Infrared heating device and fuel cell tail heating device

Abstract

The invention provides an infrared heating device and a fuel cell tail emission heating device, and relates to the technical field of tail gas emission. The infrared heating device comprises a shell, a containing space is defined by the shell, the shell is provided with an inlet and an outlet, the inlet is used for gas entering, and the outlet is used for gas discharging; the infrared heating pipe is arranged in the accommodating space and is used for radiating infrared rays into the accommodating space so as to heat the gas; and the control assembly is electrically connected with the infrared heating tube and used for controlling the infrared heating tube to be turned on or turned off.

Description

Technical Field

[0001] The present application relates to the technical field of tail gas emission, and in particular to an infrared heating device and a fuel cell tail exhaust heating device. Background Art

[0002] At present, fuel cell vehicles produce a lot of water during operation and discharge it into the atmosphere along with the exhaust gas. There is no effect in seasons with high ambient temperatures, but in the winter in the north, the ambient temperature is below 0°C. When the exhaust air is cold, the temperature drops, causing the water vapor in the exhaust air to diffuse and form fog, which causes the exhaust gas discharged from the vehicle to be foggy. This phenomenon is particularly obvious when the fuel cell is running at high power, which seriously hinders the driver's vision of the following vehicle and affects driving safety.

[0003] In the prior art, this phenomenon is mainly addressed by lowering the tail exhaust temperature to allow more water vapor to condense into larger droplets that are discharged in the form of water flow. However, the water flow formed in this way can freeze into ice when the temperature is low, causing the ground to slip and making it dangerous for the following vehicle to drive.

[0004] Therefore, how to provide a device that can prevent automobile exhaust mist from spreading and water from condensing into ice has become an urgent problem to be solved. Summary of the invention

[0005] A technical problem to be solved by the present application is: how to provide a device which can prevent automobile exhaust mist from spreading and water from condensing into ice.

[0006] In order to solve the above technical problems, the present application provides an infrared heating device, comprising:

[0007] A shell body, the shell body encloses a containing space, the shell body has an inlet and an outlet, the inlet is used for the gas to enter, and the outlet is used for the gas to be discharged;

[0008] An infrared heating tube is arranged in the accommodation space to radiate infrared rays into the accommodation space to heat the gas;

[0009] The control component is electrically connected to the infrared heating tube to control the opening or closing of the infrared heating tube.

[0010] In this embodiment, it also includes:

[0011] The first temperature detection module is integrated in the control component and is used to detect the temperature in the accommodation space to obtain a first temperature. The first temperature detection module is connected to the control component and is used to transmit the first temperature to the control component.

[0012] In this embodiment, it also includes:

[0013] The power supply is connected to the control component, the control component controls the power supply to output a first power according to the first temperature, the power supply transmits the first power to the infrared heating tube through the control component, and the infrared heating tube performs infrared heating according to the received first power.

[0014] In this embodiment, when the first temperature is greater than the first preset temperature, the control component controls the power supply to reduce the output power;

[0015] When the first temperature is lower than the first preset temperature, the control component controls the power supply to increase the output power;

[0016] When the first temperature is equal to the first preset temperature, the control component controls the output power of the power supply to remain unchanged.

[0017] In this embodiment, a reflective layer is coated on the inner wall of the shell to reflect infrared rays.

[0018] In this embodiment, at least one infrared heating tube is arranged in the accommodation space;

[0019] When there are multiple infrared heating tubes, multiple infrared heating tube arrays are arranged in the accommodating space.

[0020] In a second aspect, the present application also provides a fuel cell tail exhaust heating device, comprising:

[0021] Battery stack;

[0022] A fuel transmission part, which is used to transmit fuel to the fuel stack so as to react with the fuel stack to generate electrical energy and gas;

[0023] The exhaust part is connected to the fuel cell stack and is used to discharge the gas generated by the fuel cell stack. The exhaust part includes an infrared heating device and a tail exhaust pipeline as mentioned above. The infrared heating device is used to perform infrared heating on the gas generated by the fuel cell stack, and the tail exhaust pipeline is used to discharge the heated gas.

