CN110803175A - An air duct system for a diesel locomotive - Google Patents

Abstract

The invention relates to the technical field of air ducts, in particular to an air duct system for an internal combustion engine locomotive. There is a buffer zone at the air inlet of the air duct body, and the air inlet and the buffer zone are connected by a deflector. Two lateral deflectors divide the inner cavity of the air duct body into three channels. In the air duct system of an internal combustion engine locomotive of the present invention, the setting of the deflector 1 reduces the resistance at the air inlet, the buffer zone effectively buffers and homogenizes the air volume of the air outlet, and the lateral deflector effectively distributes and exports the air volume evenly, The arc-shaped deflector guides the air volume of the air outlet to effectively reduce the wind resistance, the air volume correction adjustment plate can accurately adjust the air volume error of each air outlet, and the grid plate effectively homogenizes the air volume and pressure of the air outlet.

Description

An air duct system for a diesel locomotive

technical field

The invention relates to the technical field of air ducts, in particular to an air duct system for an internal combustion engine locomotive.

Background technique

The upper part of the frame of the diesel locomotive is equipped with a fan, and the wind of the fan is introduced vertically from the upper part of the frame through the air duct of the frame, evenly distributed to the air outlet at the bottom of the frame, and then transmitted to the traction motor of the bogie to cool the traction motor. effect. The traditional diesel locomotive air duct generally adopts two schemes. One is the forced air guide air duct structure. A deflector is set at the air inlet of the air duct to directly distribute the air volume evenly to different air ducts. This forced air guide air duct structure The distribution of air volume is convenient and uniform, and it is easy to adjust, but the air resistance in the air cavity is large; the other is the wide air duct structure with automatic distribution of air pressure. Large air duct structure, the air duct air inlet and different air outlets are in the same air cavity, there is no air duct tributaries, the air duct air inlet and air outlet have no air guide plates, and the air volume is automatically distributed to each air outlet. The automatically allocated wide and large air duct structure takes up a lot of space, the large air duct is prone to turbulence, the local wind resistance is large, and the air pressure and air pressure uniformity of different air outlets is relatively poor. The air volume of the air outlet is small. Both air duct structures are difficult to achieve satisfactory results.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies that turbulent flow is easily generated in the air duct, the local wind resistance is large, and the uniformity of air volume and pressure is poor when the existing air duct is diverted, the present invention provides an air duct system for an internal combustion engine locomotive, which is formed by the arrangement of a deflector. The inclined air inlet angle reduces the resistance at the air inlet, and the buffer area effectively buffers and homogenizes the air volume at the air outlet. The diversion pressure of the deflector also reduces the wind resistance during the diversion. The lateral deflector effectively distributes the air volume for export, and the arc deflector guides the air volume of the air outlet to effectively reduce the wind resistance, and the grid plate effectively homogenizes The air volume and pressure of the air outlet.

The technical solution adopted by the present invention to solve the technical problem is as follows: an air duct system for an internal combustion engine locomotive, comprising an air duct body formed by welding steel plates, one end of the air duct body is provided with an air inlet, and the lower end surface of the air duct body is sequentially arranged There are a first lower air outlet, a second lower air outlet and a third lower air outlet, an upper air outlet is opened on the side of the middle part of the air duct body, and the air duct body is located at the air inlet. The deflector is connected to the air inlet and the buffer zone, and two lateral deflectors are arranged at the end of the buffer zone, and the first lower air outlet, the second lower air outlet, the third lower air outlet and the upper air outlet are all provided. There is an arc-shaped deflector, and the front end of the arc-shaped deflector is hinged with an air volume correction adjustment plate.

Further, a grid plate is provided at the air outlet including the first lower air outlet, the second lower air outlet and the third lower air outlet.

Further, one end of the deflector is connected to the air inlet and the other end is connected to the bottom end surface of the air duct body.

Further, the included angle a between the guide plate 1 and the bottom end face of the air duct body is 30°-60°.

Further, a positioning shaft is welded on the front end of the arc-shaped deflector and is located at the bottom plate of the air duct body.

Further, a rotating handle is welded to the top of the rotating sleeve, and the end of the rotating handle is spot welded to the surface of the air duct body.

Further, the lateral deflector is perpendicular to the bottom end face of the air duct body.

Further, two lateral deflectors provided in the air duct body 1 divide the inner cavity of the air duct body into three channels and lead to the first lower air outlet, the second lower air outlet and the middle of the inner cavity of the air duct body in sequence.

