External cooling device for water-cooled generator set

Abstract

The utility model relates to the field of external cooling devices, and in particular to an external cooling device for a water-cooled generator set, including an engine and a water pipe, the water pipe including a first water inlet and a first water outlet, the first water inlet connected to one end of the engine, the first water outlet connected to the other end of the engine, the hot air in the engine returns to the inside of the engine after cooling through the water pipe, the water pipe is coated with a cooling device, a heat conductive paste is provided between the cooling device and the water pipe, the heat conductive paste is an organic resin, a coolant is passed through the cooling device, when the water-cooled generator needs to be cooled quickly, the coolant flows quickly to cool the water in the water pipe through heat conduction, the cooling device is a pipe-type heat exchanger, the pipe-type heat exchanger is a semicircular pipe, the two ends of the pipe-type heat exchanger are closed, and the two ends are provided with a second water inlet and a second water outlet. The utility model has the advantage of efficiently reducing the coolant temperature in the water-cooled generator and improving the overall heat dissipation capacity of the water-cooled generator set in a high temperature environment.

Description

[Technical field]

[0001] The utility model relates to the field of external cooling devices, in particular to an external cooling device for a water-cooled generator set. [Background technology]

[0002] To ensure the reliability of power supply, mobile power supply vehicles began to use water-cooled generator sets in large quantities due to their high cooling efficiency. In the summer, the high temperature, coupled with the relatively closed cabin environment of the vehicle, the poor heat dissipation of the generator set body caused the cabin temperature to rise. The water in the heat dissipation tank caused its own temperature to rise due to long-term heat dissipation work, and the cooling efficiency decreased, resulting in increased power loss of the generator set. Even in extremely high temperature environments and high loads, the generator set will overheat and shut down, eventually causing production damage.

[0003] However, traditional water-cooled generator sets usually cool the radiator tank only by using fans, which has poor cooling effect and cannot ensure that the system always operates at the optimal operating temperature, resulting in the above-mentioned power loss or high-temperature shutdown, thereby shortening the life of the system or components, increasing energy consumption, and reducing work efficiency.

[0004] Therefore, we provide an external cooling device for a water-cooled generator set to solve the above problems, effectively reduce the system coolant temperature, and improve the overall heat dissipation capacity of the water-cooled generator set in a high temperature environment. [Contents of the utility model]

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an external cooling device for a water-cooled generator set, which can effectively reduce the temperature of the coolant in the water-cooled generator and improve the overall heat dissipation capacity of the water-cooled generator set in a high temperature environment.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An external cooling device for a water-cooled generator set comprises an engine and a water pipe, wherein the water pipe comprises a first water inlet and a first water outlet, wherein the first water inlet is connected to one end of the engine, and the first water outlet is connected to the other end of the engine, and hot air in the engine is cooled by the water pipe and returns to the inside of the engine, and the water pipe is coated with a cooling device, and a heat conductive paste is provided between the cooling device and the water pipe, wherein the heat conductive paste is an organic resin, and coolant flows inside the cooling device, and when the water-cooled generator needs to be cooled quickly, the coolant flows quickly to cool the water in the water pipe through heat conduction, and the cooling device is a pipe-type heat exchanger, and the pipe-type heat exchanger is a semicircular pipe, and both ends of the pipe-type heat exchanger are closed, and a second water inlet and a second water outlet are provided at both ends.

[0008] Preferably, at least one rib is provided inside the pipe-type heat exchanger, and the rib matches the pipe-type heat exchanger.

[0009] Preferably, springs are provided between the ribs.

[0010] Preferably, there are two pipe-type heat exchangers, and a snap-fit ​​structure is provided at the fastening point of the pipe-type heat exchangers.

[0011] Preferably, a recessed hole channel is provided at one end of the buckle structure, and a protrusion matching the recessed hole channel is provided at the other end.

[0012] Preferably, the protrusion is a column with inclined side walls, an elastic sphere is provided at the top of the column, and a circular groove matching the elastic sphere is provided at the bottom of the concave hole channel.

