EP0205979A1 - Tunnel ventilating system - Google Patents

Tunnel ventilating system Download PDF

Info

Publication number
EP0205979A1
EP0205979A1 EP86107313A EP86107313A EP0205979A1 EP 0205979 A1 EP0205979 A1 EP 0205979A1 EP 86107313 A EP86107313 A EP 86107313A EP 86107313 A EP86107313 A EP 86107313A EP 0205979 A1 EP0205979 A1 EP 0205979A1
Authority
EP
European Patent Office
Prior art keywords
ventilating
fans
space
ventilation
tunnel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86107313A
Other languages
German (de)
French (fr)
Other versions
EP0205979B1 (en
Inventor
Tugio Mitsubishi Denki K.K. Mizutani
Ryozo Mitsubishi Denki K.K. Murakawa
Youichi Mitsubishi Denki K.K. Hashimoto
Takashi Mitsubishi Denki K.K. Kimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP0205979A1 publication Critical patent/EP0205979A1/en
Application granted granted Critical
Publication of EP0205979B1 publication Critical patent/EP0205979B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/003Ventilation of traffic tunnels

Definitions

  • the present invention relates to a ventilating system for the enclosed space of various buildings or structures and, more specifically, to a ventilating system for ventilating a tunnel.
  • the ventilating system is of the type comprising a plurality of jet fans for causing the air introduced into a tunnel from outside to flow toward one or a plurality of ventilating ducts, a ventilating fan for discharging the air through the ventilating duct or ducts outside the tunnel, and a controller for controlling the jet fans and the ventilating fan according to the flow rate of air required for desired ventilation.
  • a tunnel has a structural feature that the length the length thereof is very large as compared with the area of the opposite ends thereof. Therefore, the tunnel requires an adequate ventilation to maintain an environment suitable for passage.
  • high-rate ventilation is essential to cause fresh air to circulate through and contaminated air containing the exhaust gas of automotive vehicles to be simultaneously withdrawn from the tunnel and to supply fresh air containing sufficient oxygen for the human bodies and the combustion in the engines of automotive vehicles.
  • Fig. 5 illustrates a known tunnel ventilating system for a highway tunnel.
  • a tunnel ventilating system is disclosed in Japanese Laid-Open Patent Application Publication No. 52-28500.
  • a highway tunnel 2 constructed under the ground 3 and having a roadway 5 communicates with the outside by means of a substantially vertical ventilating shaft 1.
  • a plurality of jet fans 6 draw fresh air through the opposite portals into the tunnel 2 and send the fresh air forcibly in the longitudinal direction toward the ventilating shaft 1.
  • a ventilating fan 4 is disposed within the ventilating shaft 1 near the outlet of the same to discharge the air in the tunnel 2 forcibly outside the tunnel 2.
  • a controller 12 controls the jet fans 6 and the ventilating fan 4 on the basis of signals given thereto by a contamination detecting system for detecting the degree of contamination of the air within the tunnel 2 and a counter for counting the automotive vehicles that go into and come out of the tunnel 2.
  • the contamination detecting system comprises haze transmissivity meters 7 (generally designated as "VI meters"), CO sensors 8 which detect the CO concentration of the atmosphere, and wind vane and anemometers 9.
  • the controller 12 decides the general degree of air contamination in the tunnel on the basis of data acquired by those measuring instruments and calculates the quantity of fresh air necessary for maintaining the environment of the tunnel in a satisfactory condition.
  • An appropriate ventilating system among various ventilating systems is selected by taking the conditions of the tunnel, such as the length, cross-sectional area, gradient and traffic volume of the tunnel, into consideration. Supplying sufficient fresh air to maintain the quality of the air inside the tunnel above the lower limit of a desired level and discharging contaminated air outside the tunnel are essential regardless of the type of the selected tunnel ventilating system, however, from the economic point of view, excessive ventilation is undesirable.
  • the number of working jet fans 6 is varied according to the calculated necessary rate of ventilation. That is, all the jet fans are operated when the necessary rate of ventilation is greater than a predetermined value, while the number of the working jet fans is reduced as the necessary rate of ventilation decreases.
  • Such a mode of controlling the rate of ventilation through the variation of the number of the operating jet fans causes the rate of ventilation to be changed in steps, and hence the actual rate of ventilation always exceeds the corresponding necessary rate of ventilation between the steps of variation.
  • a ventilating system comprises a plurality of jet fans provided within a space to be ventilated to draw fresh air into the space, and a plurality of ventilating fans provided in a ventilating shaft for discharging the air in the space outside the space.
  • the jet fans and the ventilating fans are respectively assigned to two subsystems, namely, a first subsystem and a second subsystem.
  • the jet fan or fans of the first subsystem and the ventilating fan or fans of the first subsystem are subjected to the on-off control of a controller, while the jet fan or fans and the ventilating fan or fans of the second subsystem are subjected to the continuous control of the controller, in which the respective outputs of the jet fan or fans and the ventilating fan or fans of the second subsystem are varied continuously.
  • the controller is capable of calculating the necessary rate of ventilation to establish a standard for controlling the first and second subsystems for desired ventilation, on the basis of data representing the degree of contamination of the air in the space detected by one or some of sensors disposed in the space to be ventilated.
  • the sensors for acquiring the data relating to the contamination of air are, by way of example, CO sensors, anemoscopes, anemometers, O2 meters and hygrometers. One or more of those sensors are disposed at appropriate positions in the space to be ventilated. The sensors send detection signals to the controller.
  • the space to be ventilated is a highway tunnel
