JPS587100A - Controller for ventilation of tunnel for automobile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ventilation control device for a motor vehicle tunnel.

In automobile tunnels, when the length of the tunnel or the number of vehicles passing through the tunnel exceeds a certain level, a ventilator is installed for the safety and comfortable driving of the driver, or for the purpose of environmental protection for tunnel equipment maintenance personnel. Ventilation control equipment will be provided for economical operation.

There are various ventilation methods, but in recent years the longitudinal ventilation method has been widely used because it requires less civil engineering construction costs and requires the least amount of electricity for ventilation. In the longitudinal flow type, ventilation air flows in the direction that the tunnel extends, and contamination is theoretically accumulated in the direction of movement of the ventilation air, so the longer the tunnel, the more frequently it is necessary to dilute or remove the accumulated contaminants. Therefore, dust collectors and vertical shaft fans and exhaust fans are installed in the middle of the tunnel.

An example of such a tunnel is shown in FIG.

In the figure, / is the tunnel roadway, Ko is the vehicle in front, and 7
1 to J (l is a jet fan for boosting the pressure to obtain the necessary ventilation air volume in the tunnel, 4Ia, <zb is a dust collector to remove soot and smoke emitted by cars, and ! is a jet fan for increasing the pressure in order to obtain the necessary ventilation air volume in the tunnel, The vertical shaft air supply and exhaust duct for replacement, B indicates an exhaust fan, and 7 indicates a blower. Dust collectors pa and +b are placed in the dust collection chambers Q2, , and ZJ, respectively. 7 is located in ventilation center J. Jet fan, dust collector,
Exhaust fans and blowers are collectively referred to as ventilators.

When the pollution emission distribution of vehicles is uniform, the pollution distribution in the tunnel in a steady state is as shown in FIG. In Figure 2,
The solid line shows the soot and smoke pollution distribution, and the broken line shows the carbon monoxide pollution distribution.

In addition to the vertical flow type like the above, there are cross flow type and semi-cross flow type in the replacement method, but conventional ventilation control devices are configured based on the same idea regarding these IJk ventilation methods. was used. Namely 1. Most of the parts of the ventilation control system are placed in the dust collection room n, 23 and the ventilation station ν, respectively, and are used to control the dust collection room 1e8' or the dust collector, blower/exhaust fan in the ventilation area, and other nearby equipment. Ventilators (i.e., jet fan 30.J(1) near the dust collection room J) and jet fans 30. Machine μ
Fig. 3 shows a control device provided for jet fans ja and jet fans ja and jb. In the same figure.

// is ventilation manual operation panel, /2 is ventilation automatic control device, /
3 is a ventilation airflow rate determining device, /44 is an automatic/manual switching device,
A. Switching between manually or automatically determining the air volume; II. Used. /3L, /313 and /41 are electric motor panels that operate according to commands from the air volume determining device /3, respectively, and are operated by jet fan 73&, 313 and dust collector ≠ a.
Drive (2 is used. /7 is carbon monoxide (00)
The sensor, smoke transmittance (V) sensor, and wind speed and direction sensor are shown. 7g is a processing device that converts the output signal of the sensor group/7 into a signal suitable for giving to the automatic control device/2.

For the dust collector IILb and the jet fans jo and jd, as well as for the exhaust fan t and the blower 7, separate control systems (two sets similar to those shown in FIG. 3) are formed.

If the contamination state of the tunnel becomes worse than the standard value, it is detected by the 7/S 17, processed by the processing device 11, and the automatic control device 12 determines the air volume pattern according to the degree of deviation or change from the standard value. Then, a command is given to the air volume determining device 13. The air volume determination device 13 determines the air volume pattern based on the number of ventilators and the combination of rotation speeds, and issues commands for starting, stopping, and speed fluctuations of the ventilators to each ventilator based on commands from the automatic control device 12. Provided to electric machine panels /3L, /3b and /AIL. This allows ventilation! &, Jb, and Sana are operated as specified.However, with such independent feed back control for each group of ventilators, the overall efficiency of the ventilation system is not good, and it is difficult to keep the concentration of contamination below the standard. required a large amount of power.

An object of the present invention is to provide a ventilation control device that can improve the efficiency of a ventilation system.

The control device of the present invention can overcome the effects of traffic and natural wind to produce a predetermined air volume, and can control all air blowers in conjunction with each other.

Reference figure shows one embodiment of the present invention.

In the figure, J indicates a tunnel equipment management center that is generally provided near the entrance of a tunnel.

Inside the tunnel equipment management center, there is a ventilation control host combinator (CPU (medium processing unit) and its peripheral equipment) SOt, man-machine equipment! 202 and a hitter weight master station λ03 are installed.

Inside the dust collection room: 12, ] and underground ventilation station J,
Each data way remote stage tan, 2 pieces/.

