Gas humidifying device

Abstract

The utility model discloses a gas humidifying device which comprises a humidifying container suitable for being communicated with a gas supply device through a first pipeline and suitable for being communicated with a fuel cell through a second pipeline; the spraying module comprises a driving part and a control part, wherein the driving part is communicated with the humidifying container to form a spraying circulation loop; the liquid supplementing module comprises a first temperature control assembly and a humidifying container, the first temperature control assembly is used for being connected with a liquid supply device to form a liquid supply flow path, and the first temperature control assembly is used for regulating and controlling the liquid temperature of the liquid supply flow path. Therefore, the liquid supplementing module comprises the first temperature control assembly, the liquid temperature of the liquid supply flow path can be regulated and controlled through the first temperature control assembly, so that the temperature of the liquid supplied to the humidifying container is consistent with the temperature of the original liquid in the humidifying container, and the temperature fluctuation amplitude of the liquid in the humidifying container during water supplementing can be reduced; the dew point temperature of the gas can be stable, and the service life of the fuel cell or the test accuracy of the fuel cell can be improved.

Description

Technical Field

[0001] The utility model relates to the field of fuel cells, in particular to a gas humidifying device. Background Art

[0002] In related technologies, fuel cells are relatively sensitive to intake air humidity. Currently, the intake air humidity of the fuel cell is controlled by controlling the gas dew point temperature to increase the service life of the fuel cell or improve the accuracy of the fuel cell performance test. However, the existing gas humidification device is not designed reasonably and cannot stabilize the gas dew point temperature. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of the present invention is to provide a gas humidification device that can reduce the amplitude of temperature fluctuations of the liquid in the humidification container during water replenishment, thereby stabilizing the gas dew point temperature, thereby facilitating the extension of the fuel cell's service life and improving the accuracy of fuel cell testing.

[0004] According to the gas humidifying device of the present invention, the gas humidifying device is used to control the intake humidity of the fuel cell, and the gas humidifying device includes: a humidifying container, in which liquid is stored, the humidifying container is suitable for being connected to the gas supply device through a first pipeline, and is suitable for being connected to the fuel cell through a second pipeline; a spray module, the spray module includes: a driving member, the driving member is connected to the humidifying container to form a spray circulation loop; a liquid replenishing module, the liquid replenishing module includes a first temperature control component, the humidifying container and the first temperature control component are used to be connected to the liquid supply device to form a liquid supply flow path, the first temperature control component is used to regulate the liquid temperature of the liquid in the liquid supply flow path; a controller and a first temperature sensor component connected to the controller, the first temperature sensor component is used to detect the liquid temperature in the liquid supply flow path and the humidifying container, and the controller is used to control the first temperature control component according to the liquid temperature in the liquid supply flow path and the liquid in the humidifying container.

[0005] According to the gas humidification device of the present invention, by making the liquid replenishing module include a first temperature control component, the liquid temperature of the liquid supply flow path can be regulated by the first temperature control component so that the temperature of the liquid supplied to the humidification container is consistent with the temperature of the original liquid in the humidification container, thereby reducing the amplitude of the liquid temperature fluctuation in the humidification container during water replenishment, and stabilizing the gas dew point temperature, which is beneficial to increasing the service life of the fuel cell or improving the accuracy of the fuel cell test.

[0006] In some examples of the present invention, the first temperature control component includes: a first heat exchanger, and the first heat exchanger is connected to the liquid supply device and the humidification container through a third pipeline and a fourth pipeline respectively.

[0007] In some examples of the present invention, the first temperature control component further includes: a first cooling water supply component, and the first cooling water supply component is connected to the first heat exchanger to form a first cooling water supply loop.

[0008] In some examples of the present invention, the first temperature control component further includes: a first heater, the first heater is connected to the third pipeline and is connected to the liquid supply device through a fifth pipeline.

[0009] In some examples of the present invention, the liquid supply flow path is provided with a first throttle valve, which is located downstream of the first temperature control component. The first throttle valve is used to control the amount of liquid entering the humidification container so that the consumption rate and replenishment rate of the liquid in the humidification container are consistent.

[0010] In some examples of the present invention, the fourth pipeline is provided with a flow meter, and the flow meter is located downstream of the first throttle valve.

