CN209800066U - Rainproof device for exhaust chimney - Google Patents

Abstract

The utility model discloses an exhaust chimney rain insensitive device, including being used for the main exhaust pipe who is connected with the chimney gas vent, main exhaust pipe dustcoat is equipped with chimney hood casing, chimney hood casing's top is equipped with and is used for the carminative gas vent with external intercommunication, main exhaust pipe's top is equipped with the interior guide plate that is used for getting into to chimney hood casing's rivers direction to the external world, the last surface of interior guide plate sets up downwards from the central line to outside slant, the horizontal projection area more than or equal to main exhaust pipe's of interior guide plate cross-sectional area, chimney hood casing's bottom is equipped with the drainage device who is used for inside rivers exhaust. Use the utility model discloses a device, the top of main fume exhaust pipe sets up in the guide plate with the rivers that get into to the external world and lead for it does not get into in the main fume exhaust pipe, and collects the discharge through the drainage device who sets up in the bottom of chimney hood casing to rivers, has simple structure compactness, simple to operate's advantage, and the device is convenient for produce processing, operation maintenance cost low.

Description

Rainproof device for exhaust chimney

Technical Field

The utility model relates to a rail vehicle technical field, more specifically say, relate to an exhaust chimney rain insensitive device.

Background

The internal combustion rail vehicle still occupies an important position in the rail transit market, the internal combustion rail vehicle is powered by an engine, the energy of fuel is converted into mechanical energy to drive the train, and partial energy is converted into tail gas to be discharged. At present, an exhaust chimney is generally arranged on an internal combustion railway vehicle to exhaust tail gas to the roof of the vehicle, and rain prevention and water prevention of the exhaust chimney are the most important technical links. The tail gas of internal combustion track traffic vehicle passes through the exhaust chimney and exhausts at the vehicle top, for the problem that the exhaust chimney intake influences the internal-combustion engine work when solving sleet weather, the rain-proof cap of the form of bending of general installation, but this kind of rain-proof cap can make high temperature tail gas directly spout to the peripheral equipment of vehicle, still can influence in the tunnel equipment and the platform personnel's safety simultaneously. Therefore, the invention discloses the chimney waterproof cap which is simple and compact in structure, waterproof and anti-pollution.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an exhaust chimney rain insensitive device to solve the problem that the exhaust chimney intake influences the internal-combustion engine work when solving sleet weather.

In order to achieve the first object, the present invention provides the following technical solutions:

The utility model provides an exhaust chimney rain insensitive device, is including being used for the main exhaust pipe who is connected with the chimney gas vent, main exhaust pipe dustcoat is equipped with chimney cover casing, the top of chimney cover casing is equipped with and is used for the carminative gas vent of external intercommunication, the top of main exhaust pipe is equipped with and is used for entering into to the external world the interior guide plate of the rivers direction of chimney cover casing, the upper surface of interior guide plate sets up downwards to outside slant from the central line, the horizontal projection area more than or equal to of interior guide plate the cross-sectional area of main exhaust pipe, the bottom of chimney cover casing is equipped with the drainage device who is used for inside rivers exhaust.

Preferably, the drainage device is a drainage groove arranged around the circumference of the bottom of the chimney hood shell, a drainage pipe is arranged at the bottom of the drainage groove, and the drainage groove is lower than the air outlet of the main smoke exhaust pipe.

Preferably, the drain pipe is a U-shaped pipe, and an external water outlet of the U-shaped pipe is lower than an internal water outlet connected to the drain tank.

Preferably, the inner baffle is embodied as a cone baffle.

Preferably, the inner deflector further includes a lower outer surface disposed corresponding to the main smoke exhaust pipe, and the lower outer surface is disposed obliquely upward from the center line to guide the airflow of the main smoke exhaust pipe.

Preferably, a protective net for preventing sundries from entering is arranged on the exhaust port above the chimney hood shell, and the protective net is detachably and fixedly connected with the chimney hood shell.

Preferably, a support rod is arranged between the inner guide plate and the main smoke exhaust pipe, and the support rods are uniformly arranged along the circumferential edge of the main smoke exhaust pipe.

