embodiment of the present invention.
Fig. 3 is a schematic front view of a second embodiment of the present invention.
Fig. 4 is a schematic side sectional view of the gas-liquid separator of the present invention.
Wherein:
1-primary water diversion cavity;
2-secondary water distribution cavity;
3-secondary water diversion gas-liquid mixture inlet;
4-a gaseous mixed gas outlet;
5-secondary water diversion baffle;
6-side plate;
7-a channel;
8-end face baffle;
9-inclined bottom surface;
10-a primary water diversion gas-liquid mixture inlet;
11-a liquid discharge port;
12-primary water diversion baffle.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Combine shown in figure 1, the utility model provides a gas-liquid separation device, including once divide water cavity 1 and secondary cavity 2 that divides, secondary divide water cavity 2 set up in once divide water cavity 1's top, secondary divide water cavity 2 to be connected with secondary and divide water gas-liquid mixture entry 3, secondary divide water gas-liquid mixture entry 3 set up in once divide water cavity 1's top, secondary divide water cavity 2 to pass through secondary divide water gas-liquid mixture entry 3 with once divide water cavity 1 to connect, secondary divides water cavity 2 to be connected with gaseous mixture export 4.
Example one
As shown in fig. 2 and 4, the utility model provides a gas-liquid separation device externally connected outside the galvanic pile alone, including a primary water diversion cavity 1 and a secondary water diversion cavity 2, the secondary water diversion cavity 2 is arranged above the primary water diversion cavity 1, the primary water diversion cavity 1 is provided with a primary water diversion gas-liquid mixture inlet 10 and a liquid discharge port 11, the primary water diversion gas-liquid mixture inlet 10 is arranged beside the top side of the primary water diversion cavity 1, the primary water diversion gas-liquid mixture inlet 10 is connected with a secondary water diversion gas-liquid mixture inlet 3, and the secondary water diversion gas-liquid mixture inlet 3 is connected with the secondary water diversion cavity 2; the liquid outlet 11 is arranged at the bottom of the primary water diversion cavity 1.
A primary water distribution baffle 12 is arranged on one side of the primary water distribution gas-liquid mixture inlet 10 close to the secondary water distribution gas-liquid mixture inlet 3, the primary water distribution baffle 12 is connected with the secondary water distribution gas-liquid mixture inlet 3, and the primary water distribution baffle 12 is used for primary gas-liquid separation.
The secondary water distribution gas-liquid mixture inlet 3 comprises two groups and is respectively arranged on two side edges of the secondary water distribution cavity 2, a secondary water distribution baffle 5 is arranged on one side, close to the secondary water distribution cavity 2, of the secondary water distribution gas-liquid mixture inlet 3, the secondary water distribution baffle 5 is used for secondary gas-liquid separation, the secondary water distribution baffle 5 is connected with the secondary water distribution cavity 2, a side plate 6 is further arranged on the secondary water distribution gas-liquid mixture inlet 3, two ends of the side plate 6 are respectively connected with the primary water distribution cavity 1 and the secondary water distribution cavity 2, one end, connected with the primary water distribution cavity 1, of the side plate 6 extends to the middle upper portion of the primary water distribution cavity 1, and a through groove is formed in the middle upper portion of the primary water distribution cavity 1 by.
The secondary water diversion cavity 2 is provided with a gas-state mixed gas outlet 4 in the direction vertical to the primary water diversion gas-liquid mixture inlet 10, the bottom surface of the secondary water diversion cavity 2 is an inclined bottom surface 9, the gas-state mixed gas outlet is inclined downwards in the direction of the gas-state mixed gas outlet 4, the inclination angle is not less than 15 degrees in consideration of the situation of draining under the harsh conditions of vehicle running acceleration, inclination and the like, the inclined bottom of the inclined bottom surface 9 is provided with a channel 7, the secondary water diversion cavity 2 is connected with the primary water diversion cavity 1 through the channel 7, and the channel 7 supplies liquid water for secondary gas-liquid separation to drain from the secondary water diversion cavity 2 into the primary water diversion cavity 1; the inclined bottom surface 9 is provided above the through groove formed by the two side plates 6.
