CN-118062064-B - Equipment cabin of railway vehicle, railway vehicle and control method

CN118062064BCN 118062064 BCN118062064 BCN 118062064BCN-118062064-B

Abstract

The invention discloses an equipment cabin of a railway vehicle, the railway vehicle and a control method, and relates to the technical field of railway vehicles. The equipment cabin of the railway vehicle comprises a shell and equipment arranged in the shell, wherein a first air inlet and outlet is formed in the front end of the shell along the running direction of the vehicle, and a second air inlet and outlet is formed in the rear end of the shell along the running direction of the vehicle. When the equipment cabin of the railway vehicle is used, the front end of the equipment cabin of the railway vehicle is a high-pressure area, the rear end of the equipment cabin of the railway vehicle is a low-pressure area, and as the front end of the shell along the running direction of the vehicle is provided with the first air inlet and outlet, the rear end of the shell along the running direction of the vehicle is provided with the second air inlet and outlet, gas can enter from the first air inlet and outlet, and can flow out from the second air inlet and outlet after flowing through the equipment cabin of the railway vehicle, and the air flow flows from the positive pressure area to the negative pressure area, so that natural convection can be realized, the ventilation requirement of equipment in the equipment cabin of the railway vehicle can be met, and the aerodynamic resistance of the vehicle can be obviously reduced.

Inventors

YAO SHUANBAO
LIU NING
DING SANSAN
CHEN DAWEI
DU JIAN
WANG XIUPING
YAN GUIZHEN

Assignees

中车青岛四方机车车辆股份有限公司

Dates

Publication Date: 20260512
Application Date: 20240105

Claims (9)

1. The equipment cabin of the railway vehicle is characterized by comprising a shell (1) and equipment arranged in the shell (1), wherein a first air inlet and outlet (11) is formed in the front end face of the shell (1) along the running direction of the vehicle, a second air inlet and outlet (12) is formed in the rear end face of the shell (1) along the running direction of the vehicle, and air flow entering the shell (1) from the first air inlet and outlet (11) can be discharged from the second air inlet and outlet (12) when the vehicle runs; The equipment cabin of the railway vehicle further comprises a controller, a vent hole is formed in the bottom of the shell (1), a ventilation device (2) capable of opening and closing is arranged at the vent hole, the ventilation device (2) comprises a plurality of rotatable blades (21), the ventilation device (2) is connected with the controller, and the controller is used for controlling the blades (21) to rotate to an opening state when the equipment cabin of the railway vehicle is in a high-pressure state.
2. -Equipment compartment for a rail vehicle according to claim 1, characterized in that the first air inlet and outlet (11) and the second air inlet and outlet (12) are each provided with a filter grid (13).
3. The equipment compartment of a rail vehicle according to claim 1, characterized in that the first air inlet and outlet (11) and the second air inlet and outlet (12) are each provided with heating wires (14) for heating and a snow protection grid (15).
4. The equipment compartment of a rail vehicle according to claim 1, characterized in that the first air inlet and outlet opening (11) and the second air inlet and outlet opening (12) are arranged symmetrically with respect to a middle section of the housing (1), which is arranged perpendicular to the vehicle running direction.
5. The equipment compartment of the rail vehicle according to claim 1, characterized in that the ventilation device (2) further comprises a power structure connected with the controller, the number of the blades (21) is plural, the blades (21) are equally spaced along the length direction of the ventilation hole, and the power structure is used for driving all the blades (21) to rotate synchronously.
6. The equipment compartment of the rail vehicle of claim 5, further comprising an internal pressure sensor for detecting pressure within the equipment compartment of the rail vehicle, an external pressure sensor for detecting pressure outside the equipment compartment of the rail vehicle; the internal pressure sensor and the external pressure sensor are connected with the controller; When the difference between the internal pressure detected by the internal pressure sensor and the external pressure detected by the external pressure sensor is larger than or equal to a first preset pressure difference, the controller controls the power structure to drive all the blades (21) to rotate to an open state; When the difference between the internal pressure detected by the internal pressure sensor and the external pressure detected by the external pressure sensor is smaller than the first preset pressure difference, the controller controls the power structure to drive all the blades (21) to rotate to a closed state.
7. The equipment pod of the rail vehicle of claim 6, further comprising a speed sensor for detecting a vehicle speed, the speed sensor being coupled to the controller; In the case that the difference between the internal pressure detected by the internal pressure sensor and the external pressure detected by the external pressure sensor is greater than or equal to a first preset pressure difference; when the speed information detected by the speed sensor is greater than a preset minimum speed and less than or equal to a preset maximum speed, the controller controls the power structure to drive the blade (21) to rotate to a first preset angle; When the speed information detected by the speed sensor is greater than a preset maximum speed, the controller controls the power structure to drive the blade (21) to rotate to a second preset angle; When the speed information detected by the speed sensor is smaller than or equal to a preset minimum speed, the controller controls the power structure to drive the blade (21) to rotate to a third preset angle; The second preset angle is larger than the first preset angle, the first preset angle is larger than the third preset angle, and the first preset angle, the second preset angle and the third preset angle are included angles between the position of the blade (21) and the position of the blade (21) in a closed state.
8. A control method applied to the equipment bay of the railway vehicle as claimed in claim 7, the control method comprising: Acquiring the internal pressure detected by the internal pressure sensor and the external pressure detected by the external pressure sensor; Judging whether the difference value between the internal pressure and the external pressure is larger than or equal to a first preset pressure difference value, if so, entering the next step, otherwise, controlling the ventilation device (2) to be in a closed state; Acquiring speed information detected by the speed sensor; Judging whether the speed information is larger than a preset minimum speed and smaller than or equal to a preset maximum speed, if so, controlling the blade (21) to rotate to a first preset angle, and if not, entering the next step; Judging whether the speed information is larger than a preset maximum speed, if so, controlling the blade (21) to rotate to a second preset angle, otherwise, entering the next step; controlling the blade (21) to rotate to a third preset angle; The second preset angle is larger than the first preset angle, the first preset angle is larger than the third preset angle, and the first preset angle, the second preset angle and the third preset angle are included angles between the position of the blade (21) and the position of the blade (21) in a closed state.
9. A rail vehicle comprising a vehicle body and the equipment compartment of the rail vehicle of any one of claims 1 to 7, the equipment compartment of the rail vehicle being provided in a lower portion of the vehicle body.

Description

Equipment cabin of railway vehicle, railway vehicle and control method Technical Field The invention relates to the technical field of railway vehicles, in particular to an equipment cabin of a railway vehicle. The invention also relates to a railway vehicle comprising the equipment compartment of the railway vehicle and a control method applied to the equipment compartment of the railway vehicle. Background At present, in order to reduce the center of gravity of a vehicle and improve the running stability of the vehicle, equipment in a high-speed railway vehicle is generally arranged at the bottom of a vehicle body, and in order to ensure the safety of the equipment under the high-speed running condition and reduce the pneumatic resistance of the whole vehicle, the equipment cabin of the railway vehicle is arranged on the high-speed railway vehicle, and the equipment is sealed inside the equipment cabin of the railway vehicle. In the working state, a traction converter, a traction transformer and a traction motor in an equipment cabin of the railway vehicle are required to be ventilated and cooled, a ventilation opening is required to be designed on the surface of the equipment cabin of the railway vehicle to ensure cooling air of equipment, filtering equipment is required to be installed at the ventilation opening to reduce external environmental pollutants entering the equipment cabin of the railway vehicle, certain tightness of the equipment cabin of the railway vehicle is ensured, the ventilation opening of the equipment cabin of the railway vehicle for the existing high-speed railway vehicle is generally designed on two sides of the equipment cabin of the railway vehicle, and uneven areas exist on dust filtering grids of the ventilation opening, so that pneumatic resistance of the equipment cabin of the railway vehicle is obviously increased. If the number of cabin vents of a rail vehicle is reduced in order to reduce aerodynamic drag, this may result in an inability of the ventilation to meet the equipment cooling requirements. In summary, how to provide an equipment bay of a railway vehicle, which can not only meet the ventilation requirement of equipment in the equipment bay of the railway vehicle, but also reduce aerodynamic drag, is a problem to be solved by those skilled in the art. Disclosure of Invention Therefore, the invention aims to provide the equipment cabin of the railway vehicle, wherein the first air inlet and the second air inlet are respectively arranged at two ends of the shell in the running direction of the vehicle, so that natural convection of gas can be realized, the ventilation requirement of equipment in the equipment cabin of the railway vehicle can be met, and the aerodynamic resistance of the equipment cabin of the railway vehicle can be reduced. Another object of the present invention is to provide a railway vehicle including the above-described equipment room of the railway vehicle and a control method of the equipment room applied to the above-described railway vehicle. In order to achieve the above object, the present invention provides the following technical solutions: The equipment cabin of the railway vehicle comprises a shell and equipment arranged in the shell, wherein a first air inlet and outlet is formed in the front end face of the shell along the running direction of the vehicle, a second air inlet and outlet is formed in the rear end face of the shell along the running direction of the vehicle, and air flow entering the shell from the first air inlet and outlet can be discharged from the second air inlet and outlet when the vehicle runs. Optionally, the first air inlet and the second air inlet are both provided with a filter grid; Optionally, the first air inlet and the second air inlet are both provided with heating wires for heating and a snow protection grid. Optionally, the first air inlet and the second air inlet are symmetrically arranged with respect to a middle section of the housing (1), the middle section being arranged perpendicular to the vehicle running direction. Optionally, the device further comprises a controller, a vent hole is formed in the bottom of the shell, an openable ventilation device is arranged at the vent hole, the ventilation device comprises a plurality of rotatable blades, the ventilation device is connected with the controller, and the controller is used for controlling the blades to rotate to an open state when the equipment cabin of the railway vehicle is in a high-pressure state. Optionally, the ventilation device further includes a power structure connected to the controller, the number of the blades is multiple, and the multiple blades are equally spaced along the length direction of the ventilation hole, and the power structure is used for driving all the blades to rotate synchronously. Optionally, the device further comprises an internal pressure sensor for detecting the pressure in the equipment compartment of the r