Exhaust treatment device of fuel cell system

Abstract

The utility model discloses an exhaust treatment device of a fuel cell system, and relates to the technical field of fuel cells. The heat exchanger comprises an exhaust pipe, a heat exchange assembly is arranged at the air inlet end of the exhaust pipe, and a discharging assembly is arranged at the air outlet end of the exhaust pipe. The air outlet end of a heat exchange outer pipe in the heat exchange assembly is fixedly connected to the air inlet end of the exhaust pipe, the air inlet end of the heat exchange outer pipe is fixedly connected with a detection shell, an inner pipe is fixedly connected to the center of the interior of the heat exchange outer pipe, and one side of the interior of the heat exchange outer pipe is fixedly connected with a driving shell. The transmission rod in the heat exchange assembly drives the blocking piece to rotate, the inner pipe is blocked through the blocking piece, contact between exhaust gas and the heat exchange outer pipe is controlled, the problem that mist of the exhaust gas is inconvenient to solve in the prior art is solved, and the service life of the exhaust gas is prolonged. The drainage temperature in the water tank is controlled through a resistance wire in the drainage assembly, and the problem that in the prior art, freezing of the water tank and the road surface caused by too low water temperature is inconvenient to avoid is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fuel cells, and in particular relates to an exhaust gas processing device of a fuel cell system. Background Art

[0002] A fuel cell is a power generation device that converts the chemical energy of fuel and oxidant directly into electrical energy through an electrochemical reaction. It is also called an electrochemical generator. It is the fourth power generation technology after hydropower, thermal power generation and atomic power generation. In theory, fuel cells can operate at a thermal efficiency close to 100% and are very economical. They are often used in the automotive industry, energy generation, shipbuilding industry, aerospace, household power supply and other industries.

[0003] A document with an existing publication number of CN116154223A discloses a hydrogen fuel cell exhaust system and a vehicle, wherein the exhaust system includes an exhaust pipe provided with a muffler, wherein the exhaust pipe is provided with a gas-water separation structure upstream of the muffler; the gas-water separation structure includes a pipe expansion portion, a polymerization spoiler and an automatic drainage structure, wherein the outlet port diameter of the pipe expansion portion is larger than the inlet port diameter thereof so as to precipitate water in the airflow; the polymerization spoiler is arranged inside the pipe expansion portion, and is used to make the airflow perform centrifugal motion through turbulence, so as to separate gas and water, and make the separated water flow along the inner wall of the exhaust pipe to a drainage area; the automatic drainage structure is arranged in the drainage area, and is used to discharge the water accumulated in the drainage area to the outside.

[0004] However, there are the following defects in use:

[0005] 1. A hydrogen fuel cell exhaust system and a car disclosed in the above document, when in use, the above document mentions that the gas-water separation structure includes a pipeline expansion part, a polymerization spoiler and an automatic drainage structure, and the polymerization spoiler includes a spoiler sleeve and a polymerization spoiler blade arranged inside the spoiler sleeve, and the polymerization spoiler blade is arranged and distributed in a circumferential rotation with the central axis of the spoiler sleeve as the center of the circle, and the moisture in the airflow is separated by the polymerization spoiler, and the moisture accumulated in the drainage area is discharged by the automatic drainage structure, so that the gas-water separation effect is achieved, but it cannot process the mist in the exhaust gas, and the vision of the rear vehicle is affected due to the presence of the mist;

[0006] 2. A hydrogen fuel cell exhaust system and automobile disclosed in the above document, when in use, the above document mentions that the automatic drainage structure includes a drain valve, and the drain valve includes a water accumulation basin, a drain port is provided at the bottom of the water accumulation basin, and an elastic drainage diaphragm is provided on the inner wall of the drain port, and the water is automatically discharged through the drain port and the drainage diaphragm in the water accumulation basin, but the water temperature cannot be adjusted according to the external temperature during the discharge process, which makes the inside of the water tank easy to freeze. At the same time, since the water is automatically discharged onto the road surface, it may cause road icing, affecting driving safety. Utility Model Content

[0007] The utility model aims to provide an exhaust treatment device for a fuel cell system, in which a baffle is driven to rotate by a transmission rod in a heat exchange component, and an inner tube is blocked by the baffle, thereby controlling the contact between the exhaust gas and the outer heat exchange tube, solving the existing problem of inconvenience in solving the exhaust mist, and controlling the drainage temperature in the water tank by a resistance wire in the discharge component, solving the existing problem of inconvenience in avoiding icing of the water tank and the road surface due to too low water temperature.

