WO2020253100A1 - Humidification tank for fuel cell - Google Patents

Humidification tank for fuel cell Download PDF

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Publication number
WO2020253100A1
WO2020253100A1 PCT/CN2019/120564 CN2019120564W WO2020253100A1 WO 2020253100 A1 WO2020253100 A1 WO 2020253100A1 CN 2019120564 W CN2019120564 W CN 2019120564W WO 2020253100 A1 WO2020253100 A1 WO 2020253100A1
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Prior art keywords
tank
liquid level
fuel cell
humidification
water
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PCT/CN2019/120564
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French (fr)
Chinese (zh)
Inventor
刘立锋
周斌
杨留锁
谭世江
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Volt Electronics (suzhou) Co Ltd
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Volt Electronics (suzhou) 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
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04037—Electrical heating
    • 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
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04126—Humidifying
    • 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

Definitions

  • the present invention relates to the technical field of fuel cells, in particular to a humidification tank for fuel cells.
  • the working principle of a fuel cell vehicle is that the hydrogen used as a fuel in the fuel cell of the vehicle undergoes a redox chemical reaction with oxygen in the atmosphere to generate electrical energy to drive the electric motor to work. It has the remarkable characteristics of zero pollution and zero emission. At the same time, compared with pure electric vehicles, it can overcome the shortcomings of short cruising range and long charging time. Therefore, hydrogen fuel cell vehicles are one of the future development trends of automobiles.
  • fuel cells can be divided into proton exchange membrane fuel cells (PEMFC), alkaline fuel cells (AFC), phosphoric acid fuel cells (PAFC), molten carbonate fuel cells (MCFC), solid oxide fuel cells (SOFC) and direct methanol fuel cell (DMFC), etc.
  • PEMFC proton exchange membrane fuel cells
  • AFC alkaline fuel cells
  • PAFC phosphoric acid fuel cells
  • MCFC molten carbonate fuel cells
  • SOFC solid oxide fuel cells
  • DMFC direct methanol fuel cell
  • the patent [201310684259.8] points out that the core component of the proton exchange membrane fuel cell is the membrane electrode (MEA), and the membrane in the membrane electrode conducts protons and blocks cathode and anode gases. Since the membrane conduction of protons requires the participation of water, the method of pre-humidifying the reaction gas is generally used to ensure that the membrane is in a good hydration state.
  • the method for humidifying the reactant gas in the proton exchange membrane fuel cell includes spray humidification, osmotic membrane humidification, enthalpy wheel humidification, bubbling humidification, etc.
  • the bubbling humidification method is due to its simple equipment, simple process and low cost. Such characteristics are more common in laboratory fuel cell test platforms.
  • the degree of humidification can be changed by adjusting the gas flow rate, water temperature, the height of the humidification irrigation water level and the bubble size.
  • the gas flow rate is related to the power and working conditions of the fuel cell stack and is a quantitative value.
  • the bubble size can be used to disperse the bubbles in the humidifier by increasing the porous material, such as glass beads, and increase the evaporation surface area of the water to facilitate better wetting of the reaction gas, which is a quantitative value.
  • Water temperature and liquid level are variable.
  • the dew point temperature is a physical quantity that represents the humidity of a gas. It refers to the temperature at which the gas is cooled to saturation when the water vapor content and pressure do not change, that is, the temperature at which water vapor condensation is just about to form.
  • the humidity of the reactant gas usually has to reach a dew point temperature of 75°C to 80°C. In particular, for high-power fuel cell stacks and full load conditions, the flow of reactant gas is large, and the humidification effect of the humidification tank is poor.
  • the more common method is to increase the humidification stroke of the reaction gas by increasing the length of the humidification tank , So as to improve the humidification capacity of humidification irrigation.
  • this will result in a large humidification tank, which will affect the size of the entire fuel cell engine or test equipment.
  • the existing humidification tank has poor humidification effect and can no longer meet the continuously developing needs of the fuel cell industry.
  • the purpose of the present invention is to provide a fuel cell humidifier that does not need to increase the vertical height of the humidification tank and increases the lateral movement of the bubbles, thereby increasing the humidification stroke of the bubbles and significantly improving the increased capacity. tank. It adopts the following technical solutions:
  • a humidification tank for a fuel cell includes a tank body, the top of the tank body is provided with an air outlet, the bottom of the tank body is provided with an air inlet, and the tank body is provided with a liquid level adjustment assembly and a water temperature adjustment assembly.
  • the liquid level adjusting component and the water temperature adjusting component are both connected to the upper computer, and the liquid level adjusting component and the water temperature adjusting component are respectively used to adjust the liquid level and temperature of the water in the tank;
  • a plurality of isolation plates are arranged in the tank body, and the bottom surface of the isolation board is arranged obliquely, and the isolation board is used to increase the stroke of the air bubbles in the tank body.
  • the liquid level adjustment component includes a water pump and a liquid level sensor, and the water pump and the liquid level sensor are both connected to an upper computer, and the upper computer obtains the liquid level in the tank according to the liquid level sensor, And control the water pump to add water to the tank.