[0024] In this embodiment, it also includes:

[0025] A second temperature detection module, which is arranged on the fuel transmission part and is used to detect the ambient temperature;

[0026] A control device, which is connected to the second temperature detection module and the infrared heating device, and is used to receive the ambient temperature and control the infrared heating device to turn on or off according to the ambient temperature;

[0027] When the ambient temperature is lower than the second preset temperature, the control device controls the infrared heating device to be turned on.

[0028] In this embodiment, it also includes:

[0029] A third temperature detection module, which is disposed at one end of the infrared heating device close to the fuel cell stack and is used to detect a second temperature of the gas transmitted to the infrared heating device;

[0030] The third temperature detection module is connected to the control device to transmit the second temperature to the control device, and the control device controls the heating power of the infrared heating device according to the second temperature and the first preset temperature.

[0031] In this embodiment, it also includes:

[0032] A fourth temperature sensing module, which is disposed between the fuel transmission portion and the fuel cell stack and close to the inlet of the fuel cell stack. The fourth temperature sensing module is used to sense the inlet temperature of the gas at the inlet of the fuel cell stack. The fourth temperature sensing module is also connected to the control device to transmit the inlet temperature to the control device.

[0033] A first pressure sensing module, which is disposed between the fuel transmission portion and the fuel cell stack and close to the inlet of the fuel cell stack. The first pressure sensing module is used to sense the inlet pressure of the gas at the inlet of the fuel cell stack. The first pressure sensing module is also connected to the control device to transmit the inlet pressure to the control device.

[0034] A second pressure sensing module, which is disposed between the fuel cell stack and the exhaust portion and close to the outlet of the fuel cell stack. The second pressure sensing module is used to sense the outlet pressure of the gas at the outlet of the fuel cell stack. The second pressure sensing module is also connected to the control device to transmit the outlet pressure to the control device.

[0035] The control device confirms the outlet temperature of the infrared heating device according to the inlet temperature, the inlet pressure and the outlet pressure, and controls the heating power of the infrared heating device according to the outlet temperature and the first preset temperature.

[0036] Thus, the infrared heating device and fuel cell tail exhaust heating device provided by the present application, the fuel cell tail exhaust heating device includes a battery stack, a fuel transmission part and an exhaust part, the fuel transmission part is used to transmit fuel to the battery stack to react with the battery stack to generate electricity and gas, the gas generated by the reaction of the battery stack can be water vapor, the exhaust part is connected to the battery stack, and is used to discharge the gas generated by the battery stack, the exhaust part includes an infrared heating device and a tail exhaust pipeline, the infrared heating device includes a shell, an infrared heating tube and a control component, the shell forms a accommodating space, the accommodating space is provided with an infrared heating tube, the shell has an inlet and an outlet, the gas enters the accommodating space through the inlet of the shell, the accommodating space is provided with an infrared heating tube, the infrared heating tube is used to radiate infrared rays to the surroundings to achieve heating of the gas entering the accommodating space, after being heated by the infrared heating tube, the gas will be discharged through the outlet of the shell. When the ambient temperature is low, the control component will control the infrared heating device to turn on, so that the infrared heating device can heat the gas generated after the battery stack reaction, so that the temperature of the gas discharged from the tail exhaust is increased, and the gas is prevented from forming water droplets with larger diameters in the process of flowing to the tail exhaust structure, so as to prevent the water droplets with larger diameters from entering the air and forming fog. The infrared heating device provided by the present application can heat the gas to prevent the gas from condensing into water droplets with larger diameters. The water droplets with larger diameters mentioned here will form fog after entering the air, while the water droplets with smaller diameters will mix with the air when entering the air. Due to the small diameter, no fog will be generated. Thus, heating the gas to prevent the gas from condensing into water droplets with larger diameters can allow the gas to be discharged into the atmosphere normally, reduce the generation of fog, avoid the fog of the exhaust gas discharged by the car, and thus avoid obstructing the driving sight of the following car, and reducing the condensation of water vapor can avoid the phenomenon of ground icing caused by excessive water vapor condensing into ice, and avoid the occurrence of danger. And the infrared heating device has high heating efficiency and fast response speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 It is a structural schematic diagram of an infrared heating device disclosed in an embodiment of the present application;

[0039] Figure 2 This is a flow chart of a fuel cell tail exhaust heating device disclosed in an embodiment of the present application.

