CN110690480A - Water replenishing tank of fuel cell system and fuel cell system - Google Patents
Water replenishing tank of fuel cell system and fuel cell system Download PDFInfo
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- CN110690480A CN110690480A CN201911012514.8A CN201911012514A CN110690480A CN 110690480 A CN110690480 A CN 110690480A CN 201911012514 A CN201911012514 A CN 201911012514A CN 110690480 A CN110690480 A CN 110690480A
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- deionization
- fuel cell
- water tank
- water
- cell system
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 173
- 239000000446 fuel Substances 0.000 title claims abstract description 82
- 238000002242 deionisation method Methods 0.000 claims abstract description 101
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 239000000110 cooling liquid Substances 0.000 claims abstract description 35
- 238000005192 partition Methods 0.000 claims abstract description 14
- 230000001502 supplementing effect Effects 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002826 coolant Substances 0.000 description 21
- 238000013461 design Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 5
- 238000001802 infusion Methods 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04044—Purification of heat exchange media
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention belongs to the field of fuel cells, and discloses a water replenishing tank of a fuel cell system and the fuel cell system, wherein the water replenishing tank of the fuel cell system comprises a water tank, a partition plate and a deionization core body, the partition plate is vertically arranged in the water tank and divides the water tank into a first accommodating cavity and a second accommodating cavity, a through part is arranged on the partition plate, a main water drainage port is arranged at the bottom of the first accommodating cavity, and a liquid replenishing port is arranged at the bottom of the second accommodating cavity; the deionization core sets up at first holding the intracavity, and the bottom of deionization core is equipped with the water inlet, and the water inlet passes through the pipeline and communicates the setting with the main drainage mouth, is equipped with the delivery port on the top lateral wall of deionization core. The deionization core body is integrated in the water tank, so that the pipeline connection is less, the leakage point is less, the arrangement space is small, and the arrangement is convenient; the cooling liquid can fully utilize the deionized core from bottom to top, so that the deionized effect is improved; the liquid supplementing port is arranged at the bottom of the water tank, so that the phenomenon that liquid cannot be supplemented for the fuel cell due to the fact that cooling liquid exists in the water tank can be avoided.
Description
Technical Field
The invention belongs to the technical field of fuel cells, and particularly relates to a water replenishing tank of a fuel cell system and the fuel cell system.
Background
In recent years, under the large background of global response to energy conservation and emission reduction and clean energy use, the main countries and regions pay more and more attention to the development and utilization of hydrogen energy, and gradually put the hydrogen energy into relevant development strategies and industrial policies, so that the fuel cell automobile industry has attracted great attention as a main carrier of the fuel cell automobile industry. Some countries rank the fuel cell automobile industry as a national development strategy, plan and lay out the upstream hydrogen energy and fuel cell industry earlier, and continue to push the increase of the number of fuel cell automobiles in operation worldwide. As technology matures, the global and then battery car operation volume is growing rapidly. The domestic hydrogen fuel cell industry is also under vigorous stimulation of policy and market, and is developing vigorously.
In the fuel cell system, a cooling system is an indispensable part. Fuel cell systems have temperature, flow and conductivity requirements for cooling systems. In the industry, a water replenishing tank is mainly adopted for compensating cooling liquid of a system, and a deionizer is adopted for reducing the conductivity of the system. The method mainly comprises the following modes: the first is that the water replenishing tank and the deionizer are separately arranged in the system, and the design has the disadvantages that the system design is complex, the number of pipelines is large, the occupied arrangement space is large, the leakage point is large, and when the deionizer is replaced, the pipelines need to be disassembled, so that the leakage of cooling liquid is easily caused; the second is to integrate the deionizer into the water tank, the water tank is covered with a designed liquid inlet, the cooling liquid in the system enters the deionizer in the water tank from the liquid inlet on the water tank cover and then enters the water tank from the openings around the deionizer, and the design has the defects that the air exhaust and the liquid inlet are from top to bottom, and after the cooling liquid enters the deionizer, the resistance below the liquid level is greater than that above the liquid level, so that most of the cooling liquid leaves the deionizer above the liquid level, the deionizer cannot be fully utilized, and the deionization effect of the deionizer can be reduced; the third is to place the deionizer directly on the water replenishing port of the water replenishing tank and immerse the deionizer below the liquid level; the design has the disadvantages that when the water level is reduced and the volume is shrunk, if the liquid level does not exceed the uppermost liquid inlet of the deionizer, a large amount of cooling liquid can be contained in the water tank, but the cooling liquid cannot be supplemented into a fuel cell system, and the risk of water shortage of the system is caused; in order to avoid the risk of water shortage of the system, the liquid level is required to be far higher than the height of the deionizer, so that the liquid level of the water tank is required to be very high, the height of the water tank is very high, and the difficulty of spatial arrangement is increased.