[0011] In some examples of the present invention, the spray module also includes: a second temperature control component, the driving component, the humidification container, and the second temperature control component are connected to form the spray circulation loop, and the second temperature control component is used to regulate the liquid temperature in the spray circulation loop; the gas humidification device also includes: a second temperature sensor component, the second temperature sensor component is used to detect the liquid temperature in the spray circulation loop, and the controller is used to control the second temperature control component according to the spray circulation loop and the liquid temperature in the humidification container.

[0012] In some examples of the present invention, the second temperature control component includes: a second heat exchanger, and the spray module further includes: a second cooling water supply component, and the second cooling water supply component is connected to the second heat exchanger to form a second cooling water supply circuit.

[0013] In some examples of the present invention, the second temperature control component further includes: a second heater, and the second heater is connected between the driving member and the second heat exchanger through a pipeline.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 It is a schematic diagram of the structure of the gas humidification device according to an embodiment of the present invention.

[0017] Reference numerals:

[0018] Gas humidification device 100; fuel cell 99;

[0019] Humidification container 1; gas supply device 10;

[0020] First pipeline 11; second pipeline 12; third pipeline 13; fourth pipeline 14; fifth pipeline 15; sixth pipeline 16; seventh pipeline 17; eighth pipeline 18;

[0021] Spray module 2; spray circulation loop 20; drive element 21; second temperature control component 22; second heat exchanger 221; third sub-channel 2211; fourth sub-channel 2212; second heater 222;

[0022] Liquid replenishing module 3; liquid supply flow path 30; first temperature control component 31; first heat exchanger 311; first sub-flow channel 3111; second sub-flow channel 3112;

[0023] First heater 312; Liquid supply device 32;

[0024] A first temperature sensor 41; a second temperature sensor 42; a third temperature sensor 43; a fourth temperature sensor 44; a fifth temperature sensor 45; a sixth temperature sensor 46; and a seventh temperature sensor 47;

[0025] First throttle valve 51; second throttle valve 52; third throttle valve 53; flow meter 6;

[0026] First cooling water supply assembly 7; first cooling water supply circuit 70; first cooling water supply end 71; first cooling water outflow end 72;

[0027] Second cooling water supply assembly 8; second cooling water supply circuit 80; second cooling water supply end 81; second cooling water outflow end 82;

[0028] Liquid level gauge 9. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] Reference below Figure 1 A gas humidifying device 100 for a vehicle according to an embodiment of the present invention is described. The gas humidifying device 100 is used to control the humidity of intake air of a fuel cell 99 .

[0031] like Figure 1 As shown, the gas humidifying device 100 according to an embodiment of the present invention includes: a humidifying container 1 , a spraying module 2 and a liquid replenishing module 3 .

[0032] The gas humidification device 100 includes a humidification container 1 containing liquid, adapted to communicate with a gas supply device 10 via a first conduit 11 and with a fuel cell 99 via a second conduit 12; a spray module 2 including a driver 21 communicating with the humidification container 1 to form a spray circulation loop 20; and a liquid replenishment module 3 including a first temperature control assembly 31. The humidification container 1 and the first temperature control assembly 31 are configured to connect to a liquid supply device 32 to form a liquid supply path 30. The first temperature control assembly 31 is configured to control the temperature of the liquid in the liquid supply path 30. The gas humidification device 100 also includes a controller and a first temperature sensor assembly connected to the controller. The first temperature sensor assembly is configured to detect the temperature of the liquid in the liquid supply path 30 and the humidification container 1. The controller is configured to control the first temperature control assembly 31 based on the temperature of the liquid in the liquid supply path 30 and the humidification container 1.

[0033] The humidifying container 1 can store a liquid, for example, deionized water. The humidifying container 1 can be connected to a gas supply device 10 via a first pipeline 11. The gas supply device 10 can serve as a gas source. The gas supply device 10 can pass dry gas into the humidifying container 1 via the first pipeline 11. The humidifying container 1 can be connected to the fuel cell 99 via a second pipeline 12. The gas humidified in the humidifying container 1 can be passed to the fuel cell 99 via the second pipeline 12.