[0008] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0009] The utility model is an exhaust gas treatment device of a fuel cell system, comprising an exhaust pipe, an air inlet end of the exhaust pipe is provided with a heat exchange component, and an air outlet end of the exhaust pipe is provided with an exhaust component;

[0010] The exhaust gas duct is connected with the exhaust gas duct at the bottom of the heat exchanger, and the exhaust gas duct is connected with the exhaust gas duct at the bottom of the heat exchanger to form a hollow tube. The inner tube has the hollow tube and the exhaust gas duct is connected with the hollow tube by a screw thread. The hollow tube has a first end and a second end. The hollow tube has a second end. The hollow tube has a second end.

[0011] The water tank in the discharge assembly is located below the exhaust pipe, a feed hopper is fixedly connected to one side of the top of the water tank, the top of the feed hopper is fixedly connected to the outlet end of the exhaust pipe, a resistance wire is fixedly connected to the lower part of the interior of the water tank, a discharge pipe is fixedly connected to the inner center of the water tank, a conical cover is fixedly connected to the top of one end of the discharge pipe, a plurality of overflow holes are provided at equal intervals in the circumferential direction on the upper outer surface of one end of the discharge pipe, and the other end of the discharge pipe passes through one outer wall of the water tank and extends to the outside of the water tank.

[0012] The utility model is further configured as follows: a plurality of groups of outer fins are welded at equal intervals along the circumferential direction on the outer wall of the heat exchange outer tube, a plurality of groups of inner fins are welded at equal intervals along the circumferential direction on the inner wall of the heat exchange outer tube, and the inner fins are distributed in a spiral shape.

[0013] The utility model is further configured as follows: a connecting pipe is passed through the outer wall of the detection shell at one side away from the heat exchange outer tube, and a flange is welded to one end of the connecting pipe away from the detection shell.

[0014] The utility model is further configured as follows: a temperature and humidity sensor is fixedly connected to the front end surface of the detection shell, a first detection probe is fixedly connected to the rear end surface of the temperature and humidity sensor, and an end of the first detection probe away from the temperature and humidity sensor penetrates the front end surface of the detection shell and extends to the interior of the detection shell.

[0015] The utility model is further configured as follows: first connection blocks are welded at both ends of the inner tube, and one end of the first connection block away from the inner tube is respectively welded to the inner wall of the heat exchange outer tube.

[0016] The utility model is further configured as follows: a plurality of second connection blocks are welded at equal intervals along the circumferential direction at one end of the driving shell located outside the inner tube, and an end of the second connection block away from the driving shell is welded to the inner wall of the heat exchange outer tube.

[0017] The utility model is further configured as follows: a battery shell is welded under the outer wall on the other side of the water tank, a storage battery is fixedly connected to the inside of the battery shell, and both ends of the resistance wire pass through the lower side of the outer wall on the other side of the water tank and are electrically connected to the storage battery.

[0018] The utility model is further configured as follows: a drain pipe is passed through one side of the bottom of the water tank, one end of the drain pipe extends to the lower part of the water tank, and the other end of the drain pipe is fixedly connected to a solenoid valve.

[0019] The utility model is further configured as follows: a plurality of third connection blocks are welded at equal intervals along the circumferential direction on the outer side surface of one end of the discharge pipe, the third connection blocks are located above the overflow hole, and one end of the third connection block away from the discharge pipe is welded to the inner wall of the conical cover.

[0020] The utility model is further configured as follows: a water temperature sensor and a water level sensor are fixedly connected to the front end of the other side of the top of the water tank, and a second detection probe is fixedly connected to the bottom of the water temperature sensor and the water level sensor, and the bottom end of the second detection probe passes through the top of the water tank and extends to the lower part of the interior of the water tank.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model sets a heat exchange component, detects the exhaust temperature and humidity of the fuel cell through the temperature and humidity sensor in the detection shell, calculates the dew point temperature according to the exhaust temperature and humidity, and judges whether atomization occurs by comparing the dew point temperature with the external ambient temperature. When the ambient temperature is greater than the dew point temperature, the drive motor drives the baffle to rotate through the transmission rod, so that the exhaust gas quickly passes through the heat exchange outer tube and the inner tube into the exhaust pipe for discharge. When the ambient temperature is lower than the dew point temperature, the drive motor drives the baffle to rotate through the transmission rod to close the inner tube, increase the contact between the exhaust gas and the inner fin, and then increase condensation, change the conditions affecting the dew point temperature, and achieve the purpose of eliminating exhaust mist.

