A duct ventilation system for tunnel cooling

Abstract

The application relates to the technical field of tunnel ventilation and safety, and discloses a pipeline ventilation system for tunnel cooling, which comprises a ventilation system, wherein the ventilation system comprises a ventilation pipeline and a ventilation device; a grille is arranged on the inner side of the ventilation pipeline close to the outlet position of the ventilation pipeline; a filter screen is arranged on the side of the grille close to the outlet of the ventilation system; a prewarning system is arranged in the ventilation system; and the ventilation device is arranged in the ventilation pipeline. When the filter screen is blocked, the wind energy on one side of the filter screen exceeds the rated value, the filter screen drives the grille to move to the inside of the ventilation system, until the grille contacts the inductive switch and sends a corresponding prewarning signal to the prewarning system, the prewarning system judges that the filter screen is blocked, and the adsorption dust removal device, the dust cleaning mechanism and the auxiliary ash removal assembly input stable working current to automatically clean and recycle the dust on the surface of the filter screen.

Description

Technical Field

[0001] This invention relates to the field of tunnel ventilation and safety technology, and more specifically to a duct ventilation system for tunnel cooling. Background Technology

[0002] In tunnel and underground engineering, ventilation systems are core equipment for ensuring construction safety and a safe operating environment. Especially in high-temperature, high-humidity, or dusty tunnel environments, the performance of the ventilation system directly affects the health of workers and the lifespan of the equipment. Traditional duct ventilation systems rely heavily on fixed filters to trap dust. However, over long-term operation, these filters are prone to clogging due to dust accumulation, leading to decreased ventilation efficiency, increased energy consumption, and localized temperature rises. Current technologies typically address filter clogging through periodic manual cleaning or simple mechanical vibration, but these methods have the following drawbacks:

[0003] 1. Inability to monitor filter clogging in real time: Traditional systems lack automated monitoring equipment, requiring manual disassembly or visual inspection of the filter periodically. This method has time intervals (e.g., daily or weekly checks) and cannot capture instantaneous changes in clogging (such as rapid clogging caused by a sudden influx of dust). Furthermore, traditional pressure sensors or airflow meters are easily affected by environmental factors such as temperature, humidity, and vibration within the tunnel, leading to data distortion. For example, high temperatures may cause sensor drift, and dust accumulation may affect its sensitivity.

[0004] Second, the process of cleaning clogged filters is too cumbersome: System cleaning requires shutting down the ventilation system and disassembling the filters, which interrupts ventilation in the tunnel and affects construction or operational safety. For example, stopping work in a mining tunnel for cleaning may delay production.

[0005] Therefore, there is an urgent need for a tunnel cooling duct ventilation system to solve the aforementioned technical problems. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a duct ventilation system for tunnel cooling to solve the problems existing in the background art.

[0007] This invention provides the following technical solution: a duct ventilation system for tunnel cooling, comprising:

[0008] A ventilation system, comprising a ventilation duct and a ventilation device, wherein a grille is installed on the inner side of the ventilation duct near its outlet, a filter screen is laid on the side of the grille near the outlet of the ventilation system, an early warning system is installed inside the ventilation system, and the ventilation device is installed inside the ventilation duct.

[0009] The dust removal mechanism is used to assist in cleaning and recycling dust from the surface of the filter screen. The dust removal mechanism is located in the middle of the grille. The ventilation duct is equipped with an adsorption dust removal device on its bottom surface near the grille to provide the dust removal mechanism with the adsorption force required for cleaning and recycling dust. Multiple sets of auxiliary dust removal components are arranged at equal intervals on the outer side of the grille to assist in cleaning dust from the surface of the filter screen.

[0010] The ventilation duct has an induction switch installed on its inner side near the grille. When the filter screen becomes clogged, the grille contacts the induction switch, which drives it to send a corresponding warning signal to the warning system. After receiving the warning signal, the warning system determines that the filter screen is clogged. The adsorption dust removal device, dust removal mechanism, and auxiliary dust removal components input a stable operating current to automatically clean and recycle the dust on the filter screen surface.

[0011] Furthermore, the adsorption dust removal device includes a set of output ends and a set of adsorption ends. The output ends of the adsorption dust removal device are equipped with an output pipe. The end of the output pipe away from the adsorption dust removal device is located inside the grid. The inside of the grid is provided with an air groove. On the outer side of the grid near the location of the air groove, multiple sets of dust removal spray guns are installed at equal intervals. One end of each set of dust removal spray guns extends into the inside of the air groove.

