Fan control method, device and system of fuel cell square cabin and square cabin

Abstract

When a system power-on signal of the fuel cell shelter is detected, one set of fans in multiple sets of fans is randomly selected to be determined as a first fan set, and the first fan set is started; starting to time the running time of the first fan unit; the current timing duration of the operation duration timing and the current in-cabin environment temperature value and the current combustible gas leakage value of the fuel cell square cabin are obtained; according to the current in-cabin environment temperature value and the current combustible gas leakage value, other fan sets except the first fan set in the multiple sets of fans are controlled to be turned on and turned off; and according to the current timing duration in combination with the on-off states of other fan sets, one fan set is determined from the fan sets, currently in the off state, of the other fan sets to operate in turn with the first fan set. According to the method and the device, the starting of the corresponding fans is controlled in real time according to the current in-cabin environment temperature, the current combustible gas leakage value and the fan operation duration of the fuel cell square cabin, so that the number of fans which are started simultaneously for a long time is reduced.

Description

Technical Field

[0001] The present application relates to the field of fan control technology, and in particular to a fan control method, device, system and cabin of a fuel cell cabin. Background Art

[0002] The fuel cell cabin is a large-scale energy storage device. Since it uses combustible gas as energy, there is a risk of concentrated combustion and explosion. Therefore, a fan system is needed to continuously update the air in the cabin to ensure that the concentration of combustible gas is always kept within a safe range. In addition, during operation, the heat generated inside the fuel cell cabin and external solar radiation will increase the temperature inside the cabin. The fuel cell and its detection elements have specific requirements for the temperature of the operating environment. If the temperature exceeds the set upper limit, it may affect the normal operation of the equipment and components. Therefore, a fan system is needed to exchange air to reduce the temperature inside the cabin.

[0003] The traditional way to control cabin fans is to turn on all fans when the cabin equipment is started. This approach has several problems: first, it will lead to a waste of electricity; second, turning on all fans will make the ventilation speed too fast, and turning on all fans for a long time will not be able to effectively monitor the leakage of combustible gas; finally, running the fan at full speed for a long time may shorten its service life. Summary of the invention

[0004] Embodiments of the present invention provide a fan control method, device, system and cabin of a fuel cell cabin, so as to control the opening of corresponding fans according to the cabin ambient temperature, combustible gas leakage value and fan operation time of the fuel cell cabin, thereby reducing the number of fans that are turned on at the same time for a long time.

[0005] In a first aspect, an embodiment of the present invention provides a fan control method for a fuel cell cabin, wherein the fuel cell cabin comprises a plurality of groups of fans, each group of fans having at least one fan, the method comprising:

[0006] When a system power-on signal of the fuel cell cabin is detected, a group of fans from the plurality of groups of fans is randomly selected as a first fan group, and the first fan group is turned on;

[0007] Starting to count the running time of the first fan group;

[0008] Obtaining the current timing duration of the operating duration timing, the current cabin ambient temperature value of the fuel cell cabin, and the current combustible gas leakage value;

[0009] According to the current cabin ambient temperature value and the current combustible gas leakage value, control the on / off of other fan groups except the first fan group among the multiple fan groups;

[0010] According to the current timing duration and the on / off status of the other fan groups, a fan group is determined from the other fan groups that are currently in the off state to rotate with the first fan group.

[0011] In a second aspect, an embodiment of the present invention further provides a fan control device for a fuel cell cabin, wherein the fuel cell cabin comprises a plurality of groups of fans, each group of fans comprises at least one fan, and the device comprises:

[0012] A first control module, configured to randomly select a group of fans from the plurality of groups of fans as a first fan group when a system power-on signal of the fuel cell cabin is detected, and start the first fan group;

[0013] An operation timing module, used to start timing the operation time of the first wind turbine group;

[0014] An information acquisition module, used to acquire the current timing duration of the operating duration timing, the current cabin ambient temperature value of the fuel cell cabin, and the current combustible gas leakage value;

[0015] A second control module, used for controlling the on / off of other fan groups except the first fan group among the multiple fan groups according to the current cabin ambient temperature value and the current combustible gas leakage value;

[0016] The third control module is used to determine a fan group from the other fan groups that are currently in the shutdown state to rotate with the first fan group according to the current timing duration and the on / off state of the other fan groups.

[0017] In a third aspect, an embodiment of the present invention further provides a fan control system for a fuel cell cabin, wherein the fuel cell cabin comprises a plurality of groups of fans, each group of fans comprises at least one fan, and the fan control system comprises:

[0018] one or more processors;

[0019] A storage device for storing one or more programs;

[0020] The one or more processors are respectively connected to the multiple groups of fans and the storage device, and the one or more programs are executed by the one or more processors, so that the one or more processors control the multiple groups of fans to implement the fan control method of the fuel cell cabin as described in the first aspect of the embodiment of the present invention.

