Independent pressurized air supply system for tunnel transverse galleries and air supply method
An air supply system and tunnel technology, which is applied in mine/tunnel ventilation, earthwork drilling, safety devices, etc., can solve problems such as the adverse effects of personnel evacuation safety, prevent smoke from entering the tunnel horizontal hole, and have strong engineering implementation and The effect of simplifying the pressurized air supply device
Pending Publication Date: 2017-07-07
BEIJING JIAOKE HIGHWAY SURVEYING DESIGN & RES INST +1
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Problems solved by technology
[0003] The above-mentioned tunnel layout mainly has the following problems: when a fire or other accident occurs in a certain tunnel, a large amount of smoke in the accident tunnel will flow into the non-accident tunnel through the tunnel cross hole, which will adversely affect the safety of evacuation
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[0032] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0033] The invention relates to an independent pressurized air supply device for a tunnel horizontal tunnel, which is an independent pressurized air supply device proposed for the lack of pressurized air supply devices for road tunnels and pedestrian tunnels or the high cost of the system. device. The tunnel independent pressurized air supply device includes reversible fans, electric air valves, pressure detection sensors and other equipment. The reversible fan is connected with the electric air valve and linked with the fire detection system to form an independent pres...
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The invention provides an independent pressurized air supply system for tunnel transverse galleries and an air supply method. The independent pressurized air supply system comprises a fire detection system, a PLC controller and pressurized air supply units corresponding to various tunnel transverse galleries, wherein the PLC controller is connected with the fire detection system and the pressurized air supply units separately. The independent pressurized air supply system has the advantages that the thought that the adjacent galleries of a highway are security areas for each other is reflected in a ventilation and smoke control device; non-accident tunnel wind pickup is achieved in a fire, so that pressurized air supply is carried out on the tunnel transverse galleries, positive pressure of the tunnel transverse galleries on an accident tunnel is ensured, pressurized air supply of the tunnel transverse galleries is achieved and smoke is prevented from entering the tunnel transverse galleries from the accident tunnel. Meanwhile, an air curtain can be further formed on a security door through an air valve to prevent the smoke from entering the tunnel transverse galleries from the accident tunnel, therefore, a security guarantee is provided for personnel evacuation and rescue. The system is combined with engineering practice of a highway tunnel, so that the pressurized air supply device is simplified, and the independent pressurized air supply system is flexible in arrangement, small in engineering scale and high in engineering implementation.
Description
technical field [0001] The invention belongs to the technical field of tunnel air supply, and in particular relates to an independent pressurized air supply system and an air supply method for tunnel transverse tunnels. Background technique [0002] Currently, common tunnel layouts such as figure 1 As shown, including the first tunnel 12 and the second tunnel 13 arranged in parallel, the first tunnel and the second tunnel are both main tunnels for pedestrians and vehicles; at intervals, between the first tunnel and the second tunnel A tunnel horizontal hole 14 is provided, and the tunnel horizontal hole 14 includes a pedestrian horizontal hole, a vehicle horizontal hole, etc., and is an evacuation passage for realizing personnel escape. For example, when a fire accident occurs in the second tunnel, people in the second tunnel can enter the first tunnel through the tunnel cross hole. [0003] The above-mentioned tunnel layout mainly has the following problems: when a fire o...
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IPC IPC(8): E21F1/00E21F5/00
CPCE21F1/00E21F5/00
Inventor 杨秀军张昊邢燕颖石志刚金蕊顾思思汤召志
Owner BEIJING JIAOKE HIGHWAY SURVEYING DESIGN & RES INST
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