A turbulent tunnel ventilation system and control method

Abstract

The present invention relates to the technical field of tunnel ventilation and smoke exhaust, and discloses a turbulent tunnel ventilation system and control method. The system includes a tunnel ventilation and smoke exhaust unit and at least one turbulent unit; each tunnel ventilation and smoke exhaust unit is only provided with one tunnel fan, which reduces the cost of civil engineering resources; a turbulent unit is provided, and by controlling the opening and closing of a turbulent wind control valve, disturbed air is formed, and the ineffective wind of the tunnel ventilation and smoke exhaust unit is reduced, and the demand for tunnel ventilation and smoke exhaust is met together with the tunnel ventilation and smoke exhaust unit. The present application also provides different tunnel ventilation and smoke exhaust modes and turbulent modes. When different intensities of ventilation and smoke exhaust are required, different tunnel ventilation and smoke exhaust modes and turbulent modes can be selected for combination, providing a flexible and multi-select solution for tunnel ventilation and smoke exhaust.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel ventilation and smoke exhaust, and in particular to a turbulent tunnel ventilation system and a control method. Background Art

[0002] The subway has become the main means of transportation for urban residents due to its large capacity, convenience and speed. However, underground stations and tunnels are relatively closed. Once a fire occurs, evacuation and rescue are very difficult, especially in underground sections. Due to the lack of evacuation passages directly to the ground, people can only be evacuated and rescued longitudinally in the tunnel during a fire. Without effective measures, it is easy to cause huge losses. The "Metro Design Fire Protection Standard" GB51298-2018 stipulates that underground sections with a continuous length greater than the length of a train and fully enclosed lanes should consider passenger evacuation plans and smoke exhaust measures when the train stops in the section fire. Smoke exhaust generally adopts longitudinal ventilation, and the ventilation direction should be opposite to the passenger evacuation direction, so that passengers evacuate in the direction of the airflow. In addition, underground spaces need to be supplied with fresh air in a timely manner. The accumulated heat dissipation from trains, equipment, cables, etc. in the subway can easily cause the temperature of the tunnel to rise year by year. Therefore, the tunnel air temperature and humidity environment required for the normal operation of the train must be guaranteed. In general, in addition to using the train piston wind to ventilate the tunnel, for the southern regions where the average outdoor temperature is higher throughout the year, when the piston wind cannot meet the cooling demand, the tunnel will also be mechanically ventilated by fans during the period when the outdoor temperature is relatively low after the train stops operating.

[0003] Based on the above tunnel fire accidents and normal operation needs, the current general practice is to set up double piston air ducts at both ends of the station, and set up a tunnel fan (TVF fan) in each air duct, that is, set up 2 piston air ducts and 2 tunnel fans at each end of the station, and a total of 4 piston air ducts and 4 tunnel fans are set up in one station. In the piston air duct, each tunnel fan needs to be set up with a separate storage space and supporting electrical appliances, and the corresponding civil engineering resources and power resources are invested. However, the wind generated by the tunnel fan does not completely act on the fire zone in the tunnel, and invalid wind will inevitably be formed in the non-fire zone on the other side, resulting in a waste of tunnel fans, which in turn leads to a waste of civil engineering resources and power resources.

[0004] Therefore, there is an urgent need for a turbulent tunnel ventilation system and control method that can reduce the cost of civil engineering resources and power resources while meeting the needs of tunnel ventilation and smoke exhaust. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a spoiler-type tunnel ventilation system and a control method, comprising: a tunnel ventilation and smoke exhaust unit and at least one spoiler unit;

[0006] The tunnel ventilation and smoke exhaust unit is arranged in the tunnel between the platforms, and the spoiler unit is arranged between the tunnel ventilation and smoke exhaust unit and the platform, and close to the platform end;

[0007] Each of the tunnel ventilation and smoke exhaust units includes a tunnel fan, two piston air ducts, and a plurality of air valves. By opening and closing each air valve, the tunnel fan is controlled to ventilate and exhaust smoke for the corresponding tunnel on one side through each piston air duct;

[0008] Each of the spoiler units includes a spoiler fan, two spoiler air ducts and a plurality of spoiler air control valves, which control the opening and closing of the spoiler air control valves to disturb the air so that the spoiler fan provides spoiler air in the corresponding direction.

[0009] Further, one end of the first piston air shaft is exposed on the ground and communicated with the outdoor atmosphere, and the other end is connected to the first piston air valve; one end of the second piston air shaft is exposed on the ground and communicated with the outdoor atmosphere, and the other end is connected to the second piston air valve;

[0010] One end of the tunnel fan linkage air valve is connected to the tunnel fan, and the other end is connected to the first piston air shaft or the second piston air shaft;

[0011] The other end of the first piston air valve is connected to the first piston mechanical air valve through the first civil engineering air duct; the other end of the second piston air valve is connected to the second piston mechanical air valve through the second civil engineering air duct; the first piston mechanical air valve is arranged on the top plate or side wall of the first tunnel; the second piston mechanical air valve is arranged on the top plate or side wall of the second tunnel;

[0012] One end of the tunnel fan away from the tunnel fan linkage air valve is directly connected to the first civil engineering air duct, and is connected to the second civil engineering air duct via the left and right line ventilation valves; or one end of the tunnel fan away from the tunnel fan linkage air valve is directly connected to the second civil engineering air duct, and is connected to the first civil engineering air duct via the left and right line ventilation valves.

