Combined type multi-source system locomotive cooling device and locomotive vehicle

Abstract

The invention discloses a combined type multi-source system locomotive cooling device and a locomotive vehicle. The cooling device comprises an air duct, a water cooling unit and a cooling tower. The cooling tower and the locomotive heating component are arranged on the lower side of the water-cooling unit, air inlets are formed in the two sides of the water-cooling unit, an air outlet is formed in the bottom of the water-cooling unit, an air inlet is formed in the top of the cooling tower and communicated with the water-cooling air outlet through an air duct, and an air outlet is formed in the bottom. After the cooling tower fan is started, environment cold air enters the water-cooling unit through the water-cooling air inlet, is guided into the cooling tower through the air outlet and the air duct, and is finally discharged through the cooling tower air outlet, so that the cooling tower cools a locomotive internal combustion engine, and the water-cooling unit cools locomotive heating parts. Compared with a traditional design, cooling air of the water chilling unit is introduced into the cooling tower, the air inlet resistance of the cooling tower is reduced, and the air inlet volume and the heat dissipation capacity are improved; the cooling tower does not need to be independently arranged, so that the design of the vehicle body is simplified; a fan of a water cooling unit is omitted, a cooling tower fan is shared for air induction, and the device cost is greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooling devices, in particular to a composite multi-source locomotive cooling device and a locomotive vehicle. BACKGROUND

[0002] Currently, the independent cooling system needs to be configured for the heat dissipation requirements of different power sources on the multi-source locomotive (the so-called multi-source refers to the power source being an internal combustion engine and a power battery). The water chiller is specially used for cooling the power battery, and the cooling tower is specially used for cooling the internal combustion engine. Due to the functional partition consideration, the water chiller and the cooling tower are usually arranged separately, and they are independent of each other in terms of cooling air circulation and cooling water circulation, and have no direct connection. In order to ensure the cooling efficiency, the water chiller is independently configured with a cooling fan to drive air flow heat exchange, and the cooling tower is also independently configured with a cooling fan to meet its own air intake requirement. The layout and air intake diagram of the existing composite multi-source locomotive cooling device are shown in Figure 1

[0003] However, the existing cooling system has three significant deficiencies: first, the cooling tower needs to build an independent air intake channel, which increases the air intake resistance and easily causes the problem of insufficient air intake, thereby restricting its heat dissipation capacity; second, two types of equipment need to be arranged with independent air inlets on the locomotive body, which increases the complexity of the structure design of the locomotive body and improves the manufacturing process difficulty; third, the equipment is respectively configured with independent fans, which not only increases the equipment purchase cost of the whole cooling system, but also increases the overall energy consumption of the locomotive due to the operation of the double fans, and also increases the equipment maintenance workload. SUMMARY

[0004] The present application provides a composite multi-source locomotive cooling device and a locomotive vehicle to overcome the above problems.

[0005] In order to achieve the above purpose, the technical scheme of the present application is: In one aspect, the present application provides a composite multi-source locomotive cooling device, comprising an air duct, a water chiller and a cooling tower. ​The cooling tower and the heat generating component of the locomotive are arranged at the lower side of the water cooling unit, air inlets of the water cooling unit are arranged at two sides of the water cooling unit, and air outlets of the water cooling unit are arranged at the bottom of the water cooling unit; an air inlet of the cooling tower is arranged at the top of the cooling tower, and an air outlet of the cooling tower is arranged at the bottom of the cooling tower; the air inlet of the cooling tower is arranged at the lower side of the air outlet of the water cooling unit, and the air inlet of the cooling tower and the air outlet of the water cooling unit are connected through the air duct; after the fan in the cooling tower is started, ambient cold air outside the water cooling unit can enter the water cooling unit through the air inlet of the water cooling unit, enter the air duct through the air outlet of the water cooling unit, be guided to the air inlet of the cooling tower through the air duct, and finally be discharged to the outside of the locomotive through the air outlet of the cooling tower, so that the cooling tower cools the internal combustion engine of the locomotive and the water cooling unit cools the heat generating component of the locomotive.

[0006] Further, the air duct is a sealed air guiding duct.

[0007] Further, the water cooling unit is internally provided with heat exchange coils which are in communication with the heat generating component of the locomotive. The heat generating component of the locomotive is a battery cabinet, which is arranged at the lower side of the water cooling unit and is located at a side away from the air outlet of the water cooling unit.

[0008] Further, a detachable air filter is arranged at the air inlet of the water cooling unit, the filter is made of polyester fiber filter material, and the filtering precision is 5-10 microns. Further, an arc-shaped air guiding plate for guiding air flow is arranged at the side of the water cooling unit close to the air inlet of the water cooling unit.

[0009] Further, the fan is an axial flow fan.

