阅读说明：本技术 一种自流式道床洒水系统 (Self-flowing type ballast bed sprinkling system ) 是由 刘兵 袁亮 杨鸣 郦高亮 刘灿 龙建国 李冬 彭燎 张显锋 吴鸿飞 杨诗卫 张 于 2020-06-30 设计创作，主要内容包括：本发明公开了一种自流式道床洒水系统,包括车体呈框架式结构且不设地板的铁路平车,以及装配在所述铁路平车上并配备有洒水装置的罐式集装箱。所述洒水装置包括喷洒装置和用于将所述喷洒装置连接至所述罐式集装箱的管道连接结构,所述管道连接结构贯穿于所述车体上的空隙并将所述喷洒装置吊挂于所述罐式集装箱下方。所述喷洒装置包括近程喷洒装置和远程喷洒装置,且此二者分别喷出的射流在受喷面上具有交叉的覆盖范围。本发明能够有效解决现有洒水作业过程中运水量小等问题,而且采用近程和远程两种喷头,使得洒水流量大且均匀,节约能源,可显著提升道床洒水效率。(The invention discloses a self-flowing type ballast bed sprinkling system which comprises a railway flat car and a tank container, wherein the railway flat car is in a frame structure, a floor is not arranged on the railway flat car, and the tank container is assembled on the railway flat car and is provided with a sprinkling device. The sprinkler includes sprinkler and a pipe connection structure for connecting the sprinkler to the tank container, the pipe connection structure runs through a gap on the vehicle body and hangs the sprinkler under the tank container. The spraying device comprises a short-distance spraying device and a long-distance spraying device, and the spraying streams sprayed by the short-distance spraying device and the long-distance spraying device respectively have crossed coverage areas on the sprayed surface. The invention can effectively solve the problems of small water delivery amount and the like in the existing watering operation process, and adopts two types of short-range and long-range spray heads, so that the watering flow is large and uniform, the energy is saved, and the watering efficiency of the ballast bed can be obviously improved.)

1. The utility model provides a gravity flow railway roadbed sprinkling system which characterized in that:

the railway flat car comprises a railway flat car body which is in a frame type structure and is not provided with a floor, and a tank container which is assembled on the railway flat car body and is provided with a water spraying device;

the sprinkler comprises a sprinkler and a pipeline connecting structure for connecting the sprinkler to the tank container, wherein the pipeline connecting structure penetrates through a gap on the vehicle body and hangs the sprinkler under the tank container;

the spraying device comprises a short-range spraying device and a long-range spraying device which are provided with fan-shaped flat nozzle nozzles, and the sprayed jet flows respectively have crossed coverage ranges on the sprayed surface.

2. The gravity flow ballast bed sprinkler system according to claim 1, wherein: the device also comprises a controller for controlling the sprinkling flow and a power supply device electrically connected with the controller, wherein the controller is electrically connected with a flow meter and an electric valve which are sequentially connected on the pipeline connecting structure.

3. The gravity flow ballast bed sprinkler system according to claim 2, wherein: the tank container comprises a container frame and a tank body horizontally supported in the container frame, and the flowmeter and the electric valve are arranged in a gap between the container frame and the tank body.

4. The gravity flow ballast bed sprinkler system according to claim 3, wherein: the assembly of the container frame comprises a container corner piece and section steel, and the container corner piece and the section steel are fixed on the railway flat car through a locking device on the railway flat car.

5. The gravity flow ballast bed sprinkler system according to claim 3, wherein: a water inlet pipe is introduced into the top of the tank body, a filter is arranged on the water inlet pipe, and an inner buckle type fire fighting connector is connected to the water inlet end of the water inlet pipe; the tank body is connected with a liquid level meter, the top of the tank body is provided with a manhole device and a breathing safety valve, the bottom of the tank body is provided with a drain pipe with a stop valve, and the outer side of the tank body is provided with a ladder stand.

6. The gravity flow ballast bed sprinkler system according to any one of claims 1-5, wherein: the short-range spraying device and the long-range spraying device respectively comprise a three-way pipe, two ends of the three-way pipe are respectively connected with the fan-shaped flat nozzle, and the other end of the three-way pipe is used as a water inlet end and connected with the pipeline connecting structure.