[0013] Further, spoiler wind ducts are respectively arranged at the spoiler fan end near the platform end and the end far from the platform end; the first spoiler wind control valve and the third spoiler wind control valve are respectively arranged on both sides of the platform of the spoiler wind duct far from the platform end, and the second spoiler wind control valve and the fourth spoiler wind control valve are respectively arranged on both sides of the platform of the spoiler wind duct near the platform end; the first spoiler wind control valve and the second spoiler wind control valve are arranged in the first tunnel, and the third spoiler wind control valve and the fourth spoiler wind control valve are arranged in the second tunnel. Further, the first spoiler wind control valve, the third spoiler wind control valve, the second spoiler wind control valve and the fourth spoiler wind control valve are arranged, all of which have multiple gears.

[0014] On the other hand, the present application provides a spoiler-type tunnel ventilation control method, using the above spoiler-type tunnel ventilation system, opening the tunnel fan linkage air valve and the first piston mechanical air valve, and closing the first piston air valve, the second piston air valve, the left and right line-connected air valves and the second piston mechanical air valve:

[0015] The tunnel fan is set to rotate forward, and the air in the tunnel where the first piston mechanical air valve is located flows to the outdoors through the first civil engineering air duct;

[0016] The tunnel fan is set to reverse, and the air flows through the first civil construction air duct to the tunnel where the first piston mechanical air valve is located.

[0017] The present application also provides a spoiler-type tunnel ventilation control method, using the above spoiler-type tunnel ventilation system, opening the tunnel fan linkage air valve, the left and right line-connected air valves and the second piston mechanical air valve, and closing the first piston air valve, the second piston air valve and the first piston mechanical air valve:

[0018] The tunnel fan is set to rotate forward, and the air on the tunnel side where the second piston mechanical air valve is located flows to the outside through the second civil engineering air duct;

[0019] Set the tunnel fan to reverse, and the air flows through the second civil engineering air duct to the tunnel where the second piston mechanical air valve is located.

[0020] The present application also provides a spoiler-type tunnel ventilation control method, using the above-mentioned spoiler-type tunnel ventilation system, opening the third spoiler wind control valve and the fourth spoiler wind control valve, and closing the first spoiler wind control valve and the second spoiler wind control valve:

[0021] The spoiler fan is set to rotate forward to disturb the air to form an airflow resistance in the first tunnel from the fourth spoiler air control valve to the third spoiler air control valve;

[0022] The spoiler fan is set to reverse, and the spoiler air is disturbed to form an airflow resistance in the first tunnel from the third spoiler air control valve to the fourth spoiler air control valve.

[0023] The present application also provides a spoiler-type tunnel ventilation control method, using the above-mentioned spoiler-type tunnel ventilation system, opening the first spoiler wind control valve and the second spoiler wind control valve, and closing the third spoiler wind control valve and the fourth spoiler wind control valve:

[0024] The spoiler fan is set to rotate forward to disturb the air to form an airflow resistance in the second tunnel from the second spoiler air control valve to the first spoiler air control valve;

[0025] The spoiler fan is set to reverse, and the spoiler air is disturbed to form an airflow resistance in the second tunnel from the first spoiler air control valve to the second spoiler air control valve.

[0026] The embodiments of the present invention have the following technical effects:

[0027] 1. The invention provides a turbulent tunnel ventilation system, including a tunnel ventilation and smoke exhaust unit and at least one turbulent unit; each tunnel ventilation and smoke exhaust unit is only provided with one tunnel fan, which reduces the cost of civil engineering resources; at the same time, through the opening and closing of each air valve, the tunnel fan is controlled to ventilate and exhaust the tunnel on its corresponding side through each piston air duct, thereby meeting the ventilation and smoke exhaust requirements of the tunnel; in addition, a turbulent unit is provided, and by controlling the opening and closing of the turbulent wind control valve, the formation of disturbed air is disturbed, the ineffective wind of the tunnel ventilation and smoke exhaust unit is reduced, the ineffective diffusion of air flow is prevented, and the ventilation and smoke exhaust requirements of the tunnel are met together with the tunnel ventilation and smoke exhaust unit.

[0028] 2. In addition, the present invention also provides a turbulence-type tunnel ventilation control method. Based on the above-mentioned ventilation system, different tunnel ventilation and smoke exhaust modes and turbulence modes are provided. When different intensities of ventilation and smoke exhaust are required, different tunnel ventilation and smoke exhaust modes and turbulence modes can be selected for combination, providing a flexible and multi-choice solution for tunnel ventilation and smoke exhaust. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a structural schematic diagram of a spoiler-type tunnel ventilation system provided by an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of a typical layout of a first tunnel ventilation and smoke exhaust unit provided in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of a typical layout of a second tunnel ventilation and smoke exhaust unit provided in an embodiment of the present invention;

[0033] Figure 4 Schematic diagram of a typical arrangement of spoiler units provided in an embodiment of the present invention.

