CN110534774A - The method and device of battery pile cold-starting - Google Patents

The method and device of battery pile cold-starting Download PDF

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Publication number
CN110534774A
CN110534774A CN201910754961.4A CN201910754961A CN110534774A CN 110534774 A CN110534774 A CN 110534774A CN 201910754961 A CN201910754961 A CN 201910754961A CN 110534774 A CN110534774 A CN 110534774A
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battery pile
chamber
starting
cold
cooling chamber
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CN110534774B (en
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任鑫
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Xingtai Taiyi New Energy Technology Co ltd
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Hebei Qingqing Battery Co Ltd
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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
    • H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
    • H01M8/04225—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells during start-up
    • 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
    • H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
    • H01M8/04253—Means for solving freezing problems
    • 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
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0432—Temperature; Ambient temperature
    • 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
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04992—Processes for controlling fuel cells or fuel cell systems characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence
    • 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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  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fuel Cell (AREA)
  • Automation & Control Theory (AREA)
  • Artificial Intelligence (AREA)
  • Computing Systems (AREA)
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Abstract

This application discloses a kind of method and devices of battery pile cold-starting.The method of this application includes purging simultaneously to the air chamber of battery pile and hydrogen chamber；Also, the liquid that is passed through in cooling tank in the cooling chamber of battery pile simultaneously opens water pump, and the water pump is connected with the cooling chamber of cooling tank and battery pile；Stop switching off the pump, and purge the cooling chamber of battery pile to after air chamber and hydrogen chamber purging；After stopping purges battery pile cooling chamber, battery pile is freezed；After freezing preset duration, in the state that cooling chamber keeps cavity, battery pile is subjected to cold-starting according to predetermined operating condition.The application solves the problems, such as how to improve the starting performance of fuel cell.

Description

The method and device of battery pile cold-starting
Technical field
This application involves field of new energy technologies, in particular to a kind of method and device of battery pile cold-starting.
Background technique
Fuel cell is increasingly valued by people in recent years as a kind of clean energy resource, especially fuel cell Environmental suitability research, there is difficulty in starting in fuel cell, and the lower battery pile of start-up temperature opens under cryogenic Dynamic more difficult, the start-up temperature start-up technique of Proton Exchange Membrane Fuel Cells rests on about -20 DEG C~-25 DEG C in the world now Under conditions of, however in the environment of some lower temperatures, it not can guarantee the normal starting of fuel cell, influence fuel cell Starting performance.
Summary of the invention
The main purpose of the application is to provide a kind of method and device of battery pile cold-starting, to solve how to improve The problem of starting performance of fuel cell.
To achieve the goals above, according to a first aspect of the present application, a kind of method of battery pile cold-starting is provided.
Method according to the battery pile cold-starting of the application includes:
The air chamber and hydrogen chamber of battery pile are purged simultaneously；Also,
The liquid that is passed through in cooling tank in the cooling chamber of battery pile simultaneously opens water pump, the water pump and cooling tank and electricity The cooling chamber of Chi Dui is connected；
Stop switching off the pump, and purge the cooling chamber of battery pile to after air chamber and hydrogen chamber purging；
After stopping purges battery pile cooling chamber, battery pile is freezed；
After freezing preset duration, in the state that cooling chamber keeps cavity, battery pile is subjected to low temperature according to predetermined operating condition Starting.
Further, the method also includes:
Detect battery pile air chamber exit gas dew-point temperature；
When battery pile air chamber Outlet Gas Temperature reaches the first preset temperature value, stop to battery pile air chamber and hydrogen Air cavity is purged.
Further, described at the same to battery pile air chamber and hydrogen chamber carry out purging include:
By air or nitrogen or inert gas, and be arranged air temperature ranges and gas flow to battery pile air chamber into Row purging；
Battery pile hydrogen chamber is purged by nitrogen or inert gas.
Further, the cooling chamber to battery pile, which purge, includes:
The exchange of liquid gas is carried out to cooling chamber；
Pass through pre-set gas and the temperature of pre-set gas, flow are set and cooling chamber is purged.
Further, it is described to battery pile carry out freezing include:
Battery pile is stablized under default start-up temperature and is freezed, the default start-up temperature is the temperature of battery pile starting.