[0034] The spray module 2 includes a driving member 21, as some embodiments of the present application, such as Figure 1As shown, the driving member 21 can be configured as a liquid pump (e.g., a gear pump). The driving member 21 is connected to the humidification container 1 to form a spray circulation loop 20. That is, through the drive of the driving member 21, the liquid in the humidification container 1 can flow out of the humidification container 1, and the liquid flowing out of the humidification container 1 can flow back into the humidification container 1. As some embodiments of the present application, the liquid flowing back into the humidification container 1 can be sprayed into the humidification container 1, and the liquid flowing back into the humidification container 1 can be sprayed downward from the upper end of the humidification container 1 to form convection with the dry gas entering the humidification container 1, thereby obtaining gas with a corresponding dew point.

[0035] The rehydration module 3 includes a first temperature control assembly 31. The humidification container 1 and the first temperature control assembly 31 are connected to a liquid supply device 32 to form a liquid supply path 30. Specifically, the liquid supply device 32 provides liquid (which may be deionized water) to the humidification container 1. The first temperature control assembly 31 controls the temperature of the liquid in the liquid supply path 30 to ensure that the temperature of the liquid entering the humidification container 1 is consistent with the original temperature of the liquid in the humidification container 1. This reduces the amplitude of the liquid temperature fluctuation in the humidification container 1 during rehydration and stabilizes the gas dew point temperature.

[0036] The controller is connected to the first temperature sensor assembly. As some embodiments of the present application, the controller and the first temperature sensor assembly can be connected by a wire. The first temperature sensor assembly is used to detect the temperature of the liquid in the liquid supply flow path 30 and the liquid in the humidification container 1. Specifically, the first temperature sensor assembly can detect the temperature of the liquid in the liquid supply flow path 30 and feed it back to the controller, and the first temperature sensor assembly can detect the temperature of the liquid in the humidification container 1 and feed it back to the controller. The controller can control the first temperature control assembly 31 based on the information fed back by the first temperature sensor assembly to adjust the temperature of the liquid in the liquid supply flow path 30 so that the temperature of the liquid entering the humidification container 1 is consistent with the original temperature of the liquid in the humidification container 1, thereby reducing the amplitude of the temperature fluctuation of the liquid in the humidification container 1 during water replenishment.

[0037] As some embodiments of the present application, the fuel cell 99 can be applied to a vehicle, and the gas humidification device 100 can provide humidified gas for the fuel cell 99 loaded on the vehicle to increase the service life of the fuel cell 99; alternatively, the fuel cell 99 can be applied to a test bench for performance testing, and the gas humidification device 100 can provide humidified gas for the fuel cell 99 loaded on the test bench to improve the accuracy of the performance test of the fuel cell 99.

[0038] Therefore, by making the rehydration module 3 include a first temperature control component 31, the liquid temperature of the liquid supply path 30 can be regulated by the first temperature control component 31 so that the temperature of the liquid supplied to the humidification container 1 is consistent with the temperature of the original liquid in the humidification container 1, thereby reducing the amplitude of the liquid temperature fluctuation in the humidification container 1 during water replenishment, and stabilizing the gas dew point temperature, which is beneficial to improving the service life of the fuel cell 99 or improving the accuracy of the fuel cell 99 test.

[0039] In some embodiments of the present invention, Figure 1 As shown, the first temperature sensor assembly includes: a first temperature sensor 41, a second temperature sensor 42, a third temperature sensor 43, and a fourth temperature sensor 44. The first temperature sensor 41 is arranged downstream of the liquid supply device 32 and upstream of the first temperature control assembly 31, the second temperature sensor 42 is arranged in the first temperature control assembly 31, the third temperature sensor 43 is arranged downstream of the first temperature control assembly 31 and upstream of the humidification container 1, and the fourth temperature sensor 44 is arranged in the humidification container 1.

[0040] Among them, Figure 1 As shown, a first temperature sensor 41 is provided downstream of the liquid supply device 32, and the first temperature sensor 41 is provided upstream of the first temperature control component 31, the first temperature control component 31 is provided with a second temperature sensor 42, a third temperature sensor 43 is provided downstream of the first temperature control component 31, and the third temperature sensor 43 is provided upstream of the humidification container 1, and the humidification container 1 is provided with a fourth temperature sensor 44.

