JPH05195698A - Tunnel ventilation control device - Google Patents

Abstract

PURPOSE:To perform control in consideration of energy saving by selecting the jet fan operation direction while keeping the haze transmission factor and the carbon monoxide value within allowable ranges when switching the jet fan operation direction. CONSTITUTION:When the wind direction in a tunnel is judged to be reversed by a reverse wind judging function 11, the number of jet fans to be operated for keeping the haze transmission factor (VI) and the carbon monoxide (CO) value within allowable ranges is calculated based on the data from a traffic volume predicting/calculating function 12, and the continuous power quantity A for operating the number of jet fans is determined. The switching power quantity B for switching the jet fan (JF) operation direction is determined by a switching power quantity calculating function 15. The number of jet fans to be operated for keeping the VI and CO value within the allowable ranges is calculated based on the data from the traffic volume predicting/ calculating function 12, and the power quantity C required to operate the number of jet fans is determined. The power quantity of the sum of the power quantities B, C is compared in a comparing circuit 18, and the optimum operation direction is determined. The operation control requiring a small operation power quantity and having high efficiency can be performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tunnel ventilation control device using a jet fan for ventilation of a road tunnel.

[0002]

2. Description of the Related Art Conventionally, in the case of controlling the switching of jet fan operating directions in tunnel ventilation control, if the wind direction in the tunnel is reversed for a certain period of time compared to the current jet fan operating direction, the jet fan operating direction is switched. ing.

[0003]

However, in the conventional tunnel ventilation control system, the jet fan operating direction is switched to the same direction as the wind direction in the tunnel is reversed for a certain period of time from the current jet fan operating direction. Therefore, if traffic volume increases and the wind direction inside the tunnel reverses again, the jet fan operating direction will also switch to the opposite direction, that is, the original jet fan operating direction will be restored. One of the purposes of tunnel ventilation control is to conserve energy if the smoke permeability and carbon monoxide values are within the permissible range. There was an inconvenience that it was not done.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a tunnel ventilation control device capable of performing control in consideration of energy saving when performing jet fan direction switching control in tunnel ventilation control.

[0005]

SUMMARY OF THE INVENTION The present invention is directed to an anemometer installed in a tunnel of an automobile for detecting the wind direction, a jet fan installed in the tunnel's tunnel and capable of switching the direction of operation. A headwind judgment function that detects that the jet fan operating direction and the wind direction indicated by the anemometer are opposite for a predetermined time, and the traffic volume that predicts the traffic volume based on the traffic volume basic value and the current traffic volume data. Based on the prediction calculation function and the traffic volume prediction data output from this traffic volume calculation function, in order to keep the fume permeability and carbon monoxide value within the allowable range when operating in the current jet fan operating direction Based on the jet fan operating number calculation function that calculates the jet fan operating number, and the jet fan operating number and data output from this jet fan operating number calculation function And the jet fan operating power amount prediction calculation function that predicts the continuous operation power of the jet fan Te,
A switching power amount calculation function that calculates the switching power amount required to switch the operating direction of the jet fan, and a jet fan operation that keeps the fume permeability and the carbon monoxide value within the allowable range when the operating direction of the jet fan is switched. A post-switching operation number calculation function that calculates the number of units and a post-switching power amount prediction calculation function that predicts the post-switching operation power amount of the jet fan based on the post-switching operation number data output from this switch operation number And a jet fan operation direction switching control function for determining an optimum operation direction from the continuous operation electric energy, the switching electric energy, and the post-switching operation electric energy.

[0006]

In the tunnel ventilation control device of the present invention, the operation of the jet fan which is installed in the tunnel's tunnel and whose direction can be changed by detecting the wind direction by the wind vane installed in the tunnel's tunnel for the automobile. It is detected that the direction and the wind direction indicated by the wind vane are opposite directions for a predetermined time, and the traffic volume is predicted based on the traffic volume basic value and the current traffic volume data, which is output from the traffic volume prediction calculation function. Calculating the number of operating jet fans to keep the fume permeability and carbon monoxide value within the allowable range when operating in the current operating direction of jet fans based on traffic volume prediction and data, and calculating the number of operating jet fans It is necessary to predict the continuous operating electric energy of the jet fan based on the number of jet fan operating units and data output from the function and switch the operating direction of the jet fan. It calculates the amount of electric power to be converted, calculates the number of jet fans operating to keep the fume permeability and the carbon monoxide value within the permissible range when the operating directions of the jet fans are switched, and outputs from the operating number calculation function after switching. The post-switching operating electric energy of the jet fan is predicted based on the post-switching operating number data, and the optimum operating direction is determined from the continuous operating electric energy, the switching electric energy, and the post-switching operating electric energy.