  • the controller decides the respective numbers of the working jet fans and the working ventilating fans among those of the first subsystem on the basis of the calculated necessary rate of ventilation.
  • the mode of control of the jet fans and the ventilating fans of the first subsystem is on-off control. Accordingly, the selected jet fans and ventilating fans are operated at the respective maximum capacities.
  • the number of the jet fans and the ventilating fans of the first subsystem selected for operation by the controller is less than that of the jet fans and the ventilating fans necessary for meeting the desired rate of ventilation.
  • the deficiency in the rate of ventilation is compensated by the operation of the jet fans and the ventilating fans of the second subsystem at the respective rates corresponding to the deficiency. Accordingly, the actual rate of ventilation always coincides with the necessary rate of ventilation and thereby the waste of energy attributable to excessive ventilation can be effectively avoided.
  • Fig. 1 illustrates a tunnel ventilating system according to the present invention as applied to a highway tunnel 2 constructed through the ground 3 and having a roadway 5.
  • the tunnel 2 is connected in the central portion thereof with respect to the length thereof to a vertical ventilating shaft 1.
  • Fresh air is drawn through the opposite portals into the tunnel 2 and the air in the tunnel is discharged outside through the ventilating shaft 1 for desired ventilation of the tunnel.
  • the ventilating system illustrated in Fig. 1 is so constructed that the fresh air is introduced into the inside of the tunnel through the portals at both ends
  • the present invention is applicable to another form of ventilation wherein the fresh air is introduced through one of the portals and then discharged outside through a duct and at the same time the fresh air is introduced through another duct into the tunnel and exhausted through the other portal.
  • Fig. 1 For simplification, four jet fans 6a, 6b, 6c and 6d disposed in the tunnel 2 at predetermined intervals and three ventilating fans 4a, 4b and 4c disposed within the ventilating shaft 1 are shown in Fig. 1.
  • the ventilation of the tunnel 2 in the above-mentioned mode is carried out by the agency of these jet fans and ventilating fans.
  • the two jet fans 6a and 6d and the two jet fans 6b and 6c are assigned to two separate subsystems, respectively.
  • the ventilating fan 4a and the ventilating fans 4b and 4c are assigned to two separate subsystems, respectively.
  • a controller 12 controls the subsystems individually for the appropriate operation of the jet fans and the ventilating fans according to a necessary rate of ventilation.
  • a necessary rate of ventilation is obtained through the known operation of VI value, CO value, wind speed, wind direction and the count of automotive vehicles passed through the tunnel which are detected by sensors 7, 8, 9 and 10 appropriately disposed in the tunnel, by the controller 12.
  • Fig. 2 shows the constitution of the controller 12 in detail.
  • a measured data processing unit 13 receives measured values measured by the VI meter 7 and the CO sensor 8, and then operates the measured data to determine the degree of air contamination in the tunnel.
  • the outputs of the measured data processing unit 13 and the arithmetic unit 14 are given to a control signal generating unit 15 to produce control signals for the individual control of the subsystems comprising the jet fans and the ventilating fans.
  • Fig. 3 is a graph typically showing the relation between the number of working jet fans and wind pressure in the tunnel resulting from the operation of those jet fans in a section A between one of the portals of the tunnel and the ventilating shaft 1.
  • Pl and P2 are airflow pressures produced by one jet fan and by two jet fans, respectively.
  • Pl and P2 are airflow pressures produced by one jet fan and by two jet fans, respectively.
  • the required wind pressure in the longitudinal direction of the tunnel is less than Pl
  • only one jet fan is operated at a rate corresponding to the required wind pressure.
  • the wind pressure varies along an inclined line VP1.
  • Pl two jet fans are operated; one of them at its full capacity and the other under variable capacity control.
  • the wind pressure varies along a line VP2.
  • the actual wind pressure in the tunnel exceeds the required wind pressure and the excessive wind pressure causes wasteful energy consumption. According to the present invention, it is possible to make the actual wind pressure always follow up the required wind pressure. In the highway tunnel, even if the operating condition of the jet fans is fixed, the wind pressure varies due to piston effect produced by automotive vehicles that pass through the highway tunnel at high speed.
  • the tunnel ventilating system of the present invention is capable of dealing with the variation of the wind pressure due to such a cause on the basis of measured values of wind direction and wind speed, the highway tunnel is ventilated stably at all times, which is the same with a section B.
  • Fig. 4 shows the relation of discharge or exhaust rate to the number of the working ventilating fans.
  • a required sicharge rate corresponding to a necessary rate of ventilation is below the maximum discharge rate Ql of one ventilating fan, only the ventilating fan 4a is operated at a discharge rate corresponding to the required discharge rate.
  • the required discharge rate is greater than the maximum discharge rate Ql, one or both of the ventilating fans 4b and 4c are additionally operated at the maximum discharge rate to obtain a control characteristic represented by a line VQ.
  • the tunnel ventilating system according to the present invention is capable of exactly meeting the necessary rate of ventilation and is also capable of dealing with the variation of the wind pressure attributable to the traffic of automotive vehicles through the tunnel, and hence the tunnel ventilating system according to the present invention is most advantageously applicable to railroad tunnels, subway tunnels and the like in addition to highway tunnels. It is apparent that the tunnel ventilating system according to the present invention is applicable also to all the spaces of buildings and structures that require ventilation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Ventilation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)