[0010] In still another aspect, the application provides a locomotive vehicle comprising the combined multi-source locomotive cooling device.

[0011] The application has the following advantages: The combined multi-source locomotive cooling device disclosed by the application introduces cooling air into the cooling tower through the air duct, which reduces the air inlet resistance of the cooling tower, increases the air inlet volume of the cooling tower, and improves the heat dissipation capacity of the cooling tower; the cooling tower and the water cooling unit share one air inlet, so that the air inlet of the cooling tower does not need to be arranged separately on the vehicle body, which simplifies the design of the vehicle body; the fan in the water cooling unit is cancelled, so that the water cooling unit and the cooling tower share one fan, i.e., the fan of the cooling tower is used to guide air, the air first passes through the water cooling unit and then passes through the cooling tower, which greatly reduces the cost of the device. BRIEF DESCRIPTION OF DRAWINGS To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 A schematic diagram of the layout and air intake of the existing composite multi-source locomotive cooling system; Figure 2 This is a schematic diagram of the layout and air intake of a composite multi-source locomotive cooling device disclosed in an embodiment of the present invention.

[0013] In the picture: 1. Air duct; 2. Water-cooled unit; 21. Air inlet of water-cooled unit; 22. Air outlet of water-cooled unit; 3. Cooling tower; 31. Cooling tower air inlet; 32. Cooling tower air outlet; 4. Locomotive heating components; 5. Fan. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Example 1: like Figure 2 The image shows a composite multi-source locomotive cooling device provided in this embodiment, including an air duct 1, a water-cooled unit 2, and a cooling tower 3; The cooling tower and the locomotive heat generating component 4 are arranged on the lower side of the water cooling unit 2, both sides of the water cooling unit 2 are provided with water cooling unit air inlets 21, and the bottom of the water cooling unit 2 is provided with a water cooling unit air outlet 22; the top of the cooling tower is provided with a cooling tower air inlet 31, and the bottom of the cooling tower is provided with a cooling tower air outlet 32; the cooling tower air inlet 31 is arranged on the lower side of the water cooling unit air outlet 22, and an air duct 1 is arranged between the cooling tower air inlet 31 and the water cooling unit air outlet 22; after the fan 5 in the cooling tower is started, the ambient cold air outside the water cooling unit 2 can enter the inside of the water cooling unit 2 through the water cooling unit air inlet 21, and then enter the air duct through the water cooling unit air outlet 22, and then is guided to the cooling tower air inlet 31 through the air duct and enters the inside of the cooling tower, and finally is discharged to the outside of the locomotive through the cooling tower air outlet 32, so that the cooling tower cools the internal combustion engine of the locomotive and the water cooling unit 2 cools the locomotive heat generating component 4.

[0016] The water cooling unit 2 exchanges heat with the locomotive heat generating component 4 by means of ambient cold air and heat exchange components arranged in the water cooling unit 2, so that the locomotive heat generating component 4 is cooled; after the ambient cold air flows through the water cooling unit 2, the heat of the heat exchange components is taken away, so the temperature is increased, and then the ambient cold air enters the cooling tower through the air duct; the fan 5 in the cooling tower is started to form negative pressure suction, so that the hot air and the heat exchange unit (such as a spray cooling water and a filler layer) in the cooling tower are fully heat exchanged, and finally the airflow carrying heat is discharged to the outside of the locomotive, so that the water cooling unit 2 cools the locomotive heat generating component 4 and the cooling tower cools the internal combustion engine of the locomotive.

[0017] The composite multi-source locomotive cooling device disclosed by the application introduces the cooling air entering the water cooling unit into the cooling tower through the air duct, which reduces the air inlet resistance of the cooling tower compared with separately arranging the air duct for the cooling tower on the locomotive, thereby improving the air inlet flow of the cooling tower and the heat dissipation capacity of the cooling tower; moreover, the cooling tower and the water cooling unit share one air inlet (water cooling unit air inlet) in the device, so that the air inlet for the cooling tower does not need to be separately arranged on the locomotive body, thereby simplifying the design of the locomotive body; meanwhile, the fan in the water cooling unit is cancelled in the device, so that the water cooling unit and the cooling tower share one fan, that is, the fan of the cooling tower is used to guide the air, the air first passes through the water cooling unit and then passes through the cooling tower, thereby greatly reducing the cost of the device.

[0018] Preferably, the air duct is a sealed flow guide air duct, so as to avoid the hot air from leaking to the battery cabinet area and to guide the airflow into the cooling tower in a directional manner, so that the airflow is continuously heat exchanged with the heat exchange unit in the cooling tower under the suction of the fan 5, and finally the airflow carrying heat is discharged to the outside of the locomotive, so as to realize the cooling water temperature reduction circulation and the continuous cooling of the locomotive heat generating component 4, and to maintain the temperature stability of the battery cabinet operation environment.