An end face baffle plate 8 is arranged above the channel 7, the end face baffle plate 8 is arranged below the gaseous mixture outlet 4, the end face baffle plate 8 and the inclined bottom face 9 form a throttling throat, and the flow area of the throat can be determined jointly according to the pressure difference between the primary water distribution cavity 1 and the secondary water distribution cavity 2 and the liquid discharge amount of the secondary water distribution cavity 2.
Example two
As shown in fig. 3 and 4, the utility model also provides a gas-liquid separation device that can place in two electric pile module hydrogen outlet manifold in integratedly, including once divide cavity 1 and secondary divide cavity 2, secondary divides water cavity 2 to set up in the top of once dividing water cavity 1, once divides water cavity 1 to be equipped with two once divide water gas-liquid mixture inlets 10 and leakage fluid dram 11, once divides water gas-liquid mixture inlet 10 to set up by the top side of once dividing water cavity 1, once divides water gas-liquid mixture inlet 10 to be connected with secondary and divides water gas-liquid mixture inlet 3, secondary divides water gas-liquid mixture inlet 3 and secondary to divide water cavity 2 to be connected; the liquid outlet 11 is arranged at the bottom of the primary water diversion cavity 1.
The two primary water-separating gas-liquid mixture inlets 10 are connected with a hydrogen outlet of an electric pile of the fuel cell system, the liquid outlet 11 is connected with a tail discharge valve of the fuel cell system and is mainly used for discharging liquid water after gas-liquid separation, the gas-liquid mixture outlet 4 after gas-liquid separation is connected with a hydrogen reflux inlet of the fuel cell system, and hydrogen reflux driving refers to a hydrogen reflux pump or an ejector.
A primary water distribution baffle 12 is arranged on one side of the primary water distribution gas-liquid mixture inlet 10 close to the secondary water distribution gas-liquid mixture inlet 3, the primary water distribution baffle 12 is connected with the secondary water distribution gas-liquid mixture inlet 3, and the primary water distribution baffle 12 is used for primary gas-liquid separation.
The secondary water distribution gas-liquid mixture inlet 3 comprises two groups and is respectively arranged on two side edges of the secondary water distribution cavity 2, a secondary water distribution baffle 5 is arranged on one side, close to the secondary water distribution cavity 2, of the secondary water distribution gas-liquid mixture inlet 3, the secondary water distribution baffle 5 is used for secondary gas-liquid separation, the secondary water distribution baffle 5 is connected with the secondary water distribution cavity 2, a side plate 6 is further arranged on the secondary water distribution gas-liquid mixture inlet 3, two ends of the side plate 6 are respectively connected with the primary water distribution cavity 1 and the secondary water distribution cavity 2, one end, connected with the primary water distribution cavity 1, of the side plate 6 extends to the middle upper portion of the primary water distribution cavity 1, and a through groove is formed in the middle upper portion of the primary water distribution cavity 1 by.
The secondary water distribution cavity 2 is provided with a gas-state mixed gas outlet 4 in the direction vertical to the primary water distribution gas-liquid mixture inlet 10, the bottom surface of the secondary water distribution cavity 2 is an inclined bottom surface 9, the gas-state mixed gas outlet is inclined downwards in the direction of the gas-state mixed gas outlet 4, the inclination angle is not less than 15 degrees in consideration of the situation of draining under the harsh conditions of vehicle running acceleration, inclination and the like, the inclined bottom of the inclined bottom surface 9 is provided with a channel 7, the secondary water distribution cavity 2 is connected with the primary water distribution cavity 1 through the channel 7, and the channel 7 supplies liquid water for secondary gas-liquid separation to drain from the secondary water distribution cavity 2 into the primary water distribution cavity 1; the inclined bottom surface 9 is provided above the through groove formed by the two side plates 6.
An end face baffle plate 8 is arranged above the channel 7, the end face baffle plate 8 is arranged below the gaseous mixture outlet 4, the end face baffle plate 8 and the inclined bottom face 9 form a throttling throat, and the flow area of the throat can be determined jointly according to the pressure difference between the primary water distribution cavity 1 and the secondary water distribution cavity 2 and the liquid discharge amount of the secondary water distribution cavity 2.