[0040] Description of reference numerals:

[0041] 100. Fuel cell tail exhaust heating device; 1. Infrared heating device; 11. Shell; 111. Inlet; 112. Outlet; 113. Accommodation space; 12. Infrared heating tube; 13. Control component; 14. First temperature detection module; 15. Power supply; 2. Fuel cell stack; 3. Fuel transmission part; 31. Filter; 32. Flow meter; 33. Air compressor; 34. Intercooler; 35. Shut-off valve; 4. Exhaust part; 41. Back pressure valve; 42. Muffler; 44. Tail exhaust pipeline; 5. Fourth temperature sensing module; 6. First pressure sensing module; 7. Second pressure sensing module. DETAILED DESCRIPTION

[0042] The following is a further detailed description of the implementation methods of the present application in conjunction with the accompanying drawings and examples. The detailed descriptions of the following examples and the accompanying drawings are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application. The present application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0043] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0044] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing this application 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 cannot be understood as a limitation on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0045] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0046] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0047] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0048] In the related art, fuel cell vehicles will generate a large amount of gas during operation and discharge it into the atmosphere along with the tail gas. There is no effect in seasons with high ambient temperatures, but the ambient temperature in the north in winter is below 0°C. The tail air will be cooled, which will cause the temperature to drop, so that the gas in the tail air will condense to form water vapor, resulting in foggy exhaust from the vehicle. This phenomenon is particularly obvious when the fuel cell is operating in a high-power state, which seriously hinders the driving vision of the following vehicle and affects driving safety. In response to this phenomenon, the present application provides an infrared heating device that can heat the gas generated by the fuel cell reaction, reduce the condensation of water vapor in the gas, and thus reduce the generation of fog, avoid fogging of the exhaust gas discharged from the vehicle, and thus avoid obstructing the driving vision of the following vehicle. Reducing the condensation of water vapor can avoid the problem of the tail outlet being blocked due to excessive water vapor condensing into ice.

[0049] In this embodiment, the ambient temperature may be 5 degrees Celsius.

[0050] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0051] like Figure 1 As shown, the present application provides an infrared heating device 1, comprising:

[0052] A housing 11, wherein the housing 11 encloses a receiving space 113, and the housing 11 has an inlet 111 and an outlet 112, wherein the inlet 111 is used for gas to enter, and the outlet 112 is used for gas to be discharged;

[0053] An infrared heating tube 12, which is disposed in the accommodation space 113 and is used to radiate infrared rays into the accommodation space 113 to heat the gas;

[0054] The control component 13 is electrically connected to the infrared heating tube 12 to control the opening or closing of the infrared heating tube 12 .

[0055] In this embodiment, the fuel cell uses hydrogen and oxygen as fuel, and is a chemical device that directly converts the chemical energy of the fuel into electrical energy through a chemical reaction at the interface of the positive electrode and the negative electrode. As environmental problems become increasingly serious, fuel cells have received widespread attention as an efficient and environmentally friendly power generation technology, and are currently widely used in manned spaceflight, underwater submarines, distributed power stations, and rail transit. Fuel cell vehicles will produce a large amount of gas during operation and discharge it into the atmosphere with the tail gas, which has no effect in seasons with higher ambient temperatures. In winter, the ambient temperature in the north is below 0°C, and the temperature of the tail air drops due to the cold. The condensation of water vapor in the tail air will cause the exhaust gas discharged from the car to be foggy.

[0056] In this embodiment, the infrared heating tube 12 is heated by infrared heating technology. Infrared heating technology is a method of heating by infrared radiation. Its basic principle is to irradiate the infrared rays emitted by the infrared radiator onto the heated object to heat the object. The principle of infrared heating mainly depends on the absorption of light by the object. When the wavelength of the emitted infrared rays is close to or equal to the molecular bond distance of the heated object, the molecules of the object resonate, thereby effectively heating the object. Compared with traditional heating methods, this heating method has the advantages of high efficiency, energy saving, and environmental protection. The infrared heating tube 12 can be a tubular structure or a sheet structure. As long as it can emit infrared rays, the gas in the containing space 113 can be infrared heated.

[0057] In this embodiment, the housing 11 may be a plastic housing 11 or a housing 11 made of other materials, as long as it does not affect the heating of the gas by the infrared heating tube 12. The shape of the housing 11 may be a regular shape or an irregular shape.