[0012] Furthermore, an adsorption tube is installed inside the adsorption end of the adsorption dust removal device, and the end of the adsorption tube away from the adsorption dust removal device is located inside the dust removal mechanism.

[0013] The dust removal mechanism includes a servo motor, which is installed in the middle area of ​​the side of the grille away from the filter screen. A transmission rod is installed at one end of the servo motor. An air chamber is opened inside the transmission rod, and a protective chamber is movably sleeved on the outer wall of the middle area of ​​the transmission rod.

[0014] Furthermore, one end of the adsorption tube is installed inside the protective chamber, and the adsorption dust removal device is input with a stable operating current. The adsorption end of the adsorption dust removal device generates adsorption force and transmits it to the inside of the protective chamber through the adsorption tube. The adsorbed air inside the protective chamber is transmitted to the air chamber of the transmission rod. An adsorption plate is installed at the end of the transmission rod away from the servo motor, and the adsorption plate has multiple sets of equidistant adsorption holes on the side near the filter screen. The adsorbed air in the air chamber of the transmission rod is transmitted to the inside of the adsorption plate and then to the surface of the filter screen through the adsorption holes.

[0015] Furthermore, the ventilation system has multiple sets of sliding grooves equidistantly arranged on the inner side near the filter screen. The auxiliary dust removal component includes multiple sets of sliders, which are sequentially fitted into each set of sliding grooves. The ends of the sliders away from the corresponding sliding grooves are all installed on the outer side of the grille. Each set of sliders has a telescopic plate installed on its outer side near the grille, and the outer side of each telescopic plate is adapted to the inner side of the corresponding sliding groove.

[0016] Furthermore, each set of sliders is equipped with a first spring on both sides, and a pressing rod is installed in the middle area of ​​both sides of the slider. A hollow column is sleeved on the outer side of the end of the pressing rod away from the corresponding slider position, and a permanent magnet is installed on the side of the pressing rod close to the hollow column. An electromagnetic block is installed on the inner side of the hollow column away from the pressing rod position. After a stable working current is input, the electromagnetic block will generate a magnetic effect with the permanent magnet. A second spring is installed on the inner side of the hollow column away from the electromagnetic block position.

[0017] The technical effects and advantages of this invention are as follows:

[0018] 1. When the filter screen becomes clogged, the wind energy on one side of the filter screen exceeds the rated value. The filter screen drives the grille to move into the ventilation system until the grille contacts the sensor switch and sends a corresponding warning signal to the warning system. The warning system determines that the filter screen is clogged, and the adsorption dust removal device, dust removal mechanism and auxiliary dust removal components input a stable working current to automatically clean and recycle the dust on the surface of the filter screen.

[0019] 2. When the present invention determines that the filter screen is clogged through the early warning system, the early warning system controls the electromagnetic block located on one side of the grille to input a stable working current and generate a magnetic attraction force with the corresponding permanent magnet block, thereby driving the first spring on one side of the grille to be in a compressed state. After the first spring is compressed to a critical value, the electromagnetic block on one side stops inputting current, the first spring on one side returns to its original state, and generates a corresponding spring force to drive the grille to vibrate, thereby accelerating the cleaning efficiency of the filter screen laid on the surface of the grille. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0022] Figure 3 for Figure 1 The diagram shows the overall structure of the grille.

[0023] Figure 4 for Figure 3 The diagram shows an enlarged view of the structure at point B.

[0024] Figure 5 for Figure 4 The diagram shows a side section of the hollow column.

[0025] Figure 6 for Figure 3 The diagram shows a partial structural diagram of the dust removal mechanism.

[0026] The attached figures are labeled as follows: 1. Ventilation system; 101. Ventilation duct; 102. Ventilation device; 103. Grille; 104. Telescopic plate; 105. Induction switch; 106. Dust removal spray gun; 2. Adsorption dust removal device; 201. Output pipe; 202. Adsorption pipe; 3. Dust removal mechanism; 301. Servo motor; 302. Transmission rod; 303. Protective chamber; 304. Adsorption plate; 305. Adsorption hole; 4. Auxiliary dust removal assembly; 401. First spring; 402. Hollow column; 403. Slider; 404. Electromagnetic block; 405. Permanent magnet block; 406. Second spring; 407. Extrusion rod. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The tunnel cooling duct ventilation system involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Reference Figure 1 As shown, the present invention provides a duct ventilation system for tunnel cooling, comprising:

[0029] Ventilation system 1, wherein ventilation system 1 includes ventilation duct 101 and ventilation device 102, a grille 103 is installed on the inner side of the ventilation duct 101 near its outlet, a filter screen is laid on the side of the grille 103 near the outlet of ventilation system 1, an early warning system is installed inside the ventilation system 1, and the ventilation device 102 is installed inside the ventilation duct 101.

