CN220474667U - Split-type arranged fuel cell cooling system - Google Patents

Abstract

The utility model relates to the technical field of fuel cell cooling, and discloses a split-type fuel cell cooling system which comprises a fuel cell, a radiator and an expansion water tank which are connected with each other; the radiator comprises a front radiator and a rear radiator which are arranged front and back, the front radiator is located below the cab, the rear radiator is located behind the cab, and the expansion water tank is located between the front radiator and the rear radiator. Through setting up preceding radiator in the space of driver's cabin below, set up the back radiator in the outside of driver's cabin, adopt split type structure with preceding radiator and back radiator, but make full use of preceding radiator front windward radiating efficiency's characteristics to and change the volume of back radiator and accelerate the radiating rate to fuel cell.

Description

Split-type arranged fuel cell cooling system

Technical Field

The utility model relates to the technical field of fuel cell cooling, in particular to a split-type fuel cell cooling system.

Background

The existing cooling system for the fuel cell generally comprises a galvanic pile, a radiator, a water pump and an expansion water tank, wherein the water pump conveys cooling liquid in the expansion water tank to the radiator and electrically pushes the radiator, and water vapor generated when the galvanic pile is cooled flows back into the expansion water tank through a pipeline. In order to meet the heat dissipation requirement, the existing heat dissipaters are generally arranged in two, the two heat dissipaters are respectively stacked up and down and are arranged below the cab, the volume requirement of the heat dissipaters is large, and the arrangement space below the cab of the trailer is limited, so that the heat dissipation speed of the electric pile is increased by increasing the volume of the heat dissipaters in the existing structure.

It can be seen that there is a need for improvements and improvements in the art.

Disclosure of Invention

In view of the above-described drawbacks of the related art, an object of the present utility model is to provide a fuel cell cooling system of split arrangement, which aims to provide a radiator split in two front and rear so that the volume of the radiator located at the rear can be increased.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a split-type arranged fuel cell cooling system, comprising a fuel cell, a radiator and an expansion water tank which are connected with each other; the radiator comprises a front radiator and a rear radiator which are arranged front and back, the front radiator is located below the cab, the rear radiator is located behind the cab, and the expansion water tank is located between the front radiator and the rear radiator.

The split-type arranged fuel cell cooling system is characterized in that the setting height of the front radiator is lower than that of the rear radiator, and the setting height of the rear radiator is lower than that of the expansion water tank.

The split type arranged fuel cell cooling system is characterized in that a second cooling liquid inlet and a second cooling liquid outlet are formed in the fuel cell, a third cooling liquid inlet and a third cooling liquid outlet are formed in the front radiator, and a fourth cooling liquid inlet and a fourth cooling liquid outlet are formed in the rear radiator; a three-way pipe is arranged on the second cooling liquid outlet, one end of the three-way pipe is connected with the third cooling liquid inlet through a second cooling liquid pipe, and the third cooling liquid outlet is connected with a sixth cooling liquid pipe; the other end of the three-way pipe is connected with the fourth cooling liquid inlet through a third cooling liquid pipeline, the fourth cooling liquid outlet is connected with a fourth cooling liquid pipeline, a fifth cooling liquid pipeline is connected to the junction of the fourth cooling liquid pipeline and the sixth cooling liquid pipeline, and the tail end of the fifth cooling liquid pipeline is connected with the second cooling liquid inlet.

The split type arranged fuel cell cooling system is characterized in that a first cooling liquid outlet and a first gas-liquid inlet are formed in the expansion water tank, a first second cooling liquid inlet and a second gas-liquid outlet are also formed in the fuel cell, a third gas-liquid outlet is also formed in the front radiator, and a fourth gas-liquid outlet is also formed in the rear radiator; the first cooling liquid outlet and the first second cooling liquid inlet are connected through a first cooling liquid pipeline, and the second gas-liquid outlet, the third gas-liquid outlet and the fourth gas-liquid outlet are all connected with the first gas-liquid inlet through a first gas-liquid backflow pipeline.

And a second gas-liquid backflow pipeline is further arranged between the fourth cooling liquid pipeline, the sixth cooling liquid pipeline and the first gas-liquid inlet.