  • the water temperature adjustment assembly includes a temperature sensor and a heating rod, and the temperature sensor and the heating rod are both connected to an upper computer, and the upper computer obtains the temperature of the water in the tank according to the temperature sensor, and The heating rod is controlled to heat the water in the tank.
  • the isolation plate includes a lower V-shaped plate and an upper inverted V-shaped plate, the lower V-shaped plate is provided with a plurality of first vent holes, and the upper inverted V-shaped plate is provided with a plurality of first vents. Two vents, air bubbles enter the tank through the air inlet and move on the bottom surface of the lower V-shaped plate, then rise from the first vent to the bottom surface of the upper inverted V-shaped plate, and The bottom surface of the upper inverted V-shaped plate moves to escape from the second vent hole.
  • the angle between the bottom surface of the lower V-shaped plate and the upper inverted V-shaped plate and the horizontal plane is ⁇ , ⁇ 5°.
  • the diameter of the first vent hole and the second vent hole is D, D ⁇ 8mm.
  • the air inlet is provided with a solenoid valve, and the solenoid valve is connected with the upper computer.
  • the isolation plate is made of 304 stainless steel.
  • the humidification tank for a fuel cell of the present invention humidifies the reaction gas by using a bubbling method, the stroke of the humidified gas is changed from the original linear type to a curve type, the stroke is increased, and the humidification effect is enhanced.
  • the liquid level adjusting component and the water temperature adjusting component By setting the liquid level adjusting component and the water temperature adjusting component, the liquid level and temperature of the water in the tank can be adjusted, thereby realizing the adjustment of the humidifying effect of the humidifying tank.
  • Figure 1 is a schematic diagram of the bubbling humidification method
  • Fig. 2 is a schematic structural diagram of a humidifying tank for a fuel cell in an embodiment of the present invention.
  • the humidification tank for fuel cells includes a tank body 1.
  • the top of the tank body 1 is provided with an air outlet, and the air inlet is provided with a solenoid valve 8.
  • the solenoid valve 8 is connected with the upper computer.
  • the bottom of the tank 1 is provided with an air inlet, and the tank 1 is equipped with a liquid level adjusting component and a water temperature adjusting component.
  • the liquid level adjusting component and the water temperature adjusting component are connected to the upper computer 3, and the liquid level adjusting component and the water temperature adjusting component are used separately To adjust the level and temperature of the water in the tank 1.
  • the liquid level adjustment component includes a water pump 4 and a liquid level sensor 7. Both the water pump 4 and the liquid level sensor 7 are connected to the upper computer 3.
  • the upper computer 3 obtains the liquid level in the tank 1 according to the liquid level sensor 7, and controls the water pump 4 to the tank Add water to body 1.
  • the water temperature adjustment component includes a temperature sensor 6 and a heating rod 5.
  • the temperature sensor 6 and the heating rod 5 are both connected to the upper computer 3.
  • the upper computer 3 obtains the temperature of the water in the tank 1 according to the temperature sensor 6, and controls the heating rod 5 to the tank The water in the body 1 is heated.
  • a number of isolation plates 2 are provided in the tank 1.
  • the number of isolation plates 2 is two, and the bottom surface of the isolation plates 2 is inclined.
  • the isolation plates 2 are used to increase the stroke of bubbles in the tank 1.
  • the isolation plate 2 includes a lower V-shaped plate 21 and an upper inverted V-shaped plate 22.
  • the lower V-shaped plate 21 is provided with a plurality of first vent holes 23, and the upper inverted V-shaped plate 22 is provided with a plurality of second The air vent 24, the air bubbles enter the tank 1 from the air inlet and move on the bottom surface of the lower V-shaped plate 21, then rise from the first vent hole 23 to the bottom surface of the upper inverted V-shaped plate 22, and invert the V-shaped plate 22 above The bottom surface moves to run out from the second vent 24.
  • the isolation plate is made of 304 stainless steel.
  • the angle between the bottom surface of the lower V-shaped plate and the upper inverted V-shaped plate and the horizontal plane is ⁇ , preferably, ⁇ 5°.
  • the diameter of the first vent hole 23 and the second vent hole 24 cannot be too small.
  • the upper computer 3 determines the liquid level and water temperature in the tank 1 by querying the calibration database according to the set humidity and gas flow.
  • the upper computer 3 sends signals to the water pump 4 and the heating rod 5, and the water pump 4 and the heating rod 5 work.
  • the temperature sensor 6 and the liquid level sensor 7 feed back water temperature and liquid level signals to the upper computer 3, and the upper computer 3 uses PID algorithm to ensure that the liquid level and water temperature in the tank 1 reach the set value.
  • the upper computer 3 sends a switch signal to the solenoid valve 8.
  • the solenoid valve 8 opens, and the air inlet starts to enter the tank 1 to humidify the reaction gas.
  • the reaction gas stroke As shown in the bubble stroke in Fig. 2, the gas passing through the partition plate 2 is sufficiently humidified.
  • the humidification tank for a fuel cell of the present invention humidifies the reaction gas by using a bubbling method, the stroke of the humidified gas is changed from the original linear type to a curve type, the stroke is increased, and the humidification effect is enhanced.
  • the liquid level adjusting component and the water temperature adjusting component By setting the liquid level adjusting component and the water temperature adjusting component, the liquid level and temperature of the water in the tank can be adjusted, thereby realizing the adjustment of the humidifying effect of the humidifying tank.