[0030] The dust removal mechanism 3 is used to assist in cleaning and recycling dust on the surface of the filter screen. The dust removal mechanism 3 is located in the middle of the grille 103. The ventilation duct 101 is provided with an adsorption dust removal device 2 on the bottom surface near the grille 103 to provide the dust removal mechanism 3 with the adsorption force required for cleaning and recycling dust. Multiple sets of auxiliary dust removal components 4 are arranged equidistantly on the outer side of the grille 103 to assist in cleaning dust on the surface of the filter screen.

[0031] An induction switch 105 is installed on the inner side of the ventilation duct 101 near the grille 103. When the filter screen surface becomes clogged, the grille 103 contacts the induction switch 105, which drives it to send a corresponding warning signal to the warning system. After receiving the warning signal, the warning system determines that the filter screen is clogged. The adsorption dust removal device 2, the dust removal mechanism 3, and the auxiliary dust removal component 4 input a stable working current to automatically clean and recycle the dust on the filter screen surface.

[0032] In this embodiment of the application, the specific workflow of this part of the application embodiment is as follows: During the operation, if the surface of the filter screen becomes clogged, most of the wind energy outside the ventilation system 1 is blocked on one side of the filter screen. When the wind energy on one side of the filter screen exceeds the rated value, the filter screen drives the grille 103 to move into the ventilation system 1 until the grille 103 contacts the induction switch 105 and sends a corresponding warning signal to the warning system. The warning system determines that the filter screen is clogged, and the adsorption dust removal device 2, the dust removal mechanism 3, and the auxiliary dust removal component 4 input a stable working current to automatically clean and recycle the dust on the surface of the filter screen.

[0033] Reference Figures 1 to 3 As shown, the present invention provides a duct ventilation system for tunnel cooling. The adsorption dust removal device 2 includes a set of output ends and a set of adsorption ends. The output end of the adsorption dust removal device 2 is equipped with an output pipe 201. The end of the output pipe 201 away from the adsorption dust removal device 2 is located inside the grille 103. The grille 103 has an air groove inside. Multiple sets of dust removal spray guns 106 are installed at equal intervals on the outer side of the grille 103 near the position of the air groove inside. One end of each set of dust removal spray guns 106 extends into the interior of the air groove.

[0034] An adsorption tube 202 is installed inside the adsorption end of the adsorption dust removal device 2, and one end of the adsorption tube 202 away from the adsorption dust removal device 2 is located inside the dust removal mechanism 3.

[0035] Reference Figures 1 to 3 as well as Figure 6 As shown, the present invention provides a duct ventilation system for tunnel cooling. The dust removal mechanism 3 includes a servo motor 301, wherein the servo motor 301 is installed in the middle area of ​​the side of the grille 103 away from the filter screen. A transmission rod 302 is installed at one end of the servo motor 301. An air chamber is opened inside the transmission rod 302, and a protective chamber 303 is movably sleeved on the outer wall of the middle area of ​​the transmission rod 302.

[0036] One end of the adsorption tube 202 is installed inside the protective chamber 303. The adsorption dust removal device 2 is input with a stable working current. The adsorption end of the adsorption dust removal device 2 generates an adsorption force, which is transmitted to the inside of the protective chamber 303 through the adsorption tube 202. The adsorbed air inside the protective chamber 303 is transmitted to the air chamber of the transmission rod 302. An adsorption plate 304 is installed at the end of the transmission rod 302 away from the servo motor 301. The adsorption plate 304 has multiple sets of equidistant adsorption holes 305 on the side near the filter screen. The adsorbed air in the air chamber of the transmission rod 302 is transmitted to the inside of the adsorption plate 304 and then to the surface of the filter screen through the adsorption holes 305.

[0037] The specific workflow of this application embodiment is as follows: When the early warning system determines that the filter screen is clogged, the adsorption dust removal device 2 inputs a stable working current, the output end of the adsorption dust removal device 2 generates compressed air and transmits it through the output pipe 201 to the air groove opened inside the grille 103, and transmits it directly to the non-dust contact surface of the filter screen through the dust cleaning spray gun 106. Under the operation of compressed air inside multiple sets of dust cleaning spray guns 106, the dust in the filter screen pores is cleaned.

