A subway tunnel roadbed sweeping and dust removal device

Abstract

A subway tunnel roadbed purge dust removal device is composed of a fan and pipeline distribution, a dust collector, an electric control cabinet, a base, a dust suction duct and a purge group. The fan and pipeline distribution, the dust collector and the electric control cabinet are fixedly arranged on the base, and a purge group is fixedly arranged under the base; the fan and pipeline distribution is composed of an air filter, a primary air path distributor, a high-pressure fan, a secondary air path distributor and an air duct; the purge group is composed of a side wind knife, a bracket, a sewage suction port, a nozzle group and a front wind knife. The side wind knife includes two wind knives arranged on the left and right sides, the front wind knife and the side wind knife form a U-shaped semi-enclosed structure, the nozzle group and the front wind knife are inclined inward to form a V shape, and the nozzle group is provided with a plurality of nozzle ports; the dust collector is composed of a centrifugal fan, an air outlet, a vibration motor, a filter cartridge, a sewage suction pipe and a dust collection drawer. The purge dust removal device is a non-contact dust removal, which is intelligent in application, simple and quick in operation, high in cleaning efficiency and good in cleaning effect.

Description

Technical field:

[0001] The invention relates to the technical field of subway tunnels, in particular to the technical field of energy-saving, environmentally friendly and clean subway tunnels, and specifically to a subway tunnel ballast bed blowing and dust removal device. Background technology:

[0002] At present, the domestic urban rail transit, especially the subway transit, is quite developed. However, due to the piston effect of the subway vehicles, some dust is brought up in the tunnel, which makes the lighting and traffic lights in the tunnel dim, the camera shooting effect worse, and the electromechanical equipment is more prone to aging and failure. Many electrical equipment failures are caused by long-term accumulation of dust, such as local short circuit, leakage, and various failures caused by poor heat dissipation of heating elements. Dust is very harmful to the safe operation of electrical equipment. It is necessary to strengthen management and adopt effective technical means to reduce the harm of dust to a minimum, so as to ensure the safe operation of equipment and achieve good economic and social benefits.

[0003] In the semi-enclosed space of subway tunnels, the dust concentration at some subway stations exceeds the standard seriously. The respirable dust with a particle size of 0.2-5.0 ktm of metal particles such as iron generated by the friction between wheels and tracks will also cause harm to human health and must be removed. Therefore, in order to improve the subway operating environment and enhance equipment reliability and comfort, tunnels must be cleaned and maintained regularly.

[0004] For subway tunnels, the internal space is relatively closed and narrow, and manual cleaning is inefficient and difficult. Therefore, professional equipment must be used to clean the tunnel. Existing tunnel cleaning equipment has a common drawback that it is difficult to cope with the variable uneven road conditions of the roadbed in the tunnel, that is, the strict requirements on the flatness of the road surface in the tunnel. At present, there are three main methods for cleaning dust on the surface of objects: brush-sweeping dust removal, cleaning dust removal, and adsorption dust removal. For brush-sweeping dust removal, the brush-sweeping sweeper raises dust seriously during the cleaning process, and cannot remove the fine dust on the surface of the object, which is easy to cause secondary pollution; cleaning dust removal, because of the need to spray water, not only wastes water resources, but also the cold winter climate in the north is easy to freeze, affecting normal operation and the safety of subway vehicle operation; adsorption dust removal, for some dust solidified on the surface of the object, the cleaning effect is poor, and when there is a lot of dust, the secondary dust is mostly still serious and difficult to eliminate fundamentally, especially in the northern areas with strong winds and sand, this phenomenon is more prominent. The use of the above single methods for the cleaning effect of subway tunnels is not ideal. Therefore, in the cleaning work of subway tunnels, it is urgently necessary to provide a tunnel cleaning and dust removal equipment that can cope with the changeable road conditions in the tunnel and can overcome the technical difficulties encountered in the above-mentioned cleaning process.