7. The gravity flow ballast bed sprinkler system according to claim 6, wherein: the jet flow sprayed by the short-distance spraying device and the jet flow sprayed by the long-distance spraying device have continuous coverage on the sprayed surface.

8. The gravity flow ballast bed sprinkler system according to claim 6, wherein: the drift diameter area of the water inlet end of the three-way pipe is not less than the sum of the drift diameter areas of the other two ends of the three-way pipe.

9. The gravity flow ballast bed sprinkler system according to claim 6, wherein: the jet flow sprayed by the short-distance spraying device and the jet flow sprayed by the long-distance spraying device have continuous coverage on the sprayed surface.

10. The gravity flow ballast bed sprinkler system according to claim 6, wherein: the diffusion angle of the jet flow of the fan-shaped flat nozzle in the fan surface is 70-120 degrees, and the diffusion angle vertical to the fan surface is 10-30 degrees.

Technical Field

The invention relates to the technical field of railway engineering, in particular to a self-flowing type ballast bed watering system.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The railway is the main artery of the transportation system in China. In order to ensure the smooth railway safety, the maintenance work of railway lines needs to be carried out regularly. Railway maintenance mainly comprises two aspects of railway line maintenance and railway building maintenance. Maintenance of railway lines is the maintenance and repair work performed on roadbeds, tracks, and the like; railway building maintenance is the maintenance and repair work performed on railroad bridges, tunnels, house buildings, and the like. Can raise serious dust when clearing the railway ballast of sieve railway roadbed in the tunnel, shelter from the sight, worsen the operation environment, need to be to the railway roadbed watering before the operation of clearing the sieve to dust when reducing, restraining the operation of clearing the sieve improves the operation environment, and the guarantee operation of clearing the sieve is normally gone on.

In addition, the watering work time should be as short as possible in order not to affect the normal operation of the line. The line maintenance workers can adopt a simple water sprinkling device consisting of a flat car and a water tank. However, the method has the defects of small water transportation amount, multiple water addition, long operation time, inconvenience in water sprinkling adjustment and the like; moreover, the water tank has smooth appearance, the loading and reinforcing difficulty on the vehicle is high, and potential safety hazards are caused when the reinforcing is poor.

Disclosure of Invention

Aiming at the existing problems, the invention provides the gravity flow type ballast bed watering system which adopts the railway flat car as the carrying platform and the walking unit to store and transport water in a containerized manner and can effectively solve the problems of small water transport amount and the like in the existing watering operation process. Moreover, the self-flowing type ballast bed sprinkling system has the characteristics of flexible application, convenient maintenance and the like by modularly arranging the sprinkling device.

The invention discloses a self-flowing type ballast bed watering system, which is characterized in that:

the railway flat car comprises a railway flat car body which is in a frame type structure and is not provided with a floor, and a tank container which is assembled on the railway flat car body and is provided with a water spraying device;

the sprinkler comprises a sprinkler and a pipeline connecting structure for connecting the sprinkler to the tank container, wherein the pipeline connecting structure penetrates through a gap on the vehicle body and hangs the sprinkler under the tank container;

the spraying device comprises a short-range spraying device and a long-range spraying device which are provided with fan-shaped flat nozzle nozzles, and the sprayed jet flows respectively have crossed coverage ranges on the sprayed surface.

Furthermore, the artesian ballast bed watering system also comprises a controller for controlling the watering flow and a power supply device electrically connected with the controller, wherein the controller is electrically connected with a flow meter and an electric valve which are sequentially connected on the pipeline connecting structure.

Furthermore, the tank container comprises a container frame and a tank body horizontally supported in the container frame, and the flowmeter and the electric valve are arranged in a gap between the container frame and the tank body.

Furthermore, the assembly of the container frame comprises a box corner piece and section steel, and the box corner piece and the section steel are fixed on the railway flat car through a locking device on the railway flat car.

Furthermore, a water inlet pipe is introduced into the top of the tank body, a filter is arranged on the water inlet pipe, and an inner buckle type fire-fighting interface is connected to the water inlet end of the water inlet pipe; the tank body is connected with a liquid level meter, the top of the tank body is provided with a manhole device and a breathing safety valve, the bottom of the tank body is provided with a drain pipe with a stop valve, and the outer side of the tank body is provided with a ladder stand.