[0038] The adsorption end of the adsorption dust removal device 2 generates adsorption force and is transmitted to the interior of the protective chamber 303 through the adsorption tube 202. The adsorbed air inside the protective chamber 303 is transmitted to the air chamber of the transmission rod 302. The adsorbed air in the air chamber of the transmission rod 302 is transmitted to the interior of the adsorption plate 304 and is transmitted to the surface of the filter screen through the adsorption holes 305, so as to recover the dust on the dust contact surface of the filter screen and the dust in the filter holes.

[0039] Reference Figure 1 as well as Figures 3 to 5 As shown, the present invention provides a duct ventilation system for tunnel cooling. The ventilation system 1 has multiple sets of sliding grooves equidistantly arranged on the inner side near the filter screen. The auxiliary dust removal component 4 includes multiple sets of sliders 403, which are sequentially fitted into each set of sliding grooves. The ends of the sliders 403 away from the corresponding sliding grooves are all installed on the outer side of the grille 103. Each set of sliders 403 has a telescopic plate 104 installed on the outer side near the grille 103. The outer side of each telescopic plate 104 is adapted to the inner side of the corresponding sliding groove.

[0040] Each set of sliders 403 is equipped with a first spring 401 on both sides, and a pressing rod 407 is installed in the middle area of ​​both sides of the slider 403. A hollow column 402 is sleeved on the outer side of the end of the pressing rod 407 away from the corresponding slider 403. A permanent magnet block 405 is installed on the side of the pressing rod 407 near the hollow column 402. An electromagnetic block 404 is installed on the inner side of the hollow column 402 away from the pressing rod 407. After a stable working current is input, the electromagnetic block 404 will generate a magnetic effect with the permanent magnet block 405.

[0041] A second spring 406 is installed on the inner side of the hollow column 402 away from the electromagnetic block 404.

[0042] In this embodiment of the application, the specific workflow of this part of the application embodiment is as follows: When the early warning system determines that the filter screen is clogged, the early warning system controls the electromagnetic block 404 located on one side of the grille 103 to input a stable working current and generate a magnetic attraction force with the corresponding permanent magnet block 405, thereby driving the first spring 401 on one side of the grille 103 to be in a compressed state. After the first spring 401 is compressed to a critical value, the electromagnetic block 404 on one side stops inputting current, the first spring 401 on one side returns to its original state, and generates a corresponding spring force to drive the grille 103 to be in a vibrating state, thereby accelerating the cleaning efficiency of the filter screen laid on the surface of the grille 103.

[0043] The specific workflow for this application is as follows:

[0044] Filter clogging monitoring: During operation, if the filter surface becomes clogged, most of the external airflow from the ventilation system 1 is blocked on one side of the filter. When the airflow on one side of the filter exceeds the rated value, the filter drive grille 103 moves into the ventilation system 1 until the grille 103 contacts the induction switch 105 and sends a corresponding warning signal to the warning system. The warning system determines that the filter is clogged, and the adsorption dust removal device 2, dust removal mechanism 3, and auxiliary dust removal component 4 input a stable working current to automatically clean and recycle the dust on the filter surface.

[0045] Filter cleaning and recycling: When the early warning system determines that the filter is clogged, the adsorption dust removal device 2 inputs a stable working current, and the output end of the adsorption dust removal device 2 generates compressed air and transmits it through the output pipe 201 to the air groove opened inside the grille 103. It is then directly transmitted to the non-dust contact surface of the filter through the dust cleaning spray gun 106. Under the operation of the compressed air inside the multiple sets of dust cleaning spray guns 106, the dust in the filter holes of the filter is cleaned.

[0046] The adsorption end of the adsorption dust removal device 2 generates adsorption force and is transmitted to the interior of the protective chamber 303 through the adsorption tube 202. The adsorption air inside the protective chamber 303 is transmitted to the air chamber of the transmission rod 302. The adsorption air in the air chamber of the transmission rod 302 is transmitted to the interior of the adsorption plate 304 and is transmitted to the surface of the filter screen through the adsorption hole 305 to recover the dust on the dust contact surface of the filter screen and the dust in the filter hole.

[0047] Assisted cleaning: When the early warning system determines that the filter screen is clogged, the early warning system controls the electromagnetic block 404 located on one side of the grille 103 to input a stable working current and generate a magnetic attraction force with the corresponding permanent magnet block 405. This drives the first spring 401 on one side of the grille 103 to be in a compressed state. After the first spring 401 is compressed to a critical value, the electromagnetic block 404 on one side stops inputting current, and the first spring 401 on one side returns to its original state, generating a corresponding spring force to drive the grille 103 to vibrate, thereby accelerating the cleaning efficiency of the filter screen laid on the surface of the grille 103.