[0058] The present application provides an infrared heating device 1, comprising a housing 11, an infrared heating tube 12 and a control component 13. The housing 11 is formed with a receiving space 113, and the receiving space 113 is provided with an infrared heating tube 12. The housing 11 has an inlet 111 and an outlet 112. Gas enters the receiving space 113 through the inlet 111 of the housing 11. The receiving space 113 is provided with an infrared heating tube 12. The infrared heating tube 12 is used to radiate infrared rays to the surroundings to achieve heating of the gas entering the receiving space 113. After being heated by the infrared heating tube 12, the gas will be discharged through the outlet 112 of the housing 11. When the ambient temperature is low, the control component 13 will control the infrared heating device 1 to turn on, so that the infrared heating device 1 can heat the gas generated after the reaction of the battery stack 2, so that the temperature of the gas discharged from the tail exhaust is increased, and the gas is prevented from forming water droplets with larger diameters in the process of flowing to the tail exhaust structure, thereby preventing the water droplets with larger diameters from entering the air and forming mist. The infrared heating device 1 provided in the present application can heat the gas to prevent the gas from condensing into water droplets with larger diameters, so that the gas can be discharged into the atmosphere normally, reducing the generation of fog, and preventing the exhaust fog from the car from being diffused, thereby avoiding obstruction of the driving vision of the following vehicle. Reducing the condensation of water vapor can avoid the phenomenon of ground freezing caused by excessive water vapor condensing into ice, thereby avoiding the occurrence of danger.

[0059] In the embodiment of the present application, it also includes:

[0060] A first temperature detection module 14, which is integrated in the control component 13 and is used to detect the temperature in the accommodation space 113 to obtain a first temperature. The first temperature detection module 14 is connected to the control component 13 and is used to transmit the first temperature to the control component 13;

[0061] The power supply 15 is connected to the control component 13. The control component 13 controls the output of the first power of the power supply 15 according to the first temperature. The power supply 15 transmits the first power to the infrared heating tube 12 through the control component 13. The infrared heating tube 12 performs infrared heating according to the received first power.

[0062] In this embodiment, the temperature sensing module may be a temperature sensor, and may have a probe extending into the housing space 113 of the housing 11, and the temperature sensing module may be arranged near the outlet 112 of the housing 11, so that after the housing space 113 is heated by the infrared heating tube 12, the temperature sensing module may detect the heated temperature. The power supply 15 may be set as a vehicle-mounted power supply 15 or a fuel cell, etc. according to actual needs. As long as the corresponding power can be output to the control component 13 according to the control of the control component 13, it is sufficient.

[0063] In this embodiment, the infrared heating device 1 includes a shell 11, an infrared heating tube 12, a control component 13, a first temperature detection module 14 and a power supply 15. The shell 11 encloses a accommodating space 113, in which the infrared heating tube 12 is arranged. The control component 13 is arranged outside the shell 11, and the first temperature detection module 14 is integrated in the control component 13. The first temperature detection module 14 senses the temperature in the accommodating space 113 in real time, so that the temperature of the gas received in the accommodating space 113 can be obtained in real time, and the temperature can be transmitted to the control component 13 in real time. The control component 13 is connected to the power supply 15. After the control component 13 receives the first temperature detected by the first temperature detection module 14, the power supply 15 is controlled to output a first power according to the first temperature and the first preset temperature set in the control component 13, so that the power supply 15 outputs the first power to the control component 13 according to the control of the control component 13, and the control component 13 then transmits the first power to the infrared heating tube 12. The infrared heating tube 12 radiates infrared rays outward according to the first power, so that the infrared heating tube 12 can heat the gas in the containing space 113 to the first preset temperature, thereby realizing the infrared heating function of the infrared heating device 1.

[0064] In the embodiment of the present application, when the first temperature is greater than the first preset temperature, the control component 13 controls the power supply 15 to reduce the output power;

[0065] When the first temperature is lower than the first preset temperature, the control component 13 controls the power supply 15 to increase the output power;

[0066] When the first temperature is equal to the first preset temperature, the control component 13 controls the output power of the power supply 15 to remain unchanged.

[0067] In this embodiment, the first preset temperature is the temperature that the gas in the infrared heating device 1 is intended to reach.