The split type arranged fuel cell cooling system is characterized in that the setting height of the first gas liquid inlet is larger than that of the first cooling liquid outlet, the setting height of the third cooling liquid inlet is larger than that of the third cooling liquid outlet, and the setting height of the fourth cooling liquid inlet is larger than that of the fourth cooling liquid outlet.

The split-type fuel cell cooling system is characterized in that an ion filter is arranged on a first gas-liquid backflow pipeline between the second gas-liquid outlet and the first gas-liquid inlet.

The fuel cell cooling system is characterized in that a split type arranged fuel cell cooling system is characterized in that a split pipeline is further arranged on the fifth cooling liquid pipeline, and the tail end of the split pipeline is connected with a water drain valve through a throat hoop.

The split type arranged fuel cell cooling system comprises an upper pipeline, a valve body, a lower pipeline and a valve, wherein the upper pipeline is inserted into the tail end of the split pipeline, the upper part of the valve body is connected with the upper pipeline, the lower part of the valve body is connected with the lower pipeline, a cavity is formed in the valve body, the valve is arranged on the outer wall of the valve body, and the valve is inserted into the cavity of the valve body and used for driving a valve core positioned in the cavity to be closed or opened.

The split-type fuel cell cooling system is characterized in that a drain pipe is further arranged on the expansion water tank.

The beneficial effects are that:

the utility model provides a split-type arranged fuel cell cooling system, which is characterized in that a front radiator is arranged in a space below a cab, a rear radiator is arranged outside the cab, the front radiator and the rear radiator are of split-type structures, the characteristic of high front windward heat dissipation efficiency of the front radiator can be fully utilized, and the heat dissipation speed of a fuel cell is accelerated by changing the volume of the rear radiator.

Drawings

Fig. 1 is a schematic structural diagram of a split-type fuel cell cooling system according to the present utility model.

Fig. 2 is a schematic diagram of a split-type fuel cell cooling system.

Fig. 3 is a schematic diagram of a split-type fuel cell cooling system of fig. 1 with the fuel cells removed.

Fig. 4 is a schematic diagram of the split-type fuel cell cooling system of fig. 2 with the fuel cells removed.

Description of main reference numerals: 1-expansion tank, 11-first coolant outlet, 12-first gas-liquid inlet, 13-drain, 2-fuel cell, 21-second coolant inlet first, 22-second coolant inlet second, 23-second coolant outlet, 24-second gas-liquid outlet, 3-front radiator, 31-third coolant inlet, 32-third coolant outlet, 33-third gas-liquid outlet, 4-rear radiator, 41-fourth coolant inlet, 42-fourth coolant outlet, 43-fourth gas-liquid outlet, 51-first coolant line, 52-second coolant line, 53-third coolant line, 54-fourth coolant line, 55-fifth coolant line, 56-split line, 57-throat hoop, 58-sixth coolant line, 61-first gas-liquid return line, 62-second gas-liquid return line, 7-ion filter, 8-drain valve, 81-upper line, 82-lower line, 83-lower line, valve body.

Detailed Description

The utility model provides a split-type fuel cell cooling system, which is used for making the purposes, technical schemes and effects of the utility model clearer and more definite, and is further described in detail below by referring to the attached drawings and examples. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 4, the present utility model provides a split-type fuel cell cooling system, which comprises a fuel cell 2, a radiator and an expansion tank 1 which are connected with each other; the radiator comprises a front radiator 3 and a rear radiator 4 which are arranged front and back, the front radiator 3 is positioned below the cab, the rear radiator 4 is positioned behind the cab, and the expansion water tank 1 is positioned between the front radiator 3 and the rear radiator 4.

The cooling liquid (water is adopted in the embodiment) is uniformly led in the pipeline between the fuel cell 2 and the radiator, the water flows into the fuel cell 2 through the pipeline, after the water and the fuel cell 2 exchange heat, the heated water flows into the two pipelines of the front radiator 3 and the rear radiator 4 respectively through the three-way pipeline for cooling respectively, and the water cooled by the front radiator 3 and the rear radiator 4 is converged together through the pipeline and enters the fuel cell 2 again for circulation. The expansion tank 1 is used for supplementing water for the heat exchange pipeline.