[0021] In a fourth aspect, an embodiment of the present invention further provides a fuel cell cabin, the fuel cell cabin comprising a fan control system of the fuel cell cabin as described in the third aspect of the embodiment of the present invention;

[0022] A plurality of groups of fans, each group of fans having at least one fan;

[0023] A temperature measuring device, used to measure the current cabin ambient temperature of the fuel cell cabin in real time;

[0024] A combustible gas concentration measuring device, used for measuring the current combustible gas leakage value of the fuel cell cabin in real time;

[0025] The fan control system is respectively connected to a plurality of groups of the fans, the temperature measuring device and the combustible gas concentration measuring device, and is used to implement the fan control method for the fuel cell cabin as described in the first aspect of the embodiment of the present invention.

[0026] When the system power-on signal of the fuel cell cabin is detected, the embodiment of the present invention randomly selects a group of fans from multiple groups of fans as the first fan group, and turns on the first fan group; starts timing the running time of the first fan group; obtains the current timing time of the running time timing and the current cabin ambient temperature value and the current combustible gas leakage value of the fuel cell cabin; controls the on / off of other fan groups other than the first fan group in the multiple fan groups according to the current cabin ambient temperature value and the current combustible gas leakage value; and determines a fan group from the fan groups currently in the shutdown state according to the current timing time combined with the on / off state of other fan groups to rotate with the first fan group. In this way, the opening of the corresponding fan is controlled in real time according to the current cabin ambient temperature, the current combustible gas leakage value and the running time of the fan, thereby reducing the number of fans that are turned on at the same time for a long time, thereby saving power resources and extending the service life of the fan. In addition, it also solves the problem that the ventilation speed is too fast when the fan is fully turned on for a long time, so that the combustible gas leakage cannot be effectively monitored. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a flow chart of a fan control method for a fuel cell cabin provided in the first embodiment of the present invention;

[0028] Figure 2 It is a flow chart of a fan control method for a fuel cell cabin provided in the second embodiment of the present invention;

[0029] Figure 3 This is a flowchart of a fan control method for a fuel cell cabin provided in the second embodiment of the present invention;

[0030] Figure 4 It is a structural schematic diagram of a fan control device for a fuel cell cabin provided in Embodiment 3 of the present invention;

[0031] Figure 5 It is a structural schematic diagram of a fan control system of a fuel cell cabin provided by a fourth embodiment of the present invention;

[0032] Figure 6 It is a structural schematic diagram of a fuel cell cabin provided in Example 5 of the present invention. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. It is also necessary to explain that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all structures.

[0034] Embodiment 1

[0035] It is understandable that the fuel cell cabin needs to be equipped with a fan for ventilation operation due to its own functional structure and application scenario characteristics. Usually, the fuel cell cabin will be equipped with multiple fans, and the traditional fan control method is full-on operation, that is, all fans are turned on and running after the cabin system is powered on. The advantage of the traditional fan control method is simplicity, and even no additional fan control module is required, and only the fan switch trigger module is set. However, this method cannot realize the control of the opening of the corresponding number of fans according to the actual application scenario, thereby causing a waste of power resources and shortening the effective service life of the fan. In addition, when there is a combustible gas leak, the full opening of the fan may cause the ventilation to be too fast, so that the concentration value of the leaked gas does not reach the detection threshold of the gas leak detection device, and the long-term full opening of the fan will not be able to effectively monitor the leakage of the combustible gas, and thus the leakage data of the combustible gas cannot be further analyzed and utilized. The present application is to propose a method for real-time control of the number of fans to be turned on according to the cabin ambient temperature, combustible gas leakage value and fan operation time of the fuel cell cabin.

[0036] It should be noted that the fan control scheme for the fuel cell cabin proposed in this application does not limit the specific number of fans installed in the fuel cell cabin, nor does it limit the specific type of fuel cell. In addition, the fuel cell cabin in this application contains multiple groups of fans, each of which has at least one fan. This application also does not limit the number of each group of fans, and the number of fans in each group can be the same or different; and this application does not limit the specific grouping method of the fans.

[0037] It should be noted that the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0038] Figure 1 A flow chart of a fan control method for a fuel cell cabin provided in Example 1 of the present invention is provided. This embodiment can be applied to real-time control of the opening of corresponding fans according to the current cabin ambient temperature of the fuel cell cabin, the current combustible gas leakage value and the fan operation time to reduce the number of fans that are turned on simultaneously for a long time. The method can be executed by a fan control device of the fuel cell cabin, which can be implemented by software and / or hardware and can be integrated on the fuel cell cabin.

[0039] like Figure 1 As shown, the fan control method of the fuel cell cabin provided in this embodiment specifically includes the following steps:

[0040] S101. When a system power-on signal of the fuel cell cabin is detected, a group of fans from the plurality of groups of fans is randomly selected as a first fan group, and the first fan group is turned on.

[0041] Among them, the system power-on signal of the fuel cell cabin refers to the initial signal that each module inside the cabin starts working after the fuel cell cabin is powered on.

[0042] It is understandable that before the fuel cell cabin completes system power-up, all fans are in a shutdown state. When the system is powered on, a group of normally open fans can be opened for the normal working conditions of the cabin to complete the ventilation and cooling of the cabin. In the case where the cabin is equipped with multiple groups of fans, any one group of fans can be selected as the normally open fan group. The first fan group in the embodiment of the present invention can be understood as the aforementioned normally open fan group.