[0005] At present, there are many studies on the cleaning technology of highway tunnels in China, but the cleaning of subway tunnels has not attracted much attention. Domestic research and application are in the initial stage. Since subway tunnels are equipped with various equipment, keeping the tunnel clean is very important for the normal use, maintenance and safe operation of equipment and subway trains. Summary of the invention:

[0006] In order to solve the problems existing in the background technology, the present invention provides a subway tunnel roadbed blowing and dust removal device, which is a non-contact dust removal device with intelligent application, simple and fast operation, high cleaning efficiency and good cleaning effect.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] The present invention provides a subway tunnel roadbed purging and dust removal device, which is arranged on a subway tunnel cleaning vehicle. The purging and dust removal device is composed of a fan and pipeline distribution, a vacuum cleaner, an electric control cabinet, a base, a vacuum duct and a purging group. The fan and pipeline distribution, the vacuum cleaner and the electric control cabinet are fixedly arranged on the base, and a purging group is fixedly arranged under the base. The purging group is composed of a side wind knife, a bracket, a sewage suction port, a nozzle group and a front wind knife. The side wind knife, the sewage suction port, the nozzle group and the front wind knife are installed on the bracket, and the bracket is provided with a leg, and the bracket is fixed under the base through the leg; the side wind knife includes two wind knives arranged on the left and right sides; the front wind knife and the side wind knife form a U-shaped semi-enclosed structure; the nozzle group is arranged in parallel with the front wind knife, and the two are tilted inward at the same time to form a V shape; the nozzle group is evenly provided with a number of nozzle openings. The fan and pipeline distribution are composed of an air filter, a primary air distributor, a high-pressure fan, a secondary air distributor and an air duct; the air filter is connected to the input end of the high-pressure fan, and the output end of the high-pressure fan is connected to the primary air distributor. The primary air distributor is directly connected to the side air knife and the front air knife through the air duct, and a secondary air distributor is also arranged between the primary air distributor connected to the nozzle group through the air duct and the air duct. The vacuum cleaner is composed of a centrifugal fan, an air outlet, a vibration motor, a filter cartridge, a dirt suction pipe and a dust collection drawer. The vacuum cleaner is provided with upper, middle and lower chambers separated by a grid plate. The upper chamber is provided with a centrifugal fan and an air outlet, the middle chamber is provided with a vibration motor, the lower chamber is provided with a filter cartridge, and the dust collection drawer is provided at the bottom of the vacuum cleaner. A dirt suction pipe is provided on the outer wall and the lower part of the vacuum cleaner. One end of the dirt suction pipe passes through the vacuum cleaner and is connected to the filter cartridge. The other end of the dirt suction pipe is connected to the upper end of the dust suction air duct, and the lower end of the dust suction air duct is connected to the dirt suction port. The electric control cabinet is connected to the high-pressure fan, the centrifugal fan and the vibration motor through a line.

[0009] The bracket is provided with four supporting legs, and the four supporting legs are welded to the bottom of the base.

[0010] The sewage suction port is a flat trumpet sewage suction port.

[0011] There are two suction ports, two dust suction ducts, and two suction ducts are symmetrically arranged on the outer wall and the lower part of the vacuum cleaner. The upper ends of the two dust suction ducts are respectively connected to the two suction ducts, and the lower ends are respectively connected to the two suction ports.

[0012] The distance between the two wind knives on the left and right sides of the side wind knife is consistent with the spacing between the two tracks.

[0013] The nozzle group is evenly provided with 7 nozzle openings.

[0014] The purge group may also be provided with an up and down movement adjustment mechanism and an angle adjustment mechanism.

[0015] The air ducts connected to the front air knife are arranged in two pieces, and the two side air knives are each connected to an air duct.

[0016] The number of air ducts connected to the secondary air duct distributor is determined according to the number of nozzle openings arranged under the nozzle group.

[0017] The upper chamber of the vacuum cleaner is provided with two air outlets.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention is composed of a purge system, a dirt suction system, a dust collection system, a power and control system. The entire system is controlled by intelligent frequency conversion to complete the automatic control of various cleaning functions such as purge, dirt suction, dirt discharge, and dust collection. Therefore, the present invention has intelligent application, high degree of automation, simple and fast operation, high cleaning efficiency, good cleaning effect, etc.