Furthermore, at least one set of short-range spraying device is arranged, and at least two sets of long-range spraying devices are arranged;

when the short-range spraying device is provided with one set of long-range spraying device, and the two sets of long-range spraying devices are arranged, the jet flow sprayed by the two sets of long-range spraying devices is positioned at two sides of the jet flow sprayed by the short-range spraying device;

when the short-range spraying devices are provided with two sets and the two sets of the long-range spraying devices are respectively and correspondingly provided, the jet flows sprayed by the two sets of the long-range spraying devices are positioned at the outer sides of the jet flows sprayed by the corresponding short-range spraying devices, and the jet flows sprayed by the two sets of the short-range spraying devices have crossed coverage ranges on the sprayed surfaces.

Furthermore, the short-range spraying device and the long-range spraying device respectively comprise a three-way pipe, two ends of the three-way pipe are respectively connected with the fan-shaped flat nozzle, and the other end of the three-way pipe is used as a water inlet end and connected with the pipeline connecting structure.

Further, the jet angle of the jet flow sprayed by the short-range spraying device is 70-90 degrees, and the jet angle of the jet flow sprayed by the short-range spraying device is 30-70 degrees.

Furthermore, the sector of the fan-shaped flat nozzle of the short-distance spraying device is parallel or nearly parallel to the longitudinal central axis of the railway flat car, and the sector of the fan-shaped flat nozzle of the long-distance spraying device is perpendicular or nearly perpendicular to the longitudinal central axis of the railway flat car.

Further, the jet flows sprayed by the short-distance spraying device and the long-distance spraying device are provided with continuous coverage areas on the sprayed surfaces.

Furthermore, the drift diameter area of the water inlet end of the three-way pipe is not less than the sum of the drift diameter areas of the other two ends of the three-way pipe.

Further, the jet flows sprayed by the short-distance spraying device and the long-distance spraying device are provided with continuous coverage areas on the sprayed surfaces.

Further, the jet stream sprayed by the short-range spraying device has a coverage range at a near position on the transverse section of the track bed, and the jet stream sprayed by the long-range spraying device has a coverage range at a far position on the transverse section of the track bed. The terms "proximal" and "distal" are relative, and are relative to the position of the longitudinal central axis of the track bed through a transverse cross-section of the track bed.

Furthermore, the diffusion angle of the jet flow of the fan-shaped flat nozzle in the fan surface is 70-120 degrees, and the diffusion angle vertical to the fan surface is 10-30 degrees.

By comprehensively adopting the technical scheme, the invention can obtain the following beneficial effects:

1. the railway flat car is used as a carrying platform and a walking unit, and the car has mature technology, higher running speed and large bearing capacity.

2. The water carrying capacity is large by adopting a containerization water storage and transportation technology; for example, a sprinkler system may provide about 22m when carrying 120 ft tank container³Water, when carrying 3 20ft tank containers, can provide about 66m³And (3) water.

3. The electric drive flow control device is adopted to adjust the sprinkling flow, the automation degree is high, and the flow control is accurate and convenient.

4. Every jar body is equipped with four sets of gravity flow watering devices, adopts two kinds of shower nozzles of short range and long-range, and the watering flow is big and even, and the energy saving can show promotion ballast bed watering efficiency.

5. The water spraying device is arranged in the gap of the railway flat car body, does not influence the connection and hanging performance of the railway flat car, can be hung at any position in a train in a weaving mode, and is convenient to use.

6. The sprinkling system is formed by combining a mature railway flat car and a tank container, and has the advantages of high standardization and modularization degree, flexible application and convenient maintenance.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of the overall configuration of a gravity flow ballast bed sprinkler system in some embodiments;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic cross-sectional view taken at B-B of FIG. 1;

FIG. 4 is a schematic piping diagram of a gravity flow ballast watering system in some embodiments;

FIG. 5 is a schematic view of a flow control of a gravity flow ballast watering system in some embodiments;

FIG. 6 is a schematic diagram of the overall configuration of a gravity flow ballast watering system in some embodiments in which a single railway flatcar carries a tank container;

figure 7 is a schematic diagram of the overall structure of a gravity flow ballast watering system in some embodiments in which a single railway flatcar carries three tank containers.