Further, after the freezing preset duration, in the state that cooling chamber keeps cavity, by battery pile according to predetermined Operating condition carries out cold-starting
After freezing preset duration, loading operation is carried out to battery pile according to predetermined operating condition；Also,
When the temperature of the air chamber exit gas of battery pile reaches the second preset temperature value, by air chamber and hydrogen chamber into The switching of row dry and wet gas；
Water pump is opened, the coolant liquid in cooling tank is switched in the cooling chamber of battery pile.
To achieve the goals above, according to a second aspect of the present application, a kind of device of battery pile cold-starting is provided.
Device according to the battery pile cold-starting of the application includes:
First purge unit, for being purged simultaneously to the air chamber and hydrogen chamber of battery pile；
Opening unit, liquid for being passed through in cooling tank in the cooling chamber of battery pile simultaneously open water pump, the water pump It is connected with the cooling chamber of cooling tank and battery pile；
Second purge unit switches off the pump, and the cooling to battery pile for stopping to after air chamber and hydrogen chamber purging Chamber is purged；
Freezing unit freezes battery pile for stopping after purging to battery pile cooling chamber；
Start unit, after freezing preset duration, in the state that cooling chamber keeps cavity, by battery pile according to predetermined Operating condition carries out cold-starting.
Further, described device further include:
Detection unit, for detecting battery pile air chamber exit gas dew-point temperature；
Stop unit, for stopping to electricity when battery pile air chamber Outlet Gas Temperature reaches the first preset temperature value Pond heap air chamber and hydrogen chamber are purged.
Further, first purge unit includes:
Air chamber purges module, for passing through air or nitrogen or inert gas, and air temperature ranges and gas is arranged Flow purges battery pile air chamber；
Hydrogen chamber purges module, for being purged by nitrogen or inert gas to battery pile hydrogen chamber.
Further, second purge unit includes:
Switching Module, for carrying out the exchange of liquid gas to cooling chamber；
Cooling chamber purges module, carries out for passing through pre-set gas and the temperature of pre-set gas, flow being arranged to cooling chamber Purging.
Further, the freezing unit is also used to:
Battery pile is stablized under default start-up temperature and is freezed, the default start-up temperature is the temperature of battery pile starting.
Further, the start unit includes:
Module is run, after freezing preset duration, loading operation is carried out to battery pile according to predetermined operating condition；
Switching module will be empty for when the temperature of the air chamber exit gas of battery pile reaches the second preset temperature value Air cavity and hydrogen chamber carry out the switching of dry and wet gas；
Module is connected the coolant liquid in cooling tank is switched in the cooling chamber of battery pile for opening water pump.
To achieve the goals above, according to the third aspect of the application, a kind of non-transient computer readable storage is provided Medium, the non-transient computer readable storage medium store computer instruction, and the computer instruction holds the computer The method of battery pile cold-starting described in any one of above-mentioned first aspect of row.
In the embodiment of the present application, the method and device of battery pile cold-starting can be first simultaneously to the air of battery pile Chamber and hydrogen chamber are purged；And the liquid that is passed through in cooling tank in the cooling chamber of battery pile simultaneously opens water pump, water pump with Cooling tank and the cooling chamber of battery pile are connected；Stop switching off the pump, and to after air chamber and hydrogen chamber purging to battery pile Cooling chamber is purged；After stopping purges battery pile cooling chamber, battery pile is freezed；After freezing preset duration, In the state that cooling chamber keeps cavity, battery pile is subjected to cold-starting according to predetermined operating condition.As can be seen that the application in When to battery pile starting, cooling chamber is cavity state, and the thermal capacitance of battery pile entirety can be with when hydraulically full compared in cooling chamber 25%-40% is reduced, and due to fuel cell cold-starting when is more sensitive to the thermal capacitance of battery pile, reduces thermal capacitance To improve the performance of battery pile cold-starting.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present application, so that the application's is other Feature, objects and advantages become more apparent upon.The illustrative examples attached drawing and its explanation of the application is for explaining the application, not Constitute the improper restriction to the application.In the accompanying drawings:
Fig. 1 is according to a kind of method flow diagram of battery pile cold-starting provided by the embodiments of the present application；
Fig. 2 is the method flow diagram according to another battery pile cold-starting provided by the embodiments of the present application；
Fig. 3 is according to a kind of structure chart of battery pile cold-starting provided by the embodiments of the present application；
Fig. 4 is according to a kind of schematic diagram of predetermined operating condition provided by the embodiments of the present application；
Fig. 5 is according to a kind of battery pile provided by the embodiments of the present application according in predetermined operating condition start-up course, battery pile Voltage, electric current and temperature with the variation of load schematic diagram；
Fig. 6 is according to a kind of composition block diagram of the device of battery pile cold-starting provided by the embodiments of the present application；
Fig. 7 is the composition block diagram according to the device of another battery pile cold-starting provided by the embodiments of the present application.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, " Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
According to the embodiment of the present application, a kind of method of battery pile cold-starting is provided, as shown in Figure 1, this method includes Following step:
S101. the air chamber and hydrogen chamber of battery pile are purged simultaneously.