[0034] The following are the descriptions of the reference numerals:

[0035] 1. Station platform; 2. First tunnel; 3. Second tunnel; 4. Train; 101. Tunnel fan; 102. Tunnel fan linkage air valve; 103. First piston air valve; 104. Second piston air valve; 105. Left and right line linkage air valves; 106. First piston mechanical air valve; 107. Second piston mechanical air valve; 108. First civil engineering air duct; 109. Second civil engineering air duct; 110. First piston air shaft; 111. Second piston air shaft; 201. Turbine fan; 202. Third turbulent wind control valve; 203. Fourth turbulent wind control valve; 204. First turbulent wind control valve; 205. Second turbulent wind control valve; 206. Turbine air duct. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0037] In order to reduce the cost of civil engineering resources and the number of tunnel fans, one tunnel fan is set for two adjacent piston air shafts. When a fire occurs, two tunnel fans need to be turned on at the same time for ventilation and smoke exhaust. Reducing it to one tunnel fan cannot meet the requirements. Therefore, this application also sets up a spoiler unit to reduce the wind direction of the tunnel fan to the tunnel, improve the ventilation and smoke exhaust performance, and overcome the problem of insufficient power of a single tunnel fan.

[0038] On the one hand, the present application provides a spoiler-type tunnel ventilation system, Figure 1 is a schematic diagram of the structure of a turbulent tunnel ventilation system provided by an embodiment of the present invention, such as Figure 1 As shown, the system comprises: a tunnel ventilation and smoke exhaust unit and at least one spoiler unit;

[0039] The tunnel ventilation and smoke exhaust unit is arranged in the tunnel between the platforms, and the spoiler unit is arranged between the tunnel ventilation and smoke exhaust unit and the platform, and close to the platform end;

[0040] The existing piston air shafts are usually arranged on both sides outside the station platform 1. The present application does not make any improvement in this regard and still arranges the tunnel ventilation and smoke exhaust unit in the tunnel between the platforms, also on both sides outside the station platform 1.

[0041] The spoiler unit is arranged between the tunnel ventilation and smoke exhaust unit and the platform, and is close to the platform end, so that the spoiler wind formed is in the same direction as the target air flow direction of the tunnel ventilation and smoke exhaust unit, better preventing the ineffective diffusion of the air flow, and jointly meeting the needs of tunnel ventilation and smoke exhaust with the tunnel ventilation and smoke exhaust unit. However, the number of spoiler units can be determined according to the wind volume of the spoiler fan 201. If the wind force of the spoiler fan 201 is large, one spoiler unit can be arranged at the same position near the platform; if the wind force of the spoiler fan 201 is small, multiple spoiler units can be arranged at the same position near the platform.

[0042] The purpose of the spoiler unit is to better prevent the ineffective diffusion of air flow, reduce the ineffective wind formed in the non-fire area on the other side, and meet the needs of tunnel ventilation and smoke exhaust together with the tunnel ventilation and smoke exhaust unit. Therefore, the function of the spoiler fan 201 is to disturb the nearby air, prevent ineffective wind, and reduce the energy loss of the tunnel fan 101, so the power required will be much less than the power of the tunnel fan 101. Therefore, even if multiple spoiler units are set, the sum of the power of each spoiler unit will be less than the power of the tunnel fan 101, thereby reducing the power resource consumption of multiple tunnel fans 101.

[0043] Each of the tunnel ventilation and smoke exhaust units includes a tunnel fan 101, two piston air ducts, and a plurality of air valves. By opening and closing each air valve, the tunnel fan 101 is controlled to ventilate and exhaust smoke for the corresponding tunnel on one side through each piston air duct.

[0044] Each of the spoiler units includes a spoiler fan 201, two spoiler air ducts 206 and a plurality of spoiler air control valves, which control the opening and closing of the spoiler air control valves to disturb the air so that the spoiler fan 201 provides spoiler air in the corresponding direction.

[0045] Further, one end of the first piston air shaft 110 is exposed on the ground and communicated with the outdoor atmosphere, and the other end is connected to the first piston air valve 103; one end of the second piston air shaft 111 is exposed on the ground and communicated with the outdoor atmosphere, and the other end is connected to the second piston air valve 104;

[0046] One end of the tunnel fan linkage air valve 102 is connected to the tunnel fan 101, and the other end is connected to the first piston air shaft 110 or the second piston air shaft 111; Figure 2 The tunnel fan 101 is directly connected to the first piston air shaft 110. Figure 3 The tunnel fan 101 is directly connected to the second piston air shaft 111. Obviously, the vertical space corresponding to the piston air shaft connected to the tunnel fan 101 is significantly larger, occupies more land resources, and requires more civil engineering excavation costs. This application achieves the purpose of reducing civil engineering costs by reducing the number of tunnel fans 101 used.

[0047] The other end of the first piston air valve 103 is connected to the first piston mechanical air valve 106 via the first civil engineering air duct 108; the other end of the second piston air valve 104 is connected to the second piston mechanical air valve 107 via the second civil engineering air duct 109; the first piston mechanical air valve 106 is arranged on the top plate or side wall of the first tunnel 2; the second piston mechanical air valve 107 is arranged on the top plate or side wall of the second tunnel 3;

[0048] For example, in Figure 1 In the figure, if the direction is from station A to station B, the first tunnel 2 and the second tunnel 3 are located on both sides of the station, which are equivalent to the left-line tunnel and the right-line tunnel.

[0049] One end of the tunnel fan 101 away from the tunnel fan linkage air valve 102 is directly connected to the first civil engineering air duct 108, and is connected to the second civil engineering air duct 109 via the left and right line connecting air valves 105; or one end of the tunnel fan 101 away from the tunnel fan linkage air valve 102 is directly connected to the second civil engineering air duct 109, and is connected to the first civil engineering air duct 108 via the left and right line connecting air valves 105.