Description of reference numerals:

1-railway flat car, 2-tank container, 21-tank, 211-fire-fighting interface, 212-water inlet pipe, 213-filter, 214-manhole device, 215-safety valve, 216-ladder, 217-stop valve, 218-drain pipe, 219-liquid level meter, 22-container rack, 221-locking device, 31-storage battery, 32-controller, 33-water supply pipe I, 34-flowmeter sensor, 35-water supply pipe II, 36-electric ball valve, 37-water supply pipe III, 371-tee pipe, 372-water supply pipe IV 372, 38-fan-shaped flat nozzle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the drawings of the present invention, it should be understood that different technical features which are not mutually substituted are shown in the same drawing only for the convenience of simplifying the drawing description and reducing the number of drawings, and the embodiment described with reference to the drawings does not indicate or imply that all the technical features in the drawings are included, and thus the present invention is not to be construed as being limited thereto.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-7, the invention relates to a self-flowing ballast bed watering system, which comprises a railway flat car 1, a tank container 2 and a watering device. The body of the railway flatcar 1 is in a frame structure and is not provided with a floor. The longitudinal direction of the railway flat car 1 is defined as a longitudinal direction, and the width direction of the railway flat car is defined as a lateral direction. The tank container 2 is fitted on the railway flatcar 1 and is equipped with a sprinkler. The tank container 2 is adopted for storing and transporting water, a plurality of tank containers 2 can be flexibly selected to be carried on the railway flat car 1 according to the water spraying amount, and the tank container has the advantage of good expansibility. For example, one or two or three tank containers 2 are loaded simultaneously on one railway flatcar 1. The sprinkling system takes the railway flat car 1 as a carrying platform and a walking unit, in some embodiments, the railway container flat car is adopted, the structure is few, the floor is not arranged, the dead weight is light, and under the same axle weight, the bearing capacity of the car is large, so that more water can be stored and transported.

In some embodiments, the tank container 2 includes a container frame 22 and a tank body 21, and the tank body 21 is horizontally supported in the container frame 22 and has a cylindrical shape. In at least one embodiment, the assembly of container racks 22, including the bin corner fittings and the section steel, is secured to the railway container flat car by a locking device 221 on the railway flat car 1. The railway container flatcar has robust container locks that can safely and reliably carry the tank container 2.

In some embodiments, the tank body 21 of the tank container 2 has an inlet pipe 212 introduced into the top thereof and a drain pipe 218 provided at the bottom thereof. The tank body 21 is loaded and unloaded in an upper loading and unloading mode, and the water inlet pipe 212 and the water outlet pipe 218 adopt different pipelines. The water inlet end of the water inlet pipe 212 is connected with an inner buckle type fire-fighting connector 211 which is convenient for connecting a fire hose and injecting water into the tank body 21 from a fire hydrant near a railway. The water inlet pipe 212 is provided with a filter 213 for filtering impurities in water to avoid blocking the spraying device. The drain pipe 218 is used for discharging the sewage in the tank and is provided with a stop valve 217. In at least one embodiment, the side of the tank 21 near the rear end is provided with a ladder 216 to facilitate a person climbing to the top of the tank 21 for operation. In at least one embodiment, a level gauge 219 is connected to the tank 21 for observing the water level within the tank. In at least one embodiment, the top of the tank 21 is provided with a manhole device 214, not less than 500mm in diameter, for personnel to enter and exit the tank 21. In at least one embodiment, a breathing safety valve 215 is further disposed on the top of the tank 21 for supplying or exhausting air to balance the pressure in the tank and prevent the tank 21 from being damaged when the water level in the tank changes.

In some embodiments, the sprinkler includes a pipe connection structure and a sprinkler. The pipe connection structure is used to connect the sprinkler to the tank container 2, which penetrates a gap on the vehicle body and hangs the sprinkler under the tank container 2. The position of the sprinkling device is lower, potential energy generated by height difference between the liquid level in the tank container 2 and the sprinkling device can be utilized, and larger water outlet pressure is formed at the sprinkling device, so that the self-flowing type spraying sprinkling is realized under the condition of not using external power. In at least one embodiment, a flow meter and an electric valve are connected to the pipe connection structure in sequence, and the flow meter and the electric valve are arranged in a gap between the container frame 22 and the tank 21. The arrangement of the sprinkler in the gap between the container frame 22 and the vehicle body frame makes the sprinkler system more compact.