Firstly the need of explanation, the battery pile that the battery pile in the present embodiment is made of fuel cell, battery pile starting Whole process be all by test control system assist complete.Therefore, to the air chamber of battery pile and hydrogen in this step When chamber is purged, the purge gas being passed through is passed through by test control system control.In addition, to air chamber and hydrogen When air cavity is purged, it is also necessary to control the features such as flow, temperature, the duration of purging of gas to guarantee the effect of purging.It is right It is also to be completed by test control system control in the control of the features such as the flow of gas, temperature, the duration of purging.
S102. the liquid that is passed through in cooling tank in the cooling chamber of battery pile simultaneously opens water pump.
In actual application, this step step S101 is implemented simultaneously.Liquid in cooling tank can be with by water pump It is passed into cooling chamber.The liquid being passed through in the step is temperature in a certain range of liquid, is preferably passed through in cooling chamber The temperature range of liquid is 40 DEG C -65 DEG C, and liquid can be deionized water or ethylene glycol or deionized water and ethylene glycol two The mixture of person.
In addition, it is necessary to which explanation, water pump one end are connected with cooling tank, the other end is connected with the cooling chamber of battery pile, cold But the other end of tank is connected with the cooling chamber of battery pile.
S103. stop switching off the pump, and purge the cooling chamber of battery pile to after air chamber and hydrogen chamber purging.
After being purged to air chamber and hydrogen chamber, switch off the pump, and the cooling chamber of battery pile is purged, specifically Purging be to be purged by gas.It needs to close cooling water channel before purging, opens air valve, make to cooling Chamber is purged.Equally, the features such as flow, temperature, the duration of purging of control gas are also required to when purging to guarantee purging Effect.The control of the features such as the duration purged for the flow of gas, temperature is also all to control to complete by test control system 's.
S104. stop after being purged to battery pile cooling chamber, battery pile is freezed.
After completing to the purging of battery pile cooling chamber, battery pile is freezed, specific the present embodiment is by cold Freeze freezing of the cabinet realization to battery pile.Reach in freezer can set the duration of freezing.
S105. after freezing preset duration, in the state that cooling chamber keeps cavity, battery pile is carried out according to predetermined operating condition Cold-starting.
After freezing preset duration to battery pile, implement the cold-starting to battery pile, cooling chamber has to protect on startup Cavity state is held, water pump cannot be opened.Then according to scheduled operating condition carry out cold-starting, specifically, the present embodiment provide it is pre- Determine a kind of specific example of operating condition: 0A (10s)/5A (15s)/7A (5s) 10A (15s)/15A (30s)/25A (90s)/35A (90s)/45A(5s)/55A(5s)/65A(5s)/75A(5s)/85A(5s)/95A(5s)/105A(5s)/114A(120s).In During according to the operation of predetermined operating condition, when the air chamber Outlet Gas Temperature of battery pile reaches 0 DEG C, need to battery pile Reaction gas carries out humidification process, and opening water pump makes the liquid in cooling tank full of cooling chamber.
Usual fuel cell cold-starting is more sensitive to the thermal capacitance of battery pile, and the mechanism of the present embodiment is based in low temperature The whole thermal capacitance of the hydraulically full then battery pile of battery pile cooling chamber is larger in start-up course, if can be by battery in cold-starting Battery pile is discharged in the liquid of heap cooling chamber, then the thermal capacitance of battery pile can be made to reduce 25%-40% or so, therefore can mention significantly High battery pile low-temperature startup performance.
