WO2020119451A1 - Railway train and fresh air inlet snow-melting device of train - Google Patents

Abstract

Provided is a fresh air inlet snow-melting device of a train, the device comprising an air inlet grating (1), a rainwater separator (2), and a heating device. The rainwater separator (2) is arranged behind the air inlet grating, and is provided with a labyrinth-type air inlet channel and water drainage holes (206). The side, close to the air inlet grating, in the rainwater separator is provided with the heating device. When accumulated snow is formed at an air inlet of the air inlet grating, the heating device can be started to melt the accumulated snow, meanwhile, the labyrinth-type air inlet channel of the rainwater separator can separate water carried in inlet air due to the melting snow and drain the water from the water drainage holes (206). The device eliminates air inlet resistance, ensures the inlet air volume of an air conditioner, also prevents snow water from entering an air-conditioning system, and ensures the performance of the air-conditioning system of a train under the working conditions of snowstorm weather and low temperatures. Further provided is a railway train provided with the fresh air inlet snow-melting device.

Description

Rail train and train fresh air intake snow melting device

This application requires the priority of the Chinese patent application filed on December 10, 2018 in the Chinese Patent Office, with the application number 201811503092.X and the invention titled "a rail train and train fresh air intake snow melting device", all of which are approved by The reference is incorporated in this application.

This application requires the priority of the Chinese patent application filed on December 10, 2018 in the Chinese Patent Office, with the application number 201822067450.9 and the invention titled "a rail train and train fresh air intake snow melting device", the entire contents of which are incorporated by reference In this application.

Technical field

The invention relates to the technical field of rail trains, in particular to a rail train and a fresh air intake snow melting device of the train.

Background technique

The rail train air conditioning system needs to cope with various complex external environmental conditions during operation to meet the comfort requirements of the internal passenger room. Under the environmental conditions of Blizzard, snow is likely to accumulate at the air inlet of the air intake of the air conditioning unit, resulting in an increase in the resistance of the fresh air inlet and a decrease in the amount of fresh air, which affects the performance of the air conditioning system and thus affects passenger comfort.

Therefore, how to provide a new type of air intake device to cope with blizzard weather and low temperature conditions to ensure that the vehicle can adapt to such low temperature and harsh environmental conditions has become an important technical problem urgently needed by those skilled in the art.

Summary of the invention

In view of this, the first object of the present invention is to provide a train fresh air intake snow melting device to achieve the purpose of making it able to cope with blizzard weather and low temperature conditions, and ensure that the vehicle can adapt to such low temperature and harsh environmental conditions.

The second object of the present invention is to provide a rail train including the above-mentioned train fresh air intake snow melting device.

To achieve the above objectives, the present invention provides the following technical solutions:

A train fresh air intake snow-melting device, including an inlet grille, a rainwater separator and a heating device, the rainwater separator is arranged behind the inlet grille, the rainwater separator has a labyrinth inlet for separating rainwater A wind channel and a drain hole for draining rainwater. The rainwater separator is provided with the heating device on a side close to the inlet grille.

Preferably, the rainwater separator includes a row of arch-shaped baffles and at least one row of U-shaped baffles that are sequentially arranged from near to far and staggered relative to the inlet grille, and the arched baffles face The direction of the entrance grille is arched, and the opening of the U-shaped baffle faces the direction of the entrance grille.

Preferably, the drain hole is provided under each U-shaped baffle.

Preferably, the heating device includes an electric heating tube, and the electric heating tubes are arranged on a side of the arched baffle away from the inlet grille in a one-to-one correspondence.

Preferably, the rainwater separator further includes a V-shaped baffle plate, and the V-shaped baffle plate is connected to the arched baffle plate to enclose a volume containing the electric heating tube.

Preferably, the rainwater separator includes a row of first U-shaped baffles and a row of second U-shaped baffles, and the tip of the V-shaped baffle is formed to extend to two adjacent first U-shaped baffles For the first deflector between the plates, the first U-shaped baffle is formed with a second deflector extending to between two adjacent second U-shaped baffles.

Preferably, a flange extending into the U-shaped baffle is formed on both sides of the opening of the U-shaped baffle, and the distance between the two flanges gradually decreases along the extending direction.

Preferably, it further includes a temperature sensor and a controller, the temperature sensor is disposed at the air inlet of the intake grille, and the controller is used for the temperature at the air inlet of the intake grille to be lower than a preset The heating device is controlled to start when it is on value and the heating device is controlled to be turned off when the temperature at the air inlet of the intake grille is higher than a preset value.

Preferably, it further includes a pressure wave valve plate arranged behind the rainwater separator along the wind inlet direction.

A rail train includes the train fresh air intake snow melting device as described in any one of the above.

In order to achieve the above first object, the train fresh air intake snow melting device provided by the present invention includes an inlet grille, a rainwater separator and a heating device, wherein the rainwater separator is disposed behind the inlet grille to separate the inlet wind Entrained snow water, the rainwater separator has a labyrinth air inlet channel for separating rainwater, and a drain hole for draining rainwater. The drain hole is usually formed at the bottom of the rainwater separator. The rainwater separator is on the side near the inlet grille. It is equipped with a heating device; in application, when snow is formed at the air inlet of the intake grille, the heating device can be turned on to melt the snow, and the labyrinth air inlet channel of the rainwater separator can entrain the snow due to the melting snow. The water is separated and discharged from the drain hole. It can be seen that the above-mentioned train fresh air intake snow melting device integrates a heating device on the rainwater separator, takes up little space, does not need to change the existing structure, and can enter the inlet style. The snow at the tuyere melts, eliminating the air intake resistance, ensuring the air intake of the air conditioner, while avoiding the snow water entering the air conditioning system, and ensuring the performance of the train air conditioning system under heavy snow conditions and low temperature conditions.

In order to achieve the above second object, the present invention also provides a rail train, which includes the above-mentioned train fresh air intake and snow melting device. Since the above train fresh air intake and snow melting device has the above technical effect, it has the train fresh air intake The track train of the gas snow melting device should also have corresponding technical effects.

BRIEF DESCRIPTION

In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, without paying any creative work, other drawings can be obtained based on these drawings.

FIG. 1 is an isometric view of a fresh air intake snow melting device provided by an embodiment of the present invention;

2 is a top view of a fresh air intake snow melting device provided by an embodiment of the present invention;

FIG. 3 is a partially enlarged view at B in FIG. 2.

Among them, 1 is the inlet grille; 2 is the rainwater separator; 201 is the arched baffle; 202 is the electric heating tube; 203 is the V-shaped baffle; 204 is the first deflector; 205 is the first U-shaped baffle Plate; 206 is the drainage hole; 207 is the second deflector; 208 is the hemming; 209 is the second U-shaped baffle; 3 is the pressure wave valve plate.

detailed description

The technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

Please refer to FIGS. 1-3, FIG. 1 is an axonometric view of a fresh air intake snow melting device provided by an embodiment of the present invention, FIG. 2 is a top view of a fresh air intake snow melting device provided by an embodiment of the present invention, and FIG. 3 is a diagram 2 Partial enlarged view at B.

The embodiment of the present invention provides a fresh air intake snow melting device for a train. The fresh air intake snow melting device for a train includes a intake grille 1, a rainwater separator 2 and a heating device.

Among them, the rainwater separator 2 is disposed behind the inlet grille 1 along the air inlet direction to separate snow water entrained in the inlet wind, and the rainwater separator 2 has a labyrinth air inlet channel and a drain hole 206, a labyrinth air inlet channel Block and collide the incoming wind to change its direction and speed, so as to separate the snow water entrained and discharge it from the drainage hole 206. The drainage hole 206 is usually formed at the bottom of the rainwater separator 2 and the rainwater separator 2 is close to A heating device is provided on one side of the grille 1.

In summary, compared with the prior art, the train fresh air intake snow melting device provided by the embodiment of the present invention can turn on the heating device to melt the snow and separate the rainwater when the snow is formed at the air inlet of the intake grille 1 The labyrinth air inlet channel of the device 2 can separate the water entrained in the inlet air due to snow melting and discharge it from the drain hole 206. It can be seen that the above train fresh air intake snow melting device integrates a heating device on the rain water separator 2 It takes less space and does not need to change the existing structure. It can melt the snow at the air inlet of the intake grille 1 to eliminate the resistance of the air intake, ensure the air intake of the air conditioner, and prevent the snow water from entering the air conditioning system. And train air conditioning system performance under low temperature conditions.

Preferably, the rainwater separator 2 includes a row of arched baffles 201 and at least one row of U-shaped baffles arranged in a sequence from near to far and staggered relative to the inlet grille 1 and at least one row of arched baffles 201. The wind grille 1 is arched in the direction, that is, the arch surface of the arched baffle 201 affects the air intake, and the intake air is diverted and guided. The intake air enters the rainwater separator 2 from the gap between the two arched baffles 201, due to the U shape The opening of the baffle is oriented in the direction of the inlet grille 1. The inlet air entering from the gap between the two arch-shaped baffles 201 enters the interior of the U-shaped baffle through the middle of the opening of the U-shaped baffle, and passes through the interior of the U-shaped baffle. The inner wall diversion of the U-shaped baffle flows backward from the opening edge of the U-shaped baffle, and continues to move backward through the gap between the arched baffle 201 and the U-shaped baffle. The rainwater separator 2 of this structure has a simple structure It only needs a few rows of staggered baffles to realize the labyrinth air inlet channel, which is convenient for mass production.

Furthermore, the rainwater separator 2 further includes a housing, an opening formed toward the inlet grille 1 is formed on the housing, a U-shaped baffle and an arched baffle 201 are both disposed in the housing, and the U-shaped baffle and the arch are formed Both ends of the baffle 201 are respectively connected to the top plate and the bottom plate of the housing.

Of course, the above structure is only a preferred embodiment provided by the embodiment of the present invention, and it is not actually limited to this, and those skilled in the art can appropriately adjust it according to actual needs, which is not limited herein.

Further, as can be seen from the above inlet air flow process, the separation of inlet air and rain water mainly occurs in the U-shaped baffle. Therefore, in order to facilitate the discharge of snow water, in an embodiment of the present invention, each U-shaped baffle Drainage holes 206 are provided below, that is, drainage holes 206 are provided at corresponding positions on the bottom plate of the housing of the rainwater separator 2, so that when the incoming air collides with the inner wall of the U-shaped baffle, the inner wall of the U-shaped baffle Water droplets formed by snow water are formed, and the water droplets collect and flow down into the drain hole 206 to be discharged.

In other embodiments, a water collecting tray may be provided under all U-shaped baffles, and a drain hole 206 may be provided at the lowest point of the water collecting tray.

Preferably, in the embodiment of the present invention, the heating device includes an electric heating tube 202, and the electric heating tubes 202 are provided on the side of the arched baffle 201 away from the inlet grille 1 in a one-to-one correspondence.

It should be noted that the heating device may also be a heating film, a heating wire, etc., which are provided on the surface or inside of the arched baffle 201. Of course, in addition to the arched baffle 201, a heating device may also be provided on the U-shaped baffle.

In order to avoid contact between the electric heating tube 202 and rainwater and snow water, in the embodiment of the present invention, the rainwater separator 2 further includes a V-shaped baffle 203, the opening of the V-shaped baffle 203 faces the arched baffle 201, and the V-shaped The baffle 203 and the arched baffle 201 are connected to enclose a cavity containing the electric heating tube 202, so that the V-shaped baffle 203 and the arched baffle 201 and the top plate and bottom plate of the rainwater separator 2 can enclose a closed cavity To isolate the electric heating tube 202 from the outside world.

To further optimize the above technical solution, in order to improve the separation effect of the rainwater separator 2, in the embodiment of the present invention, the rainwater separator 2 includes a row of first U-shaped baffles 205 and a row of second U-shaped baffles 209. It takes two times of water filtration to enter the air-conditioning system. At the same time, the flow direction of the inlet air after the U-shaped baffle changes. To avoid the interference of the inlet air flowing out of each U-shaped baffle in the same row, the V-shaped baffle 203 The tip is formed with a first deflector 204 that extends to between two adjacent first U-shaped baffles 205, and the first U-shaped baffle 205 is formed to extend to two adjacent second U-shaped baffles 209 Between the second deflector 207, so that after the inlet air flows out from the first U-shaped baffle 205, under the action of the first deflector 204, it flows to the second U-shaped baffle 209 and from the second U-shaped baffle 209 After flowing out, it flows into the air conditioning system under the action of the second deflector 207.

It can be understood that the structure of the rainwater separator 2 is not limited to the above-mentioned arched baffle 201, U-shaped baffle, V-shaped baffle 203, etc., and other regular or irregular structures may be used to form a labyrinth aisle.

In order to further improve the separation effect of the U-shaped baffle on rainwater, in the embodiment of the present invention, a folded edge 208 extending into the U-shaped baffle is formed on both sides of the opening of the U-shaped baffle, and the two folded edges 208 are along the extending direction The spacing is gradually reduced, and the two folded edges 208 at the opening of the U-shaped baffle can force the air to change its direction again when the air flows out of the U-shaped baffle, thereby causing the air to change twice in the U-shaped baffle. Good separation effect.

Preferably, the fresh air intake snow melting device of the train further includes a temperature sensor and a controller. The temperature sensor is provided at the air inlet of the air intake grille 1 for measuring the temperature of the air intake of the air intake grille 1, the temperature sensor and Controller signal connection, the controller is used to control the heating device to start when the temperature at the air inlet of the grille 1 is lower than the preset value and to control when the temperature at the air inlet of the grille 1 is higher than the preset value The heating device is turned off to realize automatic control of the snow melting device, which is convenient for use.

Further, the fresh air intake snow melting device of the train further includes a temperature sensor connected to the signal of the controller. The temperature sensor is used to monitor the temperature of the heating device. When the heating device overheats, the controller turns off the heating device to avoid its failure due to overheating.

To further optimize the above technical solution, in the embodiment of the present invention, the train fresh air intake snow melting device further includes a pressure wave valve plate 3 disposed behind the rainwater separator 2 along the wind inlet direction.

Based on the provided in the above embodiment, the present invention also provides a rail train, which includes the train fresh air intake snow melting device as described in any one of the above. Since the rail train adopts the fresh air intake snow melting device of the above-mentioned embodiment, for the beneficial effects of the rail train, please refer to the above-mentioned embodiment.

The embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown in this document, but should conform to the widest scope consistent with the principles and novel features disclosed in this document.

Claims (10)

1. A train fresh air intake snow melting device, characterized in that it includes an inlet grille, a rainwater separator and a heating device, the rainwater separator is disposed behind the inlet grille, and the rainwater separator has a structure for separating rainwater A labyrinth-type air inlet channel and a drain hole for draining rainwater. The rainwater separator is provided with the heating device on a side close to the inlet grille.
2. The fresh air intake snow melting device for trains according to claim 1, characterized in that the rainwater separator includes a row of arched baffles that are sequentially arranged from near to far and staggered relative to the intake grille and at least staggered with each other and at least A row of U-shaped baffles, the arch-shaped baffles are arched toward the direction of the entrance grille, and the opening of the U-shaped baffles is directed toward the direction of the entrance grille.
3. The fresh air intake snow melting device for trains according to claim 2, characterized in that the drainage holes are provided under each U-shaped baffle.
4. The fresh air intake snow melting device for trains according to claim 2 or 3, characterized in that the heating device comprises an electric heating tube, and the electric heating tubes are provided on the arched baffle one-to-one correspondingly away from the inlet One side of the wind grille.
5. The fresh air intake snow melting device for trains according to claim 4, characterized in that the rainwater separator further comprises a V-shaped baffle, and the V-shaped baffle is connected to the arched baffle to enclose the electricity Heating the cavity of the tube.
6. The fresh air intake snow melting device for trains according to claim 5, characterized in that the rainwater separator includes a row of first U-shaped baffles and a row of second U-shaped baffles, the tip of the V-shaped baffle A first deflector extending between two adjacent first U-shaped baffles is formed, and a second U-shaped baffle extending to two adjacent ones is formed on the first U-shaped baffle Between the second deflector.
7. The fresh air intake snow melting device for trains according to any one of claims 2, 3, 5, and 6, wherein a fold extending into the U-shaped baffle is formed on both sides of the opening of the U-shaped baffle Edge, the distance between the two folded edges gradually decreases along the extending direction.
8. The fresh air intake snow melting device for trains according to any one of claims 1-3 and 5-6, further comprising a temperature sensor and a controller, the temperature sensor is provided at an air inlet of the intake grille The controller is used to control the heating device to start when the temperature at the air inlet of the intake grille is lower than a preset value and the temperature at the air inlet of the intake grille is higher than a preset When the value is controlled, the heating device is turned off.
9. The fresh air intake snow melting device for trains according to any one of claims 1-3 and 5-6, further comprising a pressure wave valve plate arranged behind the rainwater separator in the wind inlet direction.
10. A rail train is characterized by comprising the fresh air intake snow melting device of a train according to any one of claims 1-9.

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