Disclosure of Invention
The invention aims to provide a water replenishing tank of a fuel cell system and the fuel cell system, which can not only improve the deionization effect, but also reduce the requirement on the volume of cooling liquid.
The technical scheme provided by the invention is as follows:
in one aspect, there is provided a water replenishing tank of a fuel cell system, including:
a water tank;
the partition plate is vertically arranged in the water tank and divides the water tank into a first accommodating cavity and a second accommodating cavity, a through part which enables the first accommodating cavity and the second accommodating cavity to be arranged in a penetrating mode is arranged on the partition plate, a main water drainage port used for discharging cooling liquid in the fuel cell into the first accommodating cavity is formed in the bottom of the first accommodating cavity, and a liquid supplementing port used for supplementing the cooling liquid to the fuel cell is formed in the bottom of the second accommodating cavity;
the deionization core body is arranged in the first accommodating cavity, a water inlet is formed in the bottom of the deionization core body and communicated with the main water drainage port through a pipeline, and a water outlet is formed in the side wall of the top of the deionization core body.
Further, the deionization core body cover is also included;
the deionization core body cover is arranged at the top end of the deionization core body;
the top of the first accommodating cavity is provided with a connecting hole which protrudes out of the water tank;
the diameter of the deionization core body is smaller than that of the connecting hole;
the deionization core body cover is arranged on the connecting hole.
Further, the deionization core body cover is detachably connected with the deionization core body.
Furthermore, the deionization core body comprises a shell and a bottom cover, the bottom cover is detachably arranged at the bottom of the shell, the water inlet is formed in the bottom cover, and the water outlet is formed in the side wall of one end, far away from the bottom cover, of the shell.
Furthermore, the deionization core also comprises a filter screen, the filter screen is arranged in the shell, and the height from the filter screen to the bottom cover is the same as the height from the bottom end of the water outlet to the bottom cover;
and the area in the shell between the bottom cover and the filter screen is filled with ion adsorption resin.
Further, a ratio of a cross-sectional area of the deionizing core to a cross-sectional area of the first containing cavity ranges from 1 to 1.2.
Furthermore, the second accommodating cavity is also provided with an auxiliary water outlet for discharging cooling liquid in the fuel cell into the water tank, and the auxiliary water outlet is arranged at the top of the second accommodating cavity.
Further, the device also comprises a pressure cover;
the top in second holding chamber is equipped with the filling opening, the filling opening protrusion the water tank sets up, the pressure lid sets up on the filling opening.
Further, the water tank also comprises a mounting bracket arranged outside the water tank;
one end of the mounting bracket is connected with the water tank, and the other end of the mounting bracket is provided with a connecting part.
In another aspect, a fuel cell system is provided, which includes the water replenishing tank of the fuel cell system.
The water replenishing tank of the fuel cell system and the fuel cell system provided by the invention can bring at least one of the following beneficial effects: the deionization core body is integrated in the water tank, so that the pipeline connection is less, the leakage point is less, the arrangement space is small, and the arrangement is convenient; the cooling liquid and the gas exhausted from the fuel cell enter the deionization core body from the bottom of the water tank and are exhausted from the top of the deionization core body, so that the cooling liquid can completely flow through the deionization core body, the deionization core body is fully utilized, and the deionization effect is maximized; the deionization core sets up at first holding the intracavity, and the first most space that holds the intracavity is occupied by the deionization core, and a small amount of coolant liquid can fill up first holding the chamber for it is not high to the requirement of coolant liquid volume, and does not have rigorous requirement to the high design of water tank, and in addition, the fluid infusion mouth sets up in the bottom of water tank, can avoid appearing having the coolant liquid in the water tank, and can't be the phenomenon of fuel cell fluid infusion.
