Cooling liquid recovery device of fuel cell

Abstract

The utility model discloses a cooling liquid recovery device of a fuel cell, which belongs to the field of new energy automobiles and comprises a recovery container, a first liquid inlet pipe arranged at the top of the recovery container and a recovery hose connected with the first liquid inlet pipe. According to the utility model, the emptying pipe is arranged at the top of the recovery container, and the second valve body and the first valve body are respectively arranged on the emptying pipe and the liquid inlet pipe at the top of the recovery container, so that the ethylene glycol cooling liquid is discharged into the recovery container in the process of discharging the ethylene glycol cooling liquid into the recovery container; the air in the recovery container can be continuously squeezed into the emptying pipe by utilizing the continuously rising liquid level in the container, so that the air in the recovery container can be discharged out of the recovery container through the emptying pipe; and when the recovery container is completely filled with the cooling liquid, the air content in the recovery container is extremely low, so that the cooling liquid, especially the ethylene glycol cooling liquid, is not easy to oxidize when being stored in the recovery container. And after the maintenance of the cooling system of the fuel cell is finished, the cooling liquid can be used for the second time, so that the waste of the cooling liquid and the use cost of the fuel cell can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of new energy vehicles, and particularly relates to a coolant recovery device for a fuel cell. Background Art

[0002] When the cooling system of a fuel cell needs to be maintained, the coolant in the cooling system needs to be drained. In order to collect the drained coolant of the cooling system, a container is usually set up to receive the coolant.

[0003] Chinese patent document with publication number CN214304030U discloses an energy-efficient radiator with recyclable coolant. The radiator includes a radiator body; an installation frame is arranged outside the radiator body, and a recovery chamber is arranged on one side of the installation frame close to the cold water pipe. The recovery chamber is connected to the cold water pipe through a recovery pipe to recover the coolant.

[0004] However, for the cooling system of a fuel cell, ethylene glycol is mostly used as the coolant. For the existing container components (such as containers, recovery chambers, etc.) for recovering coolant, a vacuum state cannot be achieved inside. After ethylene glycol enters the container components, it will be oxidized when contacting the air in the container components for a long time, resulting in an increase in ions in the ethylene glycol coolant and making it unable to be used again, causing unnecessary waste.

[0005] It can be seen that the existing technology still needs to be improved. Content of the Utility Model

[0006] In view of the above deficiencies of the existing technology, the purpose of the utility model is to provide a coolant recovery device for a fuel cell, aiming to solve the problem that the existing container components for recovering coolant are prone to oxidation of ethylene glycol coolant after being recovered because a vacuum state cannot be achieved inside.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A coolant recovery device for a fuel cell includes a recovery container, a first liquid inlet pipe arranged at the top of the recovery container, and a recovery hose connected to the first liquid inlet pipe; further includes:

[0009] A first valve body, which is arranged on the first liquid inlet pipe;

[0010] An evacuation pipe, which is arranged at the top of the recovery container and is communicated with the recovery container;

[0011] A second valve body, which is arranged on the evacuation pipe.

[0012] Furthermore, the pipe body of the evacuation pipe is transparent.

[0013] Furthermore, the coolant recovery device of the fuel cell includes a radiator frame; it also includes;

[0014] a fan assembly, which is arranged on one side of the radiator frame,

[0015] a coolant coil, which is arranged inside the radiator frame and is arranged opposite to the fan assembly,

[0016] a second liquid inlet pipe, which is connected to the liquid inlet of the coolant coil,

[0017] a first liquid outlet pipe, which is connected to the liquid outlet of the coolant coil,

[0018] a second liquid outlet pipe, which is connected to the first liquid outlet pipe,

[0019] a third valve body, which is arranged on the first liquid outlet pipe,

[0020] a fourth valve body, which is arranged on the second liquid outlet pipe;

[0021] Wherein, the second liquid inlet pipe and the first liquid outlet pipe are both connected to the cooling system of the fuel cell, and the second liquid outlet pipe is connected to a recovery hose.

[0022] Furthermore, one end of the recovery hose connected to the first liquid inlet pipe is sleeved with a connecting part; a fifth valve body is arranged on the connecting part.

[0023] Furthermore, the lower end of the first liquid inlet pipe is located above the inner bottom of the recovery container.