[0041] Among them, the first temperature sensor 41, the second temperature sensor 42, the third temperature sensor 43, and the fourth temperature sensor 44 can all be connected to the controller (for example, via wires). The first temperature sensor 41 can detect the temperature of the liquid entering the liquid supply path 30 from the liquid supply device 32 and feed back the temperature of the liquid entering the liquid supply path 30 from the liquid supply device 32 to the controller. The fourth temperature sensor 44 can feed back the temperature of the liquid in the humidification container 1 to the controller. The controller can control the first temperature control component 31 based on the information fed back by the first temperature sensor 41 and the fourth temperature sensor 44 to adjust the temperature of the liquid entering the liquid supply path 30, so that the temperature of the liquid entering the humidification container 1 is consistent with the original temperature of the liquid in the humidification container 1, thereby reducing the amplitude of the temperature fluctuation of the liquid in the humidification container 1 during water replenishment. In addition, the second temperature sensor 42 can feed back the temperature of the liquid in the first temperature control component 31 to the controller, and the third temperature sensor 43 can feed back the temperature of the liquid about to enter the humidification container 1 to the controller. The controller can regulate the first temperature control component 31 according to the information fed back by the second temperature sensor 42 and the third temperature sensor 43 to improve the consistency between the temperature of the liquid entering the humidification container 1 and the original temperature of the liquid in the humidification container 1.

[0042] Such an arrangement can make the temperature of the liquid introduced into the humidifying container 1 consistent with the original temperature of the liquid in the humidifying container 1, thereby reducing the amplitude of the temperature fluctuation of the liquid in the humidifying container 1 during water replenishment.

[0043] In some embodiments of the present invention, Figure 1 As shown, the first temperature control component 31 includes: a first heat exchanger 311, and the first heat exchanger 311 is connected to the liquid supply device 32 and the humidification container 1 through the third pipeline 13 and the fourth pipeline 14 respectively.

[0044] The first temperature control assembly 31 includes a first heat exchanger 311, which is connected to the liquid supply device 32 via the third pipe 13. The first heat exchanger 311 is also connected to the humidification container 1 via the fourth pipe 14. In some embodiments of the present application, the first heat exchanger 311 is indirectly connected to the liquid supply device 32 via the third pipe 13.

[0045] Specifically, if Figure 1 As shown, the first heat exchanger 311 may include a first sub-channel 3111. One end of the first sub-channel 3111 may be connected to the third pipeline 13, and the other end of the first sub-channel 3111 may be connected to the fourth pipeline 14. Liquid flowing through the first sub-channel 3111 may exchange heat in the first sub-channel 3111 to control the temperature of the liquid in the first sub-channel 3111.

[0046] As some embodiments of this application, Figure 1 As shown, the first heat exchanger 311 may have a second sub-channel 3112. A heat exchange medium may flow into the second sub-channel 3112, and the heat exchange medium may be cooling water or hot water. This allows for more precise temperature control of the liquid in the first sub-channel 3111, so that the temperature of the liquid supplied to the humidification container 1 is consistent with the temperature of the original liquid in the humidification container 1.

[0047] As some embodiments of this application, Figure 1 As shown, the first heat exchanger 311 can have a second sub-channel 3112, one end of the second sub-channel 3112 can be connected to the first cooling water supply end 71, and the other end of the second sub-channel 3112 can be connected to the first cooling water outflow end 72, so that the second sub-channel 3112 has a continuous supply of cooling water. Such an arrangement can cool the liquid that is about to pass into the humidification container 1 through the first heat exchanger 311, so that the temperature of the liquid supplied to the humidification container 1 is consistent with the temperature of the original liquid in the humidification container 1.

[0048] As some embodiments of the present application, the temperature of the liquid in the first sub-channel 3111 can be precisely controlled by controlling the flow rate of cooling water in the second sub-channel 3112 .

[0049] By making the first temperature control component 31 include the first heat exchanger 311, the temperature of the liquid in the liquid supply path 30 can be accurately controlled by the first heat exchanger 311, so that the temperature of the liquid supplied to the humidification container 1 is consistent with the temperature of the original liquid in the humidification container 1, thereby reducing the amplitude of the liquid temperature fluctuation in the humidification container 1 during water replenishment and stabilizing the gas dew point temperature.

[0050] In some embodiments of the present invention, Figure 1 As shown, the first temperature control component 31 further includes: a first cooling water supply component 7 , which is connected to the first heat exchanger 311 to form a first cooling water supply loop 70 .