[0050] It can also be said that the first piston mechanical air valve 106 is set on the top plate or side wall of the first tunnel 2, and is connected to the first piston air valve 103 and the first piston air shaft 110 through the first civil engineering air duct 108. The first piston air shaft 110 is connected to the outdoor atmosphere. This path is the piston ventilation path of the first tunnel 2. The second piston mechanical air valve 107 is set on the top plate or side wall of the second tunnel 3, and is connected to the second piston air valve 104 and the second piston air shaft 111 through the second civil engineering air duct 109. The second piston air shaft 111 is connected to the outdoor atmosphere. This path is the piston ventilation path of the second tunnel 3. After the tunnel fan 101 is connected in series with the tunnel fan linkage air valve 102, one end is connected to the first piston air shaft 110 or the second piston air shaft 111, and the other end is connected to the first piston mechanical air valve 106 and the second piston mechanical air valve 107 through the first civil engineering air duct 108 and the second civil engineering air duct 109; the first civil engineering air duct 108 and the second civil engineering air duct 109 are connected through the left and right line connecting ventilation valves 105, and the left and right line connecting ventilation valves 105 are arranged between the mouth of the tunnel fan 101 close to one side of the tunnel and the first civil engineering air duct 108 or between the mouth of the tunnel fan 101 close to one side of the tunnel and the second civil engineering air duct 109.

[0051] Further, a spoiler air duct 206 is respectively provided at the spoiler fan 201 near the platform end and far from the platform end; a first spoiler air control valve 204 and a third spoiler air control valve 202 are respectively provided on both sides of the platform far from the spoiler air duct 206 at the platform end, and a second spoiler air control valve 205 and a fourth spoiler air control valve 203 are respectively provided on both sides of the platform near the spoiler air duct 206 at the platform end; Figure 4As shown, the first spoiler wind control valve 204 and the second spoiler wind control valve 205 are located in the second tunnel 3 , and the third spoiler wind control valve 202 and the fourth spoiler wind control valve 203 are located in the first tunnel 2 .

[0052] It can also be explained that the third spoiler wind control valve 202 and the fourth spoiler wind control valve 203 are arranged on the top plate or side wall of the first tunnel 2, and the first spoiler wind control valve 204 and the second spoiler wind control valve 205 are arranged on the top plate or side wall of the second tunnel 3; the spoiler wind duct 206 is connected to both ends of the spoiler fan 201, the spoiler wind duct 206 at one end connects the third spoiler wind control valve 202 and the first spoiler wind control valve 204, and the spoiler wind duct 206 at the other end connects the second spoiler wind control valve 205 and the fourth spoiler wind control valve 203. The third spoiler wind control valve 202 and the fourth spoiler wind control valve 203 are connected to the first tunnel 2, and the first spoiler wind control valve 204 and the second spoiler wind control valve 205 are connected to the second tunnel 3.

[0053] Furthermore, a first spoiler wind control valve 204, a third spoiler wind control valve 202, a second spoiler wind control valve 205 and a fourth spoiler wind control valve 203 are provided, all of which have multiple gears.

[0054] Exemplarily, the tunnel fan 101 and the spoiler fan 201 are both reversible fans. The tunnel fan 101 is turned on when the tunnel is ventilated or smoke exhausted, and the spoiler fan 201 is turned on when the smoke exhaust demand is relatively large, such as tunnel smoke exhaust. The third spoiler wind control valve 202, the fourth spoiler wind control valve 203, the first spoiler wind control valve 204 and the second spoiler wind control valve 205 are three-speed regulating air valves, corresponding to the opening angle 1, the opening angle 2 and the closing gear respectively.

[0055] On the other hand, the present application also provides a spoiler-type tunnel ventilation control method, using the above-mentioned spoiler-type tunnel ventilation system, opening the tunnel fan linkage air valve 102 and the first piston mechanical air valve 106, and closing the first piston air valve 103, the second piston air valve 104, the left and right line-connected air valves 105 and the second piston mechanical air valve 107:

[0056] The tunnel fan 101 is set to rotate forward, and the air in the tunnel where the first piston mechanical air valve 106 is located flows to the outside through the first civil engineering air duct 108;

[0057] The tunnel fan 101 is set to reverse, and the air flows through the first civil engineering air duct 108 to the tunnel where the first piston mechanical air valve 106 is located.

[0058] Further, the tunnel fan linkage air valve 102, the left and right line air valves 105 and the second piston mechanical air valve 107 are opened, and the first piston air valve 103, the second piston air valve 104 and the first piston mechanical air valve 106 are closed:

[0059] The tunnel fan 101 is set to rotate forward, and the air in the tunnel where the second piston mechanical air valve 107 is located flows to the outside through the second civil engineering air duct 109;

[0060] The tunnel fan 101 is set to reverse, and the air flows through the second civil engineering air duct 109 to the tunnel where the second piston mechanical air valve 107 is located.

[0061] Exemplarily, the equipment operation of each tunnel ventilation and smoke exhaust unit includes six modes:

[0062] Ventilation and smoke exhaust mode 1: the tunnel fan 101, the tunnel fan linkage air valve 102 and the left and right line connected air valves 105 are closed, and the first piston air valve 103, the second piston air valve 104, the first piston mechanical air valve 106 and the second piston mechanical air valve 107 are opened.