The beneficial effect of the present invention is that the air duct system of an internal combustion engine locomotive of the present invention forms an inclined air inlet angle through the arrangement of the first deflector, which reduces the resistance at the air inlet, and the buffer zone effectively buffers and homogenizes the air outlet. At the same time, the air volume automatically distributes the buffer and enters the air duct separated by the lateral deflector. The buffer area reduces the diversion pressure of the lateral deflector and reduces the wind resistance during the deflector. The distribution is carried out for export, the arc-shaped deflector guides the air volume of the air outlet to effectively reduce the wind resistance, and the grid plate effectively homogenizes the air volume and pressure of the air outlet. The air duct system can effectively reduce the resistance of the air inlet, air duct and air outlet. , reduce the turbulence phenomenon and homogenize the air outlet flow. Before the air duct system is used, when the air volume of the air outlet is uneven due to the influence of installation deformation, the handle of the air volume correction adjustment plate is rotated to change the air volume correction. The angle of the adjusting plate realizes a fine adjustment of the air volume of each air outlet, and re-corrects the air volume of each air outlet.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the front view of Fig. 1;

Figure 3 is a cross-sectional view at Figure 2A-A;

Figure 4 is a cross-sectional view at Figure 2B-B;

FIG. 5 is a schematic diagram of the connection structure of the air volume correction adjusting plate in FIG. 1 .

In the figure 1. Air duct body, 2. Air inlet, 3. First lower air outlet, 4. Second lower air outlet, 5. Third lower air outlet, 6. Upper air outlet, 7. Buffer zone, 8. Deflector 1, 9. Side deflector, 10. Arc deflector, 11. Grid plate, 12. Air volume correction adjustment plate, 13. Positioning shaft, 14. Rotating bushing, 15. Rotating handle.

Detailed ways

Figure 1 is a schematic diagram of the structure of the present invention, an air duct system for a diesel locomotive, comprising an air duct body (1) composed of welded steel plates, characterized in that an air inlet (2) is provided at one end of the air duct body (1). ), and the lower end surface of the air duct body (1) is sequentially provided with a first lower air outlet (3), a second lower air outlet (4) and a third lower air outlet (5). An upper air outlet (6) is opened on the side, and the air duct body (1) is provided with a buffer zone (7) at the air inlet (2), and is connected to the air inlet (2) through a deflector (8). and a buffer zone (7), the end of the buffer zone (7) is provided with two lateral deflectors (9), the first lower air outlet (3), the second lower air outlet (4), the third lower outlet Both the air outlet (5) and the upper air outlet (6) are provided with an arc-shaped air guide plate (10), and the front ends of the arc-shaped air guide plates (10) are hinged with an air volume correction adjustment plate (12).

1 to 4 , each of the air outlets of the first lower air outlet 3 , the second lower air outlet 4 and the third lower air outlet 5 is provided with a grid plate 11 . The arrangement of the arc deflector 10 and the grille 11 at the first lower air outlet 3, the second lower air outlet 4, the third lower air outlet 5 and the upper air outlet 6 can make the first lower air outlet 3, the second lower air outlet The lower air outlet 4, the third lower air outlet 5 and the upper air outlet 6 effectively guide the air volume, reduce the wind resistance, and homogenize the first lower air outlet 3, the second lower air outlet 4, the third lower air outlet 5 and the upper air outlet. The air volume and air pressure at the tuyere 6.

1 to 4, one end of the deflector 8 is connected to the air inlet 2 and the other end is connected to the bottom end face of the air duct body 1, and the angle a between the deflector 1 8 and the bottom end face of the air duct body 1 is 30 °-60°. The inclined arrangement of the deflector 1 8 effectively reduces the resistance at the air inlet 2 .

1 and 5, a positioning shaft 13 is welded on the front end of the arc-shaped deflector 10 and located at the bottom plate of the air duct body 1. The positioning shaft 13 is sleeved with a rotating shaft sleeve 14, and the outer surface of the rotating shaft sleeve 14 is welded. The air volume correction adjustment plate 12 is welded, and the top end of the rotary shaft sleeve 14 is welded with a rotary handle 15 , and the end of the rotary handle 15 is connected with the surface of the air duct body 1 by spot welding. The air volume correction and adjustment plate 12 can be rotated in the air duct body 1 under the driving of the rotating handle 15, so as to realize the correction and adjustment of the air volume entering the arc-shaped deflector 10. After the slight correction and adjustment of the air volume is realized, the The rotary handle 15 is connected to the upper end face of the air duct body 1 by means of spot welding, which plays the role of fixing the air volume correction adjustment plate 12 .