[0068] In this embodiment, when the infrared heating tube 12 performs infrared heating on the accommodation space 113, the first temperature detection module 14 will detect the temperature of the accommodation space 113 in real time. When the first temperature detected by the first temperature detection module 14 is greater than the first preset temperature, the first power output by the power supply 15 is high. At this time, the control component 13 controls the output power of the power supply 15 to decrease, so that the infrared rays emitted by the infrared heating tube 12 are reduced, so that the degree of heating of the gas in the accommodation space 113 can be reduced, so that the first temperature is reduced to reach the first preset temperature; when the first temperature detected by the first temperature detection module 14 is less than the first preset temperature, the first power output by the power supply 15 is low. At this time, the control component 13 controls the output power of the power supply 15 to increase, so that the infrared rays emitted by the infrared heating tube 12 are increased, so that the degree of heating of the gas in the accommodation space 113 can be strengthened, so that the first temperature is increased to reach the first preset temperature; when the first temperature detected by the first temperature detection module 14 is equal to the first preset temperature, the first power output by the power supply 15 is just right, and the first temperature is equal to the first preset temperature. At this time, the output power of the power supply 15 controlled by the control component 13 can be kept unchanged. Thus, the infrared heating tube 12 can be controlled to heat the accommodation space 113 to the first preset temperature, and the temperature can be adjusted in time when the temperature in the accommodation space 113 changes, so that the temperature in the accommodation space 113 is always maintained at the first preset temperature. Thus, the heating power can be adjusted according to demand to improve the energy utilization efficiency.

[0069] In the embodiment of the present application, a reflective layer is coated on the inner wall of the housing 11 for reflecting infrared rays.

[0070] In this embodiment, the material of the reflective layer can be set according to demand, can reflect infrared rays, and is suitable for production and application, and is not limited here.

[0071] In this embodiment, the setting of the reflective layer can reflect the infrared rays incident on the inner wall of the shell 11, so that more infrared rays can be irradiated to the gas in the accommodation space 113, thereby improving the heating effect and accelerating the heating speed, so that the gas in the accommodation space 113 reaches the first preset temperature.

[0072] In the embodiment of the present application, at least one infrared heating tube 12 is disposed in the accommodation space 113;

[0073] When there are multiple infrared heating tubes 12 , the multiple infrared heating tubes 12 are arranged in an array in the accommodation space 113 .

[0074] In this embodiment, the number of infrared heating tubes 12 can be one or more. The number of infrared heating tubes 12 is set according to the size of each infrared heating tube 12 and the space in the accommodation space 113. The more infrared heating tubes 12 there are, the faster the heating speed is. However, if the number of infrared heating tubes 12 is too large, too much space will be occupied, resulting in a smaller space for storing gas in the accommodation space 113. Therefore, it is necessary to appropriately set the number and position of the infrared heating tubes 12 to speed up the heating speed while ensuring that there is enough space in the accommodation space 113 to store gas.

[0075] In this embodiment, when there are multiple infrared heating tubes 12, the infrared heating tubes 12 can be arranged in an array in the accommodating space 113. There can be two infrared heating tubes 12, and both infrared heating tubes 12 can be attached to the inner wall of the shell 11 and arranged relative to each other, so that the gas in the accommodating space 113 of the shell 11 can be heated, and the infrared rays emitted by the infrared heating tubes 12 are reflected after hitting the reflective layer on the inner wall of the shell 11, and continue to heat the gas in the accommodating space 113.

[0076] On the other hand, the present application also provides a fuel cell tail exhaust heating device 100, comprising:

[0077] Battery stack 2;

[0078] A fuel transmission part 3, which is used to transmit fuel to the fuel cell stack 2 so as to react with the fuel cell stack 2 to generate electrical energy and gas;

[0079] The exhaust part 4 is connected to the fuel cell stack 2 and is used to discharge the gas generated by the fuel cell stack 2. The exhaust part 4 includes the infrared heating device 1 and the tail exhaust pipe 44 as mentioned above. The infrared heating device 1 is used to perform infrared heating on the gas generated by the fuel cell stack 2, and the tail exhaust pipe 44 is used to discharge the heated gas.