[0043] S102: Start timing the operating time of the first wind turbine group.

[0044] It is understandable that since the first fan group is a normally-on fan group, considering that too long continuous operation time will affect the service life of the fan, the operation time of the first fan group can be monitored. After the first fan group has been running continuously for a certain period of time, its state can be switched with other fan groups in the shutdown state, so that the continuously running first fan group can be shut down and rest.

[0045] It should be noted that the embodiment of the present invention does not limit the specific timing method.

[0046] S103, obtaining the current timing duration of the operating duration timing, the current cabin ambient temperature value of the fuel cell cabin, and the current combustible gas leakage value.

[0047] The current cabin ambient temperature value refers to the cabin ambient temperature value of the fuel cell cabin at the current moment; the current combustible gas leakage value refers to the concentration value of the combustible gas leaked from the fuel cell cabin at the current moment.

[0048] Optionally, the current cabin ambient temperature value may be measured by a temperature sensor, and the current combustible gas leakage value may be measured by a corresponding gas sensor.

[0049] S104, controlling the on / off of other fan groups except the first fan group among the multiple fan groups according to the current cabin ambient temperature value and the current combustible gas leakage value.

[0050] It can be understood that by monitoring the current cabin ambient temperature value and the current combustible gas leakage value, when the current cabin ambient temperature value reaches above a certain temperature threshold and / or the current combustible gas leakage value reaches a certain concentration threshold, more fans can be turned on step by step as needed to achieve rapid cooling of the cabin ambient temperature and rapid dilution of the leaked combustible gas in the cabin.

[0051] In one embodiment, when the current cabin ambient temperature value reaches a certain temperature threshold or above, or the current combustible gas leakage value reaches a certain concentration threshold, the second fan unit is opened on the basis of opening the first fan unit; when the current cabin ambient temperature value reaches a preset temperature threshold or above, and the current combustible gas leakage value reaches a preset concentration threshold or above, the third fan unit is opened on the basis of opening the first fan unit and the second fan unit. Accordingly, when the current cabin ambient temperature value drops below the preset temperature threshold and the current combustible gas leakage value remains above the preset concentration threshold, or the current combustible gas leakage value drops below the preset concentration threshold and the current cabin ambient temperature value remains above the preset temperature threshold, the third fan unit is closed, and the first fan unit and the second fan unit are kept in the open state; when the current cabin ambient temperature value drops below the preset temperature threshold and the current combustible gas leakage value drops below the preset concentration threshold, the second fan unit is closed on the basis of closing the third fan unit, and only the first fan unit is kept in the open state.

[0052] S105 , according to the current timing duration and the on / off status of the other wind groups, determine a wind group from the other wind groups that are currently in the off state to rotate with the first wind group for operation.

[0053] Optionally, the power on / off state includes a power on state and a power off state.

[0054] It should be noted that the shutdown state described in the embodiment of the present invention refers to a wind turbine that can operate normally and is currently in a shutdown state, and does not include a shutdown state in which the wind turbine cannot operate due to a fault.

[0055] It is understandable that, since the first fan unit is a normally-on fan unit, the other fan units are turned on and run only when certain conditions are met. Therefore, in order to avoid long-term continuous operation of the first fan unit and accelerate the aging of its components, thereby affecting its service life, a continuous working cycle can be set. When its continuous working time reaches the set continuous working cycle, it can be considered to rotate to other fan units in the shutdown state (idle state), so that the first fan unit, which is a normally-on fan unit, can be shut down for rest, thereby extending its service life.

[0056] In one embodiment, when the current timing duration reaches a preset time threshold and at least one of the other wind groups is an idle wind group, the first wind group is turned off and one of the idle wind groups is turned on; when the current timing duration reaches a preset time threshold and the other wind groups are in operation, the first wind group continues to operate until at least one of the other wind groups enters a shutdown state (idle state) (i.e., at least one of the other wind groups is an idle wind group).

[0057] The embodiment of the present invention randomly selects a group of fans from multiple groups of fans as the first fan group when detecting the system power-on signal of the fuel cell cabin, and turns on the first fan group; then starts timing the running time of the first fan group; then obtains the current timing time of the running time timing and the current cabin ambient temperature value and the current combustible gas leakage value of the fuel cell cabin; then controls the on / off of other fan groups other than the first fan group in the multiple fan groups according to the current cabin ambient temperature value and the current combustible gas leakage value; finally, according to the current timing time combined with the on / off state of other fan groups, controls the first fan group and one of the other fan groups to rotate and operate. Thus, the corresponding fan is controlled to be turned on in real time according to the current cabin ambient temperature, the current combustible gas leakage value and the fan running time of the fuel cell cabin, thereby reducing the number of fans that are turned on at the same time for a long time, thereby saving power resources and extending the effective service life of the fan. In addition, it also solves the problem that the ventilation speed is too fast when the fan is fully turned on for a long time, so that the combustible gas leakage cannot be effectively monitored.

[0058] Further, on the basis of the above embodiment, the fuel cell cabin is provided with a fire monitoring and early warning device, and the fan control method of the fuel cell cabin may also include:

[0059] When receiving the fire warning signal sent by the fire monitoring and warning device, all fans are turned off.