[0048] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0049] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0050] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A duct ventilation system for tunnel cooling, characterized in that, include: A ventilation system (1) includes a ventilation duct (101) and a ventilation device (102). A grille (103) is installed on the inner side of the ventilation duct (101) near its outlet. A filter screen is laid on the side of the grille (103) near the outlet of the ventilation system (1). An early warning system is installed inside the ventilation system (1). The ventilation device (102) is installed inside the ventilation duct (101). The dust removal mechanism (3) is used to assist in cleaning and recycling dust on the surface of the filter screen. The dust removal mechanism (3) is located in the middle of the grille (103). The ventilation duct (101) is provided with an adsorption dust removal device (2) on the bottom surface near the grille (103) to provide the dust removal mechanism (3) with the adsorption force required for cleaning and recycling dust. Multiple sets of auxiliary dust removal components (4) are arranged at equal intervals on the outer side of the grille (103) to assist in cleaning dust on the surface of the filter screen. The ventilation duct (101) has an induction switch (105) installed on the inner side near the grille (103). When the filter screen is clogged, the grille (103) contacts the induction switch (105) and drives it to send a corresponding warning signal to the warning system. After receiving the warning signal, the warning system determines that the filter screen is clogged. The adsorption dust removal device (2), the dust removal mechanism (3), and the auxiliary dust removal component (4) input a stable working current to automatically clean and recycle the dust on the filter screen surface. The adsorption dust removal device (2) includes a set of output ends and a set of adsorption ends. The output end of the adsorption dust removal device (2) is equipped with an output pipe (201). The end of the output pipe (201) away from the adsorption dust removal device (2) is located inside the grid (103). The grid (103) has an air groove inside. Multiple sets of dust removal spray guns (106) are installed at equal intervals on the outer side of the grid (103) near the location of the air groove inside. One end of each set of dust removal spray guns (106) extends into the air groove.

2. The tunnel cooling duct ventilation system according to claim 1, characterized in that: The adsorption end of the adsorption dust removal device (2) is equipped with an adsorption tube (202), and the end of the adsorption tube (202) away from the adsorption dust removal device (2) is set inside the dust removal mechanism (3); The dust removal mechanism (3) includes a servo motor (301), wherein the servo motor (301) is installed in the middle area of ​​the side of the grille (103) away from the filter screen. A transmission rod (302) is installed at one end of the servo motor (301). An air chamber is opened inside the transmission rod (302), and a protective chamber (303) is movably sleeved on the outer wall of the middle area of ​​the transmission rod (302).

3. The tunnel cooling duct ventilation system according to claim 2, characterized in that: One end of the adsorption tube (202) is installed inside the protective chamber (303), and the adsorption dust removal device (2) is input with a stable working current. The adsorption end of the adsorption dust removal device (2) generates an adsorption force and transmits it to the inside of the protective chamber (303) through the adsorption tube (202). The adsorbed air inside the protective chamber (303) is transmitted to the air chamber of the transmission rod (302). An adsorption plate (304) is installed at one end of the transmission rod (302) away from the servo motor (301). The adsorption plate (304) has multiple sets of equidistant adsorption holes (305) sequentially opened on the side near the filter screen. The adsorbed air in the air chamber of the transmission rod (302) is transmitted to the inside of the adsorption plate (304) and transmitted to the surface of the filter screen through the adsorption holes (305).

4. The tunnel cooling duct ventilation system according to claim 1, characterized in that: The ventilation system (1) has multiple sets of sliding grooves equidistantly arranged on the inner side near the filter screen. The auxiliary dust removal component (4) includes multiple sets of sliders (403). The multiple sets of sliders (403) are sequentially fitted into each set of sliding grooves. The ends of the multiple sets of sliders (403) away from the corresponding sliding grooves are all installed on the outer side of the grille (103). Each set of sliders (403) has a telescopic plate (104) installed on the outer side near the grille (103). The outer side of each set of telescopic plates (104) is adapted to the inner side of the corresponding sliding groove.

5. A tunnel cooling duct ventilation system according to claim 4, characterized in that: Each set of sliders (403) is equipped with a first spring (401) on both sides, and a pressing rod (407) is installed in the middle area of ​​both sides of the slider (403). A hollow column (402) is sleeved on the outer side of the end of the pressing rod (407) away from the corresponding slider (403). A permanent magnet block (405) is installed on the side of the pressing rod (407) near the hollow column (402). An electromagnetic block (404) is installed on the inner side of the hollow column (402) away from the pressing rod (407). After a stable working current is input, the electromagnetic block (404) will generate a magnetic effect with the permanent magnet block (405). A second spring (406) is installed on the inner side of the hollow column (402) away from the electromagnetic block (404).

Images