[0023] 2. The utility model sets a discharge component. When the ambient temperature is lower than 5°C, the resistance wire is started. The resistance wire generates heat after being energized, thereby heating the accumulated water in the water tank. The water temperature in the water tank is detected by the water temperature sensor. When the water temperature is heated to 10°C, the resistance wire is closed, and the solenoid valve is opened at the same time, so that the accumulated water in the water tank is discharged to the road surface through the drain pipe. When the ambient temperature is higher than 5°C, the solenoid valve is directly opened for drainage, which effectively avoids the phenomenon of ice on the water tank and the road surface. At the same time, when the water level in the water tank is too high and the driver forgets to drain the water, the accumulated water enters the discharge pipe through the overflow hole, and the water vapor is discharged together through the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0025] Figure 1 It is a structural schematic diagram of an exhaust gas treatment device of a fuel cell system;

[0026] Figure 2 It is a partial cross-sectional view of the heat exchange component of the utility model;

[0027] Figure 3 It is a side view of the heat exchange outer tube of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the detection shell of the utility model;

[0029] Figure 5This is a schematic diagram of the structure of the inner tube of the utility model;

[0030] Figure 6 This is a structural disassembly diagram of the drive housing of the utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the baffle of the utility model;

[0032] Figure 8 It is a partial cross-sectional view of the discharge assembly of the utility model;

[0033] Fig. 9 This is a schematic diagram of the structure of the water tank of the utility model;

[0034] Fig.10 This is a schematic diagram of the structure of the discharge pipe of the utility model;

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] 100, exhaust pipe; 200, heat exchange assembly; 201, heat exchange outer pipe; 2011, outer fin; 2012, inner fin; 2013, motor housing; 202, detection housing; 2021, temperature and humidity sensor; 2022, first detection probe; 2023, connecting pipe; 2024, flange; 203, inner pipe; 2031, first connecting block; 204, drive housing; 2041, second connecting block; 205, transmission rod; 2051, first bevel gear; 2052, second bevel gear; 2053, driving motor; 2054, rotating shaft; 206, baffle; 2061, mounting rod; 300, discharge assembly; 301, water tank; 3011, feed hopper; 3012, battery shell; 3013, drain pipe; 3014, solenoid valve; 302, resistance wire; 3021, battery; 303, discharge pipe; 3031, cone cover; 3032, third connecting block; 3033, overflow hole; 304, water temperature sensor; 3041, second detection probe; 305, water level sensor. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Specific embodiment 1

[0039] See also Figure 1-7 , which is the first embodiment of the utility model, provides an exhaust treatment device of a fuel cell system, including an exhaust pipe 100 , and a heat exchange component 200 is arranged at the air inlet end of the exhaust pipe 100 .

[0040] Specifically, the air outlet end of the heat exchange outer tube 201 in the heat exchange assembly 200 is fixedly connected to the air inlet end of the exhaust pipe 100, and a plurality of groups of outer fins 2011 are welded on the outer wall of the heat exchange outer tube 201 at equal intervals along the circumferential direction, and a plurality of groups of inner fins 2012 are welded on the inner wall of the heat exchange outer tube 201 at equal intervals along the circumferential direction, and the inner fins 2012 are distributed in a spiral shape.

[0041] Further, the air inlet end of the heat exchange outer tube 201 is fixedly connected with a detection shell 202, the front end surface of the detection shell 202 is fixedly connected with a temperature and humidity sensor 2021, the rear end surface of the temperature and humidity sensor 2021 is fixedly connected with a first detection probe 2022, the end of the first detection probe 2022 away from the temperature and humidity sensor 2021 passes through the front end surface of the detection shell 202 and extends to the inside of the detection shell 202, a connecting pipe 2023 passes through the outer wall of the detection shell 202 away from the heat exchange outer tube 201, and a flange 2024 is welded to the end of the connecting pipe 2023 away from the detection shell 202;