[0024] Furthermore, an observation window is opened on the side wall of the recovery container.

[0025] Furthermore, the recovery container includes:

[0026] a container body, which is used for storing the recovered coolant;

[0027] a container cover, which is covered on the container body, and a cylindrical insertion part is arranged at the bottom of the container cover;

[0028] a sealing ring, which is sleeved on the cylindrical insertion part.

[0029] Furthermore, the coolant recovery device of the fuel cell also includes a trolley; the trolley is used for carrying the recovery container.

[0030] Beneficial effects:

[0031] The utility model provides a coolant recovery device for a fuel cell. By arranging an exhaust pipe at the top of the recovery container, and respectively arranging a second valve body and a first valve body on the exhaust pipe and the liquid inlet pipe at the top of the recovery container, during the process of discharging ethylene glycol coolant into the recovery container, the continuously rising liquid level in the container can squeeze the air in the recovery container into the exhaust pipe, enabling the air in the recovery container to be discharged outside the recovery container through the exhaust pipe; when the recovery container is completely filled with coolant, the air content in the recovery container is extremely small. Therefore, when the coolant, especially ethylene glycol coolant, is stored in the recovery container, it is not easily oxidized. After the maintenance of the cooling system of the fuel cell is completed, the coolant can be reused, thereby reducing the waste of coolant and lowering the usage cost of the fuel cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic structural diagram of the coolant recovery device for a fuel cell.

[0033] Figure 2 is a distribution diagram of the coolant coil in the radiator frame.

[0034] Figure 3 is a schematic structural diagram of the recovery container.

[0035] Figure 4 is a schematic structural diagram of the container cover.

[0036] Figure 5 is a schematic diagram of the recovery hose.

[0037] Figure 6 is a schematic diagram of the recovery container placed on a trolley.

[0038] REFERENCE NUMERALS:

[0039] 1 - recovery container; 101 - container body; 102 - container cover; 103 - cylindrical insertion part; 104 - sealing ring;

[0040] 2 - first liquid inlet pipe; 3 - recovery hose; 4 - first valve body; 5 - exhaust pipe; 6 - second valve body; 7 - radiator frame; 8 - fan assembly; 9 - coolant coil; 10 - second liquid inlet pipe; 11 - first liquid outlet pipe; 12 - second liquid outlet pipe; 13 - third valve body; 14 - fourth valve body; 15 - connecting part; 16 - fifth valve body; 17 - observation window; 18 - trolley; 19 - lifting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] The present utility model provides a coolant recovery device for a fuel cell. To make the objectives, technical solutions and effects of the present utility model clearer and more definite, the following further describes the present utility model in detail with reference to the accompanying drawings and by way of examples. It should be understood that the specific examples described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0042] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it should not be construed as a limitation to the present utility model. In addition, "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is more than two.

[0043] Please refer to Figure 1 , the present utility model provides a coolant recovery device for a fuel cell, including a recovery container 1, a first liquid inlet pipe 2, a recovery hose 3, a first valve body 4, a drain pipe 5 and a second valve body 6.

[0044] Specifically, the first liquid inlet pipe 2 is provided at the top of the recovery container 1. When it is necessary to discharge the coolant such as ethylene glycol in the fuel cell cooling system, the ethylene glycol coolant first enters the radiator from the cooling system, and then is discharged from the radiator to the first liquid inlet pipe 2, thereby realizing the recovery of the ethylene glycol coolant. The recovery hose 3 is connected to the first liquid inlet pipe 2, and the other end thereof is connected to the coolant outlet of the radiator, so that the coolant can enter the recovery container 1 after being discharged from the radiator.

[0045] Specifically, the first valve body 4 is provided on the first liquid inlet pipe 2; the drain pipe 5 is provided at the top of the recovery container 1, and the drain pipe 5 is communicated with the recovery container 1; the second valve body 6 is provided on the drain pipe 5. Both the first valve body 4 and the second valve body 6 can be manual valve bodies. During the process of discharging the coolant into the recovery container 1, the liquid level of the coolant in the recovery container 1 continuously rises, and the air above the liquid level of the coolant is continuously squeezed into the drain pipe 5, so that the air in the recovery container 1 can be discharged to the outside of the recovery container 1 through the drain pipe 5; and when the recovery container 1 is completely filled with the coolant, the air content in the recovery container 1 is extremely small. Therefore, when the coolant, especially ethylene glycol coolant, is stored in the recovery container 1, it is not easy to oxidize. When the maintenance of the fuel cell cooling system is completed, the coolant can be reused, thereby reducing the waste of the coolant and lowering the use cost of the fuel cell.