1 to 4, the lateral deflector 9 is perpendicular to the bottom end face of the air duct body 1, and the two lateral deflectors 9 divide the inner cavity of the air duct body 1 into three channels and guide them to the first lower air outlet in turn. 3. The second lower air outlet 4 and the middle of the inner cavity of the air duct body 1.

When in use, the inclined air inlet angle is formed by the setting of the deflector 1 8, which reduces the resistance at the air inlet 2, and the buffer area 7 effectively buffers and homogenizes the first lower air outlet 3, the second lower air outlet 4, The air volume at the third lower air outlet 5 and the upper air outlet 6, at the same time, the air volume is automatically distributed and buffered and then enters the air duct separated by the lateral deflector 9. The buffer zone 7 reduces the diversion pressure of the lateral deflector 9 and reduces the In order to reduce the wind resistance during diversion, the lateral deflector 9 effectively distributes the air volume evenly for export. The air volume at the air outlet 6 is guided to effectively reduce the wind resistance, the grid plate 11 effectively equalizes the air volume and pressure at the first lower air outlet 3, the second lower air outlet 4 and the third lower air outlet 5, and the air volume correction adjustment plate 12 is at Driven by the rotating handle 15, the angle can be rotated in the air duct body 1 and at the front end of the arc-shaped deflector 10, so as to realize the correction and adjustment of the air volume entering the arc-shaped deflector 10, and the air duct system can effectively Reduce the resistance of the air inlet, air duct and air outlet, reduce the turbulence phenomenon, and homogenize the air outlet flow.

The above description is only illustrative rather than restrictive for the present invention, and those of ordinary skill in the art will understand that many modifications, changes or the like can be made without departing from the spirit and scope defined by the appended claims. effect, but will fall within the protection scope of the present invention.

Claims (8)

1. An air duct system for an internal combustion engine locomotive, comprising an air duct body (1) composed of welded steel plates, wherein one end of the air duct body (1) is provided with an air inlet (2), and the air duct body (1) is provided with an air inlet (2) at one end. ) The lower end face is sequentially provided with a first lower air outlet (3), a second lower air outlet (4) and a third lower air outlet (5), and an upper air outlet ( 6), the air duct body (1) is provided with a buffer zone (7) at the air inlet (2), and is connected to the air inlet (2) and the buffer zone (7) through a deflector (8), so Two lateral deflectors (9) are arranged at the end of the buffer zone (7), the first lower air outlet (3), the second lower air outlet (4), the third lower air outlet (5) and the upper air outlet (6) is provided with an arc-shaped deflector (10), and the front end of the arc-shaped deflector (10) is hinged with an air volume correction adjustment plate (12). 2. An air duct system for an internal combustion engine locomotive according to claim 1, wherein the first lower air outlet (3), the second lower air outlet (4) and the third lower air outlet (5) A grid plate (11) is arranged at the air outlet. 3 . The air duct system of a diesel locomotive according to claim 1 , wherein one end of the deflector ( 8 ) is connected to the air inlet ( 2 ) and the other end is connected to the bottom end surface of the air duct body ( 1 ). 4 . 4 . The air duct system for a diesel locomotive according to claim 1 , wherein the angle a between the first (8) deflector and the bottom end face of the air duct body (1) is 30°-60°. 5 . 5. An air duct system for a diesel locomotive according to claim 1, wherein a positioning shaft (13) is welded on the front end of the arc-shaped deflector (10) and is located at the bottom plate of the air duct body (1), so A rotating shaft sleeve (14) is sleeved on the positioning shaft (13), and an air volume correction adjusting plate (12) is welded on the surface of the rotating shaft sleeve (14). 6. An air duct system for an internal combustion engine locomotive according to claim 1 or 5, characterized in that a rotating handle (15) is welded on the top of the rotating sleeve (14), and the end of the rotating handle (15) is connected to the The air duct body (1) is connected by spot welding on the surface. 7. An air duct system for a diesel locomotive according to claim 1, characterized in that, two lateral guide plates (9) arranged in the air duct body (1) connect the inner cavity of the air duct body (1) It is divided into three channels and leads to the first lower air outlet (3), the second lower air outlet (4) and the middle of the inner cavity of the air duct body (1) in turn. 8 . The air duct system for a diesel locomotive according to claim 7 , wherein the lateral deflector ( 9 ) is perpendicular to the bottom end face of the air duct body ( 1 ). 9 .

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