[0019] The air duct body in the embodiment is integrally molded by using flame-retardant modified PP to eliminate the joint gap; the air duct and the air outlet 22 of the water cooling unit and the air inlet 31 of the cooling tower are provided with high and low temperature resistant silicone rubber sealing pads with a thickness of 3-5 mm, and are fixed by bolt compression with elastic pads.

[0020] Preferably, the water cooling unit 2 is internally provided with a heat exchange coil in communication with the locomotive heat generating component 4; The locomotive heat generating component 4 is a battery cabinet, which is arranged on the lower side of the water cooling unit 2 and is located on the side away from the air outlet 22 of the water cooling unit. The heat exchange coil can realize heat exchange with the battery cabinet. The layout of the battery cabinet away from the air outlet 22 of the water cooling unit can avoid the direct blowing of hot air to affect the operating temperature, thereby ensuring the working stability of the battery cabinet.

[0021] Preferably, the water cooling unit is provided with a detachable air filter at the air inlet 21. The filter is made of polyester fiber filter material with a filtering accuracy of 5-10 μm to effectively intercept dust impurities in the ambient air and prevent dust accumulation and fouling of the heat exchange coil. The detachable design facilitates cleaning and maintenance, thereby prolonging the service life of the water cooling unit 2. Preferably, the water cooling unit 2 is internally provided with an arc-shaped flow guide plate near the side of the water cooling unit air inlet 21 for guiding airflow to enter. The arc-shaped flow guide plate guides the airflow to uniformly flow through the heat exchange coil area, avoids local airflow dead angle, improves the overall heat exchange efficiency of the heat exchange coil, and ensures the cooling effect of the water cooling unit 2.

[0022] Preferably, the fan 5 is an axial suction fan, which can form a stable negative pressure suction effect to ensure that the airflow continuously and directionally flows through the air duct and the cooling tower heat exchange unit, improve the cooling tower heat exchange efficiency, and maintain the stability of the closed loop circulation of the cooling system.

[0023] Embodiment 2 A locomotive vehicle comprises the composite multi-source locomotive cooling device, which realizes the collaborative cooling of the locomotive internal combustion engine and the battery cabinet, optimizes the thermal environment in the cabin of the locomotive, avoids local heat accumulation, and improves the overall heat dissipation efficiency and operating stability of the locomotive.

[0024] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A composite multi-source locomotive cooling device, characterized in that, It includes air ducts (1), water-cooled units (2) and cooling towers (3); The cooling tower and the locomotive heating component (4) are both located on the lower side of the water-cooled unit (2). The water-cooled unit (2) has air inlets (21) on both sides and an air outlet (22) at the bottom. The cooling tower has an air inlet (31) at the top and an air outlet (32) at the bottom. The cooling tower has an air inlet (31) at the top and an air outlet (32) at the bottom. The cooling tower air inlet (31) is located below the water-cooled unit air outlet (22), and a space is provided between the cooling tower air inlet (31) and the water-cooled unit air outlet (22). There is a duct (1); after the fan (5) inside the cooling tower is started, the ambient cold air outside the water-cooled unit (2) can enter the water-cooled unit (2) through the air inlet (21) of the water-cooled unit, and enter the duct through the air outlet (22) of the water-cooled unit. It is then directed to the air inlet (31) of the cooling tower through the duct and enters the interior of the cooling tower. Finally, it is discharged to the outside of the locomotive through the air outlet (32) of the cooling tower, thereby realizing the cooling tower for the internal combustion engine of the locomotive and the cooling unit (2) for the heat-generating components (4) of the locomotive.

2. The composite multi-source locomotive cooling device according to claim 1, characterized in that, The air duct (1) is a sealed air guiding duct.

3. The composite multi-source locomotive cooling device according to claim 1, characterized in that, The water-cooled unit (2) is equipped with a heat exchange coil that is connected to the locomotive heating component (4); The locomotive heating component (4) is a battery cabinet, which is located on the lower side of the water-cooled unit (2) and on the side away from the air outlet (22) of the water-cooled unit.

4. The composite multi-source locomotive cooling device according to claim 1, characterized in that, The water-cooled unit is equipped with a detachable air filter at the air inlet (21). The filter is made of polyester fiber filter material and has a filtration accuracy of 5-10μm.

5. The composite multi-source locomotive cooling device according to claim 1, characterized in that, The water-cooled unit (2) has an arc-shaped guide plate on the side near the air inlet (21) of the water-cooled unit for guiding airflow in.

6. The composite multi-source locomotive cooling device according to claim 1, characterized in that, The fan (5) is an axial flow exhaust fan.

7. A locomotive and rolling stock, characterized in that, Includes the composite multi-source locomotive cooling device as described in claim 1.

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