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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

Disclosed by the present invention is a humidification tank for a fuel cell, which comprises a tank body; an inner top part of the tank body is provided with an air outlet, a bottom part of the tank body is provided with an air inlet, and a liquid level adjusting assembly and a water temperature adjusting assembly are provided within the tank body; the liquid level adjusting assembly and the water temperature adjusting assembly are both connected to an upper computer; the liquid level adjusting assembly and the water temperature adjusting assembly are used to adjust the liquid level and temperature of water within the tank body, respectively; multiple isolation plates are provided within the tank body, bottom surfaces of the isolation plates are obliquely disposed, and the isolation plates are used to increase the trajectory of air bubbles within the tank body. The humidification tank for a fuel cell of the present invention uses a bubbling method to humidify a reaction gas, and the trajectory of a humidified gas is changed from an original straight line to a curved line, thus the trajectory is increased, and the humidification effect is enhanced. By means of providing the liquid level adjusting assembly and the water temperature adjusting assembly, the liquid level and temperature of water within the tank body may be adjusted, thereby adjusting the humidification effect of the humidification tank.

Description

一种燃料电池用增湿罐Humidification tank for fuel cell 技术领域Technical field

本发明涉及燃料电池技术领域，特别涉及一种燃料电池用增湿罐。The present invention relates to the technical field of fuel cells, in particular to a humidification tank for fuel cells.

背景技术Background technique

燃料电池汽车的工作原理是，作为燃料的氢在汽车搭载的燃料电池中，与大气中的氧气发生氧化还原化学反应，产生出电能来带动电动机工作。它具有零污染，零排放的显著特征。同时，相较于纯电动汽车，它又能克服续航里程短，充电时间长的缺点。因此，氢燃料电池汽车是未来汽车发展的趋势之一。The working principle of a fuel cell vehicle is that the hydrogen used as a fuel in the fuel cell of the vehicle undergoes a redox chemical reaction with oxygen in the atmosphere to generate electrical energy to drive the electric motor to work. It has the remarkable characteristics of zero pollution and zero emission. At the same time, compared with pure electric vehicles, it can overcome the shortcomings of short cruising range and long charging time. Therefore, hydrogen fuel cell vehicles are one of the future development trends of automobiles.

根据电解质种类的不同，燃料电池可以分为质子交换膜燃料电池(PEMFC)、碱性燃料电池(AFC)、磷酸燃料电池(PAFC)、熔融碳酸盐燃料电池(MCFC)、固体氧化物燃料电池(SOFC)及直接甲醇燃料电池(DMFC)等。其中，质子交换膜燃料电池运用最广泛。According to the different types of electrolytes, fuel cells can be divided into proton exchange membrane fuel cells (PEMFC), alkaline fuel cells (AFC), phosphoric acid fuel cells (PAFC), molten carbonate fuel cells (MCFC), solid oxide fuel cells (SOFC) and direct methanol fuel cell (DMFC), etc. Among them, the proton exchange membrane fuel cell is the most widely used.

专利【201310684259.8】指出，质子交换膜燃料电池中的核心部件是膜电极(MEA)，膜电极中的膜的作用是传导质子、阻隔阴阳极气体。由于膜传导质子需要水的参与，一般采用对反应气预增湿方法，保证膜处于良好的水合状态。质子交换膜燃料电池中反应气增湿方法包括喷淋增湿、渗透膜增湿、焓轮增湿、鼓泡增湿等，其中鼓泡增湿法由于其所用设备简单、工艺简便、成本低廉等特点，在实验室燃料电池测试平台中较为常见。The patent [201310684259.8] points out that the core component of the proton exchange membrane fuel cell is the membrane electrode (MEA), and the membrane in the membrane electrode conducts protons and blocks cathode and anode gases. Since the membrane conduction of protons requires the participation of water, the method of pre-humidifying the reaction gas is generally used to ensure that the membrane is in a good hydration state. The method for humidifying the reactant gas in the proton exchange membrane fuel cell includes spray humidification, osmotic membrane humidification, enthalpy wheel humidification, bubbling humidification, etc. The bubbling humidification method is due to its simple equipment, simple process and low cost. Such characteristics are more common in laboratory fuel cell test platforms.

专利【201310684259.8】指出，鼓泡增湿法示意图如图1所示。在燃料电池运行前，首先往增湿器中添加合适的水量，电池运行时反应气自下而上进入增湿器，以鼓泡的方式得到润湿，然后再通入燃料电池发生电化学反应。The patent [201310684259.8] points out that the schematic diagram of the bubbling humidification method is shown in Figure 1. Before the operation of the fuel cell, first add an appropriate amount of water to the humidifier. When the battery is running, the reactant gas enters the humidifier from bottom to top, is wetted by bubbling, and then passes into the fuel cell for electrochemical reaction. .

通过调节气体流量、水温、增湿灌水位的液面高度以及气泡大小可改变加湿的程度。气体流量与燃料电池堆的功率以及工况有关，为定量值。气泡大小可以通过增加多孔物质，如玻璃珠，用于分散增湿器内的气泡，增大水的蒸发表面积，便于反应气更好的润湿，为定量值。水温以及液面高度为变量。The degree of humidification can be changed by adjusting the gas flow rate, water temperature, the height of the humidification irrigation water level and the bubble size. The gas flow rate is related to the power and working conditions of the fuel cell stack and is a quantitative value. The bubble size can be used to disperse the bubbles in the humidifier by increasing the porous material, such as glass beads, and increase the evaporation surface area of the water to facilitate better wetting of the reaction gas, which is a quantitative value. Water temperature and liquid level are variable.

露点温度是表示气体湿度的一个物理量，是指气体在水汽含量和气压都不改变的条件下，冷却到饱和时的温度，即刚要形成水汽凝结时的温度。为了降低燃料电池电堆的内阻，通常反应气体的湿度要达到75℃～80℃的露点温度。特别地，针对大功率燃料电池堆以及满负载的工况，反应气体流量很大，增湿罐的增湿效果很差。The dew point temperature is a physical quantity that represents the humidity of a gas. It refers to the temperature at which the gas is cooled to saturation when the water vapor content and pressure do not change, that is, the temperature at which water vapor condensation is just about to form. In order to reduce the internal resistance of the fuel cell stack, the humidity of the reactant gas usually has to reach a dew point temperature of 75°C to 80°C. In particular, for high-power fuel cell stacks and full load conditions, the flow of reactant gas is large, and the humidification effect of the humidification tank is poor.

在不改变增湿方法的前提下，为满足大功率燃料电池堆及满功率负载情况下对反应气体湿度的要求，较为常用的方法是通过增加增湿灌的长度从而增加反应气体的增湿行程，从而达到提高增湿灌增湿能力。然而，这样会导致增湿罐尺寸很大，从而影响整个燃料电池发动机或者测试设备的尺寸。Without changing the humidification method, in order to meet the requirements of high-power fuel cell stack and full power load on the humidity of the reaction gas, the more common method is to increase the humidification stroke of the reaction gas by increasing the length of the humidification tank , So as to improve the humidification capacity of humidification irrigation. However, this will result in a large humidification tank, which will affect the size of the entire fuel cell engine or test equipment.

现有的增湿罐增湿效果差，已不能满足燃料电池行业不断发展的需求。The existing humidification tank has poor humidification effect and can no longer meet the continuously developing needs of the fuel cell industry.

发明内容Summary of the invention

针对现有技术的不足，本发明目的在于提供一种不需增大增湿罐纵向高度尺寸，通过增加气泡的横向运动，从而增加气泡的增湿行程，显著提升增加能力的燃料电池用增湿罐。其采用如下技术方案：In view of the shortcomings of the prior art, the purpose of the present invention is to provide a fuel cell humidifier that does not need to increase the vertical height of the humidification tank and increases the lateral movement of the bubbles, thereby increasing the humidification stroke of the bubbles and significantly improving the increased capacity. tank. It adopts the following technical solutions:

一种燃料电池用增湿罐，包括罐体，所述罐体内顶部设有出气口，所述罐体底部设有进气口，所述罐体内设有液位调节组件和水温调节组件，所述液位调节组件和水温调节组件均与上位机连接，所述液位调节组件和水温调节组件分别用于调节罐体内的水的液位和温度；A humidification tank for a fuel cell includes a tank body, the top of the tank body is provided with an air outlet, the bottom of the tank body is provided with an air inlet, and the tank body is provided with a liquid level adjustment assembly and a water temperature adjustment assembly. The liquid level adjusting component and the water temperature adjusting component are both connected to the upper computer, and the liquid level adjusting component and the water temperature adjusting component are respectively used to adjust the liquid level and temperature of the water in the tank;

所述罐体内设有若干隔离板，所述隔离板的底面倾斜设置，所述隔离板用于加大气泡在罐体内的行程。A plurality of isolation plates are arranged in the tank body, and the bottom surface of the isolation board is arranged obliquely, and the isolation board is used to increase the stroke of the air bubbles in the tank body.

作为本发明的进一步改进，所述液位调节组件包括水泵和液位传感器，所述水泵和液位传感器均与上位机连接，所述上位机根据所述液位传感器获取罐体内的液位，并控制水泵向罐体内加水。As a further improvement of the present invention, the liquid level adjustment component includes a water pump and a liquid level sensor, and the water pump and the liquid level sensor are both connected to an upper computer, and the upper computer obtains the liquid level in the tank according to the liquid level sensor, And control the water pump to add water to the tank.

作为本发明的进一步改进，所述水温调节组件包括温度传感器和加热棒，所述温度传感器和加热棒均与上位机连接，所述上位机根据所述温度传感器获取罐体内的水的温度，并控制加热棒对罐体内的水进行加热。As a further improvement of the present invention, the water temperature adjustment assembly includes a temperature sensor and a heating rod, and the temperature sensor and the heating rod are both connected to an upper computer, and the upper computer obtains the temperature of the water in the tank according to the temperature sensor, and The heating rod is controlled to heat the water in the tank.

作为本发明的进一步改进，所述隔离板包括下方V型板和上方倒V型板，所述下方V型板上设有若干第一通气孔，所述上方倒V型板上设有若干第二通 气孔，气泡由所述进气口进入所述罐体并在所述下方V型板的底面运动，接着从所述第一通气孔上升至所述上方倒V型板的底面，并在所述上方倒V型板的底面运动至从所述第二通气孔跑出。As a further improvement of the present invention, the isolation plate includes a lower V-shaped plate and an upper inverted V-shaped plate, the lower V-shaped plate is provided with a plurality of first vent holes, and the upper inverted V-shaped plate is provided with a plurality of first vents. Two vents, air bubbles enter the tank through the air inlet and move on the bottom surface of the lower V-shaped plate, then rise from the first vent to the bottom surface of the upper inverted V-shaped plate, and The bottom surface of the upper inverted V-shaped plate moves to escape from the second vent hole.

作为本发明的进一步改进，所述下方V型板和上方倒V型板的底面与水平面的角度为θ，θ≥5°。As a further improvement of the present invention, the angle between the bottom surface of the lower V-shaped plate and the upper inverted V-shaped plate and the horizontal plane is θ, θ≥5°.

作为本发明的进一步改进，所述第一通气孔和第二通气孔的直径为D，D≥8mm。As a further improvement of the present invention, the diameter of the first vent hole and the second vent hole is D, D≥8mm.

作为本发明的进一步改进，D＝10mm。As a further improvement of the present invention, D=10mm.

作为本发明的进一步改进，所述进气口设有电磁阀，所述电磁阀与上位机连接。As a further improvement of the present invention, the air inlet is provided with a solenoid valve, and the solenoid valve is connected with the upper computer.

作为本发明的进一步改进，所述隔离板为304不锈钢材质。As a further improvement of the present invention, the isolation plate is made of 304 stainless steel.

本发明的有益效果：The beneficial effects of the present invention:

本发明的燃料电池用增湿罐运用鼓泡法对反应气体进行增湿，增湿气体的行程由原先的直线型改为曲线型，行程增加，增湿效果增强。The humidification tank for a fuel cell of the present invention humidifies the reaction gas by using a bubbling method, the stroke of the humidified gas is changed from the original linear type to a curve type, the stroke is increased, and the humidification effect is enhanced.

通过设置液位调节组件和水温调节组件，可以调节罐体内的水的液位和温度，从而实现对增湿罐的增湿效果的调节。By setting the liquid level adjusting component and the water temperature adjusting component, the liquid level and temperature of the water in the tank can be adjusted, thereby realizing the adjustment of the humidifying effect of the humidifying tank.

上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，而可依照说明书的内容予以实施，并且为了让本发明的上述和其他目的、特征和优点能够更明显易懂，以下特举较佳实施例，并配合附图，详细说明如下。The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, it can be implemented in accordance with the content of the specification, and to make the above and other objectives, features and advantages of the present invention more obvious and understandable. In the following, the preferred embodiments are cited in conjunction with the drawings, and the detailed description is as follows.

附图说明Description of the drawings

图1是鼓泡增湿法的示意图；Figure 1 is a schematic diagram of the bubbling humidification method;

图2是本发明实施例中燃料电池用增湿罐的结构示意图。Fig. 2 is a schematic structural diagram of a humidifying tank for a fuel cell in an embodiment of the present invention.

标记说明：1、罐体；2、隔离板；21、下方V型板；22、上方倒V型板；23、第一通气孔；24、第二通气孔；3、上位机；4、水泵；5、加热棒；6、温度传感器；7、液位传感器；8、电磁阀。Marking description: 1. Tank body; 2. Isolation plate; 21. Lower V-shaped plate; 22. Upside down V-shaped plate; 23. First vent; 24. Second vent; 3. Upper computer; 4. Water pump ; 5. Heating rod; 6. Temperature sensor; 7. Liquid level sensor; 8. Solenoid valve.

具体实施方式Detailed ways

下面结合附图和具体实施例对本发明作进一步说明，以使本领域的技术人员可以更好地理解本发明并能予以实施，但所举实施例不作为对本发明的限定。The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention, but the cited embodiments are not intended to limit the present invention.

如图2所示，为本发明实施例中的燃料电池用增湿罐，该燃料电池用增湿罐包括罐体1，罐体1内顶部设有出气口，进气口设有电磁阀8，电磁阀8与上位机连接。罐体1底部设有进气口，罐体1内设有液位调节组件和水温调节组件，液位调节组件和水温调节组件均与上位机3连接，液位调节组件和水温调节组件分别用于调节罐体1内的水的液位和温度。As shown in Figure 2, it is a humidification tank for fuel cells in an embodiment of the present invention. The humidification tank for fuel cells includes a tank body 1. The top of the tank body 1 is provided with an air outlet, and the air inlet is provided with a solenoid valve 8. , The solenoid valve 8 is connected with the upper computer. The bottom of the tank 1 is provided with an air inlet, and the tank 1 is equipped with a liquid level adjusting component and a water temperature adjusting component. The liquid level adjusting component and the water temperature adjusting component are connected to the upper computer 3, and the liquid level adjusting component and the water temperature adjusting component are used separately To adjust the level and temperature of the water in the tank 1.

液位调节组件包括水泵4和液位传感器7，水泵4和液位传感器7均与上位机3连接，上位机3根据液位传感器7获取罐体1内的液位，并控制水泵4向罐体1内加水。The liquid level adjustment component includes a water pump 4 and a liquid level sensor 7. Both the water pump 4 and the liquid level sensor 7 are connected to the upper computer 3. The upper computer 3 obtains the liquid level in the tank 1 according to the liquid level sensor 7, and controls the water pump 4 to the tank Add water to body 1.

水温调节组件包括温度传感器6和加热棒5，温度传感器6和加热棒5均与上位机3连接，上位机3根据温度传感器6获取罐体1内的水的温度，并控制加热棒5对罐体1内的水进行加热。The water temperature adjustment component includes a temperature sensor 6 and a heating rod 5. The temperature sensor 6 and the heating rod 5 are both connected to the upper computer 3. The upper computer 3 obtains the temperature of the water in the tank 1 according to the temperature sensor 6, and controls the heating rod 5 to the tank The water in the body 1 is heated.

罐体1内设有若干隔离板2，在本实施例中，隔离板2的数量为二，隔离板2的底面倾斜设置，隔离板2用于加大气泡在罐体1内的行程。在本实施例中，隔离板2包括下方V型板21和上方倒V型板22，下方V型板21上设有若干第一通气孔23，上方倒V型板22上设有若干第二通气孔24，气泡由进气口进入罐体1并在下方V型板21的底面运动，接着从第一通气孔23上升至上方倒V型板22的底面，并在上方倒V型板22的底面运动至从第二通气孔24跑出。优选的，隔离板为304不锈钢材质。A number of isolation plates 2 are provided in the tank 1. In this embodiment, the number of isolation plates 2 is two, and the bottom surface of the isolation plates 2 is inclined. The isolation plates 2 are used to increase the stroke of bubbles in the tank 1. In this embodiment, the isolation plate 2 includes a lower V-shaped plate 21 and an upper inverted V-shaped plate 22. The lower V-shaped plate 21 is provided with a plurality of first vent holes 23, and the upper inverted V-shaped plate 22 is provided with a plurality of second The air vent 24, the air bubbles enter the tank 1 from the air inlet and move on the bottom surface of the lower V-shaped plate 21, then rise from the first vent hole 23 to the bottom surface of the upper inverted V-shaped plate 22, and invert the V-shaped plate 22 above The bottom surface moves to run out from the second vent 24. Preferably, the isolation plate is made of 304 stainless steel.

在本实施例中，下方V型板和上方倒V型板的底面与水平面的角度为θ，优选的，θ≥5°。In this embodiment, the angle between the bottom surface of the lower V-shaped plate and the upper inverted V-shaped plate and the horizontal plane is θ, preferably, θ≥5°.

当气体流量过大时，气泡容易在第一通气孔23和第二通气孔24处聚集，变成大气泡，影响增湿效果。因此，第一通气孔23和第二通气孔24的直径不能太小。在本实施例中，第一通气孔23和第二通气孔24的直径为D，D≥8mm。优选的，D＝10mm。When the gas flow rate is too large, bubbles tend to accumulate at the first vent hole 23 and the second vent hole 24 and become large bubbles, which affect the humidification effect. Therefore, the diameter of the first vent hole 23 and the second vent hole 24 cannot be too small. In this embodiment, the diameter of the first vent hole 23 and the second vent hole 24 is D, D≥8mm. Preferably, D=10mm.

工作时，上位机3根据设定的湿度以及气体流量，通过查询标定数据库确定罐体1内的液位以及水温。上位机3发送信号给水泵4与加热棒5，水泵4与加热棒5工作。温度传感器6及液位传感器7反馈水温以及液位信号给上位机3，上位机3通过PID算法保证罐体1内液位以及水温达到设定值。When working, the upper computer 3 determines the liquid level and water temperature in the tank 1 by querying the calibration database according to the set humidity and gas flow. The upper computer 3 sends signals to the water pump 4 and the heating rod 5, and the water pump 4 and the heating rod 5 work. The temperature sensor 6 and the liquid level sensor 7 feed back water temperature and liquid level signals to the upper computer 3, and the upper computer 3 uses PID algorithm to ensure that the liquid level and water temperature in the tank 1 reach the set value.

当液位及水温达到设定值时，上位机3发送开关信号给电磁阀8，电磁阀8打开，进气端开始向罐体1内进气，对反应气体进行增湿，反应气体的行程如图2中气泡行程所示，通过隔离板2气体得到充分的加湿。When the liquid level and water temperature reach the set value, the upper computer 3 sends a switch signal to the solenoid valve 8. The solenoid valve 8 opens, and the air inlet starts to enter the tank 1 to humidify the reaction gas. The reaction gas stroke As shown in the bubble stroke in Fig. 2, the gas passing through the partition plate 2 is sufficiently humidified.

本发明的燃料电池用增湿罐运用鼓泡法对反应气体进行增湿，增湿气体的行程由原先的直线型改为曲线型，行程增加，增湿效果增强。The humidification tank for a fuel cell of the present invention humidifies the reaction gas by using a bubbling method, the stroke of the humidified gas is changed from the original linear type to a curve type, the stroke is increased, and the humidification effect is enhanced.

通过设置液位调节组件和水温调节组件，可以调节罐体内的水的液位和温度，从而实现对增湿罐的增湿效果的调节。By setting the liquid level adjusting component and the water temperature adjusting component, the liquid level and temperature of the water in the tank can be adjusted, thereby realizing the adjustment of the humidifying effect of the humidifying tank.