[0063] This mode uses the piston effect of the tunnel without turning on the tunnel fan 101. The two piston air shafts both take in air naturally to meet daily ventilation needs.

[0064] Ventilation and smoke exhaust mode 2: The tunnel fan 101 rotates forward, the tunnel fan linkage air valve 102 and the first piston mechanical air valve 106 are opened, the first piston air valve 103, the second piston air valve 104, the left and right line ventilation valves 105 and the second piston mechanical air valve 107 are closed, and air or smoke flows from the first tunnel 2 to the outside.

[0065] For the first tunnel 2, in the "ventilation and smoke exhaust mode 2", the air of the first tunnel 2 is powered by the tunnel fan 101 and is discharged to the outside through the first piston mechanical air valve 106, the first civil engineering air duct 108, the tunnel fan 101, the tunnel fan linkage air valve 102, the first piston air shaft 110 or the second piston air shaft 111. The air or smoke of the first tunnel 2 is discharged to the outside to meet the exhaust or smoke exhaust requirements.

[0066] Ventilation and smoke exhaust mode three: the tunnel fan 101 reverses, the tunnel fan linkage air valve 102 and the first piston mechanical air valve 106 are opened, the first piston air valve 103, the second piston air valve 104, the left and right line ventilation valves 105 and the second piston mechanical air valve 107 are closed, and the air flows from the outside to the first tunnel 2.

[0067] In "ventilation and smoke exhaust mode three", the tunnel fan 101 provides power, and outdoor fresh air is delivered into the first tunnel 2 through the first piston air shaft 110 or the second piston air shaft 111, the tunnel fan linked air valve 102, the tunnel fan 101, the first civil engineering air duct 108, and the first piston mechanical air valve 106.

[0068] When there is a strong demand for ventilation and smoke removal, outside air enters the first tunnel 2 to disperse the smoke in the first tunnel 2 and help escape.

[0069] The ventilation and smoke exhaust mode three and the ventilation and smoke exhaust mode two are alternated back and forth, so that the entire first tunnel 2 can be ventilated under the alternating action of the tunnel ventilation and smoke exhaust unit to supply and exhaust air.

[0070] Ventilation and smoke exhaust mode four: the tunnel fan 101 rotates forward, the tunnel fan linkage air valve 102, the left and right line ventilation valves 105 and the second piston mechanical air valve 107 are opened, the first piston air valve 103, the second piston air valve 104 and the first piston mechanical air valve 106 are closed, and the air or smoke flows from the second tunnel 3 to the outside.

[0071] For the second tunnel 3, in the "ventilation and smoke exhaust mode 4", the air of the second tunnel 3 is powered by the tunnel fan 101 and is discharged to the outside through the second piston mechanical air valve 107, the second civil engineering air duct 109, the tunnel fan 101, the tunnel fan linkage air valve 102, the first piston air shaft 110 or the second piston air shaft 111. The air or smoke of the second tunnel 3 is discharged to the outside to meet the exhaust or smoke exhaust requirements.

[0072] Ventilation and smoke exhaust mode five: the tunnel fan 101 reverses, the tunnel fan linkage air valve 102, the left and right line ventilation valves 105 and the second piston mechanical air valve 107 are opened, the first piston air valve 103, the second piston air valve 104 and the first piston mechanical air valve 106 are closed, and the air flows from the outside to the second tunnel 3.

[0073] In "ventilation and smoke exhaust mode five", the second tunnel 3 is powered by the tunnel fan 101, and outdoor fresh air is delivered into the second tunnel 3 through the first piston air shaft 110 or the second piston air shaft 111, the tunnel fan linked air valve 102, the tunnel fan 101, the second civil engineering air duct 109, and the second piston mechanical air valve 107.

[0074] The ventilation and smoke exhaust mode four and the ventilation and smoke exhaust mode five are alternated back and forth, so that the entire second tunnel 3 can be ventilated under the alternating action of the tunnel ventilation and smoke exhaust unit to supply and exhaust air.

[0075] Ventilation and smoke exhaust mode six: the tunnel fan 101, the tunnel fan linkage air valve 102, the left and right line connected air valves 105, the first piston air valve 103, the second piston air valve 104, the first piston mechanical air valve 106 and the second piston mechanical air valve 107 are closed.

[0076] Further, the third spoiler wind control valve 202 and the fourth spoiler wind control valve 203 are opened, and the first spoiler wind control valve 204 and the second spoiler wind control valve 205 are closed:

[0077] The spoiler fan 201 is set to rotate forward, and the spoiler air is disturbed to form an airflow resistance in the first tunnel 2 from the fourth spoiler air control valve 203 to the third spoiler air control valve 202;

[0078] The turbulent air fan 201 is set to reverse, and the turbulent air forms an airflow resistance in the first tunnel 2 in the direction from the third turbulent air control valve 202 to the fourth turbulent air control valve 203 .

[0079] Further, the first spoiler wind control valve 204 and the second spoiler wind control valve 205 are opened, and the third spoiler wind control valve 202 and the fourth spoiler wind control valve 203 are closed:

[0080] The spoiler fan 201 is set to rotate forward, and the spoiler air is disturbed to form an airflow resistance in the second tunnel 3 from the second spoiler air control valve 205 to the first spoiler air control valve 204;

[0081] The turbulent air fan 201 is set to reverse, and the turbulent air forms an airflow resistance in the second tunnel 3 from the first turbulent air control valve 204 to the second turbulent air control valve 205 .