[0020] 2. The present invention does not need to spray water during use, thus saving water resources. Since there is no need for brushing and contact dust removal, this non-contact dust removal method relying on airflow can well adapt to the uneven working conditions of subway tunnels. Therefore, the present invention solves the problem of general sweepers wasting water resources by spraying water during the cleaning process and the difficulty of operation in the north in winter due to ice.

[0021] 3. As an important component of a subway tunnel cleaning vehicle, the present invention uses the U-shaped wind curtain formed by the wind knives on the front and both sides and the nozzle group to surround and seal the rolled-up dust and dirt and roll them into the suction port, and then uses the negative pressure generated by the vacuum cleaner to suck away the dust and dirt swept up, basically eliminating the pollution of flying dust during the sweeping process. Finally, the gas and dust and dirt are separated by filtration in a closed space, and the purified air is discharged, thereby solving the secondary pollution of dust caused by the cleaning process, and more effectively cleaning the dust and dirt on the subway tunnel roadbed. Therefore, the present invention can participate in the all-round cleaning of the subway tunnel, effectively solving the problems that the subway tunnel is difficult to clean, the road surface in the tunnel is uneven, and the general cleaning vehicle is difficult to walk, and the dust flying with the airflow causes secondary pollution.

[0022] 4. The blowing group of the present invention is also provided with an adjustment mechanism capable of moving up and down and an angle adjustment mechanism, so as to blow the roadbed more comprehensively and further improve the cleaning effect. Description of the drawings:

[0023] Figure 1 It is a front view of the present invention;

[0024] Figure 2 It is a left side view of the present invention;

[0025] Figure 3 It is a schematic diagram of the main structure of the purge group of the present invention;

[0026] Figure 4 is a rear view structural schematic diagram of the purge group of the present invention;

[0027] Figure 5 It is a schematic diagram of the purge effect of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the fan and gas path distribution of the present invention;

[0029] Figure 7 It is a schematic structural diagram of the vacuum cleaner of the present invention;

[0030] Figure 8 It is a schematic diagram of the wind knife adjustment state of the present invention;

[0031] Fig. 9 It is a schematic cross-sectional view of the air knife of the present invention.

[0032] Reference numerals:

[0033] 1- fan and air distribution, 2- vacuum cleaner, 3- electric control cabinet, 4- base, 5- dust suction duct, 6- purge group.

[0034] 1.1-Air filter, 1.2-Primary air distributor, 1.3-High pressure fan, 1.4-Secondary air distributor, 1.5-Air duct.

[0035] 2.1- centrifugal fan, 2.2- air outlet, 2.3- vibration motor, 2.4- filter cartridge, 2.5- sewage suction pipe, 2.6- dust collection drawer.

[0036] 6.1- side wind knife, 6.2- bracket, 6.3- sewage suction port, 6.4- nozzle group, 6.5- front wind knife. Specific implementation method:

[0037] The present invention is further described below in conjunction with specific embodiments. Figures 1 to 9 The present invention provides a subway tunnel roadbed purging and dust removal device, which is arranged on a subway tunnel cleaning vehicle. The purging and dust removal device is composed of a fan and pipeline distribution 1, a dust collector 2, an electric control cabinet 3, a base 4, a dust suction air duct 5 and a purging group 6. The fan and pipeline distribution 1, the dust collector 2 and the electric control cabinet 3 are fixedly arranged on the base 4, and the purging group 6 is fixedly arranged under the base 4.