Abstract

A tunnel ventilating system for ventilating a highway tunnel (2) comprises a plurality of jet fans (6a, b, c, d) for drawing fresh air through the opposite portals of the highway tunnel into the highway tunnel and for causing the fresh air to flow toward a ventilating shaft (1), a plurality of ventilating fans (4a, b, c) for discharging the air in the highway tunnel through the ventilating shaft, and a controller (12) capable of determining necessary rate of ventilation on the basis of measured data representing the degree of contamination of the air in the highway tunnel and other factors indicating the conditions of the interior of the highway tunnel. The jet fans and the ventilating fans are assigned to first and second subsystems. The jet fans and the ventilating fans of the first subsystem are operated under on-off control mode, while the jet fans and the ventilating fans of the second subsystem are operated under variable rate control mode. Thus, the highway tunnel is always ventilated at the necessary rate of ventilation.

Description

    BACKGROUND OF THE INVENTION Field of the Invention
  • The present invention relates to a ventilating system for the enclosed space of various buildings or structures and, more specifically, to a ventilating system for ventilating a tunnel. The ventilating system is of the type comprising a plurality of jet fans for causing the air introduced into a tunnel from outside to flow toward one or a plurality of ventilating ducts, a ventilating fan for discharging the air through the ventilating duct or ducts outside the tunnel, and a controller for controlling the jet fans and the ventilating fan according to the flow rate of air required for desired ventilation.
  • Description of the Prior Art
  • A tunnel has a structural feature that the length the length thereof is very large as compared with the area of the opposite ends thereof. Therefore, the tunnel requires an adequate ventilation to maintain an environment suitable for passage. For a highway tunnel, high-rate ventilation is essential to cause fresh air to circulate through and contaminated air containing the exhaust gas of automotive vehicles to be simultaneously withdrawn from the tunnel and to supply fresh air containing sufficient oxygen for the human bodies and the combustion in the engines of automotive vehicles.
  • Fig. 5 illustrates a known tunnel ventilating system for a highway tunnel. Such a tunnel ventilating system is disclosed in Japanese Laid-Open Patent Application Publication No. 52-28500. Referring to Fig. 5, a highway tunnel 2 constructed under the ground 3 and having a roadway 5 communicates with the outside by means of a substantially vertical ventilating shaft 1. A plurality of jet fans 6 draw fresh air through the opposite portals into the tunnel 2 and send the fresh air forcibly in the longitudinal direction toward the ventilating shaft 1. A ventilating fan 4 is disposed within the ventilating shaft 1 near the outlet of the same to discharge the air in the tunnel 2 forcibly outside the tunnel 2.
  • A controller 12 controls the jet fans 6 and the ventilating fan 4 on the basis of signals given thereto by a contamination detecting system for detecting the degree of contamination of the air within the tunnel 2 and a counter for counting the automotive vehicles that go into and come out of the tunnel 2. Typically, the contamination detecting system comprises haze transmissivity meters 7 (generally designated as "VI meters"), CO sensors 8 which detect the CO concentration of the atmosphere, and wind vane and anemometers 9. The controller 12 decides the general degree of air contamination in the tunnel on the basis of data acquired by those measuring instruments and calculates the quantity of fresh air necessary for maintaining the environment of the tunnel in a satisfactory condition.
  • An appropriate ventilating system among various ventilating systems is selected by taking the conditions of the tunnel, such as the length, cross-sectional area, gradient and traffic volume of the tunnel, into consideration. Supplying sufficient fresh air to maintain the quality of the air inside the tunnel above the lower limit of a desired level and discharging contaminated air outside the tunnel are essential regardless of the type of the selected tunnel ventilating system, however, from the economic point of view, excessive ventilation is undesirable.
  • In the above-mentioned prior art tunnel ventilating system, the number of working jet fans 6 is varied according to the calculated necessary rate of ventilation. That is, all the jet fans are operated when the necessary rate of ventilation is greater than a predetermined value, while the number of the working jet fans is reduced as the necessary rate of ventilation decreases. Such a mode of controlling the rate of ventilation through the variation of the number of the operating jet fans causes the rate of ventilation to be changed in steps, and hence the actual rate of ventilation always exceeds the corresponding necessary rate of ventilation between the steps of variation.