[0013] Preferably, the flow direction of the coolant inside the pipe heat exchanger is opposite to the flow direction of the water flow inside the water pipe.

[0014] Preferably, it also includes a circulation pump and a fan, which are arranged on one side of the cooling device, and provide power for the coolant inside the cooling device to flow in one direction.

[0015] The beneficial effects of adopting the utility model are:

[0016] 1. There is coolant inside the cooling device. When the water-cooled generator needs to be cooled down quickly, the coolant flows quickly to quickly cool down the water in the water pipe through heat conduction. The cooling speed is fast and the efficiency is high.

[0017] The cooling device is a pipe-type heat exchanger, which is a semicircular pipe. The semicircular pipe can fully match the shape of the water pipe, realize close contact heat conduction, accelerate heat dissipation and realize high-speed cooling.

[0018] 2. At least one rib is provided inside the pipeline heat exchanger. The rib matches the inside of the pipeline heat exchanger. The rib is tangent to the pipeline heat exchanger and is arranged in a uniformly distributed manner. The rib not only strengthens the structural strength and vertically supports the pipeline heat exchanger, but also increases the heat dissipation area. Solids conduct heat faster than liquids. The ribs absorb heat from the water pipes faster than the coolant. The coolant flows between the ribs, which can drive the heat on the ribs to transfer, thereby reducing the temperature of the ribs.

[0019] There are springs between the ribs. On the one hand, the springs control the movement of the ribs. The ribs are extended and retracted by the springs to control the distance between the ribs. The closer the distance between the ribs, the smaller the separation area and the faster the coolant flow rate; the farther the separation distance, the slower the coolant flow rate. The faster the flow rate, the faster the heat dissipation. The different heat dissipation ratios required by the production tasks are adjusted in real time to meet different production heat dissipation requirements. The springs will bring certain obstacles to the flow of the coolant. When the coolant is blocked from flowing through the springs, an appropriate counterflow will be formed at the springs, which will fully contact the heat source, killing two birds with one stone.

[0020] 3. A concave hole groove is provided at one end of the buckle structure, and a protrusion matching the concave hole groove is provided at the other end. The concave hole groove and the protrusion are plugged and matched with each other to keep the relative structure sealed at this place, thereby ensuring that the pipeline heat exchanger can block as much heat as possible from the heat transfer paste, thereby improving the overall heat exchange efficiency. At the same time, a plug-in tight connection can also be achieved.

[0021] The protrusion is a column with inclined side walls, and the inclination of the side walls provides directional guidance for the insertion of the recessed hole groove and the protrusion. An elastic sphere is provided at the top of the column, and a circular groove matching the elastic sphere is provided at the bottom of the recessed hole groove. The elastic sphere is pressed into the circular groove, and after expansion, the diameter of the elastic sphere becomes larger and engages with the recessed hole groove.

[0022] 4. The flow direction of the coolant inside the pipe heat exchanger is opposite to the flow direction of the water inside the water pipe. Through the principle of convection heat transfer, for example, the hotter water flows from the left side, and the temperature on the left side of the pipe heat exchanger is relatively hotter. The coolant with lower temperature flows from the right side, and the temperature on the left side of the pipe heat exchanger is relatively lower. The temperature difference at both ends of the pipe heat exchanger is quickly neutralized, further improving the heat dissipation and cooling effect at this location.

[0023] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings.

Brief Description of the Drawings

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] Figure 1 This is an overall schematic diagram of an external cooling device for a water-cooled generator set according to Embodiment 1 of the present utility model;

[0026] Figure 2 for Figure 1 Schematic diagram of cooling device and water pipe in FIG.

[0027] Figure 3 is a schematic diagram of a cooling device;

[0028] Figure 4 Schematic diagram of the internal structure of the cooling device. [Specific implementation method]

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Embodiment 1:

[0031] In this embodiment, a water-cooled generator set external cooling device 5, such as Figure 1 As shown, it includes an engine 1 and a water pipe 2, and the water pipe 2 includes a first water inlet 3 and a first water outlet 4. It is worth mentioning that the water pipe 2 can flow through flowing water, and the first water inlet 3 and the first water outlet 4 can be connected, that is, the water pipe 2 is a water tank, and the water does not flow but is only stored in the water tank. In this embodiment, the water in the water pipe 2 is flowing.