[0038] The blowing group 6 is composed of a side wind knife 6.1, a bracket 6.2, a sewage suction port 6.3, a nozzle group 6.4 and a front wind knife 6.5. The side wind knife 6.1, the sewage suction port 6.3, the nozzle group 6.4 and the front wind knife 6.5 are installed on the bracket 6.2. The bracket 6.2 is provided with 4 legs, and the 4 legs are welded to the bottom of the base 4. The sewage suction port 6.3 is a flat trumpet sewage suction port, and two are provided. The side wind knife 6.1 includes two wind knives arranged on the left and right sides, and the distance between the two wind knives is the same as the spacing between the two tracks. The front wind knife 6.5 and the side wind knife 6.1 form a U-shaped semi-enclosed structure, forming a U-shaped semi-enclosed wind curtain, which is responsible for blowing and intercepting the soil and dust on the left and right sides and the front of the blowing group; the nozzle group 6.4 is arranged in parallel with the front wind knife 6.5, and the two are tilted inward at the same time to form a V shape. The nozzle group 6.4 is evenly provided with a number of nozzle openings, and the embodiment is preferably 7 nozzle openings. The purge group 6 may also be provided with an up and down movement adjustment mechanism and an angle adjustment mechanism, such as Figure 8 As shown, loosen the nut at the end of the wind knife, and the wind knife can be rotated along the screw shaft to adjust the angle, and can slide up and down along the support leg at the same time.

[0039] The fan and pipeline distribution 1 is composed of an air filter 1.1, a primary air path distributor 1.2, a high-pressure fan 1.3, a secondary air path distributor 1.4 and an air duct 1.5. The air filter 1.1 is connected to the input end of the high-pressure fan 1.3, and the output end of the high-pressure fan 1.3 is connected to the primary air path distributor 1.2. The primary air path distributor 1.2 is directly connected to the side air knife 6.1 and the front air knife 6.5 through the air duct 1.5. Two air ducts 1.5 connected to the front air knife 6.5 are set, and each of the two side air knives 6.1 is connected to an air duct 1.5; a secondary air path distributor 1.4 is also set between the primary air path distributor 1.2 connected to the nozzle group 6.4 through the air duct 1.5 and the air duct 1.5. The number of air ducts 1.5 connected to the secondary air path distributor 1.4 is determined according to the number of nozzle openings set under the nozzle group 6.4.

[0040] The vacuum cleaner 2 comprises a centrifugal fan 2.1, an air outlet 2.2, a vibration motor 2.3, a filter cartridge 2.4, a sewage suction pipe 2.5 and a dust collection drawer 2.6. The vacuum cleaner 2 is provided with an upper chamber, a middle chamber and a lower chamber, and the three chambers are separated by a grille plate. The upper chamber is provided with a centrifugal fan 2.1 and two air outlets 2.2, the middle chamber is provided with a vibration motor 2.3, the lower chamber is provided with a filter cartridge 2.4, and the dust collection drawer 2.6 is arranged at the bottom of the vacuum cleaner 2. Two sewage suction pipes 2.5 are symmetrically arranged on the outer wall of the vacuum cleaner 2 and the lower part of the vacuum cleaner 2. One end of the sewage suction pipe 2.5 passes through the vacuum cleaner 2 and is connected with the filter cartridge 2.4, and the other ends of the two sewage suction pipes 2.5 are respectively connected with the upper ends of the two dust suction air ducts 5, and the lower ends of the two dust suction air ducts 5 are respectively connected with two sewage suction ports 6.3.

[0041] The high-pressure fan 1.3, the centrifugal fan 2.1 and the vibration motor 2.3 are connected to the electric control cabinet 3 through lines.