In some embodiments, the spray devices include a short range spray device and a long range spray device. The spray angle of the jet ejected by the remote spray device is smaller than the spray angle of the jet ejected by the close spray device. The jet flow sprayed by the short-range spraying device has a spraying angle of 70-90 degrees and is responsible for spraying water to the middle part of the ballast bed. The jet angle of the jet flow sprayed by the short-range spraying device is 30-70 degrees, and the short-range spraying device is responsible for spraying water to the edge of the ballast bed. The jet angle is defined as the angle between the jet axis and the surface to be jetted.

In some embodiments, the ends of the short-distance spraying device and the long-distance spraying device are respectively provided with two fan-shaped flat nozzle heads, and the sprayed jet flows respectively have crossed coverage areas on the sprayed surface. In at least one embodiment, the sector of the fan-shaped flat nozzle of the short-range spraying device is parallel or approximately parallel to the longitudinal central axis of the railway flat car, and the sector of the fan-shaped flat nozzle of the long-range spraying device is perpendicular or approximately perpendicular to the longitudinal central axis of the railway flat car.

In some embodiments, the spread angle of the jet flow of the fan-shaped flat nozzle in the fan surface is 70-120 degrees, and the spread angle vertical to the fan surface is 10-30 degrees. The diffusion angle is defined as the angle between the two boundary lines of the jet on a section perpendicular to the jet axis. Because the nozzle is of a fan-shaped flat opening structure, the jet flow is not strictly conical, and therefore a diffusion angle in the fan surface and a diffusion angle vertical to the fan surface exist.

At least one set of short-range spraying device is arranged, and at least two sets of long-range spraying devices are arranged. In some embodiments, the short-range spraying device is provided with one set, and two sets of long-range spraying devices are provided, and the jet flow sprayed by the two sets of long-range spraying devices is positioned on two sides of the jet flow sprayed by the short-range spraying device. In other embodiments, the short-range spraying devices are provided with two sets, and the two sets of long-range spraying devices are correspondingly provided respectively, the jet flows sprayed by the two sets of long-range spraying devices are positioned at the outer sides of the jet flows sprayed by the corresponding short-range spraying devices, and the jet flows sprayed by the two sets of short-range spraying devices also have crossed coverage areas on the sprayed surfaces, so that the short-range spraying devices and the long-range spraying devices have continuous coverage areas on the sprayed surfaces.

In some embodiments, each of the short and long-range sprinklers comprises a tee having two ends each connected to a fan-shaped flat nozzle 38, the other end of the tee being connected as a water inlet end to the pipe connection. In at least one embodiment, the sprays emitted by the short and long range sprays each have a continuous coverage over the sprayed surface. In at least one embodiment, the drift diameter area of the water inlet end of the three-way pipe is not less than the sum of the drift diameter areas of the other two ends of the three-way pipe, so that water flow enters from the water inlet end of the three-way pipe and is not attenuated after being divided into the other two ends of the three-way pipe.

In some embodiments, the gravity flow ballast watering system further comprises a controller 32 and a power supply device. The controller 32 is used for controlling the sprinkling flow rate, and the controller 32 is electrically connected with a power supply device which is a movable power supply such as a storage battery 31. The controller 32 is in electrical communication with the flow meter and the electrically operated valve to control the flow of the sprinkler.

At least one exemplary embodiment is now provided in connection with the drawings, a detailed description of which is provided in the drawings not intended to limit the scope of the claimed invention, but is merely representative of exemplary embodiments provided in the invention.

Exemplary embodiment 1

Referring to fig. 1-7, the exemplary embodiment specifically relates to a gravity flow ballast bed watering system, including a railway container flatcar, a tank container 2, a watering device, and a controller 32. A railway container flat car with a frame-type structure as a carrying platform and a walking unit is used, and two tank containers 2 are carried on the railway container flat car. The sprinkler comprises a pipeline connecting structure and a sprinkler. The pipeline connecting structure comprises a straight pipe or an elbow pipe, and the pipes are connected through fasteners such as flanges, bolts, nuts and the like. The pipeline connecting structure passes through a gap on the railway container flat car body, and the spraying device is hung below the tank container 2.

