Integrated purification device for tunnel ventilation

Abstract

The utility model discloses a purification integrated device for tunnel ventilation, which comprises a ventilation sleeve, one side of the ventilation sleeve is fixedly connected with a primary filter, the other side of the ventilation sleeve is fixedly connected with a reducing pipe, and one side of the reducing pipe far away from the ventilation sleeve is fixedly provided with a jet fan; two ventilation plates are arranged in the ventilation sleeve, the two ventilation plates are symmetrically arranged along the central axis of the ventilation sleeve, an inner side air channel is formed between the two ventilation plates, and an outer side air channel is formed between the ventilation plates and the ventilation sleeve. The device can effectively promote mixing of purified airflow and high-pollution air, and is favorable for controlling the concentration of tunnel pollutants and saving the operation cost.

Description

Technical Field

[0001] The utility model relates to the field of urban road tunnel ventilation, in particular to an integrated purification device for tunnel ventilation. Background Art

[0002] At present, with the rapid development of my country's economic level, the construction scale of urban highway land or underwater tunnels is increasing. Many urban tunnels are located in densely populated areas. Due to the limitations of land use status, landscape coordination and other factors, it is difficult to have suitable conditions to excavate ventilation shafts in the middle of the tunnel. Underwater tunnels are subject to navigation restrictions, and ventilation shafts cannot be set up in the middle section of the river, resulting in the closed section being too long, ventilation conditions being restricted, pollutants easily exceeding the standard, and endangering the environment of residents around the tunnel exit.

[0003] Based on this, under unfavorable ventilation conditions, reasonable air purification measures are the way to reduce pollution and improve air quality. However, the joint control of tunnel ventilation and purification is currently in its initial stage, lacking effective integrated ventilation and purification design methods and operation control strategies. Utility Model Content

[0004] In view of the deficiencies of the prior art in the above-mentioned background technology, the purpose of the utility model is to provide an integrated purification device for tunnel ventilation, which can effectively promote the mixing of purified airflow with highly polluted air, which is beneficial to the control of tunnel pollutant concentration and saving of operating costs.

[0005] To achieve the above purpose, the solution of the utility model is:

[0006] A purification integrated device for tunnel ventilation, comprising a ventilation sleeve, a primary filter is connected and fixed to one side of the ventilation sleeve, a tapered pipe is connected and fixed to the other side of the ventilation sleeve, and a jet fan is fixedly installed on the side of the tapered pipe away from the ventilation sleeve;

[0007] Two ventilation plates are arranged in the ventilation sleeve, and the two ventilation plates are symmetrically arranged along the central axis of the ventilation sleeve. An inner air duct is formed between the two ventilation plates, and an outer air duct is formed between the ventilation plate and the ventilation sleeve.

[0008] As a further solution of the utility model, a louver air valve is installed at one end of the ventilation plate close to the primary filter, and the louver air valve fits the inner wall of the ventilation sleeve and is fixedly connected.

[0009] As a further solution of the utility model, a dust collector and a filter are fixedly installed in the inner air duct, the dust collector is arranged close to the louver air valve, and the filter is arranged away from the louver air valve and on the other side of the dust collector.

[0010] As a further solution of the present invention, the filter is a NO2 filter.

[0011] As a further solution of the utility model, the jet fan is a suction fan.

[0012] As a further solution of the utility model, a switch is provided on the shutter air valve.

[0013] As a further solution of the utility model, the dust collector is an electrostatic dust collector.

[0014] As a further solution of the utility model, the NO2 filter is composed of multiple layers of activated carbon, and the activated carbon is arranged in an M-shaped pleated shape.

[0015] As a further solution of the utility model, the primary filter, jet fan, shutter air valve, dust collector and filter can all be detachably arranged.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model realizes the joint operation of tunnel ventilation and purification by arranging devices such as ventilation sleeves and tapered pipes. When in use, the airflow preferentially enters the primary filter for preliminary treatment, and then the louver air valve is controlled by the switch to allow the airflow to enter the outer air duct or the inner air duct. When the concentration of particulate matter in the air is high, it enters the inner air duct. At this time, the louver air valve of the outer air duct is closed, and the airflow enters the tapered pipe after further treatment through the dust collector and the filter. When the concentration is low, it directly enters the tapered pipe through the outer air duct. At this time, the louver air valve of the inner air duct is closed, and finally enters the air suction port of the jet fan. Such an arrangement can effectively promote the mixing of purified airflow and highly polluted air, which is beneficial to the control of tunnel pollutant concentration and saving of operating costs. The device is flexible in control, with outstanding energy-saving benefits, reduces the space occupied by the tunnel, and saves construction and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] In the figure: 1-ventilation sleeve; 2-primary filter; 3-converging pipe; 4-jet fan; 5-ventilation plate; 6-inner air duct; 7-outer air duct; 8-shutter air valve; 9-dust collector; 10-filter. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Please refer to the attached Figure 1 A purification integrated device for tunnel ventilation includes a ventilation sleeve 1, a primary filter 2 is connected and fixed to one side of the ventilation sleeve 1, a tapered pipe 3 is connected and fixed to the other side of the ventilation sleeve 1, a jet fan 4 is fixedly installed on the side of the tapered pipe 3 away from the ventilation sleeve 1, and the jet fan 4 is a suction fan.