[0042] The inner center of the heat exchange outer tube 201 is fixedly connected with the inner tube 203, and both ends of the inner tube 203 are welded with first connection blocks 2031, and the ends of the first connection blocks 2031 away from the inner tube 203 are respectively welded to the inner wall of the heat exchange outer tube 201;

[0043] A driving shell 204 is fixedly connected to one side of the inner part of the heat exchange outer tube 201. A plurality of second connection blocks 2041 are welded to one end of the driving shell 204 located outside the inner tube 203 at equal intervals along the circumferential direction. One end of the second connection block 2041 away from the driving shell 204 is welded to the inner wall of the heat exchange outer tube 201. One end of the driving shell 204 extends to one side of the inner part of the inner tube 203.

[0044] A transmission rod 205 is rotatably connected to the inner center position of the driving shell 204 in the horizontal direction, and a first bevel gear and a second bevel gear 2052 are respectively sleeved on both sides of the outer wall of the transmission rod 205. A driving motor 2053 is fixedly connected to the top side of the heat exchange outer tube 201 through the motor shell 2013, and a rotating shaft 2054 is fixedly connected to the output shaft of the driving motor 2053. The end of the rotating shaft 2054 away from the driving motor 2053 passes through the heat exchange outer tube 201, the inner tube 203 and the top of the driving shell 204 in sequence and is sleeved with a first bevel gear 2051, and the first bevel gears 2051 are meshed with each other. The driving shell 204 is located on the outside of one end of the inner tube 203 and is rotatably sleeved with multiple groups of baffles 206. A mounting rod 2061 is welded to one side of the baffle 206, and the end of the mounting rod 2061 away from the baffle 206 passes through the outer wall of the driving shell 204 and is sleeved with a second bevel gear 2052, and the second bevel gears 2052 are meshed with each other.

[0045] The operation process of this embodiment is as follows: first, the connecting pipe 2023 is externally connected to the exhaust structure of the fuel cell system, so that the exhaust gas in the fuel cell system enters the detection shell 202 through the connecting pipe 2023, and the temperature and humidity of the exhaust gas are detected by the temperature and humidity sensor 2021 and the first detection probe 2022, and the dew point temperature is calculated by the central control system and compared with the ambient temperature;

[0046] When the dew point temperature is lower than the ambient temperature, the drive motor 2053 is started, and the output shaft of the drive motor 2053 drives the rotating shaft 2054 to rotate synchronously. Under the action of the mutual meshing connection between the first bevel gears 2051, the rotating shaft 2054 drives the transmission rod 205 and the second bevel gear 2052 to rotate synchronously. At the same time, under the action of the mutual meshing connection between the second bevel gears 2052, the mounting rod 2061 drives the baffle 206 to rotate, so that the baffles 206 are separated from each other. At this time, the exhaust gas in the detection shell 202 enters the exhaust pipe 100 through the heat exchange outer pipe 201 and the inner pipe 203 for direct discharge.

[0047] When the dew point temperature is higher than the ambient temperature, the driving motor 2053 drives the baffle 206 to rotate through the transmission rod 205, so that the baffle 206 closes the inner tube 203. At this time, the exhaust gas enters the exhaust pipe 100 through the gap between the heat exchange outer tube 201 and the inner tube 203, thereby increasing the contact between the exhaust gas and the inner fins 2012 and the degree of condensation. The purpose of eliminating fog is achieved by changing the calculation conditions of the dew point temperature. Specific embodiment 2

[0049] See also Figure 8-10 As shown, it is a second embodiment of the utility model, which is based on the previous embodiment, but is different from the previous embodiment in that: an exhaust assembly 300 is provided at the air outlet end of the exhaust pipe 100 .

[0050] Specifically, the water tank 301 in the discharge assembly 300 is located below the exhaust pipe 100, and a feed hopper 3011 is fixedly connected to one side of the top of the water tank 301, and the top of the feed hopper 3011 is fixedly connected to the air outlet end of the exhaust pipe 100, and a drain pipe 3013 passes through one side of the bottom of the water tank 301, and one end of the drain pipe 3013 extends to the lower part of the water tank 301, and the other end of the drain pipe 3013 is fixedly connected to a solenoid valve 3014.