  • SUMMARY OF THE INVENTION
  • It is an object of the present invention to provide a ventilating system capable of ventilating the internal space of a building or a structure at the least necessary rate of ventilation.
  • A ventilating system according to the present invention comprises a plurality of jet fans provided within a space to be ventilated to draw fresh air into the space, and a plurality of ventilating fans provided in a ventilating shaft for discharging the air in the space outside the space. The jet fans and the ventilating fans are respectively assigned to two subsystems, namely, a first subsystem and a second subsystem. The jet fan or fans of the first subsystem and the ventilating fan or fans of the first subsystem are subjected to the on-off control of a controller, while the jet fan or fans and the ventilating fan or fans of the second subsystem are subjected to the continuous control of the controller, in which the respective outputs of the jet fan or fans and the ventilating fan or fans of the second subsystem are varied continuously. The controller is capable of calculating the necessary rate of ventilation to establish a standard for controlling the first and second subsystems for desired ventilation, on the basis of data representing the degree of contamination of the air in the space detected by one or some of sensors disposed in the space to be ventilated.
  • The sensors for acquiring the data relating to the contamination of air are, by way of example, CO sensors, anemoscopes, anemometers, O2 meters and hygrometers. One or more of those sensors are disposed at appropriate positions in the space to be ventilated. The sensors send detection signals to the controller. In case that the space to be ventilated is a highway tunnel, it is desirable to provide a counter for counting the number of automotive vehicles that pass the highway tunnel. The count of automotive vehicles that passed in a unit time counted by the counter is effective for the estimation of the necessary rate of ventilation of the highway tunnel.
  • The controller decides the respective numbers of the working jet fans and the working ventilating fans among those of the first subsystem on the basis of the calculated necessary rate of ventilation. The mode of control of the jet fans and the ventilating fans of the first subsystem is on-off control. Accordingly, the selected jet fans and ventilating fans are operated at the respective maximum capacities. The number of the jet fans and the ventilating fans of the first subsystem selected for operation by the controller is less than that of the jet fans and the ventilating fans necessary for meeting the desired rate of ventilation. The deficiency in the rate of ventilation is compensated by the operation of the jet fans and the ventilating fans of the second subsystem at the respective rates corresponding to the deficiency. Accordingly, the actual rate of ventilation always coincides with the necessary rate of ventilation and thereby the waste of energy attributable to excessive ventilation can be effectively avoided.
  • BRIEF DESCRIPTION OF THE DRAWINGS
    • Figure 1 is a schematic illustration of a tunnel ventilating system according to the present invention installed in a highway tunnel;
    • Figure 2 is a block diagram showing the constitution of a controller employed in the tunnel ventilating system of Fig. 1;
    • Figure 3 is a graph showing the relation between the number of working jet fans and wind pressure;
    • Figure 4 is a graph showing the relation between the number of working ventilating fans and the rate of discharge; and
    • Figure 5 is a schematic illustration of a conventional tunnel ventilating system installed in a highway tunnel.
    DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • Fig. 1 illustrates a tunnel ventilating system according to the present invention as applied to a highway tunnel 2 constructed through the ground 3 and having a roadway 5. The tunnel 2 is connected in the central portion thereof with respect to the length thereof to a vertical ventilating shaft 1. Fresh air is drawn through the opposite portals into the tunnel 2 and the air in the tunnel is discharged outside through the ventilating shaft 1 for desired ventilation of the tunnel. Although the ventilating system illustrated in Fig. 1 is so constructed that the fresh air is introduced into the inside of the tunnel through the portals at both ends, the present invention is applicable to another form of ventilation wherein the fresh air is introduced through one of the portals and then discharged outside through a duct and at the same time the fresh air is introduced through another duct into the tunnel and exhausted through the other portal.
