JPS59153651A - Device for ventilating and cooling diesel electric locomotive - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a ventilation cooling device for a diesel-electric locomotive, and in particular to a cooling device for a dynamic brake resistor of a diesel-electric locomotive.

[Prior art]

In conventional diesel electric locomotives, the radiator system for cooling water of the diesel engine, which generally consists of a radiator core, radiator fan, etc., and the dynamic brake system, which has a resistor, are located at different positions and spaced apart in the longitudinal direction. They were placed separately. For this reason, there was a drawback that the vehicle body length became long.

As one means to solve this drawback, it has been proposed to provide a radiator core on the side of the vehicle body, a radiator fan in the center, and a dynamic brake resistor above the radiator fan.

This has the advantage that both the radiator core and the resistor can be cooled by the - number of radiator fans, and the length of the vehicle body does not need to be increased.

However, since the resistor is exposed on the top of the vehicle body, rainwater can splash onto the high-temperature elements and supporting insulators, shortening their lifespan. As a solution to these drawbacks, the same applicant proposed a plan in which a radiator is placed on the side of the vehicle body, dynamic brake resistors are placed inside the radiator at appropriate intervals, and both are ventilated and cooled by a common fan. More suggested. However, this proposal also has the following problems. That is, since the radiator and the dynamic brake resistor are cooled together by ventilation, a larger air volume is naturally required than when cooling only the radiator or only the resistor. The radiator is There is a problem in that the radiator core fins vibrate, especially in areas where the wind speed is high, resulting in fin vibration noise. Furthermore, since the resistor is installed in a limited space inside the radiator, there is a drawback that it is extremely difficult to remove and install the resistor during maintenance and inspection.

[Purpose of the invention]

An object of the present invention is to eliminate the disadvantages of the prior art described above, prevent the generation of vibration noise of the radiator core fin when the dynamic brake resistor is placed inside the radiator, and prevent the generation of vibration noise of the dynamic brake resistor. To provide a ventilation cooling system for a diesel-electric locomotive which facilitates maintenance and inspection and effectively cools a resistor.

[Summary of the invention]

In order to achieve this object, the present invention provides a diesel engine with a radiator of a diesel engine disposed on the side of the vehicle body, a dynamic brake resistor disposed inside the radiator, and a fan that sucks cooling air through the radiator and resistor. In a ventilation cooling system for an electric locomotive, the resistor is divided into a plurality of units, each unit is distributed and arranged within the ventilation surface of the radiator, and the air passing through the radiator is dynamically arranged on the side of the radiator. It is equipped with a firefly plate that leads to the brake resistor.

[Embodiments of the invention]

The present invention will be explained below using an example.

A radiator fan 4 rotationally driven by a main generator 2, a diesel engine 3, and a radiator fan drive device 5 is sequentially arranged in the locomotive car body 1 in the longitudinal direction of the car body.

A dynamic brake resistor 7 (see FIG. 3) is provided inside the radiator 6 provided on both sides of the locomotive body. This resistor 7 is divided into a plurality of (two in the illustrated example) resistor units 7a, and each resistor unit 7a is distributed within the ventilation plane of the radiator so that it fits within the ventilation plane of the radiator. It is located.

As is clear from Fig. 3, the radiator 6 has three
It is composed of divided radiator units 6a, each with a ventilation gap b (usually 10 to 20 rtt).
x ), and there is also a ventilation gap C (usually between 50 and 70 mm) between the mounting frame 8 and the mounting frame 8 fixed to the vehicle body 1.
is provided. The radiator 6 and the dynamic brake resistor 7 are arranged side by side with an interval H between 50 and 300 mm. The resistor unit 7a of the Daikamic brake resistor 7 is arranged with a ventilation gap af, and is attached to a lower resistor support stand 9a and an upper resistor support stand 9b attached to the vehicle body 1. perpendicular to the resistor,
The lower part is mounted through a resistor support insulator 10 so as to be vertical so as to receive the load of the resistor. This mounting structure makes it easy to install inside the shell. This support insulator 1
An insulator cover 11 is provided above the insulator 10 to protect the insulator 10 in case rain or the like penetrates from the upper part. 1
Reference numeral 2 denotes a partition wall that separates the radiator chamber into an independent chamber.The partition wall 12 is provided at the front and rear of the vehicle body, and is inclined so as to taper toward the center to improve air circulation. Reference numeral 14 designates an air regulating plate that guides the wind that has passed through the radiator 6 to the resistor unit 7a, and 15 indicates a hole provided in the air regulating plate for adjusting the air volume.

The ventilation fan 4 is arranged at the upper center of the vehicle body 1, sucks in cooling air through two radiators 6 on the sides of the vehicle body and the dynamic brake resistor 7, and discharges the heated cooling air from the top surface of the vehicle body.

The fan 4 is driven by the diesel engine 2 via a propeller shaft 20, a gear box 21, and a vertical shaft 22. Of course, this can also be done by a separate drive motor.