In this embodiment, the volume of the front radiator 3 is designed according to the space below the cab/vehicle head, and the rear radiator 4 is arranged outside the cab, so that there is no space limitation, and the volume of the front radiator 4 can be designed according to the heat dissipation requirement of the fuel cell 2, so that on the basis of the existing radiator volume, the characteristic of high front windward heat dissipation efficiency of the front radiator 3 can be fully utilized by arranging the split front radiator 3 and the rear radiator 4, and the heat dissipation speed of the fuel cell 2 can be increased by changing the volume of the rear radiator 4.

Referring to fig. 1-4, in some embodiments, the front radiator 3 is disposed at a height lower than the rear radiator 4, and the rear radiator 4 is disposed at a height lower than the expansion tank 1. The setting position and the height of the front radiator 3 and the rear radiator 4 are designed according to the space below the cab and the position behind the cab, and compared with the traditional upper and lower overlapped radiator structure, the split front radiator 3 and the rear radiator 4 are high enough for the height difference of cooling liquid, the expansion water tank 1 after the traditional radiator arrangement is high enough, the operation is inconvenient when overhauling or filling, the safe operation can be realized only by using tools (such as ladders) on the ground, and the setting height of the expansion water tank 1 is greatly reduced after the front radiator 3 and the rear radiator 4 are arranged in a front-rear split mode, and the setting height is within two meters from the ground, so the operation is more convenient when overhauling or filling.

Referring to fig. 1-4, in some embodiments, the fuel cell 2 is provided with a second cooling fluid inlet 22 and a second cooling fluid outlet 23, the front radiator 3 is provided with a third cooling fluid inlet 31 and a third cooling fluid outlet 32, and the rear radiator 4 is provided with a fourth cooling fluid inlet 41 and a fourth cooling fluid outlet 42; a three-way pipe is arranged on the second cooling liquid outlet 23, one end of the three-way pipe is connected with the third cooling liquid inlet 31 through a second cooling liquid pipe 52, and the third cooling liquid outlet 32 is connected with a sixth cooling liquid pipe 58; the other end of the three-way pipe is connected with the fourth cooling liquid inlet 41 through a third cooling liquid pipeline 53, the fourth cooling liquid outlet 42 is connected with a fourth cooling liquid pipeline 54, a fifth cooling liquid pipeline 55 is connected at the junction of the fourth cooling liquid pipeline 54 and the sixth cooling liquid pipeline 58, and the tail end of the fifth cooling liquid pipeline 55 is connected with the second cooling liquid inlet 22. By arranging a cooling liquid inlet and a cooling liquid outlet on the fuel cell 2, the front radiator 3 and the rear radiator 4 respectively and arranging a plurality of cooling liquid pipelines, the flow direction of cooling liquid is described as follows: hot water flows out of the second cooling liquid outlet 23 of the fuel cell 2 and then enters the three-way pipe, the hot water is divided into two pipelines, one pipeline flows to the third cooling liquid inlet 31 through the second cooling liquid pipeline 52 and enters the front radiator 3, the front radiator 3 is cooled, and the water after heat exchange enters the sixth cooling liquid pipeline 58 from the third cooling liquid outlet 32; the other pipeline flows to the fourth cooling liquid inlet 41 through the third cooling liquid pipeline 53 and enters the rear radiator 4, the water after heat exchange enters the fourth cooling liquid pipeline 54 from the fourth cooling liquid outlet 42 after cooling by the rear radiator 4, the tail end of the fourth cooling liquid pipeline 54 is intersected with the tail end of the sixth cooling liquid pipeline 58, and the cooling water of the two radiators enters the fuel cell 2 again through the fifth cooling liquid pipeline 55 after being intersected for heat exchange, so that the circulation is realized.

Referring to fig. 1-4, in some embodiments, the expansion tank 1 is provided with a first cooling liquid outlet 11 and a first gas liquid inlet 12, the fuel cell 2 is further provided with a second gas liquid outlet 24, the front radiator 3 is further provided with a second cooling liquid inlet 21 and a third gas liquid outlet 33, and the rear radiator 4 is further provided with a fourth gas liquid outlet 43; the first cooling liquid outlet 11 and the second cooling liquid inlet 21 are connected by a first cooling liquid pipe 51, and the second gas-liquid outlet 24, the third gas-liquid outlet 33 and the fourth gas-liquid outlet 43 are all connected with the first gas-liquid inlet 12 by a first gas-liquid return pipe 61. Since water vapor is generated in the heat exchange process, water and gas are mixed and then flow back to the expansion tank 1 through the first gas-liquid return pipe 61 to be condensed into liquid, and when the volume of water in the heat exchange pipe is reduced due to the travel water vapor, water supplementing of the heat exchange pipe is realized through the first cooling liquid outlet 11, the first cooling liquid pipe 51 and the first second cooling liquid inlet 21, so that circulation is realized.