  • For simplification, four jet fans 6a, 6b, 6c and 6d disposed in the tunnel 2 at predetermined intervals and three ventilating fans 4a, 4b and 4c disposed within the ventilating shaft 1 are shown in Fig. 1. The ventilation of the tunnel 2 in the above-mentioned mode is carried out by the agency of these jet fans and ventilating fans. As will be described in detail later, the two jet fans 6a and 6d and the two jet fans 6b and 6c are assigned to two separate subsystems, respectively. Similarly, the ventilating fan 4a and the ventilating fans 4b and 4c are assigned to two separate subsystems, respectively.
  • A controller 12 controls the subsystems individually for the appropriate operation of the jet fans and the ventilating fans according to a necessary rate of ventilation. Such a necessary rate of ventilation is obtained through the known operation of VI value, CO value, wind speed, wind direction and the count of automotive vehicles passed through the tunnel which are detected by sensors 7, 8, 9 and 10 appropriately disposed in the tunnel, by the controller 12.
  • Fig. 2 shows the constitution of the controller 12 in detail. A measured data processing unit 13 receives measured values measured by the VI meter 7 and the CO sensor 8, and then operates the measured data to determine the degree of air contamination in the tunnel. An arithmetic unit 14, similarly to the measured data processing unit 13, executes operation to determine the pressure condition of the interior of the tunnel on the basis of measured data provided by the wind vane and anemometer 9 and the vehicle counter 10. The outputs of the measured data processing unit 13 and the arithmetic unit 14 are given to a control signal generating unit 15 to produce control signals for the individual control of the subsystems comprising the jet fans and the ventilating fans.
  • Fig. 3 is a graph typically showing the relation between the number of working jet fans and wind pressure in the tunnel resulting from the operation of those jet fans in a section A between one of the portals of the tunnel and the ventilating shaft 1. In Fig. 3, Pl and P2 are airflow pressures produced by one jet fan and by two jet fans, respectively. When necessary rate of ventilation is comparatively small and, hence, the required wind pressure in the longitudinal direction of the tunnel is less than Pl, only one jet fan is operated at a rate corresponding to the required wind pressure. In this state, the wind pressure varies along an inclined line VP1. When the required wind pressure is greater than Pl, two jet fans are operated; one of them at its full capacity and the other under variable capacity control. In this state, the wind pressure varies along a line VP2. If one of the two jet fans or both of the jet fans are operated continuously at full capacity under a condition other than a condition in which the required wind pressure coincides exactly with the wind pressure Pl or P2, respectively, the actual wind pressure in the tunnel exceeds the required wind pressure and the excessive wind pressure causes wasteful energy consumption. According to the present invention, it is possible to make the actual wind pressure always follow up the required wind pressure. In the highway tunnel, even if the operating condition of the jet fans is fixed, the wind pressure varies due to piston effect produced by automotive vehicles that pass through the highway tunnel at high speed. Since the tunnel ventilating system of the present invention is capable of dealing with the variation of the wind pressure due to such a cause on the basis of measured values of wind direction and wind speed, the highway tunnel is ventilated stably at all times, which is the same with a section B.
  • The ventilating fans 4a, 4b and 4c also are controlled in the same manner. Fig. 4 shows the relation of discharge or exhaust rate to the number of the working ventilating fans. When a required sicharge rate corresponding to a necessary rate of ventilation is below the maximum discharge rate Ql of one ventilating fan, only the ventilating fan 4a is operated at a discharge rate corresponding to the required discharge rate. When the required discharge rate is greater than the maximum discharge rate Ql, one or both of the ventilating fans 4b and 4c are additionally operated at the maximum discharge rate to obtain a control characteristic represented by a line VQ.
  • As is apparent from what has been described hereinbefore, the tunnel ventilating system according to the present invention is capable of exactly meeting the necessary rate of ventilation and is also capable of dealing with the variation of the wind pressure attributable to the traffic of automotive vehicles through the tunnel, and hence the tunnel ventilating system according to the present invention is most advantageously applicable to railroad tunnels, subway tunnels and the like in addition to highway tunnels. It is apparent that the tunnel ventilating system according to the present invention is applicable also to all the spaces of buildings and structures that require ventilation.