[0080] In this embodiment, the fuel transmission part 3 includes a filter 31, a flow meter 32, an air compressor 33, an intercooler 34 and a stop valve 35 connected in sequence. The gas enters the fuel transmission part 3 from the inlet of the filter 31. The filter 31 is used to remove impurities such as dust and harmful gases in the intake air, and then transmits it to the flow meter 32. The flow meter 32 is used to monitor the intake flow of the fuel stack 2, and then transmits the intake air to the air compressor 33. The air compressor 33 is used to compress the air flowing through so that the gas forms a gas with a certain temperature and pressure. The gas of a certain temperature and pressure will be transmitted from the air compressor 33 to the intercooler 34. The intercooler 34 is used to perform heat exchange with the gas of a certain temperature and pressure through the coolant to reduce the temperature of the gas and prevent the high temperature gas from entering the stack 2 and causing damage to the stack 2. The stop valve 35 is used to regulate the flow rate and pressure of the gas flowing to the stack 2 so that the gas is delivered to the stack 2 at a suitable flow rate and pressure, reacts with the stack 2, directly converts chemical energy into electrical energy, realizes power supply, and generates gas while realizing power supply. The gas is discharged from the stack 2 through the exhaust part 4.

[0081] In this embodiment, the exhaust part 4 includes a back pressure valve 41, a muffler 42, an infrared heating device 1 and a tail exhaust pipe 44 which are connected in sequence. The gas generated by the reaction of the fuel cell stack 2 will be transmitted to the muffler 42 through the back pressure valve 41. The back pressure valve 41 is used to control the flow and pressure of the gas transmitted from the fuel cell stack 2. The muffler 42 is used to reduce the noise of the gas flowing through the tail exhaust pipe 44. The temperature of the tail exhaust gas passing through the muffler 42 is relatively low, and a large amount of condensed water is generated. At this time, the gas with a large amount of condensed water will be transmitted to the infrared heating device 1. After being heated by the infrared heating device 1, a large amount of condensed water will become gas, and the gas temperature will increase. At this time, the gas with increased temperature will be discharged through the tail exhaust pipe 44.

[0082] Therefore, the present application provides a fuel cell tail exhaust heating device 100, in which the fuel transmitted through the fuel transmission part 3 reacts with the fuel stack 2 to generate electricity and gas. The gas generated by the reaction of the fuel stack can be water vapor, and the gas is discharged through the exhaust part 4. Since the exhaust part 4 includes an infrared heating device 1, the infrared heating device 1 can heat the gas. The gas after the temperature is increased increases the saturated vapor pressure of water, thereby preventing the gas from condensing into water droplets with larger diameters, so that the gas can be discharged into the atmosphere normally, reducing the generation of fog, and avoiding the spread of fog in the exhaust gas discharged by the car, thereby avoiding obstruction of the driving vision of the following vehicle. Reducing the condensation of water vapor can avoid the phenomenon of ground freezing caused by excessive water vapor condensing into ice, thereby avoiding the occurrence of danger.

[0083] In the embodiment of the present application, it also includes:

[0084] A second temperature detection module, which is arranged on the fuel transmission part 3 and is used to detect the ambient temperature;

[0085] A control device, which is connected to the second temperature detection module and the infrared heating device 1, and is used to receive the ambient temperature and control the infrared heating device 1 to turn on or off according to the ambient temperature;

[0086] When the ambient temperature is lower than the second preset temperature, the control device controls the infrared heating device 1 to be turned on.

[0087] In this embodiment, the second temperature detection module may be a temperature sensor for sensing the ambient temperature. The control device is a control system of the entire fuel cell tail exhaust heating device 100, which is used to control various structures of the fuel cell tail exhaust heating device 100 and may be a PLC or the like.

[0088] In this embodiment, the fuel cell tail exhaust heating device 100 includes a fuel cell stack 2, a fuel transmission part 3, an exhaust part 4, a second temperature detection module and a control device. The second temperature detection module can be integrated on the flow meter 32 to detect the ambient temperature. The control device is connected to the second temperature detection module to receive the ambient temperature. When the ambient temperature is less than the second preset temperature, it can be determined to enter the winter mode. The control device is also connected to the infrared heating device 1. When the ambient temperature is less than the second preset temperature, the control device controls the infrared heating device 1 to turn on so that the infrared heating device 1 heats the gas.