[0046] Specifically, both the first valve body 4 and the second valve body 6 can be manual valve bodies. When the recycling container 1 is completely filled with coolant, the first valve body 4 and the second valve body 6 can be closed simultaneously to prevent external air from entering the recycling container 1, making it difficult for the coolant to oxidize.

[0047] Furthermore, the pipe body of the drain pipe 5 is transparent. When the recycling container 1 is completely filled with coolant, part of the coolant can overflow upward into the drain pipe 5. When the pipe body of the drain pipe 5 is transparent, it is convenient for the staff to know whether the recycling container 1 is completely filled with coolant.

[0048] As Figure 1 and Figure 2 shown, furthermore, the coolant recycling device of the fuel cell further includes a radiator frame 7, a fan assembly 8, a coolant coil 9, a second inlet pipe 10, a first outlet pipe 11, a second outlet pipe 12, a third valve body 13, and a fourth valve body 14.

[0049] Specifically, the radiator frame 7 is installed on the frame girder of a new energy vehicle (such as a vehicle using hydrogen energy as the new energy). The fan assembly 8 is arranged on one side of the radiator frame 7. The coolant coil 9 is arranged inside the radiator frame 7 and is disposed opposite to the fan assembly 8. During the driving of the vehicle, the wind blowing towards the fan assembly 8 will drive the multiple fans in the fan assembly 8, thereby dissipating heat from the coolant in the coolant coil 9, enabling the temperature of the coolant in the coolant coil 9 to decrease for use in the cooling system of the fuel cell.

[0050] Specifically, the second inlet pipe 10 is connected to the inlet of the coolant coil 9. The first outlet pipe 11 is connected to the outlet of the cooling coil. The second inlet pipe 10 and the first inlet pipe 2 are connected to the cooling system of the fuel cell. Under the action of the circulation pump, the coolant can be circulated between the radiator and the cooling system.

[0051] Specifically, the second outlet pipe 12 is connected to the first outlet pipe 11, and the second outlet pipe 12 is connected to the first outlet pipe 11. The third valve body 13 is arranged on the first outlet pipe 11, and the fourth valve body 14 is arranged on the second outlet pipe 12. When it is necessary to recycle the coolant in the cooling system to the recycling container 1, the third valve body 13 is closed, and the fourth valve body 14 is opened, so that the coolant in the coolant coil 9 will not be transported back to the cooling system but will be transported to the recycling container 1 via the second outlet pipe 12 and the recycling hose 3.

[0052] As Figure 5As shown, further, one end of the recovery hose 3 connected to the first liquid inlet pipe 2 is sleeved with a connecting portion 15; the connecting portion 15 can be inserted into the first liquid inlet pipe 2, and a fifth valve body 16 is provided on the connecting portion 15. When the recovery container 1 is completely filled with the coolant, the fifth valve body 16 can be closed, so that when the recovery hose 3 is pulled out from the first liquid inlet pipe 2, the coolant in the recovery hose 3 can be prevented from flowing out to the outside.

[0053] As Figure 3 shown, further, the lower end of the first liquid inlet pipe 2 is located above the inner bottom of the recovery container 1, that is, the lower end of the first liquid inlet pipe 2 can extend into the recovery container 1 and is close to the bottom of the recovery container 1, so that when it is necessary to reuse the coolant in the recovery container 1, the coolant in the recovery container 1 can be conveniently pumped into the cooling system of the fuel cell.

[0054] As Figure 3 shown, further, an observation window 17 is provided on the side wall of the recovery container 1, and through the observation window 17, the recovery and extraction conditions of the coolant in the recovery container 1 can be observed.

[0055] As Figure 3 and Figure 4 shown, further, the recovery container 1 includes a container body 101 and a container cover 102.

[0056] Among them, the container body 101 is used to store the recovered coolant. The container cover 102 is covered on the container body 101, and a cylindrical insertion portion 103 is provided at the bottom of the container cover 102. By providing a detachable container cover 102, it is convenient to clean the inside of the recovery container 1 to clean out the impurities precipitated in the recovery container 1.