It can be seen from the above description that the method for battery pile cold-starting can be same first in the embodiment of the present application When the air chamber and hydrogen chamber of battery pile are purged；And the liquid in cooling tank is passed through in the cooling chamber of battery pile simultaneously Water pump is opened, water pump is connected with the cooling chamber of cooling tank and battery pile；Stop closing water to after air chamber and hydrogen chamber purging Pump, and the cooling chamber of battery pile is purged；After stopping purges battery pile cooling chamber, battery pile is freezed； After freezing preset duration, in the state that cooling chamber keeps cavity, battery pile is subjected to cold-starting according to predetermined operating condition.It can be with Find out, in the application when starting to battery pile, cooling chamber is cavity state, battery pile when hydraulically full compared in cooling chamber Whole thermal capacitance can reduce 25%-40%, and due to fuel cell cold-starting when is more sensitive to the thermal capacitance of battery pile, because This, which reduces thermal capacitance, can improve the performance of battery pile cold-starting.
As the supplement and refinement of above-described embodiment, the embodiment of the present application provides the side of another battery pile cold-starting Method, as shown in Fig. 2, this method comprises:
S201. the air chamber and hydrogen chamber of battery pile are purged simultaneously.
Specifically, the structure chart of the step combination battery pile cold-starting in the present embodiment is illustrated, as shown in Figure 3. Test control system passes through two accesses respectively and purges to air chamber and hydrogen chamber in Fig. 3, and " air enters " is logical in Fig. 3 Enter the access of air chamber, " hydrogen enters " is the access for being passed through hydrogen chamber.In addition, two accesses pass through valve control respectively, specifically , it in purge, needs to open valve K2, F3, H2, closes valve K1, H1, F2.
Specifically when the air chamber to battery pile purges, it is preferred that the gas of purging is air or nitrogen or lazy Property gas, it is also necessary to air temperature ranges and gas flow are set, battery pile air chamber is purged.Preferably, the present embodiment Middle setting purge gas temperature is 25 DEG C -50 DEG C, and flow is the every batteries of 1.2-4.5slpm/.
When the hydrogen chamber to battery pile purges, it is preferred that the gas of purging is nitrogen or other inert gases.Tool When purging to hydrogen chamber of body, the temperature range of purge gas and the purge gas of gas flow and purging air chamber are set It sets identical.
S202. the liquid that is passed through in cooling tank in the cooling chamber of battery pile simultaneously opens water pump.
Valve F1 is opened, the liquid in cooling tank is passed through in the cooling chamber of battery pile, it is preferred that be passed through in cooling chamber The temperature range of liquid is 40 DEG C -65 DEG C, and liquid can be deionized water or ethylene glycol or deionized water and ethylene glycol two The mixture of person.
S203. battery pile air chamber exit gas dew-point temperature is detected.
Battery pile air chamber exit gas dew-point temperature is detected by moisture detector shown in Fig. 3, this is wet Spending detector can be dew point hygrometer or other equipment that can detecte gas dew point.
S204. when battery pile air chamber Outlet Gas Temperature reaches the first preset temperature value, stop to battery pile air Chamber and hydrogen chamber are purged.
Preferably, the first preset temperature value can choose any temperature value between 25 DEG C -35 DEG C in practical applications.
S205. it switches off the pump, and the cooling chamber of battery pile is purged.
After stopping purges battery pile air chamber and hydrogen chamber, need further to blow the cooling chamber of battery pile It sweeps, specific purge includes:
It switches off the pump, closes valve F1；Then it opens K2 and closes F3, K1, by air chamber access to the liquid in cooling chamber Body is purged.The process of purging is to carry out the exchange of liquid gas to cooling chamber；And passes through pre-set gas and pre-set gas is set Temperature, flow purge cooling chamber.Preferably, pre-set gas is air or nitrogen or inert gas, and temperature is 25 DEG C -60 DEG C, flow is the every batteries of 1.5-2.5slpm/, purge time 1-3min.
S206. stop after being purged to battery pile cooling chamber, it is pre- to stablize freezing to battery pile under default start-up temperature If duration.