[0089] In the embodiment of the present application, it also includes:

[0090] A third temperature detection module, which is disposed at one end of the infrared heating device 1 close to the battery stack 2 and is used to detect a second temperature of the gas transmitted to the infrared heating device 1;

[0091] The third temperature detection module is connected to the control device to transmit the second temperature to the control device, and the control device controls the heating power of the infrared heating device 1 according to the second temperature and the first preset temperature.

[0092] In this embodiment, the third temperature detection module can be a temperature sensor, which can be arranged between the muffler 42 and the infrared heating device 1, and is used to detect the temperature of the gas entering the infrared heating device 1, which can be a second temperature, and the second temperature can be transmitted to the control device. The control device controls the power provided by the power supply 15 according to the second temperature and the first preset temperature to which the infrared heating device 1 wants to heat, so that the infrared heating device 1 can heat the gas to the first preset temperature, and then the gas with the first preset temperature can be discharged through the tail exhaust pipe 44.

[0093] In the embodiment of the present application, it also includes:

[0094] A fourth temperature sensing module 5, which is disposed between the fuel transmission portion 3 and the fuel cell stack 2 and close to the inlet of the fuel cell stack 2. The fourth temperature sensing module 5 is used to sense the inlet temperature of the gas at the inlet of the fuel cell stack 2. The fourth temperature sensing module 5 is also connected to the control device to transmit the inlet temperature to the control device;

[0095] A first pressure sensing module 6, which is disposed between the fuel transmission portion 3 and the fuel cell stack 2 and close to the inlet of the fuel cell stack 2. The first pressure sensing module 6 is used to sense the inlet pressure of the gas at the inlet of the fuel cell stack 2. The first pressure sensing module 6 is also connected to the control device to transmit the inlet pressure to the control device;

[0096] A second pressure sensing module 7, which is disposed between the fuel cell stack 2 and the exhaust portion 4 and close to the outlet of the fuel cell stack 2. The second pressure sensing module 7 is used to sense the outlet pressure of the gas at the outlet of the fuel cell stack 2. The second pressure sensing module 7 is also connected to the control device to transmit the outlet pressure to the control device;

[0097] The control device confirms the outlet temperature of the infrared heating device 1 according to the inlet temperature, the inlet pressure and the outlet pressure, and controls the heating power of the infrared heating device 1 according to the outlet temperature and the first preset temperature.

[0098] In this embodiment, the fourth temperature sensing module 5 may be a temperature sensor, and the first pressure sensing module 6 and the second pressure sensing module 7 may both be pressure sensors.

[0099] In this embodiment, the fourth temperature sensing module 5 and the first pressure sensing module 6 are arranged at the inlet of the battery stack 2 for sensing the temperature and pressure at the inlet of the battery stack 2. The second pressure sensing module 7 is arranged at the outlet of the battery stack 2 for sensing the pressure at the outlet of the battery stack 2. The fourth temperature sensing module 5, the first pressure sensing module 6 and the second pressure sensing module 7 are all connected to the control device. The control device obtains the outlet temperature according to the inlet temperature, the inlet pressure and the outlet pressure. The outlet temperature is basically the same as the temperature transmitted to the infrared heating device 1. The control device is connected to the control component 13 in the infrared heating device 1, so that the control component 13 controls the power provided by the power supply 15 according to the outlet temperature and the first preset temperature that the infrared heating device 1 wants to heat to, so that the infrared heating device 1 can heat the gas to the first preset temperature, and then the gas with the first preset temperature can be discharged through the tail exhaust pipe 44.

[0100] So far, various embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed herein.

[0101] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. An infrared heating device, characterized in that: include: A shell (11), the shell (11) encloses a containing space (113), the shell (11) has an inlet (111) and an outlet (112), the inlet (111) is used for gas to enter, and the outlet (112) is used for gas to exit; an infrared heating tube (12), the infrared heating tube (12) being arranged in the accommodation space (113) and used for radiating infrared rays into the accommodation space (113) to heat the gas; A control component (13), wherein the control component (13) is electrically connected to the infrared heating tube (12) and is used to control the opening or closing of the infrared heating tube (12).

2. The infrared heating device according to claim 1, characterized in that: Also includes: A first temperature detection module (14), the first temperature detection module (14) is integrated in the control component (13), and is used to detect the temperature in the containing space (113) to obtain a first temperature; the first temperature detection module (14) is connected to the control component (13), and is used to transmit the first temperature to the control component (13).