Claims (4)

1. A ventilating system for ventilating a space formed within a building or a structure, and connected to the outside at least at one open end thereof, by discharging the air in the space through a ventilating shaft connected to the space, said ventilating system being of the type having a plurality of jet fans disposed within the space to draw fresh air into the space through the open end of the space and to cause the fresh air to flow within the space toward said shaft, a plurality of ventilating fans disposed within said ventilating shaft to discharge the air in the space outside the space through said ventilating shaft, and a controller for controlling said jet fans and said ventilating fans according to the necessary rate of ventilation of the space, the improvement comprising:
said jet fans and said ventilating fans are assigned to a first subsystem and a second subsystem;
said first and second subsystems are controlled individually by the controller;
said jet fans and said ventilating fans of said first subsystem are operated under on-off control mode; and
said jet fans and said ventilating fans of said second subsystem are operated under variable rate control mode so that the rate of ventilation of said second subsystem corresponds to the difference between the necessary rate of ventilation and the rate of ventilation of said first subsystem.
2. A ventilating system claimed in Claim 1, wherein haze transmissivity meters, CO sensors and wind vane and anemometers are provided in said space to acquire data for determining the necessary rate of ventilation.
3. A ventilating system claimed in Claim 2, wherein the structure defining said space is a highway tunnel, and a counter for counting the number of automotive vehicles that passes through the highway tunnel is provided.
4. A ventilating system claimed in Claim 3, wherein said controller comprises a measured data processing unit which processes signals given thereto by said haze transmissivity meters and said CO sensors to provide a signal representing the degree of air contamination, an arithmetic unit which operates signals given thereto by said wind vane and anemometers and said counters to provide a signal representing the pressure condition of said highway tunnel, and a control signal generating unit which determines the necessary rate of ventilation on the basis of the output signals of said measured data processing unit and said arithmetic unit and gives separate control signals corresponding to the necessary rate of ventilation to said first and second subsystems, respectively.
EP19860107313 1985-06-11 1986-05-30 Tunnel ventilating system Expired EP0205979B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP125056/85 1985-06-11
JP12505685A JPS61286500A (en) 1985-06-11 1985-06-11 Ventilation controller

Publications (2)

Publication Number Publication Date
EP0205979A1 true EP0205979A1 (en) 1986-12-30
EP0205979B1 EP0205979B1 (en) 1988-10-12

Family

ID=14900727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860107313 Expired EP0205979B1 (en) 1985-06-11 1986-05-30 Tunnel ventilating system

Country Status (3)