[0060] Among them, the fire monitoring and early warning device is a device that monitors in real time whether there is a fire hazard inside the fuel cell cabin and issues a timely early warning in the initial stage of the hazard.

[0061] Optionally, fire monitoring and early warning devices include but are not limited to: smoke fire detectors (referred to as smoke detectors) and temperature fire detectors (referred to as temperature detectors).

[0062] Optionally, the fire warning signal includes but is not limited to: a smoke alarm signal and / or a temperature alarm signal.

[0063] It is understandable that by shutting down all fans upon receiving a fire warning signal from a fire monitoring and warning device, ventilation can be prevented from fueling the fire, thus achieving fire linkage / interlocking control.

[0064] Embodiment 2

[0065] Figure 2 This is a flow chart of a fan control method for a fuel cell cabin provided in the second embodiment of the present invention, and this embodiment is further optimized on the basis of the first embodiment. This embodiment controls the power on and off of other fan groups other than the first fan group in the multiple fan groups according to the current cabin ambient temperature value and the current combustible gas leakage value, which is specifically as follows: compare the current cabin ambient temperature value with at least one preset temperature threshold; compare the current combustible gas leakage value with at least one preset leakage threshold; and control the power on and off of the other fan groups according to the comparison result.

[0066] This embodiment further determines a fan group from the fan groups that are currently in the shutdown state according to the current timing duration in combination with the on / off status of the other fan groups to rotate with the first fan group, which is specifically implemented as follows: comparing the current timing duration with a preset time threshold; when the current timing duration is greater than or equal to the preset time threshold, obtaining the current on / off status of the other fan groups; when at least one fan group among the other fan groups is currently in the shutdown state, randomly selecting one fan group among the at least one fan group as the rotation fan group, stopping the timing of the running time of the first fan group and clearing the timing, turning off the first fan group and turning on the rotation fan group, exchanging the identity identification ID numbers of the first fan group and the rotation fan group to obtain a new first fan group, and returning to execute the start operation of timing the running time of the new first fan group.

[0067] like Figure 2 As shown, the fan control method of the fuel cell cabin provided in this embodiment specifically includes the following steps:

[0068] S201. When a system power-on signal of the fuel cell cabin is detected, a group of fans from the plurality of groups of fans is randomly selected as a first fan group, and the first fan group is turned on.

[0069] S202: Start timing the operating time of the first wind turbine group.

[0070] S203, obtaining the current timing duration of the operating duration timing, the current cabin ambient temperature value of the fuel cell cabin, and the current combustible gas leakage value.

[0071] S204: Compare the current cabin ambient temperature value with at least one preset temperature threshold.

[0072] S205: Compare the current combustible gas leakage value with at least one preset leakage threshold.

[0073] S206: Control the power on and off of the other fan groups according to the comparison result.

[0074] It can be understood that when monitoring the current cabin ambient temperature value and the current combustible gas leakage value, multiple gradient thresholds can be set respectively (the sizes of the multiple thresholds increase or decrease step by step). Based on the comparison results, the number of fan groups opened in other fan groups can be increased or reduced step by step, thereby realizing on-demand gradient control of the number of fan openings.

[0075] In one embodiment, the other fan groups include a second fan group and a third fan group, the at least one preset temperature threshold includes a first preset temperature threshold and a second preset temperature threshold, and the at least one preset leakage threshold includes a first preset leakage threshold and a second preset leakage threshold, wherein the first preset temperature threshold is less than the second preset temperature threshold, and the first preset leakage threshold is less than the second preset leakage threshold;

[0076] Correspondingly, controlling the on / off of the other fan groups according to the comparison result includes:

[0077] When the current cabin ambient temperature value is greater than or equal to the first preset temperature threshold, and / or the current combustible gas leakage value is greater than or equal to the first preset leakage threshold, turning on the second fan unit; otherwise, turning off the second fan unit;

[0078] When the current cabin ambient temperature value is greater than or equal to the second preset temperature threshold, and / or the current combustible gas leakage value is greater than or equal to the second preset leakage threshold, turn on the third fan group; otherwise, turn off the third fan group.

[0079] In one embodiment, when the current cabin ambient temperature value is less than the first preset temperature threshold, and the current combustible gas leakage value is less than the first preset leakage threshold, the on / off status of the second fan group is obtained; if the second fan group is in the off state, the on / off status of the second fan group is kept unchanged; if the second fan group is in the on state, the second fan group is turned off.

[0080] In one embodiment, when the current cabin ambient temperature value is less than the second preset temperature threshold, and the current combustible gas leakage value is less than the second preset leakage threshold, the on / off state of the third fan group is obtained; if the third fan group is in the off state, the on / off state of the third fan group is kept unchanged; if the third fan group is in the on state, the third fan group is turned off.

[0081] S207: Compare the current timing duration with a preset time threshold.

[0082] S208: When the current timing duration is greater than or equal to the preset time threshold, obtain the current on / off status of the other fan groups.