Drawings
The above features, technical features, advantages and implementations of a fuel cell system makeup tank and fuel cell system will be further described in the following detailed description of preferred embodiments in a clearly understandable manner with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of a make-up water tank of a fuel cell system of the present invention;
FIG. 2 is a front view of a make-up water tank of a fuel cell system of the present invention;
FIG. 3 is a cross-sectional view of a fuel cell system of the present invention with the refill tank not provided with a deionizing core;
FIG. 4 is a schematic structural diagram of a deionized core of a makeup tank for a fuel cell system according to the present invention;
FIG. 5 is a cross-sectional view of a deionized core of a makeup tank for a fuel cell system of the present invention;
fig. 6 is a schematic diagram of the internal structure of the deionizing core of the makeup tank of a fuel cell system according to the present invention.
Description of the reference numerals
1. A water tank; 11. a first accommodating chamber; 12. a second accommodating chamber; 13. a main drainage port; 14. a fluid infusion port; 15. connecting holes; 16. an auxiliary water discharge port; 17. a liquid filling port; 2. a partition plate; 21. a through part; 3. a deionizing core; 31. a water inlet; 32. a water outlet; 33. a housing; 34. a bottom cover; 35. filtering with a screen; 4. a deionized core cover; 5. a pressure cap; 6. mounting a bracket; 61. a connecting portion; 7. and (5) reinforcing ribs.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
The embodiment of the invention provides a water replenishing tank of a fuel cell system, which comprises a water tank 1, a partition plate 2 and a deionization core body 3 as shown in figures 1 to 3. The cooling liquid is equipped with in the water tank 1, and water tank 1 can be designed into arbitrary shape according to the assembly demand, if can design for shape such as cuboid, square or cylinder, this application does not do the restriction to the concrete shape of water tank 1.
The baffle plate 2 is vertically arranged in the water tank 1, the water tank 1 is divided into a first containing cavity 11 and a second containing cavity 12, the baffle plate 2 is provided with a through part 21 which enables the first containing cavity 11 and the second containing cavity 12 to be arranged in a through mode, the through part 21 can be a through hole arranged on the baffle plate 2, namely, the bottom end of the baffle plate 2 is connected with the bottom of the water tank 1, the top end of the baffle plate 2 is connected with the top of the water tank 1, and then the baffle plate 2 is provided with the through hole; in addition, the bottom end of the partition board 2 can be connected with the bottom of the water tank 1, and the top end of the partition board 2 is not connected with the top of the water tank 1, so that a gap is formed between the top end of the partition board 2 and the top of the water tank 1, and the gap is the through part 21. When both ends of the partition plate 2 are connected to the water tank 1, respectively, the penetration portion 21 may be disposed at an arbitrary height on the partition plate 2; when the bottom of baffle 2 is connected with 1 bottom of water tank, when the top of baffle 2 and 1 top of water tank were not connected with each other, the height of baffle 2 should not set up crosses lowly, avoids can't spacing deionization core 3 when installation deionization core 3, increases deionization core 3's the installation degree of difficulty.
The bottom of the first accommodating cavity 11 is provided with a main water outlet 13 for discharging the cooling liquid in the fuel cell into the first accommodating cavity 11, and the bottom of the second accommodating cavity 12 is provided with a liquid supplementing port 14 for supplementing the cooling liquid to the fuel cell; deionization core 3 sets up in first holding chamber 11, and the bottom of deionization core 3 is equipped with water inlet 31, and water inlet 31 sets up through pipeline and main drainage mouth 13 intercommunication, is equipped with delivery port 32 on the top lateral wall of deionization core 3.
The main water discharge port 13 and the liquid supplementing port 14 on the water tank 1 are respectively connected with the fuel cell to form a liquid supplementing loop. When the coolant is replenished to the fuel cell in the initial stage of the water replenishing tank, the coolant in the water tank 1 is replenished to the fuel cell through the liquid replenishing port 14, and air in the fuel cell enters the water tank 1 through the main water discharge port 13, so that the air discharge function of the fuel cell is realized. In the process of continuous operation of the fuel cell, the cooling liquid in the water tank 1 is replenished with liquid for the fuel cell through the liquid replenishing port 14, the cooling liquid flows back into the water tank 1 through the main water discharging port 13 after passing through the fuel cell, the main water discharging port 13 is communicated with the water inlet 31 at the bottom of the deionization core body 3 through a pipeline, so that the cooling liquid discharged through the main water discharge port 13 directly enters the water inlet port 31 at the bottom of the deionization core body 3 through a pipeline, then enters the deionization core body 3 through the water inlet 31, the side wall of the top of the deionization core body 3 is provided with the water outlet 32, the cooling liquid completely flows through the deionization core body 3 by using a full liquid overflow method, the conductivity of the cooling liquid is reduced, the cooling liquid with the reduced conductivity is discharged into the first accommodating cavity 11 from the water outlet 32 on the side wall of the top of the deionization core body 3, and finally enters the second accommodating cavity 12 through the through part 21, and the circulating liquid supplement of the fuel cell is completed.