Country Link
EP (1) EP0205979B1 (en)
JP (1) JPS61286500A (en)
DE (1) DE3660933D1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240713A1 (en) * 1986-04-07 1987-10-14 Mitsubishi Denki Kabushiki Kaisha Controller for tunnel ventilating system
EP0260624A1 (en) * 1986-09-16 1988-03-23 Stal Refrigeration Ab Fresh air supply system for holds in a ship
WO1991014827A1 (en) * 1990-03-29 1991-10-03 Airchitect I Söderhamn Ab Method and installation for air treatment in the area of a traffic route for motor vehicles
WO2000036275A1 (en) * 1998-12-11 2000-06-22 Svein Inge Haaland A ventilation for tunnels and a method for control of same
US7137775B2 (en) 2003-03-20 2006-11-21 Huntair Inc. Fan array fan section in air-handling systems
NL1030372C2 (en) * 2005-11-08 2007-05-09 Oranjewoud Ingb Bv Ventilation system and method for ventilating covered traffic routes.
US20110275302A1 (en) * 2008-10-24 2011-11-10 Mosen Limited Improved tunnel ventilation device
US8398365B2 (en) 2003-03-20 2013-03-19 Huntair, Inc. Modular fan units with sound attenuation layers for an air handling system
CN108374685A (en) * 2018-04-03 2018-08-07 浙江工业大学 Tunnel shaft air supply system combining natural wind with jet flow type ventilation
US11255332B2 (en) 2003-03-20 2022-02-22 Nortek Air Solutions, Llc Modular fan housing with multiple modular units having sound attenuation for a fan array for an air-handling system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0823277B2 (en) * 1988-06-24 1996-03-06 株式会社三井三池製作所 Method for controlling ventilation equipment in tunnel during excavation, and control device therefor
JPH032500A (en) * 1989-05-30 1991-01-08 Fujita Corp Operation controller for air blower for ventilation of shaft
DE10359540A1 (en) * 2003-12-17 2005-07-14 Tlt-Turbo Gmbh Device and method for determining the flow velocity
JP5381277B2 (en) * 2009-04-23 2014-01-08 オムロン株式会社 Blower control pattern creation device
CN115013908B (en) * 2022-05-23 2024-03-12 成都市人防建筑设计研究院有限公司 Natural ventilation structure based on piston effect

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2005424A1 (en) * 1970-02-06 1971-08-26 Foldiak, Janos L , Dipl Ing , 8000 München Longitudinally ventilated traffic tunnel with reversible fans in the blowing direction
FR2358542A1 (en) * 1976-07-16 1978-02-10 Sofrair Controlling ventilation of tunnels and galleries - using anemometer for automatic sampling of natural air currents to drive fans in direction requiring least power
DE3117147A1 (en) * 1981-04-30 1982-11-18 Daimler-Benz Ag, 7000 Stuttgart Road tunnel with forced ventilation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2005424A1 (en) * 1970-02-06 1971-08-26 Foldiak, Janos L , Dipl Ing , 8000 München Longitudinally ventilated traffic tunnel with reversible fans in the blowing direction
FR2358542A1 (en) * 1976-07-16 1978-02-10 Sofrair Controlling ventilation of tunnels and galleries - using anemometer for automatic sampling of natural air currents to drive fans in direction requiring least power
DE3117147A1 (en) * 1981-04-30 1982-11-18 Daimler-Benz Ag, 7000 Stuttgart Road tunnel with forced ventilation