Preferably, a connecting flange for fixing with a chimney is welded on the bottom edge of the main smoke exhaust pipe.

Preferably, the chimney hood body is a drum-shaped cavity structure with a wide middle part and two tapered sides.

Preferably, the mesh number of the protective net is 1-10 meshes.

the utility model provides an exhaust chimney rain insensitive device, including the main exhaust pipe that is used for being connected with the chimney gas vent, main exhaust pipe dustcoat is equipped with chimney hood casing, chimney hood casing's top is equipped with and is used for the carminative gas vent with external intercommunication, main exhaust pipe's top is equipped with the interior guide plate that is used for getting into to chimney hood casing's rivers direction to the external world, the last surface of interior guide plate sets up downwards from the central line to outside slant, the cross-sectional area of the main exhaust pipe of horizontal projection area more than or equal to of interior guide plate, chimney hood casing's bottom is equipped with the drainage device who is used for inside rivers exhaust.

use the utility model provides an exhaust chimney rain insensitive device, the top of main exhaust pipe sets up in the guide plate with the rivers that get into to the external world and lead for it does not get into in the main exhaust pipe, and collects the discharge to rivers through the drainage device who sets up in the bottom of chimney cover casing, has simple structure compactness, simple to operate's advantage, and the device is convenient for produce processing, operation maintenance cost low.

Drawings

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an exhaust chimney rain guard provided in an embodiment of the present invention;

Fig. 2 is a schematic view of an appearance structure of an exhaust chimney rain guard provided in an embodiment of the present invention;

Fig. 3 is a schematic structural view of a drain pipe according to another embodiment of the present invention.

The drawings are numbered as follows:

1-protective screening; 2-chimney hood shell; 3-an inner deflector; 4-a support bar; 5, a main smoke exhaust pipe; 6-a drainage tank; 7-a drain pipe; 8-connecting the flange.

Detailed Description

The embodiment of the utility model discloses exhaust chimney rain insensitive device to the problem that the internal-combustion engine work is influenced to exhaust chimney intaking when solving sleet weather.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, fig. 1 is a schematic structural diagram of an exhaust chimney rain protection device according to an embodiment of the present invention; fig. 2 is a schematic view of an appearance structure of an exhaust chimney rain guard provided in an embodiment of the present invention; fig. 3 is a schematic structural view of a drain pipe according to another embodiment of the present invention.

In a specific embodiment, the utility model provides an exhaust chimney rain insensitive device, including being used for the main exhaust pipe 5 of being connected with the chimney gas vent, main exhaust pipe 5 dustcoat is equipped with chimney hood casing 2, chimney hood casing 2's top is equipped with and is used for the carminative gas vent with external intercommunication, main exhaust pipe 5's top is equipped with and is used for entering into the interior guide plate 3 to the external world to chimney hood casing 2's rivers direction, interior guide plate 3's last surface sets up downwards from the central line to outside slant, interior guide plate 3's horizontal projection area more than or equal to main exhaust pipe 5's cross-sectional area, chimney hood casing 2's bottom is equipped with the drainage device who is used for inside rivers to exhaust.

The main exhaust pipe 5 can be sleeved on a chimney or can be fixed with the chimney through screws and the like, the chimney hood shell 2 is covered on the outer side of the main exhaust pipe 5 and is preferably fixed through welding, an exhaust port is arranged above the chimney hood shell 2, and the area of the exhaust port is smaller than that of the inner guide plate 3 and is preferably smaller than that of the horizontal projection of the inner guide plate 3. It can be understood that a space is arranged between the main exhaust pipe 5 and the inner guide plate 3, so that the airflow enters the chimney hood shell 2 through the main exhaust pipe 5, the inner guide plate 3 is used for guiding the water flow entering the exhaust port of the chimney hood shell 2, and the water flow slides to the drainage device through the upper surface of the inner guide plate 3, wherein the inner guide plate 3 is a structure with a high middle part and a low periphery, and is preferably a cone-shaped guide plate. The horizontal projection area of the inner guide plate 3 is larger than the cross section area of the main smoke exhaust pipe 5, so that water flow entering from the outside is prevented from entering the main smoke exhaust pipe 5. Wherein, drainage device can be specifically for drain pipe 7, drain pipe 7 and external intercommunication to outside exporting chimney hood casing 2 with rivers, drainage device's concrete structure can set up as required.