[0051] Furthermore, a resistance wire 302 is fixedly connected to the lower part of the water tank 301, a battery shell 3012 is welded to the lower part of the outer wall on the other side of the water tank 301, a battery 3021 is fixedly connected to the inner part of the battery shell 3012, and both ends of the resistance wire 302 pass through the lower part of the outer wall on the other side of the water tank 301 and are electrically connected to the battery 3021;

[0052] A discharge pipe 303 is fixedly connected to the center of the water tank 301, a conical cover 3031 is fixedly connected to the top of one end of the discharge pipe 303, a plurality of third connection blocks 3032 are welded at equal intervals in the circumferential direction on the outer surface of one end of the discharge pipe 303, the third connection blocks 3032 are located above the overflow holes 3033, one end of the third connection blocks 3032 away from the discharge pipe 303 is welded to the inner wall of the conical cover 3031, a plurality of overflow holes 3033 are opened at equal intervals in the circumferential direction on the outer surface of one end of the discharge pipe 303, and the other end of the discharge pipe 303 passes through the outer wall of one side of the water tank 301 and extends to the outside of the water tank 301;

[0053] A water temperature sensor 304 and a water level sensor 305 are fixedly connected to the front end of the other side of the top of the water tank 301, and a second detection probe 3041 is fixedly connected to the bottom of the water temperature sensor 304 and the water level sensor 305. The bottom end of the second detection probe 3041 passes through the top of the water tank 301 and extends to the bottom of the interior of the water tank 301.

[0054] The rest of the structure is the same as that of the first embodiment.

[0055] The operation process of this embodiment is as follows: first, the exhaust gas in the exhaust pipe 100 enters the water tank 301 through the feed hopper 3011, and the water vapor is separated by the setting of the conical cover 3031. The separated accumulated water falls into the water tank 301 under the action of gravity, and the separated gas enters the discharge pipe 303 for discharge;

[0056] Then, the temperature of the external environment is detected by the ambient temperature detection device on the car. When the ambient temperature is higher than 5°C, the solenoid valve 3014 is activated to discharge the accumulated water in the water tank 301 directly onto the road surface.

[0057] When the ambient temperature is lower than 5°C, the power supply of the resistance wire 302 is turned on, so that the resistance wire 302 generates heat after being energized, and the accumulated water in the water tank 301 is heated by the resistance wire 302. At the same time, the water temperature and water level in the water tank 301 are detected by the water temperature sensor 304 and the water level sensor 305. When the water temperature is heated to 10°C and the water level reaches the discharge level, the solenoid valve 3014 is opened, so that the accumulated water in the water tank 301 is discharged onto the road surface;

[0058] Finally, when the driver forgets to drain the water and the water level in the water tank 301 is higher than the discharge level, the accumulated water in the water tank 301 enters the discharge pipe 303 through the overflow hole 3033, thereby automatically discharging the excess accumulated water in the water tank 301.

[0059] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. An exhaust gas treatment device for a fuel cell system, comprising an exhaust pipe (100), characterized in that: The air inlet end of the exhaust pipe (100) is provided with a heat exchange component (200), and the air outlet end of the heat exchange outer tube (201) in the heat exchange component (200) is fixedly connected to the air inlet end of the exhaust pipe (100), the air inlet end of the heat exchange outer tube (201) is fixedly connected to a detection shell (202), and the inner center position of the heat exchange outer tube (201) is fixedly connected to an inner tube (203), one side of the inner part of the heat exchange outer tube (201) is fixedly connected to a drive shell (204), and one end of the drive shell (204) extends to the inner side of the inner tube (203), the inner center position of the drive shell (204) is rotatably connected to a transmission rod (205) in a transverse direction, and the outer wall of the transmission rod (205) is respectively sleeved with a first bevel gear and a second bevel gear (2052), and the top side of the heat exchange outer tube (201) is connected to the motor shell (201) through the motor shell (201 3) a drive motor (2053) is fixedly connected, and a rotating shaft (2054) is fixedly connected to the output shaft of the drive motor (2053); an end of the rotating shaft (2054) away from the drive motor (2053) passes through the heat exchange outer tube (201), the inner tube (203) and the top of the drive shell (204) in sequence and is sleeved with a first bevel gear (2051), and the first bevel gears (2051) are meshed with each other; the drive shell (204) is located outside one end of the inner tube (203) and is rotatably sleeved with a plurality of baffles (206), and a mounting rod (2061) is welded to one side of the baffle (206); an end of the mounting rod (2061) away from the baffle (206) passes through the outer wall of the drive shell (204) and is sleeved with a second bevel gear (2052), and the second bevel gears (2052) are meshed with each other; The exhaust pipe (100) is provided with a discharge assembly (300) at the air outlet end, and the water tank (301) in the discharge assembly (300) is located below the exhaust pipe (100), a feed hopper (3011) is fixedly connected to one side of the top of the water tank (301), and the top of the feed hopper (3011) is fixedly connected to the air outlet end of the exhaust pipe (100), a resistance wire (302) is fixedly connected to the lower part of the interior of the water tank (301), and a discharge pipe (303) is fixedly connected to the center position of the interior of the water tank (301), a conical cover (3031) is fixedly connected to the top of one end of the discharge pipe (303), and a plurality of overflow holes (3033) are provided on the outer surface of one end of the discharge pipe (303) at equal intervals in the circumferential direction, and the other end of the discharge pipe (303) passes through an outer wall of one side of the water tank (301) and extends to the outside of the water tank (301).