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240713A1 (en) * 1986-04-07 1987-10-14 Mitsubishi Denki Kabushiki Kaisha Controller for tunnel ventilating system
EP0260624A1 (en) * 1986-09-16 1988-03-23 Stal Refrigeration Ab Fresh air supply system for holds in a ship
WO1991014827A1 (en) * 1990-03-29 1991-10-03 Airchitect I Söderhamn Ab Method and installation for air treatment in the area of a traffic route for motor vehicles
WO2000036275A1 (en) * 1998-12-11 2000-06-22 Svein Inge Haaland A ventilation for tunnels and a method for control of same
US7922442B2 (en) 2003-03-20 2011-04-12 Huntair, Inc. Fan array fan section in air-handling systems
US10495094B2 (en) 2003-03-20 2019-12-03 Nortek Air Solutions, Llc Modular fan housing with multiple modular units having sound attenuation for a fan array for an air-handling system
US11255332B2 (en) 2003-03-20 2022-02-22 Nortek Air Solutions, Llc Modular fan housing with multiple modular units having sound attenuation for a fan array for an air-handling system
US10641271B2 (en) 2003-03-20 2020-05-05 Nortek Air Solutions, Llc Fan array fan section in air-handling systems
US7527468B2 (en) 2003-03-20 2009-05-05 Huntair, Inc. Fan array fan section in air-handling systems
US7914252B2 (en) 2003-03-20 2011-03-29 Huntair, Inc. Fan array fan section in air-handling systems
US8734086B2 (en) 2003-03-20 2014-05-27 Huntair, Inc. Modular fan housing with multiple modular units having sound attenuation for a fan array for an air-handling system
US7179046B2 (en) 2003-03-20 2007-02-20 Huntair Inc. Fan array fan section in air-handling systems
US8398365B2 (en) 2003-03-20 2013-03-19 Huntair, Inc. Modular fan units with sound attenuation layers for an air handling system
US8414251B2 (en) 2003-03-20 2013-04-09 Huntair, Inc. Modular fan housing with multiple modular units having sound attenuation for a fan array for an air-handling system
US8419348B2 (en) 2003-03-20 2013-04-16 Huntair, Inc. Fan array fan section in air-handling systems
US8556574B2 (en) 2003-03-20 2013-10-15 Huntair, Inc. Fan array fan section in air-handling systems
US8562283B2 (en) 2003-03-20 2013-10-22 Huntair, Inc. Fan array fan section in air-handling systems
US8694175B2 (en) 2003-03-20 2014-04-08 Huntair, Inc. Fan array fan section in air-handling systems
US7137775B2 (en) 2003-03-20 2006-11-21 Huntair Inc. Fan array fan section in air-handling systems
US8727700B2 (en) 2003-03-20 2014-05-20 Huntair, Inc. Fan array fan section in air-handling systems
US8727701B2 (en) 2004-03-19 2014-05-20 Huntair, Inc. Modular fan housing with multiple modular units having sound attenuation for a fan array for an air-handling system
EP1783323A1 (en) * 2005-11-08 2007-05-09 Ingenieursbureau Oranjewoud B.V. Ventilation system for covered traffic ways
NL1030372C2 (en) * 2005-11-08 2007-05-09 Oranjewoud Ingb Bv Ventilation system and method for ventilating covered traffic routes.
US20110275302A1 (en) * 2008-10-24 2011-11-10 Mosen Limited Improved tunnel ventilation device
CN108374685A (en) * 2018-04-03 2018-08-07 浙江工业大学 Tunnel shaft air supply system combining natural wind with jet flow type ventilation
CN108374685B (en) * 2018-04-03 2023-09-12 浙江工业大学 Tunnel vertical shaft air supply system combining natural wind with jet ventilation

Also Published As

Publication number Publication date
JPS61286500A (en) 1986-12-17
DE3660933D1 (en) 1988-11-17
EP0205979B1 (en) 1988-10-12

Similar Documents

Publication Publication Date Title
EP0205979B1 (en) Tunnel ventilating system
CN107288675B (en) Tunnel intelligent aeration control method
JPH0788137B2 (en) Ventilation control device for internal room especially in automobile
EP0240713A1 (en) Controller for tunnel ventilating system
ATE80584T1 (en) DEVICE FOR ADJUSTING AIR PRESSURE PUSH IN PASSENGER SPACES OF RAIL VEHICLES.
CN113431619A (en) Intelligent control system for ventilation of highway tunnel
EP0316688A2 (en) Gas sampling device
JP6754517B2 (en) Road tunnel ventilation control device
JPH1038336A (en) Controller for ventilation of tunnel
JPS59107127A (en) Method for ventilating parking lot
Leonard et al. Measurement of ventilation rates using a tracer gas
JP2985741B2 (en) Exhaust gas measurement device
JPH07127393A (en) Automatic ventilation control device
JPH0666098A (en) Tunnel ventilation control device
JP2000027600A (en) Ventilation system for road tunnel
KR19990027820A (en) Vehicle exhaust gas collecting device
JP2002227599A (en) Road tunnel ventilation controller
JP2541147B2 (en) Tunnel ventilation control method
JPS5922622A (en) Controlling method of flow rate of sucked air in dust collecting equipment
JPS6431032A (en) Flow rate control apparatus of dilution tunnel
JPH0144972B2 (en)
JP2967680B2 (en) Ventilation automatic control device
JPH083861Y2 (en) Exhaust duct outside air amount control device
JP2600532B2 (en) Tunnel ventilation control device
JPH0331636A (en) Ventilation device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 19870218

17Q First examination report despatched

Effective date: 19880111

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REF Corresponds to:

Ref document number: 3660933

Country of ref document: DE

Date of ref document: 19881117

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19940511

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19940520

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19940524

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19950530

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19950530

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19960201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960229

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST