JPH0262319A - Operation of high speed transport system - Google Patents

Abstract

PURPOSE:To lessen air resistance by providing an air inflow portion on the start side and an exhauster on the arrival side, whereby an air current is generated in the same direction as the travelling direction in the above system for travelling a vehicle in a pipeline. CONSTITUTION:An air inflow portion 4 of a designated size is provided on the start side of a pipeline 1, and an exhauster 5 such as an exhaust blower or a vacuum pump is provided on the arrival side to form an air current in the travelling direction of a vehicle 3. By this arrangement, the air current is moved with travelling, so that the travelling resistance can be lessened and energy-saving can be promoted.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to an operating method in a high-speed transportation system in which vehicles run at high speed within a conduit.

(b) Prior art In recent years, high-speed transportation has been introduced, in which materials or people are transported by means of moving bodies (vehicles) that use long-distance pipelines as guideways and run at high speed mainly using their own power or external power such as linear motors. systems have been researched and developed.

A typical example of a conventional high-speed transportation system is shown in FIG. tube#
The departure side and arrival side of T1 are sealed with shutter 2, and vehicle 3
run inside the pipeline. In this way, in the system in which the vehicle 3 runs within the conduit 1 that is closed and closed from the outside,
As shown in Figure 5, the pressure on the departure side becomes extremely low.
The pressure on the arrival side is relatively high. For this reason, even though strict airtightness is required at the departure point, the pressure inside the pipe near the arrival side is quite high, and the running resistance of vehicles traveling there does not become small, so the total running resistance is It won't drop that much.

(c) Problems to be Solved by the Invention The problem to be solved by the present invention is to obtain an operating method that minimizes the air resistance of pipelines in a high-speed transportation system.

(d) Means for Solving the Problems The operating method of the present invention provides an air inflow section on the departure side of the conduit in a high-speed transportation system in which vehicles run at high speed in the conduit, and The above-mentioned problem is solved by providing an exhaust device and generating an airflow in the pipe in the same direction as the vehicle travel direction.

Furthermore, in the operating method of the present invention, the above problem can also be solved by providing the pipeline with an outbound route and a return route, and by communicating the outbound route and the return route through a plurality of side routes.

Furthermore, in the driving method of the present invention, the conduit is provided with an outbound route and a return route, and a first side route is provided on the departure side of the outbound route and the arrival side of the return route, and the first side route is provided on the arrival side of the outbound route and the departure route of the return route. The above problem can also be solved by providing a second side passage on both sides and providing an exhaust device on each of the first and second side passages.

(e) Examples The operating method of the present invention will be explained with reference to the drawings.

As shown in FIG. 1, an air inflow section 4 of a predetermined size is provided on the departure side of the conduit 1, and an exhaust device 5 such as an exhaust floor or a vacuum pump is provided on the arrival side. The airflow is formed in the same direction as when running in step 3 to reduce running resistance and save energy.The same effect can also be obtained by replacing the seal on the departure side with the air inflow part 4. can.

Here, the sum F1 of the running resistance of each vehicle in Fig. 4 according to the conventional method
and the similar F2 in FIG. 1 according to the method of the present invention. When the speed V of the vehicle is set to 500+n/H, and the speed U of the airflow flowing with the vehicle in FIG. 1 is set to 170 kn/H, it is expressed by the following equation.

F = a-v2 = 250000a (a is a constant)
F2=a (v-u) 2=108900a =0.
Since we want 44F, F2 will be 172 or less of Fl.

In a typical system, two or more lines of reciprocating pipes are provided. Therefore, as shown in FIG. 2, side roads 6a and 6b are provided to connect the departure side of the outbound route 1a and the arrival side of the return route 1b, and the arrival side of the outbound route 1a and the departure side of the return route #tlb, respectively. This causes an airflow to flow in the same direction as the other two. This airflow consists of the outgoing path 1a - side path 6b - return path 1b - side path 6a.
- It becomes a circular flow on the outward path 1b. This airflow reduces running resistance and saves energy.

In this example, the same effect as described above can be obtained without an exhaust device by simply connecting the adjacent forward and return sides with a short side path.

Furthermore, in FIG. 2, by providing side paths at a pitch shorter than the distance between vehicles, a large amount of accompanying airflow can be formed, and as a result, the running resistance of the vehicle can be further reduced.

Furthermore, as shown in FIG. 3, air bags rIt5 are provided in each of the side roads 6a and 6b to increase the speed of the airflow in the same direction as the vehicle, thereby reducing the difference between the vehicle speed and the airflow speed, Furthermore, energy-saving operation can be achieved by reducing running resistance.

(f) Effects According to the present invention, airflow is generated in the pipe by using the movement of vehicles in the pipe, so the relative velocity between the air in the pipe and the vehicle decreases, and changes in the pressure in the pipe are also reduced. Since it is averaged as shown in FIG. 6, the total running resistance of the vehicle can be reduced without increasing the degree of vacuum inside the tube.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the operating method of the present invention. Figures 2 and 3
The figure is an explanatory diagram of another operating method of the present invention. FIG. 4 is an explanatory diagram of the conventional operating method, and FIG. 5 is a graph showing pressure fluctuations in the pipe line due to the conventional operating method. FIG. 6 is a graph showing pressure fluctuations in the pipeline according to the operating method of the present invention. 1: Pipe 2: Shutter 3: Vehicle 4: Air inlet

Claims (1)

[Claims] 1. In a high-speed transportation system in which vehicles run at high speed within a conduit, an air inflow section is provided on the departure side of the conduit, an exhaust device is provided on the arrival side of the conduit, and A method of operating a high-speed transportation system characterized by generating airflow in the same direction as the vehicle travel direction. 2. The method according to claim 1, wherein the conduit is provided with an outgoing path and an incoming path, and the outgoing path and the incoming path are communicated by a plurality of side paths. 3. The conduit is provided with an outbound route and a return route, a first side route is provided on the departure side of the outbound route and an arrival side of the return route, and a second side route is provided on the arrival side of the outbound route and the departure side of the return route. 2. The method according to claim 1, further comprising providing a blower device in each of the first and second side passages.