[0082] Exemplarily, the equipment operation of each spoiler unit includes five modes:

[0083] Turbulence mode 1: the turbulence fan 201, the third turbulence control valve 202, the fourth turbulence control valve 203, the first turbulence control valve 204 and the second turbulence control valve 205 are all closed.

[0084] Turbulence mode 2: the turbulence fan 201 rotates forward, the first turbulence control valve 204 and the second turbulence control valve 205 are closed, the third turbulence control valve 202 and the fourth turbulence control valve 203 are opened at the first gear, and the airflow is sucked in by the third turbulence control valve 202 and ejected by the fourth turbulence control valve 203. In this mode, the resistance of the airflow in the tunnel from the fourth turbulence control valve 203 to the third turbulence control valve 202 will be increased.

[0085] Turbulence mode 3: the turbulence fan 201 is reversed, the first turbulence control valve 204 and the second turbulence control valve 205 are closed, the third turbulence control valve 202 and the fourth turbulence control valve 203 are opened at the second gear, the airflow is ejected from the third turbulence control valve 202 and sucked in by the fourth turbulence control valve 203. In this mode, the resistance of the airflow in the tunnel from the third turbulence control valve 202 to the fourth turbulence control valve 203 will be increased.

[0086] Turbulence mode 4: the turbulence fan 201 rotates forward, the third turbulence control valve 202 and the fourth turbulence control valve 203 are closed, the first turbulence control valve 204 and the second turbulence control valve 205 are opened at the first gear, and the airflow is sucked in by the first turbulence control valve 204 and ejected by the second turbulence control valve 205. In this mode, the resistance of the airflow in the tunnel from the second turbulence control valve 205 to the first turbulence control valve 204 will be increased.

[0087] Turbulence mode 5: the turbulence fan 201 is reversed, the third turbulence control valve 202 and the fourth turbulence control valve 203 are closed, the first turbulence control valve 204 and the second turbulence control valve 205 are opened at the second gear, and the airflow is ejected from the first turbulence control valve 204 and sucked in by the second turbulence control valve 205. In this mode, the resistance of the airflow in the tunnel from the first turbulence control valve 204 to the second turbulence control valve 205 will be increased.

[0088] The tunnel fan 101 realizes ventilation and smoke exhaust for the first tunnel 2 or the second tunnel 3 by combining the forward and reverse rotation with the switch state of the air valve in the tunnel ventilation and smoke exhaust unit.

[0089] Exemplarily, when the train 4 is operating normally in the tunnel, the ventilation and smoke exhaust units of the entire tunnel of a line execute "ventilation and smoke exhaust mode 1", and the spoiler units of the entire line execute "spoiler mode 1". The piston wind airflow of the first tunnel 2 is connected to the outdoor atmosphere through the first piston mechanical air valve 106, the first civil engineering air duct 108, the first piston air valve 103 and the first piston air shaft 110 for air exchange; the piston wind airflow of the second tunnel 3 is connected to the outdoor atmosphere through the second piston mechanical air valve 107, the second civil engineering air duct 109, the second piston air valve 104 and the second piston air shaft 111 for air exchange. The spoiler fan 201 and each spoiler air valve are closed to prevent the piston wind from flowing in the first tunnel 2 and the second tunnel 3, thereby weakening the piston wind effect.

[0090] When the train 4 is out of service and adopts fan ventilation, the ventilation and smoke exhaust units of the tunnels of the entire line adopt the sequence of "ventilation and smoke exhaust mode 2", "ventilation and smoke exhaust mode 4", "ventilation and smoke exhaust mode 3" and "ventilation and smoke exhaust mode 5" to be repeated alternately along the line direction, and the spoiler units of the entire line implement "spoiler mode 1". For example, the ventilation and smoke exhaust units on the left side of a station implement ventilation and smoke exhaust mode 2, and ventilation and smoke exhaust mode 4 on the right side, and the ventilation and smoke exhaust mode 3 on the left side of the next station, and ventilation and smoke exhaust mode 5 on the right side, because ventilation and smoke exhaust mode 2 and ventilation and smoke exhaust mode 3 are used as a group to ventilate one tunnel, and ventilation and smoke exhaust mode 4 and ventilation and smoke exhaust mode 5 are used to ventilate another tunnel, so that the ventilation of the entire line is more uniform by alternating.

[0091] When a fire occurs in the first tunnel 2 between two stations and people evacuate to the front station and control the smoke flow to the rear station, the tunnel ventilation and smoke exhaust unit adjacent to the fire section at the rear station executes "ventilation and smoke exhaust mode 2", the tunnel ventilation and smoke exhaust unit at the rear station far away from the fire section executes "ventilation and smoke exhaust mode 6", the tunnel ventilation and smoke exhaust unit adjacent to the fire section at the front station executes "ventilation and smoke exhaust mode 3", and the tunnel ventilation and smoke exhaust unit at the front station far away from the fire section executes "ventilation and smoke exhaust mode 6". Since passengers will pass through the spoiler unit adjacent to the fire section at the front station during the evacuation to the platform of the front station, in order to prevent high-speed airflow from having an adverse effect on the evacuation of passengers, the spoiler unit adjacent to the fire section at the front station executes "spoiler mode 1", and the spoiler unit at the front station far away from the fire section, the spoiler unit adjacent to the fire section at the rear station, and the spoiler unit at the rear station far away from the fire section all execute "spoiler mode 3".