Referring to fig. 1-4, in some embodiments, a second gas-liquid return line 62 is also provided between the fourth coolant line 54, the sixth coolant line 58, and the first gas-liquid inlet 12. Likewise, the water vapor mixed with the water vapor in the fourth coolant pipe 54 and the sixth coolant pipe 58 is returned to the expansion tank 1.

Referring to fig. 1-4, in some embodiments, the first gas inlet 12 is disposed at a height greater than the first cooling liquid outlet 11. The first cooling liquid outlet 11 is arranged at a low position, so that cooling water can flow into the quick first cooling liquid pipeline 51 for supplementing water under the action of gravity. The third coolant inlet 31 is disposed at a height greater than the third coolant outlet 32. The third coolant outlet 32 and the third coolant inlet 31 are located at a low level and a high level of the front radiator 3, respectively, which is advantageous for increasing the contact time of the cooling water with the heat exchange of the front radiator 3. The fourth cooling liquid inlet 41 is disposed at a height greater than the fourth cooling liquid outlet 42. The fourth coolant inlet 41 and the fourth coolant outlet 4 are located at the upper and lower positions of the rear radiator 4, respectively, and also serve to increase the contact time of the cooling water with the rear radiator 4.

Referring to fig. 1-4, in some embodiments, an ion filter 7 is disposed on the first gas-liquid return line 61 between the second gas-liquid outlet 24 and the first gas-liquid inlet 12. An ion filter 7 is provided for filtering the recirculated cooling water to prevent the impurity from being circulated in the cooling system to cause an influence.

Referring to fig. 1-4, in some embodiments, a branch pipe 56 is further disposed on the fifth coolant pipe 55, and a drain valve 8 is connected to an end of the branch pipe 56 through a hose 57. The drain valve 8 is opened for maintenance and discharges the cooling water in the cooling system to observe the state of the cooling water.

Referring to fig. 1, in some embodiments, the water drain valve 8 includes an upper pipe 81, a valve body 82, a lower pipe 83, and a valve 84, wherein the upper pipe 81 is inserted into an end of the branch pipe 56, an upper portion of the valve body 82 is connected to the upper pipe 81, a lower portion of the valve body 82 is connected to the lower pipe 83, a cavity is provided in the valve body 82, the valve 84 is disposed on an outer wall of the valve body 82, and the valve 84 is inserted into the cavity of the valve body 82 and is used for driving a valve element located in the cavity to be closed or opened. The cooling water enters the upper pipeline 81, the cavity of the valve 84 and the lower pipeline 83 from the tail end of the branch pipeline 56 and flows out, and when in use, the valve 84 can be rotated to control the valve core connected with the valve to be closed or opened so as to enable the water drain valve 8 to be closed or opened, so that the use is convenient.

Referring to fig. 1-4, in some embodiments, a drain pipe 13 is further disposed on the expansion tank 1. In this embodiment, the orifice of the drain pipe 13 is located at the top of the expansion tank 1, and the drain pipe 13 can be used to drain the cooling water above the water level of the expansion tank 1.

In summary, according to the present utility model, the front radiator 3 is disposed in the space below the cab, the rear radiator 4 is disposed outside the cab, and the front radiator 3 and the rear radiator 4 are in split-type structures, so that the characteristics of high front-to-wind heat dissipation efficiency of the front radiator 3 can be fully utilized, and the heat dissipation speed of the fuel cell 2 can be increased by changing the volume of the rear radiator 4. By limiting the setting height of the expansion tank 1 and adopting the split design of the front radiator 3 and the rear radiator 4, the setting height of the expansion tank 1 is reduced, and the maintenance or the filling of cooling water is facilitated. The flow direction of the cooling liquid is described by providing a cooling liquid inlet, a cooling liquid outlet, and a plurality of cooling liquid pipes on the expansion tank 1, the fuel cell 2, the front radiator 3, and the rear radiator 4, respectively. A first gas-liquid return pipe 61 and a second gas-liquid return pipe 62 are provided for returning the water-gas mixture to the expansion tank 1. An ion filter 7 is provided for filtering the returned cooling water. A water drain valve 8 is provided for service. A drain pipe 13 is provided for draining the cooling water above the water level of the expansion tank 1.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", or a third "may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "plurality" is two or more unless specifically defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It will be understood that equivalents and modifications will occur to those skilled in the art based on the present utility model and its spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model.