[0042] The present invention is installed at the front end of the subway tunnel cleaning vehicle as an important component to participate in the cleaning operation of the subway tunnel. Under the tunnel cleaning vehicle, the present invention is provided with a U-shaped semi-enclosed front wind knife 6.5 and two left and right wind knives of the side wind knife 6.1 around the sewage suction port 6.3, and the three wind knife devices form a wind curtain, and a row of high-pressure blowing nozzles is provided behind the sewage suction port 6.3. When the present invention is used, the operator can control the electric control cabinet 3 installed on the base 4 to send a command signal through the central control console on the subway tunnel cleaning vehicle to start the fan and pipeline distribution 1 and the dust collector 2 fixedly installed on the base 4. The high-pressure fan 1.3 of the fan and pipeline distribution 1 provides a group of high-pressure airflow filtered by the air filter 1.1 to the secondary air path distributor 1.4 and the air duct 1.5 to the nozzle group 6.4 through the primary air path distributor 1.2, and then another group of airflow is directly provided to the front wind knife 6.5 and the side wind knife 6.1 through the air duct 1.5 through the primary air path distributor 1.2. The V-shaped obtuse-angled counter-blowing formed by the two rows of airflows of the front wind knife 6.5 and the nozzle group 6.4 forms a V-shaped purge airflow on the subway roadbed, and the reverse vortex is strongly sucked by the flat trumpet-shaped sewage suction port 6.3 to roll up dust and dirt, and a reverse upward dust and dirt vortex is generated near the sewage suction port 6.3, which is then sucked into the sewage suction port 6.3. The two sewage suction ports 6.3 are connected to the two sewage suction pipes 2.5 through the two dust suction air ducts 5 respectively. The centrifugal fan 2.1 in the vacuum cleaner 2 sucks the swept dirt and dust into the chamber of the vacuum cleaner 2 through the sewage suction pipes 2.5. The sucked dust and dirt are then filtered through the filter cartridge 2.4. Under the continuous vibration of the vibration motor 2.3, the dirt and dust on the outer circumferential surface of the filter cartridge 2.4 fall into the dust collection drawer 2.6. The dust collection drawer 2.6 collects the dust and dirt, and the purified air filtered by the filter cartridge 2.4 is discharged outwardly from the air outlet 2.2.

[0043] The present invention is composed of a purging system, a sewage suction system, a dust collection system, a power and control system. The entire system is controlled by intelligent frequency conversion to complete the automatic control of various cleaning functions such as purging, sewage suction, sewage discharge and dust collection.

[0044] The present invention relates to the field of energy-saving and environmentally friendly cleaning of subway tunnels. As an important component of a subway tunnel cleaning vehicle, it is used in the non-contact blowing and dust removal cleaning industry of the roadbed in the subway tunnel. The present invention uses the U-shaped wind curtain formed by the wind knives on the front and both sides and the nozzle group 6.4 to surround and enclose the dust and soil that are rolled up and rolled into the suction port 6.3, and then uses the negative pressure generated by the vacuum cleaner 2 to suck away the dust and soil that are swept up, which basically eliminates the pollution caused by the flying dust during the blowing process. Finally, the separation of gas and dust and soil is completed by filtering in a closed space, and the dust collection drawer 2.6 collects dust and soil, and then discharges the purified air, thereby solving the secondary pollution of dust caused during the cleaning process, and more effectively cleaning the dust and soil of the roadbed of the subway tunnel. Therefore, the present invention can participate in the all-round cleaning of the subway tunnel, effectively solves the defects of the existing subway tunnel cleaning technical solutions, solves the problems that the subway tunnel is difficult to clean, the road surface in the tunnel is uneven, and the general cleaning vehicle is difficult to walk, and the general cleaning vehicle wastes water resources during the cleaning process, it is difficult to operate in the north in winter due to ice, and dust flies with the airflow to cause secondary pollution.

[0045] In summary, the above is only to illustrate some principles of the present invention, and is not intended to limit the present invention to the specific structure and applicable scope shown and described. Therefore, all corresponding modifications and equivalents that may be used belong to the patent scope applied for by the present invention.