[0092] When a fire occurs in the first tunnel 2 between two stations and people are evacuated to the rear station and smoke is controlled to flow to the front station, the tunnel ventilation and smoke exhaust unit adjacent to the fire section at the rear station executes "ventilation and smoke exhaust mode three", the tunnel ventilation and smoke exhaust unit at the rear station far away from the fire section executes "ventilation and smoke exhaust mode six", the tunnel ventilation and smoke exhaust unit adjacent to the fire section at the front station executes "ventilation and smoke exhaust mode two", and the tunnel ventilation and smoke exhaust unit at the front station far away from the fire section executes "ventilation and smoke exhaust mode six". Since passengers will pass through the spoiler unit adjacent to the fire section at the front station during the evacuation to the platform of the rear station, in order to prevent high-speed airflow from having an adverse effect on the evacuation of passengers, the spoiler unit adjacent to the fire section at the rear station executes "spoiler mode one", and the spoiler unit at the rear station far away from the fire section, the spoiler unit adjacent to the fire section at the front station, and the spoiler unit at the front station far away from the fire section all execute "spoiler mode two".

[0093] When a fire occurs in the second tunnel 3 between two stations and people evacuate to the front station and control the smoke flow to the rear station, the tunnel ventilation and smoke exhaust unit adjacent to the fire section at the rear station executes "ventilation and smoke exhaust mode four", the tunnel ventilation and smoke exhaust unit at the rear station far away from the fire section executes "ventilation and smoke exhaust mode six", the tunnel ventilation and smoke exhaust unit adjacent to the fire section at the front station executes "ventilation and smoke exhaust mode five", and the tunnel ventilation and smoke exhaust unit at the front station far away from the fire section executes "ventilation and smoke exhaust mode six". Since passengers will pass through the spoiler unit adjacent to the fire section at the front station during the evacuation to the platform of the front station, in order to prevent high-speed airflow from having an adverse effect on the evacuation of passengers, the spoiler unit adjacent to the fire section at the front station executes "spoiler mode one", and the spoiler unit at the front station far away from the fire section, the spoiler unit adjacent to the fire section at the rear station, and the spoiler unit at the rear station far away from the fire section all execute "spoiler mode five".

[0094] When a fire occurs in the second tunnel 3 between two stations and people are evacuated to the rear station and smoke is controlled to flow to the front station, the tunnel ventilation and smoke exhaust unit adjacent to the fire section at the rear station executes "ventilation and smoke exhaust mode five", the tunnel ventilation and smoke exhaust unit at the rear station far away from the fire section executes "ventilation and smoke exhaust mode six", the tunnel ventilation and smoke exhaust unit adjacent to the fire section at the front station executes "ventilation and smoke exhaust mode four", and the tunnel ventilation and smoke exhaust unit at the front station far away from the fire section executes "ventilation and smoke exhaust mode six". Since passengers will pass through the spoiler unit adjacent to the fire section at the front station during the evacuation to the platform of the rear station, in order to prevent high-speed airflow from having an adverse effect on the evacuation of passengers, the spoiler unit adjacent to the fire section at the rear station executes "spoiler mode one", and the spoiler unit at the rear station far away from the fire section, the spoiler unit adjacent to the fire section at the front station, and the spoiler unit at the front station far away from the fire section all execute "spoiler mode four".

[0095] The tunnel ventilation and smoke exhaust unit meets the normal and fire ventilation and smoke exhaust requirements of the subway tunnel through different switch combinations of air valves. The spoiler unit creates local resistance through the spoiler wind control valve switch to meet the function of increasing the resistance of the non-fire interval during a fire, thereby achieving the purpose of the tunnel fan air volume mainly acting on the fire interval under the premise of controlling the smoke from entering the non-fire interval. The present invention can reduce one set of TVF and supporting silencers, diffusers, air valves and other equipment at each end of each station. The spoiler unit is arranged in the lower interlayer of the wind chamber connected to the top air duct, so that the width of the entire station ancillary building can be reduced by about 6m and the area can be reduced by about 150m 2 The above can greatly reduce the scale of civil construction and investment of each station and reduce costs.

[0096] It should be noted that the terms used in the present invention are only for describing specific embodiments, rather than limiting the scope of the present application. As shown in the present specification, unless the context clearly indicates an exception, the words "one", "a", "a kind of" and / or "the" do not specifically refer to the singular, but may also include the plural. The terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method or device. In the absence of more restrictions, the elements defined by the sentence "include one..." do not exclude the presence of other identical elements in the process, method or device including the elements.

[0097] It should also be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present invention.