The tank container 2 is placed on a railway container flat car and includes a container frame 22 and a tank body 21. The tank body 21 is cylindrical and horizontally supported in a rectangular container frame 22 formed by welding standard container corner fittings and section steel. The tank 21 is equipped with a manhole device 214, a breathing safety valve 215, a level gauge 219 and a ladder 216. An inlet pipe 212 is provided at each of opposite ends of the two tanks 21 (i.e., the front end of one tank 21 and the rear end of the other tank 21), and the inlet pipe 212 is also provided with a filter 213. Drain pipes 218 are provided at the bottoms of the two tanks 21, respectively, and are provided with shut-off valves 217. Each tank body 21 is symmetrically provided with two sets of sprinkling devices along two sides of the rail.

The pipeline connecting structure of the sprinkler comprises a water supply pipe I33, a water supply pipe II35 and a water supply pipe III 37 which are connected through fasteners such as flanges, bolts, nuts and the like in sequence. The water supply pipe I33 is led out from the bottom of the tank body 21, a flange type flowmeter sensor 34 is connected between the water supply pipe I33 and the water supply pipe II35, and a flange type electric valve 36 is connected between the water supply pipe II35 and the water supply pipe III 37. The sprinkler of sprinkler includes tee bend 371, and tee bend 371's the end of intaking is connected with delivery pipe III 37 and is formed the shape of falling T, and one section delivery pipe IV 372 is connected respectively to both ends in addition, and the other end of two delivery pipes IV 372 is connected with the shower nozzle respectively. The horizontally distributed water supply pipe I33, the flowmeter sensor 34, the water supply pipe II35 and the electric ball valve 36 are arranged on the side surface of the tank body 21 and at the gap between the tank body 21 and the container frame 22, the water supply pipe III 37 is L-shaped, the lower end of the water supply pipe III is vertical, namely, the lower end of the water supply pipe III downwards penetrates through the gap of the vehicle body, and the water supply pipe III is used for being connected with the water inlet end of the tee pipe 371. The water supply pipe III 37 has a diameter area twice or more the diameter area of the water supply pipe IV 372, so that the pressure does not decrease after the water in the water supply pipe III 37 is distributed to the two water supply pipes IV 372. Moreover, the two spray heads are separately arranged along the cross section direction of the ballast bed by utilizing the tee pipe 371 and the water supply pipe IV 372, so that water flow can be dispersed, and uniform sprinkling is realized.

In the two sets of spraying devices on the single side, one set of spraying device is a short-range spraying device, and the other set of spraying device is a long-range spraying device, so that water flow can cover the cross section of the whole ballast bed from multiple angles. In addition, by increasing the number of the sprinkling devices, the total sprinkling flow of the sprinkling system can be doubled, large-flow sprinkling is realized by using a pipeline with a smaller drift diameter, the sprinkling operation time is obviously shortened, and the phenomenon that the ballast bed is damaged due to overlarge water outlet quantity of the sprinkler is avoided.

In the transverse section of the track bed, the fan-shaped flat nozzle 38 of the short-range spraying device is responsible for spraying water to the middle of the track bed, and the fan-shaped flat nozzle 38 of the long-range spraying device has a smaller spraying angle and is responsible for spraying water to the edge of the track bed. The position of the fan-shaped flat nozzle 38 is obviously lower than the tank body 21, a large height drop exists between the liquid level of the tank body 21 and the nozzle, the potential energy of water is utilized to enable the nozzle to have large water outlet pressure, and the water jet with a narrow jet relative to a water supply pipe can also narrow the water flow to form jet water flow with a sufficient jet range, so that the self-flowing type water sprinkling is realized, and the energy is saved.

This watering system adopts electric drive, is controlled by controller 32 and adjusts watering flow, and specific control adjustment process is: the sprinkling flow is preset by the controller 32, the actual detected flow is converted into an electric signal by the flowmeter sensor 34 and transmitted to the controller 32 through the signal line 321, the controller 32 compares the difference value between the actual flow and the preset flow, and then sends out a corresponding control signal to drive the electric ball valve 36, so that the sprinkling flow is accurate and adjustable. The storage battery 31 is arranged on the side surface of the tank body 21 and at the gap between the tank body 21 and the container frame 22, and supplies power to the flow meter sensor 34, the electric ball valve 36 and the controller 32 through a power line 311, so that the sprinkling flow can be continuously controlled during the running process of the vehicle.

The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.