The utility model provides an integrated gas-liquid separation device, wherein a secondary water diversion cavity 2 is additionally arranged at the top of a primary water diversion cavity 1, so that a gas-liquid mixture after primary water diversion enters the secondary water diversion cavity 2 again to realize secondary water diversion, and the gas-liquid separation efficiency is improved; the secondary water-separating gas-liquid mixture inlet of the secondary water-separating cavity 2 is arranged at the top of the primary water-separating cavity 1, the interference of liquid level shaking is small, and the gas-liquid separation effect is stable.
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 should be covered by the present invention.
Claims (7)
1. A gas-liquid separation device is characterized in that: the secondary water distribution cavity is arranged at the top of the primary water distribution cavity and is connected with a secondary water distribution gas-liquid mixture inlet, the secondary water distribution gas-liquid mixture inlet is arranged at the top of the primary water distribution cavity, the secondary water distribution cavity is connected with the primary water distribution cavity through the secondary water distribution gas-liquid mixture inlet, and is connected with a gaseous mixture outlet.
2. A gas-liquid separating apparatus according to claim 1, wherein: the bottom of the secondary water diversion cavity is provided with a channel, an end face baffle is arranged above the channel and arranged below the gaseous mixture outlet, and the secondary water diversion cavity is connected with the primary water diversion cavity through the channel.
3. A gas-liquid separating apparatus according to claim 1, wherein: the secondary water-distributing gas-liquid mixture inlet is provided with a secondary water-distributing baffle plate and a side plate, the secondary water-distributing baffle plate is connected with the secondary water-distributing cavity, and the side plate is connected with the primary water-distributing cavity.
4. A gas-liquid separating apparatus according to claim 2, wherein: the secondary water diversion cavity is provided with an inclined bottom surface which inclines towards the channel, and the inclination angle is at least larger than 15 degrees.
5. A gas-liquid separating apparatus according to claim 1, wherein: and the two groups of secondary water-distributing gas-liquid mixture inlets are respectively connected to two side edges of the secondary water-distributing cavity and connected with the primary water-distributing cavity.
6. A gas-liquid separating apparatus according to claim 1, wherein: the primary water distribution cavity is connected with a primary water distribution gas-liquid mixture inlet and a liquid discharge port, the primary water distribution gas-liquid mixture inlet is formed in the top of the primary water distribution cavity, a primary water distribution baffle is arranged at the primary water distribution gas-liquid mixture inlet, the primary water distribution baffle is connected with the secondary water distribution gas-liquid mixture inlet, and the liquid discharge port is formed in the bottom of the primary water distribution cavity.
7. A gas-liquid separating apparatus according to claim 6, wherein: the primary water-separating gas-liquid mixture inlets are divided into two groups, are respectively connected with the primary water-separating cavity and are arranged on two sides of the top of the primary water-separating cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022131889.0U CN212412099U (en) | 2020-09-25 | 2020-09-25 | Gas-liquid separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022131889.0U CN212412099U (en) | 2020-09-25 | 2020-09-25 | Gas-liquid separation device |
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| Publication Number | Publication Date |
|---|---|
| CN212412099U true CN212412099U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022131889.0U Active CN212412099U (en) | 2020-09-25 | 2020-09-25 | Gas-liquid separation device |
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| CN (1) | CN212412099U (en) |
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- 2020-09-25 CN CN202022131889.0U patent/CN212412099U/en active Active
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Effective date of registration: 20211210 Address after: 075000 No.28 Zhanqian East Street, Qiaodong District, Zhangjiakou City, Hebei Province Patentee after: Yihuatong Power Technology Co.,Ltd. Address before: Room c701, 7th floor, block C, building B-6, Dongsheng science and Technology Park, Zhongguancun, 66 xixiaokou Road, Haidian District, Beijing 100089 Patentee before: BEIJING SINOHYTEC Co.,Ltd. |