Default start-up temperature is set in advance, and specifically can freely be set according to actual demand, such as -10 DEG C, - 20 DEG C, -25 DEG C, -30 DEG C etc..Preferred preset duration is at least more than equal to 12 hours in the present embodiment.
S207. in the state that cooling chamber keeps cavity, battery pile is subjected to cold-starting according to predetermined operating condition.
Corresponding to Fig. 3, the specific implementation process of this step is to open K2, H2/F3 valve, closes K1/H1/F1/F2 valve And water pump, it is passed through the reaction gas (hydrogen and air) not being humidified, battery pile carries out loading cold-starting according to predetermined operating condition. Specifically, the present embodiment provides a kind of specific example of predetermined operating condition: 0A (10s)/5A (15s)/7A (5s) 10A (15s)/ 15A(30s)/25A(90s)/35A(90s)/45A(5s)10A(15s)/15A(30s)/25A(90s)/35A(90s)/45A (5s)/55A(5s)/65A(5s)/75A(5s)/85A(5s)/95A(5s)/105A(5s)/114A(120s).It needs to illustrate It is to be provided with the device of load in test control system, can is battery pile loading, start it according to predetermined operating condition Operation.
In addition, during battery pile loading operation, it is also necessary to detect the temperature of the air chamber exit gas of battery pile Degree, when the temperature of the air chamber exit gas of battery pile reaches the second preset temperature value, air chamber and hydrogen chamber are done Humid gas switching, and water pump is opened, the coolant liquid in cooling tank is switched in the cooling chamber of battery pile.Particular by air What humidification tank and hydrogen humidification tank were realized, preferred humidification degree can be 40%-100%, wherein the second preset temperature value is 0 ℃。
In order to which the method to the battery pile cold-starting in the present embodiment is intuitively illustrated, the present embodiment combination Fig. 3 Structure chart provide specific example and be illustrated:
The fuel cell stack (battery pile) of one 90 section is connected in test macro, firstly, being carried out to battery pile Purging before freezing opens K2, F3, H2 and closes the non-humidifying air that K1, H1, F2 are passed through 650slpm in air chamber, and hydrogen chamber is passed through The nitrogen that is not humidified of 420slpm opens F1, and 60 DEG C of coolant liquid, the air chamber of observation moisture detector detection are led to cooling chamber Exit gas dew-point temperature stops purging when dew-point temperature reaches 28 DEG C.It opens F2 and closes the stalling of F1 water pump, open K2 and close F3, K1 are closed, the coolant liquid inside battery pile cooling chamber is blown in cooling tank in the air that " air enters " end is passed through 300slpm and is blown Sweep 2min.Secondly, closing above-mentioned all valves, reach in freezer temperature is set as -30 DEG C (default start-up temperature) freezing 12h.Third, After battery pile and its accessory freeze 12h under cryogenic, K2, H2, F3 valve are opened, closes K1, H1, F1, F2 valve Door and water pump, battery pile are started according to the predetermined operating condition of attached drawing 4.Air mass flow 920slpm, hydrogen flowing quantity 460slpm, when When the air chamber Outlet Gas Temperature of thermo detector detection reaches 0 DEG C, opens K1, H1, F1 and opens water pump, close K2, F2, H2, Until start operating performance end of run.The coolant temperature of battery pile is 67 DEG C after running EP (end of program).Fig. 5 is according to predetermined work In condition start-up course, voltage, electric current and the temperature of battery pile with load variation schematic diagram.Wherein " vacating temperature " is air Chamber Outlet Gas Temperature, " water enters temperature " are that coolant liquid enters the temperature of cooling chamber, and " water goes out temperature " is coolant liquid from cooling chamber The temperature of outflow.
It should be noted that step shown in the flowchart of the accompanying drawings can be in such as a group of computer-executable instructions It is executed in computer system, although also, logical order is shown in flow charts, and it in some cases, can be with not The sequence being same as herein executes shown or described step.