Use the utility model provides an exhaust chimney rain insensitive device, guide plate 3 leads in order to lead the rivers that the external world got into in the top setting of main exhaust pipe 5 for it does not get into in the main exhaust pipe 5, and collects the discharge through the drainage device who sets up in the bottom of chimney cover casing 2 to rivers, has simple structure compactness, simple to operate's advantage, and the device is convenient for produce processing, operation maintenance cost low.

Specifically, the drainage device is a drainage groove 6 which is arranged around the circumference of the bottom of the chimney hood shell 2, a drainage pipe 7 is arranged at the bottom of the drainage groove 6, and the drainage groove 6 is arranged lower than the air outlet of the main smoke exhaust pipe 5 to prevent accumulated water from entering the main smoke exhaust pipe 5. The drainage channel 6 can be formed by surrounding the thin wall and the outer wall of the main smoke exhaust pipe 5, of course, in other embodiments, an annular water channel can be directly arranged, the drainage channel 6 is welded to the bottom of the chimney hood shell 2, the drainage pipe 7 is arranged at the bottom of the drainage channel 6, the drainage pipes 7 are uniformly arranged along the circumferential direction of the drainage channel 6, the number of the drainage pipes is preferably 4-6, the drainage channels can be arranged according to the circumference of the drainage channel 6, and details are not repeated herein.

Further, the drain pipe 7 is specifically a U-shaped pipe, and the height of the outer water outlet of the U-shaped pipe is lower than the inner water outlet connected with the drain tank 6. The U-shaped pipe can have certain accumulated water at ordinary times, the downward resistance of the air flow can be increased, the air can be discharged upwards only, the remaining pollution to the periphery is avoided, and the height of the U-shaped pipe depends on the installation space and the pressure of the discharged air. Considering that the vertical structure at the tail end of the drainage pipe 7 can have the problem that small sundries can enter and are difficult to clean, the bent structure at the tail end of the drainable pipe 7 is used for preventing the small sundries from entering under the condition that the space allows.

In one embodiment, in order to diffuse the airflow in the main smoke exhaust pipe 5 into the chimney hood housing 2, the inner deflector further includes a lower outer surface disposed corresponding to the main smoke exhaust pipe, wherein the lower outer surface may also be an inner surface of the inner deflector, and the lower outer surface of the inner deflector 3 is disposed obliquely upward from the center line to guide the airflow of the main smoke exhaust pipe 5.

In addition to the above embodiments, a protective net 1 for preventing impurities from entering is disposed on the exhaust port above the chimney hood casing 2, and the protective net 1 is detachably and fixedly connected to the chimney hood casing 2. Therefore, sundries such as leaves and branches are prevented from entering the rainproof device, and meanwhile, the exhaust resistance is reduced. Wherein, the mesh number of the protective net 1 is 1-10 meshes.

Specifically, a support rod 4 is arranged between the inner guide plate 3 and the main smoke exhaust pipe 5, and the support rod 4 is uniformly arranged along the circumferential edge of the main smoke exhaust pipe 5. The support rods 4 are respectively welded with the inner guide plate 3 and the main smoke exhaust pipe 5, and the number of the support rods 4 can be set according to the perimeter of the main smoke exhaust pipe 5. The inner guide plate 3 and the main smoke exhaust pipe 5 are arranged at intervals through the support rod 4.

Further, a connecting flange 8 for fixing with a chimney is welded on the bottom edge of the main smoke exhaust pipe 5. The fixing with the chimney is realized through the connecting flange 8, the structure is simple, the realization is convenient, the structure is only a preferred embodiment, and in other embodiments, the fixing can be set according to actual needs.

Preferably, the chimney hood body is a drum-shaped cavity structure with a wide middle part and two tapered sides. The chimney hood shell 2 is a drum-shaped cavity structure, and the middle drum-shaped part is used for buffering air flow, so that the influence of the inner backflow plate on air flow resistance is reduced. The upper part of the chimney hood shell 2 is narrowed to ensure that the airflow outlet is smaller than the inner guide plate 3, so that rainwater can be prevented from entering the chimney. The lower part of the chimney hood shell 2 is narrowed, the narrowing amplitude is larger than that of the upper part, and the downward resistance of the airflow is larger than the upward resistance.