[0032] The first water inlet 3 is connected to one end of the engine 1, and the first water outlet 4 is connected to the other end of the engine 1. The hot air in the engine 1 is cooled by the water pipe 2 and then returns to the inside of the engine 1, and circulates in sequence to cool the engine 1. The water in the water pipe 2 absorbs the heat in the hot air, causing its own water temperature to rise. It is worth mentioning that the water pipe 2 can also be other coolants, not necessarily just water. Therefore, the water pipe 2 is coated with a cooling device 5, and a thermal conductive paste 6 is provided between the cooling device 5 and the water pipe 2. The thermal conductive paste 6 can achieve sufficient heat conduction between the water temperature in the water pipe 2 and the coolant in the cooling device 5 through the water pipe 2, the thermal conductive paste 6, and the cooling device 5. The heat is quickly transferred to accelerate the cooling efficiency. Of course, it should be noted that the thermal conductive paste 6 is an organic resin. The organic resin has a high thermal conductivity and high resilience, is resistant to stretching and bending, and can maintain initial thermal properties under continuous high temperature and high and low temperature impacts.

[0033] There is coolant flowing through the cooling device 5. When the water-cooled generator needs to be cooled down quickly, the coolant flows quickly to cool down the water in the water pipe 2 through heat conduction. The cooling speed is fast and the efficiency is high.

[0034] like Figures 2 to 4 As shown, the cooling device 5 is a pipe-type heat exchanger 7, and the pipe-type heat exchanger 7 is a semicircular pipe. The semicircular pipe can fully match the shape of the water pipe 2, realize close contact heat conduction, accelerate heat dissipation, and realize high-speed cooling.

[0035] The two ends of the pipe heat exchanger 7 are closed, which can effectively prevent the leakage of the coolant and improve the sealing performance. The two ends are provided with a second water inlet 8 and a second water outlet 9. The coolant can be quickly replenished through the second water inlet 8 and replaced through the second water outlet 9. The second water inlet 8 and the second water outlet 9 are arranged at the upper end of the pipe heat exchanger 7 and are in the shape of a hollow pipe inside, which effectively prevents the leakage of the coolant and can realize the efficient introduction of the coolant.

[0036] like Figure 4As shown, at least one rib 10 is provided inside the pipe heat exchanger 7, the rib 10 matches the inside of the pipe heat exchanger 7, the rib 10 is tangent and perpendicular to the pipe heat exchanger 7, and the ribs 10 are arranged in a uniformly distributed manner. The ribs 10 not only play a role in strengthening the structural strength and vertically supporting the pipe heat exchanger 7, but also play a role in increasing the heat dissipation area. Solids conduct heat faster than liquids. The ribs 10 absorb the heat of the water pipe 2 faster than the coolant. The coolant flows between the ribs 10, which can drive the heat on the ribs 10 to be transferred, thereby reducing the temperature of the ribs 10.

[0037] Springs 11 are arranged between the ribs 10. On the one hand, the springs 11 control the movement of the ribs 10. The ribs 10 are extended and retracted by the springs 11 to control the distance between the ribs 10. The closer the distance between the ribs 10, the smaller the separation area, and the faster the coolant flow rate; the farther the separation distance, the slower the coolant flow rate, and the faster the flow rate, the faster the heat dissipation. The different heat dissipation ratios required by the production tasks are adjusted in real time to meet different production heat dissipation requirements. The springs 11 will bring certain obstacles to the flow of the coolant. When the coolant is hindered from flowing through the springs 11, an appropriate countercurrent will be formed at the springs 11, which will fully contact the heat source, killing two birds with one stone.

[0038] There are two pipe-type heat exchangers 7 , and a buckle structure 12 is provided at the buckling position of the pipe-type heat exchangers 7 . A clamp can also be used to tightly connect the two pipe-type heat exchangers 7 .