In the embodiment, the deionization core body 3 is integrated in the water tank 1, so that the pipeline connection is less, the leakage point is less, the arrangement space is small, and the arrangement is convenient; the cooling liquid and gas discharged from the fuel cell enter the deionization core body 3 from the bottom of the water tank 1 and are discharged from the top of the deionization core body 3, so that the cooling liquid can completely flow through the deionization core body 3, the deionization core body 3 is fully utilized, and the deionization effect is maximized; deionization core 3 sets up in first holding chamber 11, and most spaces are occupied by deionization core 3 in the first holding chamber 11, and a small amount of coolant liquid can fill up first holding chamber 11 for it is not high to the requirement of coolant liquid volume, and does not have the rigorous requirement to the high design of water tank 1, and in addition, fluid infusion mouth 14 sets up in the bottom of water tank 1, can avoid appearing having the coolant liquid in the water tank 1, and can't be the phenomenon of fuel cell fluid infusion.
In one embodiment, as shown in FIG. 1, further comprises a deionizing core cover 4; the deionization core body cover 4 is arranged at the top end of the deionization core body 3; the top of the first accommodating cavity 11 is provided with a connecting hole 15, the connecting hole 15 and the water tank 1 can be integrally formed, and the connecting hole 15 is arranged to protrude out of the water tank 1; the diameter of the deionization core body 3 is smaller than that of the connecting hole 15, so that the deionization core body 3 can be conveniently taken out of the connecting hole 15; the deionization core body cover 4 is covered on the connecting hole 15, and the connecting hole 15 and the deionization core body cover 4 are respectively provided with threads, so that the deionization core body cover 4 is in threaded connection with the connecting hole 15.
Deionization core lid 4 sets up on deionization core 3's top, and deionization core 3's diameter is less than the diameter of connecting hole 15, and after fuel cell system operation a period, when deionization core 3 needs to be changed, deionization core lid 4 and deionization core 3 can be dismantled from water tank 1 as a whole, can not cause the coolant liquid in the water tank 1 to flow outward. The deionization core body cover 4 is covered on the connecting hole 15, when the deionization core body 3 is replaced, only the connection between the deionization core body cover 4 and the connecting hole 15 needs to be disconnected, the water discharge pipe covered by the water tank 1 does not need to be rotated, the pipe orifice is prevented from being loosened, and then the liquid leakage phenomenon is avoided.
Preferably, deionization core lid 4 can be dismantled with deionization core 3 and be connected, and deionization core 3 can be in the same place with deionization core lid 4 accessible connection bayonet coupling, and connection bayonet coupling setting is in deionization core 3's top, also can be in the same place through threaded connection as long as can realize deionization core 3 and deionization core lid 4 can dismantle the connection can, and this application does not do any restriction to deionization core lid 4 and deionization core 3's concrete connected mode.
With deionization core 3 and deionization core lid 4 as a whole take off the back from water tank 1, can take off more new deionization core 3 from deionization core lid 4 with deionization core 3, only need change deionization core 3 promptly, and need not change deionization core lid 4, make deionization core lid 4 repeatedly usable, reduce use cost.
In one embodiment, as shown in fig. 4 to 6, the deionizing core 3 comprises a shell 33 and a bottom cover 34, the bottom cover 34 is detachably disposed at the bottom of the shell 33, the bottom cover 34 is provided with a water inlet 31, and the side wall of one end of the shell 33 far away from the bottom cover 34 is provided with a water outlet 32.