According to the embodiment of the present application, additionally provide a kind of for implementing the battery pile low temperature of above-mentioned Fig. 1 and Fig. 2 the method The device of starting, as shown in fig. 6, the device includes:
First purge unit 31, for being purged simultaneously to the air chamber and hydrogen chamber of battery pile；
Opening unit 32, liquid for being passed through in cooling tank in the cooling chamber of battery pile simultaneously open water pump, the water Pump is connected with the cooling chamber of cooling tank and battery pile；
Second purge unit 33 switches off the pump, and to after air chamber and hydrogen chamber purging to the cold of battery pile for stopping But chamber is purged；
Freezing unit 34 freezes battery pile for stopping after purging to battery pile cooling chamber；
Start unit 35, after freezing preset duration, in the state that cooling chamber keeps cavity, by battery pile according to pre- Determine operating condition and carries out cold-starting.
It can be seen from the above description that the device of battery pile cold-starting can be same first in the embodiment of the present application When the air chamber and hydrogen chamber of battery pile are purged；And the liquid in cooling tank is passed through in the cooling chamber of battery pile simultaneously Water pump is opened, water pump is connected with the cooling chamber of cooling tank and battery pile；Stop closing water to after air chamber and hydrogen chamber purging Pump, and the cooling chamber of battery pile is purged；After stopping purges battery pile cooling chamber, battery pile is freezed； After freezing preset duration, in the state that cooling chamber keeps cavity, battery pile is subjected to cold-starting according to predetermined operating condition.It can be with Find out, in the application when starting to battery pile, cooling chamber is cavity state, battery pile when hydraulically full compared in cooling chamber Whole thermal capacitance can reduce 25%-40%, and due to fuel cell cold-starting when is more sensitive to the thermal capacitance of battery pile, because This, which reduces thermal capacitance, can improve the performance of battery pile cold-starting.
Further, as shown in fig. 7, described device further include:
Detection unit 36, for detecting battery pile air chamber exit gas dew-point temperature；
Stop unit 37 stops pair for when battery pile air chamber Outlet Gas Temperature reaches the first preset temperature value Battery pile air chamber and hydrogen chamber are purged.
Further, as shown in fig. 7, first purge unit 31 includes:
Air chamber purges module 311, and for passing through air or nitrogen or inert gas, and it is gentle that air temperature ranges are arranged Body flow purges battery pile air chamber；
Hydrogen chamber purges module 312, for being purged by nitrogen or inert gas to battery pile hydrogen chamber.
Further, as shown in fig. 7, second purge unit 33 includes:
Switching Module 331, for carrying out the exchange of liquid gas to cooling chamber；
Cooling chamber purge module 332, for by pre-set gas and be arranged the temperature of pre-set gas, flow to cooling chamber into Row purging.
Further, the freezing unit 34 is also used to:
Battery pile is stablized under default start-up temperature and is freezed, the default start-up temperature is the temperature of battery pile starting.
Further, as shown in fig. 7, the start unit 35 includes:
Module 351 is run, after freezing preset duration, loading operation is carried out to battery pile according to predetermined operating condition；
Switching module 352, for inciting somebody to action when the temperature of the air chamber exit gas of battery pile reaches the second preset temperature value Air chamber and hydrogen chamber carry out the switching of dry and wet gas；
Module 353 is connected the coolant liquid in cooling tank is switched in the cooling chamber of battery pile for opening water pump.
Specifically, each module realizes that the detailed process of its function can be found in embodiment of the method in the device of the embodiment of the present application In associated description, details are not described herein again.
According to the embodiment of the present application, a kind of non-transient computer readable storage medium, the non-transient calculating are additionally provided Machine readable storage medium storing program for executing stores computer instruction, and the computer instruction makes the computer execute battery described in Fig. 1 or Fig. 2 The method of heap cold-starting.
Obviously, those skilled in the art should be understood that each module of above-mentioned the application or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored Be performed by computing device in the storage device, perhaps they are fabricated to each integrated circuit modules or by they In multiple modules or step be fabricated to single integrated circuit module to realize.In this way, the application be not limited to it is any specific Hardware and software combines.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.

Claims (10)

1. a kind of method of battery pile cold-starting, which is characterized in that the described method includes:
The air chamber and hydrogen chamber of battery pile are purged simultaneously；Also,
The liquid that is passed through in cooling tank in the cooling chamber of battery pile simultaneously opens water pump, the water pump and cooling tank and battery pile Cooling chamber be connected；
Stop switching off the pump, and purge the cooling chamber of battery pile to after air chamber and hydrogen chamber purging；
After stopping purges battery pile cooling chamber, battery pile is freezed；
After freezing preset duration, in the state that cooling chamber keeps cavity, battery pile is subjected to cold-starting according to predetermined operating condition.