[0007]

EXAMPLE An example of the present invention will be described below. Figure 1
An anemometer (not shown) installed in the tunnel tunnel for automobiles to detect the wind direction, a jet fan (not shown) installed in the tunnel tunnel and capable of switching the direction of operation, and the operating direction of the jet fan and an indication of the anemometer Headwind, a judgment function 11 for detecting that the wind direction is in the opposite direction for a predetermined time, a traffic volume prediction calculation function 12 for predicting the traffic volume based on the traffic volume basic value and the current traffic volume data, and a traffic volume Based on the traffic volume prediction data output from the prediction calculation function 12, when the operation is continued in the current jet fan operation direction, calculate the number of jet fan operation to keep the fume permeability and carbon monoxide value within the allowable range. Jet fan operating number calculation function 13, and jet fan operating number output from the jet fan operating number calculation function 13,
A jet fan operating electric energy prediction calculation function 14 for predicting the continuous operating electric energy of the jet fan based on the data,
A switching power amount calculation function 15 for calculating the switching power amount required to switch the operating direction of the jet fan, and a jet for making the fume transmittance and the carbon monoxide value within the allowable range when the operating direction of the jet fan is switched. After-switching operation number calculation function 16 for calculating the number of operating fans and after-switching power amount prediction for predicting the operating power amount after switching of the jet fan based on the after-switching operation number data output from the after-switching operating number operation function 16 A jet fan operation direction switching control function 19 for determining an optimum operation direction from the calculation function 17, the continuous operation electric energy, the switching electric energy, and the post-switching operating electric energy.
And a tunnel ventilation control device comprising:

That is, the present invention is a jet fan (hereinafter referred to as JF).
When switching the driving direction, when the wind direction in the tunnel is reversed for a certain time from the current JF driving direction, the following (1)
The calculation processing from (5) to (5) is performed.

(1) Traffic volume prediction calculation based on traffic volume basic values and current traffic volume data.

(2) Based on the traffic volume prediction calculation data, the fume transmittance (hereinafter referred to as VI) and the carbon monoxide (hereinafter referred to as CO) values are within the allowable range when the vehicle is continuously driven in the current JF driving direction. Calculation of the number of JF operation to perform.

(3) Based on JF operating vehicle number calculation data,
JF operating electric energy prediction calculation.

(4) Calculation of electric energy required for switching the JF driving direction.

(5) V when the JF driving direction is changed
Calculation of the number of JF operating units within the I and CO allowable range.

By comparing and calculating the data calculated by these calculation processes (1) to (5), it is possible to provide the JF operation direction in which the VI and CO values are within the allowable range and the electric energy is small. It is a tunnel ventilation control method that can
When the F operation direction switching control is performed, the JF operation direction that reduces the power consumption can be selected while keeping the VI and CO values within the permissible range, so that energy saving can be achieved.

That is, in the flow chart showing the processing necessary for switching the JF operation direction shown in FIG.
It is determined whether or not the driving direction is opposite, and if not, the control process is ended. If the opposite is true,
Based on the data obtained from the traffic volume prediction calculation function 12, when driving in the current JF driving direction is continued, the number of JF driving that can keep the VI and CO values within the allowable range is calculated and the number of JF driving is moved. Obtain the required continuous operation electric energy A. Next, the switching power amount calculation function 15 obtains the switching power amount B required to switch the JF operation direction. Further, based on the data obtained from the traffic volume prediction calculation function 12, when the JF driving direction is switched, the VI and CO values can be set within the allowable range.
The number of operating units is calculated, and the post-switching operating electric energy C required to move the number of JF units is determined. Based on the above calculation result data, the continuous operation electric energy A and JF required in the current JF operation direction
The electric energy (B + C) when the operation direction is switched and operated is compared by the comparison circuit 18, and if the electric energy in the current JF operation direction is small, this control is ended. If the amount of electric power required for the operation by switching the JF operating direction is small, the JF operating direction switching control is performed.

[0016]

According to the present invention, when the JF operation direction switching control is performed, while keeping the VI and CO values within the permissible range,
Since the JF operation direction capable of reducing the power consumption can be selected, it is possible to provide the tunnel ventilation control device capable of controlling the VI and CO values within the allowable range and performing the energy saving JF operation direction switching control.

[Brief description of drawings]

FIG. 1 is a flow chart explanatory diagram of a tunnel ventilation control device showing an embodiment of the present invention.

[Explanation of symbols]

 11 ... Headwind determination function 12 ... Traffic volume prediction calculation function 13 ... Jet fan operating number calculation function 14 ... Jet fan operating power amount prediction calculation function 15 ... Switching power amount calculation function 16 ... Switched operation number calculation function 17 ... Switched power Quantity prediction calculation function 19 ... Driving direction switching control function

Claims (1)

[Claims] 1. An anemoscope installed in a tunnel of an automobile for detecting a wind direction, a jet fan installed in the tunnel's tunnel and capable of switching the operation direction, and a driving direction of the jet fan and the A headwind judgment function that detects that the wind direction indicated by the anemometer is in the opposite direction for a predetermined time, and a traffic volume prediction calculation function that predicts the traffic volume based on the traffic volume basic value and the current traffic volume data. Based on the traffic volume prediction data output from the traffic volume prediction calculation function, when operating in the current jet fan operating direction, the number of jet fans operating to keep the fume permeability and carbon monoxide value within the allowable range is set. The jet fan operating number calculation function for calculating, and the jet fan operating number calculation function output from this jet fan operating number calculation function Jet fan operating electric energy predictive calculation function for predicting the continuous operating electric energy of the fan, a switching electric energy calculating function for calculating the switching electric energy required for switching the operating direction of the jet fan, and the operating direction of the jet fan In the case of the above, the switching operation number calculation function for calculating the number of jet fan operation for keeping the fume transmittance and the carbon monoxide value within the allowable range, and the operation number data after switching output from the operation number calculation function after switching. Based on the above, the post-switching electric energy predictive calculation function for predicting the post-switching operating electric energy of the jet fan, and the optimum operating direction is determined from the continuous operating electric energy, the switching electric energy, and the post-switching operating electric energy. A tunnel ventilation control device having a jet fan operation direction switching control function.