In a specific embodiment, the rainproof device consists of a protective net 1, a chimney hood shell 2, an inner guide plate 3, a support rod 4, a main smoke exhaust pipe 5, a drainage groove 6, a drainage pipe 7 and a connecting flange 8; since the temperature of the exhaust gas discharged from the vehicle is usually as high as several hundred degrees centigrade, the entire structure of the waterproof cap is made of high temperature resistant stainless steel, carbon steel or other high temperature resistant materials. The inner flow guide plate 3 is connected to the main smoke exhaust pipe 5 through the equally distributed support rods 4, and is positioned on the upper part of the main smoke exhaust pipe 5 and the lower part of the chimney hood shell 2.

internal-combustion engine during operation, other tail gas airflows pass through in the exhaust chimney gets into rain insensitive device, and the air current runs into interior guide plate 3 back and scatters in chimney hood casing 2, and because of interior guide plate 3 slope upwards, the existence of 2 bottom water drainage tank 6 of chimney hood casing and U type drain pipe 7, the decurrent resistance of air current is far greater than upward resistance, therefore tail gas can only discharge towards the top. When a vehicle encounters rainy and snowy weather, rainwater can enter the chimney hood shell 2 from the upper part through the protective net 1, the rainwater can continuously fall under the gravity to collide the inner guide plate 3, the slope of the upper surface of the rainwater downwards slants to enable the rainwater to smoothly flow into the drainage groove 6 at the bottom of the chimney hood shell 2, and the collected rainwater is discharged through the drainage pipe 7.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides an exhaust chimney rain insensitive device, its characterized in that, is including being used for the main exhaust pipe who is connected with the chimney gas vent, main exhaust pipe dustcoat is equipped with chimney hood casing, the top of chimney hood casing is equipped with and is used for the carminative gas vent of external intercommunication, the top of main exhaust pipe is equipped with and is used for entering into to the external world the interior guide plate of the rivers direction of chimney hood casing, the upper surface of interior guide plate sets up downwards to the outside slant from the central line, the horizontal projection area more than or equal to of interior guide plate the cross-sectional area of main exhaust pipe, the bottom of chimney hood casing is equipped with the drainage device who is used for inside rivers to discharge.

2. The exhaust stack rain protection device of claim 1, wherein the drainage device is a drainage groove around a circumference of a bottom of the housing of the stack cover, and a drainage pipe is disposed at a bottom of the drainage groove and is lower than the air outlet of the main smoke exhaust pipe.

3. The exhaust chimney rainproof device according to claim 2, wherein the drain pipe is a U-shaped pipe, and an outer water outlet of the U-shaped pipe is lower than an inner water outlet connected with the drain groove.

4. The exhaust stack rainproof device of claim 3 wherein said inner deflector is specifically a cone deflector.

5. The exhaust stack rainproof apparatus of claim 3 wherein said inner deflector further comprises a lower outer surface disposed in correspondence with said main exhaust pipe, said lower outer surface being disposed obliquely outwardly and upwardly from a centerline for directing the flow of said main exhaust pipe.

6. The exhaust chimney rain protection device according to any one of claims 1 to 5, characterized in that a protective net for preventing entry of sundries is arranged on the exhaust port above the chimney hood housing, and the protective net is detachably and fixedly connected with the chimney hood housing.

7. The exhaust stack rainproof device of claim 6 wherein support rods are disposed between said inner deflector and said main exhaust pipe, said support rods being disposed uniformly along a circumferential edge of said main exhaust pipe.

8. The exhaust stack rain shield of claim 7, wherein a connection flange for securing to a stack is welded to a bottom edge of said main exhaust pipe.

9. The exhaust stack rain shield of claim 6, wherein said stack hood body is a drum-shaped cavity structure with a wide middle and tapered sides.

10. The exhaust stack rainproof device of claim 6 wherein the mesh number of said protective net is between 1-10 mesh.