3. The infrared heating device according to claim 1, characterized in that: Also includes: A power supply (15), wherein the power supply (15) is connected to the control component (13), wherein the control component (13) controls the power supply (15) to output a first power according to a first temperature, wherein the power supply (15) transmits the first power to the infrared heating tube (12) through the control component (13), and the infrared heating tube (12) performs infrared heating according to the received first power.

4. The infrared heating device according to claim 3, characterized in that: When the first temperature is greater than a first preset temperature, the control component (13) controls the power supply (15) to reduce output power; When the first temperature is lower than a first preset temperature, the control component (13) controls the power supply (15) to increase output power; When the first temperature is equal to the first preset temperature, the control component (13) controls the output power of the power supply (15) to remain unchanged.

5. The infrared heating device according to claim 1, characterized in that: The inner wall of the shell (11) is coated with a reflective layer for reflecting infrared rays.

6. The infrared heating device according to claim 1, characterized in that: At least one infrared heating tube (12) is arranged in the accommodation space (113); When there are multiple infrared heating tubes (12), the multiple infrared heating tubes (12) are arranged in an array in the accommodation space (113).

7. A fuel cell tail exhaust heating device, characterized in that: include: Battery stack (2); A fuel transmission part (3), the fuel transmission part (3) is used to transmit fuel to the fuel cell stack (2) so as to react with the fuel cell stack (2) to generate electrical energy and gas; An exhaust portion (4), the exhaust portion (4) being connected to the fuel cell stack (2) and being used for exhausting the gas generated by the fuel cell stack (2), the exhaust portion (4) comprising an infrared heating device (1) as described in any one of claims 1 to 6 and a tail exhaust pipe (44), the infrared heating device being used for performing infrared heating on the gas generated by the fuel cell stack (2), and the tail exhaust pipe (44) being used for exhausting the heated gas.

8. The fuel cell tail exhaust heating device according to claim 7, characterized in that: Also includes: a second temperature detection module, the second temperature detection module being arranged on the fuel transmission part (3) and being used for detecting the ambient temperature; A control device, the control device is connected to the second temperature detection module and the infrared heating device, and is used to receive the ambient temperature and control the infrared heating device to be turned on or off according to the ambient temperature; When the ambient temperature is lower than the second preset temperature, the control device controls the infrared heating device to be turned on.

9. The fuel cell tail exhaust heating device according to claim 8, characterized in that: Also includes: a third temperature detection module, the third temperature detection module being arranged at one end of the infrared heating device close to the battery stack (2) and being used for detecting a second temperature of the gas transmitted to the infrared heating device; The third temperature detection module is connected to the control device to transmit the second temperature to the control device, and the control device controls the heating power of the infrared heating device according to the second temperature and the first preset temperature.

10. The fuel cell tail exhaust heating device according to claim 8, characterized in that: Also includes: a fourth temperature sensing module, the fourth temperature sensing module being arranged between the fuel transmission part (3) and the fuel cell stack (2) and being arranged close to the inlet of the fuel cell stack (2), the fourth temperature sensing module being used to sense the inlet temperature of the gas at the inlet of the fuel cell stack (2), the fourth temperature sensing module being also connected to the control device so as to transmit the inlet temperature to the control device; a first pressure sensing module (6), the first pressure sensing module (6) being arranged between the fuel transmission part (3) and the fuel cell stack (2) and being arranged close to the inlet of the fuel cell stack (2), the first pressure sensing module (6) being used to sense the inlet pressure of the gas at the inlet of the fuel cell stack (2), the first pressure sensing module (6) being also connected to the control device to transmit the inlet pressure to the control device; a second pressure sensing module (7), the second pressure sensing module (7) being arranged between the fuel cell stack (2) and the exhaust portion (4) and being arranged close to the outlet of the fuel cell stack (2), the second pressure sensing module (7) being used to sense the outlet pressure of the gas at the outlet of the fuel cell stack (2), the second pressure sensing module (7) being also connected to the control device to transmit the outlet pressure to the control device; The control device confirms the outlet temperature of the infrared heating device according to the inlet temperature, the inlet pressure and the outlet pressure, and the control device controls the heating power of the infrared heating device according to the outlet temperature and a first preset temperature.

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