[0083] It can be understood that, for the current on / off status of other fan groups, a special status flag can be set to mark it, and it can be obtained by reading the status flag, or it can be indirectly obtained based on the comparison results of the current cabin ambient temperature value and at least one preset temperature threshold and the current combustible gas leakage value and at least one preset leakage threshold (this is because the on / off of each fan group in other fan groups is controlled based on the aforementioned comparison results).

[0084] S209. When at least one of the other wind groups is currently in a shutdown state, randomly select one of the at least one wind group to be determined as a rotation wind group, stop timing the operating time of the first wind group and reset the timing, turn off the first wind group and turn on the rotation wind group, exchange the identification (ID) numbers of the first wind group and the rotation wind group to obtain a new first wind group, and return to execute the start operation of timing the operating time of the new first wind group.

[0085] It can be understood that the fan control method of the embodiment of the present invention can be executed cyclically. Since the first fan group is a normally-on fan group, after selecting an idle fan group from other fan groups to rotate with the first fan group, by exchanging the IDs of the two, it can be ensured that the new first fan group is still in the normally-on state. In this way, cyclic execution can be achieved.

[0086] In one embodiment, the other fan groups include a second fan group and a third fan group;

[0087] When the third fan group is currently in the shutdown state and the second fan group is currently in the startup state, the third fan group is determined as the rotation fan group, the timing of the operation time of the first fan group is stopped and the timing is reset, the first fan group is turned off and the rotation fan group is turned on, the IDs of the first fan group and the rotation fan group are exchanged to obtain a new first fan group, and the start operation of timing the operation time of the new first fan group is returned;

[0088] When the second fan group is currently in the shutdown state, the second fan group or the third fan group is determined as the rotation fan group, the timing of the operating time of the first fan group is stopped and the timing is reset, the first fan group is turned off and the rotation fan group is turned on, the IDs of the first fan group and the rotation fan group are swapped to obtain a new first fan group, and the start operation of timing the operating time of the new first fan group is returned.

[0089] It can be understood that the second fan group is in the shutdown state, which indicates that the current cabin ambient temperature value is less than the first preset temperature threshold and the current combustible gas leakage value is less than the first preset leakage threshold. Because the first preset temperature threshold is less than the second preset temperature threshold and the first preset leakage threshold is less than the second preset leakage threshold, and the third fan group is only turned on when the current cabin ambient temperature value is greater than or equal to the second preset temperature threshold, and / or the current combustible gas leakage value is greater than or equal to the second preset leakage threshold, when the second fan group is in the shutdown state, the third fan group should also be in the shutdown state.

[0090] Figure 3 FIG. 1 is a flow chart of a fan control method for a fuel cell cabin provided in the second embodiment of the present invention. Figure 3 As shown, the fan control method of the fuel cell cabin provided in this example takes three fan groups as an example, and specifically includes the following steps:

[0091] S301: Detecting the system power-on signal S of the fuel cell cabin 上电 .

[0092] S302: Determine whether a fire warning signal S sent by a fire monitoring and warning device is received. 预警 ; If so, execute step S303; otherwise, execute step S304.

[0093] S303. Turn off all fans.

[0094] S304: randomly select one group of fans from the three groups of fans as the first fan group, and start the first fan group.

[0095] S305, start timing the operating time of the first wind turbine group.

[0096] S306, obtaining the current time duration t of the operation time duration timing, the current cabin ambient temperature value T of the fuel cell cabin, and the current combustible gas leakage value n.

[0097] S307, determine whether the current cabin ambient temperature value T is greater than or equal to the first preset temperature threshold value T1 and the current combustible gas leakage value n is greater than or equal to the first preset leakage threshold value n1; if so, execute step S308; otherwise, execute step S309.

[0098] S308, start the second fan unit; jump to step S310.

[0099] S309, turn off the second fan unit; jump to step S313.

[0100] S310, determine whether the current cabin ambient temperature value T is greater than or equal to the second preset temperature threshold value T2 and the current combustible gas leakage value n is greater than or equal to the second preset leakage threshold value n1; if so, execute step S311; otherwise, execute step S312.

[0101] S311, turn on the third fan unit; jump to step S313.

[0102] S312. Turn off the third wind turbine.

[0103] S313, determine whether the current timing duration t is greater than or equal to the preset time threshold δ; if so, execute step S312; otherwise, return to execute step S306.

[0104] S314: Obtain the current on / off status of the second fan group and the third fan group.

[0105] S315. When the third wind group is currently in the shutdown state and the second wind group is currently in the power-on state, the third wind group is determined as the rotation wind group, the timing of the operating time of the first wind group is stopped and the timing is reset, the first wind group is turned off and the rotation wind group is turned on, the IDs of the first wind group and the rotation wind group are swapped to obtain a new first wind group; return to execute step S305.

[0106] S316. When the second wind group is currently in the shutdown state, the second wind group or the third wind group is determined as the rotation wind group, the timing of the operating time of the first wind group is stopped and the timing is reset, the first wind group is turned off and the rotation wind group is turned on, the IDs of the first wind group and the rotation wind group are swapped to obtain a new first wind group; return to execute step S305.