[0039] One end of the buckle structure 12 is provided with a concave hole channel 13, and the other end is provided with a protrusion 14 matching the concave hole channel 13. The concave hole channel 13 and the protrusion 14 are plugged and matched with each other to keep the relative structure of the place sealed, thereby ensuring that the pipeline heat exchanger 7 can block as much heat as possible from the heat transfer post, thereby improving the overall heat exchange efficiency. At the same time, plug-in tight connection can also be achieved.

[0040] The protrusion 14 is a column with inclined side walls, and the inclined side walls provide directional guidance for the insertion of the recessed hole groove 13 and the protrusion 14. An elastic sphere is provided at the top of the column, and a circular groove matching the elastic sphere is provided at the bottom of the recessed hole groove 13. The elastic sphere is pressed into the circular groove, and after expansion, the diameter of the elastic sphere becomes larger and engages with the groove of the recessed hole groove 13.

[0041] The flow direction of the coolant inside the pipe heat exchanger 7 is opposite to the flow direction of the water flow inside the water pipe 2. Through the principle of convection heat transfer, for example, the water with higher temperature flows from the left side, and the temperature on the left side of the pipe heat exchanger 7 is relatively hotter. The coolant with lower temperature flows from the right side, and the temperature on the left side of the pipe heat exchanger 7 is relatively lower. The temperature difference at both ends of the pipe heat exchanger 7 is quickly neutralized, further improving the heat dissipation and cooling effect there.

[0042] It also includes a circulation pump and a fan, which are arranged on one side of the cooling device 5. The circulation pump and the fan provide power for the coolant inside the cooling device 5 to flow in one direction, thereby increasing the flow speed of the coolant and improving the heat dissipation efficiency.

[0043] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention shall be included in the scope of the claims.

Claims

1. An external cooling device for a water-cooled generator set, comprising an engine and a water pipe, wherein the water pipe comprises a first water inlet and a first water outlet, wherein the first water inlet is connected to one end of the engine, and the first water outlet is connected to the other end of the engine, and the hot air in the engine is cooled by the water pipe and then returns to the inside of the engine, wherein: The water pipe is coated with a cooling device, a heat conductive paste is provided between the cooling device and the water pipe, the heat conductive paste is an organic resin, coolant flows inside the cooling device, when the water-cooled generator needs to be cooled quickly, the coolant flows quickly to cool the water in the water pipe through heat conduction, the cooling device is a pipe-type heat exchanger, the pipe-type heat exchanger is a semicircular pipe, both ends of the pipe-type heat exchanger are closed, and a second water inlet and a second water outlet are provided at both ends.

2. The external cooling device for a water-cooled generator set according to claim 1, characterized in that: At least one rib is arranged inside the pipe-type heat exchanger, and the rib matches the pipe-type heat exchanger.

3. The external cooling device for a water-cooled generator set according to claim 2, characterized in that: Springs are arranged between the ribs.

4. The external cooling device for a water-cooled generator set according to claim 1, characterized in that: There are two pipe-type heat exchangers, and buckle structures are provided at the buckling positions of the pipe-type heat exchangers.

5. The external cooling device for a water-cooled generator set according to claim 4, characterized in that: One end of the buckle structure is provided with a concave hole channel, and the other end is provided with a protrusion matching the concave hole channel.

6. The external cooling device for a water-cooled generator set according to claim 5, characterized in that: The protrusion is a column with inclined side walls, an elastic sphere is arranged at the top of the column, and a circular groove matching the elastic sphere is arranged at the bottom of the concave hole channel.

7. The external cooling device for a water-cooled generator set according to claim 1, characterized in that: The flow direction of the coolant inside the pipe heat exchanger is opposite to the flow direction of the water flow inside the water pipe.

8. An external cooling device for a water-cooled generator set according to any one of claims 1 to 7, characterized in that: It also includes a circulation pump and a fan, which are arranged on one side of the cooling device and provide power for the coolant inside the cooling device to flow in one direction.

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