[0057] Among them, the sealing ring 104 is sleeved on the cylindrical insertion portion 103. When the container cover 102 is covered on the container body 101, the sealing ring 104 is simultaneously squeezed by the inner wall of the container body 101 and the cylindrical insertion portion 103. Therefore, the setting of the sealing ring 104 can improve the sealing performance of the recovery container 1, making it difficult for external air to enter the recovery container 1.

[0058] As Figure 6 shown, further, the coolant recovery device of the fuel cell further includes a trolley 18; the trolley 18 is used to carry the recovery container 1, facilitating the staff to transfer the recovery container 1 from under the radiator, which is convenient for the subsequent staff to maintain the vehicle equipment.

[0059] As Figure 3 shown, further, a lifting rod 19 is provided at the top of the container cover 102, which is convenient for the staff to pull out the container cover 102 from the container body 101.

[0060] In summary, in the present utility model, an emptying pipe is provided at the top of the recovery container, and a second valve body and a first valve body are respectively provided on the emptying pipe and the liquid inlet pipe at the top of the recovery container. Thus, during the process of discharging the ethylene glycol coolant into the recovery container, the continuously rising liquid level in the container can be utilized to continuously squeeze the air in the recovery container into the emptying pipe, so that the air in the recovery container can be discharged outside the recovery container through the emptying pipe; and when the recovery container is completely filled with the coolant, the air content in the recovery container is extremely small. Therefore, when the coolant, especially the ethylene glycol coolant, is stored in the recovery container, it is not easily oxidized. After the maintenance of the cooling system of the fuel cell is completed, the coolant can be reused, thereby reducing the waste of the coolant and lowering the use cost of the fuel cell.

[0061] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solution and the inventive concept of the present utility model, and all such changes or substitutions should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A coolant recovery device for a fuel cell, comprising a recovery container, a first liquid inlet pipe arranged on the top of the recovery container, and a recovery hose connected to the first liquid inlet pipe; characterized in that: Also includes: A first valve body, wherein the first valve body is arranged on the first liquid inlet pipe; An emptying pipe, which is disposed on the top of the recovery container and is in communication with the recovery container; A second valve body is arranged on the exhaust pipe.

2. The coolant recovery device for a fuel cell according to claim 1, characterized in that: The tube body of the emptying tube is transparent.

3. The coolant recovery device for a fuel cell according to claim 1, characterized in that: Includes radiator rack; Also includes; A fan assembly, wherein the fan assembly is arranged on one side of the radiator frame, a cooling liquid coil, the cooling liquid coil being arranged in the radiator frame and being arranged opposite to the fan assembly, a second liquid inlet pipe, the second liquid inlet pipe being connected to the liquid inlet of the cooling liquid coil, a first liquid outlet pipe, the first liquid outlet pipe being connected to the liquid outlet of the cooling liquid coil, a second liquid outlet pipe, the second liquid outlet pipe is connected to the first liquid outlet pipe, A third valve body, the third valve body is arranged on the first liquid outlet pipe, a fourth valve body, the fourth valve body being arranged on the second liquid outlet pipe; Wherein, the second liquid inlet pipe and the first liquid outlet pipe are both connected to the cooling system of the fuel cell, and the second liquid outlet pipe is connected to the recovery hose.

4. The coolant recovery device for a fuel cell according to claim 3, characterized in that: One end of the recovery hose connected to the first liquid inlet pipe is sleeved with a connecting portion; a fifth valve body is provided on the connecting portion.

5. The coolant recovery device for a fuel cell according to claim 1, characterized in that: The lower end of the first liquid inlet pipe is located above the inner bottom of the recovery container.

6. The coolant recovery device for a fuel cell according to claim 5, characterized in that: An observation window is provided on the side wall of the recovery container.

7. The coolant recovery device for a fuel cell according to claim 1, characterized in that: The recycling container comprises: A container body, wherein the container body is used to store the recovered coolant; A container cover, wherein the container cover is disposed on the container body, and a columnar plug-in portion is disposed at the bottom of the container cover; A sealing ring is sleeved on the cylindrical plug-in portion.

8. The coolant recovery device for a fuel cell according to claim 1, characterized in that: Also included is a cart; the cart is used to carry the recycling container.

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