[0107] The embodiment of the present invention randomly selects a group of fans from multiple groups of fans as the first fan group when detecting the system power-on signal of the fuel cell cabin, and turns on the first fan group as the normally open fan group to achieve cooling and ventilation of the cabin under normal working conditions. By obtaining the current cabin ambient temperature value and comparing it with at least one preset temperature threshold, and obtaining the current combustible gas leakage value and comparing it with at least one preset leakage threshold, and then controlling the on / off of other fan groups other than the first fan group in the multiple fan groups according to the comparison result, the number of other fan groups turned on can be adjusted in real time according to the current cabin ambient temperature value and the current combustible gas leakage value, thereby reducing the number of fans turned on at the same time for a long time, thereby saving power resources, and also avoiding the reduction of the effective service life of all fans due to long-term continuous operation. In addition, it also solves the problem that the ventilation speed is too fast due to the full opening of the fan for a long time, so that the combustible gas leakage cannot be effectively monitored. In addition, by timing the running time of the first fan group, and when the preset time threshold is reached, a fan group is determined from other fan groups that are currently in the shutdown state to rotate with the first fan group for operation, thereby avoiding the first fan group, which is a normally-on fan group, from having its effective service life shortened due to long-term continuous operation.

[0108] Embodiment 3

[0109] Figure 4 4 is a flow chart of a fan control device for a fuel cell cabin provided in the third embodiment of the present invention. This embodiment can be applied to real-time control of the opening of corresponding fans according to the current cabin ambient temperature, the current combustible gas leakage value and the fan operation time of the fuel cell cabin to reduce the number of fans that are opened at the same time for a long time. The device can be implemented by software and / or hardware. The device specifically includes: a first control module 401, an operation timing module 402, an information acquisition module 403, a second control module 404 and a third control module 405, wherein,

[0110] The first control module 401 is used to randomly select a group of fans from the plurality of groups of fans as a first fan group when a system power-on signal of the fuel cell cabin is detected, and start the first fan group;

[0111] An operation timing module 402 is used to start timing the operation time of the first wind turbine group;

[0112] The information acquisition module 403 is used to acquire the current timing duration of the operation duration timing, the current cabin ambient temperature value of the fuel cell cabin, and the current combustible gas leakage value;

[0113] A second control module 404, configured to control the on / off of other fan groups except the first fan group among the plurality of fan groups according to the current cabin ambient temperature value and the current combustible gas leakage value;

[0114] The third control module 405 is used to control the first fan group and one of the other fan groups to operate in rotation according to the current timing duration and the on / off status of the second fan group and the third fan group.

[0115] Based on the above embodiments, the second control module 404 includes:

[0116] A first comparison unit, configured to compare the current cabin ambient temperature value with at least one preset temperature threshold;

[0117] A second comparison unit, configured to compare the current combustible gas leakage value with at least one preset leakage threshold;

[0118] The first control unit is used to control the on / off of the other fan groups according to the comparison result.

[0119] On the basis of the above embodiments, the other fan groups include a second fan group and a third fan group, the at least one preset temperature threshold includes a first preset temperature threshold and a second preset temperature threshold, and the at least one preset leakage threshold includes a first preset leakage threshold and a second preset leakage threshold, wherein the first preset temperature threshold is less than the second preset temperature threshold, and the first preset leakage threshold is less than the second preset leakage threshold;

[0120] Accordingly, the first control unit comprises:

[0121] A first control subunit is configured to turn on the second fan unit when the current cabin ambient temperature value is greater than or equal to the first preset temperature threshold, and / or the current combustible gas leakage value is greater than or equal to the first preset leakage threshold; otherwise, turn off the second fan unit;

[0122] The second control subunit is used to turn on the third fan group when the current cabin ambient temperature value is greater than or equal to the second preset temperature threshold, and / or the current combustible gas leakage value is greater than or equal to the second preset leakage threshold; otherwise, turn off the third fan group.

[0123] Based on the above embodiments, the third control module 405 includes:

[0124] A duration comparison unit, used to compare the current timing duration with a preset time threshold;

[0125] A state acquisition unit, configured to acquire the current on / off state of the other fan groups when the current timing duration is greater than or equal to the preset time threshold;

[0126] A fan rotation unit, when at least one of the other fan groups is currently in a shutdown state, randomly selects one of the at least one fan groups to be determined as a rotation fan group, stops timing the operating time of the first fan group and resets the timing, turns off the first fan group and turns on the rotation fan group, exchanges the identity identification ID number of the first fan group with that of the rotation fan group to obtain a new first fan group, and returns to execute the start operation of timing the operating time of the new first fan group.

[0127] Based on the above embodiments, the device further includes:

[0128] The fire linkage module is used to shut down all fans when receiving a fire warning signal sent by the fire monitoring and early warning device.

[0129] The fan control device for a fuel cell cabin provided in an embodiment of the present invention can execute the fan control method for a fuel cell cabin provided in any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method.