[0024] Two ventilation plates 5 are provided in the ventilation sleeve 1 , and the two ventilation plates 5 are symmetrically arranged along the central axis of the ventilation sleeve 1 , an inner air duct 6 is formed between the two ventilation plates 5 , and an outer air duct 7 is formed between the ventilation plate 5 and the ventilation sleeve 1 .

[0025] A shutter air valve 8 is installed at one end of the ventilation plate 5 close to the primary filter 2, and the shutter air valve 8 is attached to the inner wall of the ventilation sleeve 1 and fixedly connected. A switch is arranged on the shutter air valve 8. The shutter air valve 8 is used to control the air flow to enter the inner air duct 6 or the outer air duct 7.

[0026] A dust collector 9 and a filter 10 are fixedly arranged in the inner air duct 6. The filter 10 is a NO2 filter. The NO2 filter is composed of multiple layers of activated carbon, and the activated carbon is arranged in an M-shaped fold. It is used to treat fine particles and NO2 in the tunnel air. The dust collector 9 is arranged close to the shutter air valve 8. The dust collector 9 is an electrostatic dust collector. The dust collector 9 and the filter 10 are used to treat fine particles and NO2 in the tunnel air. The filter 10 is far away from the shutter air valve 8 and is arranged on the other side of the dust collector 9. When in use, when the concentration of particulate matter in the air is high, it will enter the inner air duct 6. At this time, the louver air valve 8 of the outer air duct 7 is closed, and it will enter the tapered pipe 3 after further processing through the dust collector 9 and the filter 10. When the concentration is low, it will directly enter the tapered pipe 3 through the outer air duct 7. At this time, the louver air valve 8 of the inner air duct 6 is closed, and finally enter the air intake of the jet fan 4. Such a setting can effectively promote the mixing of purified airflow and highly polluted air, which is beneficial to the control of tunnel pollutant concentration and saving of operating costs. The device has flexible control and outstanding energy-saving benefits, reduces tunnel space occupancy, and saves construction and maintenance costs.

[0027] The primary filter 2, jet fan 4, shutter air valve 8, dust collector 9 and filter 10 can all be detachably arranged.

[0028] Finally, it should be noted that the dust collector 9, filter 10 and other components involved in the utility model are all universal standard parts or components known to technical personnel in this field, and their structures and principles are all known to technical personnel in this field through technical manuals or through conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and compatible controllers and power supplies, are connected through wires. The specific connection means should refer to the working principle of the utility model. The electrical connection between each electrical component is completed in a sequential working order, and the detailed connection means are all well-known technologies in the field.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A purification integrated device for tunnel ventilation, characterized in that: It comprises a ventilation sleeve (1), a primary filter (2) being connected and fixed to one side of the ventilation sleeve (1), a reducer (3) being connected and fixed to the other side of the ventilation sleeve (1), and a jet fan (4) being fixedly installed on the side of the reducer (3) away from the ventilation sleeve (1); Two ventilation plates (5) are arranged inside the ventilation sleeve (1), and the two ventilation plates (5) are symmetrically arranged along the central axis of the ventilation sleeve (1), an inner air duct (6) is formed between the two ventilation plates (5), and an outer air duct (7) is formed between the ventilation plate (5) and the ventilation sleeve (1).

2. The integrated purification device for tunnel ventilation according to claim 1, characterized in that: A shutter air valve (8) is installed at one end of the ventilation plate (5) close to the primary filter (2), and the shutter air valve (8) fits against the inner wall of the ventilation sleeve (1) and is fixedly connected.

3. The integrated purification device for tunnel ventilation according to claim 2, characterized in that: A dust collector (9) and a filter (10) are fixedly arranged in the inner air duct (6); the dust collector (9) is arranged close to the shutter air valve (8), and the filter (10) is arranged away from the shutter air valve (8) and located on the other side of the dust collector (9).

4. The integrated purification device for tunnel ventilation according to claim 3, characterized in that: The filter (10) is a NO2 filter.

5. The integrated purification device for tunnel ventilation according to claim 1, characterized in that: The jet fan (4) is a suction-type fan.

6. The integrated purification device for tunnel ventilation according to claim 3, characterized in that: The shutter air valve (8) is provided with a switch.

7. The integrated purification device for tunnel ventilation according to claim 3, characterized in that: The dust collector (9) is an electrostatic dust collector.

8. The integrated purification device for tunnel ventilation according to claim 4, characterized in that: The NO2 filter is composed of multiple layers of activated carbon, and the activated carbon is arranged in an M-shaped fold shape.

9. The integrated purification device for tunnel ventilation according to claim 3, characterized in that: The primary filter (2), jet fan (4), shutter air valve (8), dust collector (9) and filter (10) can all be detachably arranged.

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