Claims

1. A subway tunnel roadbed purging and dust removal device, which is arranged on a subway tunnel cleaning vehicle, and is characterized by: The purge dust removal device is composed of a fan and pipeline distribution (1), a dust collector (2), an electric control cabinet (3), a base (4), a dust suction air duct (5) and a purge group (6); the fan and pipeline distribution (1), the dust collector (2) and the electric control cabinet (3) are fixedly arranged on the base (4); and the purge group (6) is fixedly arranged below the base (4); The purge group (6) is composed of a side wind knife (6.1), a bracket (6.2), a sewage suction port (6.3), a nozzle group (6.4) and a front wind knife (6.5); the side wind knife (6.1), the sewage suction port (6.3), the nozzle group (6.4) and the front wind knife (6.5) are installed on the bracket (6.2); the bracket (6.2) is provided with a support leg, and the bracket (6.2) is fixed to the bottom of the base (4) through the support leg; the side wind knife (6.1) includes two wind knives arranged on the left and right sides; the front wind knife (6.5) and the side wind knife (6.1) form a U-shaped semi-enclosed structure; the nozzle group (6.4) and the front wind knife (6.5) are arranged in parallel, and the two are inclined inward at the same time to form a V shape; the nozzle group (6.4) is evenly provided with a plurality of nozzle openings; The fan and pipeline distribution (1) is composed of an air filter (1.1), a primary air path distributor (1.2), a high-pressure fan (1.3), a secondary air path distributor (1.4) and an air duct (1.5); the air filter (1.1) is connected to the input end of the high-pressure fan (1.3), and the output end of the high-pressure fan (1.3) is connected to the primary air path distributor (1.2); the primary air path distributor (1.2) is directly connected to the side air knife (6.1) and the front air knife (6.5) through the air duct (1.5), and a secondary air path distributor (1.4) is also provided between the primary air path distributor (1.2) connected to the nozzle group (6.4) through the air duct (1.5) and the air duct (1.5); The vacuum cleaner (2) is composed of a centrifugal fan (2.1), an air outlet (2.2), a vibration motor (2.3), a filter cartridge (2.4), a sewage suction pipe (2.5) and a dust collection drawer (2.6). The vacuum cleaner (2) is provided with an upper, middle and lower chamber separated by a grid plate. The upper chamber is provided with a centrifugal fan (2.1) and an air outlet (2.2), the middle chamber is provided with a vibration motor (2.3), the lower chamber is provided with a filter cartridge (2.4), the dust collection drawer (2.6) is arranged at the bottom of the vacuum cleaner (2), and a sewage suction pipe (2.5) is arranged on the outer wall of the vacuum cleaner (2) and the lower part of the vacuum cleaner (2). One end of the sewage suction pipe (2.5) passes through the vacuum cleaner (2) and is connected to the filter cartridge (2.4), the other end of the sewage suction pipe (2.5) is connected to the upper end of the dust suction air duct (5), and the lower end of the dust suction air duct (5) is connected to the sewage suction port (6.3); The electric control cabinet (3) is connected to the high-pressure fan (1.3), the centrifugal fan (2.1), and the vibration motor (2.3) through lines.

2. The subway tunnel ballast bed blowing and dust removal device according to claim 1 is characterized by: The bracket (6.2) is provided with four supporting legs, and the four supporting legs are welded to the bottom of the base (4).

3. The subway tunnel ballast bed blowing and dust removal device according to claim 1 is characterized in that: The sewage suction port (6.3) is a flat trumpet sewage suction port.

4. The subway tunnel ballast bed blowing and dust removal device according to claim 1 is characterized in that: Two sewage suction ports (6.3) are provided, two dust suction air ducts (5) are provided, and two sewage suction pipes (2.5) are symmetrically provided on the outer wall of the vacuum cleaner (2) and the lower part of the vacuum cleaner (2). The upper ends of the two dust suction air ducts (5) are respectively connected to the two sewage suction pipes (2.5), and the lower ends are respectively connected to the two sewage suction ports (6.3).

5. The subway tunnel ballast bed blowing and dust removal device according to claim 1 is characterized in that: The distance between the two wind knives on the left and right sides of the side wind knife (6.1) is the same as the distance between the two rails.

6. The subway tunnel ballast bed blowing and dust removal device according to claim 1 is characterized by: The nozzle group (6.4) is evenly provided with 7 nozzle openings.

7. The subway tunnel ballast bed blowing and dust removal device according to claim 1 is characterized by: The purge group (6) is provided with an up and down movement adjustment mechanism and an angle adjustment mechanism.

8. The subway tunnel ballast bed blowing and dust removal device according to claim 1 is characterized by: The air ducts (1.5) connected to the front air knife (6.5) are arranged in two pieces, and the two side air knives (6.1) are each connected to an air duct (1.5).

9. The subway tunnel ballast bed blowing and dust removal device according to claim 1 is characterized by: The number of air ducts (1.5) connected to the secondary air path distributor (1.4) is determined according to the number of nozzle openings provided under the nozzle group (6.4).

10. The subway tunnel ballast bed blowing and dust removal device according to claim 1 is characterized by: Two air outlets (2.2) are arranged in the upper chamber of the vacuum cleaner (2).

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