[0130] Embodiment 4

[0131] Figure 5 A schematic diagram of a fan control system for a fuel cell cabin provided in Embodiment 4 of the present invention is shown in FIG. Figure 5 As shown, the system includes an input device 501, an output device 502, a plurality of fans 503, a memory 504, and one or more processors 505; the number of processors 505 in the system can be one or more. Figure 5 In the example, a processor 505 is used; the number of fans 503 in the system is multiple groups, Figure 5 In the example, N groups of fans are taken as an example, where N is a natural number greater than or equal to 3; the input device 501, the output device 502, the multiple groups of fans 503, the memory 504, and one or more processors 505 in the system can be connected through a bus or other means. Figure 5 The bus connection is taken as an example. The processor 505 is connected to the input device 501, the output device 502, the plurality of fans 503, and the memory 504 respectively.

[0132] The memory 504, as a computer-readable storage medium, can be used to store software programs, computer executable programs and modules, such as the program instructions / modules corresponding to the fan control method of the fuel cell cabin in the embodiment of the present invention (for example, the first control module 401, the operation timing module 402, the information acquisition module 403, the second control module 404 and the third control module 405 in the fan control device of the fuel cell cabin). The processor 505 executes various functional applications and data processing of the system by running the software programs, instructions and modules stored in the memory 504, that is, realizing the fan control method of the fuel cell cabin mentioned above.

[0133] The memory 504 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system and at least one application required for a function; the data storage area may store data created according to the use of the terminal, etc. In addition, the memory 504 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 504 may further include a memory remotely arranged relative to the processor 505, and these remote memories may be connected to the system via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0134] The input device 501 may be used to receive input digital or character information and generate key signal input related to user settings and function control of the device / terminal / server. The output device 502 may include a display device such as a display screen.

[0135] The fan control system of the fuel cell cabin provided in the embodiment of the present invention can execute the fan control method of the fuel cell cabin provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0136] Embodiment 5

[0137] Figure 6 : is a schematic diagram of the structure of a fuel cell cabin provided in Embodiment 5 of the present invention. Figure 6 As shown, the fuel cell cabin includes: a fan control system 601, multiple groups of fans 602, a temperature measuring device 603 and a combustible gas concentration measuring device 604; the number of fans 602 in the fuel cell cabin is multiple groups, Figure 6 In the example, N groups of fans are taken as an example, where N is a natural number greater than or equal to 3.

[0138] Wherein, the number of fans in each group of fans 602 is at least one;

[0139] The temperature measuring device 603 is used to measure the current cabin environment temperature of the fuel cell cabin in real time;

[0140] The combustible gas concentration measuring device 604 is used to measure the current combustible gas leakage value of the fuel cell cabin in real time;

[0141] The fan control system 601 is respectively connected to the plurality of fan groups 602, the temperature measuring device 603 and the combustible gas concentration measuring device 604, and is used to implement the following fan control method for the fuel cell cabin:

[0142] When a system power-on signal of the fuel cell cabin is detected, a group of fans from the plurality of groups of fans is randomly selected as a first fan group, and the first fan group is turned on;

[0143] Starting to count the running time of the first fan group;

[0144] Obtaining the current timing duration of the operating duration timing, the current cabin ambient temperature value of the fuel cell cabin, and the current combustible gas leakage value;

[0145] According to the current cabin ambient temperature value and the current combustible gas leakage value, controlling the on / off of the second fan group and the third fan group in the plurality of fan groups;

[0146] According to the current timing duration and the on / off status of the second fan group and the third fan group, the first fan group is controlled to rotate with the second fan group or with the third fan group.

[0147] It should be noted that Figure 6 The structure and connection relationship are shown in the figure, but the position relationship is not shown. The actual installation position of the fan on the fuel cell cabin is not limited in the embodiment of the present invention.

[0148] It is worth noting that in the embodiment of the fan control device of the above-mentioned fuel cell cabin, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the present invention.

[0149] The fuel cell cabin provided in the embodiment of the present invention can execute the fan control method of the fuel cell cabin provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0150] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A method for controlling a fan of a fuel cell cabin, wherein the fuel cell cabin comprises a plurality of groups of fans, each group of fans comprises at least one fan, and the method is characterized in that: include: When a system power-on signal of the fuel cell cabin is detected, a group of fans from the plurality of groups of fans is randomly selected as a first fan group, and the first fan group is turned on; Starting to count the running time of the first fan group; Obtaining the current timing duration of the operating duration timing, the current cabin ambient temperature value of the fuel cell cabin, and the current combustible gas leakage value; According to the current cabin ambient temperature value and the current combustible gas leakage value, control the power on and off of other fan groups except the first fan group among the multiple fan groups; According to the current timing duration and the on / off status of the other fan groups, a fan group is determined from the other fan groups that are currently in the off state to rotate with the first fan group.

2. The fan control method of the fuel cell cabin according to claim 1, characterized in that: The controlling the turning on and off of other fan groups other than the first fan group among the plurality of fan groups according to the current cabin ambient temperature value and the current combustible gas leakage value comprises: Comparing the current cabin ambient temperature value with at least one preset temperature threshold; Comparing the current combustible gas leakage value with at least one preset leakage threshold; The other fan groups are controlled to be turned on or off according to the comparison result.