2. The exhaust gas treatment device of a fuel cell system according to claim 1, characterized in that: A plurality of groups of outer fins (2011) are welded at equal intervals along the circumferential direction on the outer wall of the heat exchange outer tube (201), and a plurality of groups of inner fins (2012) are welded at equal intervals along the circumferential direction on the inner wall of the heat exchange outer tube (201), and the inner fins (2012) are distributed in a spiral shape.

3. The exhaust gas treatment device of a fuel cell system according to claim 1, characterized in that: A connecting pipe (2023) penetrates the outer wall of the detection shell (202) at a side away from the heat exchange outer tube (201), and a flange (2024) is welded to one end of the connecting pipe (2023) away from the detection shell (202).

4. The exhaust gas treatment device of a fuel cell system according to claim 3, characterized in that: A temperature and humidity sensor (2021) is fixedly connected to the front end surface of the detection shell (202), and a first detection probe (2022) is fixedly connected to the rear end surface of the temperature and humidity sensor (2021); an end of the first detection probe (2022) away from the temperature and humidity sensor (2021) passes through the front end surface of the detection shell (202) and extends to the interior of the detection shell (202).

5. The exhaust gas treatment device of a fuel cell system according to claim 1, characterized in that: Both ends of the inner tube (203) are welded with first connection blocks (2031), and one end of the first connection block (2031) away from the inner tube (203) is respectively welded to the inner wall of the heat exchange outer tube (201).

6. The exhaust gas treatment device of a fuel cell system according to claim 1, characterized in that: One end of the driving shell (204) located outside the inner tube (203) is welded with multiple groups of second connection blocks (2041) at equal intervals along the circumferential direction, and one end of the second connection block (2041) away from the driving shell (204) is welded to the inner wall of the heat exchange outer tube (201).

7. The exhaust gas treatment device of a fuel cell system according to claim 1, characterized in that: A battery shell (3012) is welded below the outer wall on the other side of the water tank (301), and a storage battery (3021) is fixedly connected inside the battery shell (3012), and both ends of the resistance wire (302) pass through the lower side of the outer wall on the other side of the water tank (301) and are electrically connected to the storage battery (3021).

8. The exhaust gas treatment device of a fuel cell system according to claim 7, characterized in that: A drainage pipe (3013) passes through one side of the bottom of the water tank (301), and one end of the drainage pipe (3013) extends to the lower part of the water tank (301), and the other end of the drainage pipe (3013) is fixedly connected to a solenoid valve (3014).

9. The exhaust gas treatment device of a fuel cell system according to claim 1, characterized in that: A plurality of third connection blocks (3032) are welded at equal intervals along the circumferential direction on the outer surface of one end of the discharge pipe (303), and the third connection blocks (3032) are located above the overflow hole (3033). One end of the third connection block (3032) away from the discharge pipe (303) is welded to the inner wall of the conical cover (3031).

10. The exhaust gas treatment device of a fuel cell system according to claim 1, characterized in that: A water temperature sensor (304) and a water level sensor (305) are fixedly connected to the front end of the other side of the top of the water tank (301), and a second detection probe (3041) is fixedly connected to the bottom of each of the water temperature sensor (304) and the water level sensor (305), and the bottom of the second detection probe (3041) passes through the top of the water tank (301) and extends to the lower part of the interior of the water tank (301).

Images