A ventilation port 13 is provided on the side of the partition wall 12 opposite to the diesel engine to take in cooling air to completely lower the temperature of the gear box 21.

With the above configuration, since each unit net 7a of the dynamic brake resistor 7 is distributed and arranged within the ventilation surface of the radiator 60, the wind speed within the ventilation surface of the radiator 60 becomes relatively uniform. Also, since there are no locally high wind speed areas, it is possible to prevent the generation of vibration noise from the radiator core fin. Further, since the airflow plate 14 effectively guides the wind that has passed through the radiator 6 to the resistor, the resistor can be efficiently cooled. Furthermore, in the above embodiment, a gap bt- is provided between the two radiator units 68, and each resistor unit 7a is arranged to face this gap, so that the radiator unit 6a passing through this gap The cooling air that is not heated by this comes to directly hit the resistor unit 7a, and the resistor unit 1-
72 cooling efficiency improves. Furthermore, since the dynamic brake resistor 7 is divided into multiple units, each resistor unit 7a is small and lightweight, making it extremely easy to remove and install in a narrow space during maintenance and inspection. Since the span length of the element 19 (FIG. 6) is short and rises, the sag due to thermal expansion of the element is reduced, and accidents such as short-circuiting of the element due to sagging are also eliminated.

In addition, in the above embodiment, when the dynamic brake resistor is divided into two parts on one side, 8! ! , but it can also be divided into three or more.

Further, if a gap C is also provided between the radiator 6 and the mounting frame 8, the cooling air can easily flow down from this gap C, and a more appropriate air volume can be achieved.

Furthermore, the air flowing in through the radiator 6 and the resistor 7 is heated by both of them, and therefore has a high temperature.

Therefore, there is a risk that peripheral devices such as the radiator fan drive device 15 and the radiator fan 4 will be adversely affected. For this purpose, a ventilation hole 13 is provided in the partition wall 12, through which cooling air for cooling the compressor in the compressor room (not shown) flows. 9. This cools the radiator chamber and eliminates the above problem.

〔Effect of the invention〕

As explained above, according to the present invention, the dynamic brake resistor is divided into a plurality of units and distributed in the ventilation plane of the two radiators, so that the speed of the cooling air passing through the radiator is uniformized. Since there are no areas where the wind speed is extremely high, it is possible to prevent the generation of vibration noise from the radiator core fin. Another advantage of the dynamic brake resistor being that it is divided into multiple units is that each unit is small and lightweight, making it easier to remove and install during maintenance and inspection, as well as preventing short-circuit accidents caused by sagging elements. be. In addition, since the air baffle plate guides the cooling air to the resistor, effective cooling can be achieved.

[Brief explanation of the drawing]

FIG. 1 is an overall plan view of a diesel electric locomotive that employs a dynamic brake resistor mounting device for a diesel electric locomotive according to an embodiment of the present invention, and FIG. 2 is a side view of FIG. Figure 3 is a plan view of the radiator section, Figure 4 is a ■-IV view of Figure 3, Figure 5 is a ■-■ view of Figure 3,
FIG. 6 is an enlarged view of section F in FIG. l... Vehicle body, 4... Radiator fan, 6... Radiator, 7... Dynamic brake resistor, 8
... Mounting frame, 10... Support insulator, 11... Insulator cover, 12... Partition wall, 15... Air conditioning board. Agent Patent Attorney Akio Takahashi Figure 1 Figure 3 Figure 5

Claims (1)

[Claims] 1. A radiator is attached to the side of the vehicle body, a dynamic brake resistor is arranged inside, and a radiator fan provided in the middle of the vehicle body is driven to rotate;
Outside the car body, in a KLfcf easel electric locomotive, air is admitted through the radiator to cool both this radiator and the dynamic brake resistor, inside the radiator, adjacent to the dynamic brake resistor. A brake resistor is installed in parallel, and
This resistor is divided into a plurality of units, and the resistor units are distributed and arranged within the ventilation surface of the radiator, and the air passing through the radiator is guided to the dynamic brake resistor on the side of the radiator. A ventilation cooling device for a diesel-electric locomotive, characterized by comprising a plate. 2. A ventilation cooling system for a diesel 1-gas locomotive, characterized in that the gap 7 between the radiator and the dynamic brake resistor is 50 to 300++ m+. 3. Ventilation cooling of a diesel electric locomotive according to claim 1, characterized in that the dynamic brake resistor is attached to resistor support stands provided above and below via resistor support insulators. Device. 4. The ventilation cooling device for a diesel electric locomotive according to claim 3, wherein the resistor support base is provided with a rain cover that covers the resistor support insulator. 5. The resistor supporting insulator is oriented so that the upper part is perpendicular to the resistor and the lower part is vertical so as to receive the load of the resistor. The ventilation cooling system of the diesel-electric locomotive described. 6. The ventilation cooling device for a diesel electric locomotive according to claim 1, characterized in that a ventilation opening is provided in a partition wall of the anti-diesel engine that partitions the radiator fan, etc.