3. The fan control method of the fuel cell cabin according to claim 2, characterized in that: The other fan groups include a second fan group and a third fan group, the at least one preset temperature threshold includes a first preset temperature threshold and a second preset temperature threshold, the at least one preset leakage threshold includes a first preset leakage threshold and a second preset leakage threshold, wherein the first preset temperature threshold is less than the second preset temperature threshold, and the first preset leakage threshold is less than the second preset leakage threshold; Correspondingly, controlling the on / off of the other fan groups according to the comparison result includes: When the current cabin ambient temperature value is greater than or equal to the first preset temperature threshold, and / or the current combustible gas leakage value is greater than or equal to the first preset leakage threshold, turning on the second fan unit; otherwise, turning off the second fan unit; When the current cabin ambient temperature value is greater than or equal to the second preset temperature threshold, and / or the current combustible gas leakage value is greater than or equal to the second preset leakage threshold, turn on the third fan group; otherwise, turn off the third fan group.

4. The fan control method of the fuel cell cabin according to claim 1, characterized in that: The step of determining, based on the current timing duration and the on / off status of the other fan groups, a fan group from the other fan groups that are currently in the off state to rotate with the first fan group for operation includes: Compare the current timing duration with a preset time threshold; When the current timing duration is greater than or equal to the preset time threshold, obtaining the current on / off status of the other fan groups; When at least one of the other fan groups is currently in a shutdown state, one of the at least one fan groups is randomly selected to be the rotation fan group, the timing of the operating time of the first fan group is stopped and the timing is reset, the first fan group is turned off and the rotation fan group is turned on, the identity identification ID number of the first fan group and the rotation fan group are exchanged to obtain a new first fan group, and the start operation of timing the operating time of the new first fan group is returned.

5. The fan control method of the fuel cell cabin according to any one of claims 1 to 4, characterized in that: The fuel cell cabin is provided with a fire monitoring and early warning device, and the method further comprises: When receiving the fire warning signal sent by the fire monitoring and warning device, all fans are turned off.

6. A fan control device for a fuel cell cabin, wherein the fuel cell cabin comprises a plurality of fan groups, each fan group comprises at least one fan, and is characterized in that: include: A first control module, configured to randomly select a group of fans from the plurality of groups of fans as a first fan group when a system power-on signal of the fuel cell cabin is detected, and start the first fan group; An operation timing module, used to start timing the operation time of the first wind turbine group; An information acquisition module, used to acquire the current timing duration of the operating duration timing, the current cabin ambient temperature value of the fuel cell cabin, and the current combustible gas leakage value; A second control module, used for controlling the on / off of other fan groups except the first fan group among the multiple fan groups according to the current cabin ambient temperature value and the current combustible gas leakage value; The third control module is used to determine a fan group from the other fan groups that are currently in the shutdown state to rotate with the first fan group according to the current timing duration and the on / off state of the other fan groups.

7. The fan control device for the fuel cell cabin according to claim 6, characterized in that: The second control module comprises: A first comparison unit, configured to compare the current cabin ambient temperature value with at least one preset temperature threshold; A second comparison unit, configured to compare the current combustible gas leakage value with at least one preset leakage threshold; The first control unit is used to control the on / off of the other fan groups according to the comparison result.

8. The fan control method of the fuel cell cabin according to claim 7, characterized in that: The other fan groups include a second fan group and a third fan group, the at least one preset temperature threshold includes a first preset temperature threshold and a second preset temperature threshold, the at least one preset leakage threshold includes a first preset leakage threshold and a second preset leakage threshold, wherein the first preset temperature threshold is less than the second preset temperature threshold, and the first preset leakage threshold is less than the second preset leakage threshold; Accordingly, the first control unit comprises: A first control subunit is configured to turn on the second fan unit when the current cabin ambient temperature value is greater than or equal to the first preset temperature threshold, and / or the current combustible gas leakage value is greater than or equal to the first preset leakage threshold; otherwise, turn off the second fan unit; The second control subunit is used to turn on the third fan group when the current cabin ambient temperature value is greater than or equal to the second preset temperature threshold, and / or the current combustible gas leakage value is greater than or equal to the second preset leakage threshold; otherwise, turn off the third fan group.

9. A fan control system for a fuel cell cabin, the fuel cell cabin comprising a plurality of fan groups, each group of the fan having at least one fan, characterized in that: include: one or more processors; A storage device for storing one or more programs; The one or more processors are respectively connected to the multiple groups of fans and the storage device, and the one or more programs are executed by the one or more processors, so that the one or more processors control the multiple groups of fans to implement the fan control method of the fuel cell cabin as described in any one of claims 1-5.

10. A fuel cell shelter, characterized in that: include: The fan control system of the fuel cell cabin according to claim 9; A plurality of groups of fans, each group of fans having at least one fan; A temperature measuring device, used to measure the current cabin ambient temperature of the fuel cell cabin in real time; A combustible gas concentration measuring device, used for measuring the current combustible gas leakage value of the fuel cell cabin in real time; The fan control system is respectively connected to a plurality of groups of the fans, the temperature measuring device and the combustible gas concentration measuring device, and is used to implement the fan control method for the fuel cell cabin according to any one of claims 1 to 5.

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