2. the method for battery pile cold-starting according to claim 1, which is characterized in that the method also includes:
Detect battery pile air chamber exit gas dew-point temperature；
When battery pile air chamber Outlet Gas Temperature reaches the first preset temperature value, stop to battery pile air chamber and hydrogen chamber It is purged.
3. according to right want 2 described in battery pile cold-starting method, which is characterized in that it is described while to battery pile air chamber Carrying out purging with hydrogen chamber includes:
By air or nitrogen or inert gas, and air temperature ranges and gas flow is set, battery pile air chamber is blown It sweeps；
Battery pile hydrogen chamber is purged by nitrogen or inert gas.
4. the method for battery pile cold-starting according to claim 3, which is characterized in that the cooling chamber to battery pile into Row purges
The exchange of liquid gas is carried out to cooling chamber；
Pass through pre-set gas and the temperature of pre-set gas is set and cooling chamber is purged.
5. according to right want 4 described in battery pile cold-starting method, which is characterized in that it is described that freezing packet is carried out to battery pile It includes:
Battery pile is stablized under default start-up temperature and is freezed, the default start-up temperature is the temperature of battery pile starting.
6. according to right want 5 described in battery pile cold-starting method, which is characterized in that after the freezing preset duration, In In the state that cooling chamber keeps cavity, battery pile, which is carried out cold-starting according to predetermined operating condition, includes:
After freezing preset duration, loading operation is carried out to battery pile according to predetermined operating condition；Also,
When the temperature of the air chamber exit gas of battery pile reaches the second preset temperature value, air chamber and hydrogen chamber are done Humid gas switching；
Water pump is opened, the coolant liquid in cooling tank is switched in the cooling chamber of battery pile.
7. a kind of device of battery pile cold-starting, which is characterized in that described device includes:
First purge unit, for being purged simultaneously to the air chamber and hydrogen chamber of battery pile；
Opening unit, liquid for being passed through in cooling tank in the cooling chamber of battery pile simultaneously open water pump, the water pump with it is cold But tank and the cooling chamber of battery pile are connected；
Second purge unit, for stop to air chamber and hydrogen chamber purging after, switch off the pump, and to the cooling chamber of battery pile into Row purging；
Freezing unit freezes battery pile for stopping after purging to battery pile cooling chamber；
Start unit, after freezing preset duration, in the state that cooling chamber keeps cavity, by battery pile according to predetermined operating condition Carry out cold-starting.
8. the device of battery pile cold-starting according to claim 7, which is characterized in that described device further include:
Detection unit, for detecting battery pile air chamber exit gas dew-point temperature；
Stop unit, for stopping to battery pile when battery pile air chamber Outlet Gas Temperature reaches the first preset temperature value Air chamber and hydrogen chamber are purged.
9. according to right want 8 described in battery pile cold-starting device, which is characterized in that first purge unit includes:
Air chamber purges module, for passing through air or nitrogen or inert gas, and air temperature ranges and gas flow is arranged Battery pile air chamber is purged；
Hydrogen chamber purges module, for being purged by nitrogen or inert gas to battery pile hydrogen chamber.
10. a kind of non-transient computer readable storage medium, which is characterized in that the non-transient computer readable storage medium is deposited Store up computer instruction, the computer instruction requires the computer perform claim 1 to described in any one of claim 6 The method of battery pile cold-starting.
CN201910754961.4A 2019-08-15 2019-08-15 Method and device for low-temperature starting of battery stack Active CN110534774B (en)

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CN110957510A (en) * 2019-12-06 2020-04-03 中国第一汽车股份有限公司 Method for testing startup and shutdown of fuel cell stack rack
CN111584902A (en) * 2020-05-26 2020-08-25 上海捷氢科技有限公司 Fuel cell system and purging method thereof
CN113130933A (en) * 2021-03-11 2021-07-16 中国汽车技术研究中心有限公司 PEMFC (proton exchange membrane fuel cell) cold start system with nitrogen-doped and hydrogen-doped purging device and control method
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CN110957510A (en) * 2019-12-06 2020-04-03 中国第一汽车股份有限公司 Method for testing startup and shutdown of fuel cell stack rack
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