Claims

1. A turbulent tunnel ventilation system, characterized in that: The system comprises: a tunnel ventilation and smoke exhaust unit and at least one spoiler unit; The tunnel ventilation and smoke exhaust unit is arranged in the tunnel between the platforms, and the spoiler unit is arranged between the tunnel ventilation and smoke exhaust unit and the platform, and close to the platform end; Each of the tunnel ventilation and smoke exhaust units comprises a tunnel fan (101), two piston air ducts, and a plurality of air valves, and the tunnel fan (101) is controlled by opening and closing each air valve to ventilate and exhaust smoke for a corresponding tunnel on one side through each piston air duct; One end of the first piston air shaft (110) is exposed on the ground and communicates with the outdoor atmosphere, and the other end is connected to the first piston air valve (103); one end of the second piston air shaft (111) is exposed on the ground and communicates with the outdoor atmosphere, and the other end is connected to the second piston air valve (104); One end of the tunnel fan linkage air valve (102) is connected to the tunnel fan (101), and the other end is connected to the first piston air shaft (110) or the second piston air shaft (111); The other end of the first piston air valve (103) is connected to the first piston mechanical air valve (106) via the first civil engineering air duct (108); the other end of the second piston air valve (104) is connected to the second piston mechanical air valve (107) via the second civil engineering air duct (109); the first piston mechanical air valve (106) is arranged on the top plate or side wall of the first tunnel (2); the second piston mechanical air valve (107) is arranged on the top plate or side wall of the second tunnel (3); One end of the tunnel fan (101) away from the tunnel fan linkage air valve (102) is directly connected to the first civil engineering air duct (108), and is connected to the second civil engineering air duct (109) via the left and right line connecting air valves (105); or one end of the tunnel fan (101) away from the tunnel fan linkage air valve (102) is directly connected to the second civil engineering air duct (109), and is connected to the first civil engineering air duct (108) via the left and right line connecting air valves (105); Each of the spoiler units comprises a spoiler fan (201), two spoiler air ducts (206), and a plurality of spoiler air control valves, and controls the opening and closing of the spoiler air control valves to disturb the air so that the spoiler fan (201) provides spoiler air in a corresponding direction; A spoiler air duct (206) is respectively arranged at the spoiler fan (201) near the platform end and the spoiler air duct far from the platform end; a first spoiler air control valve (204) and a third spoiler air control valve (202) are respectively arranged on both sides of the platform far from the spoiler air duct (206) at the platform end, and a second spoiler air control valve (205) and a fourth spoiler air control valve (203) are respectively arranged on both sides of the platform near the spoiler air duct (206) at the platform end; the first spoiler air control valve (204) and the second spoiler air control valve (205) are arranged in the first tunnel (2), and the third spoiler air control valve (202) and the fourth spoiler air control valve (203) are arranged in the second tunnel (3).

2. A spoiler-type tunnel ventilation system according to claim 1, characterized in that: A first spoiler air control valve (204), a third spoiler air control valve (202), a second spoiler air control valve (205) and a fourth spoiler air control valve (203) are provided, all of which have multiple gears.

3. A method for controlling spoiler-type tunnel ventilation, using a spoiler-type tunnel ventilation system according to claim 1, characterized in that: Open the tunnel fan linkage air valve (102) and the first piston mechanical air valve (106), and close the first piston air valve (103), the second piston air valve (104), the left and right line linkage air valves (105), and the second piston mechanical air valve (107): The tunnel fan (101) is set to rotate forward, and the air in the tunnel where the first piston mechanical air valve (106) is located flows to the outside through the first civil engineering air duct (108); The tunnel fan (101) is set to reverse, and the air flows through the first civil engineering air duct (108) to the tunnel where the first piston mechanical air valve (106) is located.

4. A method for controlling spoiler-type tunnel ventilation, using a spoiler-type tunnel ventilation system according to claim 1, characterized in that: Open the tunnel fan linkage air valve (102), the left and right line air valves (105) and the second piston mechanical air valve (107), and close the first piston air valve (103), the second piston air valve (104) and the first piston mechanical air valve (106): The tunnel fan (101) is set to rotate forward, and the air in the tunnel where the second piston mechanical air valve (107) is located flows to the outside through the second civil engineering air duct (109); The tunnel fan (101) is set to reverse, and the air flows through the second civil engineering air duct (109) to the tunnel where the second piston mechanical air valve (107) is located.

5. A method for controlling spoiler-type tunnel ventilation, using a spoiler-type tunnel ventilation system according to claim 1, characterized in that: The third spoiler air control valve (202) and the fourth spoiler air control valve (203) are opened, and the first spoiler air control valve (204) and the second spoiler air control valve (205) are closed: The turbulent air fan (201) is set to rotate forward to turbulent air to form air flow resistance in the first tunnel (2) in a direction from the fourth turbulent air control valve (203) to the third turbulent air control valve (202); The turbulent air fan (201) is set to rotate in reverse, turbulent air forms air flow resistance in the first tunnel (2) in a direction from the third turbulent air control valve (202) to the fourth turbulent air control valve (203).

6. A method for controlling spoiler-type tunnel ventilation, using a spoiler-type tunnel ventilation system according to claim 1, characterized in that: The first spoiler air control valve (204) and the second spoiler air control valve (205) are opened, and the third spoiler air control valve (202) and the fourth spoiler air control valve (203) are closed: The turbulent air fan (201) is set to rotate forward to turbulent air to form air flow resistance in the second tunnel (3) in a direction from the second turbulent air control valve (205) to the first turbulent air control valve (204); The turbulent air fan (201) is set to rotate in reverse to turbulent air and form air flow resistance in the second tunnel (3) in a direction from the first turbulent air control valve (204) to the second turbulent air control valve (205).

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