[0051] The first cooling water supply component 7 has a first cooling water supply end 71 and a first cooling water outflow end 72. As some embodiments of the present application, such as Figure 1 As shown, one end of the second sub-channel 3112 of the first heat exchanger 311 is connected to the first cooling water supply end 71, and the other end of the second sub-channel 3112 of the first heat exchanger 311 is connected to the first cooling water outflow end 72 to form a first cooling water supply loop 70. The first cooling water supply end 71 can provide cooling water to the second sub-channel 3112, and the cooling water in the second sub-channel 3112 can flow to the first cooling water outflow end 72. The liquid in the first sub-channel 3111 of the first heat exchanger 311 can exchange heat with the cooling water in the second sub-channel 3112 to reduce the temperature of the liquid in the first sub-channel 3111. As a result, the liquid about to be introduced into the humidification container 1 can be cooled by the first heat exchanger 311, so that the temperature of the liquid supplied to the humidification container 1 is consistent with the temperature of the liquid originally in the humidification container 1.

[0052] As some embodiments of this application, Figure 1 As shown, the first cooling water supply end 71 is connected to the first heat exchanger 311 through a pipeline, and a second throttle valve 52 is provided on the pipeline. By controlling the opening of the second throttle valve 52, the flow rate of cooling water in the second sub-channel 3112 can be controlled, so that the liquid in the first sub-channel 3111 can be cooled more accurately.

[0053] In some embodiments of the present invention, Figure 1 As shown, the first temperature control component 31 further includes: a first heater 312 , which is connected to the third pipeline 13 and to the liquid supply device 32 through the fifth pipeline 15 .

[0054] Among them, the first heater 312 is connected to the liquid supply device 32 through the fifth pipeline 15, and the first heater 312 can be connected to the first heat exchanger 311 through the third pipeline 13. It can be understood that the first heater 312 can heat the liquid flowing through it. Specifically, the controller can control the power of the first heater 312 to control the heating rate of the liquid so that the temperature of the liquid supplied to the humidification container 1 is consistent with the temperature of the original liquid in the humidification container 1, thereby reducing the amplitude of the liquid temperature fluctuation in the humidification container 1 during water replenishment and stabilizing the gas dew point temperature.

[0055] In some embodiments of the present invention, Figure 1 As shown, the liquid supply flow path 30 is provided with a first throttle valve 51, which is located downstream of the first temperature control component 31. The first throttle valve 51 is used to control the amount of liquid entering the humidification container 1 so that the consumption rate and replenishment rate of the liquid in the humidification container 1 are consistent.

[0056] Among them, the first throttle valve 51 is located downstream of the first temperature control component 31, and the first throttle valve 51 is set upstream of the humidification container 1. As some embodiments of the present application, such as Figure 1 As shown, the first heat exchanger 311 can be arranged downstream of the first heater 312 , and the first throttle valve 51 can be located downstream of the first heat exchanger 311 , that is, the first throttle valve 51 can be arranged in the fourth pipeline 14 .

[0057] By controlling the opening of the first throttle valve 51, the flow rate of the liquid entering the humidifying container 1 can be controlled. It can be understood that the liquid and gas in the humidifying container 1 are mixed to form a gas with a target dew point and is passed into the fuel cell 99. The liquid in the humidifying container 1 will be continuously consumed. The first throttle valve 51 can control the flow rate of the liquid in the liquid supply path 30, and thus can control the amount of liquid entering the humidifying container 1 per unit time to be consistent with the amount of liquid consumed by the humidifying container 1 per unit time. In other words, the consumption rate and replenishment rate of the liquid in the humidifying container 1 can be made consistent.

[0058] It should be noted that if a large amount of liquid is directly injected into the humidification container 1, the space inside the humidification container 1 will be compressed, which will cause the pressure at the gas inlet and outlet of the humidification container 1 to suddenly fluctuate, and the gas flow will increase instantaneously, which will cause the accuracy of the gas amount entering the fuel cell 99 to decrease, affecting the service life of the fuel cell 99 and the accuracy of the fuel cell 99 test.

[0059] By setting the first throttle valve 51, the controller can control the opening of the first throttle valve 51 so that the amount of liquid flowing into the humidification container 1 per unit time is consistent with the amount of liquid consumed by the humidification container 1 per unit time, thereby reducing the pressure fluctuation at the gas inlet and outlet of the humidification container 1 and stabilizing the gas flow rate, which is beneficial to increasing the service life of the fuel cell 99 and improving the accuracy of the fuel cell 99 test.

[0060] As some embodiments of the present application, the liquid consumption rate of the humidification container 1 can be calculated through an algorithm based on parameters such as the gas flow rate supplied by the gas supply device 10, the gas temperature supplied by the gas supply device 10, the humidity of the gas entering the fuel cell 99, and the gas temperature entering the fuel cell 99.

[0061] In some embodiments of the present invention, Figure 1 As shown, the fourth pipeline 14 is provided with a flow meter 6 , which is located downstream of the first throttle valve 51 .

[0062] The flow meter 6 is located downstream of the first throttle valve 51 and upstream of the humidification container 1. The flow meter 6 can feed back the flow rate of the liquid flowing into the humidification container 1 to the controller, so that the controller can accurately obtain the flow rate of the liquid flowing into the humidification container 1. The controller can then more accurately control the opening of the first throttle valve 51 based on the data fed back by the flow meter 6, so as to more accurately make the consumption rate and replenishment rate of the liquid in the humidification container 1 consistent.

[0063] For example, when the consumption rate of the liquid in the humidifying container 1 is greater than the replenishment rate of the liquid in the humidifying container 1, the opening of the first throttle valve 51 is increased to increase the replenishment rate of the liquid to the humidifying container 1. When the consumption rate of the liquid in the humidifying container 1 is less than the replenishment rate of the liquid in the humidifying container 1, the opening of the first throttle valve 51 is decreased to reduce the replenishment rate of the liquid to the humidifying container 1. In some embodiments of the present application, during the process of controlling the temperature of the liquid in the liquid supply flow path 30 by the first temperature control component 31, the opening of the first throttle valve 51 can be controlled to more accurately ensure that the temperature of the liquid entering the humidifying container 1 is consistent with the original temperature of the liquid in the humidifying container 1.

[0064] In some embodiments of the present invention, Figure 1 As shown, the spray module 2 also includes: a second temperature control component 22, the driving part 21, the humidification container 1, and the second temperature control component 22 are connected to form a spray circulation loop 20, and the second temperature control component 22 is used to regulate the liquid temperature in the spray circulation loop 20; the gas humidification device 100 also includes: a second temperature sensor component, the second temperature sensor component is used to detect the liquid temperature in the spray circulation loop 20, and the controller is used to control the second temperature control component according to the liquid temperature in the spray circulation loop 20 and the humidification container 1.

[0065] The second temperature control assembly 22 is connected to the drive member 21 and the humidification container 1. The liquid in the humidification container 1 can flow out of the humidification container 1 via the drive member 21, flow through the second temperature control assembly 22, and then return to the humidification container 1. The liquid in the humidification container 1 can then be sprayed downward from the upper end of the humidification container 1. The second temperature control assembly 22 can regulate the temperature of the liquid in the spray circulation loop 20. Specifically, the liquid flowing out of the humidification container 1 can be temperature-controlled in the second temperature control assembly 22 to ensure that the temperature of the liquid in the humidification container 1 meets operating requirements.

[0066] In which, the controller can be connected to the second temperature sensor component (for example, a wire connection), and the second temperature sensor component is used to detect the liquid temperature of the spray circulation loop 20. Specifically, the second temperature sensor component can detect the temperature of the liquid in the spray circulation loop 20 and feed it back to the controller. The controller can control the second temperature control component 22 according to the information feedback from the second temperature sensor component to adjust the liquid temperature in the spray circulation loop 20 so that the liquid temperature in the humidification container 1 meets the requirements.

[0067] As some embodiments of this application, Figure 1 As shown, the second temperature sensor assembly includes a fifth temperature sensor 45 and a sixth temperature sensor 46. The fifth temperature sensor 45 can be installed on the pipeline connecting the second temperature control assembly 22 and the humidification container 1, and the second temperature control assembly 22 is equipped with a sixth temperature sensor 46. Both the fifth temperature sensor 45 and the sixth temperature sensor 46 can be connected to the controller. The fifth temperature sensor 45 and the sixth temperature sensor 46 can both feed back the detected liquid temperature to the controller. The controller can control the second temperature control assembly 22 based on the feedback from the fifth temperature sensor 45 and the sixth temperature sensor 46 to adjust the liquid temperature in the humidification container 1 to meet the required liquid temperature.

[0068] By making the spray module 2 include the second temperature control component 22 , the temperature of the liquid in the spray circulation loop 20 can be adjusted so that the temperature of the liquid in the humidification container 1 meets the requirements.

[0069] In some embodiments of the present invention, Figure 1 As shown, the second temperature control component 22 includes: a second heat exchanger 221 , and the spray module 2 further includes: a second cooling water supply component 8 , which is connected to the second heat exchanger 221 to form a second cooling water supply loop 80 .

[0070] Among them, the second temperature control component 22 includes a second heat exchanger 221. As some embodiments of the present application, the second heat exchanger 221 is connected to the driving member 21 through the sixth pipeline 16, and the second heat exchanger 221 is connected to the humidification container 1 through the seventh pipeline 17.

[0071] Specifically, if Figure 1 As shown, the second heat exchanger 221 may have a third sub-channel 2211, one end of the third sub-channel 2211 may be connected to the sixth pipeline 16, and the other end of the third sub-channel 2211 may be connected to the seventh pipeline 17. The liquid flowing through the third sub-channel 2211 can exchange heat in the third sub-channel 2211 to control the temperature of the liquid in the third sub-channel 2211. As some embodiments of the present application, Figure 1 As shown, the second heat exchanger 221 may have a fourth sub-channel 2212. As some embodiments of the present application, such as Figure 1 As shown, the spray module 2 includes a second cooling water supply assembly 8, which communicates with the fourth sub-channel 2212 to form a second cooling water supply loop 80. Specifically, one end of the fourth sub-channel 2212 is connected to the second cooling water supply port 81, and the other end of the fourth sub-channel 2212 is connected to the second cooling water outlet port 82. This arrangement allows the liquid in the spray circulation loop 20 to be cooled via the second heat exchanger 221.

[0072] As some embodiments of this application, Figure 1 As shown, the second cooling water supply end 81 is connected to the second heat exchanger 221 through a pipeline, and a third throttle valve 53 is provided on the pipeline. By controlling the opening of the third throttle valve 53, the flow rate of cooling water in the fourth sub-channel 2212 can be controlled, so that the liquid in the third sub-channel 2211 can be cooled more accurately.

[0073] In some embodiments of the present invention, Figure 1 As shown, the second temperature control component 22 further includes: a second heater 222 , which is connected between the driving member 21 and the second heat exchanger 221 through a pipeline, and the second heater 222 is used to heat the liquid in the spray circulation loop 20 .

[0074] Among them, the second heater 222 is connected to the driving member 21 through the eighth pipeline 18, and the second heater 222 can be connected to the second heat exchanger 221 through the sixth pipeline 16. It can be understood that the second heater 222 can heat the liquid flowing through it. Specifically, the controller can control the power of the second heater 222 to control the heating rate of the liquid so that the liquid temperature in the humidification container 1 meets the requirements.

[0075] As some embodiments of this application, Figure 1As shown, the humidifying container 1 is provided with a liquid level gauge 9. The types of the liquid level gauge may be, but are not limited to, a glass liquid level gauge, a pressure liquid level gauge, a float liquid level gauge, a capacitance liquid level gauge, and a resistance liquid level gauge. As some embodiments of the present application, the liquid level gauge 9 is a float liquid level gauge, which includes a float, a connecting rod, and an indicator. The float floats on the liquid surface, and the float is connected to the connecting rod, and the connecting rod is connected to the indicator. The floating up or down movement of the float drives the connecting rod, so that the connecting rod drives the indicator to display the liquid level height, thereby obtaining information on the rise or fall of the water level. It can be understood that the liquid level gauge 9 is used to display the liquid level height of the liquid in the humidifying container 1. By providing the humidifying container 1 with a liquid level gauge, the experimenter can visually observe the liquid level height in the humidifying container 1 through the liquid level gauge 9, thereby facilitating the experimenter to quickly obtain the liquid level information in the humidifying container 1.

[0076] As some embodiments of the present application, the humidification container 1 can be connected to the fuel cell 99 through the second pipeline 12, the seventh temperature sensor 47 can be arranged in the second pipeline 12, the seventh temperature sensor 47 is connected to the controller, and the seventh temperature sensor 47 can feed back the gas temperature in the second pipeline 12 to the controller.

[0077] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0078] In the description of the present invention, "first feature" and "second feature" may include one or more such features.

[0079] In the description of the present invention, “plurality” means two or more.

[0080] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact via another feature therebetween.

[0081] In the description of the present invention, a first feature “above”, “above” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0082] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0083] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A gas humidifying device (100), characterized in that: The gas humidifying device (100) is used to control the intake air humidity of the fuel cell (99), and the gas humidifying device (100) comprises: A humidifying container (1), wherein liquid is stored in the humidifying container (1), and the humidifying container (1) is suitable for being connected to a gas supply device (10) through a first pipeline (11), and is suitable for being connected to a fuel cell (99) through a second pipeline (12); A spray module (2), the spray module (2) comprising: a driving member (21), the driving member (21) being in communication with the humidification container (1) to form a spray circulation loop (20); A liquid replenishment module (3), the liquid replenishment module (3) comprising a first temperature control component (31), the humidification container (1) and the first temperature control component (31) being used to be connected with a liquid supply device (32) to form a liquid supply flow path (30), the first temperature control component (31) being used to regulate the liquid temperature of the liquid supply flow path (30); A controller and a first temperature sensor component connected to the controller, wherein the first temperature sensor component is used to detect the temperature of the liquid in the liquid supply flow path (30) and the humidification container (1), and the controller is used to control the first temperature control component (31) according to the temperature of the liquid in the liquid supply flow path (30) and the humidification container (1).

2. The gas humidifying device (100) according to claim 1, characterized in that: The first temperature sensor component comprises: a first temperature sensor (41), a second temperature sensor (42), a third temperature sensor (43), and a fourth temperature sensor (44); the first temperature sensor (41) is arranged downstream of the liquid supply device (32) and upstream of the first temperature control component (31); the second temperature sensor (42) is arranged on the first temperature control component (31); the third temperature sensor (43) is arranged downstream of the first temperature control component (31) and upstream of the humidification container (1); and the fourth temperature sensor (44) is arranged on the humidification container (1).

3. The gas humidifying device (100) according to claim 1, characterized in that: The first temperature control component (31) comprises: a first heat exchanger (311), wherein the first heat exchanger (311) is connected to the liquid supply device (32) and the humidification container (1) respectively through a third pipeline (13) and a fourth pipeline (14).

4. The gas humidifying device (100) according to claim 3, characterized in that: The first temperature control component (31) further comprises: a first cooling water supply component (7), wherein the first cooling water supply component (7) is connected to the first heat exchanger (311) to form a first cooling water supply circuit (70).

5. The gas humidifying device (100) according to claim 3, characterized in that: The first temperature control component (31) further comprises: a first heater (312), wherein the first heater (312) is connected to the third pipeline (13) and is connected to the liquid supply device (32) via a fifth pipeline (15).

6. The gas humidifying device (100) according to claim 3, characterized in that: The liquid supply flow path (30) is provided with a first throttle valve (51), and the first throttle valve (51) is located downstream of the first temperature control component (31). The first throttle valve (51) is used to control the amount of liquid entering the humidifying container (1) so that the consumption rate and replenishment rate of the liquid in the humidifying container (1) are consistent.

7. The gas humidifying device (100) according to claim 6, characterized in that: The fourth pipeline (14) is provided with a flow meter (6), and the flow meter (6) is located downstream of the first throttle valve (51).

8. The gas humidifying device (100) according to claim 1, characterized in that: The spray module (2) further comprises: a second temperature control component (22); the driving component (21), the humidifying container (1), and the second temperature control component (22) are connected to form the spray circulation loop (20); the second temperature control component (22) is used to control the temperature of the liquid in the spray circulation loop (20); The gas humidifying device (100) further comprises: a second temperature sensor component, the second temperature sensor component being used to detect the temperature of the liquid in the spray circulation loop (20), and the controller being used to control the second temperature control component (22) according to the temperature of the liquid in the spray circulation loop (20) and the humidifying container (1).

9. The gas humidifying device (100) according to claim 8, characterized in that: The second temperature control component (22) comprises: a second heat exchanger (221); the spray module (2) further comprises: a second cooling water supply component (8); the second cooling water supply component (8) is connected to the second heat exchanger (221) to form a second cooling water supply circuit (80).

10. The gas humidifying device (100) according to claim 9, characterized in that: The second temperature control component (22) further comprises: a second heater (222), wherein the second heater (222) is connected between the driving component (21) and the second heat exchanger (221) via a pipeline.

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