The deionization core body 3 also comprises a filter screen 35, the filter screen 35 is arranged in the shell 33, and the height of the filter screen 35 from the bottom cover 34 is the same as the height of the bottom end of the water outlet 32 from the bottom cover 34; a filter screen is further disposed in the housing 33 above the bottom cover 34 and below the filter screen 35, and the region between the filter screen and the filter screen 35 is filled with ion-adsorbing resin.
Set up filter screen 35 to the same with the bottom height of delivery port 32, and delivery port 32 sets up on the lateral wall of casing 33 top, volume between the two filter screens of increase that can maximize to hold more ion adsorption resin, and then improve the ion adsorption effect of deionization core 3.
In one embodiment, the ratio of the cross-sectional area of the deionizing core 3 to the cross-sectional area of the first containing chamber 11 ranges from 1 to 1.2. For facilitating the handling of the deionizing core 3, the cross-sectional area of the first containing chamber 11 should be larger than that of the deionizing core 3, and when the cross-sectional area of the first containing chamber 11 is too large, the requirement for the volume of the cooling liquid is increased. Therefore, when the first accommodating cavity 11 is designed, the ratio of the cross-sectional area of the ion core body 3 to the cross-sectional area of the first accommodating cavity 11 is set to be 1-1.2, so that the requirement on the volume of the cooling liquid can be reduced as much as possible while the deionized core body 3 is ensured to be conveniently taken and placed.
Preferably, as shown in fig. 1, the second accommodating chamber 12 is further provided with an auxiliary water discharge port 16 for discharging the coolant in the fuel cell into the water tank 1, and the auxiliary water discharge port 16 is provided at the top of the second accommodating chamber 12.
The auxiliary water discharge port 16 is connected to the fuel cell pipe, and the auxiliary water discharge port 16 functions in the same manner as the main water discharge port 13 at the bottom of the first accommodating chamber 11, both for recovering the coolant passing through the fuel cell into the water tank 1, but the main drain opening 13 plays a main role of recovery, the auxiliary drain opening 16 plays an auxiliary role of recovery, the coolant entering the tank 1 from the auxiliary drain opening 16 is smaller than the coolant entering the tank 1 from the main drain opening 13, that is, the amount of liquid entering the auxiliary drain opening 16 is small, so that the auxiliary drain opening 16 needs to be provided at the top of the second receiving chamber 12, and if the auxiliary drain opening 16 is provided at the bottom of the water tank 1, since the resistance under the liquid surface is large and the flow rate of the coolant entering the auxiliary drain opening 16 is small, the coolant cannot enter the water tank 1 against the resistance under the liquid surface, which may result in that the coolant cannot enter the water tank 1 through the auxiliary drain opening 16. Since less coolant is discharged into the water tank 1 through the auxiliary drain port 16, the coolant entering the water tank 1 through the auxiliary drain port 16 does not cause a significant change in the conductivity of the coolant in the water tank 1 even though the coolant enters the water tank 1 without passing through the ion core 3. During actual operation of the fuel cell system, the fuel cell system discharges gas, which enters the water tank 1 with liquid from the auxiliary drain port 16 or the main drain port.
Preferably, as shown in fig. 1, a pressure cover 5 is further included; the top of the second containing cavity 12 is provided with a liquid filling port 17, the liquid filling port 17 protrudes out of the water tank 1, the pressure cover 5 is arranged on the liquid filling port 17, and the pressure cover 5 can be in threaded connection with the liquid filling port 17. The water tank 1 is provided with a pressure cover 5 which can provide positive pressure for the fuel cell system and ensure that the boiling point of the cooling liquid is above the highest temperature of the fuel cell system. The charging port 17 can be used to charge the tank 1 with coolant.
Preferably, as shown in fig. 1, further comprises a mounting bracket 6 disposed outside the water tank 1; one end of the mounting bracket 6 is connected with the water tank 1, the other end of the mounting bracket 6 is provided with a connecting part 61, and the water tank 1 is fixedly mounted through the connecting part 61. The number of the mounting brackets 6 is one or more and is distributed outside the water tank 1.
Still be equipped with a plurality of strengthening ribs 7 in the water tank 1, at least one strengthening rib 7 sets up in the water tank 1 along the direction of height of water tank 1, and at least one strengthening rib 7 sets up in the water tank 1 along the length direction of water tank 1, sets up the intensity that a plurality of strengthening ribs 7 can improve water tank 1.