以上实施例仅是为充分说明本发明而所举的较佳的实施例，本发明的保护范围不限于此。本技术领域的技术人员在本发明基础上所作的等同替代或变换，均在本发明的保护范围之内。本发明的保护范围以权利要求书为准。The above embodiments are only preferred embodiments for fully explaining the present invention, and the protection scope of the present invention is not limited thereto. The equivalent substitutions or changes made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims (9)

一种燃料电池用增湿罐，其特征在于，包括罐体，所述罐体内顶部设有出气口，所述罐体底部设有进气口，所述罐体内设有液位调节组件和水温调节组件，所述液位调节组件和水温调节组件均与上位机连接，所述液位调节组件和水温调节组件分别用于调节罐体内的水的液位和温度；A humidification tank for a fuel cell, which is characterized by comprising a tank body, the top of the tank body is provided with an air outlet, the bottom of the tank body is provided with an air inlet, and the tank body is provided with a liquid level adjustment component and a water temperature An adjustment component, the liquid level adjustment component and the water temperature adjustment component are both connected to the upper computer, and the liquid level adjustment component and the water temperature adjustment component are respectively used to adjust the liquid level and temperature of the water in the tank; 所述罐体内设有若干隔离板，所述隔离板的底面倾斜设置，所述隔离板用于加大气泡在罐体内的行程。A plurality of isolation plates are arranged in the tank body, and the bottom surface of the isolation board is arranged obliquely, and the isolation board is used to increase the stroke of the air bubbles in the tank body. 如权利要求1所述的燃料电池用增湿罐，其特征在于，所述液位调节组件包括水泵和液位传感器，所述水泵和液位传感器均与上位机连接，所述上位机根据所述液位传感器获取罐体内的液位，并控制水泵向罐体内加水。The fuel cell humidification tank according to claim 1, wherein the liquid level adjustment assembly includes a water pump and a liquid level sensor, and the water pump and the liquid level sensor are both connected to an upper computer, and the upper computer is The liquid level sensor acquires the liquid level in the tank and controls the water pump to add water to the tank. 如权利要求1所述的燃料电池用增湿罐，其特征在于，所述水温调节组件包括温度传感器和加热棒，所述温度传感器和加热棒均与上位机连接，所述上位机根据所述温度传感器获取罐体内的水的温度，并控制加热棒对罐体内的水进行加热。The fuel cell humidification tank according to claim 1, wherein the water temperature adjustment assembly includes a temperature sensor and a heating rod, and the temperature sensor and the heating rod are both connected to a host computer, and the host computer is based on the The temperature sensor obtains the temperature of the water in the tank and controls the heating rod to heat the water in the tank. 如权利要求1所述的燃料电池用增湿罐，其特征在于，所述隔离板包括下方V型板和上方倒V型板，所述下方V型板上设有若干第一通气孔，所述上方倒V型板上设有若干第二通气孔，气泡由所述进气口进入所述罐体并在所述下方V型板的底面运动，接着从所述第一通气孔上升至所述上方倒V型板的底面，并在所述上方倒V型板的底面运动至从所述第二通气孔跑出。The fuel cell humidification tank according to claim 1, wherein the isolation plate includes a lower V-shaped plate and an upper inverted V-shaped plate, and the lower V-shaped plate is provided with a plurality of first vent holes, so The upper inverted V-shaped plate is provided with a number of second vent holes. Air bubbles enter the tank from the air inlet and move on the bottom surface of the lower V-shaped plate, and then rise from the first vent to the bottom The bottom surface of the upper inverted V-shaped plate is moved on the bottom surface of the upper inverted V-shaped plate to escape from the second vent. 如权利要求4所述的燃料电池用增湿罐，其特征在于，所述下方V型板和上方倒V型板的底面与水平面的角度为θ，θ≥5°。The humidification tank for a fuel cell according to claim 4, wherein the angle between the bottom surface of the lower V-shaped plate and the upper inverted V-shaped plate and the horizontal plane is θ, θ≥5°. 如权利要求4所述的燃料电池用增湿罐，其特征在于，所述第一通气孔和第二通气孔的直径为D，D≥8mm。The humidification tank for fuel cell according to claim 4, wherein the diameter of the first vent hole and the second vent hole is D, D≥8mm. 如权利要求6所述的燃料电池用增湿罐，其特征在于，D＝10mm。The humidification tank for a fuel cell according to claim 6, wherein D = 10 mm. 如权利要求1所述的燃料电池用增湿罐，其特征在于，所述进气口设有电磁阀，所述电磁阀与上位机连接。8. The humidification tank for fuel cell according to claim 1, wherein the air inlet is provided with a solenoid valve, and the solenoid valve is connected to a host computer. 如权利要求1所述的燃料电池用增湿罐，其特征在于，所述隔离板为304不锈钢材质。8. The humidifying tank for fuel cell according to claim 1, wherein the separator plate is made of 304 stainless steel.
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