Claims (10)

1. A split-type arranged fuel cell cooling system, comprising a fuel cell, a radiator and an expansion water tank which are connected with each other; the radiator is characterized by comprising a front radiator and a rear radiator which are arranged front and back, wherein the front radiator is positioned below the cab, the rear radiator is positioned behind the cab, and the expansion water tank is positioned between the front radiator and the rear radiator.

2. The split arrangement fuel cell cooling system of claim 1, wherein the front radiator is disposed at a height that is lower than a height of the rear radiator that is lower than a height of the expansion tank.

3. The split-type arranged fuel cell cooling system according to claim 1, wherein a second cooling liquid inlet and a second cooling liquid outlet are formed in the fuel cell, a third cooling liquid inlet and a third cooling liquid outlet are formed in the front radiator, and a fourth cooling liquid inlet and a fourth cooling liquid outlet are formed in the rear radiator; a three-way pipe is arranged on the second cooling liquid outlet, one end of the three-way pipe is connected with the third cooling liquid inlet through a second cooling liquid pipe, and the third cooling liquid outlet is connected with a sixth cooling liquid pipe; the other end of the three-way pipe is connected with the fourth cooling liquid inlet through a third cooling liquid pipeline, the fourth cooling liquid outlet is connected with a fourth cooling liquid pipeline, a fifth cooling liquid pipeline is connected to the junction of the fourth cooling liquid pipeline and the sixth cooling liquid pipeline, and the tail end of the fifth cooling liquid pipeline is connected with the second cooling liquid inlet.

4. The split-type arranged fuel cell cooling system according to claim 3, wherein a first cooling liquid outlet and a first gas-liquid inlet are arranged on the expansion water tank, a second cooling liquid inlet I and a second gas-liquid outlet are also arranged on the fuel cell, a third gas-liquid outlet is also arranged on the front radiator, and a fourth gas-liquid outlet is also arranged on the rear radiator; the first cooling liquid outlet and the first second cooling liquid inlet are connected through a first cooling liquid pipeline, and the second gas-liquid outlet, the third gas-liquid outlet and the fourth gas-liquid outlet are all connected with the first gas-liquid inlet through a first gas-liquid backflow pipeline.

5. The split arrangement fuel cell cooling system of claim 4, wherein a second gas-liquid return conduit is further provided between the fourth coolant conduit, the sixth coolant conduit, and the first gas-liquid inlet.

6. The split arrangement fuel cell cooling system of claim 4, wherein the first gas-liquid inlet is disposed at a height greater than the first coolant outlet, the third coolant inlet is disposed at a height greater than the third coolant outlet, and the fourth coolant inlet is disposed at a height greater than the fourth coolant outlet.

7. The split arrangement fuel cell cooling system of claim 4, wherein an ion filter is provided on the first gas-liquid return conduit between the second gas-liquid outlet and the first gas-liquid inlet.

8. The split arrangement fuel cell cooling system of claim 4, wherein the fifth coolant line is further provided with a split line having a drain valve connected to an end thereof by a hose.

9. The split arrangement fuel cell cooling system according to claim 8, wherein the water drain valve includes an upper pipe, a valve body, a lower pipe, and a valve, the upper pipe is inserted into an end of the split pipe, an upper portion of the valve body is connected with the upper pipe, a lower portion of the valve body is connected with the lower pipe, a cavity is provided in the valve body, the valve is provided to an outer wall of the valve body, and the valve is inserted into the cavity of the valve body and is used to drive a valve element located in the cavity to be closed or opened.

10. The split arrangement fuel cell cooling system of claim 1 wherein a drain is also provided on the expansion tank.