Embodiments of the present invention also provide a fuel cell system, as shown in fig. 1 to 6, including the water replenishing tank of the fuel cell system in any one of the above embodiments. After the cooling liquid is filled in the water tank 1, the cooling liquid flows out from the liquid supplementing port 14 on the water tank 1, flows through the fuel cell and then enters the deionization core body 3 in the water tank 1 from the main water discharging port 13 on the water tank 1, and enters the water tank 1 after being deionized by the deionization core body 3, and then the liquid supplementing port 14 is used for supplementing the fuel cell, and the purpose of compensating the cooling liquid for the fuel cell is achieved through continuous circulation.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A water replenishment tank of a fuel cell system, comprising:
a water tank;
the partition plate is vertically arranged in the water tank and divides the water tank into a first accommodating cavity and a second accommodating cavity, a through part which enables the first accommodating cavity and the second accommodating cavity to be arranged in a penetrating mode is arranged on the partition plate, a main water drainage port used for discharging cooling liquid in the fuel cell into the first accommodating cavity is formed in the bottom of the first accommodating cavity, and a liquid supplementing port used for supplementing the cooling liquid to the fuel cell is formed in the bottom of the second accommodating cavity;
the deionization core body is arranged in the first accommodating cavity, a water inlet is formed in the bottom of the deionization core body and communicated with the main water drainage port through a pipeline, and a water outlet is formed in the side wall of the top of the deionization core body.
2. The water replenishing tank of a fuel cell system according to claim 1,
also includes a deionization core body cover;
the deionization core body cover is arranged at the top end of the deionization core body;
the top of the first accommodating cavity is provided with a connecting hole which protrudes out of the water tank;
the diameter of the deionization core body is smaller than that of the connecting hole;
the deionization core body cover is arranged on the connecting hole.
3. The water replenishment tank of a fuel cell system according to claim 2,
the deionization core body cover is detachably connected with the deionization core body.
4. The water replenishing tank of a fuel cell system according to claim 1,
the deionization core body comprises a shell and a bottom cover, the bottom cover is detachably arranged at the bottom of the shell, the bottom cover is provided with the water inlet, and the side wall of one end, far away from the bottom cover, of the shell is provided with the water outlet.
5. The water replenishment tank of a fuel cell system according to claim 4,
the deionization core body also comprises a filter screen, the filter screen is arranged in the shell, and the height from the filter screen to the bottom cover is the same as the height from the bottom end of the water outlet to the bottom cover;
and the area in the shell between the bottom cover and the filter screen is filled with ion adsorption resin.
6. The makeup water tank for a fuel cell system according to any one of claims 1 to 5,
the ratio of the cross-sectional area of the deionizing core to the cross-sectional area of the first containing cavity ranges from 1 to 1.2.
7. The makeup water tank for a fuel cell system according to any one of claims 1 to 5,
and the second accommodating cavity is also provided with an auxiliary water outlet for discharging cooling liquid in the fuel cell into the water tank, and the auxiliary water outlet is arranged at the top of the second accommodating cavity.
8. The makeup water tank for a fuel cell system according to any one of claims 1 to 5,
the pressure cover is also included;
the top in second holding chamber is equipped with the filling opening, the filling opening protrusion the water tank sets up, the pressure lid sets up on the filling opening.
9. The water replenishing tank of a fuel cell system according to claim 1,
the water tank also comprises a mounting bracket arranged on the outer side of the water tank;
one end of the mounting bracket is connected with the water tank, and the other end of the mounting bracket is provided with a connecting part.
10. A fuel cell system characterized by comprising the makeup tank of the fuel cell system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911012514.8A CN110690480A (en) | 2019-10-23 | 2019-10-23 | Water replenishing tank of fuel cell system and fuel cell system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911012514.8A CN110690480A (en) | 2019-10-23 | 2019-10-23 | Water replenishing tank of fuel cell system and fuel cell system |
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| Publication Number | Publication Date |
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| CN110690480A true CN110690480A (en) | 2020-01-14 |
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| CN201911012514.8A Pending CN110690480A (en) | 2019-10-23 | 2019-10-23 | Water replenishing tank of fuel cell system and fuel cell system |
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| CN210379272U (en) * | 2019-10-23 | 2020-04-21 | 上海燃料电池汽车动力系统有限公司 | Water replenishing tank of fuel cell system and fuel cell system |
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