CoJ/ and ill/ are installed. To simplify the drawing, only one ventilator is shown for one dust collection room or ventilation station. Dust collection Nemuro n.

Electric motor panels J, 12, and 23 of the ventilation machines are installed in the sword and underground ventilation area 211, respectively.
Operation command is given to JJ, Ko33.1II3.

In the vicinity of the Nemuro dust collection facility and the underground ventilation facility J, there are sensors for measuring permeability (V), -carbon oxide (00), traffic volume, wind direction and speed, etc.).

Core 1. ．． These signals are sent to signal processing boards λ, 31. given to ko≠j.

The data way master stage shoulder /λo3 and the remote stage shoulder /λo1.238μ/ are the data transmission line Δ
are connected to each other by.

A traffic flow detector (not shown) and a transmitting terminal are installed at a position before the tunnel entrance, for example, at an interchange, and the transmitting terminal λ4/ and the receiving terminal within the management center I are provided with a traffic flow detector (not shown). A signal indicating the traffic volume is transmitted. .

The remote stage II/cocoheco38cog/ each independently has the function of performing the same control as the device shown in FIG. Also, remote stage adventure/, 2Kohachi-! 1.211/ and the host combination octopus 0/ have the following control functions in cooperation. Figure 5 shows
This control function is shown below. 1ooo is a traffic volume calculation unit that predicts the traffic volume in the tunnel based on the traffic volume detected by the interchange. 1ooi is the operation pattern determination unit that determines the ventilation pattern based on the predictions of the text/quantity calculation unit, and 100 is the pollution day that performs the averaging process of smoke transmittance, -carbon oxide, etc. A calculation unit / 003 is a comparison calculation unit that compares the feedback value from the pollution data calculation unit with a reference value to find a deviation; / 0047 is a comparison calculation unit 1003 that calculates a deviation from the feedback value from the pollution data calculation unit; The correction calculation unit 1oos corrects based on the deviation from the correction calculation unit 1
oo4L is a coding unit that codes the modified ventilator operating pattern. The code from the coding unit 1oos is sent to each remote stage λ823 via the master stage sensor xo3.
/, 2≠7, is decoded by each remote stage code, and a start/stop signal is given to each ventilator.

Various choices can be made as to which device should have the functions of the control blocks described above, but for example, the functions of the control blocks 1000, 100/ and 100j may be incorporated into the host converter 20/, and the functions of the control blocks 100, 100,
The functions 1003 and 100≠ can be built into each remote stage.

When the host controller OL is healthy, the control described with reference to FIG. 5 is performed. As a result, all the ventilators in the tunnel are linked to each other and controlled to operate efficiently by supplementing predictive control based on predicted traffic volume with feedback control based on pollution data, etc. On the other hand, when the host computer 20/ stops,
Each of the remote stages is independently controlled in the same manner as the apparatus shown in FIG. 3, that is, feedback control is performed based on contamination data and the like.

As described above, according to the present invention, efficient operation control can be performed in a longitudinal ventilation system having a plurality of ventilators.

[Brief explanation of the drawing]

Figure 1 shows an analysis of a tunnel equipped with a longitudinal ventilation system, Figure 2 is a diagram showing the contamination distribution inside the tunnel, and Figure 3 shows an example of a conventional ventilation control device. FIG. 5 is a block diagram showing a ventilation control device according to an embodiment of the present invention, and FIG. 5 is a block diagram showing a control block. 20...Tunnel equipment management center, 2, 7...
Sarujin Nemuro 1 and 2...Underground ventilation area, Ko0/...Host computer, 203...Master stage Sumire,
koλ/, λ3/. 2μl...Remote stage container, 222, λ3λ
, 2112... electric motor denigration, 223. KoJJ, ,2
L? ...ventilator, -2≠. 23 Hiro, , 24Z4t...sensor, koλchiko31.
Kohiroj...processing device, 1ooo...traffic volume calculation unit,
100/... Driving pattern determination unit, ioo code... Contamination data performance unit, 1003... Comparison calculation unit, 100
17...Revised performance section, 100! ...Coding section. Applicant Hiroto Inomata Kiyoshi! l! ,1
Prisoner! ! , 2 fig.

Claims (1)

[Claims] It is placed near each of a plurality of ventilators installed in a tunnel for automobiles with longitudinal forced ventilation. , a host combination that predicts and controls ventilation based on the predicted value of traffic volume, -7, the remote stage Caon, and the host combination island-! and a dataway connecting the host combination island, and when the host combination island is healthy, the ventilator is controlled by supplementing the predictive control based on the predicted value of the pre-distributed traffic volume with the feedback control based on the pollution amount data, An automobile tunnel ventilation control device that operates a ventilation machine only by the feedback control of the remote stage when the host vehicle is stopped.